Rainbow

The Rainbow User's Service Guide provides detailed instructions for users to remove and replace major parts of the Rainbow computer. The guide is organized logically to assist users in identifying and resolving issues through a sequence of independent removal and replacement procedures. Key sections include:

• Removal and Replacement Instructions: Covers the system unit, keyboard, monitor, floor stand, diskette drives, hard disk drives, and internal components like boards and power supply.
• Appendix A: Troubleshooting: Contains a comprehensive list of symptoms, possible causes, and corrective actions, including a detailed table of internal diagnostic test messages and their light display patterns on the back of the system unit.
• Appendix B: Rainbow Computer Parts: Provides a reference list of spare parts and their corresponding Digital part numbers.

The manual also includes instructions for running diagnostic tests using the system's diagnostic diskette to verify system integrity after hardware changes.