PHILIPS TV Repair: Common Faults and Solutions.


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PHILIPS Repair Guide: Common Issues and Fixes

Brand Model Fault Detailed Problem Solution By
PHILIPS2B
Field foldover with bright lineC2582 680µ
PHILIPS2B
Dead - blown chopper transistor.T7685/6 , d6686 , d6672 , d6607/71 , d6690 , r3687 , r3670 , c2690.
PHILIPS2B
Continuous page header display in subtitleChange text ic to type mab8461p/w196 part no4822 209 62479
PHILIPS2B
Contents of memory lostThe failure occurs when the set is switched off by the power switch. replace battery 1925 (4822 138 10313) check and replace if necessary ic 7925, ic 7926 (pcd 8571p; 4822 209 83571)
PHILIPS2B
Checking the power supplyChecking the power supply ------------------------- 1. remove connector m17 2. connect a lamp 220v/75w across c2701 3. switch on set 4. lamp lights, +140 v present this means power supply is ok
PHILIPS2B
Causing interference to fm radio reception.Mod.
PHILIPS2B
Blanked pic for first 5 mins from sw onCheck/replace 6x33k res on crt base; add 1n4148 in series with d6492
PHILIPS2B
+ 140 v not presentReplace ts7687 by 2sc3973b (4822 130 60851), change r3671 into 22Ω/5watt (4822 113 41152) and replace ts7685 bc547 (4822 130 44257) and replace ts7686 bc369 (5322 130 44593) and replace d6690 bzv85/c5v1 (4822 130
PHILIPS2B
+ 140 v not presentCheck soldering points of sops-transformer (t5663) and line transformer (t5620)
PHILIPS2A
Wont store analogue settings even after battery replacedLeave tv for a few days with battery disconnected (presumably it resets something in tv)
PHILIPS2A
Will search correctly but when station found willReplace sab3037
PHILIPS2A
Width - fluttering in and out.C2609 ( 9.1nf or 7.5nf )
PHILIPS2A
Weak picture, contrast too low.Check r3291 (15 kΩ; 4822 116 52244) and d6493 (bzx79/c12; 4822 130 34197).
PHILIPS2A
Vertical stripes from time to time.Socket of ic7770 on teletext decoder makes bad contact.
PHILIPS2A
Vertical output ic7570 (tda3654q) defectiveReplace: ic7570 tda3654q 4822 209 73308 c2571 100uf electrolytic 25v 4822 124 40207 c2565 380pf plate ceramic 100v 4822 122 32121
PHILIPS2A
Ts7618 (bu508) short-circuited/tv whistles.C2609 broken (5n6 2kv; 4822 121 41534 or 9n1 1.5kv; 4822 121 42418) check also c2610 and c2618 (4822 122 32501).
PHILIPS2A
Trips intOpto-coupler int
PHILIPS2A
TripsMab8441 micro sc
PHILIPS2A
Tripping intermittent.C2609 ( 9.1nf or 7.5nf )
PHILIPS2A
Totally inoperative set. squeaking sound when turned on.Check and replace r3601 (e/w) and check diodes close to thyristor.