Joe Jacobson Posted on Mar 30, 2010

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Adcom GFA-7400 power amp; 1 dead channel (thermal protect LED on)

I have an Adcom GFA-7400 multichannel power amplifier, but one channel is not working... How do I fix one channel dead (with thermal protection LED on)?... All 4 other channels work fine, but the Right (middle) channel is completely dead. (No sound output at all; just the thermal protect light, which stays on)... What can be done to fix it?... I have tried to find the service manual for this amp somewhere online, but to no avail... Please help!... Thanks!

1 Answer

Scott Frye

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Posted on Apr 17, 2010

Scott Frye

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Joined: Jan 08, 2008

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Hi...

I've contacted ADCOM before and they sent a pdf of the electricals

http://www.adcom.com/default.aspx

also try:

www.stereomanuals.com

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GFA-7400 5-Channel Amplifier

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Sir, how do I change the power input of my Adcom GFA 555 from 120v to 230v. The amp is dual voltage rated. Thanks.

Adcom GFA-5500 2-Channel Amplifier

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