COMMODORE 64 - BASIC ROM & KERNAL ROM REPLACEMENT ADAPTER REV.3

DESIGNED FOR 901226-01 BASIC ROM and 901227-03 KERNAL ROM REPLACEMENT.

Hello,

This is a tested and working circuit board.

This adapter is suitable for Commodore 64 24pin Basic and Kernal ROMs

REV.3 PCB is a special narrow design that allows you to use three adapters side by side on the commodore 64 motherboard.

You can find and download many different ROM files for your C64, from internet. 

This adapter lets you to use max. 8 (8 x 8KB) different ROMs in one 27C512 eprom.

The download link at the bottom of this page contains 901226-01 BASIC ROM and 901227-03 KERNAL ROM images for eproms.

This ROM adapter table is also compatible with JiffyDOS ROM, you can buy and use JiffyDOS 64 KERNAL ROM Image

http://store.go4retro.com/jiffydos-64-kernal-rom-overlay-image/

In terms of device and software security; please turn your Commodore64 off before switching ROMs.

Ps. In order to use this ROM adapter, your Commodore 64's ROMs have to be desoldered and socketed.

If you need 16x4KB Commodore 64 Character Generator ROM replacement adapter for replacing 901225-01, it is here

Gerber files can be changed at any time. Before paying for the PCBs, be sure to update your orders!

Have fun

Thank you.

COMPONENTS:

27C512 (or W27C512) (FOR 8X ROM)

3 PCS 10K 1/4 WATT RESISTANCE

2 PCS. 12 PIN 2.54mm ROUND MALE HEADER

3 PCS 2PIN 2.54mm MALE HEADER

3 PCS 2.54mm JUMPER CAP

28 PIN WIDE DIP IC SOCKET

24 PIN WIDE DIP IC SOCKET (FOR C64 BOARD )

And you will need an eprom programmer to program 27c512