AIWA HV-FX970 LE Service Manual

HV-FX970

LE

HV-GX910

LE

SERVICE MANUAL

VIDEO CASSETTE RECORDER

Replace this Service Manual with "Revision Publishing" when it is issued.

BASIC TAPE MECHANISM : D-33

S/M Code No. 09-996-332-6T1

SIMPLE

DATA

SCHEMATIC DIAGRAM-1

PMK01

GND

OTPB "H"

5.3VA
GND

K.RTN 1

To A
MAIN C.B
SYSCON/SERVO

()

SECTION
PMK01

C KEY 1 C.B

1
2
3
4
5

R5A9

120

LD5A1

Q5A1

KRC103M

R

R5A6

1.8K

SW5A7

CH UP

R5A7

1.5K

SW5A8

CH DOWN

R5A8

2.2K

SW5A9 SW5A0

ONE-TOUCH

PLAYBACK

OPTB

PKM02

D KEY 2 C.B

1
2
3
4
5
6

GND

K.RTN 0

8
9

10

To A
MAIN C.B
SYSCON/SERVO

()

SECTION
PMK02

7

R5A1

SW5A1

REC/ITR REW/

1.8K

R5A2

1.5K

SW5A2

R5A3

2.2K

SW5A3

PLAY

R5A4

2.7K

/F FWD

R5A5

3.9K

SW5A5SW5A4

STOP

SW5A6
PAUSE/

STILL

2

SCHEMATIC DIAGRAM-2

A MAIN(POWER SECTION)C.B

FH02

FH01

PW101

L102

33m

C101

V101

F101

T1.6A/250V

POWER CORD

BD101

S1WBA60

BC101

BEAD CORE

C102

0.1

0.1

R101

2.7 2W

R102

100K 2W

5

Slort

VCC

Reg1(9.4V)
Reg2(7.2V)
Reg3(7.2V)

TSD

IC101

G-6153

OVP

Counter

C103

68/400

C122

0.022

OSC

FB OCP

Mirror

FB Curent

Detector

FB

4

HOT CIRCUIT

Latch

S
RQ

D102

ERA22-10

EG01CW

Drive

Buffer

Amp.

R104

56K

2W

DROIN

OCP

GND

1

BC103

T/W

2

3

R109

0.35 2W

C105

0.01/630

C106

100P/1K

BC102

BEAD

R103

8.2

C109

33

IC102

PC123Y

C111

0.022

T101

SHT-023H

4

D104

EU01W

2

1

41

IC103

KA431AZ

C112

3300P

C113
220P

96

10

11

8

7

12

13

15

23

D109

RU4YXLF

D108

EU01W

F103

ICP-N10

D106

ERC81-004L

D105

EU01W

R117

2.2K

470/25

4.7 1/4W

D107

ERA18

C115
47/50

R116

330

R118

L104

C120

FR02

1K

22u

C118

220/10

C116

1000/16

L103

22u

C114

0.047

ZD151

MTZ13A

C121

470

C119

47/50

R121

R151

1.2K

R114
100K

C117

470/16

R119

3.3K
1%

R120

2.7K
1%

180

Q151

KTC3203

4.7/50

C157

1/50

C151

Q156

KTC3203

KTA1268 or KSA709C

R154

1K

R161

270

R158

270

R164

12K

Q158

Q153

KTC2804

ZD153

MTZ13A

Q154

KTC3198

R166

2.2K

R155

27K

R162

330

KTA1273

KTA1273

R159

330

Q162

Q159

C152

4.7/50

R171

3.9K

R165

12K

R167

2.2K

D151

1SS133

C159
10/16

R153

KRA103M

KRC101M

D152

1N4003L

C153

4.7/50

Q155

R

Q157

KRA103M

R169

R

Q160

C123

47

L105
100u

R

1K

R152

1.2K

R156

10K

D154

1N4003L

ZD152

MTZ10A

ZD104

MTZ5.6B

Q164

KSA1273

Q161

KTC3199

Q152

KTC3203

R

R170

1K

R157

1K

D155

1N4003L

Q165

KRC101M

D153

T/W

C156

1/50

C155

0.1

C124

R172

12K

22

1B

2B
3B

4B
5B

6B

To
TUNER/IF
SECTION

1A
2A
3A

To
SCART
SECTION

1A 3A

1C

12.3V(CAP)
12V(DRUM)

2C
3C

4C

-21VG(F-)

5C

-15VG(F+)

6C

STAND-BY "H"

7C

8C

TIMER "H"

9C

10C

11C

PWR CTL "H"

12C
13C

5.3VA

9V

5VT

33VT

5V

GND

1B 6B

12VA

GND

-27VG

5VG

5VT

5V

5.3VA
GND

To
SYSCON/
SERVO
SECTION

1C 13C

1D

5VT

2D

5V

GND

3D

To
AUDIO/
VIDEO
SECTION

1D 3D

43