File:Atari SR98 power supply schematic (C103594 sheet 7).png
Summary
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Schematic of the Mitsumi SR98 switching power supply used in long-case Atari ST computers: Atari Corporation drawing C103594, "Power Supply 27 W 220 V Sweden", sheet 7 of 8, revision A (1987). It shows the mains input with the 250 V T1A fuse, line filter L101, bridge D101, inrush resistor R101 and reservoir C104; the switching transistor Q101 (2SC2979) and its drive circuit; the +5 V and +12 V output rectifiers and filters; the TL431-type reference IC201 with the divider R201, R202 and the 5 V adjustment VR201; and the six-way output connector CH2 with its wire colours. Rendered from page 8 of File:Atari SR98 Power Supply Specification C103594.pdf and turned to landscape.
Source
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File:Atari SR98 Power Supply Specification C103594.pdf, page 8 (retrieved 2026-10-25 from exxos's compilation at https://www.exxosforum.co.uk/atari/last/psu/index.htm).
Author
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Atari Corporation.
Licence
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Copyright Atari Corporation. Hosted for preservation and repair reference, with the source cited.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 10:33, 25 October 2026 | | 2,200 × 1,550 (304 KB) | Josh (talk | contribs) | Upload for Atari 1040STF power supply repair guide |
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