[Coco] I am a dirty coward. Give me courage.

[Juan Castro]

Success! And the ROM is a plain DIP:

https://picasaweb.google.com/lh/photo/9fOjJvfmAbrco_AFd0VtlG9XcHdiH80reA6_ygAbi6M
https://picasaweb.google.com/lh/photo/SORKsWZUjyRVD-lZx_H6dm9XcHdiH80reA6_ygAbi6M
https://picasaweb.google.com/lh/photo/0ix17nyqq7cEckUKcgUnWm9XcHdiH80reA6_ygAbi6M

Is that pin-compatible with a 2764?

On Tue, Nov 13, 2012 at 2:53 PM, Bill Pierce <ooogalapasooo at aol.com> wrote:
>
> Tape. That's how I used the Orch90 cart before I got a disk drive so I could have stereo dacs. Any tape residue can be cleaned up with acetol or alchohol.
>
> Oh, and to open the carts, on the slot side, there's a "pin" on each side. Just press the top or bottom (can't remember) inward very firmly and it will release. Sometimes one will pop off, but you still have the screw to hold it on reassembly.
>
> Bill P
>
> Music from the Tandy/Radio Shack Color Computer 2 & 3
> https://sites.google.com/site/dabarnstudio/
> Bill Pierce
> ooogalapasooo at aol.com
>
>
>
>
> -----Original Message-----
> From: Brendan Donahe <brendan at polylith.com>
> To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
> Sent: Tue, Nov 13, 2012 10:19 am
> Subject: Re: [Coco] I am a dirty coward. Give me courage.
>
>
> A long time ago, I just used scotch (cellophane) tape to cover the pin of
> various cartridges I wanted to dump.  After removing it, I didn't have any
> significant trouble cleaning the contacts (and my cartridges and cartridge
> slots still work), but your mileage may vary.
>
> Brendan
>
> On Tue, Nov 13, 2012 at 7:41 AM, Juan Castro <jccyc1965 at gmail.com> wrote:
>
>> If they're blobs, there's not much else I can do, is there? Oh... dump
>> them, yeah.
>>
>> http://aaronwolfe.com/robert.gault/Coco/Unpublished/CART2RAM.html
>>
>> Yuck. Suggestions on what could I cover that pin with that won't risk
>> smearing the cart slot with unwanted substances?
>>
>> On Tue, Nov 13, 2012 at 11:37 AM, Boisy G. Pitre <boisy at tee-boy.com>
>> wrote:
>> > Oh yes, absolutely if that is your intention.  I thought you were
>> wanting to experiment with the PCB itself.
>> >
>> > On Nov 13, 2012, at 7:33 AM, Juan Castro <jccyc1965 at gmail.com> wrote:
>> >
>> >> ...but I'll still be able to put a replacement PCB in, right?
>> >>
>> >> (Come on, call the Inquisition now. I... expect it. HAH!)
>> >>
>> >> On Tue, Nov 13, 2012 at 11:26 AM, Boisy G. Pitre <boisy at tee-boy.com>
>> wrote:
>> >>> Hey Juan,
>> >>>
>> >>> What you are doing is considered sacrilege! :)
>> >>>
>> >>> You'll find that once you tear into the cartridge (yes, it takes some
>> force to separate the two halves once the screw is removed), it will likely
>> not have a 24 or 28 pin ROM socket, but a tiny epoxy blob which will make
>> your experimenting a bit more interesting.
>> >>>
>> >>> The cartridges that tend to have the 28 pin ROMs are the newer CoCo 3
>> carts like Shanghai and Thexder.  Before you take a cart apart, pull back
>> the card edge cover at the bottom of the cart and hold it to a strong
>> light, then peek on the inside top of the motherboard.  If you see a tiny
>> black blob, you know it's not the cartridge board with the  PROM, so it's
>> probably best to leave it be.
>> >>>
>> >>> On Nov 13, 2012, at 7:20 AM, Juan Castro <jccyc1965 at gmail.com> wrote:
>> >>>
>> >>>> I bought a bunch of cartridges like this one:
>> http://i.imgur.com/dkWPr.jpg
>> >>>>
>> >>>> I want to open them up to maybe play with ROM replacing, but after
>> >>>> taking off the screw the two halves seem to feel no inclination to
>> >>>> come apart gently. I don't want to break them. What's the best way to
>> >>>> do this?
>> >>>>
>> >>>> By the way, all of them work and I want to save the ROMs for
>> >>>> posterity. There's a Space Invaders-like game, an AstroBlaster-like
>> >>>> game, this one (Bust Out), a simple math game, and a... spreadsheet!
>> >>>>
>> >>>> Juan
>> >>>>
>> >>>> --
>> >>>> Coco mailing list
>> >>>> Coco at maltedmedia.com
>> >>>> http://five.pairlist.net/mailman/listinfo/coco
>> >>>
>> >>>
>> >>> --
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>> >>
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