Peavey XR600F eq problem

[slipnote]

I've got Peavey XR600F - the first four bands of the eq on power amp 1 are not working, the FLS indicators for those bands are lit up. Everything else is ok. Has anyone seen this combination of symptoms before?
Thanks!
Mike

[Jazz P Bass]

Sounds like either bad opamps (4560), bad coupling caps or the sliders took a hit.
Seeing as there are four in a row I would check the sliders real good.
The schematic for that one I do not have.
Post it if you have it.

[slipnote]

Thanks for the reply. Sliders all feel fine, move as smoothly as the others. I've attached a scan of the eq section schematic.

[Jazz P Bass]

I would compare the working sections with the non-working ones.
At the opamps, compare the output pins (1 & 7)
Check for proper voltages (Pin 4 & 8).

[slipnote]

Was hoping for a common component to explain all four going out, but doesn't appear to be the case. Will post back when I know more, thanks!

[erickson]

can you send me the xr600f eq.pdf file my unit amp is burnt up. need the service manual

[Jazz P Bass]

Your very best bet is to contact Peavey.
I do not have that complete file.

1 (877) 732-8391 (Consumer)

Peavey Electronics, Customer service

[erickson]

ok I will call them thanks for replying.

[erickson]

if you have just the power amp section that would be great