schematic for a Stewart PA100B

Jim Pitman · From: Waterbury Ctr. VT 05677 USA

I'm trying to fix a Stewart PA100B. The company closely guards its designs apparently. I can't even get them to answer an e-mail

Does anyone have a schematic?

Jim

Darvin Willhoite · From: Roxton, Tx. USA

I never had any luck with email either, I had to call them.
_________________
Darvin Willhoite
MSA Millennium, Legend, and Studio Pro, Reese's restored Universal Direction guitar, a restored MSA Classic SS, several amps, new and old, and a Kemper Powerhead that I am really liking. Also a Zum D10, a Mullen RP, and a restored Rose S10, named the "Blue Bird". Also, I have acquired and restored the plexiglass D10 MSA Classic that was built as a demo in the early '70s. I also have a '74 lacquer P/P, with wood necks, and a showroom condition Sho-Bud Super Pro.

Buddy Castleberry · From: HAWKINSVILLE GA USA - R.I.P.

i hace one not working
not many will or can work on them
at $150 beanch price at stewart
its not worth having them fixed

Jim Pitman · From: Waterbury Ctr. VT 05677 USA

I called Stewart and go them to e-mail me the service lit. You have to call first and then submit a follow up e-mail so they have a place to send it with little effort.
I took a brief look at it last night and it appears there's a problem in the the output driver area. Too much class A/B cross conduction is collapsing the swithching supply rails. I'll let you know what I find eventually.
Tx

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