Daydream ROM box

NeXT Computer, Inc. -> NeXT Work Logs

Title: Daydream ROM box
Post by: korneluk on July 23, 2007, 12:38:29 PM
Folks,

I would like to buy/borrow a working Daydream ROM box with the corresponding software so that I can trace the circuit, draw a schematic, lay out a PCB, and build more of these prized emulators. This is a fairly small PCB, so cost should not be an issue.

You can either PM me or post your replies here.

-- josé k.
Title: Daydream ROM box
Post by: korneluk on July 24, 2007, 08:50:47 AM
I am getting ready to buy a Mac LC for the ROMs. Can anybody post pictures of the inside of the Daydream box?

TIA,

-- josé k.
Title: Daydream ROM box
Post by: korneluk on July 28, 2007, 01:45:43 PM
Folks,

I have pictures of the insides of the Daydream ROM box. The Apple ROMs are 128Kx8 devices and the equivalent commercial device is 23C1010.

With this info and the pinout of the DSP port I almost have enough info to start reverse engineering a schematic. Please chime in if you can help.

I have the datasheets and pictures if anyone is interested.

-- jose k.
Title: Daydream ROM box
Post by: da9000 on August 01, 2007, 03:52:43 AM
Hi korneluk,

could you give'em to Nitro to add to the forum's files section?

Thanks and good luck with the rev-eng-e! :)
Title: Daydream ROM box
Post by: korneluk on August 01, 2007, 07:06:04 AM
I have, but his inbox is full.  :(

-- jose k.
Title: Daydream ROM box
Post by: Nitro on August 01, 2007, 09:36:46 AM
I placed them in the archives a few days ago.  :wink:

http://www.nextcomputers.org/NeXTfiles/Images/Rare_NeXT_Hardware/Peripherals/Daydream_ROM_Box/
Title: Daydream ROM box
Post by: da9000 on August 02, 2007, 04:50:55 AM
Nice photos!

So that's what a Daydream looks like... Simple enough component wise - just a lot of traces.

I wonder why one of the sockets has yet another socket on it!? Perhaps there are some components underneath?

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