There Is Severe Humming Or Noise - Sony STR-DN1060 Parts And Controls

Press to cancel the muting function.
Try pressing the input button on the remote control or turning INPUT SELECTOR on the
receiver to select the device of your choice.
If you want to listen to sound from the TV speaker, set [Audio Out] to [TV + AMP] in the
HDMI Settings menu. If you cannot play multi-channel audio source, set [AMP]. However,
the sound will not be output through the TV speaker.
Sound may be interrupted when the sampling frequency, number of channels or audio
format of audio output signals from the playback device is switched.
If you are listening with BLUETOOTH headphones, check that the [Bluetooth Mode] is not
set to [Receiver] or [Off].
[231] Troubleshooting

There is severe humming or noise.

Check that the speakers and device are connected securely.
Check that the connecting cables are not near a transformer or motor, and are at least 3
meters (10 feet) away from a TV set or fluorescent light.
Move your audio device away from the TV.
The plugs and jacks are dirty. Wipe them with a cloth slightly moistened with alcohol.
[232] Troubleshooting
No sound or only a very low level of sound is heard from
specific speakers.
Connect a pair of headphones to the PHONES jack to verify that sound is output from the
headphones. If only one channel is output from the headphones, the device may not be
connected to the receiver correctly. Check that all of the cables are fully inserted into the
jacks on both the receiver and the device.
If both channels are output from the headphones, the front speaker may not be connected
to the receiver correctly. Check the connection of the front speaker that is not outputting
any sound.
Make sure you have connected to both the L and R jacks of an analog device, as analog
devices require both L and R jack connections. Use an audio cable (not supplied).
Adjust the speaker level.
Check that the speaker settings are appropriate for the setup using [Auto Calibration] or
Sound
Sound