ASROCK Z77TM-ITX User Manual page 37

Motherboard
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HDMI_SPDIF Header
(2-pin HDMI_SPDIF1)
(see p.13/15/17/19, No. 25)
Backlight & Amp
Volume Control
Header
(8-pin BLT_VOL1)
(see p.13/15/17/19, No. 17)
Digital MIC Header
(5-pin DMIC1)
(see p.13/15/17/19, No. 24)
Home Theater PC
Header
(7-pin HTPC1)
(see p.13/15/17/19, No. 29)
1
GND
SPDIFOUT
1
1
PIN Signal Name PIN Signal Name
8
6
4
1
2
37
This header provides SPDIF
audio output to HDMI VGA
cards, allowing the system
to connect HDMI Digital
TV/projector/LCD devices.
Please connect the HDMI_
SPDIF connector of a HDMI
VGA card to this header.
1: BKLT_EN
2: BKLT_PWM
3: BKLT_PWR
4: BKLT_PWR
5: GND
6: GND
7: Brightness_Up
8: Brightness_Down
1: +5V
2: No pin
2: SPDIF_OUT/DMIC_CLK
3: GND
4: DMIC_DATA
5: +3.3V
HDMI CEC
7 #Power_Button
SMB_DATA
5
3.3V Standby
SMB_CLK
3
GND
1 Recording LED
No pin

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