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Graphics Interchange Format  |  1998-03-29  |  27.0 KB  |  1520x1978  |  1-bit (2 colors)
   ocr: CONTENTS Title Page BLOCK DIAGRAM 1 PARTS LIST 2 BOARD LAYOUT 3 PCB PARTS 4 KEYBOARD MATRIX 6 SCHEMATIC DRAWINGS #8256043 RP, ADDRESS & DATA BUFFERS, BUS ARBITRATION 10f13 MASTER TIMING 20f13 DRAM ADDRESS & REFRESH 30f13 DRAMS, SEGMENTS 1-2 40f13 DRAMS, SEGMENTS 3-4 50f13 ROM ARRAY, 1K X 8 STATIC RAM 6of13 SYSTEM DECODE 70f13 CRTC, VIDEO SHIFT REGISTER 8of13 VIDEO RAM, ADDRESS MUX, LATCH 9of13 KEYBOARD PORT RS232C 100f13 USER I/O PORTS, IEEE 11of13 SID, DOT CLOCK OSC, EXPANSION CONNECTOR 120f13 VIDEO OUTPUT, POWER INDICATOR 13of13