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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: 165
NEI2131FIELD COLLAPSE NO FIELD DRIVED001 TAA550 33v STABILISER US ( FEEDS REFERENCE INTO TDA8305 )14-09-04
NEI2131Field collapse/ int height & going off tuneD001 TAA550 33v volt stab faulty - (feeds IC100 TDA8305 jungle chip)14-09-04

NEI2131Field lineararityC407 ( 1 , 500uF ) 50V14-09-04
NEI2131No pic - sound okPin 8 TDA3651A sandcastle pulse low - TDA3653 pin 7 FOP chip was cause - FOP chip faulty14-09-04
NEI2131No soundCheck for D/J on Speaker plug14-09-04
NEI2131Sound No picR605 ( 5K6 ) 2Watt14-09-04
NEI2131TXDead - off with a bangLOPTr Q600 s/c because C604 1µ 160v was dry jointed, also D604 BA157 s/c, R609 10k burnt up14-09-04
NEI2131TXInt deadDry joints L802 in psu - virtually invisible14-09-04
NEI2151Bright raster with fb lines with noisy LOPTxR731 on crt base o/c & check col decoder chip14-09-04
NEI2151 ( Indiana 10 IndianaBright raster and flyback lines.R73 1 on the CRT base panel was open-circuit , removing the supply to the RGB output stages with this fault you sometimes have14-09-04
NEI2151TXDead - 1.6a fuse blown.D802/805 ( 1N4007 ) s/c.14-09-04
NEI2151TXDistorted sound.TDA850314-09-04
NEI2151TXTripping.D804 ( BY398 ) s/c.14-09-04
NEI2591FTXNexcess width with bowed vertsR371 1R o/c due to tv operated with line scan coils dis'd14-09-04
NEI2591FTXNNo EW correctionno pulses pin 8 TDA8145 EW chip. Check 2 x 150k feed resistors14-09-04
NEI2591FTXNno line osc - comes out of st/by but no green ledcheck earthing of lop tr heatsink (wire link by C130)14-09-04
NEI2591FTXNno r/ccheck TFMT4380N ir rec data o/p14-09-04
NEI2591FXNst/by onlyD104 5v1 zener, Tr100 chopper, optocoupler, increase value C109 to 3µ314-09-04
NEI2591FXTNDead or int deadHT ok but line drive missing - bad earth conns between chassis & sig earth - hard wired14-09-04
NEI2871E/W faulty & no OSDR130 150k o/c14-09-04
NEI2891 (CE25)Dead - off with a bangChopper Tr 100 SGSIF344, D104 5v1 zener, TDA8380 control chip all s/c; IC100 TCTD1101 opto coupler leaky, R102 0R22, R109 13k7 burnt out, C122 22µ 100v leaky14-09-04
NEI2891FTXNField bounce from coldC9 10µ 50v in IF can14-09-04

NEI2891FTXN CE25Int reverts to st/byDry joint at link under C15414-09-04
NEI2891FXTNDeadDry joints scan coil plug had destroyed LOPTr14-09-04
NEI2891FXTNPulling picreplaced 3 elect caps in IF unit14-09-04
NEI3743Dead - blew BUZ77 & 0R47 feed res330k resistor in pri psu hi res14-09-04
NEI5559NTDeadR802 100k 1/2w in PSU pri hi res14-09-04
NEI7296Poor pic, flashing lines, varying widthC031 47µ 250v leaky14-09-04
NEIALLBLANK SCREEN - NO SOUNDR134 680k PIN 19 TDA 450514-09-04
NEIALLDeadD/J L80114-09-04
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