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cables, soldered joints or corroded connectors can easily distort the
signal and shut down the system.
2. The DMX output and input connectors are pass-through to maintain
the DMX circuit when one of the units’ power is disconnected.
3. At last fixture, the DMX cable has to be terminated with a terminator
to reduce signal errors. Solder a 120 ohm 1/4W resistor between pin
2 (DMX-) and pin 3 (DMX+) into a 3-pin XLR-plug and plug it in the
DMX-output of the last fixture.
4. Each lighting fixture needs to have an address set to receive the data
sent by the controller. The address number is between 0-511 (usually
0 & 1 are equal to 1).
5. 3 pin XLR connectors are more popular than 5 pins XLR.
3 pin XLR: Pin 1: GND, Pin 2: Negative signal (-), Pin 3: Positive signal (+)
5 pin XLR: Pin 1: GND, Pin 2: Negative signal (-), Pin 3: Positive signal (+),
Pin4/5: not used
7. Troubleshooting
Following are a few common problems that may occur during operation.
Here are some suggestions for easy troubleshooting:
A. The unit does not work, no light and the fan does not work
1. Check the mains power supply and mains fuse.
2. Check the mains outlet for proper functioning.
3. Check the power on LED.
B. Not responding to DMX controller
1. DMX LED should be on. If not, check DMX connectors, cables to see
if they link properly.
2. If the DMX LED is on and no response to the channel, check the ad-
dress settings and DMX polarity.
3. If you have intermittent DMX signal problems, let a technician check
the pins on connectors or on PCB of the unit or the previous one.
4. Try to use another DMX controller.
5. Check if the DMX cables run near or run alongside to high voltage ca-
bles that may cause damage or interference to DMX interface circuit.
C. Some units don’t respond to the easy controller
1. You may have a break in the DMX cabling. Check the LED for the re-
sponse of the master/slave mode signal.
2. Wrong DMX address in the unit. Set the proper address.
