Read LG 42LV5400 (CHASSIS:LA12E) Service Manual online
LGE35230
6. USB block
USB1
USB_DP1
USB_DM1
+5V_USB
USB_DP1
USB_DM1
USB PWR
Switch
(IC1204)
USB_PWRFLT_1
USB_PWRON_1
5V
USB2
USB_DP2
USB_DM2
+5V_USB
USB_DP2
USB_DM2
USB PWR
Switch
(IC1203)
+3.3V_Noraml
USB_PWRFLT_2
USB_PWRON_2
5V
+3.3V_Noraml
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