TOSHIBA MV13L4 Service Manual

TV BLOCK DIAGRAM

MICON/

POWER/

OPERATION/

DECK

Y/C/AUDIO/

CCD/

HEAD AMP/

IN/OUT

MICON/

POWER/

OPERATION/

DECK

L503

DEGAUSS COIL

AC IN

SCL

SDA

AT+5V

AT+25V

TU_AUDIO

TU_VIDEO

Y/C_AUDIO SD_VIDEO

X-RAY

X-RAY_TEST

2

1

Q507

FEED BACK

VR502

+B ADJ

F501

SW.

TU601

1 4

5

11

Q404

Q403

TH501

SAW FILTER CF601

1

SW.

FEED BACK

CHROMA IC IC601 M61206FP

62

1

64

54

60

31

D501

RECTIFIER

Q501 TLP621(GR)

DELAY ADJ

RF AGC

VIF AMP

AFT

DEFEAT

BLACK STRETCH

GAMMA

CLAMP

VIDEO

TONE

DELAY

CHROMA

TRAP

POWER REG. IC IC502 STR-G6623

63 48

IF AGC

AFT OUT

VIDEO

MUTE

5

VIDEO

DET

APC DET

CHROMA

BPF

ACC

HPF

34

1

52

VCO

T501

8

3

57

56

LOCK

DET

KILLER

DET

ACC

DET

CHROMA

APC DET

3536

17 15 14

12 10

Q602, Q603

REG.

55

5.7Vreg

CONTRAST

41

RGB

MATRIX

DEMODULATOR

VCO

ADJ

VCXO

32

12

X602

3.579545MHz

F502

Q505

POWER REG.

Q606

NC

33

42

RESET

P-ON-ON

BRIGHT

AFC 1

6

POWER_FAIL

REG.

Q604, Q605

REG.

39 46 13

POWER ON

CONTROL

DRIVE AMP

VERTICAL

COUNT DOWN

HORIZONTAL

COUNT DOWN

H VCO AFC 2

AT+12V

UNREG+8V

POWER_FAIL

53

CLAMP

26

RGB

CUT OFF

7

Q611

POWER FAIL

SW.

P. CON+8V

AT+5V

BUS

I/F

HV

BLK

V.RAMP

P. CON+5V

50 10

27

14 15 16

17 29

21

V. OUTPUT IC IC401 AN5522

THERMAL

PROTECTION

AMP

PUMP UP

VCC

1

5

Q402

DRIVER

Q401

SWITCHING

2

3 5

SOUND AMP IC IC351 AN7511

2

5

7

Q405

H-DRIVE

6

8

4

1

R. SIGNAL G. SIGNAL B. SIGNAL

COLOR SIGNAL

TUNER VIDEO SIGNAL AUDIO SIGNAL

DEFLECTION SIGNAL

Q406

H. OUTPUT

FB401

COL +B

E180 ABL AFC HEA

3

HV

F S

1

2

6 7

9

10

E180V

Q806

BLUE AMP

Q804

RED AMP

Q805

GREEN

AMP

Q609

POWER ON

SW.

OPERATION PCB

J351

HEAD JACK

CD352

SP+ SP–

VCR_POWER-H TV_POWER-H TV_A_MUTE

J801

F 8 3 7 9

Q608

CUT OFF

CRT PCB

TV_POWER-H

VD HD

OSD_BLK OSD_B OSD_R

OSD_G

AFT_M

SP351 SPEAKER

MICON/POWER/ OPERATION/DECK

DY

V801

CRT

P. CON+8V

MICON/ POWER/ OPERATION/ DECK

Y/C/AUDIO/CCD/HEAD AMP/IN/OUT BLOCK DIAGRAM

FE HEAD

CP4001

CYL

CP4003

1 2

9 GND

GND

8

GND

7

SP-CH1 (R)

6

SP_COM

5 4

SP-CH2 (L)

EP/LP-CH1 (R)

3

EP/LP_COM

2

EP/LP-CH2 (L)

1

FE HEAD (HOT)

FE HEAD (GND)

Y/C/AUDIO/CCD/HEAD AMP IC IC4001 LA71201M-MPB

66 62

65 72

73

74

67

GND

9

7

8

6

HA

P

R

P P

R

P

REC AMP

AUTO BIAS

L

H

X4001

3.579545MHz

50 49

VX01

H

L

AMP

EQ

Q4012

BUFFER

PB.EE

41

PLL

C-LPF

Q4010

BUFFER

REC APC

38

VSS

REC APC

43 37

3.58M BPF2

RP

Main CONV

CLAMP AUTO-BIAS

CCD

B-UP AMP

AGC

VCA

ACC DET

3.58M BPF1

NYR/COMB

R

LINE AMP

MUTE

LPF

ALC

P

VIDEO AGC

1 2 3

QV-QH

2

1

UOT

3

SERAIL DECODER

SYNC SEP

MUTE HA SW

60B

SYNC SEP

C-ROT

RF-SW IN

AUDIO

ENV DET

53 54

55

36 39 57 58 59

24 26 25

AUDIO SIGNAL(REC) AUDIO SIGNAL (PB) PLAYBACK COLOR SIGNAL PLAYBACK LUMINANCE SIGNAL RECORD COLOR SIGNAL

RECORD LUMINANCE SIGNAL TUNER VIDEO SIGNAL

Y/C_CLK

Y/C_DATA

Y/C_CS

H. SW VCR_A_MUTE ENV. DET

V.REC_ST-H

DUMMY_V. SYNC

SD_VIDEO

SD_SYNC

MICON/ POWER/ OPERATION/ DECK

HEAD

AUDIO

CONTROL

CP4002

6

AUDIO PB

5

AUDIO REC

4

CTL+

CTL-

3 2

AE HEAD(-) AE HEAD(+)

1

COIL, BIAS OSC

T4001

5

6

4

Q4001, Q4002

AUDIO PB SW

11

3

2

5

4

10

80

76

32

30

28

NC

Q4005

2

BIAS CTL

SD_VIDEO

TO_VIDEO

TV

TO_AUDIO

3

1

Q4006

BIAS OSC

P. CON + 5V

Q4003

SW

Y/C_AUDIO

FRONT_VIDEO

FRONT_AUDIO

CTL+ CTL-

MICON/ POWER/ OPERATION/ DECK

MICON/POWER/OPERATION/DECK BLOCK DIAGRAM

TV

CAPSTAN DD UNIT

Y/C/AUDIO/ HEAD AMP/ IN/OUT

LOADING MOTOR

BOT SENSER

X-RAY_TEST

VCR_POWER_H

CP1004

3

I LIMIT

4

CTL

6

FG CAP/M F/R

7

DUMMY_V. SYNC

CP1005

12U-OUT

MICRO

MOTOR

3

4

M101

LM

Q101

AT+5.6V

P. CON+5V

EOT SENSOR

V-OUT W-OUT

M-COM

IC1004 LB11880

CLY/LOADING MOTOR DRIVER IC

7

CP101

LDM+ LDMBOT VCC 1

Q1013

13 15

8

4 3 2

P. CON+5V

10

9

AT + 12V

CP1006

LDM+

4

LDM-

3

BOT

2

VCC1

11

D1003

12

SW1001

2 1

14

2

1

2

1

2

18

19

3 4

3

4

3

Q1002

3

4

P. CON+5V

16

172

P. CON+5V

MS_SEN A

Q1009

MS_SEN B

Q1003

SENSER SW

REEL SENS.

Q1005

TIMER SYSCON MICON IC IC1001 OEC7059A

TAB SW

50

1

MSSEN-A

2

MSSEN-B

23

SENS LED

REEL-T

80

41

X-RAY_TEST

27

VCR-POWER

12

CAP-PWM

76

CAP-PWM CAP-FG

87 11

CAP-FWD

3

EOT

13

DUMMY-V.SYNC

DRUM-PWM

77

LDM-FWD

21 20

LDM-RVS

89

DRUM-FG

90

DRUM-PG

4

BOT

RESET-L

POWER_FAIL_L

X-OUT(12MHz)

X-IN(12MHz)

XC-OUT(32KHz)

XC-IN(32MHz)

V-REC-ST-H

CVIN

Y/C_DATA

Y/C_CS

ENV_DET

VCR_A_MUTE

IIC-DATA1

IIC-CLK1

CTL AMP-OUT

FF/REW-L

AFT(MONI) OSD OUT1

V-SYNC

H/C-SYNC

KEY A

TV-POWER

KEY B

REMOCON-IN

REC LED

T-REC LED

34

3

IC1003

OUT

R3111N311A/C

SYSTEM RESET IC

POWER FAIL2

85 39

38 36

35

94CTL66 56 18VIDEO-H. SW 68

49OSD_VSS

X1001 12MHz

X1002

32.768KHz

95CTL+

70Y/C_CLK

69

6

Q1023

X_RAY_SW

81

EEP ROM IC

72

71 97

Q1004

SDA

5

6

SCL

IC1099 S-24C02BDP-LA

FF/REW_SW

73

R

64

G

63 62

B

7 60 59 58 82TV_A_MUTE

OPERATION PCB

9

28

10

14

30

29

Q4204

Q1007

REC LED SW

Q1008

T-REC

LED SW

TV POWER

SW

POWER ON/OFF

OS753

321

REC/OTR T-REC

D793

D791

REC/OTR STOP/EJECT PLAY

CH DOWN

D792

OPERATION PCB

J701

AUDIO L

4

3

1

2

VIDEO

CH UP VOL. UP VOL. DOWN

AT+5V

POWER/PLAY

R. SIGNAL G. SIGNAL

B. SIGNAL TUNER VIDEO SIGNAL DEFLECTION SIGNAL CAPSTAN AFC SIGNAL

FRONT_VIDEO

FRONT_AUDIO

CTL+ CTLV. REC_ST_H SD_VIDEO

H. SW

Y/C_DATA

CLK

Y/C_

SD_SYNS

Y/C_CS

ENV_DET

VCR_A_MUTE

X_RAY SDA

SCL

OSD_R OSD_G OSD_B AFT_M OSD_BLK

VD HD TV_A_MUTE

TV_POWER_H

FF/CUE REW/REV

INPUT SELECT

Y/C/AUDIO/CCD HEAD AMP/ IN/OUT

TV

CYLINDER AFC SIGNAL CYLINDER APC SIGNAL

AUDIO SIGNAL(REC)