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Adcom GFA-535 Settings
Adcom GFA-535 Settings
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Old 16th August 2009, 07:15 PM   #1
Ardvaark is offline Ardvaark  United States
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Default Adcom GFA-535 Settings

I've picked up a working Adcom GFA-535 amplifier. It seems to have two issues where I need assistance. The dc offset in the left channel measures 24mv while the right channel measures 37mv. I need help in where to check for bias and how to possibly adjust both the dc offset and bias. Also I've noticed after two hours the right side of the unit gets about 60% warmer than the left side.

Thank you,
Ardvaark
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Old 16th August 2009, 07:51 PM   #2
nigelwright7557 is offline nigelwright7557  United Kingdom
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The right side has a higher dc bias so is sinking more current.

However, those dc biases are pretty tiny, I personally wouldnt worry about them.
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Old 16th August 2009, 08:10 PM   #3
Ardvaark is offline Ardvaark  United States
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Quote:
Originally posted by nigelwright7557
The right side has a higher dc bias so is sinking more current.

However, those dc biases are pretty tiny, I personally wouldnt worry about them.
If it is affecting the quality of the sound or the equal playback of the music to any degree, then I am worried about it.
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