I am working on a sundown sfb 2000 however the issue I am having is that the rectifier got damaged 1640 s4 and I am unable to identify a replacement I checked the schematic for the taramp and I see that it uses positive and negative while the soundigital schematic shows it uses positive only. I just want to know the polarity of s3 and s4.
Regards,
Regards,
I know this is an old thread but in case anyone needs to know mur1620cta is the equivalent to the 1640 s4 rectifier. Every one of these amps ive seen has had this rectifier damaged. It is a (+ - +) rectifier.