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gtnicol



Joined: 27 Dec 2005
Posts: 525
Location: Rhode Island, USA

PostPosted: Sat Dec 14, 2013 7:22 pm    Post subject: Reply with quote

I'll see if I can get some better pictures using my kids camera... 5MP vs. 8MP should make a difference...
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gtnicol



Joined: 27 Dec 2005
Posts: 525
Location: Rhode Island, USA

PostPosted: Sat Dec 14, 2013 7:40 pm    Post subject: Reply with quote

The extra chip is SC63594FN RMBY8849.
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pentium



Joined: 23 Jun 2006
Posts: 1148
Location: Kamloops, BC

PostPosted: Sat Dec 14, 2013 7:52 pm    Post subject: Reply with quote

Front and back.




The SC63594FN from what I've found so far (I think) is a 10-bit series buffer/line driver with 20 ohm outputs.
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-NeXT 68040 Cube with NS 3.3 and 64Mb ram
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gtnicol



Joined: 27 Dec 2005
Posts: 525
Location: Rhode Island, USA

PostPosted: Sun Dec 15, 2013 11:05 am    Post subject: Reply with quote

If that's all it is, then we actually have a chance at producing a VGA board for the NeXT machines. From looking at the rest of the board, it's mostly just memory buffers and whatnot... possible to replace with some more modern approaches even.
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pergamon



Joined: 30 Dec 2005
Posts: 214
Location: Indiana

PostPosted: Sun Dec 15, 2013 2:18 pm    Post subject: Reply with quote

I completely forgot, but I've got one of these too: http://www.flickr.com/photos/mgrdcm/sets/72157638709188844/

Looks to be the same board. Same part number (534 REV AF). I don't have the cable though.


Last edited by pergamon on Sun Dec 15, 2013 4:23 pm; edited 1 time in total
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gtnicol



Joined: 27 Dec 2005
Posts: 525
Location: Rhode Island, USA

PostPosted: Sun Dec 15, 2013 4:21 pm    Post subject: Reply with quote

Do you have a modified motherboard? I only have the one...
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pergamon



Joined: 30 Dec 2005
Posts: 214
Location: Indiana

PostPosted: Sun Dec 15, 2013 4:25 pm    Post subject: Reply with quote

gtnicol wrote:
Do you have a modified motherboard? I only have the one...


Sadly, no, I don't believe I do. I'll have to double check - I got that board in a lot with a few other cubes and I may just not have noticed. But by now I don't know which ones were with it, so I'll have to check all of them...
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pentium



Joined: 23 Jun 2006
Posts: 1148
Location: Kamloops, BC

PostPosted: Sun Dec 15, 2013 9:52 pm    Post subject: Reply with quote

By the way, if we decide to make some sort of paddleboard that plugs into the socket instead of a complete board an a neighboring slot, those eight pads in the corner of the board supply +12 and -12v.
The seven pads immediately behind the monitor connector are all ground.
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NeXTnewbe



Joined: 27 Oct 2006
Posts: 276
Location: UK

PostPosted: Mon Dec 16, 2013 6:44 am    Post subject: Reply with quote

Wow, Great find, where did you get this board from?
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