Vari Lite VL2B, Service Manual, Page: 8 / 310

viii
V
ARI
*L
ITE®
-
VL2B

AND
VL2C™ S
POT
L
UMINAIRE
S
ERVICE
M
ANUAL
CONFIDENTIAL 02.9631.0010
15 Jan 98
Contents (continued)
Chapter 3. Maintenance Procedures (continued)
3.3.19 Thumbwheel Switch Assembly Removal and Replacement ..............3-113
3.3.20
VL2C Fan Drive Plus PCB Removal and Replacement.....................3-115
3.3.21
VL2C DC-to-DC Converter PCB Removal and Replacement ..........3-117
3.3.22 Stuck Truss Hook Removal and Truss Hook Receptacle
Removal and Replacement ..............................................................3-119
3.3.23
VL2C Reflector/Mirror Assembly Removal and Replacement ..........3-123
3.3.24 Calibration Procedures ....................................................................3-125
3.3.24.1 Color and Gobo Wheel Sensor Calibration ................................3-125
3.3.24.2 Control Interface Board Trimpot Calibration .............................3-129
Chapter 4. Illustrated Parts Breakdown
4.1 Drawing Trees.................................................................................. 4-3
4.1.1
VL2B Spot Luminaire (20.5002.0004)................................................ 4-3
4.1.2 VL2C Spot Luminaire (20.9637.0001)................................................ 4-5
4.2 Parts Breakdown ............................................................................. 4-6
4.2.1 Assembly, Hooks and Covers............................................................. 4-6
4.2.2 Assembly, Head ................................................................................. 4-8
4.2.3 Assembly, Gobo/Beam Bulkhead Projector ...................................... 4-10
4.2.4 Assembly, Gobo Wheel .................................................................... 4-12
4.2.5 Assembly, Beam Size Iris ................................................................. 4-13
4.2.6 Assembly, Brightness/Focus Bulkhead ............................................. 4-15
4.2.7 Assembly, Brightness Iris ................................................................. 4-19
4.2.8 Assembly, Color Filter Bulkhead ...................................................... 4-20
4.2.9 Assembly, Filter Wheel #1................................................................ 4-22
4.2.10 Assembly, Filter Wheel #2................................................................ 4-23
4.2.11 Assembly, Reflector ......................................................................... 4-24
4.2.12 Assembly, Lamp............................................................................... 4-26
4.2.13 Assembly, Yoke Rails & Covers....................................................... 4-29
4.2.14 Assembly, Pan/Tilt Mechanism......................................................... 4-32
4.2.15 Cable Assembly, Tilt ........................................................................ 4-34
4.2.16 PCB Assembly, Yoke Cable Termination ......................................... 4-35
4.2.17 Assembly, APS Ignitor..................................................................... 4-36
4.2.18 PCB Assembly, APS Ignitor............................................................. 4-37
4.2.19 Cable Assembly, APS Ignitor ........................................................... 4-38
4.2.20 Assembly, Electronics Chassis.......................................................... 4-39
4.2.21 Assembly, Chassis Cover.................................................................. 4-42
4.2.22 Cable Assembly, Pan Mech – Mother Bd.......................................... 4-44
4.2.23 Cable Assembly, Yoke ..................................................................... 4-45
4.2.24 Assembly, Arc Power Supply ........................................................... 4-47
4.2.25 Assembly, Arc Pwr Supply Chassis .................................................. 4-48
4.2.26 Cable Assembly, ACB-LPS Interconnect.......................................... 4-51