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Repair tips

Make	Model	Problem	Solution	Date

Found: 14
Grundig	CUC740	Chopper tr blows instantly	R633 27R o/c in base cct - also blew lop tr	14-09-04
Grundig	CUC740	Dead - chopper tr blows instantly at sw on	R633 27R o/c in base cct - also blew LOPTr	14-09-04

Grundig	CUC740	dead - comes on briefly when tapped	dry joints chopper tr and surroundings	14-09-04
Grundig	CUC740	Dead - S1644 1.25A fuse blown	T654 BU208A s/c - check for arcing at C634	14-09-04
Grundig	CUC740	Excess width	D572 SKE4G2/06	14-09-04
Grundig	CUC740	INT CUTOUT , GOING TO SBY OR DEAD	D671 5v SUPPLY	14-09-04
Grundig	CUC740	Int Dead	D671 BY299 in 5v supply int o/c	14-09-04
Grundig	CUC740	Int dead or int st/by	C633 100µ 25v	14-09-04
Grundig	CUC740	Int sound	Check if +G supply missing - if so check relay contacts	14-09-04
Grundig	CUC740	lines across screen - no sound	adj R2741 on Ablenkung pcb	14-09-04
Grundig	CUC740	No adj of vol,col,contrast etc	IC2335 MC144111 inside IF/Tuner can	14-09-04
Grundig	CUC740	Pulling/Rolling - weak sync	2 x 1µ & 1 10µ cap in IF module	14-09-04
Grundig	CUC740	Pulling/rolling with weak sync	replace 2 x 1µ caps & 1 x 10µ cap in IF module	14-09-04
Grundig	CUC740	Sound couldn't be reduced &"88" in display	MC144111 IC2335 on tuning pcb	14-09-04

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