LG Electronics 42LT640H-ZA Copyright 2012 LG Electronics. Inc. All rights reserved, Thermal

MICOM MODEL OPTION

+3.5V_ST

NON_CLOCK	R302 10K	OPT	R308 10K	OPT	R311 10K
					MODEL1_OPT_0
					MODEL1_OPT_1
					MODEL1_OPT_2
					MODEL_OPT_3
CLOCK	10K		10K		10K
	R303	OPT	R309	OPT	R317

MODEL OPTION

PIN NAME	PIN NO.	HIGH	LOW
MODEL_OPT_0	80	OPT	OPT
MODEL_OPT_1	79	OPT	OPT
MODEL_OPT_2	78	NON_CLOCK	CLOCK

Step Up regulator 3 . 3V to 5V(MAX 250mA)

				3 . 3V to 5V
				IC300
			SC632ULTRT				[EP]GND
		GND	1			8	C2-	3 . 3V to 5V	+5V_ST
				THERMAL				C302
					9
	3 . 3V to 5V	C1+					C2+	2 . 2uF
+3.5V_ST			2			7		10V
	C301
	2 . 2uF	C1-					OUT	3 . 3V to 5V
	10V		3			6
								C303
3 . 3V to 5V		IN					EN	22uF
			4			5		25V
	3 . 3V to 5V
BLM18PG600SN1D	C300								5V_ON/OFF
L300	22uF
								R300
	25V
								10K
								3 . 3V to 5V

CLOCK_SCL

CLOCK_SDA

CEC_REMOTE_NEC

5V_ON/OFF

CEC_ON/OFF

NEC_IR

LED_R/BUZZ

UART_SW2

RL_ON

POWER_ON/OFF_1

UART_SW1

UART_DBG_SW DBG_SW INV_CTL

PANEL_CTL

SOC_RESET

POWER_DET

MICOM RESET

+3.5V_ST

+3.5V_ST

e d t o C r y s t a l

IC302

74LX1G14CTR

R352

NEC

NC

5

VCC

1

47K

C l o s

C305

13pF

C307

13pF

RESET_

1A

C309

BU300

+3.5V_ST

SW300

0 . 1uF

PKLCS1212E4001-R1

2

16V

JTP-1127WEM

2

1

_

GND

1Y

X300

C308

3

4

1

10MHz

2 . 2uF

4

3

10V

1M

R345

2

22

SIGN190368

L301

BLM18PG600SN1D

F

R348

RESETR34922

R360 /PI

+5V_ST

0.1u 16V

100K

+3.5V_ST

C304 Fu10.

16V EVDD0

FLMD0 FLMD0 P123/XT1

P40/TOOL0 TOOL0 P41/TOOL1 TOOL1 P42/TI04/TO04

P46/INTP1/TI05/TO05

P120/INTP0/EXLVI

L302

P122/X2/EXCLK

BLM18PG121SN1D

C306

P124/XT2

P43/SCK01

P44/SI01

P45/SO01

P47/INTP2

P301

P121/X1

E

Q306

E

Q307

E Q308

E

Q309

E Q310

12507WR-12L

EVSS0

REGC

2SA1504S

2SA1504S

2SA1504S

2SA1504S

2SA1504S

R310

R312

VDD

VSS

B

B

B

B

B

4.7K

4.7K

100

99

98

97

96

95

94

93

92

91

90

89

88

87

86

85

84

83

82

81

C

C

C

C

C

1

R336

22

P60/SCL0

1

80

P140/PCLBUZ0/INTP6

MODEL1_OPT_0

R337

22

P61/SDA0

P141/PCLBUZ1/INTP7

2

79

MODEL1_OPT_1

2

P62

P142/SCK20/SCL20

Can not use GPIO - P62,P63

3

78

MODEL1_OPT_2

P63

P143/SI20/RXD2/SDA20

R365

22

4

77

NEC_DBG_RX

3

R313

22

P31/TI03/TO03/INTP45

P144/SO20/TXD2

R366

22

76

NEC_DBG_TX

P64/RD

6

75

P145/TI07/TO07

P65/WR0

7

74

P00/TI00

R367

22 OPT

4

R315

22

P66/WR1

8

IC301

73

P01/TO00

R368

22

SUB_AMP_MUTE

P67/ASTB

P02/SO10/TXD1

9

72

R369

22

5

R316

22

P77/EX23/KR7/INTP11 10

71

P03/SI10/RXD1/SDA10

NEC_EEPROM_SDA

P76/EX22/KR6/INTP10 11

UPD78F1164GF(S)70

P04/SCK10/SCL10

R370

22

NEC_EEPROM_SCL

OPT R318

22

P75/EX21/KR5/INTP9 12

NEC_MICOM

69

P131/TI06/TO06

6

R319

22

P74/EX20/KR4/INTP8 13

68

P130

AMP_MUTE

IC303

R320

22

P73/EX19/KR3

14

67

P20/ANI0

KID65003AF

OPT R321

22

P72/EX18/KR2

15

66

P21/ANI1

7

R322

22

P71/EX17/KR1

16

65

P22/ANI2

I 1

O1

R323

22

P70/EX16/KR0

17

64

P23/ANI3

1

8

16

OPT R324

22

P06/WAIT

18

63

P24/ANI4

R325

22

P05/CLKOUT

19

62

P25/ANI5

I 2

O2

EVSS1

20

61

P26/ANI6

2

15

9

R326

22

P80/EX0

21

60

P27/ANI7

+5V_ST

R327

22

P81/EX1

22

59

P150/ANI8

I 3

3

O3

10

14

R328

22

P82/EX2

23

58

P151/ANI9

R378

R329

22

P83/EX3

24

57

P152/ANI10

I 4

O4

10K

4

11

R330

22

P84/EX4

25

56

P153/ANI11

13

OPT R331

22

P85/EX5

26

55

P154/ANI12

C

Q301

I 5

O5

R332

22

P86/EX6

27

54

P155/ANI13

12

B

MMBT3904(NXP)

5

12

OPT R333

10K

P87/EX7

P156/ANI14

28

53

4.7K

+5V_ST

R334

0

P30/INTP3/RTC1HZ

29

52

P157/ANI15

I 6

O6

13

R371

E

EVDD1

AVSS

6

11

30

51

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

R379

10K

I 7

7

O7

P52/EX10

P53/EX11

P54/EX12

22P55/EX13

22P56/EX14

22P57/EX15

P17/EX31/TI02/TO02

P16/EX30/TI01/TO01/INTP5

22 P13/EX27/TXD3

22 P12/EX26/SO00/TXD0

22 P11/EX25/SI00/RXD0

22 P10/EX24/SCK00

10

+3.5V_ST

P50/EX8

P51/EX9

P15/EX29/RTCDIV/RTCCL

22 P14/EX28/RXD3

P110/ANO0

22P111/ANO1

C

AVREF1

AVREF0

B

Q302

GND

8

COMMON

MMBT3904(NXP)

9

4.7K

+5V_ST

R372

E

R380

10K

C

22

B

Q303

R358

4.7K

MMBT3904(NXP)

OPT

10K

R373

E

+5V_ST

R344

R346

R347

R350

R351

R353

R354

R355

R356

R357

R381

10K

+3.5V_ST

C

B

Q304

P300

AMP RESET

SIDE HP MUTE

EXT5V CTRL

EXT12V CTRL

NEC RX

NEC TX

IR OUT CTRL

12507WS-06L

SCART1 MUTE

EXT PWR DET

MST NEC RX

MST NEC TX

EEPROM SW

4.7K

MMBT3904(NXP)

R374

E

+5V_ST

R382

R383

R384

1

4.7K

4.7K

10K

C

MICOM_RESET

2

B

Q305

R397

4.7K

MMBT3904(NXP)

TOOL0

22

3

R376

E

4

R361

0

KEY1

R398

TOOL1

22

5

KEY2

R362

R399

0

22

FLMD0

6

7

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.

EMEA INTERACTIVE

GP4_MSTAR	2011 . 08 . 21
SUB MICOM	3	2 0

Copyright © 2012 LG Electronics. Inc. All rights reserved.	LGE Internal Use Only
Only for training and service purposes