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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: 19
Amstrad
CTV20
0
No sound or picture
R726 ( 1ohm , 1W ) O/C
14-09-04
Amstrad
CTV20
00
Dead
Check C509 for o/c Or R726 ( 1k ) o/c
14-09-04
Amstrad
CTV20
00
Distorted sound.
R313 high in value.
14-09-04
Amstrad
CTV20
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
CTV20
00
Field top foldover
C720 4µ7 160v
14-09-04
Amstrad
CTV20
00
Int going off.
LOPTX arcing.
14-09-04
Amstrad
CTV20
00
Reduced height/foldover
C720 4µ 160v o/c
14-09-04
Amstrad
CTV20
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
Beon
CTV20
01R
Dead.
R109 ( 220ohm ) high or o/c.
14-09-04
Beon
CTV20
01R
Slow to come on.
R109 ( 220ohm ) high or o/c.
14-09-04
Beon
CTV20
01R
Squealing from PSU.
R109 ( 220ohm ) high or o/c.
14-09-04
Beon
CTV20
01T
Frame collapse.
R314 ( 3.3ohm ) o/c.
14-09-04
Fidelity
CTV20
T
No sound
No volts at pin 13 IC3 TDA8190 - R59 100k in series with vol cont hi res
14-09-04
Goodmans
CTV20
XRT
Contrast weak
TDA3562A pin 6 volts low at 1.3v & doesn't vary - R414 33k o/c
14-09-04
Goodmans
CTV20
XRT
Dead
CHECK 2R2 SURGE LIMITER R313
14-09-04
Goodmans
CTV20
XRT
Dead
R313 2R2 surge lim o/c
14-09-04
Soundwave
CTV20
01
Top foldover
C267 4µ7 160v
14-09-04
Soundwave
CTV20
03R
Childlock removal
switch on and with the key symbol on the screen, simultaneously press program+ and program- on the front control panel the lock disappears until you next set a pin.
14-09-04
Soundwave
CTV20
03R
Dead with smoking
C590 faulty due to cracks around pin 4 LOPTx
14-09-04
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