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ASUS P4B-M motherboard user guide
2-27
8. Internal audio connectors (4-pin CD1, AUX, MODEM)
(optional)
These connectors allow you to receive stereo audio input from sound
sources such as a CD-ROM, TV tuner, or MPEG card. The MODEM
connector allows the onboard audio to interface with a voice modem
card with a similar connector. It also allows the sharing of mono_in
(such as a phone) and a mono_out (such as a speaker) between the
audio and a voice modem card.
Figure 2-36 Internal Audio Connectors
®
P4B-M
P4B-M Internal Audio Connectors
CD (Black)AUX (White)
MODEM
Right Audio Channel
Left Audio Channel
Ground
Ground
Modem-Out
Ground
Modem-In
Ground
9. Headphone true-level line out connector (3-pin HPHONE)
(optional)
This connector connects to an optional front panel audio module using
a 3-pin audio cable. If your chassis has this audio module, you can
connect a headphone/speaker on the front panel.
®
P4B-M
P4B-M True-Level Line Out Connector
HPHONE
1
Left Headphone
GND
Right Headphone
Figure 2-37 Headphone True-level Line Out Connector