Studer A800 audio noise from PSU

[Pat Maki]

Update - Put in the 2N5884 but that didn't get me the +15V.....voltage took a slow nosedive to 0....so swapped the LM340KC and that brought the +15V back. Looks like problem solved. Found a couple brittle regulator wires

 

[Brian Roth]

For future reference...

Beware of all the Molexes hiding behind the audio cards. You have to "fold down" that entire front section to get to them (almost a 2-man job to do that because the assembly weighs a jillion pounds).

Yellow Frako(?) axial electrolytics on various audio cards. They tend to short.

Bri