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18) SPDIF_O (SPDIF)
VCC
SPDIF Out
GND
19) SPDIF_IN
VCC 1
SPDIF IN
GND
20) IR _CIR
NC
GND
VCC
CIRRX
1
NC
21) F_USB1/F_USB2 (Front USB Connector)
USB Dy+
USB Dy-
Power
1
Power
USB Dx-
USB Dx+
1
IRTX
GND
IRRX
NC
VCC
GND
USB Over Current
GND
- 21 -
Ø The SPDIF output is capable of providing
digital audio to external speakers or com
pressed AC3 data to an external Dolby
Digital Decoder. Use this feature only when
your stereo system has digital input
function.
Ø Use this feature only when your device has
digital output function.
Ø Make sure the pin 1 on the IR device is
aling with pin one the connector. To
enable the IR/CIR function on the board,
you are required to purchase an option IR/
CIR module. For detail information please
contact your autherized Giga-Byte
distributor.
To use IR function only, please connect IR
module to Pin1 to Pin5.
Ø Be careful with the polarity of the front USB
connector. Check the pin assignment while you
connect the front USB cable.
Please contact your nearest dealer for optional
front USB cable.
Hardw are Installation Process
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