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Sensor is one of the Rockwell chips that I sent to Kevin to try to dump before I decap it.

It looks like Lexor is more interesting; when I find a cheap enough one I'll pick one up.

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Originally Posted By Lord Nightmare
http://www.ebay.com/itm/VINTAGE-1978-SCRABBLE-SENSOR-ELECTRONIC-WORD-GAME-IN-BOX/121524520482

... Well, that's a new one to me. Never heard of that at all. Guessing tms1000 based but god knows.

That's made by Selchow & Righter, same ones that made this:
http://www.handheldmuseum.com/Misc/SelchowReadersDigest.htm

I think I still have a Readers Digest, I'll see if I can find it...
That also reminds me of Monty Plays Scrabble:
http://www.handheldmuseum.com/Misc/RitamMontyPlaysScrabble.htm
Don't think that's in MESS... It's actually Z80 based with normal PROM/EPROMS. I've dumped the ROMs (links on my page), I can send one to someone if they need the harsware to emulate it...

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I would, but my plate is full =(

Could you post high res photos of the pcbs(front & back) making the labels readable?

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No worries, don't think anyone is in a hurry to play it... smile

Here's the original pics:
http://www.handheldmuseum.com/Z_Imgs/MESS/Ritam-MontyCirc.jpg
http://www.handheldmuseum.com/Z_Imgs/MESS/Ritam-MontyCircBack.jpg

And there's also a Master Monty Plays Scrabble:
http://www.handheldmuseum.com/Misc/RitamMasterMontyPlaysScrabbleBlue.htm
That appears to have been made possible by hand-modifying the original circuit boards... More complex Scrabble logic, and larger built-in memory.
Board close-ups:
http://www.handheldmuseum.com/Z_Imgs/MESS/Ritam-MasterMontyBlueCirc.jpg
http://www.handheldmuseum.com/Z_Imgs/MESS/Ritam-MasterMontyBlueCircBack.jpg
The extra logic chip is actually just glued, upside-down, to the circuit board... I'd have to pop that off to see what it is...

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A normal Z80 with ROMs sounds like something many people here could pick up if they're sufficiently bored smile

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Yeah, even I'm tempted. Its LCD controller, the SED1503, isn't in MAME exactly, but a newer model is (the SED1520 src/emu/video/sed1520.c).

Docs for the SED1503, used on this board, are here:
http://lcdhype.condense.de/index.php?showtopic=2382

/Andrew

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Originally Posted By seanriddle
I assume the 3 Blackjacks have the same chip, but I've only looked at the D3. You may not be able to get into the handheld one easily- I had to bend the Radio Shack blackjack calculator's case to get it open.


Found my D-2... This thing is very well made, metal screw thread (instead of just screwing into plastic), well made buttons like ones from an old calculator (which it doubles as)... This thing was meant to be _used_...

The chip in mine is Rockwell, labelled: A4821CA (date code 7721).

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I got melody madness today. It contains a PIC1655A-094 which I already dumped and checked. code looks OK. Need to trace out the PCB yet. The HW is very similar to le boom.

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Originally Posted By kevtris
I got melody madness today. It contains a PIC1655A-094 which I already dumped and checked. code looks OK. Need to trace out the PCB yet. The HW is very similar to le boom.


/me does happy dance!!! Thanks for that smile





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Bowzer approves! smile

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