C
HAPTER
3. M
AINTENANCE
P
ROCEDURES
3-115
02.9631.0010
CONFIDENTIAL
15 Jan 98
3.3.20
VL2C
Fan Drive Plus PCB Removal and Replacement
Parts:
1 EA
PCB ASSY, FAN DRIVE PLUS, VL2C (24.9623.0161)
Tools:
Screwdriver, Phillips #1
Screwdriver, Phillips #2
To remove and replace VL2C fan drive plus PCB, (Figure 3-40):
FAN DRIVE PLUS
PCB ASSEMBLY
4-40 X 1/4"PPB SCREW
VSB
ELECTRONIC
CHASSIS
#4 INTERNAL TOOTH
LOCK WASHER
DISCONNECT
DC-DC MTA
Figure 3-40. VL2C Fan Drive Plus Board Removal and Replacement
WARNING: Stored charge in capacitors can cause electrical shock. Care
should be taken when power is applied to luminaire and for 10 minutes
after removing power from the luminaire. Always use caution when
working near capacitors.
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 APS from chassis. Refer to Arc Power Supply
Removal and Replacement paragraph.
Step 4.
Disconnect MTA connector from DC-DC PCB.