C
HAPTER
3. M
AINTENANCE
P
ROCEDURES
3-97
02.9631.0010
CONFIDENTIAL
15 Jan 98
3.3.12 Motherboard Removal and Replacement
Parts:
1 EA
PCB ASSY, MOTHER BOARD (24.9620.0024)
Tools:
Screwdriver, Phillips #1
Screwdriver, Phillips #2
Screwdriver, Slotted #1
To remove and replace motherboard:
Step 1.
Remove power to luminaire.
Step 2.
Open chassis lid.
a. At electronics chassis, remove six 10-32x3/8"PPB screws
that secure chassis lid to chassis and open chassis lid.
Step 3.
Remove card cage PCBs (Figure 3-29).
CIB
LCB
LVS
CARD CAGE
TRANSFORMER
MOTHERBOARD
VMEEXP3
Figure 3-29. Location of Card Cage PCB Assemblies
a. At card cage assembly, gently pull and slide out low voltage
supply board
b. Gently pull and slide out control interface board.
c. Gently pull and slide out lamp control board.