BEKO 20LCD Schematics VIDDECODER

654321

+3.3V+5V

L400
FERRIT BEAD

R401

3

22R

D

R418

C443

0.1uF

0.1uF

Y_IN

C_IN

Vin1

C445

C447

0.1uF

Vin2

C444

0.1uF

C446

0.1uF

Vin

C448

0.1uF

SC1_FBL

R430
47K

SC2_St
SC1_St
SCL5V
SDA5V

/RESET

/STDBY

13

12

100R

R419
100R

3

5

1
2

6
7

R420 100R

R421
R422 100R

R436

4.7K

Z1
Z0

Y1

Y0

X1
X0

INH

VEE

GND

C438
47pF

GND

C439
47pF

GND

100R

HEF4053BT

U401

16

8

VDD

VSS

R410
47K

C400 0.1uF

C401 0.1uF

C402

C440

C403

47pF

GND

C437
47pF

C404

GND

C434
47pF

GND

C441

2.2uF

GND GND

4

Z

15

Y

14

X

11

A

10

B

9

C

1

C449
220pF

0.1uF

0.1uF

0.1uF

C442

0.1uF

CVBS_Out

C409

0.1uF

C410

0.1uF

C411

0.1uF

3

Q402
BC848B

2

GND

R412
10K

Vin

Vin2

SC2_St
SC1_St
SCL5V
SDA5V
/RESET

/STDBY
SC1_FBL

Y_IN

C_IN

Vin1

+12V

L410

FERRIT BEAD

SC_B

R437

2.2K

GND

SC_B

SC_G

SC_R

C450

0.1UF

R431
47K

R432
47K

R433
47K
R434
47K
R435
47K

SC_G

SC_R

C

GND

Vo

R406
75R

R106
75R

R403
75R

Q401

BC848B

2

R4041KR405

R408
220R

C412

22uF

10V

R402
12K

GND

1

22K

GNDGND

C408
10uF C419

10V

GND

C436

C422 3.3pF

0.1uF

GND

C423 3.3pF

GND

C435

+

22uF

0.047uF

C413

0.1uF

C420

10uF

10V

C414

0.1uF

C418
47pF

GND

C421

0.047uF

SCL
SDA

X400

20.25 MHz

C415

0.1uF

GND

GND

C416

220pF

9

10

VSUPCAP

29

VSUPA26VSUPD

VSUPLLC

36

VSUPY

C424

220pF

45

VSUPC

52

VSUPSY

INTLC

MSY/HS
FSY/HC

FPDAT

CLK20

FFRSTW

FFWE

VPC3230D

80

LLC2
LLC1

AVO

CLK5

FFOE
FFRE

FFIE

U400

C7
C6
C5
C4
C3
C2
C1
C0

Y7
Y6
Y5
Y4
Y3
Y2
Y1
Y0

VS

C417

220pF

76

69

59

8

NC

61

NC

VSUPF

VSTBY

VSUPAI

70

VOUT

72

VIN1

71

CIN

73

VIN2

74

VIN3

75

VIN4

79

FB1IN

1

B1/CB1IN

2

G1/Y1IN

3

R1/CR1IN

4

B2/CB2IN

5

G2/Y2IN

6

R2/CR2IN

78

VREF

17

VGAV

66

VRT

18

YCOEQ

15

RESQ

13

SCL

14

SDA

63

XTAL2

62

XTAL1

67

I2CSEL

16

TEST

ASGF7ASGF64GNDD11GNDCAP12GNDPA25GNDLLC30GNDY35GNDC46GNDSY51GNDF65ISGND68GNDAI77AISGND

GND

C425

220pF

VDD3

C432

0.1uF

GND

VCLK

YUV[0..7]

C433

22uF

10V

6
7
8

6
7
8

C429

0.1uF

YUV7
YUV6
YUV5
YUV4

YUV3
YUV2
YUV1
YUV0

C430

0.1uF

C431

0.1uF

YUV[0..7]

C426

0.1uF

41
42
43
44
47
48
49
50

Y7

31

Y6

32

Y5

33
34

Y4
Y3

37

Y2

38

Y1

39

Y0

40

27
28
53
57

GND

54

R415
220R

R414
220R

GND

C455
47pF

C454
220pF

56
55

58

60
24

23
22
21
20
19

C428

0.1uF

0.1uF

47R

R400

RN401

4 5
3
2
1

RN400

4 5

47R

3
2
1

47R

O_HS

O_VS

L401
FERRIT BEADC427

D

C

OSD_FBL

OSD_B

OSD_G

B

OSD_R

/RESET

SCL

SDA

C405

0.1uF
C406

0.1uF
C407

0.1uF

B

Proje= 20'' LCD TV
(CHIMEI)
Kod= ZH1.190-02
schematic= VIDEO DECODER

A

A

Beko Elektronik A.S.

Rev

A

9

C

Title

24-Sep-2003

2. Video Decoder

Control

Sheet 4

Size

Document Number
Date

1 2 3 4 5 6

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