KDJ11-D/S CPU System Maintenance

This document outlines the maintenance and configuration procedures for the KDJ11-D/S central processing unit (CPU). It provides detailed instructions on:

• System Description: An overview of the KDJ11-D/S CPU modules and memory options (MSV11-P and MSV11-Q).
• Configuration: Guidelines for system setup, module order in the backplane, and configuration worksheets for BA23 and BA200-series enclosures.
• Troubleshooting: ROM-based diagnostic procedures, self-test error messages, and the use of the console ODT mode to identify and fix system issues.
• Disk Formatting: Instructions for formatting RD- and RX-series disk drives.

It is intended for use by Digital Field Service personnel and qualified self-maintenance customers.