Would be much gratefull if you could help me on the Service manual of a AV-Amplifier Sony TA-AV480.
Voltages seem ok, relais active, but no sound at all.
Just uploaded Service Manual (ca. 7 Mb).
Good luck and sorry for delay
We just recently acquired this same amp and have the same problem. Did you get anything figured out for it? From what I understand, ours was originally bought in Germany making it hard to come up with any solutions.
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