Hello, I am a maintenance technician living in Thailand. Now I have received a DENON AVR4311 which has no sound, but as far as I have checked, there is sound only in stereo mode and direct front speakers. I tried adjusting the sound mode, the Center Surround channel also has no sound. I checked the firmware version, everything is normal, but the position, sound and video show the version PLD:00.00. What does it mean and what is PLD? I don't understand.
Read the manual carefully, there are probably some settings that need to be changed.
PLD = Programmable Logic Device.
Attached is the part of the large manual regarding settings.