Fender Bassbreaker 45 Needed

[The Dude]

I've contacted Fender. Waiting for a reply. In the meantime, I thought I'd ask if anyone has a schematic for the Bassbreaker 45.
Thanks!

[Enzo]

That sounds familiar, did you search this board?

[The Dude]

Yes, I did and searched the interwebs. I certainly could have missed it somewhere, but came up empty.

[dmeek]

Here it is.

Bassbreaker 45 Service Manual.pdf

[The Dude]

Thanks much!

[The Dude]

That's an "interesting" mess. I was chasing lack of screen voltage controlled by a FET for power scaling. It ends up that if bias voltage is lost, they remove screen voltage for protection. So, now I'm chasing bias V. It looks like I have a shorted -12V regulator and a shorted shunt regulator in the bias circuit. I'd have had a heck of a time finding the problem without a schematic, so thanks again!

[The Dude]

By the way, the designer of this amp should be taken out behind the factory and shot. You have to pretty much tear down the whole amp to get at anything.