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Re: HD20
- Subject: Re: HD20
- From: Wayne Stewart <waynes@intergate.ca>
- Date: Thu, 14 Mar 2002 21:41:14 -0800
- Newsgroups: comp.sys.apple2
- Organization: Posted via Supernews, http://www.supernews.com
- References: <a6haln$n7c$1@opus.pdx.net> <3c8c2e60$1@news.uow.edu.au> <a6hjb4$nsl$1@opus.pdx.net> <Gaij8.260$UI4.159383@news.uswest.net>
- Xref: archiver1.google.com comp.sys.apple2:18221
Bart wrote:
>
> >No one has cracked the lid and
> >looked at one?
> I am sitting in my shop with an open HD20 in fromt of me. Inside we find a
> Power Supply a fan, a disk, and a board. The disk is a Rodime Model 552.
> Connector seems to be a 26 pin affair similar to a Apple II SCSI card connector
> A DB25 (DE? ;) SCSI ribbon will fit here.which leads to a matching connector
> on the baord. again a 26 pin connector. the rest of the board is...:
> Silk Screened Apple Computer c 1985 with no Rev number
> socketed chips: 1st seems to be a Apple one marked 620 VM
> B414...2365-1239....342-0343-B... c 85 Apple Korea it is a 28 pin one and it
A 2764 EPROM
> is twined by another 28 pin that is marked: 625v
> c244....VP4060-0001....344-0041-B...c Apple 1982 1983,
The 344-0041-B is identical in part # and form factor as the IWM used in
the Mac Plus and on the daisy-chain card found inside the 3.5" UniDisk.