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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: 92
GoodmansTVX201T DaewooNo sigs & pattCC554 10pf leaky sm in IF14-09-04
SonyAE-1 KVX25TUblank screen, no sound, may be int.DJ Q608 12V regulator14-09-04

SonyAE-1B KVX2132Ureduced heightR802 0.47R14-09-04
SonyAE-1B KVX2932Uframe foldover at the topC531 1000uf 50V14-09-04
SonyAE-1C KVX2552Uint colourreplace trimmer CT332, short pin 11 of IC331 TDA4510 and adjust trimmer CT332 for near stationary colour14-09-04
SonyAE-1C KVX2552Uint switch on/deadresolder IC604 located under plastic chassis assy14-09-04
SonyAE-1C KVX2942UOSD wobbles int from side to side, set switches offresolder 12V regulator under plastic chassis14-09-04
SonyAE-1C KVX2942Uvery weak sound (as if in mute)D271 13v zener (8-719-921-88) o/c in the PSU14-09-04
SonyAE-1C KVX2952Udead, chopper Tr s/cC611 47uF 50V, Q602 87292090214-09-04
SonyAE-1C KVX2952Uflyback lines on the topC532 100uF 50V14-09-04
SonyAE-2 KVX2162Ustuck in stbyresolder IC1501 and its heatsink14-09-04
SonyAE-2 KVX2562Udead, no LED, fuse OkR610 120k and R612 430k gone high (do not forget to discharge smoothing cap)14-09-04
SonyAE-2 KVX2562Uframe collapseIC501 (875950646) u/s. A new plastic rivet to clamp IC heatsink to main heatsink may be required, part 748121340014-09-04
SonyAE-2 KVX2562ULED flashing error 2B board not seated correctly due to wiring harness being positioned under board14-09-04
SonyAE-2B KVX2972Uno pic, no sound, line stage workingR804 1k o/c (no 140V on CRT)14-09-04
SonyAE-2B KVX2972Uno pic, sound OkR701 680k o/c on CRT14-09-04
SonyAE1 KVX2542YField o/p chip has short lifeLOPTx faulty - gives excess 27 volts supply (32v)14-09-04
SonyAE1B KVX2132ULines over bright parts of pic & rollingQ598 in video amp circuit faulty, C592 100µ was the cause. 14-09-04
SonyAE1B KVX2532UAudio LH chan int goes to max with crackleTDA6200 on Audio J panel sus. As this chip is expensive, commoned both o/p to good chan14-09-04
SonyAE1B KVX2532UInt Txt & Lum (when ae plug wiggled)Dry joints IC pins on Txt board14-09-04
SonyAE1C KVX2142UDead apart from LED flashing once every 12 secsOnly 7v from 12v reg/sw tr Q607. D618 5v6 zener leaky14-09-04
SonyAE1C KVX2532USquegging line freq or dead if left on too longQ804 LOPTr s/c due to dist line wfrm - R822 1k in Q805 coll feed o/c14-09-04

SonyAE1C KVX2552ULoud crackle int & pic goes offCheck dry joints IC604 & D612 located under strut14-09-04
SonyAE2 KVX2162UInt loss of pic with LED randomly flashing - sound okR701 680k in A1 supply14-09-04
SonyAE2 KVX2162UNICAM LEDs flash 4 timesCol decoder IC14-09-04
SonyAE2 KVX2562UBlank dull green raster - slight pic noticed if A1 volts critically set, sound etc okIt’s the CRT! 14-09-04
SonyAE2 KVX2562UInt. unsynchronised text lines flashing all over the pictureReplace IC02 SDA5231-2 on V-board (you can use SAA5231 instead of SDA which is about 10 times cheaper)14-09-04
SonyAE2 KVX2562UText & Menu a mass of unsync linesOrange trimmer CT01 on V-board next to IC02 SDA5231-2.14-09-04
SonyAE2 KVX2575USt/by onlyCheck caps in psu pri14-09-04
SonyAE2 KVX2962Flashing LEDs from cold - A1 flash B 8 flashesIC684 9v reg dry joint under strut14-09-04
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