Hughes JVC 200, Руководство по обслуживанию

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Chapter 2---System Description
2.0 System Description
Contents
2.1 Introduction .............................................................................. 2-1
2.2 Optical System......................................................................... 2-2
2.2.1 Image Path................................................................... 2-2
2.2.2 Arc Lamp Light Path .................................................... 2-4
2.3 Electronics System .................................................................. 2-7
2.3.1 General Description ..................................................... 2-7
2.3.2 Power Supplies ............................................................ 2-8
2.3.3 Video Input Cards ........................................................ 2-14
2.3.4 Video Processor PCB .................................................. 2-24
2.3.5 Video Amplifier PCB .................................................... 2-30
2.3.6 System Controller PCB ................................................ 2-34
2.3.7 Raster Timing Generator PCB ..................................... 2-40
2.3.8 Horizontal/Vertical Deflection PCB .............................. 2-45
2.3.9 Convergence/Deflection PCB ...................................... 2-51
2.3.10 Scan Reversal PCB ..................................................... 2-57
2.3.11 Backplane PCB............................................................ 2-62
2.4 Image Light Amplifier Technology ........................................... 2-63
2.1 Introduction
The assemblies and components in the Model 200 projector are
contained mainly in the five sections below:
•
The Optics Assembly Section is located at the front area of
the projector. The Optics Assembly Section includes the
Condensing Lens, Cold Mirror/IR Filter (
CAUTION!
:
The term "cold mirror" is used because
the mirror passes infrared light and its reflection contains only
"cold' light that does not transmit appreciable heat. As a result
of the absorption of infrared heat radiation, "cold" mirrors can
get very hot.
), Ultraviolet Filter, Dichroic Mirror Assembly,
Prisms, Combining Prism, Image Mirrors, and the Zoom
Projection Lens.
•
The Arc Lamp Assembly section is located in the right front
area of the unit. It contains the Ignitor, Laser Power Supply,
Xenon Arc Lamp and Elliptical Reflector.
Model 200 Service Manual 2-1