Name: Mr. Wallace Fan Tel: +86-755-29012093 Fax: +86-755-23313914 Mobile: +86-158-8937-0895 E-mail:sales@szaddtech.com
Troubleshooting
Fault
Reason
Solution
Whole screen no display
a. No AC power supply.
Check main power cable and
reconnect it.
b. The computer isn't working
Check the computer
c. Main data cable is broken.
Reconnect the main data cable
correctly or change a new one.
d. Control system is broken.
Check indicators on sending card and
receiving card, if red one keep lighting while
green one blinking when the system is ok,
otherwise use spare parts to replace.
e. Receiving card is no power.
Check power cable between receiving
card and power supply
f. Software setting is wrong.
Correct the software setting to suit the
control system.
Whole screen blinking.
a. Ground wire is broken.
Connect the ground wire between the
computer and screen.
b. Control system is broken down.
Change the control system.
c. Some signal of the data cable
is lost.
Examine the data cable, reconnect it
correctly or change a new one.
d. Refresh rate setting is wrong
Correct the Refresh rate setting
Module not work
a. Unit module has no power supply
Voltage for unit module is 5V.
b. Flat cable between two modules
is cut off.
Change the flat cable.
c. 245 IC is broke down.
Change new 245 IC
part of module works
abnormally
Signal of the part is wrong.
Check the resistance near the 5026 IC
which control that area.
Rows of module are not
lighting
Corresponding 4953 or 245 IC is
not working.
Examine the corresponding 4953 or 245 IC
Columns of module are
not lighting
Corresponding 5026 IC is not
working
Examine 5026IC or change a new one.
Dots out of control
Pins or 5026 IC short connected
Re-soldering the 5026IC or change
a new one.
The display texts have
shadows.
Data cable or DVI cable connected
incorrectly
Reconnect main data cable or DVI cable
between graphic card and sending card