Repair tips database, Service Manual free download,schematics,datasheets,eeprom bins,pcb,repair info for test equipment and electronics

Repair tips

Make	Model	Problem	Solution	Date

Found: 10
Grundig	CUC3490	Dead	o/c HT fuse; s/c chopper tr; sus dry joints pin 5 of daughter pcb	14-09-04
Grundig	CUC3490	Dead - chopper tr s/c & fuse o/c	C667 2µ2 (2 caps) dry joints or low cap	14-09-04

Grundig	CUC3490	Dead - chopper tr s/c, HT fuse o/c	Dry joints pin 5 daughter board	14-09-04
Grundig	CUC3490	dead no line drive or ht	TR651 mains tfmr pins 1-15 o/c, pins 15-17 s/c	14-09-04
Grundig	CUC3490	Field fault - non lin with top missing	Pin 2 field chip only 12v (24v) C411 1000µ 50v supply smoother u/s	14-09-04
Grundig	CUC3490	Field non lin	C411 1000µ 50v supply to fop chip leaky	14-09-04
Grundig	CUC3490	No pic - sound ok	Check A1 volts present on crt base - if not sus leakagein socket	14-09-04
Grundig	CUC3490	No sound	TDA4480 sound chip	14-09-04
Grundig	CUC3490	No sound	TDA448C IC sound chip	14-09-04
Grundig	CUC3490	No sound	R367 o/c & C366 s/c (audio o/p stage supply)	14-09-04

page: 1