Denon AV Receiver AVR-1603 does not output sound when I turn it on?

Denon AV Receiver AVR-1603 does not output sound when I turn it on?

When i turn on my Denon AVR-1603 the power LED comes on however no sound is outputted and the LCD screen does not light up or show anything on it.

ANSWERS:

"Hi,

seems like there is something wrong with the power supply. I would guess the +5V doesn´t works. If you have a service manual you can try to fix it, otherwise i would look for a service technician."