Routine maintenance:
1.Regular use. After put into use, 25-30 hours and 5 times usage per month is
necessary to keep the display dry and deliver a stable performance.
2.Regular clean. Normally one time every half of a year is OK. Cut off the electricity
power, and then use a dry brush to sweep from top to the bottom. Then use a tide wet
rag to wipe one more time. After the cleaning, the LED display should put through
electricity at least 4 hours to keep it dry.
3.Power system maintenance. Dairy check on power supply system. Routine
cleaning inside the power distribution cabinet and fasten screws connections one
time per month. Electrician certificate is needed for the maintenance stuff. Hot plug is
forbidden.
Repair: common failures and trouble shooting
1.Ensure the power is turning on or not.
2.Check communication circuits are connected right.
3.Check the communication green light of sending
card & receiving card is flashing or not.
4.Check the screen saver is on or not; check the
screen is black, blue or normal.
1.Check if +5V or GND is operating. •
2.Check if +5V or GND is short circuit.
3.Check if the signal is normal.
Part of module malfunction
1.Check that the golden pin of the module is in
contact, elasticity is good, Off-pad or not.
2.Check the module pad or golden pin for impurities,
debris, etc.
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