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Chapter 1---Introduction
1-2
Model 330, 340SC and 370SC Service Manual
RTG Raster Timing Generator
SCB System Control Board
SPS System Power Supply
TTL Transistor-Transistor Logic
VAB Video Amplifier Board
VCO Voltage Controlled
Oscillator
VDB Vertical Deflection Board
VIN Video Input
VPB Video Processor PCB
VSYNC Vertical Sync
VTR Video Tape Recorder
1.2 Safety
High voltages and high intensity light sources exist in the Model 330, 340SC and
370SC Projector Systems and power supplies. Prior to performing any procedures,
adjustments or maintenance review the chapter on Safety Information at the front
of this manual.
1.3 Updates
This manual will be updated with information provided by Service Bulletins and
manual supplements whenever necessary.
1.4 Hardware Compatibility
The table below lists part numbers currently compatible between the Model 330,
340SC and 370SC projectors, and those parts that are different in each.
Table 1-1
Hardware Compatibility
Printed Circuit Boards
330
340SC
370SC
DIFFERENT
PART NUMBERS
Lamp Assembly
900611S
104651
104120
Ignitor
102083
102207
104475
System Power Supply
104070
104071
104038
High Voltage Power Supply
100562
100562
103769
SAME
Raster Timing Generator
100568
100568
100568
Horizontal Deflection Board
102523
102523
102523
Vertical Deflection Board
102521
102521
102521
Video Processing Board
104672
104672
104672