GRUNDIG TV Repair: Common Faults and Solutions.


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GRUNDIG Repair Guide: Common Issues and Fixes

Brand Model Fault Detailed Problem Solution By
GRUNDIGCUC2201
Int trips at sw onR637 1k set ht pot
GRUNDIGCUC2200
Small pulsating raster.Di614 ( 75v zenor ) in cutout circuit rev leak around 100k
GRUNDIGCUC220
Startup - switch on problems & hum.Relay contacts jammed o/c.
GRUNDIGCUC220
Standby- intermittent going into standby.Ic663 ( 5v reg )
GRUNDIGCUC220
Standby - intermittent going into standby.Change r647 to ceramic.
GRUNDIGCUC220
Shutdown - intermittent switching off.Dry r646 ( 270k ) , tda4600 , replace ht pot r647 ( 2.5k )
GRUNDIGCUC220
Pulling/rollingC2216/2221 1µ 63v in if can by tda5500 chip
GRUNDIGCUC220
No vision with raster and sound.T2533 , adj control sb , r2536 , c2536 , d2536 , d2532
GRUNDIGCUC220
No pic at switch on - looks like its off tuneC2221 ( 1uf 63v ) in tuner/if unit.
GRUNDIGCUC220
Lack of frame at bottom when cold.C2768 ( 100uf ) on deflection pcb.
GRUNDIGCUC220
Interference at sides.Ic tda2595 sync/line osc ic.
GRUNDIGCUC220
Int start upTda4600
GRUNDIGCUC220
Int start upC631 100uf 40v , c633 220uf , c647 1uf , c642 100uf + r646 270k
GRUNDIGCUC220
Horizontal shaking.Tuner/if dry joints , check the electrolytics with freezer
GRUNDIGCUC220
Goes straight off at sw onOdd characters in display - ht = 180v (109v) ht pot int
GRUNDIGCUC220
Frame distortion.Ic tda1770 if used , d2761 ( ske4g1/04 ) , r2761 ( 6.8Ω , .75w )
GRUNDIGCUC220
Frame collapse.R2779 ( 18k ) o/c remove to check.
GRUNDIGCUC220
Excess col & brightness when heatedOk when txt pcb dis'd - left it this way
GRUNDIGCUC220
Display - intermittent incorrect channel dispIc663 ( 5v reg )
GRUNDIGCUC220
Dead - intermittent.R646 ( 270k ) on psu.