Toshiba 15LV505 service manual Tuner Schematic Diagram, Agcif 1OUTIF

8

7

6

5

4

3

2

1

A

FROM/TO REGULATOR

GND

D5.0V

TUNER+30V

D3.3V

FROM/TO SCALER VIDEO/AUDIO

I2C_DATA

I2C_CLK

TO AV SWITCH

TU_AUDIO_R

TU_AUDIO_L

A

B C D E F G H

TUNER SCHEMATIC DIAGRAM

(DIGITAL PCB)

TU5801

ENG36E18KRF

23 NC(BB)

SIF-out

V OUT

IF OUT

IF AGC

IF OUT1

IF OUT2

25

NC

NC

NC

AGC

+5V

TU

+30V

SDA

SCL

AFT

+5V

1

2

3

4

5

7

8

9

11

12

14

15

16

17

18

19

20

21

22

24

NC

NC

NC

NC

1.0

NC

1.0

5.0

NC

30.0

5.0

5.0

2.5

5.0

NC

1.0

0.6

1.4

8

W878

FROM/TO SCALER VIDEO/AUDIO

TU_CVBS

L5801

22uHNLV25

33P CH

C5801

C5803

6.3V 220 V-S

C5804

0.1 B

C5805

1 F

50V(2125)

C5806

0.1 B

C5809

0.1 B

_AGCIF

1OUTIF__

C5811

22P CH

C5812 22P CH

C5814

6.3V 220 V-S

B5803

102T02FCM1608KF-

__2OUTIF

B5801

FCM1608KF-102T02

R5801

150K

R5803

100

R5802

47K

R5820

100

R5819

100

B5802

R5804

100

C5845

0.01B

C5844

0.01B

FCM1608KF-102T02

C5846

SCALER IC

56P CH

IC2801

R8J66954BG

L5805

W802

W846

1.4

AA1

0.22uHLQW18AN

ADIN1

R5824

47K

W804

W858

0.6

Y1

ADIN0

R5825

47K

1.6

W2

ADVREF0

VSB_ADC

1.6

Y2

ADVREF1

0.8

AA2

ADVREF2

C5852

0.1 B

C5853

0.1 B C5855

0.1 B

R5823

1.0

AA7

IF_AGC

1K

R5817

3.3K

R5818

3.3K

C5847

0.1 B

2.4

TUNER_IF

TU_AFT

AA5

MCUADIN0

MCU_ADC

I2C0C

R5822

3.3

Y9

SICL0

I2C0D

R5821

47

3.3

IIC0

AA9

SIDA0

47

C5822 47P CH

C5821

47P CH

R5807

100K

C5819

B5804

6.3V 220 V-S

R5808

FCM1608KF-151T06

BTSC DEMODULATOR IC

4.7K

IC5801 AN5832SA-E1V

C5823

0.33

B

3.5

NC

PILOT DET

NC

D5803

MA111

R5809

4.7K

C5818

0.1 B

NC20191817

NC

NOISE DET

14131516

2.9

C5835

0.1

B

R5813

3.5

PLL

L+R REF

2.2

C5833

2.2

B

C5817

0.22

B

C5824 3.3K

0

VCC

SAP DET

2.8

C5834

0.033

B

SIF_OUT

2.2

2223 21

INPUT

SIF/BB

1110 12

NC

2SK3019_TL

D5804

MA111

C5826

2.2

B

2.2

STEREO REF

FOMO

NC

BUFFER

0.001

B

C5825

4.7

B

3.3

SIF REF

MUTE

NC

Q5802

S

D

R5810

100

5.0

24

SDA/SAPID

MODE

9

NC

3.3

5.0

G

0

25

GND

AGC SW

8

NC

3.3

R5811

180K

NC26

PE

IIC/PARA

7

5.0

S

D

R5812

100

5.0

27

SCL/STID

SPE FIL

6

2.4

C5837

0.022

B

3.3

5.0

G

C5827

2.2

B

1.7

28

AGC DET

SPE DEL

5

2.4

C5838

0.1

B

3.3

2.2

29

0.5

C5839

3.3

B

PCBDH0

BUFFER

ROUT

SPE TIME

4

NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME

CAUTION:SINCE THESE PARTS MARKED BY ARE

CEH420

2SK3019_TL

30

LOUT

WB DET

3

Q5801

2.2

2.9

C5840

0.33

B

CRITICAL FOR SAFETY,USE ONES

NC31

NC

WB TIME

2

0.5

C5841

10 C

OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE

C5830

2.2

B

1.3

32

L-R RBF

NC

1

NC

DESCRIBED IN PARTS LIST ONLY

ATTENTION

NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED

:LES PIECES REPAREES PAR UN

ETANT

WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST

DANGEREUSES AN POINT DE VUE SECURITE

WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.

N’UTILISER QUE CELLS DECRITES

DANS LA NOMENCLATURE DES PIECES

B

C

D

E

F

G

H

8

7

6

5

4

3

2

1

H-13 H-14