LG Electronics 42LT760H-ZA USB_WIFI, +5V_USB FOR USB, USB To SERIAL I/F

USB DOWN STREAM
USB DOWN STREAM
THERMAL
THERMAL
THERMAL
THERMAL
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
D4303 RCLAMP0502BA
OPT
USB2SER_DP
C4309
0.1uF
16V
M_REMOTE
JK4304
3AU04S-345-ZC-H-LG
1234
5
+3.3V_USB2SER
C4321
10uF
10V
WIFI
C4320
0.1uF
16V
WIFI
USB_CTL2
JK4303
3AU04S-345-ZC-H-LG
1234
5
USB_CTL1
C4332
22pF
50V
R4323
10K
R4309
15K
M_REMOTE
M_REMOTE_TX
C4315
20pF
M_REMOTE
C4329
3300pF
50V
R4307
91K 1%
OPT
C4318
22pF
M_REMOTE
/USB_OCD1
R4314 27K 1/10W
+3.3V_USB2SER
R4302 33
M_REMOTE_DEV
R4328
100K
L4302
BLM18PG121SN1D
WIFI
L4305
BLM18PG121SN1D
+3.3V_USB2SER
C4310
0.01uF
25V
M_REMOTE
USB2SER_DM
+5V_USB
R4305
1M 1%
OPT
R4311
10K
OPT
C4319
0.1uF
16V
WIFI
C4334
22uF
10V
R4304
10K
M_REMOTE
USB_DM1
C4333
22uF
10V
C4327
1uF
10V
IC4305
TPS54425PWPR
3VREG5
2VFB
4SS
1VO
6PG
5GND
7EN 8
PGND1
9
PGND2
10
SW1
11
SW2
12
VBST
13
VIN1
14
VIN2
15
[EP]PGND
USB_DP1
R4312
10K
+5V_USB
C4323
10uF
10V
IC4306
TPS2554
3
IN_2
2
IN_1
4
ILIM_SEL
1
GND
5
EN 6ILIM1
7ILIM0
8OUT_1
9OUT_2
10 FAULT
11
[EP]
R4303 33
M_REMOTE_DEV
+3.3V_NORMAL
WIFI_DM
WIFI_DP
R4341 27K 1/10W
OPT
C4316
20pF
M_REMOTE
+12V
+3.3V_NORMAL
R4308 100K
1%
OPT
R4300 27K 1/10W
M_REMOTE_RX
+3.3V_USB2SER
POWER_ON/OFF2_4
+3.3V_NORMAL
C4317 22pF
M_REMOTE
C4328
0.1uF
/USB2SER_RESET
P4301
12507WR-04L
WIFI
1
VDD
2
DM
3
DP
4
GND
5
.
IC4303
TPS2554
3
IN_2
2
IN_1
4
ILIM_SEL
1
GND
5
EN 6ILIM1
7ILIM0
8OUT_1
9OUT_2
10 FAULT
11
[EP]
L4301
BLM18PG121SN1D
M_REMOTE
R4306
10K
M_REMOTE
R4301 1.5K
M_REMOTE
C4314
1uF
M_REMOTE
C4311
0.1uF
16V
M_REMOTE
+5V_USB
C4313
0.1uF
16V
M_REMOTE
R4330
120K
1%
C4324
10uF
16V
+5V_USB
C4340
10uF
10V
C4312
0.1uF
16V
M_REMOTE
USB_DM2
/USB_OCD2
R4329 10K
R4327
10K
OPT
C4326
0.1uF
50V
X4300
12MHz
M_REMOTE
R4313 27K 1/10W
OPT
L4308
2uH
D4304 RCLAMP0502BA
OPT
USB_DP2
R4310
10K
M_REMOTE
R4331
22K
1%
+3.3V_USB2SER
D4300
RCLAMP0502BA
OPT
C4339
10uF
10V
WIFI
+5V_USB
IC4304
TUSB3410RHBR
M_REMOTE 1
VREGEN
3
VCC_1
7
DM
9
RESET
10
SDA
11
SCL
12
WAKEUP
13
CTS
14
DSR
15
DCD
16
RI/CP
17 SIN/IR_SIN
18 GND_2
19 SOUT/IR_SOUT
20 RTS
21 DTR
22 CLKOUT
23 TEST0
24 TEST1
25 VCC_2 26 X2 27 X1/CLKI 28 GND_3 29 P3.4 30 P3.3 31 P3.1 32 P3.0
5
PUR
8
GND_1
6
DP
4
VDD18
2
SUSPEND 33
[EP]
43
USB3_HUB_WiFi
2011.09.29
xxLT760H-UA
USB_WIFI
For EMI
DVR Ready
MAX 0.4A
Vout=(0.763+0.0017*Vout.set)*(1+R1/R2)=4.98V
4A
USB1
To SOC
MAX 1.8A
R1
USB2
+5V_USB FOR USB
R2
To SOC
MAX 1.8A
DVR Ready
USB To SERIAL I/F
To SOC
Copyright © 2012 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only