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JVC
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330
JVC 330 User Manual
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Safety
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Model 330, 340SC, and 370SC Service Manual
WA
RNING!
!!
Various procedur
es in this manual inv
olv
e the removal
and replacement of system subassembli
es. Ensure that the projector AC
power
plug is
removed from the AC outl
et
prior
to attempting any
of these procedures.
7
9
Table of Contents
2.0 Functional Descriptions
13
Service Manual
1
Safety Information
3
Heat Safeguards
5
Light Safeguards
5
Power Supply
7
Acronyms Used in Manual
10
Table of Contents
13
Chapter 2 -Functional Descriptions
14
Cover and Base
14
Electronics Systems Overview
15
External Power Requirements
15
System Power
17
System Power Supply
17
Arc Lamp Ignitor
21
High Voltage Power Supply
24
Card Cage
26
Circuit Boards
27
Raster Timing Generator Board (RTG) P/N 100568
30
Serial Communication
34
Horizontal Deflection Board P/N 102523 (HDB)
37
Geometric Correction
40
Vertical Deflection Board P/N 102521(VDB)
44
Video Processor Board P/N 104672 (VPB)
55
Gamma Correction
58
Video Amplifier Board P/N 103567 or 103774 (VAB)
66
Video Signal
67
System Controller Board P/N 104668 (SCB)
71
Backplane Board P/N 100571
83
Optical Section
84
CRT Assembly
84
Arc Lamp Assembly
87
Optical Subassemblies
88
Image Light Amplifier
88
3.0 Service Adjustments
91
Service Adjustments
91
Chapter 3
93
CRT Yoke Rotation
93
Vertical Size Tracking
95
Vertical Linearity Tracking
96
Horizontal Size Tracking
97
ILA Bias Settings
98
CRT Mechanical Focus
99
Electronic Focus
102
Jumper Settings
103
Front/Rear Jumpers
103
Inverted Vertical Jumpers
105
G2 Adjustment
106
Sensitivity/Threshold Offset
106
G2 Setting
106
Arc Lamp Alignment and Focus
108
Model 330 Arc Lamp Alignment and Focus
108
Model 340SC and 370SC Arc Lamp Alignment and Focus
110
Arc Lamp Current Adjustment
111
4.0 Maintenance Remove/Replace)
114
Chapter 4 -Maintenance
118
Projector Covers
118
Ventilation Filters
118
Arc Lamp Assembly
119
Model 330 Ignitor and Arc Lamp Assembly (P/N 900611S) Removal
119
Model 340SC and 370SC Ignitor Assy/Arc Lamp Assy (P/N 104651 or 104120) Removal
121
Collimating (Condensing) Lens Adjustment
123
System Power Supply
124
Electronics Module
126
Cathode Ray Tube (CRT)
128
Model 330 CRT Removal
128
Model 340SC and 370SC CRT Removal
131
Video Amplifier Board (VAB)
131
CRT Yoke
132
High Voltage Power Supply (HVPS)
133
Card Cage (Printed Circuit Boards)
134
Image Light Amplifier Assembly
135
Projection Lens
136
SCB) Socket Battery Replacement
138
Recommended Spares
140
Troubleshooting
141
General Information
141
Glossary of Terms
155
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JVC 330 Specifications
General
Brand
JVC
Model
330
Category
Projector
Language
English
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