ASRock B75TM-ITX User Manual - Page 34

Spdif_out/dmic_clk

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HDMI_SPDIF Header (2-pin HDMI_SPDIF1) (see p.13/15/17, No. 25) 1 GND SPDIFOUT 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. Backlight & Amp 1: BKLT_EN Volume Control 2: BKLT_PWM Header 3: BKLT_PWR (8-pin BLT_VOL1) 4: BKLT_PWR (see p.13/15/17, No. 17) 1 5: GND 6: GND 7: Brightness_Up 8: Brightness_Down Digital MIC Header 1 (5-pin DMIC1) (see p.13/15/17, No. 24) Home Theater PC Header (7-pin HTPC1) (see p.13/15/17, No. 29) 1 1: +5V 2: No pin 2: SPDIF_OUT/DMIC_CLK 3: GND 4: DMIC_DATA 5: +3.3V PIN Signal Name PIN Signal Name 8 HDMI CEC 7 #Power_Button 6 SMB_DATA 5 3.3V Standby 4 SMB_CLK 3 No pin 2 GND 1 Recording LED 34

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34
HDMI_SPDIF Header
(2-pin HDMI_SPDIF1)
(see p.13/15/17, No. 25)
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.
SPDIFOUT
GND
1
Backlight & Amp
Volume Control
Header
(8-pin BLT_VOL1)
(see p.13/15/17, No. 17)
Digital MIC Header
(5-pin DMIC1)
(see p.13/15/17, No. 24)
Home Theater PC
Header
(7-pin HTPC1)
(see p.13/15/17, No. 29)
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
1
1
1
PIN
Signal Name
PIN
Signal Name
8
HDMI CEC
7
#Power_Button
6
SMB_DATA
5
3.3V Standby
4
SMB_CLK
3
No pin
2
GND
1
Recording LED