M948

This document is a proprietary schematic and parts list for the Digital Equipment Corporation KI 10 Indicator Board (M948-0-1), copyrighted 1970 and intended for test and maintenance purposes only.

The schematic details the circuitry for a double-sided printed circuit board (M947/M948), showing connections for both component and etch sides (labeled FA and FB, respectively). It features an extensive network of resistors (many 1K, with a default of 3.3K, 1/4W, 5% unless otherwise indicated), capacitors (default .01UF, 100V, 20%), and a DEC6534D transistor (Q1). The circuit utilizes a +5V power supply.

A comprehensive parts list enumerates all components by DEC part number, description, and quantity, including:

• A DEC 6534D transistor.
• Various resistors (e.g., 26x 3.3K, 24x 1K, 1x 100 ohm).
• Capacitors (e.g., .047UF 16V, .01UF 100V).
• The etched circuit board itself.
• Related documentation such as module ECO history, assembly/drilling hole layout, and X-Y coordinate hole location.

The document also includes a "Transistor & Diode Conversion Chart" and specifies general resistor and capacitor characteristics.