COMMODORE 64 DEAD-TEST 781220 & DIAGNOSTIC 586220 CARTRIDGE

This is a tested and working circuit board.

DEAD TEST 781220 and DIAGNOSTIC 586220 Cartridges are two different cartridges for testing commodore 64 and finding hardware faults.

The 586220 part of this cartridge is actually a standart 8KB Commodore 64 cartridge, locates between $8000 -$9FFF

The 781220 part of this cartridge is actually an 8KB Ultimax Commodore 64 cartridge, locates between $E000 - $FFFF

Some the tests in Diagnostic 586220 needs harness, you can find more information from these links. Thanks to Jani and Sven.

http://blog.worldofjani.com/?p=164

http://blog.worldofjani.com/?p=879

https://github.com/svenpetersen1965/C64-Diagnostic-Rev.-586220-Harness

You can download EPROM binary files from the bottom of this page.

The 586220 Diagnostic Cartridge is not enough to test everything, I made some simple PCBs for you, to test the input / output ports.

Dongle for Control Ports

Dongle for Cassette Port

Dongle for Keyboard Connector

Dongle for User Port



Commodore 128/128D Diagnostic Cartridge (For Diagnostic Rev.785260)

Dongle for Commodore 128/128D Keyboard (For Diagnostic Rev.785260)

Components:

2pcs. 27c64 or 27c128 or 27c256 or 27c512 (DIP28) (need to be programmed)

2pcs. DIP28 wide IC socket

2pcs. 100nf capacitor

2PCS. RIGHT ANGLE TACTILE BUTTON (For optional RESET)

In order to protect your electronical devices, always turn off your computer before connecting or disconnecting the cables or any other device.

Gerber files and component list are subject to change without notice. Before paying for the PCBs, be sure to update your orders!

As you can see I have uploaded many projects and I am still working on new projects. If you have any questions, please look for answers online. Unless I specify explicitly, all my projects are tested and confirmed to work under normal circumstances before being shared. I'm sorry I didn't have enough time to answer all the questions.

Use this PCB at your own risk !

Have fun

Thank you.

C64iSTANBUL