RE: PET 2001 Fix....WAS: Will pay good money for NON working PET 2001 motherboard.

So the question is, why doesn't that CG ROM work?

Don't know how to post attachments here, so I'll send you pics off-list;
'good' camera's broken and this one doesn't take very good close-ups,
but you'll get the idea. If/when I can take better pics I'll send them as
well if you want.

mike
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From: 	Ethan Dicks[SMTP:ethan.dicks@gmail.com]
Sent: 	Monday, November 23, 2009 4:07 PM
To: 	cbm-hackers@musoftware.de
Subject: 	Re: PET 2001 Fix....WAS: Will pay good money for NON working PET 2001 motherboard.

On Mon, Nov 23, 2009 at 3:55 PM, M H Stein <dm561@torfree.net> wrote:
> I take it the 2316 is soldered into this adapter (or you wouldn't need a 6540
> to JEDEC adapter to read it);

Yes.

> if it is indeed a Japanese character set then I
> wonder whether there's more to it than just the CG ROM (or if it is just a bad
> 2316 or adapter).

There's just a 2316B, a small PCB, some stiff steel wires that plug
into the 6540 socket, and a solder jumper or two on the bottom of the
PCB (one closed, one open).  No active components.  The rest of the
ROMs in the machine have the expected part numbers as documented on
zimmers.net, etc.  The rest of the machine looks entirely ordinary and
works like a "European" PET when a bog-standard Character Gen ROM is
installed.

> Anyway, I'm interested since I happen to have a spare Japanese keyboard
> and my girlfriend is studying Japanese at the moment (although I doubt she'd
> want to start using a PET for her Japanese writing ;-)

Can you post a photograph of that keyboard?  I'm curious what Japanese
characters overlay which ASCII values.

> If you do manage to read the ROM and it looks like it works, I'd love to get
> a binary dump.

Of course.  If I can dump the ROM, I'll post an image on zimmers.net.

-ethan

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