I have a Onkyo TX-DS989 AV receiver and I lost my sound out of my left and right front speakers. I have tried speaker configuration and calibration with no luck. Any help in solving this problem would be great!
You didn't state it but I assume the other channels are functional?
The auxilliary channels are generally lower power and may even be serviced by a different voltage than the main amps.
If it is so designed, you may have something as simple as a blown fuse for the main amp supply.
If the aux. channels are equal in power, the power supply may still be dividing the load so a fuse still could be at fault.
The unit could also use integrated power amplifiers in which case, if two channels are operating from a single module it could be a module failure.
I don't see much chance of anyone repairing this system without examining it in the first person.
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