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2-22 Troubleshooting Technobeam
®
User Manual
Fixture is not responding to control commands—“Receive” LED does
not blink
Possible causes and solutions:
1.
Cause
: Faulty XLR cable.
Solutions
: Do one or both of the following:
a. Replace XLR cables going to the fixture’s Data In and Data Out
connectors with known good cables.
b. Verify cable integrity using cable test equipment.
2.
Cause
: There is no controller attached to the link, or the controller
is not generating any output.
Solution
: Verify that a controller is attached to the link. Verify that
the controller is generating output by sending commands to a
known working device.
Also see the section titled “Troubleshooting DMX Data” on page 2-
24.
3.
Cause
: One or more fuses have failed.
Solution
: Follow the instructions in the section titled “Replacing
Fuses” on page 6-2 to inspect the fuses and replace them if
necessary.
Dim flags close, fixture does not respond to control commands, lamp
shuts off, fan turns off
Possible causes and solutions:
1.
Cause
: Faulty XLR cable.
Solutions
: Do one or both of the following:
a. Replace XLR cables going to the fixture’s Data In and Data Out
connectors with known good cables.
b. Verify cable integrity using cable test equipment.
c. See the section titled “Troubleshooting DMX Data” on page 2-
24.
2.
Cause
: One or more fuses have failed.
Solution
: Follow the instructions in the section titled “Replacing
Fuses” on page 6-2 to replace the necessary fuses.
Color wheel or litho wheel is not centered in the beam or is in the
wrong position
Cause:
Non-High End Systems dichroic or litho does not meet
specifications. A litho that is slightly under the recommended
thickness, for example, can turn in the wheel as the wheel rotates,
causing the litho to become uncentered.