Kurzweil PC88 - Page 96

Chapter 4
Panel Inputs/Outputs
Troubleshooting
Signal KBDuC Comments
Pin No
P51/SLD1 10 Front Panel Sense Output, active low
P50/SLDO 11 Front Panel Drive Output, active low
P13/A11 46 Control Panel Column "D"
P12/A10 47 Control Panel Column "C”
P11/A09 48 Control Panel Column "B"
P10/A08 49 Control Panel Column "A"
P67 12 Control Panel Column "7"
P66 13 Control Pane! Column "6"
P65 14 Control Panel Column "5"
P64 15 Control Panel Column "4"
P63 16 Control Panel Column "3"
P62/INT3 17 Control Panel Column "2"
P61/INT2 18 Control Panel Column "1"
P60/INT1 19 Control Panel Column "0"
P37 74 Encoder "Phase A"
P36 75 Encoder "Phase B"
Keyboard Inputs
Signal KBDuC Comments
Pin No.
P55/SLD5 6 Keyboard Break "5"
P53/SLD3 8 Keyboard Break "4"
P27/D7 33 Keyboard Break "3"
P25/D5 35 Keyboard Break "2"
P23/D3 37 Keyboard Break "1"
P21/ DIP36 39 Keyboard Break "0"
P55/SLD5 7 Keyboard Make "5"
P53/SLD3 9 Keyboard Make "4"
P26/D6 34 Keyboard Make "3"
P24/D4 36 Keyboard Make "2"
P22/D2 38 Keyboard Make "1"
P20/D0 40 Keyboard Make "0"
P[07:00] / 50, 51, 52, 53, Treble Row "7" to "0"
A[7:0] 54, 55,56, 57
P67 12 Bass Row "7"
P66 13 Bass Row "6"
P65 14 Bass Row "5"
P64 15 Bass Row "4"
P63 16 Bass Row "3"
P62/INT3 17 Bass Row "2”
P61/INT2 18 Bass Row “1"
P60/INTO 19 Bass Row "0"
PC88 Service Manual
4-16