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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
Make
Model
Problem
Solution
Date
Found: 4551
Philips
G8
Raster - bright raster & flyback lines.
R5576 ( 4R7 ) o/c on scan panel.
14-09-04
Philips
G8
Sound - crackle may be intermittent.
Plug/socket.
14-09-04
Philips
G8
Sound - distorted.
C226 ( 50uf ) low value.
14-09-04
Philips
G8
Sound - ticking.
C2204 , C2201.
14-09-04
Philips
G8
Sync - line hold shoot off.
R521 ( 15R )
14-09-04
Philips
G8
Sync - line sync.
LOPTX pin 3 intermittent on IF panel.
14-09-04
Philips
G8
Tuning - drift.
Tuner.
14-09-04
Philips
G8
Width - excessive.
C5545 , C5546.
14-09-04
Philips
G9
Frame collapse.
Drys on left hand side of convergence panel.
14-09-04
Philips
G90
bright raster - poor field lin
163v line low at 90v - R3570 8R2 o/c
14-09-04
Philips
G90
Continuous page header display in subtitle
Change text IC to type MAB8461P/W196 part No4822 209 62479
14-09-04
Philips
G90
CONTRAST CONTROL LIMITED
C2560 ( 33nf ) LEAKY PIN 7 , LOPT.
14-09-04
Philips
G90
Dead chopper transistor s/c.
Also change CNX83A optocoupler part No.4822 130 82034
14-09-04
Philips
G90
Dead.
Check for drys on chip diodes.
14-09-04
Philips
G90
field collapse
D6465 sm
14-09-04
Philips
G90
Frame collapse.
Wickman fuse to o/p transis o/c , R3503/07 , R3501 390k o/c.
14-09-04
Philips
G90
Int loss of tuning
X2402 eeprom chip
14-09-04
Philips
G90
No blue.
D6416 ( BAS32 ) leaky.
14-09-04
Philips
G90
NO LINE OSC
IF VOLTAGE ON PIN 16 TDA2579 IF NOT 9v CHECK ACROSS D6455 5v6 ZENER IF OK HERE REPLACE T7455 IF NOT REPLACE ZENER
14-09-04
Philips
G90
no start up - tripping
D6611, 6613, 6614 BAS32
14-09-04
Philips
G90
off with s/by led flashing
ht low & pulsing - R3632 15k in prot cct u/s - C2630 & R3668 also possible
14-09-04
Philips
G90
Picture too big
Replace T7652 & CNX83 opto
14-09-04
Philips
G90
SET WORKS BUT NO TEXT AND F7 DISPLAYED ON SCREEN
NO RESET PULSE TO IC7800 CHECK TR7846 AND C2843 220uF
14-09-04
Philips
G90
snowy pic
check pin 6 tuner. If absent check R3001 15R
14-09-04
Philips
G90
Tripping
R3668 sm 150R
14-09-04
Philips
G90
Tripping - works on reduced HT
D6656 33v prot zener in HT sensing faulty - replace all 3
14-09-04
Philips
G90
trips after few mins operation
Tr7652 BC557C
14-09-04
Philips
G90
Tuning - drift but green line moves.
ZTK33B 33v stabiliser.
14-09-04
Philips
G90
Verticals corrugated
C2630 ( 47uF )
14-09-04
Philips
G90AE
Blank raster - text Ok.
C2569 ( 33nf ) o/c.
14-09-04
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