DOWNLOAD LG 42PG60UD-AA (CHASSIS:PA81A) Service Manual ↓ Size: 23.67 MB | Pages: 28 in PDF or view online for FREE

- 21 -

I2C Control

PNX8537 Platform

SDA2_3.3V,SCL2_3.3V

Module

X4 : 0x72

MICOM

0x50

NTP3000

0x54

TUNER

Digital

R:0x1E

W:0x1F

[Master I2C 1]

TUNER

Analog

R : 0x87

W : 0x86

NVRAM

24LC512

W : 0xA6

R : 0xA7

SDA1_5V, SCL1_5V

[Master I2C 0]

[Slave I2C 0]

[Slave I2C 2]

[Slave I2C 1]

EDID

AT24C02BN

EDID

AT24C02BN

EDID

AT24C02BN

EDID

AT24C02BN

TMDS

351PAG

IC202

FLI10306

EDID

AT24C02BN

[DSDA1,DSCL1]

MICOM

EDID

AT24C02BN

- 22 -

Power Voltage

 

BlockDiagram

12V

KA7809

(IC1005)

5V

KIA78R05F

(IC1011)

+5V-TUNER

NTP3000A

16V 

P_+16V

KIA78R33F 1A

(IC1012)

3.3V_ON

+3.3V-TUNER

+3.3V

AZ1117H-1.8TRE

(IC1004)

+1.8V

AZ1117H-3.3

(IC1003)

+3.3V_STBY

FET Power  S/W

(Q1003)

+5V

RL_ON/PWR_ON/OFF

Tuner

Tuner

HDMI S/W, CI buffer, Flash Memory, 

NTP3000A, 

Chaplin(AUD_VREFP

) 

Tuner, NTP3000A

RS-232 Driver, Sub 

Micom

,  

HDMI S/W, OPTIC Jack, NVRAM, USB  

- 23 -

Power Voltage

 

BlockDiagram

3.3V_ON

1.8V_DOUGLAS_EN

1.26V_DOUGLAS_EN

- 24 -

307

120

121

306

560

570

310

571

302

202

205

590

240

910

250

580

204

203

303

305

300

304

301

200

206

201

280

290

230

520

270

260

400

900

901

A2

591

Many electrical and mechanical parts in this chassis have special safety-related characteristics. These
parts are identified by       in the Schematic Diagram and EXPLODED VIEW. 
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards. 
Do not modify the original design without permission of manufacturer.