27LS5400, 27LS540T (CHASSIS:LD02M) - LG TV Service Manual (repair manual). Page 31

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.

Q1003

MMBT3904(NXP)

IR_OUT

E

B

C

R1029

3.3K

Q1005

MMBT3904(NXP)

E

B

C

R1026

47K

IR_OUT

LVA_3M

LVA_0P

LVA_CKP

R1003

10K

R1021
100

LED_RED

LVB_2P

IR

JP1009

R1017

10K

KEY2

P1006

12507WR-12L

1

2

3

4

5

6

7

8

9

10

11

12

13

L1000

BLM18PG121SN1D

R1006

1K

R1002

1K

KEY_SCL

JP1013

LVA_2M

JP1010

R1023
10K

IR_OUT

LVB_CKP

LVA_1M

JP1007

LED_AMBER

LVB_3P

JP1008

P1002

10031HR-30

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

R1022

22

IR_OUT

R1025
10K

IR_OUT

LVA_CKM

R1004

1K

+5V_PANEL_POWER

+3.3V_ST

LVA_3P

R1000

1K

Q1001

MMBT3904(NXP)

E

B

C

+3.3V_ST

LVA_2P

LVB_1M

C1001
0.1uF
50V

LVB_0M

KEY_SDA

R1001

10K

R1028

3.3K

JP1001

JP1005

R1018

10K

Q1002

MMBT3904(NXP)

IR_OUT

E

B

C

JP1002

R1033
0

OPT

LVB_3M

C1009

0.1uF

50V

LVA_1P

JP1006

JP1011

+3.3V_ST

IR_OUT

JP1012

LVB_2M

IR

KEY1

R1027
100

LVA_0M

JP1003

LVB_CKM

LVB_0P

+3.3V_ST

JP1000

LVB_1P

R1024

10K

IR_OUT

C1002
1000pF
50V

C1013

1000pF

50V

C1014

1000pF

IR_OUT

C1003

100pF

50V

OPT

C1005

100pF

50V

OPT

C1004
10uF
10V

+3.3V_ST

+3.3V_ST

VA1000

20V

OPT

VA1001

20V

OPT

VA1005

20V

VA1004

20V

R1034
100

R1031

330

1%

R1013

330

1%

Module 

IR_OUT

8     11

LVDS/CON/IR

RED LED setting

Amber LED setting

111116
100uF Ecap
Deletion
EAE38362801

11.11.07
Harness LVDS wafer DEL

11.12.01
19V->3.3V_ST
Resistor 4EA->1EA

12.01.12
100ohm->330ohm

11.12.01
19V->3.3V_ST
Resistor 4EA->1EA

12.01.12
100ohm->330ohm

12.01.02
100ohm Add
(IR Port protection against ESD)

DMxx52/Mxx52

Mxx32

EAX64559005

2012.05.23