View topic - John Sands SM1200 Micromodem 3 for Sega SC-3000, SegaCom/AutoCom cartridges

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Forum Index Main John Sands SM1200 Micromodem 3 for Sega SC-3000, SegaCom/AutoCom cartridges

Author	Message
Bock Site Admin Joined: 08 Jul 2001 Posts: 8745 Location: Paris, France	John Sands SM1200 Micromodem 3 for Sega SC-3000, SegaCom/AutoCom cartridges Posted: Sun Dec 22, 2024 5:14 pm Last edited by Bock on Sun Dec 22, 2024 5:25 pm; edited 3 times in total
	I posted some photos of a loose unit a long time ago but this didn't have a proper thread. https://www.smspower.org/forums/6447-JohnSandsSC3000#29517 Here are photos of a boxed unit. IMG_9163.jpg (206.79 KB) IMG_9164.jpg (167.98 KB) IMG_9165.jpg (133.1 KB) IMG_9166.jpg (180.23 KB) IMG_9159.jpg (273.55 KB) IMG_9156.jpg (214.28 KB) IMG_9176.jpg (267.44 KB) IMG_9261.jpg (261.45 KB) IMG_9262.jpg (378.25 KB) IMG_9263.jpg (217.07 KB) IMG_9264.jpg (254.95 KB)
Bock Site Admin Joined: 08 Jul 2001 Posts: 8745 Location: Paris, France	Photos of the SegaCom software Posted: Sun Dec 22, 2024 5:16 pm
	I also created a page for it here: https://www.smspower.org/Games/SegaCom-SC (releasing dumps very soon) IMG_9168.jpg (103.27 KB) IMG_9169.jpg (84.23 KB) IMG_9170.jpg (159.82 KB)
Bock Site Admin Joined: 08 Jul 2001 Posts: 8745 Location: Paris, France	Photos of SegaCom/AutoCom development/prototypes cartridges Posted: Sun Dec 22, 2024 5:19 pm
	Added CRC32 on post-it as they look similar. The two cartridges are known retail cartridge (with their identical looking boxes). The eight cartridges below were apparently owned by the creator at Acme Software. AutoCom appears to the successor for the SegaCom, for the Micromodem 4. As far as I know the Micromodem 4 was not released, but I may be wrong. I created a page for AutoCom as well: https://www.smspower.org/Games/AutoCom-SC IMG_9174.jpg (272.54 KB)
Bock Site Admin Joined: 08 Jul 2001 Posts: 8745 Location: Paris, France	Board pictures Posted: Sun Dec 22, 2024 5:21 pm
	Here's the open modem. The main chip appears to be a AM7910DC which is a "modem in a chip" thing by AMD: https://www.alldatasheet.com/datasheet-pdf/pdf/124528/AMD/AM7910DC.html Attaching the datasheet PDF. IMG_9267.jpg (590.13 KB) IMG_9268.jpg (539.04 KB) IMG_9269.jpg (477.91 KB) IMG_9270.jpg (500.84 KB) IMG_9272.jpg (314.45 KB) IMG_9273.jpg (323.24 KB) AM7911.PDF (1.81 MB)
Bock Site Admin Joined: 08 Jul 2001 Posts: 8745 Location: Paris, France	Manual scans Posted: Sun Dec 22, 2024 5:28 pm
	Scan of the Micromodem 3 manual (12 pages) Scan of the SegaCom manual (22 pages) SC-AU-Micromodem3-Manual-Page-01.jpg (235.26 KB) SC-AU-SegaCom-Manual-Page01.jpg (321.5 KB) John Sands Micromodem 3 - Manual.pdf (9.91 MB) SegaCom - Manual.pdf (22.13 MB)
Bock Site Admin Joined: 08 Jul 2001 Posts: 8745 Location: Paris, France	Flyer/catalog scans Posted: Sun Dec 22, 2024 5:32 pm
	Scans of two 4xA4 flyers/catalogs. The second one is folded vertically and required some stitching. SC-AU-MicroModem3-Flyer1-Preview.jpg (239.43 KB) SC-AU-MicroModem3-Flyer2-Preview.jpg (271.73 KB) John Sands Micromodem 3 - Flyer 1 (300 dpi).pdf (17.54 MB) John Sands Micromodem 3 - Flyer 2 (300 dpi).pdf (12.8 MB)
asynchronous Joined: 14 Aug 2000 Posts: 770 Location: Adelaide, Australia	John Sands SM1200 Micromodem 3 for Sega SC-3000, SegaCom/AutoCom cartridges Posted: Mon Dec 23, 2024 2:06 am
	Noice.
kamillebidan Joined: 25 Feb 2013 Posts: 395 Location: Osaka	Posted: Mon Dec 23, 2024 12:53 pm
	Thank you! (I temporarily post this here, if there will be a post on the floppy versions I'll move it there)
Bock Site Admin Joined: 08 Jul 2001 Posts: 8745 Location: Paris, France	Posted: Sat Feb 01, 2025 6:00 pm
	12 dumps have been published: https://www.smspower.org/forums/20445

Forum Index Main John Sands SM1200 Micromodem 3 for Sega SC-3000, SegaCom/AutoCom cartridges