U
S
B
D
O
W
N
S
T
R
E
A
M
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.
+5V_USB_1
+3.3V_NORMAL
R4500
10K
+5V_USB_1
USB_DM1
USB_DP1
C4500
0.1uF
16V
+5V_NORMAL
USB_CTL1
/USB_OCD1
JK4500
3AU04S-305-ZC-(LG)
1
2
3
4
5
D4501
5V
USB_ESD_SD05
C4502
22uF
10V
OPT
R4502
14K
1%
IC4500
BD2242G
3
EN
2
GND
4
OC
1
VIN
6
VOUT
5
ILIM
R4501
4.7K
C4501
10uF
10V
D4500
RCLAMP0582B
USB_ESD_0582B
D4500-*1
RCLAMP0502BA
USB_ESD_0502BA
1
MID_LG1311
USB 1(DVR)
2013.04.03
PAGE 14
USB1 (2.0)
MAX 1.5A
OCP USB1
value change
10K(2.63V) --> 4.7K(2.97V)
EAX6536390* : Use RClamp0582B, SD05
EAX6538400* : Use RClamp0502BA
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Summary of Contents for 55EC9300
Page 48: ...55EC9300 55EC9310 ...
