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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: 21
Granada
C41
GS
5 CBP1748
Int sw on
Opto coupler int
14-09-04
Grundig
GS
C100
Dead - blowing 3.15 fuse - intermittently.
EHT cap arcing.
14-09-04
Grundig
GS
C100
Dead - blowing 3.15amp fuse.
EHT cap jumping across to degaussing coil.
14-09-04
Grundig
GS
C100
Dead.
R607 o/c , faulty thyristors , insulation in line o/p stage.
14-09-04
Grundig
GS
C100
Dead.
Di511 or C2502 ( 100u f , 16v ) on EHT control regel baust PCB.
14-09-04
Grundig
GS
C100
Frame - bottom foldover - cramping at top.
R2522 ( 2.2k ) goes high.
14-09-04
Grundig
GS
C100
IF EHT IS VERY HIGH
CHECK DI508 IS OPEN
14-09-04
Grundig
GS
C100
Line break up.
C2502 ( 100uf , 16v ) on EHT control regel baust PCB.
14-09-04
Grundig
GS
C100
No frame.
Di447 ( 1N4007 ) and/or TDA1170.
14-09-04
Grundig
GS
C100
R607 - repeated resoldering of R607.
Di2502 ( 4.7v ) zener.
14-09-04
Grundig
GS
C200
No results.
R607 o/c , R621 o/c , if goes agn few hrs later Di2502 4.7v
14-09-04
Grundig
GS
C200 Chassis
Arcing in picture. Reduced width with torn edges.
The HO Transformer has a built in fuse holder which houses a 50mA fuse. (connected in series with the high tension cable). Replace the fuse and clean the contacts.
14-09-04
Grundig
GS
C200 Chassis
Black screen, EHT at about 18 KVs.
Change Di511.
14-09-04
Grundig
GS
C200 Chassis
No sound or Picture, led displays not lit.EHT at 18KV.
C2607 in relay PCB Sced.Check also D334 and D335 in tuning module as in one case they were found to be Sced together with C2607.
14-09-04
Grundig
GS
C700
Int smeary flat picture.
Luma delay line leaky.
14-09-04
JVC
AV25
GS
1EK
Dead - no 146v supply
D2031 BY229-600 o/c
14-09-04
JVC
AV25
GS
1EK
Reverts to st/by aft I sec
removing eeprom type cat35c104hp allows set to run - eeprom faulty
14-09-04
JVC
AV25
GS
1EK & AV25S1EK etc
Dead - HT starts to rise then decays
D521 BY228 in EW cct
14-09-04
JVC
AV25
GS
1EK MX
St/by only
Dis pins 5 & 6 of EEPROM to check - if set powers up then EEPROM may be faulty (IC704 pt no CAT35C104HP)
14-09-04
JVC
AV28
GS
1EK
Electronic screwdriver
vsm >-< and the display button (the one above the menu botton left of the mute button) brought up the electronic screwdriver for height and vert posn
14-09-04
Sharp
66
GS
62H GA10
E/W poor & pic breathing
D624 SMD HDX00551BMZZ.
14-09-04
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