![Onbon OVP-L1X User Manual Download Page 21](http://html1.mh-extra.com/html/onbon/ovp-l1x/ovp-l1x_user-manual_1634211021.webp)
www.onbonbx.com
Page 19
FAQ
This is a professional equipment, users should be professional on it. When you meet some
problems, please try to check with below info. And if you still cannot solve, please contact with
local agent or contact with us directly.
Problems
Checking and adjusting solutions
There’s no light or light
flashing of signal button
on board, no picture
output.
Please check power supply cable.
Please check ON/OFF button of power supply.
There’s light of signal
button on board, but
without picture output.
Please check that it is connecting input signal and
already switch to the relative signal source.
Please check that the display terminal supports output
resolution and refresh rate of this equipment.
Please check the settings of brightness and contrast.
Please try to reset this equipment by PC software.
Image cannot show on
full LED display.
Please check LED screen width and height value in
software , should be the same with LED screen resolution.
Users can set LED screen parameters according to PC
software.
VGA input image is not in
middle.
Please set by “VGA automatic adjustment” of “input
signal source setting” in PC software.
Image is in middle, but
there’s black frame.
This problem occurs because you use VGA, DVI, HDMI
port which are outputted from PC video card.