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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: 4551
Philips2ADead - 300v on BUT collector.D6663 ( 1N5062 ) leaky.14-09-04
Philips2ADEAD APART FROM TICKING NOISED6700 6v8 ZENER SC14-09-04

Philips2ADead - blows LOPTr instantly at sw onTDA2579 drive chip faulty (dist line dr wform)14-09-04
Philips2ADead - trippingOK on dummy load - LOPTx faulty tho checked ok on tester14-09-04
Philips2ADead or int deadOK on dummy load - C206 u/s and bulging slightly14-09-04
Philips2ADEAD SET , OVERVOLTS THYRISTOR FIRINGC2698 ( 4.7mfd ) o.c.14-09-04
Philips2ADead with 2A fuse o/c, 2 mains rects s/cReplace CNX62 optocoupler & Tr7686 BC36914-09-04
Philips2ADEAD WITH 300v COLLECTOR BUT11AFD6663 1N5062 LEAKY14-09-04
Philips2ADead with whiningLOPTr leaky - used BU508V; dry joints line dr tfmr14-09-04
Philips2ADead with whiningR3602 1R safety res o/c; C2602 10µ 63v s/c; R3601 5R6 safety res o/c14-09-04
Philips2ADead.Standby thyristor 6727 ( BT151 ) s/c.14-09-04
Philips2ADestroys line TRRemove line drive TX clean pins and refit14-09-04
Philips2ADoes not start.Check C2670 (68nF polyester flat foil 63V). Check C2681 6,8 uF14-09-04
Philips2ADoes not tune. Right channel number in display.In search tuning mode the tuning voltage of channel selector remains 33V. R3740 (5R6; 4822 050 25608) broken in CITAC module. 14-09-04
Philips2AEXCESSIVE WIDTHCHECK R3602 15 OHM ( SAFETY )14-09-04
Philips2AExcessive width - preset ( R3595 ) has no effect.R3602 ( 15ohm ) fusible o/c ( no 23v rail ) , Drys on T5611.14-09-04
Philips2AFaint pattern of vertical lines.With text fall out. solder text ICs direct to panel.14-09-04
Philips2AFIELD CHIP FAILS REGULARLYC2571 , C2565 , D 657014-09-04
Philips2AField collapseTDA3654Q F o/p chip & C3571 100µ 25v hi esr14-09-04
Philips2AFIELD POOR LINEARITYC2575 4u7 63v14-09-04
Philips2AFine grill effect over pic - can be intIC holders on txt panel int - remove chips & solder in directly14-09-04
Philips2AFrame bounce when coldThis was cured by replacing C2550 1 uF (4822 124 40242).14-09-04

Philips2AFrame collapse - blows chip after few days.Change IC , C2571 ( 100uf ) , D6646 ( BYD33G ) , C2646 ( 1 , 000uf )14-09-04
Philips2AFrame IC blowing.Fit C2565 ( 390pf ) between pins 1&5 of IC7570 ( frame )14-09-04
Philips2AFrame IC TDA3653AQ/4Q blowing.C2571 ( 100uf , 25v ) , C2565 ( 390pf , 100V )14-09-04
Philips2AFuse 1651 blows.Diode 6664 (BYD33J; 4822 130 42606) and C2664 (1,5 nF; 1kV; 4822 122 40308) defective. 14-09-04
Philips2AHT & chan no show for 1/2 sec at sw on then deadOK on dummy load & works when heated - C2681 6µ8 63v hi esr14-09-04
Philips2AHT LOW AT 25v IF POWER SUPPLY UNLOADED OK ( 140v )R3690 82R OC IN POWER SUPPLY14-09-04
Philips2AHT LOW AT 40-50v SET SQUEALSC2697 C2701 OC14-09-04
Philips2AIntermittent loss of raster.C2496 going o/c.14-09-04
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