Commodore 128 Alive!

Commodore PET => Old messages => PET hardware => Topic started by: Blacklord on August 03, 2009, 09:36 AM

Title: 6540 rom replacement
Post by: Blacklord on August 03, 2009, 09:36 AM
Original post by timk

I'm looking for details how to adapt an EPROM to replace the 6540 rom in a PET 2001. I have found some information but not a detailed description of how it can be done.
Thanks
Tim
Title: Re: 6540 rom replacement
Post by: Blacklord on August 03, 2009, 09:37 AM
Original post by donni

Have a look here:  http://freenet-homepage.de/x1541/hardware/adaptors.html (http://freenet-homepage.de/x1541/hardware/adaptors.html)
Title: Re: 6540 rom replacement
Post by: Blacklord on August 03, 2009, 09:37 AM
Original post by timk

For the BASIC rom I needed the RAM/ROM expansion to replace it. Apparently there was problems with my emails getting through otherwise purchase using PayPal went well and kit was delivered to Canada within 2 weeks. I haven't had time to assemble and test it yet.
I still would like information for replacing the ROM only as I will likely try to do it anyway.
Thanks
Title: Re: 6540 rom replacement
Post by: Blacklord on August 03, 2009, 09:38 AM
Original post by Splurge

I am probably going to end up getting one of these if i cant get the RAM issue sorted out.  timk, have you had a chance to work on this?
Title: Re: 6540 rom replacement
Post by: Blacklord on August 03, 2009, 09:38 AM
Original post by timk

I didn't have time to work on this project and it got put into storage for now.
Title: Re: 6540 rom replacement
Post by: Blacklord on August 03, 2009, 09:39 AM
Original post by donni

Quote from: timk

    I didn't have time to work on this project and it got put into storage for now.

I know how that feels :|
I have a defective 8250lp laying around here for more than half a year now.
Title: Re: 6540 rom replacement
Post by: Blacklord on August 03, 2009, 09:39 AM
Original post by Splurge

Quote from: timk

    I didn't have time to work on this project and it got put into storage for now.

I built my kit late in december and it works great!
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