Toshiba 20VL14, Service Manual

22

STANDARD MCU

MX10FMAXDQC

0.01

STANDARD

MCU

91

4

Title

Size

Document

Number

Rev

Date:

Sheet

of

+5VSB

+5VSB

+5VSB

VCC9

+5VSB

+5VSB

+5VSB

+5VSB

+5VSB

+5VSB

+5VSB

+5VSB

+5VSB

+5VSB

VCC

+VIN

+5VSB

SUB_I2C_CLK

DA0 DA1 DA2 DA3 DA4

DA[0..4]

SD4

SA14

SA13

SA8

TXD

SD6

SA12

SA10

SD1

SD5

PSEN

SA11

PSEN

SUB_I2C_CLK

SD0 SD1 SD2

EA

SD3

SA13

WR

SD6

SD2

ALE

SA15

SD[0..7]

SD5

SA11

SD3

SD7

SA12

SD7

EA

SA8

SA14

SA10

RESET

SA9

SA15

ALE

RD

SD0

SD4

SA9

I2C_SCL I2C_SDA

RESET

RESET

S_OE

S_OE

S_CLK

S_LOAD S_CLK VOL_DOWN_KWY INPUT_KEY

S_DATA_IN

S_STROBE S_DATA_OUT

SUB_I2C_SDA

SUB_I2C_SDA

I2C_SDA I2C_SCL

I2C_SDA I2C_SCL

S_DATA_OUT S_DATA_IN S_STROBE S_LOAD

S_CLK /S_OE

S_LOAD S_STROBE S_DATA_IN S_DATA_OUT S_CLK

TXD

R256

2.7K/0603

Q36

SMBT3906/SOT23

SMD

1

3

2

R257 8.2K/0603

R258 20K/0603

RP35

8P4R/1K

1 3 5 7

2 4 6 8

R R R R

1 2 3 4

R281

1K/0603

D19

ZD5.6V/0.5W/SMD

2

1

R155 4.7K/0603

D20

ZD5.6V/0.5W/SMD

2

1

R282

10K/0603

R276

10K/0603

R275

10K/0603

C248

104P/0603/Y5V/50V

R158

100/0603

R157

NI

U17

74HC165

SMD

1 2 3 4 5 6 7 8

16 15 14 13 12 11 10 9

/PL CP D4 D5 D6 D7 /Q7 GND

VCC /CE

D3 D2 D1 D0 DS Q7

D10

NI

2

1

C241

104P/0603/Y5V/50V

R165

1M/0603

U14

(MX10FMADQC)/PLCC

SOCKET

SMD

44PIN

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

32

33

34

35

36

37

38

39

40

41

42

43

44

1

2

3

4

5

6

P1.5 P1.6 P1.7 RST P3.0,RXD NC P3.1,TXD P3.2,/INT0 P3.3,/INT1 P3.4,T0 P3.5,T1

P3.6

/WR

P3.7

/RD

XTAL2

XTAL1

VSS

NC

P2.0

/A8

P2.1

/A9

P2.2

/A10

P2.3

/A11

P2.4

/A12

P2.5/A13

P2.6/A14

P2.7/A15

/PSEN

ALE

NC

/EA

P0.7/AD7

P0.6/AD6

P0.5/AD5

P0.4/AD4

P0.3

/AD3

P0.2

/AD2

P0.1

/AD1

P0.0

/AD0

VCC

NC

P1.0

/T2

P1.1

/T2E

X

P1.2

P1.3

P1.4

R156

4.7K/0603

Y4 14.318MHZ/49US/DIP

1

3

2

Y

G

Y

C245

27P/0603/NPO/50V

C246

27P/0603/NPO/50V

C372

100P/0603/NPO/50V

C360

100P/0603/NPO/50V

C359

100P/0603/NPO/50V

C242

104P/0603/Y5V/50V

Q24

SMBT3904/SOT23

SMD

1

3

2

C374

100P/0603/NPO/50V

C373

100P/0603/NPO/50V

+

-

U20B

LM358/SO8

S

MD

5

6

7

8

4

JP1

NI

12 34 56 78 91

0

11

12

13

14

15

16

17

18

19

20

21

22

R154

4.7K/0603

U19

ATMEL

24C08/SO8/SMD

1 2 3 4

8 7 6 5

A0 A1 A2 GND

VCC WA SCL SDA

+

-

U20A

LM358/SO8

SMD

3

2

1

8

4

R175

10K/0603

R166

10K/0603

R168

10K/0603

R167

NI/0603

R169

NI/0603

R174

4.7K/0603

C250

104P/0603/Y5V/50V

R177 20K/0603

R176

20K/0603

RP28 8P4R/10K

1

3

5

7

2

4

6

8

R

R

R

R

1

2

3

4

RP29

8P4R/20K

1

3

5

7

2

4

6

8

R

R

R

R

1

2

3

4

R161

100/0603

Y3

32.768K/DIP

U16

PCF8563

SMD

1 2 3 4

5

6

7

8

OSCI OSCO /RESET GND

SDA

SCL

/INT

VCC

R160

100/0603

R163

100/0603

R162

100/0603

L32 MLB-160808-0120L-N2/0603

C249

104P/0603/Y5V/50V

RP26

8P4R/4.7K

1

3

5

7

2

4

6

8

R

R

R

R

1

2

3

4

RP24

8P4R/4.7K

1

3

5

7

2

4

6

8

R

R

R

R

1

2

3

4

C244

104P/0603/Y5V/50V

R159

NI/0603

R173 NI/0603

CN21

NI

1 2

RP25

8P4R/4.7K

1

3

5

7

2

4

6

8

R

R

R

R

1

2

3

4

U13

MAX810MD

4.38V/SOT23

1

3

2

GND

RESET

VCC

D9

1N1448(BAS32L)/SMD

2

1

RP27

8P4R/4.7K

1

3

5

7

2

4

6

8

R

R

R

R

1

2

3

4

C247

104P/0603/Y5V/50V

R172 100/0603

D8

NI

2

1

U15

74HCT4094

SMD

1 2 3 4 5 6 7 8

16 15 14 13 12 11 10 9

STR D CP QP0 QP1 QP2 QP3 GND

VCC

OE QP4 QP5 QP6 QP7 QS0 QS1

C243

104P/0603/Y5V/50V

R164

NI/0603

R170

4.7K/0603

R171

4.7K/0603

J2

NI/4

pin

head

1 2 3 4

BLK_ADJ

5

DA[0..4]
7

WR
7

I2C_SDA

1,2,3,6,10,12,14

ALE

7

IR_SIGNAL
5

RD
7

SD[0..7]

7

SYS_ON
4

I2C_SCL

1,2,3,6,10,12,14

RST_SCALER
7

PANEL_ON

4

VOL_UP_KEY

5

CH_DOWN_KEY

5

CH_UP_KEY

5

POWER_KEY

5

VOL_DOWN_KEY
5

INPUT_KEY
5

LED_R
5

LED_G
5

BLK_ON

5

MUTE_AUDIO

11

AMP_POWER

4

LED_B
5

SUB_I2C_CLK

SUB_I2C_SDA