Atari 520ST Schematic (C070231)
Drawing C070231, "Schematic Diagram (520ST/260ST)", is Atari (Japan) Corporation's three-sheet, D-size schematic of the main board of the Atari 520ST and Atari 260ST. The title block gives next assembly CA070052, used on the 520ST; the sheets were drawn in June and July 1985 and approved in September 1985. The revision block on sheet 1 records revisions K (ECO 00191, 17 January 1986), L (ECO 00217, 27 March 1986) and M (ECO 00225, 22 April 1986).
Contents
- Sheet 1: power input (J9), MFP, ACIAs, MIDI, keyboard connector, RS-232, printer, hard disk and floppy ports, DMA controller
- Sheet 2: 68000, Glue, memory controller, ROM and RAM
- Sheet 3: video and RF section
What it settles
It is the main board schematic that the hosted scan of Atari's 520ST/1040ST Computer Field Service Manual lacks.
What this document does not contain
- No parts list and no silkscreen; those are in the field service manual.
- It is the 520ST board (CA070052), not the 1040ST or the later STF/STFM boards.
Pages that cite this document
- Atari 520ST: cites Section 1, pp. 1.1–1.6, Section 2, pp. 2.1–2.14, Section 3
- Atari 520ST and 1040ST Computer Field Service Manual: cites Section 8
- Atari 520ST+
- Atari 520STM: cites Sheet 3, Section 1, p. 1.1, Section 2, pp. 2.7–2.8
- Atari ST Engineering Hardware Specification: cites Section 12
Download: Atari 520ST Schematic C070231.pdf