1. Phenomenon: the whole display is flickering.
- Problem: signal poor connection.
- Solution: re-fix or re-connect signal cable.
2. Phenomenon: dusky LED
- Problem: The voltage of switching power supply is inconsistent with LED voltage tag.
- Solution: make sure the voltage of switching power supply is consistent with LED. voltage tag.
3. Phenomenon: partial LEDs do not work.
Problem:
- Contact direction correct or not.
- Power output wiring correct or not.
- Power wire anti-inserted or connected inversely.
Solution:
- Re-connect in a correct way.
- Ensure the red wire connect the positive pole,black wire connect the negative pole.
- Check partial the wrong connection , re-connect.
4. Phenomenon: all LEDs do not work
Problem:
- No output of the switching power supply.
- Wrong power connection.
Solution:
- Connect the power switch input and test.
- Check the positive and negative pole of the power supply whether it is right or not.