Troubleshooting
Before contacting a service technician, perform the following simple checks. If any
program still persists, unplug the TV and call for service.
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
Abnormal picture and
sound
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
color
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 defective or poorly
connected.
Use known good signal cord
Volume is at the minimum value or
TV is in mute mode.
Adjust the value of volume
No picture, no sound and
indicator light is
green/blue
The signal cable is not correctly
connected.
Connect the signal cable
correctly
There is no signal input or the video
cable is not connected properly
Connect the video cable
correctly
Picture is unclear or
shaking or with black
horizontal strips (in PC
mode)
PC picture is not
centered
PC picture is not correctly adjusted.
Enter into Screen menu,
select Auto Adjust item to
perform automatic calibration
and adjust Phase to solve
the problem
No sound
There is no audio signal input or
audio cable is not connected
correctly
Connect the audio cable
correctly
PC picture display with
improper color
The color temp is adjusted
incorrectly by user
Readjust the color temp, or
select the original color
setting
Troubleshooting Guide
18
Blue screen, AV is
displayed
