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TROUBLESHOOTING
The audio function does not work
Picture OK but no sound
No output from one of the
speakers
Unusual sound from
inside the TV
No sound when
connecting HDMI
Audio noise
Password
Lost password
There is a problem in PC mode
The signal is out of range
(invalid format)
Vertical bar or stripe on
background & Horizontal
Noise & Incorrect position
Screen color is unstable
or show a single color
Maintaining
• Do not use your TV in areas that are too hot or too cold, because the cabinet may
warp or the screen may malfunction. Your TV works best in temperatures that are
comfortable to you.
• Storage temperatures are 32° to 122°F(0° to 50°C)
• Working temperatures are 32° to 95°F(0° to 35°C)
• Do not place your TV in direct sunlight or near a heat source
• Press the VOL +/- buttons.
• Sound muted? Press the MUTE button.
• Try another channel. The problem may be caused by the
broadcaster.
• Adjust the Balance settings in the AUDIO menu.
• A change in ambient humidity or temperature may result in
an unusual noise when the TV is switched on or off and does
not indicate a fault with the TV.
• Check if the input source is HDMI1/HDMI2/HDMI3.
• Keep the RF coaxial cable away from the other connected
cables.
• Select the SET Password setting in the LOCK menu, then
enter the following master password "8899". The master
password clears your previous password and allows you to
enter a new password.
• Adjust the resolution, horizontal frequency, or vertical
frequency.
• Use Auto configures or adjust clock, phase, or H/V position.
• Check the signal cable.
• Reinstall the PC video card.
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