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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: 242
Amstrad
CTV1400
Sound going low - int.
Adjustable capacitor on sound IF subpanel.
14-09-04
Amstrad
CTV1400
Weak contrast
R410 120k at pin 2 lopt
14-09-04
Amstrad
CTV1400 (new)
Cogged pic
C517 33µ 160v between chopper & lop tfmrs
14-09-04
Amstrad
CTV1400 new
Sound low & dist
C751 470µ 35v in o/p to spkr
14-09-04
Amstrad
CTV1400T
Dead after C508 47µ & C509 10µ went o/c in PSU
Q504 2SC5287; Q503 BC547B; Q502 BC557B; R529 2R2 3W; now tripping - Q507 BUT11AF s/c; Q402 BU2508DF
14-09-04
Amstrad
CTV1400T
St/by only
R520 2k7 1/2 watt; Q507 But11a; Q506; C509 10 ufd; C508 47 µ
14-09-04
Amstrad
CTV1401
Buzz on sound/caption buzz
adj if o/p coil in tuner or replace tuner
14-09-04
Amstrad
CTV1401
Dist sound
R356 10k o/c
14-09-04
Amstrad
CTV1401
Interference bands across screen - affects other tvs in w/s
Mains sw
14-09-04
Amstrad
CTV1401
Tuning - drift.
Tuner unit.
14-09-04
Amstrad
CTV1401
Weak & distorted sound.
R356 ( 10k ) o/c
14-09-04
Amstrad
CTV1409
Frame jitter.
R427 ( 220k ) replace with 180k
14-09-04
Amstrad
CTV1410
Dead
R302 6k8 o/c
14-09-04
Amstrad
CTV1410
Dead
o/c relay contacts RLY901
14-09-04
Amstrad
CTV1410
Dead - chopper tr 2SD1545 blown
Check Q902 2SB774, ZD902 9v1 zener
14-09-04
Amstrad
CTV1410
Field roll on bright scenes
C304 2µ2
14-09-04
Amstrad
CTV1410
Height reduced
R302 6k8 hi res
14-09-04
Amstrad
CTV1410
Int frame collapse.
Change C401 ( 1nf ) , C403 ( .1uf ) , C404 ( 0.022uf ) , C405 ( 1nf )
14-09-04
Amstrad
CTV1410
Low emission tube symptom
R650 & R651 4k7 hi res
14-09-04
Amstrad
CTV1410
No chan store
No -30v to eeprom - C602 10nF
14-09-04
Amstrad
CTV1410
No colour on picture - OSD colours Ok.
C322 ( 22nf ) low.
14-09-04
Amstrad
CTV1410
No or int no frame scan.
C403/4/5.
14-09-04
Amstrad
CTV1410
No pic - faint raster when A1s advanced
No scastle pulses pin 17 IC301 - R316 12k o/c
14-09-04
Amstrad
CTV1410
No sound or raster.
ZD301 ( 9.1zener ) s/c.
14-09-04
Amstrad
CTV1410
Vol at max, osd perm on, no tuning
MN1220 EEPROM - use Alba version (cheaper)
14-09-04
Amstrad
CTV1410 Onwa
Dead with HT low at 50v (112v)
No st/by relay, R632 33k pin 36 IC603 o/c
14-09-04
Amstrad
CTV1410 Onwa
Sw itself back on when in st/by - int
Flexing panel brought fault on - R920 & R302 were physically touching bypassing relay
14-09-04
Amstrad
CTV1410Onwa
Field cramp atbottom
R408 18k o/c
14-09-04
Amstrad
CTV1600
Field collapse
R709 22k o/c
14-09-04
Amstrad
CTV1600
Field collapse
Dry joint pin12 LA7800 timebase chip (12v supply)
14-09-04
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