Hope this helps.... Try a hard reset.
Taken from the Users Manual
Receiver does not respond to any controls
Unplug AC power momentarily, and press Power to turn back on
If this does not work, try the reset procedure on the next page.
"Protect" shows in the display
The Receiver has thermal and short-circuit protection circuits.
If the ampliÞ er internal temperature is high,
a quiet fan will engage and start to cool things down.
If the temperature increases further,
the Receiver will go into a standby
mode and "Protect" will appear in the
display. When it cools sufÞ ciently, the
Receiver will turn back on.
If the Receiver goes into protect
mode often, check the following:
Each speaker’s average impedance
is not less than 4 ohms.
The Receiver has good ventilation,
none of its vents are covered.
Try setting all the speakers to
Small, and let your subwoofers
handle the heavy bass.
Check that the ampliÞ er power
output is a good match for your
speakers. If your speakers are
inefÞ cient, consider using an external
The Receiver is a microprocessor
controlled device of great complexity.
Occasional power Fluctuations and
spikes may cause the Receiver to
"lock up" or act strangely.
The Receiver can be reset as follows.
Warning: the Receiver will be reset to the factory defaults,
and will clear all memory. All your stored OSD settings and
Tuner presets will be erased.
Write down your calibration settings, input settings,
Tuner presets, and any other settings you have made.
Press the power button to turn the unit off, or turn it off from the wall for a moment.
Press and continue to hold down the front panel Power button and the Tone DOWN button at the same time.
The Receiver will power on and cycle through the display. Keep holding the buttons down until
"Resetting to Factory Defaults" appears in the front panel display
When the Receiver has been reset, it will shut off.
Turn the Receiver back on and it will go to the default screen. It has now been reset.
If the Receiver has to be reset regularly, you should invest in a good quality AC line conditioner.