Summit Audio MPC-100A

[ilfungo]

Hi
I need a little help.
I'm searching Summit Audio MPC-100A schematics.
I've a strange problem:
The VU meter work well for output but sometimes do not work in GR mode .
the problem is really casually and it's not connected in any way with the unit temperature...
THANKS!!!

 

[buildafriend]

Have you tried tracing back from the VU meter and looking at what's associated with it? Does it come from any switching circuits that look blown or falling out? Are there calibrations you could check or perform? Is the unit actually compressing?

 

[pucho812]

Can you zero the meter in gain reduction mode?  Can you confirm the unit is compressing?

 

[ilfungo]

Yes the unit work great and the problem is sporadic...
It's only gr meter problem...
thanks

 

[ilfungo]

???

 

[mjrippe]

Contact Summit, sign an NDA, they send you schematics.

 

[ilfungo]

Thanks I will try!