Denial

I had a Kantronics cart board that I took the EPROM off of and converted to a diag cart board.

You want a dump of the EPROM? Give me your email address on a PM and I"ll send it to you.

RJ

OK, Time to introduce myself... My name is Raymond and my nick comes from 2 places... Channel refers to being a Channels SE (System Engineer in the Channels organization) where Channels is the reseller channel. I used to work with resellers up until Feb 08 when I went to work on a product team. Mani...

It's using a single 2114 SRAM IC for color memory.

That IC is 1k x 4 bits in size. It takes 2 of them to get 1k x 8 bits - and the VIC-20 only has 1.

RJ

Thanks! What does mean "works" ? do you pass the Serial test ? loopback connectors are thus required ? Works in that it tests RAM and Color RAM. No, it doesn't pass the serial test. I have to build the loopback plugs for that to work. I'm guessing that in the pics where the bare wires are ...

I have a breadbin type that is untested. You can have it for shipping if you want.

RJ

Hi everyone, Carlsson from the vintage-computer.com forums pointed me here and I must say it was very helpful as I was trying to get a diagnostic cart built. Now that my account has been activated I can tell you how I built it. I had a Kantronics cart board that had a 2732 chip on it but had the ext...

Hey everyone, Name here is Raymond and Arcadecomponents.com is my site. If you are looking for oddball parts for the Commodore VIC-20, 64, 1541, etc, just drop me a PM. I have a source for dead machines from a defunct service center. I'm interested in the chips from these dead machines so if you nee...