GRUNDIG CUC7301/3 Repair Tips




Search: CUC7301/3 GRUNDIG
Results 4
MakeModel Ch.SymptomProblem SolutionSolutionBy:
Grundig CUC7301/3
Power supply blownThis is often caused by a dry joint at C669 in the snubber network but also check the mains bridge rectifiers reservoir capacitor 47uF, 385v for o/c, this item is not included in the ususal p.s.u repair kits and if not checked may result in a repeat blow up !
Grundig CUC7301/3
Mains fuse S1600 2.5A blows int1N4007 mains rect diode, also check IC630, T665chopper tr, zener D663, R661220R,Caps C661/663/656 & 667
Grundig CUC7301/3
Dead after dry joint C669 caused havocT665 MJF18004C chopper s/c; IC630 µC3842N/AN; D621-4 1N4007; R661 220R; D663 3v6 zener; CD651 ZD18v; D667 BA157 leaky.
GrundigCUC7301/3
Dead - PSU blownCaused by dry joint C669 - repair kits available from SEME or CHS also check C626 47u 385v for o/c