Looking for Help and Schematic Adcom GFA-5002 - diyAudio
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Old 31st March 2011, 05:35 PM   #1
diyAudio Member
Join Date: Mar 2011
Default Looking for Help and Schematic Adcom GFA-5002

First post here, looks like a great forum!

Picked up a Adcom GFA-5002 50W amp for $25 the other day "as-is". After cleaning up the literally hundreds of 0603 chip caps that somehow got inside (???!!), I fired it up. I can hear the power relay and muting relay (?) click, red power light comes on, no other lights, but no output. +/- 40V on the rails, all fuses look good. No obvious signs of torture or distress (in fact it looks quite nice).

Does anyone have a schematic for this? I hate to cough up $20 to Adcom for a schematic of 13 year old kit.

And if anyone experienced with these can offer up suggestions on what to look at first, I'd appreciate it.

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