File:Mega CD Schematics A3.pdf: Difference between revisions
Josh uploaded a new version of File:Mega CD Schematics A3.pdf |
P4 documentation drive: replace 'File uploaded with MsUpload' with a real summary of what the document is, what it establishes, its text-layer state and file size, an honest licence block and an honest statement that the original provenance was not recorded |
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Mega CD | == Summary == | ||
A3 sheets from a Sega service manual for the '''Mega CD (Model 1)''', numbered 67 to 106 of the source document. | |||
Internal block diagrams of the Sega custom LSIs — the first sheet is "MAIN BOARD IC2 3/3" for part '''315-5548''' — followed by component-placement drawings. The last sheet is '''"IC BD MEGA-CD MAIN BD"''', Sega part '''837-8015-01 (D-3/3)''', sub-assembly '''610-5266-01''', dated 1992, solder side, '''with a value printed against each fitted position''' and several positions marked NOT USED. | |||
== Upload defect == | |||
'''The file originally uploaded here was truncated and would not open.''' It stopped at an exact 4,096-byte boundary partway through an image stream, with no cross-reference table, no trailer and no end-of-file marker — every normal PDF viewer refused it. The missing bytes never reached the wiki; this is an upload fault, not a scanning fault. | |||
A repaired version has been uploaded over it. The repair is mechanical: the intact page objects were kept unchanged and a valid page tree, catalogue and cross-reference table were rebuilt around them. '''No image content was altered.''' The broken original remains in this file's history. | |||
'''Nine complete A3 sheets survive.''' The tenth sheet's image was cut off and is not recoverable from this upload; a complete copy should replace this file if one is found. | |||
No text layer. Described on [[Mega CD / Sega CD Schematics]]. | |||
'''File size:''' 32,501,760 bytes. | |||
== Licensing == | |||
'''Author:''' Sega Enterprises, Ltd.<br /> | |||
'''Licence:''' Manufacturer service documentation, reproduced here for repair and preservation purposes. '''It is not freely licensed''' — 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''' — 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]] | |||
Revision as of 01:34, 25 September 2026
Summary
A3 sheets from a Sega service manual for the Mega CD (Model 1), numbered 67 to 106 of the source document.
Internal block diagrams of the Sega custom LSIs — the first sheet is "MAIN BOARD IC2 3/3" for part 315-5548 — followed by component-placement drawings. The last sheet is "IC BD MEGA-CD MAIN BD", Sega part 837-8015-01 (D-3/3), sub-assembly 610-5266-01, dated 1992, solder side, with a value printed against each fitted position and several positions marked NOT USED.
Upload defect
The file originally uploaded here was truncated and would not open. It stopped at an exact 4,096-byte boundary partway through an image stream, with no cross-reference table, no trailer and no end-of-file marker — every normal PDF viewer refused it. The missing bytes never reached the wiki; this is an upload fault, not a scanning fault.
A repaired version has been uploaded over it. The repair is mechanical: the intact page objects were kept unchanged and a valid page tree, catalogue and cross-reference table were rebuilt around them. No image content was altered. The broken original remains in this file's history.
Nine complete A3 sheets survive. The tenth sheet's image was cut off and is not recoverable from this upload; a complete copy should replace this file if one is found.
No text layer. Described on Mega CD / Sega CD Schematics.
File size: 32,501,760 bytes.
Licensing
Author: Sega Enterprises, Ltd.
Licence: Manufacturer service documentation, reproduced here for repair and preservation purposes. It is not freely licensed — 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.
Source: Uploaded to this wiki in 2025. The original provenance was not recorded — 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.
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 01:33, 25 September 2026 | 0 × 0 (29.02 MB) | Josh (talk | contribs) | Repair a truncated upload: the stored file had no xref, trailer or EOF and would not open in any PDF viewer. Nine intact A3 page objects preserved byte-for-byte; page tree, catalogue and cross-reference table rebuilt around them. No image content altered. The tenth sheet's image was lost in the original truncation. |
| 21:01, 26 March 2026 | 0 × 0 (31 MB) | Josh (talk | contribs) | Mega CD board schematics (A3 format) |
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