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I haven't received the stronger acid yet. I should get it in the next couple of days.

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I posted the Speak and Read CD2705B die shots and ROM transcription. There are also higher resolution die shots:

www.seanriddle.com/speakandread.html

www.seanriddle.com/2705bmetal.xcf

www.seanriddle.com/2705bacid.xcf

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Looks good =)
I will start on it after finishing Dark Tower & Super Simon. MESS is scheduled for release in 2 days (it's every last sundaywednesday of the month)

Last edited by hap; 03/23/15 07:00 PM.
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Other MB electronic games not dumped yet:
* Plus One (a board game with a tetrahedral shaped electronic piece)
* Electronic Battleship (1982, does not talk, has a red codebook of setups which probably needs to be scanned since I don't see it on hasbro's manual site; used locking sliders to set the x and y to be shot at on either side. shares most of the same plastic molding as the later talking 1989 one)
* Electronic Stratego (1982)
* StarBird Space Avenger (1981? a handheld toy which makes a few sounds when buttons are pressed and makes lights light up. MAYBE has a ?16 pin? chip inside, may not be an MCU at all)

Non MB games:
* Lakeside Computer Perfection


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I've looked at Electronic Battleship; it looks like there are a couple of versions even before the talking variation. I think the original didn't have the code book, so it took a long time to get a game started because both sides had to manually enter every space of every ship. Then they added the code book which entered all your ships at once for you when you typed in a code. My brother had the game, and I don't remember a code book.

I've got Computer Perfection. It has a Panasonic MN1400.

Seems like all the Electronic Stratego's I've seen have been pretty expensive.

I just picked up a Plus One.

I've looked a little at Big Trak's, too.

Last edited by seanriddle; 03/24/15 12:25 AM.
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Originally Posted By seanriddle
I think the original didn't have the code book, so it took a long time to get a game started because both sides had to manually enter every space of every ship. Then they added the code book which entered all your ships at once for you when you typed in a code.

The versions with the code book allowed manual ship positioning as well, but you didn't have to enter every space of every ship - just the location of one end and the direction it was facing (north/south/east/west). It would verify that this didn't clash with any of the ships you'd already placed. It was quick enough.

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Originally Posted By Vas Crabb

The versions with the code book allowed manual ship positioning as well, but you didn't have to enter every space of every ship - just the location of one end and the direction it was facing (north/south/east/west). It would verify that this didn't clash with any of the ships you'd already placed. It was quick enough.


The 1989 talking version does this as well. I'm wondering if we shouldn't attack that version first, as the boards seem reasonably common on eBay, and I don't really want to destroy the one I have here. (once we figure out the test mode for dumping tsp50cxx devices though, I wouldn't mind lending mine out for non-destructive dumping)

The 1989 version (but not the 1982 one)'s codebook (i.e. the black codebook) is on Hasbro's site: http://www.hasbro.com/common/instruct/Battleship(electronic)talking.PDF

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sean: I poked around and I might be able to dump the MN1400. It has a test pin anyways. I found fairly complete documentation on it and pinouts and such. How many pins is it?

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Kevin- it's a 28-pin DIP, labeled MN1400ML, but I torched it several months ago:
http://www.seanriddle.com/mn1400.html
I haven't tried to transcribe the bits. The ROM array looks similar to the F8 3853 PSU's array.

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Big Trak has a TMS-1000, labeled MP3301A:

http://www.djibnet.com/photo/big+trak/bigtrak-pcb-with-component-numbers-150691242.html

http://commons.wikimedia.org/wiki/File:Big_Trak_-_Mother_Board.jpg

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