Philips Repair Tips

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Results: 14210

Make	Model	Symptom	Problem
PHILIPS	2A	No tuning front display shows correct channel	R3740 ( 5.6r ) on citac module o/c.
PHILIPS	2A	No tuning but displays correct chan no.	Tuning volts remain at 33v; r3740 5r6 on citac module o/c (no 5v to tuner divide by 256 cct)
PHILIPS	2A	No pic/sound - led blinks in time with ht	Repeated resetting of micro due to reset drive 0.5volts low - fit additional 10µh choke across l5642 to restore 7v value
PHILIPS	2A	No frame - 2x resistors burnt up by loptx.	R3638+3645 ( .33r ) , check diode by them , frame ic tda.
PHILIPS	2A	Moire type patterning	Check the ceramic cap across fop chip isn't missing (if you've just changed it for instance)
PHILIPS	2A	Memory - loss.	Degaussing thermistor.
PHILIPS	2A	Lines/tearing until warmed up	C2550 1µ 63v hi esr
PHILIPS	2A	Lines - vertical over whole screen.	2691 ( 33pf ) , 3691/2 ( 3.9m ) , drys in power supply/earthing
PHILIPS	2A	Line tear and poor field sync	C2550 1uf
PHILIPS	2A	Line ripple aft few mins with low ht	C2664 - normally causes dead set
PHILIPS	2A	Lack of contrast.	R3496 ( 15k ) , d6493 12v zener.
PHILIPS	2A	Intermittent no raster.	Check if pin 7 ( tda3561 ) has gone to 0v if so c2496.
PHILIPS	2A	Intermittent loss of raster.	C2496 going o/c.
PHILIPS	2A	Ht low at 40-50v set squeals	C2697 c2701 oc
PHILIPS	2A	Ht low at 25v if power supply unloaded ok ( 140v )	R3690 82r oc in power supply
PHILIPS	2A	Ht & chan no show for 1/2 sec at sw on then dead	Ok on dummy load & works when heated - c2681 6µ8 63v hi esr
PHILIPS	2A	Fuse 1651 blows.	Diode 6664 (byd33j; 4822 130 42606) and c2664 (1,5 nf; 1kv; 4822 122 40308) defective.
PHILIPS	2A	Frame ic tda3653aq/4q blowing.	C2571 ( 100uf , 25v ) , c2565 ( 390pf , 100v )
PHILIPS	2A	Frame ic blowing.	Fit c2565 ( 390pf ) between pins 1&5 of ic7570 ( frame )
PHILIPS	2A	Frame collapse - blows chip after few days.	Change ic , c2571 ( 100uf ) , d6646 ( byd33g ) , c2646 ( 1 , 000uf )