3-30
V
ARI
*L
ITE®
-
VL2B
AND
VL2C
S
POT
L
UMINAIRE
S
ERVICE
M
ANUAL
CONFIDENTIAL
02.9631.0010
15 Jan 98
Luminaire Fault Isolation Chart (continued)
Assuming that all other system components are working properly and that
proper system power has been supplied to the luminaire:
Symptom
Probable Cause
Corrective Action
Color filters not working properly
Loose yoke cable connection at
mother board
Loose yoke cable connection at
YTB
Bad CIB
Bad LVS
Warped color filter
Bent color filter wheel
Loose/bad motor wire connections
Sensor out of adjustment
Bad sensor
Bad motor
Bad Yoke cable
Edge control not working properly
Loose yoke cable connection at
mother board
Loose yoke cable connection at
YTB
Bad CIB
Bad motor
Bad Yoke cable
Gobo filters not working properly
Loose yoke cable connection at
mother board
Loose yoke cable connection at
YTB
Bad CIB
Bad LVS
Warped Gobo wheel
Bent Gobo
Loose/bad motor wire connections
Sensor out of adjustment
Bad sensor
Bad motor
Improper tilt response
MTA connector unplugged
Bad tilt mechanism (belt, motor,
encoder, etc.)
Bad CIB
Bad LVS
Bad yoke cable
Bad driven pulley