LG 50UH5500 Service Manual page 53

+5V_USB_2
USB3_DM0
USB3_DP0
C4400
10uF
10V
USB3_RXM0
/USB_OCD1
USB3_RXP0
USB_CTL1
USB3_TXM0
USB_DM1
USB3_TXP0 USB_DP1
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
Copyright 2016 LG Electronics Inc. All rights reserved.
Only for training and service purposes
USB2
MAX 1.0A
USB_SIDE
USB_SIDE
R4400 2.2
USB_SIDE
R4401 2.2
C4401
10uF
10V
M4400
JP-BLOCK-USB
DM VBUS
DP GND
+3.3V_NORMAL
+5V_NORMAL
R4403
4.7K
USB_SIDE
value change
C4402
0.1uF
10K(2.63V) --> 4.7K(2.97V)
16V
/USB_OCD3_0
USB_CTL3_0
R4402
10K
USB_SIDE
+5V_USB_2
IC4400
USB_SIDE
BD2242G
VIN VOUT
1 6
GND ILIM
2 5
EN OC
3 4
K2H
2015.02.11
USB 2 & 3 15
043.sht
26
LGE Internal Use Only