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1-34 Chapter 1: Product introduction
8. Digital audio connector (4-1 pin SPDIF_OUT)
This connector is for an additional Sony/Philips Digital Interface (S/PDIF)
port(s). Connect the HDMI module cable to this connector, then install the
module to a slot opening at the back of the system chassis.
Ensure the audio device of Sound playback is Realtek High Denition Audio
(the name may be different based on the OS). Go to Start > Control Panel >
Sounds and Audio Devices > Sound Playback
to congure the setting.
M3A78-EM
Digital Audio Connector
R
M3A78-EM
+5V
SPDIFOUT
GND
SPDIF_OUT
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.
M3A78-EM
Parallel Port Connector
R
M3A78-EM
LPT
STB#
AFD
PD0ERR#
PD1
INIT#
PD2SLIN#
PD3GND
PD4
1
GND
PD7
PD6
PD5
GND
GND
GND
ACK#
GND
BUSY
PE
SLCT
GND
GND