Home Theater Questions? Ask a Technician for Answers ASAP
Hello, and sorry you're having problems. In order to reset the receiver to factory defaults, shut the receiver OFF using the standby/power button on the front of the unit.
Then press and hold the "Speaker A" and "Speaker B" buttons on the receiver itself, while pressing the power/standby button once. Continue to hold the Speaker buttons until "Please Wait" flashes on the display and then release those buttons.
The processor will then be full reset and will clear any inadvertently pressed buttons on the receiver.
These steps are straight from Denon for your model and also outlined on page 21 of the Owner's Manual at the link below:
If you're still not able to get any sound, then be sure to check various "Sources" on the Denon (DVD, TV, and even the built-in FM tuner) to ensure the issue is not isolated to the "Source itself" a pulled cable, Cable Box that needs to be rebooted (by pulling it's power cord for 10 seconds and plugging it back in), etc.
Also if the factory reset per Denon is still not working, then consider unplugging the receiver for 10 seconds and plugging it back in and then trying those steps again.
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