Acer M3900 manual Front USB Header USBVCC1

		Header Name				Function	Definition
						FRONT USB HEADER	1: USBVCC_1
1		F_USB1		2			2: USBVCC_1
		VCC	VCC				3: USB0_XN
	3	USB0-	USB1-		4		4: USB1_XN
	5				6		5: USB0_XP
		USB0+	USB1+
	7				8		6: USB1_XP
		GND	GND
9				10			7:GND
		KEY	OC0
							8: GND
		H5X2-P9E-Y					9: KEY
							10: GND
							1: USBVCC_2
1		F_USB2		2		FRONT USB HEADER	2: USBVCC_2
		VCC	VCC				3: USB2_XN
	3	USB0-	USB1-		4		4: USB4_XN
	5				6		5: USB2_XP
		USB0+	USB1+
	7				8		6: USB4_XP
		GND	GND
9				10			7:GND
		KEY	OC0
							8: GND
		H5X2-P9E-Y					9: KEY
							10: GND
						FRONT AUDIO HEADER	1: PORT-F_L
							2: AUGND
							3: PORT-F_R
							4: FRONT_AUD_DET
							5: PORT-E_R
							6: MIC2_JD
							7: AUGND
							8: KEY
							9: PORT-E_L
							10: LINE2_JD

64 Chapter 5