Question about NAD T763 Receiver
My nad T763 currently 11mnths old decided to loose output on both main speakers and rear speakers, but centre and sub output still work. but! centre and sub are either flatout or nothing. volume is flat out regardless of volume position unless it's at infinite db, and as soon as you move it 1 step of infinite it goes flatout again. protection circuit doesn't cut in and all modes work as normal. centre and sub obviously only work in surround modes. any clues anyone?
Hi there. Are you familiar with board level repair for such products ? Your problem is most likely hardware. Either some of the final output transistors are fried, or it's a dsp problem, a regulator, a diode, a transistor in the circuit.. it could be a lot of things. But if everything was working fine and it quit someday without a change in the system's setup, it really looks like an hardware issue ! Do you have a way in the manual, that sets factory defaults, a kind of reset ? A lot of such units do have that. Try to unplug/interchange speakers as well, a shorted speaker could make the amp go nuts as well, but i wouldn't bet on it. Still, i'd check that out. Hope that helps ! cheebster.
Posted on Jun 26, 2007
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Posted on Jan 02, 2017
Tips for a great answer:
Nov 12, 2013 | NAD C320 2-Channel Amplifier
get another basic mono stereo amplifier to power the centre speaker on its own however
if your main amplifier does not have a pre out connector for a centre speaker
you will have to change the volume independently on both amplifiers
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