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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: 60
Akai
T
V20
34
St/by only with HT only half normal & LED flashing
Stuck in chjld lock mode - disable using handset
14-09-04
Amstrad
CT
V20
0
No sound or picture
R726 ( 1ohm , 1W ) O/C
14-09-04
Amstrad
CT
V20
00
Dead
Check C509 for o/c Or R726 ( 1k ) o/c
14-09-04
Amstrad
CT
V20
00
Distorted sound.
R313 high in value.
14-09-04
Amstrad
CT
V20
00
Field collapse
Check V at pin 9 TDA3652 ( 28V ) & V at pins 12 & 15 LA7800 .If no 12V at pin 12 R840 ( 10ohm ) 2Watt o/c
14-09-04
Amstrad
CT
V20
00
Field top foldover
C720 4µ7 160v
14-09-04
Amstrad
CT
V20
00
Int going off.
LOPTX arcing.
14-09-04
Amstrad
CT
V20
00
Reduced height/foldover
C720 4µ 160v o/c
14-09-04
Amstrad
CT
V20
20/2028 Bush 2866
Searches but finds no sigs
R124 15K 2W O/C located behind the PSU in the centre nearest the front controls
14-09-04
Amstrad
ST
V20
No col, pic dark & bending at sw on
C73 100µ 35v
14-09-04
Amstrad
ST
V20
No startup - relay chattering.
R1997 ( 3.3MR ) gone high.
14-09-04
Amstrad
ST
V20
St/by only
R1997 2M2 o/c
14-09-04
Amstrad
ST
V20
Whistle from psu
STK73907 IC1901
14-09-04
Beon
CT
V20
01R
Dead.
R109 ( 220ohm ) high or o/c.
14-09-04
Beon
CT
V20
01R
Slow to come on.
R109 ( 220ohm ) high or o/c.
14-09-04
Beon
CT
V20
01R
Squealing from PSU.
R109 ( 220ohm ) high or o/c.
14-09-04
Beon
CT
V20
01T
Frame collapse.
R314 ( 3.3ohm ) o/c.
14-09-04
Fidelity
CT
V20
T
No sound
No volts at pin 13 IC3 TDA8190 - R59 100k in series with vol cont hi res
14-09-04
Goodmans
CT
V20
XRT
Contrast weak
TDA3562A pin 6 volts low at 1.3v & doesn't vary - R414 33k o/c
14-09-04
Goodmans
CT
V20
XRT
Dead
CHECK 2R2 SURGE LIMITER R313
14-09-04
Goodmans
CT
V20
XRT
Dead
R313 2R2 surge lim o/c
14-09-04
Goodmans
GT
V20
CTV
Dead
C125 100µ in 12v reg supply line
14-09-04
Goodmans
T
V20
RC
Dead set.
R802 o/c.
14-09-04
Goodmans
T
V20
RC
Frame collapse.
R326 ( 3ohm ) safety o/c.
14-09-04
Goodmans
T
V20
RC
No pic
R430 10R in 180v supply to RGB o/c
14-09-04
Goodmans
T
V20
RC
No sound
R601 560R o/c
14-09-04
Goodmans
T
V20
RC
No sound or raster - Sby LED & ch indicator Ok.
R801 ( 3.3ohm 10W ) o/c , Q801 ( STR5412 ) , D805 ( 1N4937 s/c.
14-09-04
Hinari
CT14 VT
V20
0
Dead, relay operates at sw on with short squeal from EHT
Going into prot mode - D485 9v1 zener leaky
14-09-04
Hinari
CT15 ST200 VT
V20
Bright blank screen , sometimes clears if left on
C629 100uF 25v oc
14-09-04
Hinari
HT
V20
dead with whistle
Q402 lop tr s/c 2SD1555; C909 47µ 25v. HT = 115v
14-09-04
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