Pioneer VSX-922 UPC error

[bermo96]

Hello,
I've a receiver Pioneer VSX-922 but unfortunately I can't use it anymore. The MCACC red led is blinking and I can't power up the device. When I try a reset with the Tune down button and the Multi-Zone button, I get the message UPC on the screen for 2 sec and then the receiver shutdown and get back to the MCACC led.

Does someone know what the UPC message stand for ?

Thank you

[bermo96]

Re: Pioneer VSX-922 UPC error

Does UPC mean microprocessor ?

[budwich]

Re: Pioneer VSX-922 UPC error

likely. Have you tried disconnecting everything from the unit? How did the unit get into this state / history of operation that caused the problem?

[R_J]

Re: Pioneer VSX-922 UPC error

MCACC red led is blinking

You likely have a bad output stage and the diagnostics is detecting DC on one of the outputs.

[lotas]

Re: Pioneer VSX-922 UPC error

Service manual:

[bermo96]

Re: Pioneer VSX-922 UPC error

likely. Have you tried disconnecting everything from the unit? How did the unit get into this state / history of operation that caused the problem?

Everything is disconnected, I got it used and cheap as a working unit.