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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: 49
Amstrad
CTV
2000
Dead
Check C509 for o/c Or R726 ( 1k ) o/c
14-09-04
Amstrad
CTV
2000
Distorted sound.
R313 high in value.
14-09-04
Amstrad
CTV
2000
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
CTV
2000
Field top foldover
C720 4µ7 160v
14-09-04
Amstrad
CTV
2000
Int going off.
LOPTX arcing.
14-09-04
Amstrad
CTV
2000
Reduced height/foldover
C720 4µ 160v o/c
14-09-04
B & O
MX
2000
Bright on lh side, dark on right then goes completely dark
Dry joints pin 1 LOPTx
14-09-04
B & O
MX
2000
Dead TEA2026 defective
LOPTx desroys chip so replace as well & replace or fit 15v zener between o/p pin 7 chip & chassis
14-09-04
B & O
MX
2000
Faint pic after LOPTx replacement
RL25 burnt
14-09-04
B & O
MX
2000
Slightly off tune at sw on
Back up battery on its way out - if no startup after replacement s/c battery terms momentarily
14-09-04
B & O
MX
2000
White hor line 3-5 cm tall
No 200v on crt base - dry joints pin 9 LOPTx
14-09-04
B & O
MX
2000
3119
St/by only (dot in display)
124v HT present no line drive as RP10 1R2 hi res
14-09-04
B & O
MX
2000
31XX
Bright raster with no sound.
RL28 1.5ohm dry.
14-09-04
B & O
MX
2000
31XX
INT FIELD COLLAPSE
DRY JOINTS ON EW DIODES OR ON CL12
14-09-04
B & O
MX
2000
31XX
No picture.
Drys on CRT base.
14-09-04
B & O
MX
2000
31XX
No sound.
6Mhz coil LD40 o/c.
14-09-04
B & O
MX
2000
31XX
Standby - no standby light.
RP43 0.47ohm o/c , CR67 ( 1 , 000uf ) on microcomputer PCB8.
14-09-04
Fidelity
CTM
2000
R
Loss of sync when heated
C100 33µ 250v HT res cap (HT still measured ok at 119v)
14-09-04
Fidelity
CTM
2000
T
Tripping
10nf lop tuning cap burn up & BU508A lop tr leaky
14-09-04
Fidelity
ZX
2000
Channels - will not go to ch 3.
IC ML923 tuning chip.
14-09-04
Fidelity
ZX
2000
Dark picture.
C412 ( 100pf ) leaky.
14-09-04
Fidelity
ZX
2000
dead
Pulsing 7v at ZD5 12v zener; R801 18k 8w o/c
14-09-04
Fidelity
ZX
2000
Dead - blowing chopper transistor.
R826 ( 39R ) goes high.
14-09-04
Fidelity
ZX
2000
Dead - fuse's ok.
Droper R801 ( 18k ) o/c , chopper transistor , D24 ( RGP15J )
14-09-04
Fidelity
ZX
2000
Dead - tripping.
IC TDA2581.
14-09-04
Fidelity
ZX
2000
Frame - foldover & lack of height.
C706.
14-09-04
Fidelity
ZX
2000
Frame collapse.
IC9 ( TDA1170S )
14-09-04
Fidelity
ZX
2000
Intermittent no signals.
Leak from R121 lower leg touching print.
14-09-04
Fidelity
ZX
2000
No colour
IC6 ( TDA1365 )
14-09-04
Fidelity
ZX
2000
No pic - sound ok
Ai volts low - 10n 2kv decoupler leaky
14-09-04
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