Main Control Board (Mcb) Replacement - Philips VL3015LT Service Manual

Main Control Board (MCB) Replacement

Vari-Lite Part No: 24.9698.0700
To remove and replace main control board (MCB):
Step 1. Remove power from luminaire.
WARNING: You must remove all power from luminaire before performing maintenance. Fixture
may be very HOT after operation. Allow it to cool completely before performing any maintenance.
Note: To determine which yoke leg is which without having to remove the covers, rotate yoke
counterclockwise until it stops, then look at the luminaire while facing the input panel. The tilt-side leg
is the leg to the left; the board-side leg is the leg to the right.
Step 2. At board-side leg, remove yoke leg cover by removing four 6-32x3/8" PTB screws.
CAUTION: Always use anti-static precautions when working with PCBs.
ESD
Step 3. Disconnect wiring harness connectors J2 (on daughter board) J8, J9, J10, J11 and J12.
Step 4. Remove two 6-32 x 3/8" PPZ screws and remove daughter board.
Step 5. Remove two 6-32 x 1/4" standoffs, two 6-32 x 3/4" PPZ screws, and gently tilt MCB away
from yoke assembly
Step 6. Disconnect wiring harness connectors J1, J2, J3, J4, and J5 at back of MCB.
Step 7. Install replacement assembly by performing previous steps in reverse order.
Step 8. Configure using menu functions as necessary.
02.96 98.001 0 0
M P
AINTENANCE ROCEDURES
Figure 2-11: Main Control Board (MCB) Replacement
: M C B
AIN ONTROL OARD
(MCB) R
EPLACEMENT
Main Control Board (MCB)
Yoke Leg Cover
NOTE:
Drawing exploded for clarity.
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