Anybody got any studiomaster schematics?

[Twanage]

Hi guys,

I'm repairing a studiomaster powerhouse 708 powered mixer. It keeps displaying *** warning left channel amplifier overheating ***. However the left amp is not overheating, and the output devices test ok.

Neither power amp produces sound, but I think the problem lies earlier in the signal chain, I've no schematic to probe the more complicated sections (the FX parts of the board, etc)

I discovered a bad ribbon cable and a faulty summing amp which are now fixed.

Does anybody have a schematic for this desk?

Thanks in advance,
Ro.

[oc disorder]

http://www.studiomasterarchive.com/
This looks reasonable
37. Powerhouse Vision 708/712 series
All listed owners manuals are available for $20 (US Dollars) each.
and no I don't get any commission !

[Twanage]

Hi OC,
Thanks for that. No reply from them so far though...