Archive of the former Yahoo!Groups mailing list: Yamaha CS80

I flinched and the +8.5 rail got shorted to the -15 volt rail. My
+8.5 rail now reads about +3.5 volts. I tried replacing the Op-amp
with one I had lying around. That didn't work. I can't seem to figure
out what transistors are associated with the bad rail either.

Further inspection revealed that that my PSU is not the same as the
diagram that I downloaded off of the internet. Does anybody have
another schematic version for my CS-80 PSU? Mine is one of the
later models based on the temperature designations associated with the
module boards.

On another note, some of you folks were right about me screwing up the
solder job. I found one mistake so far.


-Mike