Troubleshooting Guide - Vari Lite VLX3 User Manual

❋
VARI LITE - VLX3 W

Troubleshooting Guide

If a problem is suspected, first try recalibrating the luminaire to prompt an error message. The chart
below provides possible causes and remedies for various error messages and/or symptoms.
WARNING: All service and maintenance (including troubleshooting), other than described herein
should be performed by an Authorized VARI❋LITE Dealer or Service Center.
Message Description
n/a No light output
n/a No power
n/a DMX Data Input
n/a DMX Failure
n/a DMX Termination
n/a LED (light) is getting dim-
mer.
72
L U '
ASH UMINAIRE SER
Table A-2: Troubleshooting Chart
Symptom
Fixture will not produce
or output light
Luminaire does not
power up
Self tests will not run or
software download does
not work.
No response to DMX
data
Erratic control of
luminaire
Fixture appears not to
be operating at full
brightness.
1 7 Dec emb er 2 012
M
S ANUAL
Possible Cause/Remedy
Component Failure...
- check fans for proper connection and operation.
Circuit not energized...
- verify circuit breaker is turned on.
Not plugged in...
- ensure A/C cable is connected to power source.
Power cable wired incorrectly...
- verify power cable and connector are wired
correctly. (
Requirements" on page 10.
Detecting DMX data...
- disconnect DMX input cable.
MCB connector disconnected...
- check MCB DATA IN connection.
DMX data cable not wired correctly or has a broken
conductor...
- check DMX data cable for proper wiring. (
"Power and Data Cabling Requirements" on
page 10.
No DMX termination or termination not correct...
- check for DMX terminator. (
Termination Connector" on page 13.
Luminaire has detected an over temperature
condition...
- The luminaire will reduce power to all 7 LEDs if it
senses that one LED is operating over the
specified temperature. LED temperature is read
and recorded through a thermistor imbedded in
each LED chip. The two yellow wires carry the
information (on temperature) to the LED's
respective driver PCB.
- Check the thermistor temperatures of each LED
through the fixture's LCD display.
If one LED is much hotter than the others...
- Check to see that the LED's fan is running /
connected to the Driver PCB.
See "Power and Data Cabling
).
)
See "Male
02 .9 703 .00 01 A
See
)