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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: 534
Grundig
CUC120
Startup - no start up.
IC TDA4600 plus check drys on L631 off base of chopper Tx.
14-09-04
Grundig
CUC120
Startup - takes a long time to come on.
C626 reservoir cap.
14-09-04
Grundig
CUC1822
Hor dashed magenta lines superimposed on pic
Check for dry joints/elect caps in "feature" box
14-09-04
Grundig
CUC1842
Focus poor
Replaced tripler & 2 x 1n5 6kv caps on dynamic focus board
14-09-04
Grundig
CUC1882
EHT comes up at sw on then reverts to st/by
Dry joint at fop scan coil plug in middle of pcb
14-09-04
Grundig
CUC20/30
Blue screen only
dry joints IC61050, IC61060, & IC61040 regs
14-09-04
Grundig
CUC2000
line collapse
could be o/c winding N & L on Ipsalo tfmr
14-09-04
Grundig
CUC2030
E/W poor
TDA8350 FOP chip
14-09-04
Grundig
CUC2030
Hor black & white lines & no tuning
Sound MSP chip faulty - causing corruption to data lines
14-09-04
Grundig
CUC2030
Hotel mode disabling
Sw set off at main Sw. Press "I" button & Sw on. In service menu change Hotel to "off"
14-09-04
Grundig
CUC2030
Line collapse
dry joint scan coil plug & R55006 5R6 1/2w o/c causing no E-W
14-09-04
Grundig
CUC2030
Menu access & child lock
hold the vol+ button on the remote and switch on the tv via the on/ off switch.this results in the language menu coming up. if you then press ok the set goes straight to auto tune mode. if you then press text this stops auto tune and allows you access to all menus.entering the code 7038 cancels lock?
14-09-04
Grundig
CUC2030
Parental lock
hold the vol+ button on the remote and switch on the tv via the on/ off switch.this results in the language menu coming up. if you then press ok the set goes straight to auto tune mode. if you then press text this stops auto tune and allows you access to all menus.entering the code 7038 cancels lock
14-09-04
Grundig
CUC2031
Set jumps from Chan 1 to AV3 int on its own
Check for arcing LOPTx
14-09-04
Grundig
CUC2032
Dead
BUZ90 SMPS T60006 s/c & fuse SI60001 1.6S o/c - caused by R60001 270k & R60007 120k hi res also TDA4605-3
14-09-04
Grundig
CUC2040
Tripping
LOPTx (29221-029.52A) s/c, Seme HR6574 15.42 UKP.
14-09-04
Grundig
CUC2058
Dead
TDA4605, 270k 1/2w res & chopper FET IRFPC50 (used 2SK2078 in lieu) - all in PSU
14-09-04
Grundig
CUC2058
Dead with blackened fuse
p. supply FET IRFPC50 was s/c due to 270k res in psu o/c, also replaced TDA4605-3 as a precaution
14-09-04
Grundig
CUC2058
No sound
Both audio o/p IC`s TDA7265 & 2.5A wickman fuse o/c
14-09-04
Grundig
CUC2058
No sound/pic - could be int
o/c print under small vert panel with 10 pins behind tuner
14-09-04
Grundig
CUC2058
St/by only
Tripler - cheaper from CPC
14-09-04
Grundig
CUC2059
Dead - chopper tr T60006 blown
14-09-04
Grundig
CUC2080
No power
IRFPC50 s/c and 270K (connected to pin 2 of TDA5605-3
14-09-04
Grundig
CUC2080
turns on but goes to SB after a second
TDA8350Q + R54012 1Ohm +R50011 33ohm.
14-09-04
Grundig
CUC2131
No power
R60502 (3M Ohm 2watt) open circuit
14-09-04
Grundig
CUC220
Dead - intermittent.
R646 ( 270k ) on PSU.
14-09-04
Grundig
CUC220
Display - intermittent incorrect channel disp
IC663 ( 5v reg )
14-09-04
Grundig
CUC220
Excess col & brightness when heated
OK when Txt pcb dis'd - left it this way
14-09-04
Grundig
CUC220
Frame collapse.
R2779 ( 18k ) o/c remove to check.
14-09-04
Grundig
CUC220
Frame distortion.
IC TDA1770 if used , D2761 ( SKE4G1/04 ) , R2761 ( 6.8ohm , .75W )
14-09-04
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