ASROCK IMB-147 User Manual page 20

Inverter Power Control
Connector
(5-pin BLT_PWR3)
(see p.10, No. 4)
Backlight & Amp
Volume Control
Header
(7-pin BLT_VOL1)
(see p.10, No. 1)
GPIO&AMP Header
(10-pin DGIO_AMP1)
(see p.10, No. 22)
2
1
Internal Speaker Header
(4-pin SPEAKER1)
(see p.10, No. 27)
1
1
PIN Signal Name PIN Signal Name
2 SMB_DATA
4 GPO[1]
6 GPO[0]
8 AMP R(-)
10 AMP R(+)
1
SPK_R-
SPK_R+
SPK_L-
SPK_L+
20
PIN Signal Name
1 +12V
2 GND
3 B/L ENABLE
4 B/L ADJUST
5 +5V
PIN Signal Name
1 VOL_UP
2 VOL_DW
3 BKT_OFF
4 BKT_UP
5 BKT_DW
6 GND
7 GND
1 SMB_CLK
3 GPI[1]
5 GPI[0]
7 AMP L(-)
9 AMP L(+)