Vari Lite VL500 Wash Luminaires, Service Manual

Page: 68 / 206

VARI
❋
LITE ® - VL500™ L
UMINAIRE
S
ERVICE
M
ANUAL
3 6 17 -Ju ly- 200 6 0 2 . 9 6 8 5 . 0 0 1 0 0
Main Control PCB/Fan Assembly Replacement
Parts:
21.9685.0731 1 EA ASSY, VL500 MAIN CONTROL PCB/FAN
Tools:
• 1/4" Hex Nutdriver
• #2 Phillips Screwdriver
WARNING:
Remove power from luminaire before performing maintenance.
To remove and replace main control PCB/fan assembly:
Step 1. Remove power from luminaire.
Step 2. Remove display-side yoke arm cover by removing four 6-32x3/8" screws.
Step 3. Remove Display PCB as described in,
“Incandescent Lamp Socket Assembly (VL500
and VL500D Only) Replacement” on page 31
.
Step 4. At Main Control PCB/Fan Assembly, disconnect the following wiring connections:
a. Pan/Tilt wiring harness
b. Head motor wiring harness
c. 3-position connector (Dimmer communications - VL500D and VL500 80V
models only)
d. 10-position AMP connector (Display Communications)
e. 4-position connector (DMX communications)*
CAUTION:
*This connector is similar to the connector for the LVS Fan/Temperature
Switch connector used on the Display PCB. It is imperative that you do not confuse the two.
f. 3-position connector (24V DC)
g. 5-position connector (Ballast communications - VL500A models only)
Step 5. Remove two 6-32x3/8" PPZ screws (one has a ground wire terminal attached).