50PX950-UA, 50PX950-UF (CHASSIS:PU02B) - LG TV Service Manual (repair manual). Page 30

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.

Wireless

SCL3_3.3V

SDA3_3.3V

IR_PASS

WIRELESS_DETECT

WIRELESS_DL_RX

JK1300

KJA-PH-3-0168

14

GND_3

13

I2C_SDA

5

VCC[24V/20V/17V]_5

12

I2C_SCL

11

GND_2

2

VCC[24V/20V/17V]_2

19

GND_5

18

IR

10

RESET

4

VCC[24V/20V/17V]_4

1

VCC[24V/20V/17V]_1

17

GND_4

9

GND_1

8

INTERRUPT

3

VCC[24V/20V/17V]_3

16

UART_TX

7

DETECT

6

VCC[24V/20V/17V]_6

15

UART_RX

20

GND_6

21

SHIELD

+3.3V

WIRELESS_SDA

WIRELESS_SCL

WIRELESS_DL_TX

R1314

10K

WIRELESS_SDA

R1316

0

R1315 0

WIRELESS_SCL

R1313

1K

R1300
10K

C1300
0.1uF
50V

P_17V

WIRELESS_PWR_EN

C1302

0.01uF

50V

L1300

BLM18PG121SN1D

R1303
22K

C1301

2.2uF

Q1300

E

B

C

R1306
0

1/4W

3216

R1304
2.2K

+3.3V

R1317

4.7K

R1318

4.7K

Q1301

AO3407A

G

D

S

R1301

10K

OPT

FDV301N

Q1303

OPT

G

D

S

FDV301N

Q1302

OPT

G

D

S

+3.3V

SDA3_3.3V

WIRELESS_SCL

SCL3_3.3V

WIRELESS_SDA

13      14

Wireless

EAX61557901

From wireless_I2C to micom I2C

Wireless power

* Address : 0X20

WIRELESS READY MODEL

WIRELESS I2C LEVEL SHIFTER