Changhong Electric LS18, Maintenance Manual

 

 

31 

 

 

U19

SGM330

S1A

2

S1B

5

S1C

11

S1D

14

S2A

3

S2B

6

S2C

10

S2D

13

IN

1

DA

4

DB

7

DC

9

DD

12

VCC

16

GND

8

EN

15

5VPI

C156

0.1u

HD_SEL1

Pbin+
Prin+

SIDE AV Input

DVD-Y

Q23

3904

1

2

3

DVD-Pb

DVD-Pr

DD60

ESD-0603

DD59

ESD-0603

DD61

ESD-0603

R

23

5

NC/

7

5

R

R

24

6

NC/

7

5

R

R

23

6

NC/

7

5

R

Pbin+

RGB1_SOG

2

R138

0R

C97

1n

R130

33R

C51

47n

C46

47n

2

2

C96

47n

2

R132

33R

R131

33R

DVDM-R

U17

SGM330

S1A

2

S1B

5

S1C

11

S1D

14

S2A

3

S2B

6

S2C

10

S2D

13

IN

1

DA

4

DB

7

DC

9

DD

12

VCC

16

GND

8

EN

15

L45

FB220/100mA

5VPI

HD1-L

HD-VSW0

2,6

5VA

HD1-R

C155

0.1u

C50
560p

HD_SEL

R326
12K

R214

10K

C55
560p

R327

10K

R328
12K

C126 2.2u

DD13

ESD-0603

DVD-Y

DD33

ESD-0603

Y in

DD36

ESD-0603

AV1-L

R352
10k

+

CA77

100uF/16V

R356
22k

DD34

ESD-0603

R210
10K

AV3-R

AV3-V

AV3-L

R209
10K

DD25

ESD-0603

AV3-L

DVD-ON/OFF

R165
0R

SD2-C

R114

68R

R111

68R

C90

47n

RGB0_BIN-

2

RGB0_RIN-

2

C91

47n

RGB0_GIN-

2

C92

47n

R117

68R

C127 2.2u

VIDEO_OUT

C40
330p

R53
75R

R50
75R

C74
330p

R211

4.7K

SC1_FB

2

R232

75R

DD35

ESD-0603

Title

Size

Document Number

Rev

Date:

Sheet

of

深圳市高新区南区科技南十路国际技术创新研究院C 座4楼

TEL:0755-26996895     FAX:0755-26996830

1.0

AVIN

7

10

Monday , April 12, 2010

HD1-Pr

HD-Rin

2

HD-Lin

2

5VA

Prin+

R

2

R

2

RGB0-SOG

2

R

2

Pbin

HD-VSW1

2,6

R

43

7

1

0K

X3,Y3

X2,Y2

3.3VA

R154

100R

0

AU-SW0

1

1

0

CON46
AVW-15-5R-8.5

2

3

4

1

5
6

7

8

9

10

11

1

Output

AU-SW1

0

1

X1,Y1

X0,Y0

0

R95

33R

C101 47n

SCV2-Cin

2

SC2-Y

Pbin

DD37

ESD-0603

AV1-V

R167

0R/NC

C103 2.2u

Pb

Y

U20
74HC4052

X0

12

X1

14

X2

15

X3

11

Y 0

1

Y 1

5

Y 2

2

Y 3

4

A

10

B

9

X

13

Y

3

VCC

16

GND

8

INH

6

VEE

7

DD26

ESD-0603

AV3-R

R54

100R

C95

2.2u

Y in+

R166
0R

SC2-OUTL/GND

C64
330p

C100 47n

R45

33R

R46
75R

AV3-Vin+

2

SC1_FSO
0-2v: TV Mode 
5-8v: 16:9 AV  
9.5-12v: 4:3 AV 

HD1-Pr

HD1-Pb

HD1-Y

C128 2.2u

DVD-ON/OFF

DVD-Pb

VIDEO_OUT

SC2-Y

R94

33R

C71

47n

R60

100R

SCV2-Y in

2

C53

0.1u

C104 2.2u

R64
470R

Q33

3906

R65
75R

R204 75R

R207 180R

VGA-R

Q18
3904

1

2

3

12VA

R350
22k

R230

10K

R351
10k

SC2_FS

2

R243

2.2K

CVBS2_OUT

2

DD19

ESD-0603

R192
10K

R

21

8

1

00

K

R

25

6

1

00

K

R

25

8

1

00

K

R

21

9

1

00

K

R

26

0

1

00

K

R

26

2

1

00

K

SC2-OUTR

9

SC2-OUTL

9

HALF SCART

DD74

ESD-0603

DD65

ESD-0603

CON16

SCART

2

4

6

8

10

12

14

16

18

20

1

3

5

7

9

11

13

15

17

19

21

2

4

2

5

AV2OUT-V

R

24

1

7

5R

DD75

ESD-0603

SC2-C

SC2-Y

R

24

2

7

5R

R

25

4

7

5R

SC2_FSO/AV1-V

SC2-L

SC2-OUTL

SC2-R
SC2-OUTR

SPDIFO

2

R78

330R

CLOSED TO MSD306

AU_SEL0

R

22

7

1

00

K

R

21

6

1

00

K

DD31

ESD-0603

R346
100R

C98

2.2u

SPDIF Output

DVD-IR

R

22

6

1

00

K

3.3VA

R44
12K

R220
12K

SC2-C

C27
560p

R223

10K

C54
560p

R244

10K

AV2-Rin

2

AV2-Lin

2

5VA

C41

0.1u

Keep spacing for L/R

Keep AGND trace with signal 

AV2OUT-V

R

40

4

1

0K

C66

2.2u

DD38

ESD-0603

SD2-C

R195

100R

C16

47n

R56
470R

R168

0R/NC

R30
75R

DD27

ESD-0603

R63
75R

+

CA75

100uF/16V

Q32

MMBT3906

C29

2.2u

R62

75R

R59

180R

RCA-L

C133 2.2u

CON8

2

3

1

5VA

C19
330p

Prin

Q14
MMBT3904

1

2

3

CON35

CON10-2.0mm

1
2
3
4
5
6
7
8
9

10

R28

33R

C105 2.2u

12VA

C110 2.2u

ISP-RXD

AV1-Vin+

2

SC1_FS

2

AU_SEL1

R229

10K

R231

2.2K

CVBS_OUT

2

DD12

ESD-0603

C99

2.2u

DVD_ON/OFF

2

C157

0.1u

L49

FB/100mA

HD2-Y

Prin

Y

Pr

Pb

R

11

0

7

5R

DD45

ESD-0603

DD63

ESD-0603

DD62

ESD-0603

C22

2.2u

DD53

ESD-0603

R

12

9

7

5R

R

12

8

7

5R

Q21

3904

1

2

3

DVD-Y

HD1-L

HD2-R

R

27

7

1

00

K

R

27

9

1

00

K

R

22

8

1

00

K

R

23

4

1

00

K

R

28

1

1

00

K

SC2-C

R

28

4

1

00

K

R

28

9

1

00

K

R

28

5

1

00

K

R

29

0

1

00

K

C111 2.2u

HD2-L

HD2-L

C67
560p

R

30

0

1

00

K

R

29

1

1

00

K

HD2-R

R330

10K

R329
12K

R

30

1

1

00

K

C63

2.2u

DVD-Pr

R331

10K

C69
560p

R332
12K

HD2-Pr

HD2-Pb

HD2-Y

DVD-R

5VPA

CON43

CON11-2.0mm

1
2
3
4
5
6
7
8
9

10
11

DD69

ESD-0603

R

32

2

1

00

K

R

32

1

1

00

K

DD77

ESD-0603

R

32

5

1

00

K

DD76

ESD-0603

R

32

3

1

00

K

R

33

5

7

5R

R

33

3

7

5R

SD_R

R

33

7

7

5R

RCA2-L

DVD-L

HD1-R

RCA2-R

SD_L

R118

100R

R127

100R

DDC-SCL

DDC-SDA

R169

0R/NC

SD2-Y

C35

2.2u

R82
12K

SD_L

R80

10K

SD_R

R85

10K

R89
12K

C47
560p

C254
560p

5VPI

HD-AUSW2

2

Q27
3904

1

2

3

R435

10K

DD22

ESD-0603

R208

4.7k

5VPA

SC2-R

AU_SEL1

C45

47n

LINEOUTR

9

LINEOUTL

9

R83

33R

R81

33R

C48

47n

C49

47n

R84

33R

C43

1n

R79

0R

C

2

2

2

2

R

21

7

1

00

K

R

23

3

1

00

K

R

25

5

1

00

K

HD-AUSW1

2

R432

10K

Q26
3904

1

2

3

Pbin

ISP-TXD

R202

4.7k

5VPA

AU_SEL0

R

26

3

1

00

K

R

26

5

1

00

K

R

26

4

1

00

K

R

26

9

1

00

K

R

26

8

1

00

K

R

27

2

1

00

K

AV2OUT-V/GND

SD2-Y

5VA

5VPA

R427 0

SC2-OUTL/Y

Audio switch

+

CA76

100uF/16V

C83

2.2u

DVD-L

DVD-R

C34
560p

DVDM-R

R40

10K

R41
12K

R42

10K

C38
560p

R43
12K

DVDM-L

C112 2.2u

HD2-Pb

Audio switch

2010.3.18

FULL SCART

CON15

SCART

2

4

6

8

10

12

14

16

18

20

1

3

5

7

9

11

13

15

17

19

21

2

4

2

5

AV1-V
AVOUT-V

SC1_FSO

SC1_FSO

AV1-L

Pr

AV1-R
LINEOUTR

LINEOUTL

CON48

CON3-2.0mm

1
2
3

DVDM-L

DVD-Pb

C37

2.2u

DD32

ESD-0603

HD1-Y

DVD-IR

DD23

ESD-0603

SC2-L

C28

2.2u

5VPI

DVDIR_EN

2

C84

2.2u

R92

33R

R91

33R

C56

47n

C57

47n

Y in

C58

47n

R90

33R

C62

1n

R97

0R

DD28

ESD-0603

Y in+

R76

100R

C42

47n

R48

33R

Comb DVD interface

C77

47n

R51

33R

R167,R168,R169=0R if no DVD module

VGA-B

VGA-G

SD2-Y

CON47
AVW-15-5R-8.5

2

3

4

1

5
6

7

8

9

10

11

C72
NC/0.1u

If U6=24C01/24C02,solder R125 

and left R119 float

DDC-SCL
DDC-SDA

U6

NC/24C04

NC

1

NC

2

NC

3

GND

4

SDA

5

SCL

6

VCLK

7

VCC

8

R

12

2

NC/

1

0

K

R125
NC/10k

R119
NC

DD52
BAT54C

3

1

2

R

12

3

NC/

1

0

K

VGA-5V

VGA-5V

DD43

ESD-0603

DD42

ESD-0603

R

86

7

5R

R

88

7

5R

DD41

ESD-0603

R

87

7

5R

DDC-SCLIN

R196

100R

VGA-HS

R113

0R

R100

68R

C113 2.2u

RCA-R

C76

47n

R102

68R C81

47n

Video switch

COMP_Y -

2

COMP_R-

2

R156

0R

R34
12K

R104

68R

COMP_B-

2

C88

47n

R38
12K

R32

10K

C26
560p

VGA-VS

C33
560p

VGA-HS

DD29

ESD-0603

AV1-R

VGA-HS

VGA-VS

R36

10K

VGA INPUT

AV1-Rin

2

AV1-Lin

2

DDC-SDAIN

DDC-SDAIN

VGA-VS

Keep spacing for L/R

Keep AGND trace with signal 

ISP-RXD

2

DD18

ESD-0603

DD14

ESD-0603

DDC-SCLIN

CON7

VGA

5
10
4
9
3
8
2
7
1

15

14

13

12

11

6

1

6

1

7

Y in

C65
560p

R115
12K

SD2-C

HD2-Pr

R105

100R

R112

10K

R96

68R

R98

68R

R

10

9

2

2K

R213

100R

C59

47n

Prin

C60

47n

DD17

ESD-0603

RGB1_B-

2

RGB1_R-

2

R99

68R

RGB1_G-

2

C61

47n

R101

10K

VGA-B

R

10

8

2

2K

R200
75R

C73
330p

C78
330p

R201
75R

VGA-R

C68
560p

R106
12K

DD16

ESD-0603

R103

100R

DD24

ESD-0603

AV3-V

VGA-Lin

2

VGA_VSY NC1 2

VGA_HSY NC1 2

DD21

ESD-0603

DD20

ESD-0603

ISP-TXD

2

VGA-Rin

2

VGA-G

C23

2.2u

AV1-L

+

CA74

100uF/16V

SV&PC_AUDIO INPUT

SV2-Y in

2

AV1-R

AV1-L

SV2-Cin

2

SC2-C

C93

2.2u

CON17
AVW-13-3RE-1S-8.5-A

4

2

6

1

3

5

7

1

3

8

1

0

1

1

1

2

9

R388 0

SC2_FSO/AV1-V

R390 0

SC2-Y

R391 0

AV1-V

R395 0

R394 0

SC

2-R

AV2OUT-V

AV2OUT-V/GND

SC2-OUTL

SC2-OUTR

DVD-Pr

CON13

AV-A-DNS

2

3
4

1

5

6

7

SC2-OUTL/Y

SC2-OUTL/GND

R401 0

AVOUT-V

R145
10K

D8

1N4148

HD1-Pb

 

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