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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: 442
Decca
130
Grey scale varying.
Check R226 , R244 , R251 ( 100k ) may be high.
14-09-04
Decca
130
Standby - Going into when changing channels.
Standby transformer o/c winding.
14-09-04
Decca
130
Tripping
R816 100R o/c in psu
14-09-04
Decca
130
Tripping
R186
14-09-04
Decca
130
Tuning - intermittent on some ch only no sigs
RM17 ( 560k ) high.
14-09-04
Decca
130
Tuning - no signals - snow.
RM17 ( 560k ) o/c.
14-09-04
Decca
130
Tuning - no signals.
BF959 ( IF pre amp ) o/c.
14-09-04
Decca
135
Tuning - drifting off tune when warm.
R68 ( 33k ) going high.
14-09-04
Decca
140
Colour - dropout - intermittent.
Q211 & Q203.
14-09-04
Decca
140
dead
no 18v supply - D811 dry jointed
14-09-04
Decca
140
Dead
R805 390K OC.
14-09-04
Decca
140
Dead - after 5 mins.
C813 lead broken.
14-09-04
Decca
140
Dead - fuse f801 blown.
Q801 s/c , C425 ( 8.2nf or 8.6nf ) , Dry D811.
14-09-04
Decca
140
Dead - no 18v rail.
D811 check if lead is through board.
14-09-04
Decca
140
Dead with ticking/buzzing - HT low at 50v
C807 & 808 100µ 25v
14-09-04
Decca
140
Dead.
Crack in print between D805 & D802.
14-09-04
Decca
140
FIELD BOUNCE
POOR CONNECTION AT PIN 8 M501
14-09-04
Decca
140
Field bounce in Txt
Dry joint pin 8 connector M501
14-09-04
Decca
140
field collapse - no pic
R434 10R safety res in 25v feed to field chip o/c no other ff
14-09-04
Decca
140
Field roll with hold control at one end
R423 ( 2M2 ) o/c
14-09-04
Decca
140
Flickering LED display - no remote control.
DJ where connected to 5v line on display panel.
14-09-04
Decca
140
Flyback - lines on bright picture.
Change R436 & check C427
14-09-04
Decca
140
Frame - lack of height - field roll.
R423.
14-09-04
Decca
140
Int changes chan on its own
Focus spark gap
14-09-04
Decca
140
Int frame roll - preset up one end.
R423 ( 2.2R )
14-09-04
Decca
140
Int snowy pic
Q101 BF959 SAWF driver int
14-09-04
Decca
140
Int start up
R805 390k hi res also check R802 10k dry joints
14-09-04
Decca
140
Loud hum at sw on with no pic
C807, C808 & C810 100µ 25v
14-09-04
Decca
140
Loud hum at switch on.
C808 & C810 ( 100u f , 25v )
14-09-04
Decca
140
No functions - HT ok.
R817 ( 220R safety ) o/c.
14-09-04
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