External Speaker; Ps/2 6-Pin Mini Din Mouse Connector - Boser HS-3200/4M Manual

3.6External Speaker

The HS-3200/4M has its own buzzer, and CN5 allows user to connect to the
external speaker.
CN5 : Speaker Connector
??
PIN NO.
1
2
3
4

3.7PS/2 6-Pin Mini Din Mouse Connector

The HS-3200/4M has a PS/2 mouse on board which uses IRQ12. If you do not
use the PS/2 mouse and wish to assign IRQ12 for other purposes, you may
change JP8 to disconnect PS/2 interrupt from IRQ12.
JP8 : IRQ12 Select
??
JP8
OPEN
*CLOSE
*) : default setting
CN20 : PS/2 Mouse Connector
??
PIN NO.
1
2
3
4
5
6
26
DESCRIPTION
SPEAKER SIGNAL
NC
GROUND
+5V
Display Type
No interrupt for PS/2
IRQ12
DESCRIPTION
MS DATA
NC
GROUND
+5V
KBT1
NC