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Schematic diagram, Y/c/audio/head amp, Y/c/audio/head amp schematic diagram – Toshiba Color Television/ Video cassette recorder MV13K3CR User Manual

Page 38: Syscon pcb)

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A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

2

1

3

4

5

6

7

8

2

1

3

4

5

6

7

8

OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE

NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME

X4001_1

3.579545MHz

L4007

100uH

C4001

47

6.3V

KA

C4010

47

6.3V

KA

C4004

47

6.3V

KA

C4011

1

50V

KA

C4017

1

50V

KA

C4016

4.7

25V

KA

C4034

1

50V

KA

C4043

1

50V

KA

C4024

4.7

25V

KA

C4058

22

6.3V

KA

C4029

0.068

B

C4079

0.1

B

C4049

200P

CH

C4047

18P CH

C4003

0.1

F

C4078

0.1

B

C4027_1

0.001

B

C4074

470P

CH

C4015

0.022

100V

TF

C4052

0.01 B

C4044

0.1

F

C4038

0.1

F

C4006

0.015

B

C4002

0.01 B

C4050

220P

CH

C4055

0.1

F

C4025

0.0022

B

C4005

0.01

B

C4009 0.1 F

C4018

0.0027

B

C4020

0.01 B

C4053 0.01 B

C4073

47P CH

C4072

0.1

B

C4041

390P

CH

C4066

1F

C4065

1F

C4032

0.022

B

C4054

0.047 B

C4077

0.1

B

C4082

0.047 B

C4075

330P B

C4028

0.22

B

C4036

0.022

B

C4076

0.1

B

C4048

0.01

B

C4085

0.1

B

C4086

0.0022

B

R4011

22K

R4052

68 1/4W

R4058

10K

1/4W

R4070

10M

R4041

10K

R4013

12K

R4009 2.7K

R4024

10K

R4045

680K

R4049

1.2K

R4048

4.7K

R4002

10K

R4003

10K

R4008

12K

R4015

2.2

1/4W

R4067

47K

R4060

220K

R4062

220K

R4026

47K

R4068

47K

R4019

5.6K

R4010

3.3K

R4020

10K

R4027

150

R4001 820

R4047

10K

R4023

6.8K

R4025

270K

R4022

6.8K

R4032

33K

R4034

820

R4063

3.3M

R4065

2.2K

R4036

47K

R4051

27K

R4056

1M

R4031

39K

R4055

12K

R4078

100

R4033

1K

R4064

680K

R4029

2.2M

R4028

6.8K

R4044

8.2K

R4014

1.8K

R4046

680

R4012

18K

R4072

12K

R4007

330

R4016

100

R4006

330K

R4050

680K

R4057

2.2K

R4039

47K

R4074

1.5K 1/2W

R4053

18K

R4066

3.3K

R4071

2.7K

C4007

1

50V KA

C4030

10

16V

KA

C4070

47

6.3V

KA

C4057

47

16V

KA

C4062

1

50V KA

C4035

100

6.3V

KA

C4059

4.7

25V

KA

C4061

1

50V KA

C4022

10
16V

KA

C4026

100

6.3V

KA

C4008

100

6.3V

KA

C4021

33

6.3V

KA

C4023

22

6.3V

KA

C4031

2.2

50V

KA

C4033

2.2

50V

KA

C4039

1

50V

KA

C4037

1

50V

KA

C4045

47

6.3V

KA

C4071

1

50V KA

C4060

4.7

50V

KA

Q4001

2SC3331

AUDIO
PB SW

Q4002

2SC3331

AUDIO
PB SW

Q4008

2SC2412K

EP SW.

Q4006

2SD734

BIAS OSC

Q4010

2SC2412K

EP SW

Q4012

2SC2412K

SYNC IN

W836

W896

W821

W895

W864

W826

W815

W923

W922

W837

W849

Q4007

2SA1037AK

BUFFER

Q4009

2SA1037K

BUFFER

Q4005

2SA1318

BIAS CTL

L4009

100uH

0305

L4008

100uH 0305

L4002

100uH

0305

L4010

100uH

0305

L4003

100uH

L4001

100uH 0305

L4005

47uH

0305

S108Y

S104Y

S103Y

S103X

S108X

TUNER VIDEO SIGNAL

D4005

MTZJ6.8B

D4006

MTZJ6.8B

RECORD COLOR SIGNAL

T4001

1626007

COIL,BIAS OSC

1

2

3

4

5

6

CP4003

TMC-T02X-E1

1

2

Q4003

DTA124ES

SW

CP4002

IMSA-9604S-06Z14

1

2

3

4

5

6

IC4001

LA71067SM-MPB

Y/C/AUDIO/CCD/HEAD AMP IC

1

10

100

11

12

13

14

15

16

17

18

19

2

20

21

22

23

24

25

26

27

28

29

3

30

31

32

33

34

35

36

37

38

39

4

40

41

42

43

44

45

46

47

48

49

5

50

51

52

53

54

55

56

57

58

59

6

60

61

62

63

64

65

66

67

68

69

7

70

71

72

73

74

75

76

77

78

79

8

80

81

82

83

84

85

86

87

88

89

9

90

91

92

93

94

95

96

97

98

99

L4004 2623003

15.6KHZ TRAP

1

2

3

4

6

TP4001

CP4001_1

TOC-C04X-B1

1

2

3

4

DURING PLAYBACK

MEASURED WITH THE DIGITAL TESTER

NOTE:

THE DC VOLTAGE AT EACH PART WAS

CAUTION: DIGITAL TRANSISTOR

PLAYBACK LUMINANCE SIGNAL
PLAYBACK VIDEO SIGNAL

AUDIO SIGNAL(REC)
AUDIO SIGNAL(PB)

RECORD LUMINANCE SIGNAL

TU_AUDIO

P.CON+5V

INPUT_SEL

SP/LP/EP-H

FRONT_AUDIO

P.CON+5V

GND

FRONT_AUDIO

FRONT_VIDEO

Y/C_AUDIO

Y/C_VIDEO

SP/LP/EP-H

TRICK_PB-H/EE-H

P.CON+5V

V.REC_ST_H

C_ROTARY

VCR_A_MUTE

TU_VIDEO

REC/EE/PB

DUMMY_V.SYNC

CTL-

CTL+

DOC_XO_CTL

ENV_DET

FRONT_VIDEO

INPUT_SEL

COMP

ENV_DET

COMP

H.SW

SD_VIDEO

SD_SYNC

Y/C_AUDIO

H.SYNC

DUMMY_V.SYNC

P.CON+5V

P.CON+5V

Y/C_VIDEO

SD_VIDEO

TU_VIDEO

CTL+

TU_AUDIO

V.REC_ST_H

CTL-

SD_VIDEO

Y/C_AUDIO

H.SYNC

TRICK_PB-H/EE-H

V.REC_ST_H

VCR_A_MUTE

DOC_XO_CTL

SP/LP/EP-H

REC/EE/PB

C_ROTARY

P.CON+5V

SD_SYNC

H.SW

FROM/TO DEFLECTION

FROM/TO TV POWER

(SYSCON PCB)

FROM/TO CHROMA/IF

PCB800
VMX196

Y/C/AUDIO/HEAD AMP SCHEMATIC DIAGRAM

NC

NC

NC

3

FROM/TO MICON

FROM/TO CYL/MOTOR

AUDIO PB

AE HEAD(+)

CTL-

CTL+

AUDIO REC

AE HEAD(-)

0

0

0.7

0.7

0

0

2.5

2.4

5.1

0

0.3

2.8

4.6

0

1.0

0

1.8

1.8

1.8

1.8

5.1

0

1.8

1.8

1.8

1.8

0

2.4 2.4 2.4

0 2.4 5.0 2.3 2.3 2.8 2.3 1.5 2.0

0

0 1.4 4.0 2.3 2.2 3.0 4.1 3.4 4.9 3.4 5.0 5.0

5.0 4.2 2.3 0.1

0

2.2

0

2.7

2.5

3.0

3.2

2.8

2.8

4.9

2.8

3.5

2.5

1.5

1.0

3.0

4.4

0

4.6

4.8

1.0

2.1

0

2.8

3.4

2.0

0.2

1.0

5.0

1.6

0

4.9

0

0

0.8

0.8

0.8

0

0

5.0

NC

5.0

1.5

2.4

2.4

0

2.4

2.4

2.4

2.4

VIDEO OUT

AFC

DET

SYNC

AUTO-BIAS

VSS

VSS

R

P

TIMMING

ACC

AMP

PB

H.A

CH3

OUT

REC SP

OUT

REC EP

ALC-LEVEL

PB-Y

R

P

NC1

DEEN

N.L.

MIX

Y/C

PB-C

1

3

2

R

P

P

R

AFTER

BEFORE

R

P

R

P

KIL

R

P

NOMAL

HA TEST

P

R

R

P

R

P

TEST

R

P

R

NOMAL

VHS

SQPB

SW

SW

H.AMP

H.AMP

L

H

CH1

CH2

CH4

L

H

L

H

H.A GND

Y-Vcc

Y-GND

4Fsc

IN

OUT

C.SYNC

BGA

BGA

TEST

R-EQ

PHASE-EQ

PB

CLOCK

PULL

OUT

CCD

DRIVER

FM-EQ

S-EQ

AFC

REC

APC

PB

APC

REC

BPF1

3.58M

BPF2

3.58M

CONV

V/I

DEM

FM

SUB
LPF

ENH

DETAIL

EMPHA

NL

LIM

DOUBLE

Y-LPF

YNR/COMB

INS.

Chara

6DB

SEP

SYNC

1/2

FBC

TC2

AGC

V-AGC

CLAMP

VCP

CLAMP

VCA

CLAMP

VDD

C-VCC

5V

ALWAYS

SLD

VCO

320FH

VX01

C-LPF

BGA DET

ACC

AMP

B-UP

C-GND

REG

DET

KIL

KIL

KIL

B.D.

GCA

AMP

CONV

Main

BPF

4.21M

BALANCER

CONV

Sub

MOD

FM

REC

FM-EQ

DC

WC

FM

AGC

DELAY

FM-EQ

PB

+

AMP

AGC

IN

IN

AMP

CTL

R

HA SW

C ROT

RF SW

MUTE

AUDIO

R/P

R/P

AUDIO

R/P

Y/C

FILT

REC AGC

COMP OUT

ENV DET

H.A VCC

H.A GND

AMP

LINE

BIAS

AUTO

MUTE

A.GND

P

A-Vcc

2.3V

Vref

ALC

/EE

PB

Vref

AMP

REC:
EP/LP
PB:EP

REC

PB/EE

AMP

EQ

0

SP-CH1 (R)

SP COM

SP-CH2 (L)

5.3

5.2

0

NC

NC

4.3

NC

NC

NC

NC

0.4

3.4

4.2

5.0

4.8

2.6

2.0

0

FE HEAD(GND)

FE HEAD(HOT)

TO F/E HEAD

1

2

4

FROM/TO I/O

2.2

2.6

0

FROM/TO A/C HEAD

0

0

0

5.2

5.2

0.5

2.8

0

0.7