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RF Generation Message Board | Gaming | Video Game Generation | Help with Prototype device 0 Members and 1 Guest are viewing this topic. « previous next »
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Author Topic: Help with Prototype device  (Read 646 times)
Crazy_Opossum
Virtual Boy
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United States
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« on: September 23, 2020, 10:37:32 PM »

Hey All,

I recently received a prototype Coleco ADAM Expansion. I have been searching for a while and have found very little info about it and I was wondering if anyone can help me or point me in the direction of someone who can help m dump the EPROM on it. Photos Posted below.









Thanks!
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~The Craziest Opossum you know!
MetalFRO
Blog Writer
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United States
Posts: 2358
Awards: 2014 RFGen Top Shmuper



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« Reply #1 on: September 24, 2020, 08:49:13 AM »

That's pretty awesome! When you mentioned it on the Discord, I didn't have a sense for what it was, and thought it was a ROM cart for a prototype game. I didn't realize it was an actual hardware expansion. Based on the DB connector, it seems like maybe this would be something that could turn a stock ColecoVision console into an ADAM-compatible unit, and that port would be where you could plug in a breakout for a keyboard, and possibly other peripherals. That's purely speculation on my part, but it's cool to think about the possibilities.
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ugr
DB Contributor
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Posts: 47


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« Reply #2 on: September 24, 2020, 11:44:14 PM »

Eagerly awaiting a shot of what's under the tape =]
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Crazy_Opossum
Virtual Boy
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United States
Posts: 197


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« Reply #3 on: September 26, 2020, 02:23:11 AM »

Eagerly awaiting a shot of what's under the tape =]

Here ya go (attached), don't worry .. no flash was used and the tape was replaced immediately after photo.


* IMG_20200926_031742_217.jpg (143.25 KB, 1277x714 - viewed 59 times.)
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~The Craziest Opossum you know!
Crazy_Opossum
Virtual Boy
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United States
Posts: 197


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« Reply #4 on: September 26, 2020, 02:40:36 AM »

That's pretty awesome! When you mentioned it on the Discord, I didn't have a sense for what it was, and thought it was a ROM cart for a prototype game. I didn't realize it was an actual hardware expansion. Based on the DB connector, it seems like maybe this would be something that could turn a stock ColecoVision console into an ADAM-compatible unit, and that port would be where you could plug in a breakout for a keyboard, and possibly other peripherals. That's purely speculation on my part, but it's cool to think about the possibilities.


Based on what I read about it, it's a tape simulator meant for transferring the super games to test on a colecovision. I may be misinterpreting what I read so take what I'm saying with a grain of salt
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Crazy_Opossum
Virtual Boy
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United States
Posts: 197


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« Reply #5 on: September 26, 2020, 03:28:18 AM »

After looking at it and the stickers on the inside... It raises a few questions ... The dates on the device 2/14/1985 being the one that threw me off the most, why would they be developing hardware for a product they discontinued for over a month at that time? Maybe it was developed earlier? Maybe the other date of 7/23 (no year) was when it was assembled?? Interesting to think about.
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plgDavid
Tiger Gizmondo

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« Reply #6 on: September 26, 2020, 08:33:38 AM »

This is a MC68701 (A MC6800 family mcu with a UV EPROM part).
https://pdf1.alldatasheet...575/MOTOROLA/MC68701.html
I'm currently looking if someone knows or have the tools to dump this.

In the mean time best to cover up that sticker back and dont expose it to UV.
Might be bitrotted already for all we know.
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Crazy_Opossum
Virtual Boy
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United States
Posts: 197


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« Reply #7 on: September 26, 2020, 01:16:04 PM »

This is a MC68701 (A MC6800 family mcu with a UV EPROM part).
https://pdf1.alldatasheet...575/MOTOROLA/MC68701.html
I'm currently looking if someone knows or have the tools to dump this.

In the mean time best to cover up that sticker back and dont expose it to UV.
Might be bitrotted already for all we know.

Thank you!!! And it's covered back up.
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douglie007
Sega Dreamcast
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United States
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« Reply #8 on: September 28, 2020, 06:30:56 PM »

Following
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Crazy_Opossum
Virtual Boy
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United States
Posts: 197


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« Reply #9 on: October 10, 2020, 06:42:48 PM »

Update: I reached out and I may be getting help from AtariAge. I was told someone needed to be emailed and they would get back to me I will let you know when I get a response.
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