CBM 8032 display CRT replacement

[Joe Giliberti]

Okay, thanks for clearing that up.
First off, I suppose I need to check voltages.

On Tue, Aug 18, 2009 at 4:41 PM, Ethan Dicks <ethan.dicks at gmail.com> wrote:

> On Tue, Aug 18, 2009 at 4:33 PM, Joe Giliberti<starbase89 at gmail.com>
> wrote:
> > I have a good DMM available, as well as a scope.
>
> Good start.
>
> > I just noticed that there are two chips missing, which appear to be ROMs.
> > There are sockets, but no chips. Their location would be toward the back
> > part of the board, to the right. They are the last two in a column (in
> > relation to the back) of similar-sized chips, most of which are direct
> > soldered to the board. I can take a photo if one is needed
>
> A stock 8032 has "expansion ROM" sockets - it was common for PET
> owners to enhance their PETs with after-market firmware.  I myself had
> the PAICS BASIC Toolkit, the Rabbit tape speeder, a very nice enhanced
> Machine Language Monitor (MICRO-MON?) and I'm blanking on what was in
> my third ROM socket (BASIC 2.0 had 3 available sockets).
>
> It's likely your PET just has no add-on firmware, but I suppose it's
> possible that it _has_ add-on firmware but is missing two other ROMs,
> just not as likely.
>
> -ethan
>