Kurzweil PC88 - Page 97

Chapter 4 Troubleshooting
Debug Port
Signal KBDuC Conunents
Pin No
P33 /PWM 78 Transmit Data
P32/EV3 79 Interrupt Request
P31/EV2 2 Receive Data
Interprocessor Communications
Signal KBDuC Comments
Pin No
P35/TxD 76 Internal MIDI Transmit Data
P34/RxD 77 Internal MIDI Receive Data
P30/EV1 3 Alert Line from 68301
P56/SLD6 5 Alert Line to 68301
PC88 Service Manual
4-17