How can I turn the penal display ON/OFF?

Question

How can I turn the penal display ON/OFF. on the DENON receiver

Answer 1

It really depends on the model of the receiver.  If the receiver has the capability, there is probably a button right on the remote control labeled dimmer.  If you push the dimmer button it should cycle through bright dim dark and off. (This is how the AVR-788 model works though it could be different from model to model.)  Good luck.