The keybed assembly is now out of the Korg M1 workstation.

To access the M1's Switch circuit board, you must roll back a foil sheet.

The grounded foil isolates between the Switch board and the computer boards already removed.

About 15 gold screws hold down the foil.

Four of the screws also hold down two more brackets.

Here you see the left bracket.

Here you see the right bracket.

The bracket screws are self tapping.  The others are machine screws.

Here, the foil is rolled back and the Switch circuit board (KLM-1262) is in plain view.

Before removing the Switch board, unplug four connectors on the CPU board.

They lie within the green outline in this photo.

This photo shows the four CPU board connectors:

• a flat ribbon cable - CN2A



• a 3-pin plug with one brown and one green wire - CN3A



• a 13-pin plug with 1 blue and 12 brown wires - CN4A
  
  
• an 11-pin plug with 1 gray and 10 brown wires - CN5A

On the DAC board, unplug one connector, shown here.  It's a 7-pin plug with 1 white and 6 red wires - CN13A.

Unplug one connector to the Jack circuit board (KLM-1263).  The Jack board is still attached to the M1's rear panel.

This plug has 1 blue and 7 orange wires.

Finally, cut a cable tie that straps the unplugged cables to the others.  Replace the tie later to keep the cables neat.