Troubleshooting - ACME ARAS User Manual

1. Connect the fixture together in a "daisy chain" by XLR plug cable from the output of the fixture to
the input of the next fixture. The cable cannot be branched or split to a "Y" cable. 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. 3/5 pin XLR connectors:.
3 pin XLR: Pin 1: GND, Pin 2: Negative signal (-), Pin 3: Positive signal (+), Pin 4: Blank, Pin 5: Blank

Troubleshooting

8.
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
12A