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
GRUNDIGCUC4400
Flickering/lines with pic breakupC2257 100n 63v in line osc
GRUNDIGCUC4400
Erratic line syncC2257 100nf 63v
GRUNDIGCUC4400
Chan changes & vol varies intIr detector tfms3300
GRUNDIGCUC41KT
Dead.D655 ( byw76 ) s/c.
GRUNDIGCUC41KT
Dead power supply workingTy40164 7812 oc
GRUNDIGCUC41B
Memory - no & intermittent display at sw on.Ic663 ( mc78ni5 ) 15v supply to ic2301 down to 10v.
GRUNDIGCUC41B
Memory - channel 1 & 2 losing memory.Ic2375 ( mcm2801 )
GRUNDIGCUC41B
Intermittent display at switch on & no memoryIc663 ( mc78ni5 ) 15v supply to ic2301 down to 10v.
GRUNDIGCUC41B
Intermittent colour when cold.Q2567 ( 4 , 43mhz xtal )
GRUNDIGCUC41/70
Tuner - snow on picture and no sound.Dj ic681.
GRUNDIGCUC41/70
Tuner - drift for 1st 10 minutes.If tda4426 , change c2237 to 22uf , if tda4427 change ic.
GRUNDIGCUC41/70
Standby - int going into standby.C642 ( 100u f , 10v ) intermittent o/c by tda4600.
GRUNDIGCUC41/70
Sound - no sound & snow on picture.Dj ic681.
GRUNDIGCUC41/70
If channel changed sometimes snow would appearCheck on/off switch momentary contacts
GRUNDIGCUC41/70
Frame collapse.D353 s/c.
GRUNDIGCUC41
Tuning drift with 33v down to 28vC2234 0µ1 sm cap in tuner/if leaky - across pins of tda5430
GRUNDIGCUC41
Tuning driftC2230 0µ1 surf mount in tuner leaky (across tda5430)
GRUNDIGCUC41
Tripping.R651 in series with set ht control o/c.
GRUNDIGCUC41
Sound no picture no line driveTda2595 us
GRUNDIGCUC41
Raster - white.R723 high or o/c.