GRUNDIG TV Repair: Common Faults and Solutions.


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Search: GRUNDIG
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GRUNDIG Repair Guide: Common Issues and Fixes

Brand Model Fault Detailed Problem Solution By
GRUNDIGCUC70KT
Line - cogging.C662 ( 600u f , 63v )
GRUNDIGCUC70KT
East west - poor.R571 o/c.
GRUNDIGCUC70KT
Dead.D661 ( ske4g2/06 ) o/c can use ske4f2/02
GRUNDIGCUC70KT
Bent verticals worse from coldC2731 100u 25v on line/field panel
GRUNDIGCUC70
Tuning - no tuning.C2020 in tuner & t2304 in tuning module.
GRUNDIGCUC70
Sound uncontrollable - full vol - may be intR2250 4k7 preset sound pot int
GRUNDIGCUC70
Snow on picture & no sound.Dj ic681.
GRUNDIGCUC70
Snow no pictureR2127 180r in if can
GRUNDIGCUC70
Reduced frame - with kink at bottom on sides.C2791 ( 2 , 200uf or 3 , 300uf )
GRUNDIGCUC70
Ragged vertsLine driver supply smoother 1000µ low cap
GRUNDIGCUC70
Pulling - esp bbc1 & vcr chan - txt scrolls sidewaysReplaced 2 x 1µ & 47µ caps in if/tuner unit near tda4442
GRUNDIGCUC70
Poor sync - sideways scrolling txtC2216 1µ; c2221 4µ7
GRUNDIGCUC70
Poor picture with crinkly verticals from coldCheck c2217 ( 10u f , 16v ) & c2221 ( 4.7u f , 25v ) in the tin if module.
GRUNDIGCUC70
Off with a bangS/c mains rect block bew 2.5a fuse
GRUNDIGCUC70
No soundR366 ( 82r ) o/c , c366 ( 1 , 000uf ) s/c.
GRUNDIGCUC70
No signalsDry joints ic681 reg on main pcb
GRUNDIGCUC70
No picture - 12v b+ rail missing.D689 ( 1n4001 ) o/c.
GRUNDIGCUC70
No linear frame - kink at bottom on sides.C2791 ( 2 , 200uf or 3 , 300uf )
GRUNDIGCUC70
No go - fuse blown.R661 ( 0.15Ω ) secondary side of chopper psu o/c , tda4600-2 , fuse.
GRUNDIGCUC70
No frame.Frame ic but also check c2758 ( 100uf ) & safety res o/c.