Philips VL3000 Service Manual page 66

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VARI LITE® - VL3000™ & VL3000™Q S
Repair/Replacement Procedure (New Style Ballast)
Step 1. Using console or internal menus, run lens as far to the rear as possible.
Step 2. Disconnect luminaire AC input cable from power source.
Step 3. At each top enclosure cover, remove two 6-32x1/4" PPB screws and remove cover.
Step 4. In each corner from top, remove four 6-32x3/8" PPZ screws.
CAUTION: Be careful not to damage lens during next step.
Step 5. Carefully lay luminaire on its side, ensuring that lens does not come into contact with any
surface.
Step 6. At bottom of enclosure, remove four 1/4-20x1/2" socket screws and 1/4" split lock washers
and remove ventilation cover (as shown in
Step 7. Remove both handles by removing two 10-32x5/8" PPB screws at each.
Step 8. At enclosure bottom, remove four 6-32x1/4" PPB screws and both side covers.
Step 9. At enclosure bottom, remove two 6-32x3/8" PPB screws, APS side bracket and front cover
from ballast side.
Step 10. At ballast, disconnect the following cable assemblies:
a. Lamp wires
b. AC input
c. Control wiring
Step 11. Pull lamp wires through ferrite core.
Step 12. At bottom of enclosure, remove three 8-32x3/8" PFZ screws and four 8/32x3/8" PPZ screws
which secure ballast module to enclosure.
Step 13. Remove ballast module.
Step 14. Install replacement assembly by performing Steps 2-13 in reverse order.
NOTE:
Some components not shown for clarity.
Back of Display
48
M
ERVICE ANUAL
Figure 2-27: VL3000 Ballast Replacement (New Style)
Figure 2-26 on page 47).
Route Lamp to Supply Cable as shown -
same as original cable assembly.
1200-Watt Ballast
Assembly
Lamp Supply to Relay
Cable Assembly
Cable must be routed through Ferrite
02.96 78.001 0 G