What to do if my Harman Kardon AVR 7000 Receiver display lights, but there is no sound or picture?
- NNathan HollowayAug 14, 2025
If your Harman Kardon Receiver's display is lit but there's no sound or picture, first, ensure all input and speaker connections are securely connected. Then, check if the mute function is on and, if so, press the Mute button. Finally, verify the volume control isn't set too low and increase it as needed.















