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M4a78 plus digital audio connector, M4a78 plus parallel port connector – Asus M4A78 PLUS User Manual

Page 38

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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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ASUS M4A78 PLUS