LG 49LF6400-DA Service Manual page 43

BT_RESET
WOL/WIFI_POWER_ON
EYE_SDA
EYE_SCL
IR
LED_R
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 ⓒ 2015 LG Electronics. Inc. All right reserved.
Only for training and service purposes
P4000
SMAW200-H18S5
GND
1
R4001 BT_RESET
100 3
NC
5
R4002 WOL
100 7
SDA
C4004
AR4001 9
0.1uF
100
SCL
11
+3.5V_ST GND
R4005 13
10K
5% IR
15
C4007
LED_R
100pF 17
50V
R4015
1.8K
OPT
C4009
0.1uF
16V
L4000 Delete for voltage drop, 131120
C4006
22uF
C4005
0.1uF 10V
+3.5V_WIFI
2
USB_DM R4018
4 10
USB_DP R4019
6 10
Place Near Wafer
GND
8 C4016 C4015
5pF 5pF
GND 50V 50V
10
OPT WIFI_DMDP_5pF WIFI_DMDP_5pF
KEY1
12
KEY2
14
+3.5V_ST
+3.5V_ST
16
C4001
GND
0.1uF
18 C4008
1000pF
OPT
50V
OPT
19
+3.5V_WIFI
WIFI POWER ENABLE CONTROL
+3.5V_ST
IC4001
AP2191WG-7
WIFI_DM
IN
5
WIFI_DP
C4017
+3.5V_ST
0.1uF
R4009
R4008 WIFI_EN EN
R4021 33
AR4002 4
10K 10K
5% 5% 100
C4003
R4022
0.1uF
KEY1 10K
16V
KEY2
OPT
C4002
0.1uF
OPT
MID_LG1311
IR / KEY
PAGE 12
+3.5V_WIFI
OUT
1
GND
2
FLG
3
2014.05.28
12 31
LGE Internal Use Only