Service manual

MAINTENANCE PROCEDURES : MAIN CONTROL BOARD (MCB) PCB REPLACEMENT

02.9678.0010 G 27

Main Control Board (MCB) PCB Replacement

VL Part No: 24.9678.3730

Repair/Replacement Procedure

Step 1. Disconnect luminaire AC input cable from power source.

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.

Step 3. Disconnect wiring harness connectors J8, J9, J10 and J11.

Step 4. Remove four (4) 6-32 screws securing MCB PCB

Step 5. Disconnect upper enclosure connectors J1, J2, J3, J4 and J12 at back of MCB.

Step 6. Install replacement assembly by performing Steps 2-5 in reverse order.

Step 7. Configure using menu functions as necessary.

Figure 2-9: VL3000 Main Control Board Replacement

ESD

Main Controller Board

Yoke Leg Cover