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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: 212
Akai
CT2
13
7
Field scan only I"
No 33v via R442 - 5R16 8k2 o/c
14-09-04
Akai
CT2
13
7UKT
No sound except hiss - ok through scart
when a 6Mhz resonator was fitted in vacant place 30F1 sound ok
14-09-04
Akai
CT2
13
7UKT
Vision buzz
Remove digital transistor 9tr9
14-09-04
Alba
CTV7
13
Dead
Startup resistor R108 270k
14-09-04
Alba
CTV7
13
Lines at top of pic
C267 4µ7 160v leaky
14-09-04
Alba
CTV7
13
No pic or EHT - sound normal
No line drive out of TDA4505E pin 26. Wire link beside line preset pot s/c the pot - moved link & now ok
14-09-04
Alba
CTV7
13
No pic sound ok
HT at lop tr but not at driver tr EM202 line dr tfrmr o/c winding
14-09-04
Alba
CTV7
13
Small pic - HT correct at 105v
C302 in line stage
14-09-04
Contec
KT8
13
5
Bright pic with fb lines
R406 A1 control no effect - R474 390k on crt base o/c
14-09-04
Contec
KT8
13
5
dead
R504 68k in psu o/c
14-09-04
Contec
KT8
13
5
Dead
R501, R502 330k & R503 1M faulty
14-09-04
Contec
KT8
13
5
Dead - fuse's ok.
Fuse ok - R501 or R502 ( both 330k ) o/c.
14-09-04
Contec
KT8
13
5
Field lin problem
C336 220µ 50v
14-09-04
Contec
KT8
13
5
No luminance.
Poor plug connection for luma on CRT base panel.
14-09-04
Contec
KT8
13
5
Snowy pic
SAWF int or dry jointed
14-09-04
Dansai
93
13
A
No sound
Invisible dry joint in audio O/P stage
14-09-04
Decca
13
0
Channel - change intermittent.
Focus spark gap on CRT base.
14-09-04
Decca
13
0
Dead.
C816 ( 100u f ) o/c.
14-09-04
Decca
13
0
Faint picture - sound ok.
Caps fitted in error in pos R226 , R244 , R251.
14-09-04
Decca
13
0
Flyback - lines on bright picture.
Change R436 & check C427
14-09-04
Decca
13
0
Green picture - intermittent.
100k resistors on crt base.
14-09-04
Decca
13
0
Grey scale varying.
Check R226 , R244 , R251 ( 100k ) may be high.
14-09-04
Decca
13
0
Standby - Going into when changing channels.
Standby transformer o/c winding.
14-09-04
Decca
13
0
Tripping
R816 100R o/c in psu
14-09-04
Decca
13
0
Tripping
R186
14-09-04
Decca
13
0
Tuning - intermittent on some ch only no sigs
RM17 ( 560k ) high.
14-09-04
Decca
13
0
Tuning - no signals - snow.
RM17 ( 560k ) o/c.
14-09-04
Decca
13
0
Tuning - no signals.
BF959 ( IF pre amp ) o/c.
14-09-04
Decca
13
5
Tuning - drifting off tune when warm.
R68 ( 33k ) going high.
14-09-04
Fidelity
WSTV3
13
2NF
Dead - LOPTr s/c - when replaced only low buzzing/no EHT
EHT lead s/c (has bleedere as'y fitted)
14-09-04
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