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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: 1286
AiwaCXZR800KAt sw on relay clicks "DEMO" displayed then dead - keeps repeatingCheck 2 x 2SK2723 FETs on sound o/p heatsink14-09-04
AiwaVXT1000Dead TV sectIC4 STK7348, R103 1R5 3w, R104 27R 3W, R105 1k 1/2w. C90 1µ 50v was to blame14-09-04
AiwaVXT1000STK7348 chopper chip int failsC88 3300pF 1kv can be the cause even tho' it looks ok14-09-04
AiwaVXT1000 Mk2DeadHt ok at 120v - ICP1 o/c14-09-04
AiwaVXT1000 Mk2DeadSTK7348 s/c pins 3 & 7, also R103 1R5 3W o/c, R104 27R 3w, R105 1k 1/2w & C90 1µ 50v14-09-04
AiwaVXT1000 Mk2Dead - no line driveD7 9v1 zener & C105 330µ 16v both s/c14-09-04
AiwaVXT1000 Mk2Failure of IC STK7348 in tv psuReplace:R102. 33ohmlW Part No S5 34A 330 000 R104 27ohm 3W Part No Sl 330 703 000(6.25UKP) RlOl 33ohm7W Part No Sl 330 862 000(8.37UKP) Also please check and if necessary replace:R103(3.76UKP) R105 Replace as required. R109(4.00UKP) NOTE: Do not replace IC on its own.<<14-09-04
AiwaVXT1000Mk2DeadSTK7348 psu chip & C88 0.0033pf 2kv14-09-04
AiwaVXT1000Mk2Dead TV sect - vcr sect okC88 0.0033µ 1kv burnt; STK7348 psu chip s/c; R109 3R9 7w o/c14-09-04
AiwaVXT1000Mk2No pic sound okC88 3n3 1kv burnt14-09-04

AiwaVXT1000MkIISound no picture.Replace IC4(STK7348) and C88(3n3 1kv).14-09-04
AiwaVXT1400KERRed weak in picReplace C905, 7 & 9 1µ 50v in RGB drives14-09-04
AkuraCX1400deadht to lop tr ok; ht low on line dr tr coll. Perm 5v on driver tr base due to non osc of x701 at pin 25 IC703 on dig pcb. Dry joint between xtal & chip14-09-04
AkuraCX1400int functs - off, frame coll, st/by, blank rasterremove dig pcb and blanket resolder14-09-04
AkuraCX1400TDead.Q801 ( BUT11AF )14-09-04
AkuraCX1400TFrame collapse.IC301 ( TDA8172 ) , C302 ( 1000uf35v ) , C306 ( 2200uf25v )14-09-04
AkuraCX1400TInt sound.IC601 ( TDA1013B ) , C607 ( 220uf35v ) or C603 ( 1000uf25v )14-09-04
AkuraCX1400TLong time to come on/rolling/random txt7v rail low at 5.5v - C841 470µ 16v14-09-04
AkuraCX1400TTakes a long time to come on. When it did come onC841 ( 470uF , 16V ) fit a 25V , 105R C type.14-09-04
AkuraCX1400TTripping.Q401 ( 2SD1555 ) , LOPT14-09-04
AlbaCTV3400Field foldover at top when cold - HT low at 96v (115v)Q506 o/c14-09-04
AlbaCTV4800No soundQ201 2SC2703 faulty, TDA1904 audio chip faulty14-09-04
AlbaCTV600Int shut downcrack in print near chassis fixing screw (emitter chopper tr to R914 near Q904 heatsink)14-09-04
AlbaCTV600SHUTS DOWN INTCRACK IN PCB BY MOUNTING SCREW NEAR Q904 HEATSINK14-09-04
Alba/BushCTV100Uncontollable vol that wont reduceL101 o/c14-09-04
AmstradCTV1000Blank white raster , sound control o/cQ7601 ( 25C1675 ) , C7901 ( 240pf ) S/C tune/f14-09-04
AmstradCTV1000Line collapseDry joints line lin coil L770214-09-04
AmstradCTV1000Line hold drifts int.Dry on line hold control14-09-04
AmstradCTV1000Raster - blank - sound Ok.Q7601 ( 2SC1675 ) C7901 ( 240PF ) S/C14-09-04
AmstradCTV1400Buzzing - intermittent.Adjustable capacitor on sound IF subpanel.14-09-04
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