www.onbonbx.com Page 20
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.
Checking and adjusting solutions
There’s no display or
image output in LCD
screen.
Please check power supply cable.
Please check ON/OFF button of power supply.
There’s display on
LCD screen, but do
not have image
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, factory reset.
Image cannot show
on full LED display.
Please check LED screen width and height value is the
same with LED screen resolution or not. Users can set LED
screen parameters on “IMAGE OUTPUT”in menu.
VGA input image is
not in middle.
Continuously press “AUTO”button on board until it
shows correctly.(When you do auto adjust, please use full
screen without black frame signal)
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.
There’s no response
for buttons on board.
Please check the button lock is open or not ( ). Press
rotate button as to enter into main menu, close in
“OPTION”.