Service manual

2-1
Chapter 2:
Imagesetter
Functional
Analysis
2.1 Introduction
This chapter presents an overview of the Avantra 36/44 imagesetter. Described here
are the functions of all major subsystems, modules and submodules within the sys-
tem. This chapter covers both electrical and opto-mechanical subsystems, showing
the major functional block diagrams for each. Understanding the fundamental
operation of the individual subsystems is a valuable aid to service personnel in
diagnosing and troubleshooting system level problems.
The following topics are covered:
• System Overview
• Electronics Overview
• Electronics Packaging
• System Architecture
• Digital Engine Controller (DEC)
• Operator Control Panel
• Micro-controller
• OCP FLASHROM
• Liquid Crystal Display (LCD)
• Keypad
• OLP/Bridge Interface
• Speaker (Audio Interface)
• Carriage Sensor Driver Module (CSDM)
• Sensor Driver Module (SDM)
• SDM to DEC Interface
• Laser Driver Module (LDM)