Introduction; Optical Section - JVC 250 Service Manual

2.0 System De scription
Contents

2.1 Introduction .................................................................................................. 2-1

2.2 Electrical Section.......................................................................................... 2-2
Incoming Power Circuit ............................................................................. 2-2
Power Supplies........................................................................................... 2-2
Igniter Assembly ........................................................................................ 2-3

2.3 Optical Section ............................................................................................. 2-3

Arc Lamp Module ...................................................................................... 2-3
Optical Path................................................................................................ 2-3
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ILA s.......................................................................................................... 2-4
CRTs .......................................................................................................... 2-4
Relay Lenses .............................................................................................. 2-5
Projection Lens........................................................................................... 2-5
2.4 Electronic Section ........................................................................................ 2-5
VICs ........................................................................................................... 2-5
PCBs........................................................................................................... 2-6
CRT/Yoke Assemblies............................................................................... 2-7
2.5 Miscellaneous Items..................................................................................... 2-7
Projector Covers......................................................................................... 2-7
IR Detectors................................................................................................ 2-7
Cooling Fans .............................................................................................. 2-7
Air Filters ................................................................................................... 2-7
EMI Shield ................................................................................................. 2-8
Introduction
2.1
This chapter is divided into four basic sections: the Electrical Section, the Optical
Section, the Electronic Section and the Miscellaneous Items. Each section gives a
basic description of the components in the section and a description of the
function of those components. This provides an overall view of the projector and
its subsystems for a general understanding of how these systems contribute to the
function of the projector.
Model 250 Service Manual
Chapter 2---System Description
2-1