Philips Vari-Lite VL500, Service Manual, Page: 67 / 220

M
AINTENANCE
:
2
0 2 . 9 6 8 5 . 0 0 1 0 A 21-May-2009 49
Display PCB Replacement
Parts:
24.9685.0826 1 EA ASSY, VL500 DISPLAY PCB
Tools:
• 1/4" Hex Nutdriver
• #2 Phillips Screwdriver
WARNING:
Remove power from luminaire before performing maintenance.
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
Figure 23
, remove four 6-32x1/4" PPB screws.
Figure 23: Display PCB Replacement
Step 4. Remove display overlay.
Step 5. As indicated in
Figure 23
, remove four 1/4" hex (9/32" long) standoffs.
Step 6. At display PCB, disconnect the following wiring connections:
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)
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.
Display Overlay
Display Lens
Display PCB
6-32x1/4" PPB (x4)
1/4" Hex (9/32" Long)
Some components not shown for clarity.
NOTE:
Menu
Display
Standoff (x4)
Yoke Arm
Cover