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PostPosted: 22 Jul 2010, 13:54 
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Joined: 22 Jul 2010, 13:37
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I have a brand new Adcom 7 channel amp GFA-7607. My wife bought it for my birthday, brand new in a sealed box as a surprise off of ebay. I set it up, watched one movie with my daughter, monsters inc, sounded awesome with a sub, then I tried to install my surrounds (without turning the amp off) and the audio cut out. Main fuse is good. Called Adcom and was told that it can not be fixed under warranty because it was not bought from a authorized dealer. Adcom thinks that I hit the back of the chassis of the amp with the surround speaker wire when adding the 6th and 7th speaker which is quite possible. Adcom informed me that they think there is 3 internal fuses and that anyone of the 3 can be blown. i opened the amp up and found a fuse on the main circuit board that tests good but don't see any other fuses. Can anyone tell me how many internal fuses there are total in this amp? And most importantly where are they all located? I don't have a schematic and am having a very difficult time trying to find one on line. thanks, RP


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PostPosted: 24 Jul 2010, 13:05 
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Joined: 28 May 2008, 21:53
Posts: 4586
Location: Winnipeg, CANADA
It sounds like you may have shorted the speaker outputs. A schematic or service manual will have the info you need. You should be able to get one from Adcom.

FYI - Adcom GFA-7607 question(s). Perhaps that fellow tracked down a schema or can help you locate the fuses.
Cheers

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