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Troubleshooting Guide
When you meet the following common problems, you might diagnose and get the
solutions without contacting with the technicians.
Symptoms Possible Reason Solutions
No picture, no sound,
and no indicator light on
1.The power cord is not plugged in
2.The power is off
1.Plug the power cord in
2.Turn the power on
Picture and sound with
abnormity
1.Contrast, sharpness, and color
are set improperly
2.Color system is set improperly
3.Sound system is set improperly
1.Adjust the value of
Contrast, sharpness, and
colour
2.Set the Color system to
the country broadcasting
standard
3.Set the Sound system to
the country broadcasting
standard
Picture is spotted or with
snow
Signal source is low-grade or the
signal cord is in a lower quality
Use the qualified signal cord
No picture, no sound
and indicator light is
green/blue
Volume is in the minimum value or
TV is in mute mode.
Adjust the value of volume
The signal cable is not correctly
connected.
Connect the signal cable
correctly
Blue screen, AV is
displayed
There is no signal input or the video
cable is not connected or
incorrectly connected
Connect the video cable
correctly
No sound
There is no audio signal input or
audio cable is not connected
correctly
Connect the audio cable
correctly
HDMI source, with snow
pixel of full screen
The source generate is not
standard
Plug the HDMI cable again
Troubleshooting
31
The remote control does
not work
Batteries are improperly installed or
exhausted
1. Make sure the positive
and the negative
polarities are correct.
2.Check if there is a loose
contact between the
batteries and the springs
3.Replace the batteries
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