Vari Lite VL3500 Spot Luminaire, Service Manual

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T
ROUBLESHOOTING
: T
ROUBLESHOOTING
G
UIDE
0 2 . 9 6 7 8 . 0 0 1 8 A 15
2
Pan No
Sens
Luminaire will not pan Pan Sensor Not Found EOT flag attached to large pulley is not engaging the
EOT sensor...
- ensure flag is attached to the large pulley.
- ensure that flag passes through the sensor
at a depth sufficient to engage the sensor
beam.
Pan belt disconnected, extremely loose or not
installed properly...
- properly install belt between pan motor
and large pulley.
Tilt/
Encoder/
Fail
Luminaire will not tilt Tilt Encoder Failure MCB pan/tilt connector disconnected...
- connect MCB pan/tilt connector (J8).
Tilt motor disconnected
- connect tilt motor power.
Encoder faulty...
- replace tilt end-of-travel/encoder sensor
assembly.
Tilt No
Sens
Luminaire will not tilt Tilt Sensor Not Found EOT flag attached to large pulley is not engaging the
EOT sensor...
- ensure flag is attached to the large pulley.
- ensure that flag passes through the sensor
at a depth sufficient to engage the sensor
beam.
Tilt belt disconnected, extremely loose or not
installed properly...
- properly install belt between tilt motor and
large pulley.
n/a Color, dimmer or strobe
mechanisms will not
move
Color, Dimmer, or Strobe
Failure
MCB connector disconnected...
- check MCB connector at J11.
Check Interconnect board.
n/a Zoom/Edge or beam
spreader mechanisms
will not move
Zoom/Edge or Beam
Spreader Failure
MCB connector disconnected...
- check MCB connector at J10.
Check Interconnect board.
n/a Gobo or iris mecha-
nisms will not move
Gobos or Iris Failure MCB connector disconnected...
- check MCB connector at J9.
Check Interconnect board.
n/a Self tests will not run or
software download does
not work.
DMX Data Input Detecting DMX data...
- disconnect DMX input cable.
n/a Erratic control of lumi-
naire
DMX Termination No DMX termination or termination not correct...
- check DMX terminator.
Table 2-2: Troubleshooting Guide (Continued)
Message Symptom Description Possible Cause and Remedy