MPC Audio Adapter  (250-1099)          Pinouts         Faxback Doc. # 2716

CD-IN CONNECTOR (J1)                      JOYSTICK/MIDI CONNECTOR

Pin                                       Pin

1   Ground                                1  +5V
2   CD-Left Channel                       2  Joystick A-Button
3   Ground                                3  Joystick A-X postion (input)
4   CD-Right Channel                      4  Ground
                                          5  Ground
CD-ROM DRIVE INTERFACE CONNECTOR (JP3)    6  Joystick A-Y postion (input)
                                          7  Joystick a-Button 2 (input)
Pin                                       8  +5V
                                          9  +5V
1      Response                          10  Joystick B-Button 1 (input)
2      Ground                            11  Joystick B-X position (input)
3      Command                           12  MIDI TXD (output)
4      Ground                            13  Joystick B-Y position (input)
5      Data                              14  Joystick B-Button 2 (input)
6      (key)                             15  MIDI RXD (input)
7      Data Clock
8      Reserved
9      Attention
10-16  Reserved


JP25 Power Connector-This connector is reserved for factory use.

AUDIO EXTENSION PIN ASSIGNMENT

Jumpers are installed on JP24 pins 6 and 7 and JP23 pins 1 and 2 to
connect the speaker amplifier outputs to the speaker jack.

AUDIO EXTENSION CONNECTOR (JP24)               (JP23)

Pin                                            Pin

1      Mic Jack (R)                            1   Speaker Amp Output
2      Ground                                  2   Speaker Jack
3      Mic Jack (L), Preamp Input
4      Ground
5      Speaker Amp Output (R)
6      Speaker Amp Output (L)
7      Speaker Jack (L)
8      Speaker Jack (R)

(smc-11/18/93)