The unit wouldn’t power on when I got it, I replaced the two 3.15 amp fuses and instantly they blew as well. So I believe I traced the short to the two main filter caps (they have virtually 0 resistance in circuit). They don’t look in bad shape but I think that’s the issue. I was going to order some but I have too many projects so ready to pass it on to the next person. Also it looks like some of the fader covers are missing as shown. I even printed out the service manual which I’ll send along. Thats what I know, no further tests. FOR OBVIOUS REASONS SOLD AS IS.
eBay