Have a Pioneer VSX-1021 that goes to MCACC flashing as soon as it is plugged in.
If I enter release mode, it powers on, the screen display is correct, but then it shuts down and goes back to MCACC after a few seconds. I can shut it down to standby (w/o flashing MCACC if I hit the power button as soon as release mode finishes the boot sequence).
Entering reset mode and executing a reset doesn't change this.
I am unable to enter service mode to see the error counts - Enter + Power button doesn't do anything, whether from normal standby or from MCACC flashing.
No DC voltage present on any speaker outputs.
Checked for shorts on all of the output transistors attached to the heat sink - they're all fine.
No physical evidence of bad caps or burns or anything on the amp board.
Read some of the other VSX threads but still not clear what to check next.
Any thoughts?
If I enter release mode, it powers on, the screen display is correct, but then it shuts down and goes back to MCACC after a few seconds. I can shut it down to standby (w/o flashing MCACC if I hit the power button as soon as release mode finishes the boot sequence).
Entering reset mode and executing a reset doesn't change this.
I am unable to enter service mode to see the error counts - Enter + Power button doesn't do anything, whether from normal standby or from MCACC flashing.
No DC voltage present on any speaker outputs.
Checked for shorts on all of the output transistors attached to the heat sink - they're all fine.
No physical evidence of bad caps or burns or anything on the amp board.
Read some of the other VSX threads but still not clear what to check next.
Any thoughts?
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