Question about Infinity 475A Car Audio Amplifier
first I would advise you to tighten all of your ground and power connections. Then I would suggest that you expose the circuit board and start the amplifier warm up process, once the amp comes on I would use freeze spray to cool down various components in an attempt to find the component which has become thermally sensitive. Once you find the component I would suggest replacing it and the putting the cover back on the unit.
I hope this helps,
Posted on Dec 09, 2008
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