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3-84
V
ARI
*L
ITE®
-
VL4
W
ASH
L
UMINAIRE
S
ERVICE
M
ANUAL
CONFIDENTIAL
02.9628.0010
7-Oct-97
3.3.5.4
Low Voltage Supply and Universal Control PCB
Removal and Replacement
Parts:
1 EA
PCB ASSEMBLY, VL4 LOW VOLTAGE SUPPLY (LVS)
(24.9628.0045)
1 EA
ELEC. ASSY, VL4 LAMP CTRL (UCB/IFB) (23.9628.0232)
Tools:
Screwdriver, Phillips #1
Screwdriver, Phillips #2
To remove and replace low voltage supply or universal control PCB:
Step 1.
Remove power to luminaire.
Step 2.
At right electronics chassis air filter, while pressing down on
filter, pop out top of filter from chassis and fully remove filter.
Step 3.
Remove faulty PCB (Figure 3-31).
a. At card retainer, press down on spring release and open
retainer.
b. Pull out faulty PCB.
Step 4.
Replace faulty PCB by doing Steps 2 thru 3 in reverse.
UNIVERSAL CONTROL BOARD
LOW VOLTAGE SUPPLY
HINGE SECURED TO CHASSIS
PRESS DOWN ON SPRING
TO RELEASE RETAINER
FOAM PADDING
CARD RETAINER
Figure 3-31. Low Voltage Supply and Universal Control PCB Removal and Replacement