PRG Best Boy Field Service Manual - Manual (Page 59)

BEST BOY 4000 ® SPOT LUMINAIRE FIELD SERVICE MANUAL 51
Replacing Head Controller PCB
Parts:
24.9816.0640 / 2.3749A-P50 1 EA PCB ASSY, HEAD MOTOR AND FAN DRIVER
Tools & Supplies:
#2 Phillips screwdriver
WARNING: Remove power from luminaire before performing any maintenance procedures.
CAUTION: Always use anti-static precautions when working with PCBs.
To replace the Head Controller PCB:
Step 1. Remove power from luminaire.
Step 2. Remove both Head Covers. (Refer to "Removing Head Covers" on page 24.)
Step 3. Remove Head Fan and Bracket Assembly. (Refer to "Replacing Head Fan" on page 45.)
Step 4. At Head Controller PCB, disconnect all cables (Figure 3-25).
Figure 3-25: Head Controller PCB Cable Connections
DC
P
W
R
J2
7
HE
A D
FAN
J16
YOKE
RLY J17
HOT
FAN J7
H
EAD
TE
M
P
J6 EX
T
FANS
J18
BACK
BEST BOY HEAD CONTROLLER
24-9816-0640 REV
W
H EEL J2
6
GA
G
INDE
X
J2
5
GA
G
ZOOM
3 J5 Z OOM J5 1
ZOO
M
2 J2
3
EOT J2
4
GAG
G1
Z OOM
G3
ZO
O M
G2 Z OOM