Tuesday, July 29, 2008

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Hitachi TV Model: C2133TN (Nokia Stereo Plus) Chassis)Very strong red content in the picture, sometimes the fault would clear with the strong red content fading until the correct greyscale was achievedAfter much searching around i found the problem. There was a very small crack in the solder at RH23, this is a 2K4 surface mounted resistor located at the back of the tube base. Resoldering both sides of it cured the fault(Sparky)
Jvc TV Model: C-V14EKS/B/W (Onwa Chassis)No RedI was hoping the nvm had become corrupt and turned the red drive down but it was fine (To enter service mode press and hold vol up and vol down on the front panel and switch set on). Thankfully ZD405 (8V2) had expired (almost s/c) and removed the red(Andy Doswell)
Sanyo Video Model: VHR776EDeadCheck and replace PR512 (which is located towards the front right hand side)(T.t.r.s. - Tim)
Nikkai TV Model: BABY 10No / int luminancePoor contacts within the service switch(John)
Sony TV (AE1 Chassis)Field non linearity and short pictureCheck / replace C531 (680uF, 25v), only slightly leaky, but a new one cured the fault(Anonymous)
Philips Video Model: VR200Unit not working, no FL display, ticking from PSU, head drum twitchingElectrolytic cap in PSU primary dried up (47uF, 50v)(Anonymous)
Ideal/Slx TV Model: IDTV28T/IDTV28N/SLX28T2/28N (SM2 Chassis)EW fault then set went dead (tripping), R711 on EW panel burntCheck for dry joints on C620 (0.47uF, 250V), if dry replace then check Q602 and R618 (5K6). Also it is worth replacing Q580 anytime these sets come into the workshop with a BF422(Leonard O'Brien)
Philips TV Model: 25PT4423 (L6.2 Chassis)Stuck in standby, LED on, no HTThere may be no 5V to the microprocessor. Check R3509 and D6501. Replace R3509 with a 47k 1 Watt version (4822 053 10473). D6501 is type BZX79B5V6 (4822 130 34173). Check the +150 volt rail, 145V is too low(Adel Ibrahim)
Rca TV Model: F27442 (CTC203AD5 Chassis)No picture and sound, only a high pitch sound at switch onRemove horizontal transistor and measure the resistance across any two pins. This value should be no less than 200ohms(Roughtest)
Sony TV Model: KV-M2131U (BE1 Chassis)Intermittent loss of syncronisation, both horizontal and verticalThe surface mounted power transistor on the teletext module requires resoldering. As there is evidence of scorching on the board the use of a more substantial component would be indicated perhaps with small heatsink(Desmond Armstrong)
Samsung TV Model: CZ-21D83NSDouble picture or raster shiftedCheck R414 (15K)(Leonard)
Sony TV Model: KV2565Dead with H. output short circuit, replacment blows short againFirst check power area and repair dry joints then change all high voltage (PF value) capacitors in the horizontal section, this fixed the problem(Imran Khan)
Mitsubishi TV Model: CT29B2STXVarious faults, dead, int. dead, poor frame, poor E-WChange all electrolytic capacitors in the primary. Check all large electrolytics in the secondary (Ie bigger that 470uF), check all capacitors around IC950 (error amp.). Most capacitors you will find are leaking electrolyte. Might be a long job!!!(Andy Doswell)
Sony Video Model: SLV-E800No picture - screen is empty. Sound is okCheck IC101 (BA7630F), if video signal comes to input (pin 1) but not present at output (pin 14) then replace this IC(Raymundo)
Panasonic Video Model: NVHD650BFault code F80. works occassionally then doesnt work at allThere is a plastic piece on the motor which rotates when you press play or eject. A plastic cap fits on the spindle of the motor. This slips and doesnt grip the motor hence does not turn the drive gears. Just glue or replace the part (use loctite or super glue)(Dal)
Philips TV (A10 Chassis)Procedure to view customer service menuPress Mute button on handset and any button on the TV, hold for a few seconds and menu will appear(Joe)
Ferguson Video Model: FV105HVVcr dead, slow oscillation in p.s.uReplace CP007 and CP008 close to the U4614B (Found this tip posted under Thomson VPH6601 which seems to have the same PSU)(Anonymous)
Philips TV Model: 32PW6526-05 (SA10E Chassis)Procedure to exit child lock with pin unknown / "locked" displayed on screenSwitch set on, press menu, select feature and press enter, select parental lock and press enter, then enter the code 0, 7, 1, 1 twice, the lock should now have cleared(Josh)
Fermendi TV (F19 Chassis)Procedure to invoke service modeI have used this method and it works (supplied from the makers manual). With tv off, hold volume up button on tv, switch tv on and keep holding volume up button whilst pressing standby on remote (this must be done within 4 secs of switch on) at no time let volume go, press the yellow memory button on the handset to store(Steve Taylor)
Toshiba TV Model: 28W23B (11AK37 Chassis)Procedure to enter the service modePress the menu button then 4,7,2,5(Josh)
Toshiba TV Model: 28W23B (11AK37 Chassis)Picture displaced vertically, picture too high or lowThis problem was cured by entering the service mode (menu then 4,7,2,5), then pressing the green fastext button to access geometry settings, selecting VP1 (vertical position) and adjusting as necessary(Josh)
Sony TV (BE3D Chassis)Procedure to enter the service modePress standby, i, 5, vol+ and tv (TT should now be displayed on the screen indicating the set is in the service mode)(Josh)
Grundig TV (CUC7301/3 Chassis)Power supply blownThis is often caused by a dry joint at C669 in the snubber network but also check the mains bridge rectifiers reservoir capacitor (47uF, 385v) for o/c, this item is not included in the ususal p.s.u repair kits and if not checked may result in a repeat blow up !(Josh)
Sony TV Model: KV32TS20Dead no click, Q502, Q601, Q602 shorted and blown fuse 602Change all the above parts and also check R647, C512, C525, D607, D608, D609, D610, D622, VDR601 off primary side of T605. I`ve also found T605 bad too. ToughDog, Sony has bulletin out on this model(Dwayne)
Sony TV Model: KV32TS20Dead, good tip that I always use to save changed parts after replacing Q502, Q601, Q602 and blown fuse 602I hook up 100 watt light bulb across fuse conection, then turn on tv, if light is very bright you still have a short. You saved the parts you changed, light should be dim and or blinks(Dwayne)
Sony TV Model: KV27TS20Intermittent video or snowResolder points A, B, C, D in tuner PCB, check cold solder on tuner shield 2-106-349-21(Dwayne)
Ferguson Video Model: FV70BDim displayCheck capacitor CP41 (220uF, 10v)(Tom)
Panasonic Video Model: NV-L20Poor playback and recording (looks like poor heads). Also shows as interference when playback appearsCheck all electrolytics in secondary of switch mode power supply(Ray)
Hitachi Video Model: VTM640Low video levelReplace C1530 (47uF, 16v)(Mt)
Jvc Video Model: HRJ235EKRubbing noise at start of full tape with horizontal picture judderExcessive take up tension! Replace take up clutch item 25, Pt no PQ46323A-1(E.T. Sandy)
Vestel TV (11AK19 Chassis)Dead, ticks from switch onLop transistor dead short (BU2508AF) also check cap (12nf)(Jonny)
Bush TV Model: WS6671 (11AK19 Chassis)Very low width and bowed verticals,no ew correction. R626 o/cC630 (390nF, 300v) faulty, located next to scan socket. This fault can also be caused by R629 (2R7 fusable) o/c. In my set C630 was dry-jointed but not faulty. Check generally for dry joints in the E/W and PSU areas. Note that R629 is a safety component(Ian - Brighton)
Ferguson TV Model: TX98 (TX98 Chassis)Intermittent tripping and switching to channel 1Replace IC11 (TDA8138) 5/12 volt regulator ic(Steve - Comet service)
Metz TV (11AK20 Chassis)Switches to standby when hotCheck 4.00Mhz Xtal (Wayne Haverson)
Sony TV Model: KV-M1400D (BE2A Chassis)Retrace lines on picture, 60V on RGB transistorsC700 (100nF, 250V) seems to be leaky, but main problem is R723 which had gone from 27R to 1.2M, both on CRT board(Anonymous)
Sony TV Model: KV-M1400D (BE-2A Chassis)Dead, after replacing ic601 (STR54041) and Q601 (BC637) standby led blinks red twice, then blank, no HVReplace fuse p801 (ICPN15 - 0.6A 50V, TO92)(Anonymous)
Amstrad Video Model: DD8900Bottom deck fails to load tape when pressing play/record. Sounds like loading motor is labouring when the pinch roller engages capstan shaftThe loading may complete if black pulley wheel on motor drive is 'helped'. Look for stiff linkages before suspecting Motor(Anonymous)
Tatung TV (F Series Chassis)Starts up with black raster, then shuts down with LED blinking 4 timesThis is the micro telling you that the auto grey-scaling procedure has failed. Change resistors R909, R913 & R922 (180k, 1%) on crt base PCB. You will probably find that all these have gone high(Rob Hancock)
Matsui TV Model: 1408TLocked out by incorrect pin number being used - and Dixon's want £25 to do this!1: Press standby on remote control to switch TV on2: Press volume minus button on set front, while pressing 7 on remote control for at least two seconds, until 'OK' appears in the middle of the screenThanks to my son who has no TV training at all!!(James)
Panasonic TV Model: TX28W3 (EURO 1 Chassis)No raster, only heard a pip from speakers that went after a few secondsC623 and R628 changed(Nima)
Grundig TV Model: ST70-460 (CUC4635 Chassis)Intermittent start up and trippingDry joint on R636, vertically mounted 4.7 ohm wirewound in sw mode circuit(Peter Nutkins)
Nei TV Model: 2031TXNo PowerR802 open circuit. Unknown device (poss. Thermistor). Replaced with 15K, 2Watt(Anonymous)
Sony TV Model: KV-2565MT (SCC-E64P Chassis)Horizontal output transistor Q802 goes short repeatedlyC818 (1uF, 250v) had lost capacity, replaced C818 and Q802 and unit was ok(Fiesta Service)
Sony TV Model: KVD-C21MF1 (SCC-K68A-A Chassis)No sound and screen not appearing, B+ okNo input on pin 5 of IC301 (MC44002P), R339 had failed, once replaced the unit was ok(Fiesta Service)
Bush TV Model: 28ZKFSet powers up but no sound and blank rasterRF10 o/c (33 ohm)(Rod)
Panasonic TV Model: CT20G12VDeadThis was found to be due to the STR58041 chip(Anonymous)
Philips TV Model: GR2.4AA (GR2.4AA Chassis)No picture, just black screenCheck R3414, an SMD chip on the CRT board. There could be invisible bad solder joints(Kalle Birgersson - Sweden)
Panasonic Video Model: NVJ40Poor picture, may clear as unit warms upCheck C27 in the power supply secondary(Anonymous)
Philips TV Model: TX2112 (U5N Chassis)Sound mutes for too long when changing stations (up to 30 secs)The MAB8441-T005 was faulty (no longer available)(Anonymous)
Thorn Video Model: VR414LVADead, no functions, no displayReplacing CP19 (1000uF, 10v) in the PSU restored operation(Col)
Goldstar Video Model: P13IDead, no functions, no displayReplacing CP19 (1000uF, 10v) in the PSU restored operation(Col)
Goldstar Video Model: P13IE-E in playback & dim displayCP25 (100uF, 10v) in PSU cured dim display. No need to dismantle whole deck. W152 was ok(Col)
Thorn Video Model: VR414LVAE-E in playback & dim displayCP25 (100uF, 10v) in PSU cured dim display. No need to dismantle whole deck. W152 was ok(Col)
Jvc Video Model: HR-S4700EKIntermittently crunches tapes on ejectI had to use a clear service cassette to see what was occuring during the eject sequence and found that during the unthread, the take up reel was rotating anti-clockwise and was not being braked, the felt pad on the take-up sub brake had fallen off the arm, a new brake cured the problem(Thunderdunc)
Firstline TV Model: 1433GRChopper secondary voltage (115V) was way too high (around 220V)C615, Q605, Q606 and R308 had all died, The value of C607 (47uF) was out of range. Note: This set is equivalent to the Princess GT-1412(Armando Valente)
Sony TV Model: KV-HF14M80 (BG-3S SSC-U21F Chassis)Dead in standby mode, no primary voltages, led orangeChange uMICOM CXP86449-627S(Brij)
Thomson TV (ICC17 Chassis)Picture lacking in contrast and brightnessThe symptoms suggested a beam limiter fault, replacing transistor TL02 (BF422) which was found to be leaky produced excellent pictures(Kind Regards - LB)
Philips TV (L6.2 Chassis)Power supply will not start upResistor 3506 (0.33 Ohms, 1w fusible) had failed, a replacement brought the set to life(Kind Regards - LB)
Schneider TV Model: TV9Line output transistor short circuitReplacement did not clear the fault and the protection circuit was operating. C307 (0.047µF, 200V) was found to be o/c, when removed it had a bubble on the side, it's part of a potential divider network (C306 & C307 in series, centre of which goes to the protect circuit), it is hard to get to being right by the line output transistor(Kind Regards - LB)
Beko TV Model: 14.2The +Ub voltage (+140V) was not present, fault in switching power supplyTransistor T601 (SK2545) had failed, replace/check resistor R602 (1Meg ohm) in switch control circuit, also if T601 is s/c the control chip TDA16846 will also be damaged(Gordon w.Cox)
Sony TV Model: KV25K5U (FE1/FE1A Chassis)No sound or vision, front led flashingReplaced line output transistor, resoldered dry joints on driver transformer. Also check for any other poor joints in this section. Have used a 2SD1878 as replacement, This seems to work ok as the Sony original is very expensive(A. Gould)
Sharp TV Model: 6GF63H (DA-50W Chassis)Noise from speakers / center speaker even with the volume set at minimumReplace IC1300 (BA4558F 8pin smd) and IC1302 (TDA7480) which are both located on the central speaker amplifier plug-in PCB(J.C.)
Jvc Video Model: HRJ205Dead, no negative voltages on psu connectorCheck R32 (100 ohms) in psu for o/c(Anonymous)
Normanse Spectra TV Model: 5207 (F11 Chassis)Dead set, power supply tickingR164 was found to be open circuit(Anonymous)
Decca TV Model: D28NT92S (PT92 Chassis)Dead set, no stby ledCheck RP06 (3.9meg), RP05 (1meg) and RP07 (15R) in psu(Anonymous)
Sanyo TV Model: Spectra 2000Picture had only wide screen effectFound set on the street ! beautiful little 14" tv, still looks like new, replaced 33uF, 160v cap in power circuit as it was bleeding its guts onto the pcb, has worked perfectly ever since !(Ronyec Andras - Montreal)
Teac TV Model: CT-M685 (ONWA Chassis)Set stays in standby intermittantly or will int switch off to standby also brightness and contrast slightly lowResolder all joints in the power supply (very small dry joints that need a microscope to find !) also check / replace replace capacitors C109 and C110 and check condition of other psu caps.(Pappy)
Panasonic Video Model: NVJ30 (G-Deck)Severe patterning of white streaks filling the screen in playback. E-E is okC1122 in the power supply unit. It is probably leaking its contents(Rob Marshall)
Panasonic Video Model: NV-366Front buttons (Play, FF etc.) don't workCaused by faulty remote control jack socket - this machine uses a wired remote(Anonymous)
Matsui TV Model: 1420TDead set, P.S.U. not firing upResistor R511 (1.8M) open circuit(Anonymous)
Salora TV(J Chassis)Start up problemsReplace CB712 and CB726 in the power supply. Both are same value (4.7uF, 50V)(Anonymous)
Goldstar TV Model: 20A80No picture, FR406 okCheck the video output amplifier stage for failure(Zubair Almas)
Panasonic Video Model: NV870 (D1 Mechanism)Noisy FM audioAdd a 0.01uF 50v ceramic capacitor between pin 9 of IC4509 and ground (only applies to units with serial numbers prior to D5K)(Anonymous)
Panasonic Video Model: NV870 (D1 Mechanism)Mode switch chattersIf it still does this with a new mode switch, check the serial number. If it's prior to numbers beginning A5K... then add a 560 ohm resistor and a 50v 0.68uF electrolytic capacitor in series, between pin 2 of IC6002 and ground.(Anonymous)
Panasonic Video Model: NVF70No sound via SCART socketFit R4908 and R4910 on input/output pack, as they may be missing ! (Both 47 ohm)(Anonymous)
Panasonic Video Model: NV730B (D1 Mechanism)Video heads wear very quicklyCheck the back tension if you haven't done so already - it was set too high when manufactured.(Anonymous)
Sony TV Model: KV2020Picture is folded over at the top and curled at the top left hand sideReplace C559 and C560(Anonymous)
Sony TV Model: KV1412Noisy pictureReplace relay RY481 on S2 board(Nigel Burton)
Sony TV Model: KV1412Vertical line at the left of the pictureReplace L506 on A board, replacement part number 1-407-366-00(Nigel Burton)
Sony TV Model: KV1412Set reverts to standby mode when switched on, because IC003 does not reset correctlyReplace IC003 on A board, IC type CX523013P(Nigel Burton)
Medion TV Model: MD7103VTS (11AK18 Chassis)Power LED and Sound OK. EHT Voltage for 1 Second after switching on via Remote ControlReplace vertical deflection circuit IC605 (TDA8361) - don´t forget to apply Heat transfer compound !!(Rainer)
Sony TV Model: KV28WS3 (AE3 Chassis)No sound or picture, in protection after 2 secondsNo 6.5 Volt on G-board. Fuse resistor PS605 is broken on G-board. Cause: bad contacts(Jan Post)
Philips TV (ANUBIS A-AC Chassis)Low 95v rail, (35v)C2530 open circuit completely(P willis)
Panasonic TV Model: TX28W3 (EURO 1 Chassis)At switch on a strange sound comes and goes for a few seconds, no sound and visionCheck R622, Q624 and T639(Anonymous)
Grundig TV (CUC5310 Chassis)Dead, no shorts foundLook for dry joints on the scan coil plug (may not be visable) also resolder the 12v and 5v regs(Anonymous)
Sony TV Model: KV21GMR1 MkIINo raster, flyback squeekingCheck the damper diode, in my case it was leaky, also check the electrolytic capacitor connected from the collector of the pin out trans.(Rams-Dumaguete)
Rca TV Model: F19220BK (CTC175L2 Chassis)Erratic screen / intermittent, eprom causes multiple possible symptoms, clicks on/off, tuner, you name it !Mass defect caused by bad solder in tuner, once fixed will probably last forever. Resolder tuner wrap-around groundings and all pins under tuner shield (bottom), if no success suspect a corrupted eprom(Anonymous)
Sony TV Model: KV20TS20Snowy or intermittent picture, makes popping soundSolder all coils in stand up board and tuner(Anonymous)
Philips TV (A10E Chassis)Randomly switching to scart input when the programme output from the tuner should be displayedThis is now becoming a common problem, the cause being the painter chip IC7064 which is located on the small signals panel, there are 8 different versions but only 3 common versions(Anonymous)
Schneider TV Model: DTV2Shuts off after 20 minutes or soDry joint on FBT(Chris Prestwich)
Sony TV Model: KV-M21TU (AE1 Chassis)Intermittent rolling and loss of luminance, improves as set warms upDry joints on tuner / IF board(Thunderdunc)
Sony TV Model: KV-21FS100 (BA6 Chassis)No power, R640 openChange R640, IC600 and associated electrolytic capacitor(Iván Meléndez)
Philips TV-Vid Combi Model: TelevideoNo vcr transport functions via remoteThis is the symptom when the remote control has switched from the correct VCR1 mode to the VCR2 mode (usually due to low battery voltage or the batteries being replaced), to rectify the situation hold both the stop button and button 1 together for 5 seconds, alternatively for different remote versions holding the stop button and button 2 together for 5 seconds will rectify the problem(Josh)
Toshiba TV Model: CF3060KProblems with screen sizeLook out for 2 x 2.2uF electrolytics (sometimes red in color)(Anonymous)
Daewoo TV-Vid Combi Model: DVT-1482P (CP310 Chassis)Totally dead except for a few rapid flashes from the green led at switch onC811 a 100uF, 16v capacitor in the power supply was the cause, it is located next to the chopper transistor's heatsink. This is the same TV/Video as the Goodmans TVC14VP(Rob Marshall)
Panasonic Video Model: NV-HD675 (Z-Mech Chassis)Intermittently shutting down with HO1 in displayProblem can be caused by stator board VEK9017 but in this case the problem was the upper drum assy! The bearings seize up when warm!(E.T. Sandy)
Sanyo TV Model: CEP3011V-30 (A1-B14 Chassis)After switching on, no longer able to switch-off with remote control, standby light comes on with sound muted. (Original remote control: RM-700)Opto-coupler PC113 faulty(Esohe)
Ge TV Model: PTK195AA (PTK195 Chassis)Works fine for 10 or 15 min. (or sometimes 1 or 2 days) then bows from top and loses convergenceReplace the STK730-130, located on small board above the convergence module(Clonch tv)
Lenco TV Model: 14P1MNAStandby onlyCheck R101 (4.7ohm), TR102 (C6180) and C126 (47uF, 16V)(Akalipt)
Sony TV Model: KV-M1400 (BE2A Chassis)Insuficient vertical deflection. Line rolling on top of pictureReplace ceramic capacitor C524(Pm)
Tandberg / Seleco / Sinudyne TV Model: 3TS645 (PC170 Chassis)No vertical scan, just one bright line in the middleSuspect R235 (18kohm), in some cases the TDA3654 may also have failed(Jonnykvist)
Grundig TV Model: M70-490/9 TEXT (CUC3800 Chassis)No sound, picture okWhen shifting up the channel frequency using the fine tuning, a very weak sound could be heard. Replaced the sound IF demodulator chip U2829B(IC2110)(Rui Loureiro - Portugal)
Sanyo TV Model: CEP2190MNo soundIC901 (TDA4935) blown due to excessive supply voltage, capacitors C619, C623, C810, C600, C601, C859 defective. Also verify R822(Jeroni Paul)
Jvc TV Model: AV25S1EKField collapseResolder TDA3654 as joints appear good but on application of soldering iron show to be dry(Pj)
Mitsubishi TV Model: CS40503Sometimes will not power up, missing 15 volt standbyReplaced D982 and C982, both leaky(Kami)
Sony TV Model: KV24FS100Will not power, led blinkingcheck R640 (1K 1/4w) if open replace ic600 (8-759-670-30)(Kami)
Schneider TV Model: STV630UKOnly half a screen of frame scanReplace IC401 (TDA8177F). If any blanking problems occur after chip replacement, check R327 (1ohm) next to IC401(Anonymous)
Sharp TV Model: DV6632H (4BS-C Chassis)Led changes from green to red, fails to start up, no EHT but secondary voltages in psu ok (150V ok)Check Q601 and Q606, these are Q600 LOPT drivers, there should be 2V P-P on base of Q606 and 150V on collector of Q601, replace Q606 with a BC182 (check pinout)(Steve May)
Matsui TV Model: 25M3Failure to start up, led pulsesCheck for dry joints on R541 and D436 located next to L.O.P.T(Niall)
Proline TV Model: 28N1 (F19 Chassis)Procedure to invoke service modeI have used this method and it works (supplied from the makers manual). With tv off, hold vol up button on tv, switch tv on and keep holding vol up button whilst pressing standby on remote (this must be done within 4 secs of switch on) at no time let vol go(Steve Taylor)
Sharp TV Model: DV7045SNNo vertical deflectionR615 open (0.13 ohm 1/2W). Also resoldered many bad solder joints(Jeroni Paul)
Jvc Video Model: HRD750Tracking does not lock. Picture runs up and down occasionally(Very) Small electrolytic caps on the drum circuit board must changed (They may be the bigger can type, if you don't find small ones)(Lassi Uuu)
Toshiba TV Model: 175T9BLine tearing and incorrect field lock when cold47uF electrolytic AGC decoupling capacitor inside tuner/if unit(Colin fairfield tv)
Philips TV-Vid Combi Model: 14TVCR240Poor tape transport, tape is crumpled, upper or lower side gets rippledReplace the capstan roller, if the tape transport is still not smooth check the guidepole (between the audio/control head and the capstan), tape must touch border-ring. Adjust the audio head position (screws marked A and T)(Anonymous)
Bluesky TV Model: TDX-70 (11AK19 Chassis)HT low / missingQ608 (BU2508) dead (short-circuited). Needed replacement. That's all...(Anonymous)
Panasonic TV Model: TC2195DRS (Z3T Chassis)SMPS noise. Low volt and high current on Usyst, no screen or soundFBT TLF15606F(Anonymous)
Irradio TV Model: MC-FBC-006Dead, i.c. oscillating (may start if i.c. heated)Check / replace R602 (2.2M, 1/2w)(Anonymous)
Sony TV (FE-1 Chassis)Procedure to return EEPROM to factory default settingsSelect programme 59, enter the service mode and at the TT-- prompt enter 49 then 24 (for UK)and 08 then switch off at the mains(Anonymous)
Sony TV (FE-1 Chassis)Main p.s.u starts up then almost immediately shuts downThis was due to IC603 (SE135N) being faulty(Josh)
Sony TV Model: KV-E2543ESet goes to V protection mode (led flashes 13 times)Check if there is saw signal at STV8379. If there is no signal, suspect dj in connector links between both motherboards, especialy the one very close to plastic frame(Jose Carlos Pinto - Oporto)
Toshiba TV Model: 2505DBStretched frame or frame collapseReplace modification diode 570 on copper side(Anonymous)
Hitachi TV Model: C2846TN (311 Chassis)Frame collapse or dotted lineCheck and replace frame ic (TA8427K) or check R710 for open circuit, also check for possible dry joints on D601(Jimmy n)
Sony TV Model: KV-A2923Set starts, horizontal and vertical deflection work, HT ok, crt heaters ok, but no sound or pictureI turned the G2 voltage up and noticed a white screen with flyback lines, frame ok. I detected two badly soldered double diode rectifiers in the secondary part of the power supply ! I checked all other joints, and everything was ok !! success(Anonymous)
Hitachi TV Model: C1714TFrame collapse, causing set to go dead, also can cause the regulator transistor, to go s/c. BUT12AF. H.T. unstableCheck R951 (39K) goes high, in this case 65K, causing HT to go high(G3xxr)
Philips TV (GR2.1 AA Chassis)Poor picture quality from CVBS EXT1 and EXT3. Low intensity high saturation. Loss of sync. Shock and temp dependentDry joints on SMD resistors 3014 and 3019 on IF/Sound module other side of encapsulated TDA2549(Choc's maker.)
Sony TV Model: KV-A2923Standby led blinks slowly, a few times, chassis won't start upI changed the vertical deflection ic type TDA8170 and I measured two leaky capacitors in the power supply. Better to change all 4 capacitors in the power unit, everything was then ok !(Anonymous)
Sony TV Model: KV21M1DPicture disapears a moment after changing program. Raster/OSD okReplace TDA9806 ic(Apostol)
Goldstar TV Model: CBT-9745 (PC91A Chassis)Attempts to start up. When main switch is pushed ON, relay coupling and decoupling (on-off, on-off)Replace: C805 (47uF, 50V) next to the TDA4605 and C801 (1uF, 50V)(Zoran)
Goldstar TV Model: CBT-9745 (PC91A Chassis)TV dead. PSU ok, led lit. When button pushed on remote the LED goes out but set does not start (Missing HF voltage)Replace: C417 (1uF, 250V) Elko for HF oscill. (next to HF trafo)(Zoran)
Philips TV (FL1.1AA Chassis)Int shutdown with lights flashingCheck the 18v zener D6376(Anonymous)
Philips TV Model: 20PV164-05Vertical frame collapseChange vertical output drive IC and nearby electrolytic capacitor(Bugtom)
Nokia TV (FX Chassis)Left part of picture missing after fitting vertical modification kitMake sure you have fitted the extra capacitor between pins 8 and 9, instead of 10 and 9. Fitting incorrectly will destroy the sandcastle pulse and make the picture appear strange(Kalle Birgersson, Sweden)
Nei TV (CE25 Chassis)Dead - PSU clickingDry joints on D116 and C131 causing blown BU508A(Andy Fraser)
Grundig TV (CUC5310 Chassis)Picture int disappears leaving snow on screenResolder the Xtal in the tuner(Kalle Birgersson, Sweden)
Schneider TV Model: STV630UKFrame CollapseReplace IC401 (TDA8177F) and resistors R325, R326, R327(Jim Ross)
Matsui TV-Vid Combi Model: TVR185Int soundCheck voltage on sound IC, if it drops with high volume change C620 (1000uF, 25 vdc)(Arl)
Sharp TV Model: 66GF-63HBlank grey raster with flyback lines,sound present and okCheck pin 2 on connector H on tube base for 12V if high then check Q912 (BC337) for o/c(David Mclellan)
Sony TV Model: KF60XBR800No picture no sound timer light flash 44 fast 45 then 5 times then 5 timesReplace power block part # 1-468-510-11(Mervin)
Toshiba TV Model: 198X6MHorizontal output continues to shortCheck capacitors C403 and C408 (both 50v) these two caps tend to change capacitance(Aze - Philippines)
Philips TV Model: 28PW6005 (A10 Chassis)Changes to ext 1 when watching tv (ok with video input)Painter ic IC7064 failed on the ssb (small signals board)(Anonymous)
Philips Video Model: Turbo DeckChews tapes and poor trackingFit new pinch roller(Cee dees)
Thomson TV Model: RP46East-west and north-south bowing. Really bad convergenceThe extra power supply is not working. Check R18 on primary side. It should read 220Kohm(Kalle, Sweden)
B and O TV Model: LX5500Sound disappears from time to timeIf there is sound all the time via scart, but problem with both mono and stereo via tuner, check R137. It is a 4k7 pot on the tuner board(Kalle, Sweden)
Rca TV Model: F27442 (CTC203AD5 Chassis)No power, all standby voltages okReplace the guide plus. is located to the side of the tuner(Fher)
Philips Video Model: VR678Reel brakes not operatingDue to broken plastic pivot for pulse slider (item 110) mounted on chassis (does not look like replacement part but wve stock holder, pulse mech kit Pt no. 16256HL)(Anonymous)
Bush TV Model: 2071NTX (11AK19 Chassis)Black screen from tuner but OSD (menus and channel no.), teletext and sound work normallyQ500 and Q504 blown, replacement cured fault. Removing R508 also restored picture. Fault puts TDA8840 in RGB insertion mode continuously, so separated RGB input might still work(Joe Kelleher)
Magnavox TV Model: RP2781 C101 (27X105-00AA Chassis)No vertical deflectionIf resistor R445 (1ohm) has gone open circuit this may cause IC550 (LA783x) to also fail. Replaced both IC550 and R445(Daniel)
Sony TV (FE-1 Chassis)Procedure to display past error codes and the number of times they have occured (particulary useful for ongoing intermittent faults)Enter the standby mode then press the on-screen display button (i+), 5, volume down, and finally the tv button. Note: the error count can be reset by pressing 8 then 0 on the remote control(Josh)
Sony TV (FE-1 Chassis)Intermittently displays bright red/green/blue raster then shuts down with led flashing 2, 4 or 5 timesAmazingly this was due to the CRT being faulty !(Josh)
Philips TV Model: 33SL5796/16B (FL 1.0 Chassis)Snowy picture specially in VHF band. After about 5 minutes, picture snowy in all bands. About 10 minutes after switching on, no picture nor sound, just snow on the screenReplaced the TUNER/IF. Original code was FQ816ME which is no longer in production. Replacement code is FQ916DME(Rui Loureiro - Portugal)
Sony TV Model: KV-21RXR1Excessive brightness/ brightness control reverses its functionWhen setting brightness to minimum the pic became very bright, setting to maximum the picture became dark ! Found that R301 (270k ohms) near the jungle IC was o/c(Aze)
Philips Video Model: VR6448 (20921 Chassis)Mechanism jammed, some posts hard to turnGrease has turned into cement!! Oil most of the moving parts, and move them to ensure oil penetrates(Anonymous)
Universum TV (11AK19 Chassis)Narrow PictureAfter resoldering joints in the line output stage, check R629 (27ohms, 1/2w) safety resistor to E/W FET, also o/c capacitor C630 (0.47, 250volts). According to the schematic R629 is 2.7 ohms(Conrad626)
Philips TV Model: 14PV220 (EPSILON 2001 Chassis)Dead (Totally)SMPS Chopper IC 7310 (MC44608 P75). I had no output from pin 5 with start up voltage pin 8 OK at 290V. If start up missing check start up resistor 3335 (1K). The only source I found for IC 7310 was Philips direct, part number 9322-143-51682, cost ~ £10(Paul van gelder)
Philips TV Model: 21GR2751 (G90B Chassis)Stereo set with no sound off air, maximum volume produces low hiss, some sound possible if station is detuned slightly. Sound via SCART is okReplace IC U2829B on audion panel(Bill)
Nordmende TV Model: GALAXY 55 (ICC8 Chassis)Dull pictureReplace (TT33) on tube base(B goan)
Nordmende TV Model: GALAXY 55 (ICC8 Chassis)Not tuning into channel33v missing (RH040) o/c(B goan)
Telefunken TV Model: PALCOLOR F531 (ICC9 Chassis)Stand-by led flash but set does not startReplace: TL19 (BUH517), DL21 and DL22, CL21 and CL22(Anonymous)
Orion TV Model: TV2501BDead set or will start up and shut downIRD shorted or leaky(Clonch tv)
Sony TV Model: KV2062Dark picture, No brightness control1000V+ Missing caused by open circuit IK resistor Near to FBT(Imran Khan)
Sony TV Model: KVFX29 (FX Chassis)White horizontal line (no vertical deflection)Check / replace R548, R549(Fabio)
Goldstar TV Model: CB20A86Dead, F801 blownCheck short circuit PTC coil (Degauss) short Diode on main Cap+ Check for failure of regulator IC801 (STR5707), Also check H.output D1651 for short circuit(Imran Khan)
Toshiba TV Model: 32ZD09G (C00S Chassis)Procedure to enter the service modePress the mute key on the handset once, then press the mute key for a second time but hold it down while also pressing the menu button on the set(Josh)
Schaub Lorenz TV Model: DS2 (DTV2 Chassis)Procedure to enter service modePress and hold service button on PCB inside TV. Press `C` on remote. Press program no. where your test picture is, You are now in service mode(Anonymous)
Akai Video Model: VSG2DPLTape loading carrage is very loose and sloppy will not load and eject tape properlyMode switch is faulty, out of alignment or has a bad connection back to the PCB. This switch is located underneath the tape drive mechanism (Anonymous)
Samsung TV Model: CB7230WTPower supply flutters and standby light dims outReplace mains filter capacitor (220uF 400v), also make sure the 4 capacitors in the primary are replaced (if they havent already been)(Anonymous)
Samsung TV Model: CB7230WTVertical failure (common fault)The reason for the failure is because the yoke is low impedance. The TDA3654Q i.c. has been designed to handle 12 ohms and over. Heat is the reason it destroys itself, the best cure is to place a small cpu fan on the heatsink(Anonymous)
Philips TV Model: 29FL1770 or 25FL1760 (FL1.0 Chassis)After replacing the line output transformer, the following sympton was displayed. Display flashing standby light and stereo IIShort s23 and s24 briefly, which will put the set into service mode. Option 1 should read 010 this applies only to the 25FL and 29FL. Option 2 should be 001 for sets with text and 004 for sets without text(John Carey)
Jvc TV Model: AV28WZ2Blank rasterReplace defective TDA6111Q for Red, Blue and green(Rens van der enden)
Thomson TV Model: 28VK-44ENo start-up when cold, warm OKChanges CP198 (47uF, 16v). Secondary Power supply(Rens van der enden)
Philips TV Model: 14PV184Dead set / blown fuseReplace D6313, 6314, 6315, 6316 and R3337 (2R, 5W)(Skyprobe)
Panasonic TV Model: TX21AD2DPStuck in standby but tripping, not the usual nvm problem and nothing s/cCheck and replace C804 (1uF, 25V), C806, C807 (100uF/50V) in supply. Use 105 degrees cap. types(Rob's TV-service - Holland)
Philips TV Model: 25FL1760 (FL1 Chassis)Set tries to go to stereo as indicated by the on screen display, but most of the time it is stuck in mono, when in stereo the right channel was hissingReplace the TDA8415 on the stereo decoder board, confirm this buy putting multimeter on pin 7 and 8, they should have a voltage of 3.2 volts(Cannny)
Philips TV Model: 29FL1770 or 25FL1760 (FL1 Chassis)No pictures or soundDisconnect the P1 and P2 plugs on the right hand side board. L.o.p.t. side. If the set now starts up then change all sound output IC's(Cannny)
Philips TV Model: 29FL1770 or 25FL1760 (FL1 Chassis)When selecting a channel it locks in initially but will then go off tune (as if the voltage tuning had varied)Replaced the TDA i.c. in the tuner i.f. section. (tried the capacitors first of course).(Cannny)
Philips TV Model: 29FL1770 or 25FL1760 (FL1.0 Chassis)Lights flashing at the front, if carefully interpreted they point to the primary of the power supplyReplaced 2SB 3795B chopper transistor, heated the heatsink with a hair dryer and it started right up, weird as the transistor was reading fine(Cannny)
Decca TV Model: D20RDE6 (D Series Chassis)No luminance(looks negative picture)We spent over 2 hours on this set and in the end we swapped the chassis with a scrap chassis and the fault remained ! It turned out the fault was with the CRT(Anonymous)
Samsung TV Model: 20A5Partial field collapseCheck IC301 (TDA8350Q) and the 2 associated unmarked capacitors (10uF and 100uF, 63v) and the 10ohms,5w ceramic resistor across pins 3/5 of the above chip(Anonymous)
Sylvania TV Model: SRT2127STTV will not start up, fuses okChange IC601(Paul Niswanger)
Panasonic Video Model: NVJ45 (G DECK Chassis)Appeared to be dead (like C1110 1uF, 400)Found C1125 and C1130 (680uF, 20v) leaking onto pcb. Remove sm.tx and clean board(E.t.sandy)
Orion TV Model: TV2501BDead setFound the IRD shorted(Anonymous)
Telefunken TV Model: Palcolor S540C (ICC9 Chassis)Geen blauwe kleurSMD transistor TV81 (Bc858) defect.(Anonymous)
Blaupunkt TV Model: MS70-79VT (FM500-70 Chassis)Horizontale gekartelde stoorpatronen in 't beeld 't eerste uur.Cond. C542 slecht(Digneffe Roger)
Samsung TV/Video Combi Model: VM3105No video, no audio. High pitch sound from power supply.Replaced blown fuseable resistor R417 (1 ohm, 1/2 watt)(Angel Torres)
Bush TV Model: WS6690D (11AK19 Chassis)At switch on front l.e.d turns green, blinks twice then set returns to standby. All h.t voltages rise, then fall away as set goes into standby33 ohm resistor feeding standby 5V reg was high (8 ohms - not shown cct diagram), in my case D605 on the 45 volt supply from the LOPT was faulty, although it measured o.k(Supadan)
Thomson TV (TX807 Chassis)Plain raster, retrace lines, no soundProblem in vif board, Resistor 68 ohms to +b supply line 12V(Guruji)
Ferguson TV Model: 626R (TX807 Chassis)(H)VTU Tension de sintonia 99v pero en el zener DH01 (ZTK33A) hay 22v.Sustituir zener 33v (ZTK33A)(Eisi)
Hitachi TV Model: C2146TNDead / int, led lit Check the 5v regulator IC952, 8v regulator IC951, standby regulator IC950 and the field output chip (TA8427K) or for dry joints on the regulators(Anonymous)
Nordmende TV Model: F20-9 (ICC7 Chassis)No colourCheck IV01 (TA8659) or IE50 (TEA2114)(Anonymous)
Goodmans TV Model: 2029TBlank raster with no sound (eht & tube heaters present)ZD401 s/c. Also take a look at R419. This set had been left on and R419 had cooked, it's value went to 20K(Terry)
Sony TV Model: KVG25M1DeadFound Q802 (C4927) short, replace with same type as no other types last(Seles)
Panasonic TV Model: TX-2470Cogging on vertical elements of picture, p.s.u squealingReplaced C808 (10uF, 50V) It had gone low in value(David Roberts)
Panasonic TV Model: TX21V1 (Alpha 2 Chassis)Bright red raster with flyback lines,shutting down after about 30 seconds with squealing from power supplyThe fault was due to the supply choke to the red output stage on the tube base panel being O/C, I can only assume the shut down was due to excessive beam current, a long soak test proved all was now ok(Thunderdunc)
Philips TV Model: 20PT3742Dead with LED blinking 4 timesThe vertical output IC. is short circuit(Imran)
Panasonic Video Model: NVG30Operates for about half hour to an hour and shuts downCapstan IC located on the underside of main PCB was dry jointed due to exessive heat. Remove and discard plastic cover and apply fresh solder removing old. Also refresh heatsink compound.(I'll try extending the heatsink too)(Farouk)
Ferguson TV Model: M8422U (ICC17 Chassis)LED flashes once the 6 times then goes to standbyReplace LOPT(Gordon )
Philips TV (L6.3 Chassis)Failure of fusible resistors R3929 and R3930 (both 560R)Unfortunately when these blow it is a sure symptom of LOPTX failure. When replacing these resistors, check the big blue 470nF, 250V capacitor behind them for signs of heat damage and replace if necessary, to avoid a recall (With resistors gone again!)(Rob Hancock)
Aiwa TV Model: VXT1400When switching to STBY raster remains and buzz noise is heared from the speakersCause: +B voltage (103 V) does not switch-off. Remedy: Replace defective C541(Vitaly)
Schneider TV Model: STV515No sound, no picture (dark screen)This was due to IC101 (VCU2133)(Anonymous)
Akai TV Model: TV2034Appears to be stuck in standby with the front led flashing and the h.t. at about half the correct voltageThis set led me a merry dance until i discovered the set was actually in the child lock mode !! The problem was solved once this was disabled using the remote control(Josh)
Sharp TV Model: 51DT-25HNVM modification / symptoms such as no video, tuning drift & reduced height from cold Fit 2 zener diodes (part no. RH-EX0404BM22) in positions D510 and D511, fit coil (part no. VP-CF120K0000) in place of link J122 and fit zener diode (part no. RH-EX0412BMZZ) in position D403(Josh)
Beko TV Model: 12.8The +Ub voltage (+118V) was not present, fault in switching power supplyTransistor T901 (SK2545 or P3NB60FP) had failed. Replace it and check C908 (22uF, 35V) replace it with 22uF, 50V. Also C912 (1uF, 25V) replace it with 1uF, 50V and D906 (1N4148) always replace it with 1N4948T(Jo)
Philips PLASMA TV Model: 42FD9954 (S FM24 Chassis)Green dots flashing over the screen in AV modeChange resistor value R3641 from 1K to 100ohm(Ab)
Beko TV Model: 12.8No audioCheck and replace ic101 with STV2246C and check and replace c135 (100uF, 16V) replace it with a 220uF, 50V. Also check and replace C308 (470uF, 16V) replace it with a 470uF, 50V(Jo)
Beko TV Model: 12.8Red or Green or Blue screenCheck and replace on crt module : D702, D703, D704 (all 1N4148) replace with type 1N4948T(Jo)
Toshiba Video Model: V642UKVCR is locked out, no sound, noise picture and front panel buttons do not work. NVRAM has been lostAccess the NVRAM menu. On remote hold A-Dub button for 10secs, VCR display will read TEST, then hold the menu button until the NVRAM menu is displayed on screen. I do not know the codes for this model, if anyone knows them please pass them on!(James)
Philips TV Model: 24PW6005 (A10E Chassis)Intermittent or no sound, mute transistor not switching on, ref 7701.Possible software problem! replace micro. Circuit ref 7064 part no 3111 250 545 11. If thats too expensive then try fitting a 22k resistor collector to base of transistor 7701 in mute circuit!(Phil)
Sharp TV Model: 37DT-25SDead, fuse okReplace Q701 (P3NA80FI) with a P4NB80FI-mbr. Check Q702 (BC338). Replace R703 (5,6E, 5W), all components in supply. Check print for poor contacts(Rob's tv-service - Holland)
Panasonic Video (K Deck Chassis)Procedure to display fault codesPress FF, REW and EJECT simultaneously OR where a Shuttle Dial exists press EJECT and CUE Forward(Anonymous)
Philips Video Model: VR6264No video or RF output. 12.3Vd.c. rail from 7002 (BD678) deadFault traced to dead short component located on PCB502 at componet ref no. 2024 (Philips blue radial capacitor 330uF, 16V). Philips part number 4822 124 40849. Cap has markings 036K0 T0 on it. Replaced and all sprang into life ok(Andrew Finch)
Continental TV Model: CE3701 (Grundig G1000 Chassis)Note on obtaining a replacment remoteIf you try to get a replacment remote no one will recognise it but the Grundig G1000 RC1/2/4, will work fine(Arl)
Alba TV Model: CTV4809Sound but no picture except for a couple of horizontal colour linesReplaced the frame chip TDA8356, set now ok(Errol Rankin)
Goodmans Video Model: VP2500Video keeps spitting out tapeRe-align video deck, clean dirty heads etc, all now ok with vcr(Errol Rankin)
Sony TV Model: KVX2952U (AEIC Chassis)Int black and white picture, colour disappearsReplaced IC TDA4580 and all ok(Errol Rankin)
Sony TV Model: KVX2972UOn/Off switch popping out when pressedOn/Off switch push pad broken, repaired push pad and switch now ok(Errol Rankin)
Ferguson TV Model: 59K7 (ICC5 Chassis)Severe vertical jitter on picture, horizontal sides of picture raggedReplacing the TDA4950 cured the fault(Errol Rankin)
Jvc TV Model: C14E1EKTuning drift,worse at high channel no'sDry joints inside tuner unit, connections between edge of pcb and lugs(E.T.Sandy)
Thomson TV Model: 24WK25US (ICC17 Chassis)No/Low contrast after EHT flashoverCheck/replace TL02 and TL59 in the beam limiter circuit(Mick Pope)
Sony TV Model: KVJ29MN21Unable to switch on with remote and no LED display at the front of setDue to STBY 5v missing. Checked and found the 5v reg/reset IC002. (L78LR05D) was s/c, replace the IC to clear the fault(Anonymous)
Philips TV Model: 25PT4103 (L6.2 Chassis)Blank screen no audio. No results from tuner or SCART socket. When G2 on LOPT is wound up a red line is visibleCheck R3438 (3R3). In my case this was o/c and a replacement restored normal opperation(Paul Godfrey)
Grundig TV Model: T55-640 (CUC 6300 Chassis)Sleep timer box on screen, remote & front buttons not workingChanged the EEPROM IC847 (24C04)(Urhoej)
Akura TV Model: AP2821-SDeadReplace RP05 (1 meg, 1/4 watt)(Darren)
Toshiba TV Model: 2573Stuck in standby.Replaced ZP82 (o/c) And tuner (internal short)(David Roberts)
Toshiba TV Model: 28WD98BStuck in standby, 16 volt line low at approx 8 voltsReplaced C872 (220uF, 50v), original had gone low in value(David Roberts)
Bush TV Model: 28ZKFTV seems to be dead apart from the front ledsOn main board check Ntype TX BD441 which is clipped to the main heat sink. The clip can come loose causing the TX to overheat and melt its connections to the CB. Remove TX test and if OK solder back on making sure TX has good connection to the heatsink(Anonymous)
Goodmans TV Model: 285NSBuzz on sound when volume at low levelDry joints on earth pegs of heatsinks of audio and frame output ICs - confirmed by comet service, long time ago!(Steve)
Vestel TV (11AK19 Chassis)Screen blanked out,with 4 coloured lines two thirds of the way down from the top of pic. Sound OKR704 (100 ohm resistor) connected to pin 6 of the frame output chip was o/c(Anonymous)
Philips TV Model: 28PW6332/05Loud bang internally, then completely dead. Plug fuse ok. Set about 4 years oldInternal 4A fuse blown. Bang was 330pF cap 2540 across PSU MOSFET exploding, suspect went s/c. Diodes 6513 & 6511 cracked and s/c. Replaced C2540. Could not get diode 1N5062/BYW55 rep, so replaced all 4 diodes with BY399. PSU MOSFET removed and checked,ok. Voila(Andrew Wilson)
Panasonic TV-Vid Combi Model: TX-14/21GV1No operation, standby led blinkingReplaced C840 (47uF, 25v) which had gone low in value(David Roberts)
Lg TV Model: CF-28A50T (PC-58A Chassis)Flyback lines on picCheck resistor R351 in front of TDA8350Q. It should be 3.6 K. I replaced with 3.8 K and it worked fine. Additionaly check: R708, FR704, FR359, Q351, Q345. If fault persists try replacing the TDA8350Q(Nikita - Germany)
Ferguson TV (ICC17 Chassis)Dead SetCheck DP21, 39V Zener, in the startup circuit(Anonymous)
Sony TV (FE-1 Chassis)No remote control operationCheck as necessary D203 (MTZJ-5.6B) on main pcb, D907 (MTZJ-9.1A) on pcb H1 or the remote control sensor IC900 (SBX1981-51), part no. 8-742-014-11(Josh)
Panasonic TV Model: TX28DK2 (EURO 4 Chassis)No surround soundAs Mark said in a fault on the Euro 4 chassis, Replace the TDA2030.On this model there are three TDA2030 s. If you have to replace any also as a matter of course replace the two regulators Q2701 and Q2702 or the chances are the TDA s wont last long(Anonymous)
Sony TV (FE-1 Chassis)No remote control operationCheck as necessary D203 (MTZJ-5.6B) on main pcb, D907 (MTZJ-9.1A) on pcb H1 or the remote control sensor IC900 (SBX1981-51), part no. 8-742-014-11(Josh)
Sony TV (FE-1 Chassis)No soundThis may be remedied by entering TT24 in the service mode, if fault persists Q202 (2SC2412K) could be leaky(Josh)
Sony TV (FE-1 Chassis)Pressing the screen format button displays wide, smart, zoom and 4:3 modes but settings have no effect on picureEnter TT35 in the service mode to select a 4:3 CRT(Josh)
Sony TV (FE-1 Chassis)Purple line down pictureReplace IC301 (CXA2060AS), part no. 8-752-082-35(Josh)
Sony TV-Vid Combi Model: KV-20VM20 (SCC-H16B-A Chassis)Would not eject the tapeReplace Elevator activator rack (Broken) REF# A34 OEM# 9-908-164-01. - UL# 146T - Set MFG. by Goldstar Similar To: Zenith TVR1920 & KV-13VM20(Don Hutcheson's tv service center)
Imerial TV Model: 36M92 (11AK03 Chassis)Tv stays in stand-by when the power is swiched on. No response from the remote or any button on the setR603 (3.9Kohm, 5W) was o/c(Patje - Belgium)
Luxor TV Model: MP63P1 (6362-71 Chassis)Totaly dead without any signs of life!Flyback transitor failed (S2000AF)(Jonnyk)
Philips TV (A10E Chassis)F on top righthand of screen then loss of geometery data and int shutdown, unable to restart but when try do so set cuts outPainter IC failure, A small 100 leg device a joy to change if you have the right gear ! Ref IC7064 also updated software on new IC(Christv)
Samsung TV Model: CT566 (K51A Chassis)No powerVoltage not changing on pin 18 IC901 (SZM-368ET2)(Anonymous)
Nokia TV Model: SP71L1Popping sound from the high voltage then shuts offChange TDA8350Q and the 22ohm resistor if its burned(Jonnyk)
Philips TV Model: 28ST2781 (GR2.2 AA Chassis)Dead, psu tickingFlyback cap (11nF, 1600V) was burned which caused the BU508AF flyback transistor to fail. Changed both(Jonnyk)
Beko TV Model: 30328TWhite line down centre of screen (top to bottom}Replace C805(Brian odonnell)
Telefunken TV (TX92F Chassis)Dark pictureReplace RL03(Kostas - Greece)
Samsung TV Model: CB7230WTHigh pitch frequency squeal from transformerFix, by replacing the main transformer which costs up to $350 Australian Dollars or doing it the cheaper way covering the capacitors around the Transformer in glue as they cause frequency to run through to the main transformer which make this noise(Anonymous)
Nordmende TV Model: SC63SF (ICC9 Chassis)OSD appears as one big horizontal line with wrong colours and noise (looks like no hor. sync). Teletext is okReplace proc. IR01 (ST9293) which contains the OSD functions. (expensive IC)(Harryd)
Philips TV Model: 20GR1250/52R (GR1-AX Chassis)Tv turns on automatically. Power supply works well, +5V present but seems that CPU (7700) does not (no standby mode), no remote or control on the front of the setAfter replacing CPU (TMP47C434) and crystal 1770 (4.0MHz) both control worked intermittently. Replacing transistor 7674 (BC548) solved the problem(Mladen - Visegrad)
Amstrad Video Model: DD8901 (47014601 Chassis)Deck stops after a couple of secsSuspect the reel sensor (Pt no. 250827)(Anonymous)
Toshiba TV Model: 2577BWhite horizontal line (Frame collapse)Dry joint on TA8427K, Frame IC(Anonymous)
Beko TV (PT92 Chassis)High voltage for 5 secs. then goes into protection modeReplace RV38 (2R2) and DD07 (BY228). Check CD22 (470nF) if o/c(Anonymous)
Beko TV (PT92 Chassis)E/W failureReplace CD22 (470nF) and TV06 (BD680)(Anonymous)
Jvc Video Model: HRJ610DeadTransistor Q31 in PSU leaky(K. Tait)
Panasonic TV Model: TX-32PK3Reverting to standby at switch onReplace C454 (22nF surface mounted component). It is also worth examining the line output and power supply areas for poorly soldered joints(David Roberts)
Saba TV Model: 615 (TX92F Chassis)At startup, synchronisation (vertical as well as horizontal) is very weak, after max. 15 minutes everything is ok. Sometimes there is no pictureFirst check all capacitors in the power supply. The real problem was spotted in the IF-area, the shielded space near the tuner: replace all capacitors there, especially the 2.2uF/100 volt type. I replaced it with a 3.3uF/100 volt type with excellent results!(Anonymous)
Philips TV (GR1AX Chassis)TV will not start, seems deadFirst measure the 100 volt rail, if it is missing, then desolder the field output transformer, then recheck the 100 volt again, if it is now present, replace the transformer : the type = 37622 replacement = fat 30057 (Konig). After that everything was ok!(Anonymous)
Hitachi TV Model: C28W410SN (A7 Chassis)The set reverts to standby intermittentlySet HT control had invisible dry joints(Anonymous)
Toshiba TV Model: 215R8NSevere vertical distortion- `egghead` symptomsReplaced c317 in vertical cct (2.2uf, 50v) substituted 4.7uF. Must be 105ºtype!!(Anonymous)
Jrc TV Model: CTV2090 (Nokia Graetz Chassis)Dead set, line fuse openReplaced shorted chopper transistor (S2000AF), replaced bulging/defective caps C507 (2.2uF, 160v), C707 (4.7uF 160v), C752 (10uF, 160v) and C759 (100uF, 50v). All with 105 degree types . Plus line fuse (2.5amps)(Ben)
Telefunken TV(TX92 Chassis)Initial rustle of high voltage then nothing, goes to standby, same with remote or front panel controlsR12 burnt out (0.22ohms), replacing this plus the IC01 vertical IC (TDA8177) got set working. NB: also check D01 for shorts(Ben)
Toshiba TV Model: 219T9BIntermittent field collapse after a few hoursReplace field output chip IC303 (AN5515)(Clive - Swansea College)
Hitachi TV Model: C28W410SNSound crackles and whistles a short time after switch-on. Gets worse as set warms upSolder all links and components that have unpainted copper areas around component legs on upper side of main board near to the audio processing I.C. The same applies to the components near the microprocessor(Anonymous)
Toshiba TV Model: 145R7BDeadD808 s/c due to high HT caused by faulty switch mode ic (STR50020)(Thunderdunc)
Philips TV (GR1AX Chassis)No tuningCheck R3703 for o/c and R3702. Also in CTT-H AA chassis, then R3602(Hanske)
Philips TV Model: 37TA1070 (CTT-H AA Chassis)No tuning voltage on tuner. Goes for: Philips and Magnavox versions. Also the Radiotone TV386VT-SCART which is the sameResistor 3602 (8Kohm) broken. It is in the 95Volts line providing 33V for tuning circuit. This chassis uses the same processor as the GR1-AX which also might have the same problem. In that case resistor 3702 is to blame(Hanske)
Philips TV (CP110 Chassis)Operating fine (good picture, sound and control) but sometimes sharp sounds coming from the set (not via audio), sounding like the LOPT but more loud, sharp and variable (15 Khz)The long coil next to the LOPT was resonating/generating sound (not the LOPT itself), solved by cleaning the top and putting a bubble of silicone kit on it, and after temporarily removing the coil from the pcb fixating a ty-wrap strongly around the bottom increasing the magnet-ferrite contact-pressure and stiffness of plastic support construction(Bartronics)
Philips TV (L6.2 Chassis)No sound, no picture and the power supply makes a loud and low tone chirping noiseReplace shorted Capacitor 2912 (2n2, 2kV) on the deflection module. Note that 2912 is hard to find. It should be blue. If it's brown it's bust(Anonymous)
Philips TV Model: 27CE4599-33R (2B Chassis)Smearing out of one or several colors, best seen in txt-mode, my 27CE4599/30R smeared out in red and green, not in blue, fully exchanging the drivers (input and output complete, otherwise the RGB driver will blank the crt) moved the fault to the other colorReplace the 180K feedback resistors in the amplifiers with normal 1/4W metal film instead of 1/8W, they can become open circuited (in mine both green and red were faulty in this way). Change all 3 and not just the defective ones, replace also all the paralleled 75K resistors per color (fe by 47K+27K) to prevent bright color raster (they can also become open circuit)(Bartronics)
Panasonic Video Model: NV-HD100Display dead rest of functions okChange transistor Q1701 on Timer operation board(Anonymous)
Watson TV Model: FA3629-B (11AK19-E3 Chassis)No soundR829 (4.7 ohm) o/c(Anonymous)
Fidelity TV Model: CTV3221DeadCheck all high value resistors in primary of the p.s.u. If the fuse is blown, expect to replace I1, Q1 and R1 as well, Probably best to do all three and check the rectifier diodes(Anonymous)
Sony TV Model: KV2032Keeps changing channelCheck voltage on D12 if below 4.8V then change(Anonymous)
Philips TV Model: 27CE4599-33R (2B Chassis)Red raster and red flyback linesOne of the paralelled 75 kohm resistors of red was open, replaced with 47K in series with 27K and fault gone (fault seeking in RGB output difficult due to intelligent auto calibrating-cutoff driver with picture mute TDA4580)(Bartronics)
Panasonic TV (Z8 Chassis)Procedure to enter the service menuSet tv on channel 99 position, lower sharpness to minimum setting, press mute on the handset while at the same time pressing V on the front of the tv, navigate through the menu using the channel up/down buttons, alter values using the volume +/- buttons(Josh)
Samsung Video Model: SV-2303 (SV633 Chassis)Intermittent functionsCheck for dry joints on mode switch and clean off any grease inside the switch(Vincenzo)
Telefunken TV (TX92F Chassis)Keeps on burning the surge resistor 280ohm 5W in series with the chopper transformerReplace the chopper transfomer it has a short either on the primary or secondary side(Prince)
Philips TV Model: 29PT785C (G88 Chassis)The set goes into protection and tries to restart. The tube shows no horizontal linesAfter disconnecting the horizontal plug the +148V and CRT high voltage remained stable. The small pcb on the tube (scan coils with 5 or 6 pins) was dry jointed at copperside(Anonymous)
Sharp TV Model: DV3760HWill not work, standby (red) LED flashingC604 in the 12V line is bad(Tomislav)
Philips TV (L6.1AA Chassis)Sound goes off and no remote control functions when heatedT7505 in +5V supply, replace 482213041344(Anonymous)
Thomson TV Model: 28WS23E (ICC17 Chassis)At switch on set starts-up with lots of sparks inside CRT socket, then switches to standbyReplace FBT - HR 8317. There is a repair kit available from Thompson for this chassis, which includes a new loptx, tuning caps and a couple of coils. There are also some surface mount resistor value changes. It's Pt. no: 35175720(Andy Doswell)
Panasonic TV Model: TX33AK10 (EURO 5 Chassis)Strange picture / bleary / movement blurr etc etcThis problem was caused by eeprom corruption, once the eeprom was reset the fault was cured (note that after a reset reinstallation i.e. tuning will be required)(Josh)
Thomson TV (TX807 Chassis)EHT at switch on then goes deadFrame i.c. s/c (TDA8177)(Bob.g)
Orion TV Model: 5190DKNo secondary suppliesCheck / replace C418 (100uF, 25v), C489 (100uF, 40v), C425 (1uF, 400v), posistor PTC401, R422 (5.6ohms, 1w) and the chopper transformer(Anonymous)
Goldstar TV-Vid Combi Model: KY14V30Squeeking sound from chopper transformerShorted voltage regulator, zener diode or h-out(Rodgestar)
Samsung TV Model: TXB1940Red led blinks on / off, TV does not turn via power button and/or remote but after 20 minutes or so it turns on and works fineReplace R902, R901, R905, R903, R900A, Q902, and possibly the two (one small and one large) capacitors in the section labeled as the power supply. The board will be black under the components that are bad. Q902 is an NPN transistor and is hard to find.(Eliot)
Sony TV Model: KV28WS2UOSD volume bar present continuously. No functions availableFront panel tactile switches leaky. Replace same(Pete Sadecki)
Decca TV Model: D14TT92Dead set, with 300v across smoothing (takes a very long time to discharge, watch out!)Check RP06 (3.9M ohm) for O/C, the one I had had nothing else gone(Anonymous)
Firstline TV Model: 1433GRNo picture, no OSDZener diode D219 (12V) shorted. Check capacitors C608, C606, C617, C619, C411 and resistor R256 (39 ohm, 1W). Unreg. voltage to R256 should be 16-17V with no change when warm(Jeroni Paul)
Philips TV Model: 28ML8805-16B (FL1.6AA Chassis)DeadFuse open (3.15A), transistor 7216 (ON4827 = BUT12AF) shorted and solder joint of SMD resistor 3305 (11K) cracked (located on PS control board)(Jeroni Paul)
Philips TV Model: 28ML8805-16B (FL1.6AA Chassis)Some front panel indicators are darkLEDs are tired(Jeroni Paul)
Philips TV Model: 28ML8805-16B (FL1.6AA Chassis)Clips picture at bottom when warmVertical deflection IC defective 7450 (TDA3654Q)(Jeroni Paul)
Rediffusion TV (Mk 4 Chassis)Intermittent loss of lower frequency channels ie Ch:36, higher channels okDry joints in UHF tuner, resolder the PCB to casing earth connections inside tuner(Anonymous)
Rediffusion TV (Mk 4 Chassis)No sound or picture (MK4A) with channel display showing "E2"Check for dry joints or broken print around SMPS transformer connections(Anonymous)
Toshiba TV Model: 210T6BZDistorted sound / bangingVoltage at C832 over 25V! Replace Q809, C866, C869, C864 and resolder dry joints in PSU(Paul Willis tv & video repairs)
Mitsubishi TV Model: BD28S (11AK19 Chassis)Narrow E/W PicC630 o/c(Anonymous)
Finlandia TV Model: C/D 66KZ6/FNo power mains fuse intactCheck Replace C706 10uF 350v Cap In Psu (o/c) also check / replace T511 S2000AF H.out Transistor(Clive - Swansea college)
Panasonic Video Model: NVFS90EGPower supply problem, high frequency sound only !Check / replace C9 (1uF, 400V)(K. bombeeck)
Grundig Video Model: VS920No remote control operation or modulator outputUnlock the video with code 4934 + OK. Check if you have the remote control set on video 1. When you have the RP 95 remote you can set the remote to video 1 with code 8527 + OK(Anonymous)
Panasonic Video Model: NVHD660B (K DECK Chassis)When inserting tape, tape goes in, get a motor whirring noise, and tape ejects again with an "F02" or "F04" error. Closer examination shows that tape seating correctly, but tape not being fed out to the headCause was the motor powering the main mechanical feed/load and eject gear, underside of main front right of central chasis. Small plastic part on motor spindle under gear had split, so slipping. Secured part and gear to spindle with super glue! OK now!(Ian Harrison)
Bush TV (11AK19 Chassis)Slightly excessive width and no 4:3 reductionThe BUK444 had shorted but the main fault was L604(Gordon)
Panasonic Video (K DECK Chassis)No eject, code `F06`Check the condition of the load motor pulley. In my case the sleeve on the motorshaft was cracked. fixed it by roughning the shaft with emery paper, degreasing the sleeve and securing it to the shaft with superglue. Keep glue away from bearing: eureka!(Pete Thomas )
Hitachi TV Model: C2886TNProcedure to enter the service modePress & hold the menu key (the installation line should now appear), with the install menu displayed press both the volume up and down buttons for about 8 seconds until the service option is available then follow the on screen directions(Josh)
Samsung TV Model: W124W6VNPicture darkens and lightens continuallyThis was due to a faulty first anode potentiometer, as its part of the l.o.p transformer a new l.o.p.t had to be fitted(J)
Panasonic TV Model: 14B3T (Z375 Chassis)Excessive vertical overscan caused by a poor factory set upEnter service mode and alter V Size:-Select channel 70. Set Sharpness to min. Press the Off Timer button on the remote and at the same time press the DOWN button on the set front panel. UP/DOWN steps thru' menus; +/- alters values; STR stores changes(Steve Larkins)
Schneider TV Model: STV2802Procedure to access service modePress RED and BLUE keys simultaneously on remote conrol, within 5 secs press P- and V+ on tv(A. Young)
Hitachi TV Model: C2846TN / C2546TNField collapse (horizontal white line on screen)R710 dry joints. Same as C2146TN & C2546TN problem solved with thanks to Mike G & Barty. Power off/unplug. Get to circuit board underside with aerial socket up-R710 is near top and right of centre-cluster of 4 joints best resoldered(Andy)
Hitachi TV Model: C2846TNIntermittent partial collapse of picture vertically (picture squashes down temporarily)See Field collapse tip - it will happen so anticipate it and correct at you leisure rather than have the TV fail completely in the middle of you favourite show(Andy)
Hitachi TV Model: C32W511TN (A7 Chassis)Intermitently goes to standbyCheck R959 (as described by Mark C24W511TN) and found no problem there, however I discovered that several connections in the area of R959 had fractured. They appear to be components near/attached to a heat sink. Re-soldering the joins did the trick(J adjare)
Philips TV Model: 28PW8504-12 (MG2.1E Chassis)Tv seems to be working, but there is no pictue, OSD is present.TDA9330 is defective(Flipmode)
Philips TV-Vid Combi Model: 21PV688/05/39 (Evolution AA Chassis)Dead, Mains fuse blastedD6313 (1N5062) s/c, also capacitor C2328 (470pF, 1Kv) s/c(Tim)
Sony TV (AE2 Chassis)Sound low & distorted when hotCheck -22v & +22v on plug PL505, if either incorrect check R627 27~ (goes high in value)(Ken Porter)
Sharp Video Model: VCA111Poor picture Faulty C329 (4.7uF)(Vlado - Macedonia)
Philips TV (2BS Chassis)No E-W CorrectionReplace TR7467(Vlado - Macedonia)
Sharp TV Model: (21B Chassis)No UHF BandCheck Q212(Vlado - Macedonia)
Goldstar TV (PC12A Chassis)DeadReplace D401(Vlado - Macedonia)
Goodmans TV Model: GTV69WZDTSet deadReplace switch mode i.c IC106 (MC44608P40(Fairfield Televisions)
Samsung TV-Vid Combi Model: TVP-3350IS (SCV11C Chassis)No RF audio - ok on VCR tape playback and via SCART inputHairline cracks in PCB tracks on motherboard directly at the back of the tuner(Anonymous)
Samsung TV-Vid Combi Model: TVP-3350IS (SVC11C Chassis)Set stuck in standby modeCheck for failure of Q801 (STRS6707)(Anonymous)
Vestel TV Model: (11AK30 Chassis)Stuck in stand-byX501 4MHz Xtal(Anonymous)
Hitachi TV Model: C2867TNThe set was going off intermittentlyResoldering all three pins on regulator IC952 cured the problem(Anonymous)
Matsui TV Model: TVR180No sound on TV, ok in play and on recordingsChange address data 0D from 00 TO B3. This worked for me as well - removed chip and changed location 10D as above (I guess there may be a way to do it without tearing unit apart but didn't have any manuals!)(Anonymous)
Beko TV Model: 12220TDead psuC110 defective in psu (47uF, 25V) - Resevoir cap for ic(Anonymous)
Bush TV Model: 2866NTX/SM2Intermittently the stereo symbol would appear on screen, sometimes it would change to dual II and back again, while this was happening the sound would crackle and sometimes disappeared all togetherThe problem was cured by re-soldering over the whole NICAM panel. Note: The Bush 2866NTX without the SM2 in the model is a different chassis(Sparky)
Hitachi TV Model: C2519T (G8Q Chassis)This set was dead apart from a hissing sound from the speaker, no standby led5 volt regulator on front panel had 13 volt input but only 1 volt output, Replacement cured the fault(Brian odonnell)
Panasonic Monitor Model: E110 (NA Chassis)Image and text are to large on screenReplaced flyback(Sjf)
Panasonic TV Model: TX32PF10 (EURO 4 Chassis)Over a short period of time the convergence of the picture gets steadily worse. Eventually it is so bad that even the teletext shows double or triple images when they are made up of a combination of colours. Pure colours: Red, Green or Blue are OK.The Tube must be replaced. Apparantly this is a known problem to Panasonic, especially on 32" tubes. It has been known to happen both in and out of warranty. So far Panasonic when contacted have also paid for repairs when out of warranty (2 years old)(Anonymous)
Sony TV Model: KV27EXR25No power, no raster, relay comes onFound horizontal trans short(Anonymous)
Panasonic TV Model: TC-21 S3R (Z7 Chassis)Picture fades away few seconds after start-up till no picture. Sometimes no picture at all. Sometimes picture OK for longer. Sound unaffected.Faulty joints on CRT pcb. Cracked solder joints at tube socket connections on CRT circuit board. Caused variable supply to CRT heaters. Resolder all socket pins to pcb.(Col)
Panasonic TV (EURO 4 Chassis)Int going into standbyReplace C454 a 22nF smd, located near the Frame o/p ic.(Paul Bradshaw)
Philips TV Model: 28DC2670/21R (D16 Chassis)HOT is s/c, after replacement tv functions are erratic, snow on screen / goes into standby / black screenChange the VCU 2136 (It is possible to replace with a VCU 2133)(Daniel)
Vestel TV (11AK19P3 Chassis)Intermittent no or variable luminance similar to beam limiting faultThe 11AK19P3 chassis is used mainly in Black Diamond sets. These have a sub panel next to the video processor. The fault is caused by IC100 a TDA9181P which is difficult to obtain most parts companies require a special order. Had this fault 3 times(Jg scotland)
Toshiba TV Model: 2550TBSet stuck in standby at switch onField output ic TA8427K faulty, also change 220uf cap(Fairfield televisions)
Sanyo Video Model: VHR766Completely dead, no displayReg IC511 faulty (L5431). Replaced solved all problems(Stuart - SOS tv & video repairs)
Nordmende TV Model: Futura 72 IMC (F17 Chassis)Field reduced at the bottom of the screen with about one inch of undefined lines instead of a pictureOscilloscope checks at the rail supply U5 showed a high ripple content, replacement of the smoothing capacitor CL52 (1000uF, 40V) cured the trouble(Angovisao)
Various Video Model: VariousNo capstan rotation / flatpack motorsHad this a lot, electrolytic cap on pcb leaks, replace cap but clean off area and check for o/c print eaten away by electrolyte from the little devil ...(Kevin j.)
Mitsubishi TV Model: CT29B2STXSevere NS bowing Check for leakage of the small electrolytic capacitors on the vertical correction pcb at the right of the main pcb, check C4014 in particular and if found to be faulty also check transistor Q4009 (2SA950) which may also have been damaged(Josh)
Rca TV (CTC177AF3 Chassis)Overloaded picture, AGC not adjustableFound IC7301 (CXA1594) bad. Replace ic and align tuner parameters(Anonymous)
Hitachi TV Model: C32WD2TN2 (A7 Chassis)Volume goes to maximum when volume plus or minus selectedReplace R039 (10k) pull up resistor for micro switches, gone slightly low value(Karl)
Sony TV Model: KV-X2183E (BE3B Chassis)Not working, Stand-by indicator led flashing 6 times, Power supply okThe tuner has loose connections, especially the ground points and the two SMD Ic´s(Rui Loureiro - Portugal)
Goldstar TV Model: CIT2180Frame foldover, line across middle of screenC301 (47uF, 160v)(Ian mills)
Teac TV Model: CTM203 (PC04A Chassis)No PowerCheck / Replace power switch, it read zero ohms at contacts - however carbon build-up stops p.s.u. from starting(B-1)
Hitachi TV Model: CPT1446R (NP84CQ Chassis)H.T fluctuations, picture becomes half white and half black. H.T varies from about 80V to 110VReplace ZD902. It's a 10V zener diode(Sparky)
Philips TV Model: 25PT452A/11 (GR2.2 Chassis)Picture wide and tripingChange D6591 s/c (1N4148)(Manuel)
Vestel TV (11AK18 Chassis)Procedure to enter service modeGo to main menu,then enter 1675(Manuel)
Thomson TV (ICC20 Chassis)Set tries to start three times, HV comes up for a short moment. After this LED is blinking first four times, then seven timesChange vertical chip TDA8177F and the four diodes in front of it(Kalle - Sweden)
Toshiba Video Model: V880MSDeadCheck C822, Z801, Z802 (CPN10)(Vlado - Macedonia)
Daewoo TV (CP785 Chassis)No pictureReplace IC (TDA8385J)(Vlado - Macedonia)
Sharp TV (5BSA Chassis)Small pictureReplace D716 (27V) and D717 (75V)(Vlado - Macedonia)
Thomson TV Model: 28WS23E (ICC17 Chassis)Set trips off int. Set tries to come on then goes back to standbyDry joints on line o/p transformer(Ockbrook tv and video)
Saba TV (ICC8 Chassis)Poor picture (colors flashing) looks like one colour missingChange RT44 (39K) beside the video amplifier(Anonymous)
Rca TV Model: F35670MB (CTC187CN3 Chassis)Common problem bulletin:Resolder ALL ground connections in and around, and under the tuner shields, solves most problems, prevents big problems as in dead EEPROM or CPU(Anonymous)
Rca TV Model: F35670MB (CTC187CN3 Chassis)Dead. F4001 (5 amp) fuse openCheck U4101 (STK730-150) Part no. 223948, Check CR4106 for short, Check Q4401 for short, replace all shorted or open parts, Check the two main filter caps on the secondary off of SMPS, replace vented caps, Replace 10uf 200v cap off of reg.(Anonymous)
Goldstar TV Model: (MC41 Chassis)No powerReplace Q805 (2SC3852A)(Vlado - Macedonia)
Lg TV Model: CZ-20E60 (11.1 Chassis)Stuck in standby with no line driveR410 o/c(Anonymous)
Grundig TV (CUC5350 Chassis)Goes to standby after a short timeReplace C631 (1uF, 63v)(Anonymous)
Sanyo Video Model: VHR287ECuts out on record and clock blinks out other wise OKReplace PR512 JS130 (Light brown 1000 on side near front of PSU next to Q5103(Allan)
Ferguson TV Model: T49F (TX91 Chassis)Sound at maximum and unadjustableCheck / replace surface mounted transistor TV02 (BC858) on the print side of the pcb(Josh)
Philips TV-Vid Combi Model: 14PV505/07Dead set, no red standby light on the front panelCheck D639, on the secondary of the chopper transformer, it supplies the 8Volt line, and goes s/c. Fuses remain in tact(R. Higton.)
Samsung TV Model: CB5012Z (P58SC Chassis)Stuck in SECAM modeChange resistor R514 (100K)(G. Camilleri)
Goldstar Video Model: T163INo powerCheck +6v rail in PSU. If low replace capacitor CP19 (1000uF, 10v)(Rich)
Philips Video Model: VR722 (VR722/02/05/08/13)Dead after power short lossDrained capacitor C2114 (47µF,16 Volt) Philips part number 4822 124 80231(Bj)
Ferguson TV (TX92F chassis)Set tripping with led flashing on / offMost likely to be RL08 a 10K smd resistor connected to pin 8 of the LOPT. In every case i know of the LOPT also needed replacement (HR7360)(John)
Bush TV (11AK19 Chassis)Power supply tripping in both on and standby modesC829 (47uF, 160v) HT smoothing cap(Malcolm French)
Sanyo TV Model: AVM1902 (G4S-19020 Chassis)Intermittent horizontal deflectionResoldered the pins of horizontal deflection transformer(Anonymous)
Bush TV Model: 1433 (Vestel 11AK20SE-2 Chassis)DeadCheck / replace R809 (0.47ohms). Could be the first indication of the chopper transforme going faulty(Anonymous)
Panasonic TV Model: TX25W1EScreen turns white intermittentlyBloqueo de la fuente se va el diodo R2KL(Anonymous)
Bush TV Model: 2014 (11AK19 Chassis)Power supply tripping in both on and standby modesC829 (47uF, 160v) HT smoothing cap(Malcolm French)
Orion Video Model: VP-290RCDrum running too fastThe OEC9011 chip may be faulty and the pcb beneath it may be charred (expensive chip!)(Anonymous)
Sharp TV Model: 21HS-50H (GA-1E Chassis)Trips 1 second after switch onR613 o/c (located near scart socket)(Sean)
Grundig TV Model: M82-795 (CUC7880 Chassis)Dead, 800mA fuse blownCheck for dry joints on the chopper transformer also check D663, D664, D666, C653 (4.7nF) and C667 (2.2uF)(Anonymous)
Sony TV (FE-1 Chassis)After about 30 minutes the set goes to standby, the LED flashes and TV starts again. After 1 Minute the TV Displays : Antenna connection failed!Change IC101 of IF on A-Board. Order Nr. 875946647(Daniele Marseglia)
Matsui TV Model: 25M2 (Sanyo? Chassis)Set dead, no PSU output. 320V supply okReplace start up resistors R620/R624 both 120K. Then set worked ok(A. Gould)
Alba TV Model: CTV4859 (AK19 Chassis)When switched on from standby, green light flashes, no EHTD605 (BA157)(Shanks)
Toshiba TV Model: 2857DBInt. frame collapseDry joints on regulator Q420, not too easy to find as it is not close to power supply or frame stage, it is the supply to the frame generetor IC(Shanks)
Samsung TV Model: CB5012Z (P58SC Chassis)No colour, stuck on secam onlyCheck R514 (100K) open circuit or very high value(Godwin Camilleri - Malta)
Vestel TV Model: 3710 (11AK20 Chassis)Switches to standby when hotCheck / replace C601 (100nF) and C605 (3.3uF)(Anonymous)
Panasonic TV Model: TX28PK2Internal 3.15A mains fuse blown with no obvious causeThe official Panasonic modification is to uprate the mains fuse from 3.15A to 5A(Josh)
Panasonic TV Model: TX33AK10 (EURO 5 Chassis)Procedure to reset eepromPress volume minus (-) on the set while also pressing the remote controls status button (this button has a + sign by it and is located above the red text button), this should now have initiated the reset routine and displayed data should be seen(Josh)
Jvc Video Model: HRJ265Capstan motor intermittantly stopping and startingReplaced motor(Alternative electrics)
Matsui TV Model: 2109NS / 2107NS Mk2Standby LED blinks off when Standby pressed on remote control. Supplies do not come up and set does not run.Value of R256 (4K7 SMT) is marginal to turn Q504 on fast enough for micro to see supplies come up. Replaced R256 with 1K (0805 SMT) problem solved(Kevin - Plymouth)
Toshiba TV Model: CF2666R (TAC9102 Chassis)Screen is too tall, with vary faint retrace lines showingFound that Capacitor C305 (50V, 2.2uF) was dry, C342 (50V, 1uF) was also dry too. Capacitors are near vertical IC 301(Mario)
Vestel TV (11AK19 Chassis)Bright picture with retrace linesResolder pin 4 and 5 on memory IC502. If the set now starts, change memory(Kalle Birgersson, Sweden)
Rca TV Model: VJM2022T (CTC 121D Chassis)Will not shut offSCR 100 leaky(Anonymous)
Sony TV Model: KVA2942ULED A flashes once, LED B flashes 13 times.Bad solder joints on field IC1501 on back edge of main PCB(Kevin - Plymouth)
Sharp Video Model: VARIOUSEl mecanismo de transporte de la cinta pierde velocidad.Rodillo del cabrestante or banda del cabrestante(Santos)
Magnavox TV Model: T979No picture or sound, trips breakerCapacitor C16 (0.1uF)(Santos Trejo)
Magnavox TV Model: T946Loses vertical and horizontal syncTransistor Q8 shorted(Santos Trejo)
Seleco TV Model: 33SS570 (PC040 Chassis)TV stops working after 60-90 minutesCheck for poor joints in the power supply also change the (1uF, 160V) and the (100uF, 63v) capacitors (2 off)(Anonymous)
Panasonic TV Model: 14B3T (Z375. Chassis)At switch on the set pulsates 6 times before the H.T settles at 110V and the set powers onReplace R804 (0.56 ohms). It's located in the primary of the power supply and is used for current sensing. Also note this is actually a Daewoo CP375S chassis(Sparky)
Jvc TV Model: C14ET1EK (ONWA Chassis)Picture height is reduced to 2 inchesReplace C418. It's the coupling capacitor from the frame circuit to the scanning coils. It's value is 1000uF, 25V(Sparky)
Toshiba TV Model: 2863DB (C6SR Chassis)To remove protection to assist fault findingRemove D471. It's a thyristor and is located next to the chopper transformer secondary side(Sparky)
Panasonic TV Model: TX24DX1 (EURO 4 Chassis)Intermittent dead with red standby light on, but won't switch back on, comes back on it's own, won't respond to remote or local controlsLow 5v standby supply due to diode D869 faulty, check by replacement
Matsui TV Model: 14V1RDead, fuse blown (blackened)Replace IC6380 (UC3842AN) and T665 (MJF18004)(Anonymous)
Rca Video Model: VariousAfter presing play picture appears but looks like in pause modeClean and lubricate the capstan flywheel(Santos Trejo)
Jvc TV Model: AV-S250EKTSet dead. Faint whistling noise on switch on. No standby LEDReplaced STR1006, no dfference. Line O/P Transistor OK. 36 Volt Zener, D614 found to be short. This zener is on the secondary of Xformer, T601. This short causes the 12 V start up supply cct, which includes STR1006 not to come on(Ram)
Sharp TV Model: 51DT-25HTV does not turn on, no standby lightR704 was o/c(Lee B)
Matsui TV-Vid Combi Model: 185When blocked out from TV by pin code being incorrectly enteredIf you ring up Dixons/Currys they will tell you to bring it in where it will have to be reset, requiring you to pay a charge of £15+Leave overnight or for 12+ hours and it will after a time delay unlock. I wonder why they don't tell you this - moneygrabbing f******!!!(Thomas Swift)
Philips TV Model: 51TB1222 (L6.1 Chassis)Sifflement de l alimentation usustem a9 v au lieu de 100vC2423 (102k,1kv capa bleue) et tht(Anonymous)
Philips TV Model: 28PW6322-05 (MD1.2E AA Chassis)No picture and no sound and when switching on, the high voltage transformer makes a soundThe capacitor in pos. 2420 was bad (it produced smoke after some time)(Kjell)
Mitsubishi TV Model: BD28WS (11AK19 Chassis)At switch on front l.e.d turns green, blinks 3 times then set returns to standby. All h.t voltages rise, then fall away as set goes into standbyDry joints IC807(Lance)
Grundig TV Model: T55-731 (CUC7303 / FET TYPE Chassis)Dead bridge and chopper transistor s/cIf no D663 fitted this is version 2 has fet and UC3843. Failure of p.s components caused by C669 dry jointed. Check/change FET (BUZ90), D667 (BA157), R661 (4.7k) (not 220r version 1), R666 and R667 (56r 1w), R663 (10r) and the UC3843. All values for 20"(Andy Leak)
Ferguson TV (ICC8 Chassis)Line transistor TL19 was short circuit. After replacement the transistor shorts againChange capacitor CL21(Anonymous)
Sharp TV Model: UnknownFault like soft crtI had 3 of these sets which all looked like soft crt, i changed the crt base from a known good set and all was ok i do not know the fault on the crt base yet but it was as good as new(John)
Sharp TV Model: DV5131H (S3B Chassis)Intermittent failure of Q603Replace C601 (low in value)(Anonymous)
Sharp TV Model: 66FW53H (FW Chassis)Dead only neon litCheck D735 across 150v rail, if s/c you will need to replace the opto and the D735. Check Q601 line o/p transistor as this may also be leaky(Anonymous)
Sony TV Model: KX27PSIAlmost totally dead. No video or audio whatsoever. Only the clicking sound of two power relays when the set is turned on, and conversely at power down. The green/red lights on the front panel do appear. Repeated failure every 2-3 years. Why ?An insight into what TV engineers did, after speaking to Sony UK: (a) 0.47K resistor replaces L656 in line to Q651 B. (b) 0.33 ohm resistor added between L650 and Q651 E. A resistor also replaces L657. Still lasted only 2 years. Any better ideas ?(George)
Vestel TV (11AK19 Chassis)At switch on front l.e.d turns green, blinks 3 times then set returns to standby. All h.t voltages rise, then fall away as set goes into standby Dry joints IC807(Lance)
Panasonic TV Model: TX-14B4T (Z185 Chassis)This set had a bright picture, no off air video and no video via scartThe cure, thanks to Panasonic technical was to replace the memory chip I702 (X24C)(Sparky)
Grundig TV (CUC6310 Chassis)No east-westCheck R569, TDA8145, D566(Louis)
Grundig TV Model: ST82-774 TOP/EURONot starting, power supply working perfectly display presentReplaced the horizontal deflection power driver ic TDA8140(Rui Loureiro - Portugal)
Thomson TV Model: (ICC17 Chassis)Standby led fault codes and meanings list / standby led flashes then pausesCode meanings are as follows: 10 = child lock mode, 11 = timer mode, 14 = there is no response from Iv01, 15 = there is no response from IS40, 20 = bus access prohibited by software, 21 = bus data line held low, 23 = bus clock line held low, 25 = switched 5v supply missing, 26 = crt is not warming in the allotted time, 27 = deflection failure more than three times, 28 = IF01 guard voltage (pin 8) exceeded, 34 = no response from the nvm chip IR03, 36 = incorrect address passed to bus handler, 37 = unexpected level on NMI line (power fail), 41 = bus data line not recoverable(Anonymous)
Sony TV Model: (FE-1 Chassis)No power although relay operates (main p.s.u inoperative)Check IC606 (STRF6654) for failure, also check resistors R659 (0.33ohms,3w), R660 (0.39ohms,3w), fusible resistor R603 (0.1ohms,0.5w) and capacitor C625 (100uF,25v)(Josh)
Sony TV Model: (FE-1 Chassis)No teltext just P100This problem was caused by Q405 (2SC2412K) being s/c(Josh)
Sanyo TV Model: CE32WP2 (WB2-A32 Chassis)Dead set, standby L.E.D litCheck capacitor C634 (2n2, 2KV) in power supply for o/c or s/c(Alternative electrics)
Sanyo TV Model: C25EG95B (EC3-A25 Chassis)Dead set (no start up)Replace R321 (120K)(Adrian Parry)
Philips TV Model: 28PT4521/16 (MD1.1E Chassis)Fails to stop at station when tuningR3568 (100Kohm)at side of L10 connector(Jorge)
Grundig TV Model: M70-495 (CUC-3800 Chassis)Dead setI replaced the BU546 transistor in the power supply and resoldered some paths on the PCB. An intermittent soldering path to the collector of the transistor was the reason for the destroyed BU546(Tom Bevers)
Samsung TV Model: TXG2547 (K51A Chassis)No power, Voltage not changing on pin 18 IC901 (SZM-368ET2)Check dz906 (short), key-in 1 pin 9 of ic901(Colin)
Philips TV Model: 2B (2B Chassis)Very low HT voltageThe HT was so low that a 60W lamp connected across the HT line as a dummy load wouldn't even slightly glow. The problem was caused by a wrongly fitted PTC, it was a 96012 type, when the right PTC 96012 was fitted the problem was solved(Angovisao)
Sony TV Model: KV2184Main fuse blastedReplace the STR50115, also replace the mains electrolytic capacitor(Seles)
Grundig TV Model: (CUC2080 Chassis)After replacment of FBT, the set starts and reverts to standby mode immediately. If the Crt heater is fed by an external transformer (i.e. 6 V. a/c), the screen will show a very weak light, except in the corners13V. was present on pin 11 of V. output IC TDA8350Q during the brief moment when the set tried to start. The TDA8350Q was found to be defective and was replaced. Don't forget to check +A voltage after replacing the FBT(Jose Carlos Pinto - Oporto)
Hitachi TV Model: C1709TDead (H.T high and tripping)Replace ZD903 and R909 (39K) also check ZD901 (2.7v) for s/c(Anonymous)
Panasonic Video Model: NV-H75DeadCheck C1003 (1uF, 100v) then the STRD1806 and D1004 for s/c(Anonymous)
Philips TV Model: 28ML8805-16B (FL1.6AA Chassis)Disturbed sound in left channelCheck IC7009 (LM833) on LSP(Kjell Mathisen)
Philips TV Model: 28ML8805-16B (FL1.6AA Chassis)Ticking noise and line in pictureTransistor 7381 (BC848C) defective when hot(Kjell Mathisen)
Mitsubishi TV Model: CT2227BMIntermittent no sound or pictureDesolder, then resolder Line Driver Transformer connections(Steve Johns)
Philips TV Model: 28ML8805-16B (FL1.6AA Chassis)Power supply faults. BUX85F in micro SOPS defectiveChange the value of C2260 to 4n7F, replace 7270 with transistor BD825(Kjell Mathisen)
Ferguson TV Model: 28DG17UG (TX807CS Chassis)To remove the protection (to assist with fault finding)Remove TL061. It's a surface mounted transistor located near the line o/p transformer(Sparky)
Ferguson TV Model: 28DG17UG (TX807 CS Chassis)No start up, l.e.d flashes orange 7 times then stops. All rails on secondary of chopper seem okYou will probably find the line o/p transformer is at fault(Sparky)
Sony TV Model: KVS3432U (AE2 Chassis)Front led flashing 13 times, HT at first came on at 139V then went to 75V going off etc (shuting back down in protection mode)Found R854 open circuit on -15 volt line (off line output transformer)(Errol Rankin)
Finlux TV Model: 71G2 ID:54361330 (Stereo Plus Chassis)Bottom half of the screen is black. Very distorted picture in top half. Volume weak. The programming menu, and the "Extra" menu, has disappeared. In "Service mode" (Mute, M and TV buttons in sequence), all settings are set to the max. value (63)The existing IC "SPL 40R01" in location NF10, and the connected EEPROM in location NF80, was replaced with replacement IC "SPL 51R02" and an empty EEPROM. It comes in a kit, which also includes installation instructions and a user manual(H. Rosenberg)
Jvc Video Model: HRD5603/4 of the playback picture is snow may look like duff heads!Check 3.3uF,50v capacitor on lower drum motor pcb, this is an smd type but can be replaced with standard cap mounted on its side and tilted downwards slightly to clear mech chassis(K Ferrier)
Panasonic Video Model: NVJ35Noisy capstanC22 in Power supply fixed it for me(Anonymous)
Various Remote ControlsHandheld remote problems, quick check which everybody might not knowSwitch broadcast radio to medium waveband, around mid-band. From about two feet away point remote at radio and press any button. All buttons should cause radio to bleep. Not clever but useful. Any other ideas ?(David Kilmarnock)
Saba TV Model: M3715 (TX805 Chassis)Dead, 1.6A main fuse blownReplace TP10 (S2000A) and DP21 (2V7 zener)(Spiros gr)
Goodmans TV Model: 1430RA (ONWA Chassis)Volume up full, red bargraph but no sound, Picture bargraphs also at full and will not adjustDisconnect pin 1 of MN1220, press vol down then store then resolder pin 1 - only seems to correct problem if resoldered while unit is powered.(Bku)
Mark TV Model: TVD1420TXNo video, grey picture with white lines1ohm resistor on the mainboard next to the connector for the rgb(Jonnykvist)
Jvc TV Model: C14E1EKDead, in standby, HT present at relay RLX401, no 12 volts at C419R425 (5.6ohm) o/c, ZD402 (12 volt zener) s/c and C426 (2200uF, 25volt) faulty(Steve Spriggs)
Hitachi TV Model: C28WS10TNPoor starting, some times comes on then cuts out with LED going outDry joints along centre heatsink where the three ICs are mounted, reflow solder on ICs and then check HT (160 Volts)(Anonymous)
Sony TV Model: KV-25M80 (BG-2 Chassis)Dead5V Supply Transformer Short(Subhash)
Goldstar TV Model: CF28A54L (PC58A Chassis)Lignes horizontaux aut de l'immage après remplacerIC - TDA8350Q, Condo 470uF, 25V(Anonymous)
Sony TV Model: KV28WS2UNo sound, speakers pop out if volume is raised from zero. Audio output from Dolby (A1) board at +5v dc.Lightning damage to this set and connected VCR. Centre/surround amplifier IC shorted blowing IC protector to its negative rail. Both amplifier ICs replaced as a precaution. No damage to Dolby (A1) board(Simon)
Philips TV (L6.2 Chassis)Picture is horizontally narrowed and deformedCapacitor C2913 (390nF, 250V) on the deflector PCB had lost capacity(Patje - Belgium)
Thomson TV Model: 28WR23EG (ICC17 Chassis)AV1, AV2 are fine but AV3 do not work. Picture may be ok but no soundReplace BA7604N, and check CX64 (47pF)(Daniel Simões - Portugal)
Daewoo TV (CP775 Chassis)Dead - faint ticking from PSULOPTx faulty - check Q401 (D18809a4 aka 2SD1880) for s/c and D406 for s/c(Kdf)
Philips Video Model: VR110Power supply trippingDamaged print at one of the pins on primary side of transformer(Mark T)
Sony TV (FE-1 Chassis)Loss of one colour with teletext and on-screen displaysCheck the appropriate 2SC2412K transistor Q007 (green), Q008 (blue) or Q009 (red)(Josh)
Philips TV (GR2.4AA Chassis)Power Supply Protection enabledReplaced zener diode 6561 (BZX79C68)(Angelo)
Sony TV (FE-1 Chassis)Band of interference down left of screen on dark scenesThis was cured by adding a 1000pF, 2kV capacitor (part no. 1-161-731-81) in parallel with D539 in the EW diode modulator circuit(Josh)
Bush TV Model: 3114ATDead, stuck in standbyCheck R502 and R503 these should be 330k directly in front of the STR Transistor(Darryl Nicholls)
Philips TV Model: GR1AX (GR1AX Chassis)Will not start up from coldCheck if 95v line increases to over 100v when TR7628 (BF423) is chilled. If so, replace D6629 (BZX79-C12) and re-check 95v/re-adjust R3625. May also be worthwhile replacing TR7628 and C2629 as a precaution!!(Marty)
Sony TV Model: KV2165MTMain fuse blastedReplace the STR50115(Fky)
Amstrad TV Model: CTV3028NNo tuningR124 (15K) o/c, (33 Volt tuning supply)(Apollo service centre)
Loewe Opta TV Model: Contur T70 (C9000 Chassis)Problems starting-up from standbyMay be a problem in the power section. Replace C622 (100uF) and C631 (100uF)(Valter)
Goodmans TV Model: 1410 (TX805 Chassis)DeadOne of the three series connected 68Kohms resistors was open-circuit. RP44 is rated at only 0.25w. It hides beneath two large green power resistors. The other two 68Kohm resistors are rated at 0.5W. We replaced them all with 1W resistors. Soak tested ok(Ann Reid)
Orion TV (5130-2RC Chassis)Picture was black and white, twisted, sound came and wentIf switched on for a long time the picture improved but was still not OK. Capacitor C210 in the IF section had failed. Replaced and all OK!(Pavel)
Hitachi TV Model: C2864TNPsu in slow trip. 630mA fuse on E/W panel blownTop E/W diode leaky D704 (BY228)(Gees)
Panasonic Video Model: NV370EDisplay shows dew sensor at irregular intervals and different circumstances causing the video to go in standby modeBouncing effect of power switch on timer board. Only one section of this double pole switch is used. Add a 1nF capacitor in parallel to this switch and use the second section as well(Robert)
Sony TV Model: KVM1400Will not power up, red LED blinks twiceReplace ICP fuse in HT line PS801 (N15, 600mA) mounted adjacent to pin 7 of LOPT(Dave)
Panasonic TV Model: 21LITDead set, only red LED is onReplace IC AN5606k(Imran Khan)
Loewe opta TV Model: Profile (E3000 Chassis)White vertical line only displayed on tubeCheck for dry joint or burnt track on Horizontal Yoke PCB socket or main board(Andrew booth)
Thomson TV (TX91 Chassis)PLL will not lock for all frequencies (keeps running during program search), on screen display moving / unstableChanged the tuner and the STV8224 also check transistor at location TV02 is ok(Anonymous)
Hitachi TV Model: C2546TNProdedure to remove `C46TN` from screenPress the 2 VCR buttons together, the menu will appear, then switch to standby mode, turn appliance back on and prompt should have disappeared. When tv is turned on it will ask you to search for a channel, select this and then cancel(Anonymous)
Panasonic Video Model: P03RMK2 (VJDO3D40 Chassis)Int capstan motor stops respondingChanged the IC No. BA6871S(Anonymous)
Akura TV Model: CX35 NicamVertical height oversizeThe eprom was found to be faulty (nvm)(Sjs elec)
Grundig TV Model: P55449 (CUC4401 Chassis)Dead but comes on when warmReplace C633 (100uF) in the p.s.u(Anonymous)
Hitachi TV Model: C2119E (Issue9 Chassis)No sound control, procedure to exit factory preset modeHold 'VOL+ and 'VOL- buttons whilst switching on(John Mclaughlin)
Sharp TV Model: 54DT25SDead with ticking noise from lineReplaced C622, C604 and Q509(A. McGovern)
Sony TV (FE-1 Chassis)Excessive widthThis was due to Q532 (2SK2251-01) being s/c, it is advisable to also check other EW circuit components as a precaution(Josh)
Sharp TV Model: 54DT25SFrame foldoverCheck C713, Q510 and Q505(A. McGovern)
Samsung TV Model: CB7230WTVertical output problems, Vertical output ic fails repeatedly !Fit a new IC, clean old heatsink compound, add fresh compound thinly on the surface. Now disregard all the other modifications previously suggested and ADD a large heat sink on the existing heatsink (screw another one on top)(Trance)
Philips TV (L9.2E Chassis)Fuse 1572 blownDisconnect pin 44 on IC7600, if the fuse stops blowing suspect processor IC7600. It is really expensive, at least in Sweden !(Kalle Birgersson)
Sony TV (FE-1 Chassis)No picture or dark pictureCheck R516 (56Kohms, 0.5w) or R517 (27Kohms, 0.25w) for high resistance or o/c(Josh)
Toshiba Video Model: V730UKNo display, red LED flashingReplace C1SS35 (1000uF, 10V)(Anonymous)
Thompson TV Model 24WK24U (ICC17 Chassis)Set is tripping with flashing from the red standby lightShort the collector of TL71 to earth, if the set comes on you will find the frame chip is blown and ZL11 cp is o/c. If the set still wont come on them the LOPT is suspect(Geoff)
Philips TV Model: 25PT512A-05 (GR2.2 Chassis)Dead set HT 140V okReplace standby Thermistor THY6670(Wayne Haverson)
Sanyo Video Model: VHR-796EDeadPR512 in the PSU was o/c(Paul)
Sony TV Model: KV2020No SoundReplace sound i.c (TBA120U)(Anonymous)
Toshiba TV Model: AVM 2505 (G3V25050 Chassis)Will not come out of standby, no pictureIf at power on voltage on pin 37 of the micro drops low then reverts to 5v suspect memory chip ICA07 (Toshiba 23319016)(Anonymous)
Toshiba Video Model: V705B (V3 CAT 1/2 Chassis)Intermittent deadWhen pin 11 of IP001 (U4614) jumps between 8v and 10v suspect shorted 2SA1020, as the secondary is shorted, leaving the chopper switching between on/off states(Liran Daniel)
Panasonic TV Model: CT-T14REl diodo en paralelo con condensador electrolitico C810 vuela porque este voltaje esta bien alto cerca a 200 voltios debe ser 138vCambiar la R610 de 110k (estaba alterada)(Juan)
Vestel TV (11AK19 Chassis)Screen blanked out with 4 coloured lines two thirds of the way down from the top of pic. Sound OK100 ohm resistor connected to pin 6 of the frame output chip was o/c. The IC is TDA8356. The resistor is R704 and is on top of a small hole in the chassis(Raul Almeida)
Grundig Video Model: VS500VPSAll power is oscillatingSelect 4934 on remote then 0000 key, should then clear(Anonymous)
Panasonic Video Model: NV-HD625Loss of colourFilter BP301 may have poor internal contacts(Anonymous)
Bush TV Model: 2059NTXDead, stand-by light onAll power supply voltages OK. no drive to line output. IC102 faulty (TDA4505E)(Apollo service centre)
Naiko TV Model: N2811W (PE92 Chassis)The display is blue with bad graphics and parameters wrongThe 24C16 (IC02) EPROM was faulty as Bush WS6674, Got from CHS for £4(Roger Scales)
Panasonic TV Model: TC15M1RTries to start, led lights once, and shuts downDisconnect pin 6 of loptx, set should run with frame collapse. Replace frame IC to effect cure(Andy Woods, review tv, Nottingham)
Philips TV Model: 25PT532A/05 (GR2.2 Chassis)Power supply dead, blowing fuseFault was transistor BUT124F (7625) short circuit, replaced Transistor and also changed ic CNR50 (7614) and TDA8385 (7600) this solved the problem(Jon, Wakefield)
Jvc TV Model: AV21F1ENChannel reception lost if tuner socket movedDry joints on IC522, IC521 and IC541 (located in the big heatsink about middle of the main pcb)(Jose Carlos Pinto - Oporto)
Philips TV (CTN-BB Chassis)Dead. F1500 o/c, mosfet s/cMosfet T7525 shorts, due to smoother cap C2505 goes low capacity. IC7514 (TDA4605) must also be replaced(Jose Carlos Pinto - Oporto)
Bush TV (ONWA Chassis)DeadFit a power supply kit from SEME RK215 for a safer and reliable repair(Anonymous)
Philips TV Model: 14PT1352/58 (L6.1AA Chassis)Sound goes off and no remote control functions when heatedThis was found to be due to a faulty micro(Anonymous)
Bush TV Model: 11AK19 (11AK19 Chassis)Lack of width / no ew controlThe east west fet Q603 (BUK444-200A) was short and R629 (2.7ohms fusible) was open, replacing both cured the problem. Addition to above: R629 (27ohms 110deg tube) found open without Q603 or other component failure, problem fixed by replacement R629(Anonymous)
Panasonic Video Model: NVHD100Dead after stormCheck the STRS6545 regulator chip and the mains fuse(Anonymous)
Philips TV Model: 21PT5505/05 (L9.1E Chassis)The fault with this tv was a snowy picture (no channels tuned in) also the permanent 33V supply on pin 9 of the tuner was low at only 1.6VThe first thing i tried was a resistance check between pin 9 and ground. The reading was only 120 Ohms. There's a surface mounted cap right next to pin 9 of the tuner. This was found to be leaky, It's value is 47nF. Also resistor 3442 (3.9K) was o/c(Sparky)
Lg TV Model: CI29H40 (PC8KA Chassis)There was a bright white screen with flyback lines on this set. The A1 adjustment had very little effectI found that IC901 (TDA6108JF) on the tube base was faulty, pin 7 (blue o/p) and pin 8 (green o/p) both read s/c to ground. Note: this chip was probably taken out due to the tube flashing over as in my case(Sparky)
Philips TV (ANUBIS A Chassis)Low ContrastC2448 (47uF, 200v) open circuit(Paul Willis)
Bush TV Model: 1473TDead set, Blown BU808DFReplace the BU808DFI and check or replace C602 in the base feed. The drive appears normal, but the set can be slow to start, the BU will overheat & eventually fail again(Steve Hogan)
Jvc Video Model: HRD750DeadThis was due to C14 (1uF, 63v) in p.s.u being faulty, replaced with a 2.2uF, 63V(Markus)
Seleco TV Model: 26SA37NLWhite line in middle screen, several spikesCheck power switch for arcing, also check 1 ohm resistors on switch board for possible dry joints(Anonymous)
Toshiba TV Model: 3798DG (C8SS Chassis)E/W Pincushion distortionReplace D461 damper diode (ERC20-06)(Magic man)
Philips TV (GR2.2AA Chassis)Protection circuit operating intermittentlyDiode 6592 was found to have leakage causing voltage to protection circuit to be too high, Should be 23 - 28mV(Hassan Didi)
Salora TV (L Chassis)DeadDN15 s/c (8v line)(Anonymous)
Mitsubishi TV Model: CT29B2STXBlank raster with sound / field collapseThe field output chip IC451 (TDA8178S) was faulty, as this original Mitubishi part was no longer available a kit had to be fitted (no.H27PO14010 for this model), this uses a different chip - type STV9379(Josh)
Nei TV Model: C25F4FR (CE25 Series Chassis)Int failure of the TDA8380 and SGSIF344Connect wire link between jungle i.c ground lugs to chassis(Cristi)
Samsung TV Model: CK-5320ZR (SCT11D Chassis)Field collapseCheck R410 (1ohm) in feed to D403 for o/c(Anonymous)
Toshiba Video Model(s) V632UK, V642UK, V752UK, V852UKHead Switching Point Adjustment1) Playback the alignment tape.2) Press button SW713 on Main PCB with pincers to set adjustment mode3) Press the SP/LP button on the remote control then adjustment is done automatically4) Turn the Power off.(Donny)
Sanyo TV Model: 21BN1Dead, l.e.d. litR620 o/c. R621 and R620 replaced (both 120K)(A. Gould)
Mitsubishi TV Model: CT25M2TXFrame collapse, destruction of AN5521 frame chip at switch onReplace the AN5521 then replace the 47uF, 35v electrolytic in the power supply. Also check the 330uF, 35v capacitor next to the frame chip for leakage(R. Higton)
Hitachi TV Model: C32FW523NA (A8 Chassis)Procedure to enter service modeSwitch tv on then press menu then press vol up and vol down on the front of the set simultaneously and hold until menu appears(Simon Edwards)
Hitachi TV Model: C32FW523NA (A8 Chassis)No or very dull picture with osd and text just visible, A1 control makes little difference, looks like poor crt18v zener diode Z703 s/c located near lopt, it is part of the acl beam current limiter(Simon Edwards)
Sharp TV Model: 66FW53H (DA100 Chassis)Failure of Q601 (BUH515) and possibly Q506Found dry joints on C613. Also R613 had burnt top of C613. Fitted new parts, found Circuit no longer available. Sharp by name sharp by nature came to mind. Set only just over two years old(Anonymous)
Sharp TV Model: (4BSC Chassis)Low width with lines across screen and feathered edgesReplace C623 and C602(Steve Warner)
Philips TV Model: 21PT166B/00 (AA5 AB Chassis)No drive to LOP transistorMiddle sections checked OK. Carefully scoping the TDA8361's Hor. output showed gnd level to be at +0.8v not enough to drive next stage. Change the TDA8361(Jac)
Samsung TV Model: CW28C33NDead. in safety modeLooks like l.o.p.t but was traced to small decoupling cap on 200v line (on tube base), dead short(David)
Panasonic TV (EURO 7 Chassis)Procedure to enter the service modeSet bass to maximum, treble to minimum, then hold down the index button on the remote and press the v button on the set(Josh)
Proline TV Model: 28N1Procedure to invoke service modePress and hold both the s/by button on r/c and vol-button on front of set whilst switching set on. Channel + and - select param and vol + and - adjust. S/by to storeVariant: As above but use vol up to invoke svc mode as above, yell-MEM on h/s to store(Tony Blick)
Salora TV Model: 1HCANo Power - dead T700 and T701 (BUW41B) and R713 (22ohms, 5W). New parts work short time and dead againDry capacitors C712 and C726 (4.7uF, 35V)(Raymundo)
Hypson TV Model: HY1493 (3915 TH Chassis)Popping or motorboating noise from speaker in standbyCheck Q951 (JC501-Q, mitsubishi Pt no. 260P543050), and Q952 (2SA950-Y, mitsubishi Pt no. 260P255040) and for dry joints around R954, R974 and R985(Anonymous)
Philips TV Model: (GR2 Chassis)Sound but no pictureCheck the LOT cable for short circuit(Anonymous)
Grundig TV Model: ST82-675/9 TOP (CUC6380 Chassis)Dead set, TrippingLOPTX short circuit between most pins!(Anonymous)
Goodmans TV Model: GTV69W3 (11AK19 Chassis)East West distortion, only 16:9 availableResoldered numerous dry joints around east west and heater circuitry. R629 (27R 1/4 W Safety) found open circuit. Replacement + resoldering cured fault.(Jim Ross)
Philips TV (CP110 Chassis)Image appeared after a 5-20 minutes, sound was choppy when changed by the remoteReplaced C2690 (100µF, 50V) with a 100µF, 63V type, this is located on the small overvolt board in the power supply area(Jy)
Philips TV (CP110 Chassis)Vertical ripples on horizontalsReplaced C2633 (100µF, 25V)(Jy)
Salora TV Model: K (K Chassis)No e/w correction This was due to T504(Anonymous)
Finlux TV Model: SN87A2No sound or pictureCheck R44 for o/c and D20 for s/c(Anonymous)
Sinudyne TV Model: 34B0AGeometric distortion, Pillow, and picture enlarged horizontalyThe problem was a short from GND to pin 11 inside IC301 (TDA8350Q). This pin is the output of amplifier for geometric correction signal. Replace IC301(Anonymous)
Grundig TV (CUC4400 Chassis)No image from tuner. Image from AV input (rgb) is rolling over the screen (no synchronisation)Check if teletext is present at the top of the screen. If this is ok replace the TDA5931 (normally the sound will also be missing)(Trancy boy 1)
Grundig TV (CUC4400 Chassis)E.H.T very weird, E.H.T. transformer makes strange sound, no imageMeasure pin 1 of the TDA2579, if there are vertical pulses then measure pin 11 of the TDA2579 for hor. pulses, If missing, or voltages are very low (Mv) replace the IC. The ref. voltage on pin 12 will be present if the TDA2579 works correctly. Measure on pin 10 of the PS(Trancy boy 1)
Sansui TV Model: SV-20BG (11AK03 Chassis)No verticalR822 (15K) open(Joao Soares)
Panasonic Video Model: NVHD100Narrow sync pulse output in E-E but ok when pre-recorded tape is playedReplace 3.3uF, 50v SM capacitor on hybrid IC301, If fault persists replace IC301 on the Y/C sub board(J. Herbert / Anonymous)
Sony TV Model: (BE1 Chassis)Loss of sound when set was cold / extremely distorted sound when cold (after set was turned on)Sound recovered within a few minutes of turn-on and was then normal. Check the electrolytic capacitors and diode near to the audio output IC heatsink. 100% rectification was achieved by replacing the diode and small value electrolytics in the immediate area of this IC's heatsink(Steve Larkins)
Sharp TV Model: 51DT25H (U Chassis)No audio R305 o/cR305 (2.2ohm), Q3021 (BC636), Q3011 (BC635)(Sakander)
Nokia TV (Euro Stereo 2 Chassis)Hard to turn on, hissing sound, bad pictureCheck C787 (10uF, 50V)(Kalle Birgersson, Uddevalla Sweden)
Sony TV (BE3D Chassis)Picture too big, maybe strange colors, shuts down after a few secondsCheck for shorts in IC606 (9V voltage reg)(Kalle Birgersson, Uddevalla Sweden)
Philips TV Model: 28PW6005 (A10 Chassis)Changes to ext 1 when watching tv (ok with video input)IC7064 defective, replace it. Philips best nr= 311125054501. price = 48 euro, after replacement the smart settings have been set to 255 read the instruction note for this software!! Code number instruction note = 996500013923(Steve Walschot)
Panasonic TV Model: TX-21S3TNo line driveThis one had me puzzled for a while until I found that diode D861 was open-circuit (intermittently!)(Graham, Falsgrave Electrical)
Matsui TV-Vid Combi Model: TVR185Accepts tape then immediately ejects itThe capstan motor was faulty. Fitted new motor(Anonymous)
Toshiba TV Model: 28W8DBNo frame drive however sound and line drive is presentE/W correction chip TA1240 (at front of line/frame chassis) was defective, replacing the IC cured the fault(Dave)
Samsung TV Model: CS3339ZNo picture No soundFaulty IC TDA6107q on crt board(Imran)
Seg TV Model: CTV7951GBDead setCheck the following caps, C828 (1000uF, 16v), C817 (1000uF, 16v) and C848 (100uF, 25v). The caps take out the following components in the power section. Chopper FET Q802 (2SK2545) equivalent BUZ901A (need to isolate BUZ901A from heatsink), R817 (2.2ohm/5W), D805 (BA159), D802 (IN4007) and D801 (IN4007)(Ian Paterson)
Jvc TV Model: AV25SD4EKStandby LED changes from Red to Green as normal, but no picture or sound. Set appears not to come out of standbyCheck for dry joints on the line output transformer tags. Resolder all as a precaution anyway(John)
Sharp TV Model: 66FW53HColours ramping, poor greyscaleReplace IC1002/3, Set will need reprogramming afterwards(Chris Brunning)
Philips TV Model: VariousSound but no pictureHave found on some Philips tvs (if they are older then 15 years) that a 2.7r resistor close to the HT transformer goes open, resulting in sound but no picture(Anonymous)
Philips TV (GR1AX Chassis)Sometimes does not start up from cold, but starts well from power off or standby after a few minutesAfter checking all PSU components and consulting many colleagues, casually the tip of my iron touched the body of T2628 (BF423) and the set started. After more then 20 attempts, I realised that this transistor became intermittent when cold(Jose Carlos Pinto - Oporto)
Samsung TV Model: CX5012Volume low, even at maximum settingReplaced IC601 (TC4066BP) close to IF can(Jose Carlos Pinto - Oporto)
Mitsubishi TV Model: BDS29S (11AK19 PRO Chassis)Picture is black with faint green retrace lines, sound etc. okChanged TDA6108JF on CRT board, and nearby 10uF electrolytic which looked damaged. Fixed fault. A resistor next to the capacitor had been changed before but tested okay this time(Joe Kelleher)
Sharp TV Model: 66FW53HDead - neon lit ... another fault!Check the BZW04145 diode across C720, if short circuit, replace and also replace opto-isolator IC704 (MOC8106) and IC706 (TL431 voltage reference). You can put an 817 opto-coupler in diagonally(Andydos)
Sharp TV Model: 66FW53HDead - Neon litR713 and R714 (560K) high or o/c(Andydos)
Philips TV (GR2.2AA Chassis)Does not work after LOT has been changedCheck / change D6561 also change the TDA2579B if there are any sync problems(Anonymous)
Philips TV (GR2.2AA Chassis)Dead, no line oscilation, power supply and line output stage are OKCheck / replace C2549 (390 or 470nF / 400V) and C2545 (1n5 or 1n2, 2000v)(Anonymous)
Philips TV Model: 14GR1221 (GR1AX Chassis)Procedure to enter or exit hotel mode (child lock)Put the set on programme 38, press either store and pr - (to lock) and store and vol - (to unlock), or, press pr - and vol + (to lock and unlock), press buttons on the set (not remote)(Anonymous)
Sharp TV Model: TV14 (Cinema Borg)When set switched on "ENTER YOU LOCKCODE" appears on screen, customer had forgotten the lock codeReplaced the Microprocessor(64 pins)(Engr. Etpiv)
Sony TV Model: KV20TR22Intermittent reception on VHF / UHFResolder tuner especially the around the tuner I.C(Engr. Eugenio T. Penalosa iv)
Bush TV Model: 34BKB 3463NTX/4400Dead / excessive width and e/w bowingCapacitor CL15 was dry jointed and transistor TL4 was s/c, also CL18 (22uF, 250v) was stressed, after replacing these components had excessive width and e/w bowing, the TDA8350Q field ic turned out to be the culprit(Stuart)
Grundig TV (CUC3500 Chassis)No sound (AV-Mode sound ok)Replace IC2210 (U2829)(Anonymous)
Bush TV (11AK19 Chassis)Lack of width / no ew controlThe east west fet Q603 (BUK444-200A) was short and R629 (2.7ohms fusible) was open, replacing both cured the problem. 2 Values for this component: 2.7 ohm in 90 degree crt's ... 27ohm in 100 degree crt's. 32" models value is 56 ohm @ 1 watt safety(Rob Faulkner - Homeview tv)
Proline TV Model: 28N1 (F19 Chassis)Int will lose eprom settings, ie Height etcThe Crt base was arcing internally(Dave Waddingham)
Hitachi TV Model: C2558TN (G8Q Chassis)This set would not switch automatically into A/V mode when a video or any other equipment was connected via the scartThe set could manually be placed into A/V from the tv's front end controls. The cure was to replace ZD301 (ZTE251). I assumed it was a 2V but as i had none in stock i tried a 2.7V zener which worked perfectly. It's located near the scart socket(Sparky)
Panasonic Video Model: NV-G40Picture noisy on all channelsTransistor Q4 (D1330) o/c(Pnx)
Sony TV (FE-1 Chassis)No power (no standby power supply op)IC609 (TOP209) was faulty, also checked C640 (47uF, 25v), D631 (MTZJ-12B), D628 (P6KE200), D629 (UF4005PKG23) and R627 (4.7ohms, 5%, 0.25w) as a precaution(Josh)
Hitachi TV Model: C2558TN (G8Q Chassis)The H.T wouldn't vary at all, even though it was actually at the correct level (157V)ZD941 (BZV10) was found to be o/c. It's a 6.5V zener diode and not as i had assumed by the numbering on it a 10V. ZD941 and the H.T pot VR941 are located next to the optocoupler(Sparky)
Nokia TV Model: SP71D1 and others (Stereo Plus Chassis)Tv does not start from stand-by. Indicator led blinks quicklyReplace the two smd condensers in parallel between pin 2 of IC NO62 (reset line). Remove all of the red glue below the condensers. These condensers must be replaced by new ones of 47nF and 100nF in parallel. IC NO62 (TDA8137) sometimes must be also replaced(Fernando Almeida)
Panasonic Video Model: NVF70Bad picture, may be stripy with blue spotsChange C22 in the power supply (680uF, 10V). I used a 1000uF, it works great(Kalle Uddevalla, Sweden)
Sony TV (FE-1 Chassis)Changes channel or volume adjusts by itselfCheck S900/1/2 on pcb H1, alternatively this could be due to failure of IC005 (CD4052BCM-FL63) on pcb A(Josh)
Akura TV Model: CX11Appears to be no line drive but if scoped the drive is at very high frequencySuspect C308 (3.3nF) high stability type(Jamal)
Panasonic TV Model: TC1400TInt loss of signalsCheck R545 for dry joints(Anonymous)
Sony TV (FE-1 Chassis)Set shuts down shortly after start up with standby led flashing 2, 4 or 5 timesCheck / replace chip resistors R543 (47Kohms) and R541, R573 and R575 (all 100Kohms)(Josh)
Grundig TV Model: 8214Poor linearity / Vertical deflection problemsCheck +D voltage on pin 12 of the vertical deflection module. If this voltage is less then 35V or has ripple replace C628 (3300uF, 50V), also check fuse SI627 (T3,15A). Sometimes this fuse has resistance causing a voltage drop across it(Fernando Almeida)
Rca TV Model: CTC166/167Audio, no videoChange Capacitors C4501 and C4502, in the vertical section(Anonymous)
Ferguson TV (ICC9 Chassis)Ew distortionCheck / replace CL42 (4.7uF, 160v), don`t forget to use 105 Celsius type replacement(Anonymous)
Sharp TV Model: DV3760HDead, led flashing red/green at first, then going to red standbyReplace C604 (1000uF, 16v) elec. cap. It is in the decoupling circuit for the 5 volt supply(John Clifford)
Samsung TV Model: CB5020 (P58SC Chassis)Tuning not stoppingReplace R116 (120Kohms) this was open circuit(Anonymous)
Tatung TV (C Series Chassis)No remote control opMicroprocessor MN15151(Anonymous)
Ferguson TV (TX92 Chassis)Field fold-over / flyback lines visible at top of screenCapacitor CF30 (47uF, 50v)(Anon.)
Panasonic Video Model: NV-HD101No picture on e-e, I.F output okThis was due to switching chip IC3901 (M51292FP) on the scart panel(Anonymous)
Ferguson TV (TX92 Chassis)Dead, No LED, 2.5Amp fuse O.K. Some voltages present at BP02 ON/OFF switch connection. 160v at terminal D of TP16. 26v, 200v, 13v lines all zeroReplace TP16 (P6NA60FI) and diode DP17 (BZX55C15)(Col)
Sony TV Model: KVA2542Fault not limited to this model. Turning itself to standby, mostly when warm. Flashing error code on LED's.Dry joint on IC TDA8179 (under metal shield). May need replacing with STV9379. May also need to alter picture geometry settings (HSIZE, HPOS, VSIZE, VPOS) in service menu(Garth)
Panasonic TV Model: (ALPHA 2W Chassis)Squeal at switch on then goes dead, channel indicator okCheck the l.o.p transistor Q551 for s/c, overvoltage diode D854 for s/c, R564 / R567 (fusible) for o/c and also check C808 (10uF, 63v) and IC801 (STR54041M) and locally for dry joints(Anonymous)
Vestel TV Model: 11AK19 (11AK19 Chassis)Procedure to enter service modeGo to installation menu, then press 4,7,2,5(Kalle Uddevalla, Sweden)
Vestel TV Model: 6392Field collapse (no vertical deflection). No soundReplaced resistor R818 (15k, 1w) which was o/c. This resistor is the limiter for the 33v tuning voltage(Rui Loureiro - Portugal)
Goodmans TV Model: 1476TSSet reverts to standby at switch-onCheck 200v line on tube base for short cct. I901 (TDA6103Q) goes s/c(Jack - Scotland)
Sanyo TV Model: CBP2580The word "factory" in a red box is permanently displayed on screen and sound volume goes from 0% to 50% to 100%Enter service mode, go down to nvm and press volume plus on remote(Anonymous)
Toshiba TV-Video Combi Model: VTV1402SDead, or intermittent start up. No voltage supply to line driverCheck R504 (270k), feed to switching transistor. Goes high or o/c(R. higton)
Philips TV Model: 14PV163Reverts to standby from switch on via TV or VideoNo 5v rail because FET MTP3055 o/c. (BUZ71 will do nicely)(Stu - sjs)
Sharp TV Model: 66FW53 (widescreen DA-100 Chassis, 50 and 100Hz series)E/W faultCoil L603 (part num RCILP0286BMZZ) had severely burnt up and Q506 E/W driver 2SD2391 (Part num RH-TX0151BMZZ) was short circuit. If you have this fault check L604 for invisible dry joints, if you don't you may find you still have an E/W fault when you have replaced the faulty parts(Regards - LB)
Goldstar TV Model: CIT-9322Volume down control on the set will not workEverything else worked fine on this rather old model except the volume down control (i didn't have the handset to see if this was also the case via the remote). The cure was to replace the micro IC1 which was an M491BB1(Sparky)
Hitachi Video Model: VT530E etcPlayback picture freezes repeatedly when warm / capstan motor overhaulThis symptom is usually due to contamination of the capstan motor bearing which can in turn lead to overheating of the drive chip, the problem can often be remedied by dismantalling the motor and thoroughly cleaning the bearing then lightly lubricating with a suitable light oil before reassembly(Josh)
Hinari TV Model: CDTV2Power supply fault, clicking noise, nothing elseCheck C629 (100uF, 25v) for o/c(Anonymous)
Zenith TV Model: D32D51Reddish pictureReplaced Transistor Q2005 Type 2N3906 (shorted)(Anonymous)
Mitsubishi TV Model: CT29B2STXLine output transistor s/c, repeated failureReplace the four caps in the power supply C905 (470uF, 35V), C906 (470uF, 50V), C909 (2.2uF, 50V) and C920 (100uF, 25V) also note transistor varies with different size c.r.t.(Steve b)
Toshiba TV Model: 217D98Severe field distortionCheck capacitor C317 (2.2uF, 50V) in linearity feedback circuit(Steve b)
Aiko / Perdio TV Model: 512Excessive brightness with flybacksCheck capacitor C120 (2uF, 250V) in first anode supply(Steve b)
Philips Video Model: VR722 (LUCY Chassis)LSM-45 power supply faulty after power failureReplaced elco 2112 (100µF, 385V) and capacitor 2116 (100nF, 400V). See also my tip about the philips VR-723 (Cooling down during power outtage). Cheers(Leo hulstein)
Philips Video Model: VR723 (LUCY Chassis)Power supply LSM-45 would not start up after power failureCooling down of the machine during the power outtage triggered the problem: inside the supply module excessive heat is present that causes components to age rapidly, especially those that are located close to the heatsink. Replaced cap. 2116 (100nF, 400V)(Leo hulstein)
Sony TV Model: KV27EXR25No raster, the set will click on but no high voltageReplaced IC651 (on the power board) type STRS6301 (Note: Use an original STRS6301, not an STRS6301A unless the 6301A comes from SONY) This part does run very hot(Billy sean)
Philips TV Model: 27CE4599-33R (2A Chassis)No sound, with sound at maximum you can hear a weak noiseChange IC7102 (U2830B if found, if not U2829B), this IC is located on the sound demod pcb(Leffe)
Salora TV (M Chassis)Procedure to enter service modePress P then * then 0/AV then # then >M* and # (change function)Vol+ and Vol- (change value)>M (store current value)TV (exit service mode)1..7 and . (bytes option)(Salex)
Samsung TV Model: CB5035ZStuck in osd mode, no functionsChange the eprom, check that the earthing of the green cable running from tuner is OK(Leffe)
Jvc Video Model: HRD720Noise bar in playback, looks like error in the guides adjustmentThe problem is the 3.3uf capacitor in the drum motor. This generates Pg signal errors. Replace it and give me a smile !(Walter Rimini)
Ferguson (TX92 Chassis)After replacing the line output TX the set still appears to be trippingTry switching the set on with the remote control. The micro seems to remember the tripping state, the remote control re-setting it(Anonymous)
Toshiba Video Model: V709B (Samsung Chassis)Very slow rewind / fast forwardCenter Gear assy u/s, cracks and drags on chassis, same will apply to Samsung and some Sony machines etc(Nigel, Trident audio visual)
Goodmans TV Model: W322NSProcedure to enter sevice modeSwitch off tv, hold in VOL+ button on tv and STANDBY button on remote, switch back on at mains switch then release buttons, set will then come on in service modeAdjust with PROG. + - and VOL + - store with yellow button(Nigel, Trident audio visual)
Sanyo TV Model: CE28WN4BProcedure to disable protection mode for fault findingThe protection mode can temporarily be disabled to prevent the set going into standby during fault finding by disconnecting R648 (note: safety procedures must be followed !!)(Josh)
Grundig TV Model: M70-1690 (CUC6369 Chassis)Dead, SI621 (1.6amp) blown apartReplace SI621 (1.6A), SI601 (2.5A), D620 (B380 C2000/1500) REC, T644 (IRFBC40) mosfet, IC631 (TDA4605-3), C633 (100uF,25v), this was caused by dry joints on C648(Anonymous)
Itt TV (Comp De 110 Chassis)Does not start when cold, simply produces a very fast trrrr noise...Increased value of C711 (10uF, 63V) by adding a 4.7 uF in parallel on the bottom side of the printed circuit board(Vusu)
Daewoo TV-Video Combi Model: GB14F7T1Smoke came out of vents, then shut downSmall pin hole in line output transformer type FSA36012M(Peter Evans)
Telefunken TV Model: S5400DMD (ICC10 Chassis)At switch on the Led Blinks 3 times, supply tries to come up with a Tick-Tick sound. After trying 4 times to come up it goes to error standby with Led blinking very fast. Error code 3Make sure primary side of power supply is ok by desoldering jumper JL26, connect Pin 3 of IL01 (protection) to pin 4 ground. Bypass DP127. Put 100W/230V lamp on usys. Turn on the set the lamp should glow and pot PP120 should regulate it. I found CL007, CL015 and TL003 shorted(Navneet)
Grundig Video Model: GV400 / GV440Display shows "locked" (sometimes Timer is blinking)Cassette loading is at fault, replace loading gear complete(Mrhard)
Toshiba TV Model: 2857DB (C5SS Chassis)Blue screen, no sound (ok on scart) or snow on screen, no sound, no service mode and menu text fluctuates, channels can not be tunedThe tuner was faulty(Anonymous)
Philips TV (L6 Series Chassis)Vertical lines are not straight when picture is very bright or has white text contentReplace resistor 3420 in the beam current circuit (12k or 15k) replaced with an 18k(Etienne)
Hitachi TV Model: C2566Severe field cramp at bottom of the picture, but very stretched picture at the topC608 (4.7uF, 63v.) in field stage o/c(I.g.d.)
Sony TV Model: KVM2511 (AE1 Chassis)Can not switch on the set, supply okSuspect L807 of o/c (Pt no. 140750400) also check R008 and C017(Anonymous)
Sony TV Model: KV32S10Relay clicks continuously at switch onReplace Flyback(Dan @ dbs electronics)
Hitachi TV Model: C2117TGoes straight to standby, after a quick burst of powerReplaced R952 (39K), had gone slightly high(Mark t)
Sharp TV Model: CV2123 (CS Chassis)Field fault / general modificationAdd a 1N4148 diode from the emitter of Q509 to cathode of D513 (cathode to emitter of Q509), Pt No. RH-DX0045BMZZ, change R534 to 390ohms (Pt No. VRS-TV1JD391J) and add a fuse in series with L607 and L608 (Pt No. QFS-J1023CEZZ)(Anonymous)
Multitech Video Model: VP-1600Black screen on playback, no test signalResolder and clean test switch(Spiros gr)
Ferguson TV Model: T14R (TX805 Chassis)Dead, no standby ledRP41 (65k ohms) was o/c(Brio)
Crown TV Model: CT 2011Crackling audioCheck for failure of IC101 (KA2914A) (TA7680AP equiv)(Anonymous)
Itt TV Model: ITT 3362 (Pico 2/ST3 Chassis)Tv dies after running for a few secondsReplace 4.7uF capacitor in the switching power supply unit!(Handoyo)
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1 comment:

Martin said...

Can anyone help me i have Sharp C-1410SW and has a white horizontal line (vertical sync i guess?), wery low sound. Sometimes the picture comes, but after an hour... Help