PRG Best Boy Field Service Manual - Manual (Page 81)

BEST BOY 4000 ® SPOT LUMINAIRE FIELD SERVICE MANUAL 73
Replacing Interface/LVS Assembly
Parts:
21.9816.0811 / 2.3749A-P15 1 EA ASSY, INTERFACE/LVS
Tools & Supplies:
#2 Phillips screwdriver
5/32" Allen wrench, T-bar
WARNING: Remove power from luminaire before performing any maintenance procedures.
To replace the Interface/LVS assembly:
Step 1. Remove power from luminaire.
Step 2. Remove Interface/LVS-side Cover. (Refer to "Removing Upper Enclosure Covers" on page 27.)
Step 3. At front of Interface/LVS Assembly, remove four 10-32 x 3/4" socket head screws (Figure 3-43).
Step 4. Remove one 10-32 x 3/8" PPB screw that secures ground wire lug.
Step 5. At Main Controller PCB, disconnect four cables as shown in Figure 3-43.
Figure 3-43: Disconnecting Interface/LVS Cables
FA
N J8
CH
AS
CO
NT
J6
MA
IN
J8
J6
J2
FAN 1
FAN 2
MA
IN
CON
T
ROL
J2
J5
CANBUS
10-32 x 3/4" Socket Screw (4)
10-32 x 3/8" PPB Screw
WIRING CONNECTIONS
Ground Wire
Main Controller
Interface/LVS Assembly
Enclosure