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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: 101
PhilipsG90AE 21 GR2350No soundIC7220 I/C sound chip TDA819114-09-04
PhilipsG90AE 21GR2350Shuts down with motorboating noise aft 10 minsDry joints Q7502 in FOP14-09-04

PhilipsG90AE 21GR2550Tripping PSUCheck/replace 3 x 33v sm zeners in series14-09-04
PhilipsG90AE 21GR2552PSU shutting down with popping sound. LEDs flashingHT going down to 20-30V and tripping due to DJ on SMD R366314-09-04
PhilipsG90AE 21GR2554"F7" displayed with snow & no control - LED flashes orangeC2843 220µ near LOPTx low cap14-09-04
PhilipsG90AE 21GR2554F7 on screen, no sound, stuck on channel, may be intermittentC2843 near LOPTx14-09-04
SonyAE-2shuts down with BLED flashing 13 timesfield fault indication - but was R895 18k sm o/c which monitors line fb pulses14-09-04
SonyAE-2To disable prot lineremove pin 1 marked "PROT" on µ pcb14-09-04
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-2Arandom characters appear on screensix point cure - see bulletin, will req IC 8-759-362-7914-09-04
SonyAE-2A KVA2532Uint loss of soundQ209 2SC2412K (mute transistor)14-09-04
SonyAE-2Bint lack of width & HT Q281 in prot cct on scart pcb14-09-04
SonyAE-2BLED flashing slowly - no gofield fault - dry joints fop chip IC50114-09-04
SonyAE-2BNo chan store & poor geometry LEDs flashingSDA line low due to D071 zener 5.6v leaky14-09-04
SonyAE-2Bno pic except on AV chanall progs set to ext in preset memory - in service mode set to INIT BYTE14-09-04
SonyAE-2Brandom characters appear on screenthree point cure. Change IC002 to 8-759-361-42, add Q004 DTC144EK to existing print pattern on M2 board, connect base Q2002 to collector Q00414-09-04
SonyAE-2B KVA2542Uif all external speakers are connected then sound cuts out after 10 min, Ok if centre speaker is removedR627 27R gone high (124939811)14-09-04
SonyAE-2B KVA2542Ustuck in stby with LED flashes 13 times, frame IC was replaceddisable protection and switch on, if you get frame foldover at bottom replace scan coils (873385305)14-09-04
SonyAE-2B KVA2942Udead, no 300V supplyR614 18k 3W o/c on LOPTx pin 8 (121648811)14-09-04

SonyAE-2B KVA2942Usound cuts out after 20-30 min, pic OkR626 27R 0.25W safety gone high14-09-04
SonyAE-2B KVG2515no satellite receptionQ3001 2SC2412K leaky14-09-04
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
SonyAE-2FSupply lines all low - partial operationsame on dummy load - R641 1M & check R64214-09-04
SonyAE-2F KV2942Uno powerC609 22uF 25V14-09-04
SonyAE2"Txt not available" message on screen & menu screens shifted to rightR38 750k or IC101 SDA5248-5C1 Txt dec chip pt no 8-759-166-41 on Txt pcb o/c14-09-04
SonyAE2Chopper TR Q601 s/c ( BUZ91A ) f.e.t.Check R604 ( 150K ) & R610 ( 180K )14-09-04
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