Grandin LD40CGB18 Notice D'utilisation page 80

Troubleshooting Guide
When you meet the following common problems, you might diagnose and get the
solutions without contacting with the technicians.
Symptoms
No picture, no sound,
and no indicator light on
Picture and sound with
abnormity
Picture is spotted or with
snow
No picture, no sound
and indicator light is
green/blue
Blue screen, AV is
displayed
Picture is unclear or
shaking or with black
horizontal strips (in PC
mode)
PC picture is not
centered
No sound
PC picture display with
improper color
HDMI source, with snow
pixel of full screen
Troubleshooting
Possible Reason
1.The power cord is not plugged in
2.The power is off
1.Contrast, sharpness, and color
are set improperly
2.Color system is set improperly
3.Sound system is set improperly
Signal source is low-grade or the
signal cord is in a lower quality
Volume is in the minimum value or
TV is in mute mode.
The signal cable is not correctly
connected.
There is no signal input or the video
cable is not connected or
incorrectly connected
PC picture is not correctly adjusted.
There is no audio signal input or
audio cable is not connected
correctly
The color temp is adjusted
incorrectly by user
The source generate is not
standard
33
Solutions
1.Plug the power cord in
2.Turn the power on
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
Use the qualified signal cord
Adjust the value of volume
Connect the signal cable
correctly
Connect the video cable
correctly
Enter into Screen menu,
select Auto Adjust item to
perform automatic
calibration and adjust Phase
to solve the problem
Connect the audio cable
correctly
Readjust the color temp, or
select the original color
setting
Plug the HDMI cable again