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VARI❋LITE - VL550 W
Display PCB Replacement
Parts:
24.9685.0826
Tools:
•
1/4" Hex Nutdriver
•
#2 Phillips Screwdriver
WARNING:
To remove and replace display PCB assembly:
Step 1. Remove power from luminaire.
Step 2. Remove display-side yoke arm cover by removing four 6-32x3/8" PTB screws.
Step 3. At display overlay, as indicated in
Menu
Display
Yoke Arm
Cover
Step 4. Remove display overlay.
Step 5. As indicated in
Step 6. At display PCB, disconnect the following wiring connections:
Step 7. Remove Display PCB.
Step 8. Replace by performing Steps 2 through 7 in reverse order.
Note:
Orientation of display overlay - the overlay should be black paper side out to allow
proper and free button travel.
36
L
S
ASH
UMINAIRES
ERVICE
1 EA
ASSY, VL500 DISPLAY PCB
Remove power from luminaire before performing maintenance.
NOTE:
Some components not shown for clarity.
Figure 15: Display PCB Replacement
Figure 15
a. 4-position MTA connector (24V DC)
b. 2-position connector (MCB Fan)
c. 4-position connector (LVS Fan/Temperature Switch)
d. 6-position connector (Display Communication)
2 5 Marc h 2 011
M
ANUAL
Figure 15
, remove four 6-32x1/4" PPB screws.
6-32x1/4" PPB (x4)
Display Lens
Display Overlay
Display PCB
, remove four 1/4" hex (9/32" long) standoffs.
1/4" Hex (9/32" Long)
Standoff (x4)
02 .9 683.00 10 0
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