Asus M4A78 PLUS - Manual (Page 38)

7. Optical drive audio in connector (4-pin CD)
This connector allows you to receive stereo audio input from sound sources such as a
CD-ROM, TV tuner, or MPEG card.
CD
Left
Audio Channel
GND GND Right
Audio Channel
M4A78 PLUS
M4A78 PLUS Internal audio connector
8. Digital audio connector (4-1 pin SPDIF_OUT)
This connector is for an additional Sony/Philips Digital Interface (S/PDIF) ports.
SPDIF_OUT
+5
V
SPDIFOU
T
GND
M4A78 PLUS
M4A78 PLUS Digital audio connector
Ensure that the audio device of Sound playback is Realtek High Definition Audio (the
name may be different based on the OS). Go to Start > Control Panel > Sounds and
Audio Devices > Sound Playback to configure the setting.
The S/PDIF module is purchased separately.
9. LPT connector
The LPT (Line Printing Terminal) connector supports devices such as a printer. LPT
standardizes as IEEE 1284, which is the parallel port interface on IBM PC-compatible
computers.
M4A78 PLUS
M4A78 PLUS Parallel Port Connector
PIN 1
LPT
STB# PD
0
PD
1
PD
2
PD
3
PD
4
PD
5
PD
6
PD
7
ACK# BUSY
PE
SLCT
AF
D
ERR# INIT
#
SLIN
#
GND GND GND GND GND GND GND GND
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