Diamond Systems MM-HP J5 & J6 Stereo 3.5mm jacks, J12 Game port and MIDI I/O, J5 Output Jack

J8 and J13: Mono and PC speaker input/output, standard 1x6-pin right-angle header

PC Speaker Out

Mono Out

Mono In

Agnd

PC Speaker In

Dgnd

1

2

3

4

5

6

This header provides standard PC speaker in (2-pin) and out (4-pin) connections on a single header. The user may connect the PC speaker either to this point or to the main CPU connection point. The Mono In/Out signals are available only on versions of the board with the ES1869 chip.

If PC Speaker Out is used on this header, then the main CPU PC Speaker Out signal must be connected to PC Speaker In on this header. Otherwise there will be no signal on PC Speaker Out on this header.

Both J8 and J13 are identical and are wired in parallel. Only one of these locations has a pin header installed, depending on which version of the board you have.

J5 & J6: Stereo 3.5mm jacks

J5: Output Jack

Speaker Out L + or Line Out L + Speaker Out R + or Line Out R + Agnd (Speaker / Line Out -)

Tip

Ring

Shield

J6: Input Jack

Line In L + or Microphone in Line In R + or NC Agnd (Line / Mic In -)

Tip

Ring

Shield

These jacks are provided for user convenience. Many PC speakers and microphones use standard 3.5mm diameter stereo jacks for connection. The signals appearing on these jacks are controlled by configuration header J11 located immediately to the left of these jacks.

J12: Game port and MIDI I/O

+5V	1	2	+5V
SW A	3	4	SW C
TA	5	6	TC
Ground	7	8	MIDI Out
Ground	9	10	TD
TB	11	12	SW D
SW B	13	14	MIDI In
+5V	15	16	N/C

CRYSTAL-MM-HPUser Manual v2.0 September 2007 Diamond Systems Corporation P. 6