Schematics 4 Free
Service manuals, schematics, documentation, programs, electronics, hobby ....
◦
register
◦
send pass
S
earch
B
rowse
U
pload
W
anted
D
atasheets
C
hassis2model
R
epair tips
F
ulltext search
C
ables & Connectors
R
epair tips
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: 534
Grundig
CUC3400
No chan change when cold - display changes ok tho'
Dry joint pin 15 tuner/if socket
14-09-04
Grundig
CUC3400
No sound
C266 1000µ 25v s/c; R367 8R2 safety res o/c
14-09-04
Grundig
CUC3400
No start up - ticks
C653 4n7 connected to pin 15 of power chip u/s
14-09-04
Grundig
CUC3400
No start up with ticking
HT at chopper coll - C653 4n7 connected to pin 15 power chip u/s
14-09-04
Grundig
CUC3400
Poor purity & focus.
C433 ( 1 , 000uf , 25v )
14-09-04
Grundig
CUC3400
Poor R/C response
R1212 33R missing in sensor pcb
14-09-04
Grundig
CUC3400
Startup - No s/up - ticking from transformer.
C653 ( 4.7nf ) connected to pin 15 of IC.
14-09-04
Grundig
CUC3400
tripping
set ht pot R637
14-09-04
Grundig
CUC3400
Tripping comes on if adj line frequency down.
C653 ( 4.7u f )
14-09-04
Grundig
CUC3490
Dead
o/c HT fuse; s/c chopper tr; sus dry joints pin 5 of daughter pcb
14-09-04
Grundig
CUC3490
Dead - chopper tr s/c & fuse o/c
C667 2µ2 (2 caps) dry joints or low cap
14-09-04
Grundig
CUC3490
Dead - chopper tr s/c, HT fuse o/c
Dry joints pin 5 daughter board
14-09-04
Grundig
CUC3490
dead no line drive or ht
TR651 mains tfmr pins 1-15 o/c, pins 15-17 s/c
14-09-04
Grundig
CUC3490
Field fault - non lin with top missing
Pin 2 field chip only 12v (24v) C411 1000µ 50v supply smoother u/s
14-09-04
Grundig
CUC3490
Field non lin
C411 1000µ 50v supply to fop chip leaky
14-09-04
Grundig
CUC3490
No pic - sound ok
Check A1 volts present on crt base - if not sus leakagein socket
14-09-04
Grundig
CUC3490
No sound
TDA4480 sound chip
14-09-04
Grundig
CUC3490
No sound
TDA448C IC sound chip
14-09-04
Grundig
CUC3490
No sound
R367 o/c & C366 s/c (audio o/p stage supply)
14-09-04
Grundig
CUC3500
DEAD HT LOW AT 80v ( 196v )
D635 SC
14-09-04
Grundig
CUC3500
No sound/vis - +C volts low at 80v instead of 196v
D635 BAT86 s/c
14-09-04
Grundig
CUC3500
NO SOUND-VISION
CHECK D635 ( BAT86 ) SHORT
14-09-04
Grundig
CUC3600
breathes with brill
Tripler/focus unit u/s
14-09-04
Grundig
CUC3600
Broad white vert bar & SECAM light on
BU508A LOPTr overheating. TDA8140 chip faulty - driving it at twice freq
14-09-04
Grundig
CUC3600
No pic - dim vert band
Check loptr base wfm - if low or twice normal speed check C507 100µ & IC550 TDA8140
14-09-04
Grundig
CUC3600
No pic - pic blanked
Check supplies & sandcastle pulse. Brill & contrast cont volts at pins 2 & 16 TDA8442 IC350 - if low & won't increase TDA8442 is sus
14-09-04
Grundig
CUC3600
No picture - EHT Ok.
If pins 2 & 16 do not increase if brit/cont is adj IC350 TDA8442.
14-09-04
Grundig
CUC3600
NO PICTURE JUST DIM VERTICAL BAND ON SCREEN
C507 100uF OR IC550 TDA8140
14-09-04
Grundig
CUC3800
Dark on left, bright on RH side
C2582 1µ faulty - lum signal decoupler to pin 15 TDA3505 chip
14-09-04
Grundig
CUC3800
EW fault aft tripler replacement
R571 4R7 & IC555 E/W chip
14-09-04
page:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
FB
-
Links
-
Info / Contacts
-
Forum
-
Last SM download : Suzuki SX4
script execution: 0.01 s