Computer Hardware User Manual

Chapter 2: Installation
2-23
LSI 1068E
NIC4 LED
JBMC1
Internal Buzzer
The Internal Buzzer (SPKR1) can be
used to provide audible indications for
various beep codes. See the table on
the right for pin defi nitions. Refer to
the layout below for the locations of
the Internal Buzzer.
A. Internal Buzzer
B. Speaker
Internal Buzzer
Pin Defi nition
Pin# Defi nitions
Pin 1 Pos. (+) Beep In
Pin 2 Neg. (-) Alarm
Speaker
Speaker
On the JD1 header, Pins 3~4 are used
for internal speaker. Close Pins 3~4
with a cap to use the onboard speaker.
If you wish to use an external speaker,
close Pins 1~4 with a cable. See the
table on the right for pin defi nitions.
Speaker Connector
Pin Defi nitions
Pin Setting Defi nition
Pins 3~4 Internal Speaker
Pins1~4 External Speaker
A
B
C