1. The signal is out of range
Failure analysis:
1. The resolution of the LCD splicing screen is not adjusted properly. 2. The input source signal problem.
solution:
1. Adjust the resolution of the LCD splicing screen, the horizontal frequency or vertical frequency to adjust it to the best resolution.
2. Check whether the input source signal of the LCD splicing system is normal.
2. The whole screen does not light up
Failure analysis:
1. Power supply problem. 2. Problems with the screen or splicing box itself. 3. The machine is malfunctioning.
solution:
1. Check whether the power line is properly connected; if it is a short circuit, a black and white screen may appear, which will burn the machine instantly; or the voltage is not enough, check whether the short-circuit caps at JP1 and JP2 on the splicing board are placed on 12V , Whether the wiring from the power supply to the 24V output is correct.
2, it may be damaged during transportation, contact the manufacturer for repair.
3. Check whether the machine can start normally under normal power-on conditions.
3. Color or signal is unstable
Failure analysis:
1. The PC graphics card is faulty. 2. The signal line is faulty.
solution:
1. Reinstall the PC graphics card that spliced the large screen.
2. Check the signal cable of the LCD splicing screen.
4. The power indicator does not light up
Failure analysis:
1. The power supply is interrupted. 2. The power jack of the LCD splicing screen is faulty. 3. The splicing screen system is not turned on.
solution:
1. Check whether the power supply is interrupted.
2, test the power jack, plug the power cord of another product into the power jack just used.
3. Check whether it is turned on. If it is not turned on, turn on the power of the LCD splicing screen.
