32
Phenomenon
Check list
Page
Equipment without image, no
display in the front panel.
Check the power cord
Check the power switch
The front panel of the screen
is displaying information, but
no image output or output
image is not stable
Check whether properly connected the input
signal and have switched to the corresponding
source (if no signal, the front panel LCD screen will
display no signal, and the machine will have no
image output at the moment )
Check display terminals whether to support the
output resolution and refresh rate of LED-515.
Check if the brightness and contrast set too low.
Check whether the user color temperature set too
low.
check picture 1 and 2 input status, whether the
top picture showed a signal
Try to reset the machine to be the factory setting
by “factory reset” of the "function Settings" sub
menu.
[
12]
[
9]
[
16]
[
16]
[
12]
[
24]
Image
display
position
deviation
Enter “ output Settings ” submenu, adjust the
“horizontal position”and“vertical position’, till
the image display properly
[
17]
VGA or DVI port images
showed abnormal
Check whether the input signal resolution is
accordance with VESA standard.
[
9]
VGA Image displayed in
un-full screen
Press the front panel "AUTO" button until the
image display correct (automatic adjustment,
please use the full screen and not take black side
signal)
[
8]
PIP display abnormal
Check if it is reasonable that the item numerical of
“ horizontal width ” and “ vertical height ” ,
“horizontal position”and“vertical position”of
“PIP”submenu.
[
25]
Fade function is invalid
Check whether automatically switch function is
closed
Whether the input signal of Picture 1 and picture 2
is effective.
[
19]
[
12]
