Problem Analysis
Problem
Checking way
Can not turn on the
light
Check the power source plug is in normal or not
Check the switch of the lights is off or on
Check the fuse if in normal
DMX can not control it
Check the DMX cable is connect to the lights or not
Check the DMX512 controller work in normal or not
Check the DMX cable is normal or not
Check if the lights is in DMX mode
（
A001
）
Display not bright
When connect to the electricity did the led flash one time?
If so the power source is normal; If not please check if
the switch and the transformer has power out
Check if the power input of the IC board is normal
Check if the cable connect to the display loose
Change the main board to see if it is normal.
Chang the display
LED not light
When connect to the electricity
，
did the led flash one time?
If so the power source is normal; If not
，
please check if
the switch and the transformer has power out
Check if the power input of the IC board is normal
Check if the cable connect to the display loose
Change the main board to see if it is normal.
Chang the display
Some of the LED not
light
LED is connect by leds in series first, then connect
parallel, so please check if the leds is loose
Use the multimeter to check if the led is bright or not, of
not, please change the led
check whether current limiting resistor is normal or not
Check constant current IC is normal or not (compared
with the normal IC)
Single color leds always
bright/not bright
Check the switch of this color is normal or not
Change the IC control board
