File:Sega Saturn VA0.5 Schematics.pdf: Difference between revisions

Latest revision as of 16:41, 1 October 2026

Summary

Hand-traced schematics of an early Sega Saturn main board (VA0.5) and its CD subsystem, drawn by a Japanese hobbyist who signs as BABAX. They are not a Sega document. The PDF's title is "SEGASATURN CIRCUIT SCHEMATIC Rev.10" and its subject "SEGASATURN MAIN VA0.5+CDSUBSYSTEM"; three pages with Japanese annotations and a text layer, made with PrimoPDF on 13 September 2010. Described on Sega Saturn VA0.5 Schematics.

Source

Source not recorded at upload. BABAX published the drawings on his blog (green.ap.teacup.com/junker).

Author

BABAX

Licence

Copyright BABAX. No licence is stated. Hosted for preservation and repair reference.

File history

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	Date/Time	Dimensions	User	Comment
current	16:47, 26 March 2026	0 × 0 (501 KB)	Josh (talk \| contribs)	Sega Saturn VA0.5 board schematics

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 == Summary ==
-'''''SEGASATURN CIRCUIT SCHEMATIC Rev.10''''' &mdash; subject '''''SEGASATURN MAIN VA0.5 + CDSUBSYSTEM''''', three A-size sheets. Both titles are the document's own, recorded in the PDF metadata.
+Hand-traced schematics of an early [[Sega Saturn (Model 1)|Sega Saturn]] main board (VA0.5) and its CD subsystem, drawn by a Japanese hobbyist who signs as BABAX. They are not a Sega document. The PDF's title is "SEGASATURN CIRCUIT SCHEMATIC Rev.10" and its subject "SEGASATURN MAIN VA0.5+CDSUBSYSTEM"; three pages with Japanese annotations and a text layer, made with PrimoPDF on 13 September 2010. Described on [[Sega Saturn VA0.5 Schematics]].
-Japanese annotations throughout (for example 「IC24周辺回路」, "circuitry around IC24"), so a Sega Japan drawing rather than a regional edition. Main memory is shown as '''HM5241605TT17S''' SDRAM at IC3 and IC4 on +3.3 V.
+== Source ==
+Source not recorded at upload. BABAX published the drawings on his blog (green.ap.teacup.com/junker).
-The only VA0.5 source on this wiki, and the clearest confirmation here of Sega's post-Model-1 convention: '''CE1&ndash;CE53''', nearly consecutive, for electrolytics, with a separate plain <code>C</code> run for ceramics.
+== Author ==
+BABAX
-'''No parts list''' &mdash; values appear only where a drawing carries them &mdash; and '''no board layout''', so a designator found here cannot be located on a real board from this document alone.
+== Licence ==
+Copyright BABAX. No licence is stated. Hosted for preservation and repair reference.
-The PDF carries a text layer, which is unusual for a schematic here and makes net names and device numbers searchable.
-Described on [[Sega Saturn VA0.5 Schematics]].
-'''File size:''' 512,865 bytes.
-== Licensing ==
-'''Author:''' Sega Enterprises, Ltd.<br />
-'''Licence:''' Manufacturer service documentation, reproduced here for repair and preservation purposes. '''It is not freely licensed''' &mdash; copyright remains with the rights holder or its successors. The original carries the manufacturer's own restriction on reproduction, which is recorded on the document itself.<br />
-'''Source:''' Uploaded to this wiki in 2025. '''The original provenance was not recorded''' &mdash; the upload comment reads only "File uploaded with MsUpload", and no source was given. If you know where this scan came from, please add it.
 [[Category:Sega Schematics]]

Josh (talk | contribs)