deskthority

The board seems to be in perfect health, but I have no idea how to proceed with the task of converting such board.
Do I need to connect it using the ps1 connector to power and then try to investigate the signals on the pins with a logic analyzer?
Is there are simpler way to approach such task?

This HEKB01? wiki/Hatsucoh_Electronics_HEKB01

Says it's an 8 mini DIN connector, so I don't think it fits ps/2. Are there any writeups from people who have converted one before?