[sdiy] Anyone seen AX-73 or VX-90 schematic?

[Bob Weigel]

I see a lot of owners manual links... I have one that gets stuck in the 
auto-tune mode when you hit the button and it sounds like noisy crud 
when you play a sequence to it.  Probably why it won't tune.  I imagine 
it's a problem with whatever is mixing the CEM3394 outs and I can 
probably figure it out tracing things fairly easy but wondered if anyone 
had on top where one might get schematics.  I put my ax73 on ebay and 
I'm going to try to fix the module since I dont't really need another 
big keyboard in the way here :-). -Bob