This cartridge includes 4 diagnostic test roms (as listed below) for Commodore 64.
C-64 Diagnostic Rev. 586220
C-64 Diagnostic Rev. 4.1.1
C-64 Import Test Diag
C-64 Diagnostic (Box)
[How to use]
Simply slide the switches to select the diagnostic test rom.
|Diagnostic||Diag. Rev. 586220||Diag. Rev. 4.1.1||Import Test Diag.||Diag. (Box)|
In order to fully test your machine(e.g. I/O port), harness (loop back connection) is needed.
Only slide the switches when the machine is off.