Ampeg V4 bias problems

[Ace]

I am working on a V4, and it does not have enough bias voltage. The resistors on the board don't match my schematic. number wise. I also found some crispy resistors on the power amp board. They are unreadable. The board number is 210828-2. Any ideas?
Thanks
Ace

[Mark Black]

Try looking for a VT22 schematic. They are basically the same as the V4 (but combo amp instead of head), and you might find a revision that is closer to the circuit you have. I know I've seen a few different versions floating around...

Good luck!

[Raja]

Here is a link with the schematic plus.

http://www.ampegv4.com/schematics.php

[Ace]

Cool

Got it calmed down.
Thanks for the support.
Ace