VT340+ Model G

This service guide is intended for Digital Customer Services Engineers and provides comprehensive instructions for maintaining and repairing the VT340+ Model G color video terminal. The document begins with a product description, outlining monitor variations, features, and compatible data input devices, along with lists of necessary tools and recommended spare parts.

Key sections of the guide include:

• Testing and Troubleshooting: Details how to run power-up and diagnostic self-tests, interpret error messages, and address general operational issues.
• Removing and Replacing FRUs (Field Replaceable Units): Provides step-by-step procedures for replacing various components like the rear panel, terminal control module, video amp module, and power supply/monitor module, emphasizing static protection and critical safety warnings, especially when handling the CRT.
• Aligning the Video Terminal: Offers detailed instructions for adjusting the video monitor's display, including setting cutoff, color gain, horizontal and vertical centering, phase, rectangularity, width, height, linearity, and focus using specific test patterns and controls.
• Using Set-Up: Explains how to navigate and utilize the terminal's set-up utility to configure operating features and save settings.

The guide also includes appendices covering related documentation, troubleshooting the Session Support Utility, exploded view diagrams of FRUs with part numbers, specifications for various cables and adapters, and a physical/functional diagram detailing component interconnections and pin assignments.