Denon DN-500AV Owner's Manual page 134

Resetting the microprocessor
Perform this procedure if the display is abnormal or if operations cannot be performed.
When the microprocessor is reset, all the settings are reset to their default values.
ON/STANDBY QUICK SELECT 2
QUICK SELECT 1
1
ON/STANDBY
Turn off the power using
2
ON/STANDBY
Press while simultaneously pressing
SELECT 2 .
3
Once the display starts flashing at intervals of about 1 second, release the two
buttons.
If in step 3 the display does not flash at intervals of about 1 second, start over from step 1.
BD
.
QUICK SELECT 1 QUICK
and
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