AOC 50U6285 Manual page 51

No sound/Noisy sound
Good picture, no sound
Audio noise
Others
Certain programs on
DVD or other digital
sources display a loss of
detail, especially during
fast-motion or dark
scenes
Remote control does not
operate
Check the volume control. Press
disappears from the screen.
For HDMI equipment, confirm that the audio output setting of the connected
equipment is set to PCM. This TV's HDMI inputs support PCM 32, 44.1 and
48 kHz.
Make sure that the antenna is connected using a 75-ohm coaxial cable.
Keep the antenna cable away from other connecting cords.
To avoid TV interference, make sure to use an undamaged antenna cable.
This is due to the digital compression of the source content used by certain
digital broadcasts and DVDs which may cause your TV's screen to display
less detail than usual, or cause artifacts (small blocks or dots, pixilation) to
appear on your screen. These signal compressions are more visible and are
dependent on the clarity and resolution of the television.
Check the polarity of the batteries or replace the batteries.
Point the remote control at the remote control sensor located at the front of the
TV.
Fluorescent lamps can interfere with your remote control operation; try turning
off the fluorescent lamps.
Keep the remote control sensor area clear from obstacles.
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(Mute) key or VOL + so that
Mute