2.0 Functional Descriptions
Contents
2.1 Cover and Base............................................................................................2-2
2.4 System Power ..............................................................................................2-5
System Power Supply................................................................................2-5
Arc Lamp Ignitor.......................................................................................2-9
2.5 Card Cage....................................................................................................2-14
2.6 Circuit Boards .............................................................................................2-15
2.7 Optical Section ............................................................................................2-72
CRT Assembly ..........................................................................................2-72
Arc Lamp Assembly..................................................................................2-75
This chapter provides functional descriptions of the major assemblies in the
Model 330, 340SC and 370SC projectors.
Emphasis is placed on a description of system components to the functional block
level. A number of block diagrams are provided for user reference.
Figure 2-1 provides a block diagram overview of the HJT Model 330, 340SC and
370SC projectors. For simplicity, each major electronics assembly is shown with
signal paths between appropriate functional units. Major physical and electronics
assemblies will be described in more detail in the following sections of this
chapter.
Model 330, 340SC and 370SC Service Manual
Chapter 2-Functional Descriptions
2-1