3-26
V
ARI
*L
ITE®
-
VL4
W
ASH
L
UMINAIRE
S
ERVICE
M
ANUAL
CONFIDENTIAL
02.9628.0010
7-Oct-97
3.2.2.5
Lamp Will Not Start
CAUTION: Do not touch glass envelope of lamp with bare fingers. Oils
on fingers will deteriorate glass when heated and may cause glass to
explode.
Step 1.
Inspect lamp.
a. At rear of luminaire head, at lamp assembly, turn 1/4-turn
fasteners and carefully slide out lamp assembly from
luminaire head.
b. At lamp carriage, squeeze and lift lamp retainer. Remove
lamp from lamp carriage. Replace as needed. Refer to
Lamp Removal and Replacement paragraph.
Step 2.
Replace power supply. Refer to Arc Power Supply Removal
and Replacement paragraph.
Step 3.
Replace ignitor board. Refer to Ignitor Board Removal and
Replacement paragraph.
Step 4.
Inspect and test lamp wires. Replace as needed. Refer to Yoke
Cables and Lamp Wire Removal and Replacement paragraph.
3.2.2.6
Douser Not Working Properly
Step 1.
At yoke termination board, check connections. Ensure all
connectors are properly and securely connected.
Step 2.
Replace UCB. Refer to Low Voltage Supply and Universal
Control PCB Removal and Replacement paragraph.
Step 3.
Remove Dimmer/Filter/Douser assembly. Refer to
Dimmer/Filter/Douser Assembly Removal and Replacement
paragraph.
a. Recalibrate dashpots. Refer to Douser Dashpot Calibration
paragraph.
b. Inspect douser springs. Ensure springs are properly
connected and not worn or stretched. Replace as needed.
Refer to Douser Spring Removal and Replacement
paragraph.
CAUTION:
Wear white cotton gloves when working with iris leaves.
Oils and dirt from hands will damage douser leaves!
c. Inspect douser leaves. Ensure that leaves are not bent and
that leaf pins are not smashed or otherwise damaged.
Replace as needed. Refer to Douser Leaves Removal and
Replacement paragraph.
