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Kordis Media Co.,ltd
Data Sheet NCB210X2
TROUBLESHOOTING
General
A general guide to troubleshooting of a flat panel display system it worth considering the system as separate
elements, such as:
►
Controller (jumpers, PC settings)
►
Panel (controller, cabling, connection, panel, PC settings)
►
Backlight (inverter, cabling, connection, panel, Pc settings)
►
Cabling
►
Computer system (display settings, operating system)
Through checking the system step by step cross with instruction manuals and a process of elimination to
isolate the problem it is usually possible to clearly identify the problem area.
No image:
►
If the panel backlight is not working it may still be possible to see just some image.
►
A lack of image is most likely to be caused by incorrect connection, lack of power, failure to provide a
signal or incorrect graphic card settings
.
Image position:
If it is impossible to position the image correctly, the image adjustment controls will not move the image far
enough, then test using another graphics card. This situation can occur when a graphic card is not close to
standard timing or when something is in the graphics line that may affect the signal such as a signal splitter
(please note that normally a signal splitter will not have any adverse effect).
Image appearance:
►
A faulty panel can have blank lines, failed sections, flickering or flashing display.
►
Incorrect graphic card refresh rate, resolution or interlaced mode will probably cause the image to be the
wrong size, to scroll to, flicker badly or possibly even no image.
►
Incorrect jumper settings on the controller may cause everything from incorrect image viewing to total
failure.
CAUTION:
Do not set the panel power input incorrectly.
►
Sparkling on the display: faulty panel signal cable.
Backlight:
Items to check include: Power input, controls, inverter and Tubes generally in this order.
If half the screen is dimmer than the other half:
►
Check cabling for the inverter.
Also:
►
If system does not power down when there is a loss of signal.
