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Korg KPR-77 MIDI Interface - Installation Instructions
1.
Remove any batteries if they are installed, and remove the 7 screws on the underneath of the
drum machine.
2.
Gently lift off the top half of the case and disconnect the 2 ribbon cables and 3 cable connectors
that join the top and bottom halves of the case. (They will still be joined by the wires going to the
power switch)
3.
Unscrew and remove the board labelled KLM-448A. It is located in the left hand side of the
bottom case. Disconnect the ribbon cable in the bottom left of the board.
4.
Separate and fan out the wires from the supplied 14-way ribbon cable. Strip the wires and tin
the ends with solder. Although not strictly necessary, the installation will be a lot neater if you
cut the wires increasingly shorter towards the stripe end. This is best done by cutting each
wire after soldering the previous, starting with the non-stripe end (pin 14 of CN07).
Red stripe denotes pin 1
Note:
The images shown here have a multi-
coloured ribbon cable, whereas the
cable supplied with the kit is grey, with
a red strip denoting pin 1.
This does not matter, as the wires
connect to CN07 on the KLM-448A
board in sequence.
1 ----------- CN07 ----------- 14
Close-up of connections to KLM-448A board
Overview of connections to KLM-448A board
Note rotation of board! CN07 is on the top edge.
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