Minimalist_2300c

#1 Thu, 6 Dec 2012 - 16:08 68kMLA

I made the first pass at building another 2300cTB for an SacrificialHackMac and thought I'd share a piccie.

I've done this in a DuoDock with and without active LCD, but this is by far the most minimal Duo I've done to date. The MoBo's worth putting into a case to test some components for mcdermd's 2300c restoration project and then the Deconstructivist 2300cTB. [}

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#2 Thu, 6 Dec 2012 - 16:22 68kMLA

OH NO! LOOK! IT'S RUNNING WITH SCISSORS!

)

#3 Thu, 6 Dec 2012 - 16:26 68kMLA

What are we looking at?

Is this basically a duo sans shrouding, or is this a mishmash of different components? More deets for ignorant masses (me), please!

#4 Thu, 6 Dec 2012 - 16:47 68kMLA

It's just a B@R3@$$3D 2300c MoBo plugged into a MiniDock with ScissorStandoff to relieve pressure on the connection. It struck me as a neat thing to document. It's a great way to test for minimal function of 2300c components from an eBay lot of three very nearly destroyed units.

One MoBo was certified as DOA in a similar process. It will be systematically torn down for continuity testing of traces alongside a similarly abused DOA 1400 MoBo.

#5 Thu, 6 Dec 2012 - 16:53 68kMLA

That's a neat way to get it done.

Also, the power supply there on the left of the photo.. boy do I wish the G3's had them like that rather than the UFO ones... I wonder if they are compatible at all...

#6 Thu, 6 Dec 2012 - 17:11 68kMLA

If you're talking about Pismo & Co. the connector is electrically compatible, IIRC, but the amperage may not be enough.

#7 Thu, 6 Dec 2012 - 17:18 68kMLA

Sorry to thread-jack, but what is the rating if you have a minute? Pismo is 24V @ 1.875A

Back on track however.. > The DOA board, are you going to be adding wire for new traces as a resurrection? Or are you just further proving its demise?

#8 Thu, 6 Dec 2012 - 17:36 68kMLA

1.5A @ 24V

Methodical TestBorkage! [}

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I'm determining the traces/pinouts from the PBX .030 Bridge Adapter ASIC to the Docking Connector on the 2300c . . .

. . . from PBX to the PCMCIA Card Cage headers on the 1400

. . . from PBX to the Video Card connectionr on the 2300c

I'm working under the assumption that the 1400's Card Cage (T-Rex controller ASIC and the I/R subsystem) and the Video Card connector comprise the high and low order 16 bit portions of the 32 bit address space of the 2300c Docking Connector.

My 2300c's HDD Bay wants a PCMCIA implant, the project is about 11 years running now.

#9 Thu, 6 Dec 2012 - 20:32 68kMLA

I've used Duo chargers on my WS and the UFOs on my duos. They seem to work fine.