Fault analysis: 1, LCD splicing system serial port command is incorrect.
2, The output is not normal.
3, The serial port settings are not correct.
4, The control line is not connected.
Solution: 1, the serial port command is correct.
2. Check that the output of the last product connected is normal.
3, The serial port is set correctly
4, Check whether the control line is connected.
Fault phenomenon: The power LED is not lit.
Fault analysis: 1, LCD splicing screen power supply jack failure.
2, Splicing screen system did not boot.
3, Power outage.
Solution: 1, test the Power jack, the power cord of another product into the power jack just used.
2, Check whether it is on the boot state, if not open, open the LCD splicing screen power can be.
3, Check whether the power supply is interrupted.
Fault phenomenon: signal out of range.
Fault Analysis: 1, input source signal problem.
2, LCD splicing screen resolution did not adjust well.
Solution: 1, check the LCD splicing system input source signal is normal.
2. Adjust the resolution of the LCD mosaic screen, horizontal frequency or vertical frequency to adjust it to the best resolution.
