File:Atari Mega ST Owner's Manual (1987).pdf

Atari Corporation, Computer MEGA ST Owner's Manual, copyright 1987. 144 scanned pages. This copy was recompressed to 120 dpi greyscale from the 98 MB Internet Archive scan so that it can be hosted; the OCR text layer is kept. Described on Atari Mega ST Owner's Manual.

Contents useful for repair, with printed page numbers:

• Clock batteries (pp. 6–7): the real-time clock takes two AA cells in the battery housing on the top of the computer, at the rear of the left fan vent.
• The computer's panels (pp. 15–18), including the fan, the left-side keyboard jack and cartridge slot, and the top-panel battery housing (p. 18).
• Appendix B, troubleshooting and preventive maintenance (p. 103 onwards).
• Appendix C, specifications (pp. 109–110): MC68000 at 8 MHz; 1, 2 or 4 MB RAM and 192 KB ROM; built-in power supply rated +5 V at 3 A, +12 V at 1 A and −12 V at 30 mA; 95 W maximum consumption; 67 × 340 × 400 mm and 4.3 kg; detachable 94-key keyboard.
• Appendix D, connector pinouts (p. 111 onwards).

The manual is a user guide. It has no schematic, parts list or service procedure; for those see File:Atari Mega ST Service Manual.pdf.

https://archive.org/details/mega-st-owners-manual (Internet Archive), retrieved 2026-10-01.

Atari Corporation.

Copyright Atari Corporation, 1987. Hosted for preservation and repair reference.