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Repair tips

Electronic appliance repair tips database - TV (LCD,TFT,Plasma,Digital), Monitor, VCR, DVD recorder and player, Digital camera, Audio equipment, Microwave ovens, Phone systems, Computer repair

MakeModelProblemSolutionDate
Found: 43
B & OL2505st/by only after short squeal at sw onlop tr TR11 S2000A3 s/c and resolder dry joints esp at C34 6n814-09-04
CathayCTV3505Excessive blue.C503 leaky on CRT base.14-09-04

CathayCTV3505No line drive.L404 o/c.14-09-04
CathayCTV3505Red raster with flyback lines .C509 ( 330pf ) leaky on CRT PCB.14-09-04
Samsung5052X P64Raster blanked offNo Y signal out of jungle chip to timebase - R420 22k feeding line pulses to jungle chip o/c14-09-04
SamsungCI5052No sigs & partial field collapseB+ (12v) to tuner low at 1.4v. R419 10R safety res o/c (not shown in manual)14-09-04
SamsungCI5052 P68"Store" & "Channel" in flash on screen1N4148 diodes in key strobe lines to micro RIC01 leaky14-09-04
SamsungCI5052ATFIELD LOWERS WHEN WARM THEN BOUNCESIC402 MC781214-09-04
SamsungCI5052ATFRAME COLLAPSECHECK D412 AND R41214-09-04
SamsungCI5052ATHeight reduces with bounceIC402 12v reg MC781214-09-04
SamsungCI5052XHigh HT should be 125vC852 470µ 16v14-09-04
SamsungCI5052XInt low brightnessA1 pot on LOPTx & C907 10nF 2kv14-09-04
SamsungCI5052Xst/by only86v HT, R813 o/c14-09-04
SamsungCI5052XTHum BarC851 100µ 400v mains smoother o/c14-09-04
SamsungCI5052XTNo sound/vis with st/by LED flickering125v HT only 70v; IC801 SDH209B14-09-04
SamsungCI5052XTSt/by onlyC852 470µ, C418 1µ 250v hi esr, Q402 2SD 1651 (loptr) s/c, R826 1R ?w o/c- replace loptr with correct type (I didn't & it went s/c again 3 days later!)14-09-04
SamsungCI5052XT P68NO S/V , WITH SBY LIGHT FLICKERINGSDH209B IC80114-09-04
SamsungP68 CI5052Xint. crackle/lines or colour dropout, varies with contract levelresolder C305 and C41614-09-04
SamsungP68SA CI5052ATno frameD401 ERB4304 (32167-208-510) s/c, R412 1R 0.5W (31059-002-010) o/c14-09-04
SamsungP68SC CI5052XTframe collapseD401 ERB4304 (32167-208-510) s/c, R412 1R 0.5W (31059-002-010) o/c14-09-04
SamsungP68SC CI5052XTTV in mute after 5 min goes to stbyR703 27k o/c14-09-04
SamsungTVP5050Reverts to st/by aft pic displayed for a few secsLighthouse LED not working - faulty14-09-04

SamsungTVP5050IST SCV11FSigs int lost with line of instabilityTuner - can check it by swapping them over (2 identical ones incorporated in this set)14-09-04
Toshiba2505 , 2527DOLBY SUOUND FAULTSEE Toshiba TEC BULLETIN14-09-04
Toshiba2505DBDead with Audio Amp chips blastedCheck chopper Tx - may have s/c across windings supplying audio stage14-09-04
Toshiba2505DBField - partial collapseC372 2µ 50v under IC371 had leaked & caused conductive path on pcb. Clean & replace C37214-09-04
Toshiba2505DBFIELD COLLAPSE WITH 4-5 FLYBACK LINES ABOVE THE LIIC371 TA8739P Pt No BO38368014-09-04
Toshiba2505DBint blue mute screendry joints tuner14-09-04
Toshiba2505DBInt loss of signalsDry joint 4Mhz Xtal in tuner14-09-04
Toshiba2505DBINT PICTURE DISAPPEARS SCREEN GOES TO BLUE MUTEXTAL IN TUNER PRESCALER DRY14-09-04
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