SX-64 Keyboard Connector

25 PIN D-SUB MALE on both sides. The cable is straight through 1:1 type.

1 GND
2 n/c
3 -RESTORE
4 +5Vdc
5 ROW 3
6 ROW 6
7 ROW 5
8 ROW 4
9 ROW 7
10 ROW 2
11 ROW 1
12 ROW 0
13 COL 0
14 COL 6
15 COL 5
16 COL 4
17 COL 3
18 COL 2
19 COL 1
20 COL 7
21 SHIFT LOCK
22 ?
23 GND
24 GND
25 n/c

Notice that first 20 pins equals standard C-64 keyboard connector, see [document in Funet].

Source: [SX-64 schematics]

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