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Inadequate or damaged 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 (+)
7. Troubleshooting
Following are a few common problems that may occur during operation. Here are some
suggestions for easy troubleshooting:
A.
The fixture does not work, no light
1.
Check the connection of power and main fuse.
2.
Measure the mains voltage on the main connector.
B.
Not responding to DMX controller
1.
Check DMX connectors, cables to see if link properly.
2.
Check the address settings and DMX polarity.
3.
If you have intermittent DMX signal problems, check the pins on connectors or on PCB of the
fixture 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 cables that may cause
damage or interference to DMX interface circuit.
C.
No response to the sound
1.
Make sure the fixture does not receive DMX signal.
