Yamaha RX-V675 Service Manual page 140

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Contents
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Table of Contents

RX-V675/HTR-6066/RX-A730/TSR-6750

OPERATION 3/3

OPERATION (8)

O P E ( 8 )

E X _ S P

F G

3 9 1 - 3 9 5

3 9 0 1 - 3 9 5 0

FRONT PRESENCE L

X H I

E X _ L E

E X _ R E

Page 141

E X _ L

to MAIN (1)_W105

E X _ R

C B 3 9 1

T E 3 9 1

N O T I C E

( m o d e l )

J A P A N

U . S . A

C A N A D A

G E N E R A L

C H I N A

K O R E A

A U S T R A L I A

B R I T I S H

E U R O P E

S I N G A P O R E

S O U T H E U R O P E

T A I W A N

R U S S I A N

L A T I N A M E R I C A

B R A Z I L

T H A I

R E S I S T O R

R E M A R K S

P A R T S

N A M E

N O M A R K

C A R B O N

F I L M R E S I S T O R

( P = 5 )

C A R B O N

F I L M R E S I S T O R

( P = 1 0 )

M E T A L

O X I D E F I L M R E S I S T O R

M E T A L

F I L M

R E S I S T O R

M E T A L

P L A T E R E S I S T O R

F I R E

P R O O F C A R B O N

F I L M R E S I S T O R

C E M E N T

M O L D E D R E S I S T O R

S E M I

V A R I A B L E

R E S I S T O R

C H I P R E S I S T O R

C A P A C I T O R

R E M A R K S

P A R T S

N A M E

N O

M A R K

E L E C T R O L Y T I C

C A P A C I T O R

T A N T A L U M

C A P A C I T O R

N O

M A R K

C E R A M I C

C A P A C I T O R

C E R A M I C

T U B U L A R

C A P A C I T O R

P O L Y E S T E R F I L M

C A P A C I T O R

P O L Y S T Y R E N E

F I L M

C A P A C I T O R

M I C A

C A P A C I T O R

P O L Y P R O P Y L E N E

F I L M

C A P A C I T O R

S E M I C O N D U C T I V E C E R A M I C C A P A C I T O R

AC IN

T E 3 7 1

R - 3 0 1 9 0 ( 2 6 ) 3 C

S T 3 7 1

C 3 7 0 2

1 0 0 0 P / 2 5 0

C 3 7 0 3

C 3 7 0 7

1 0 0 0 P / 2 5 0

0 . 0 1 / 2 5 0

C B 3 7 2

C B 3 7 3

R Y 3 7 1

s 3 0 4

D L S 5 D 1 - O ( M ) 0 . 2 5

F 3 7 0 2

R 3 7 0 3

1 / 2 P 3 M

D B L 1 5 5 G

C 3 7 0 4

F I 3 7 1

N T P A D 5 R 1 L D N B 0

0 . 2 2 / 2 5 0

T H 3 7 1

s 3 0 8

D 3 7 0 1

5 k-ohms

10 W

H S 3 7 2

I C 3 7 5

S T R - Y 6 7 5 3

W D 9 6 0 8 0

R 3 7 4 0

1 0 0 0 P / 6 3 0

3 3 0

R 3 7 4 1

C 3 7 2 4

3 3 0

U S 1 0 0 2 F L

D 3 7 0 2

Primary side ground

D 3 7 1 2

1 S S 3 5 5 V M

C 3 7 1 2

s 3 0 6

D 3 7 1 3

1 S S 3 5 5 V M

140

RX-A730

J K 3 8 1

TRIGGER OUT

M S J - 0 3 5 - 1 2 A P C

C O N T R O L O U T

+ 1 2 V

M A X 1 0 0 m A

B L C A K

E X T R A S P

ZONE2/

SPEAKERS

R E D

s 3 3 1

F.PRESENCE

B L A C K

L/R

R E D

J K 3 8 2

I N

REMOTE

M S J - 0 3 5 - 1 2 A P C

J K 3 8 3

OUT

O U T

M S J - 0 3 5 - 1 2 A P C

R E M O T E I / O

M A I N

A V - 4

AV4

OPTICAL

G P 1 F A V 5 1 R K 0 F

Power

transformer

P J 3 8 1

A V - 3

T R A N S F O R M E R

AV3

COAXIAL

S H I E L D E D

1 5

C O V E R

A V - 2

AV2

M S P - 2 5 2 V 1 - 3 0 N I

A V - 1

AV 1

OPTICAL

G P 1 F A V 5 1 R K 0 F

to POWER TRANSFORMER

C 3 7 1 1

s 3 0 1

H S 3 7 1

V 2 3 3 0 7 0

T 3 7 0 1

L 3 7 0 1

R 3 7 3 7

R 3 7 3 8

R 3 7 3 9

C 3 7 2 2

1 1

1 . 5 U H

1 P 1 5

1 0

4 7 0 P / 1 0 0 0

S T - 5 2 0 9 B - 2

Sub-

transformer

AC_DC Switching frequency: 30–75kHz

I C 3 7 2

2 7

R 3 7 1 2

C 3 7 1 6

R 3 7 0 8

2 2 K

0 . 0 4 7 / 1 6

T L P 7 8 1 ( D 4 - G R )

R 3 7 2 8

1 K

D 3 7 1 5

I C 3 7 4

1 S S 3 5 5 V M

D 3 7 1 4

1 S S 3 5 5 V M

T L P 7 8 1 ( D 4 - G R )

Page 141

to MAIN (1)_W110

P N 3 8 1

n o _ u s e

R 3 8 1 6

5 . 6

Q 3 8 0 1

R 3 8 1 5

1 0 K

Q 3 8 0 3

D 3 8 0 3

1 S S 3 5 5 V M

D 3 8 0 4

n o _ u s e

D G N D

R M +

R M -

+ 5 D S P

D G N D

DIGITAL IN

R 3 8 0 5

A V 4 _ D

C 3 8 0 3

1 0 0

L 3 8 0 3

0 . 1 / 1 6

L 3 8 0 1

n o _ u s e

+ 5 A L

B L M 2 1 P G 6 0 0 S N 1 D

+ 5 A

R 3 8 2 0

1 P 2 . 2

R P 1 7 0 H 3 3 1 B - T 1 - F

J 3 8 0 3

V D D

R 3 8 1 1

n o _ u s e

4 . 7 K

1 4

I C 3 8 1

C 3 8 0 9

N C

A V - 2

R 3 8 0 7

1 3

1 2

1 1

1 0

R 3 8 1 7

A V 3 _ D

6 8 0

1 0 0

0 . 1 / 1 6

T C 7 4 V H C U 0 4 F T ( E L

I C 3 8 1

R 3 8 1 3

1 8 K

R 3 8 1 4

1 8 K

I C 3 8 1

C 3 8 1 0

R 3 8 0 8

R 3 8 1 8

A V 2 _ D

A V - 3

0 . 1 / 1 6

6 8 0

1 0 0

T C 7 4 V H C U 0 4 F T ( E L

R 3 8 1 2

4 . 7 K

R 3 8 0 6

A V 1 _ D

C 3 8 0 6

1 0 0

0 . 1 / 1 6

L 3 8 0 2

B L M 2 1 P G 6 0 0 S N 1 D

D G N D

OPERATION (3)

O P E ( 3 )

A C _ D C

3 7 1

3 8 0

3 7 0 1

3 8 0 0

Q 3 7 0 3

R 3 7 2 3

D 3 7 1 0

C 3 7 2 1

1 0 0

2 . 2 / 5 0

1 S S 3 5 5 V M

C 3 7 2 3

D T C 0 4 4 E U B T L

0 . 0 1 ( B )

Q 3 7 0 1

2 S C 4 0 8 1

F G

A C _ P W R

D G N D

G N D

2 S C 4 0 8 1

R 3 7 2 2

2 . 2 K

P R Y _ I N

R 3 7 1 7

Q 3 7 0 2

1 0

5 . 6 V

Page 134

to DIGITAL (1)_CB945

t o D I G I T A L

5 3 2 9 0 - 1 5 8 0

OPERATION (4)

+ 5 A E

+ 3 . 3 A

D G N D

+ 5 D S P

+ 5 A L

O P E ( 4 )

C O N N E C T

3 8 1 - 3 9 0

3 8 0 1 - 3 9 0 0

S C E N E R e m o t e O u t

+ 1 2 V

D C _ T R G

n o u s e

Q 3 8 0 9

D 3 8 0 9

Q 3 8 1 0

R M S _ O U T

D G N D

C B 3 8 3

T U L

T U E

T U R

5.0

+ 5 A

+ 1 2 V

+ 5 A E

2.6

D C D C _ P O N

R 3 8 2 1

1.5

P S 2 _ P R T

3 3 K

t o O P E ( 2 )

N C

-12.3

- 1 2 V

Page 139

M I C

+ 3 . 3 A

12.0

+ 1 2 V

to OPERATION (2)_CB345

3.3

A U X L

V O U T

G N D

A U X R

C E

5 3 2 9 0 - 1 5 8 0

+ 5 A E

J 3 8 0 1

J 3 8 0 2

t o M A I N

Page 142

to MAIN (1)_CB153

Safety measures

• Some internal parts in this product contain high voltages and are dangerous. Be sure to take safety measures during servicing, such as wearing insulating gloves.

• Note that the capacitors indicated below are dangerous even after the power is turned off because an electric charge remains and a high voltage continues to exist there.

Before starting any repair work, connect a discharging resistor (5 k-ohms/10 W) to the terminals of each capacitor indicated below to discharge electricity.

The time required for discharging is about 30 seconds per each.

C3706 on OPERATION (3) P.C.B.

P N 3 7 1

D e s t i n a t i o n P a r t L i s t

+ - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - +

W 3 7 0 4

s X X

L O C

3.3

+ 3 . 3 M

s 3 0 1

C 3 7 1 1

W Y 6 8 5 5 0

D G N D

3 3 0 0 P / 2 5 0

3.3

A C P W R _ D E T

Page 134

s 3 0 4

F 3 7 0 2

W Q 2 1 1 1 0

3.3

C P U _ N _ R S T

8 A 1 2 5 V

to DIGITAL (1)_CB944

2.6

P R Y

s 3 0 6

C 3 7 0 1

W J 3 6 1 2 0

C 3 7 1 2

0 . 0 4 7 / 4 0 0

0.4 (U model)

D E S T

s 3 0 8

F I 3 7 1

W M 4 8 2 5 0

6 P 2 0 0 M M B & C

2 2 M H

s 3 1 5

C 3 7 0 6

Z E 6 0 0 1 0

2 7 0 / 2 2 0

s 3 2 1

R 3 7 2 6

R D 3 5 6 1 2

1 . 2 K

s 3 3 1

T E 3 9 1

W W 7 2 8 9 0

W 3 7 0 3

5.6

5 . 6 V

Page 134

5 . 6 V

G N D

to DIGITAL (1)_CB942

G N D

S C N - X H

W 3 7 0 7

Page 141

5.6

5 . 6 V

G N D

to MAIN (1)_CB102

S C N - X H

IC373: TL431ACLPR

Adjustable precision shunt regulators

CATHODE

REF

Vref

ANODE

IC375: STR-Y6753

Switching regulator

Vcc

Startup

D/ST

UVLO

DRV

Reg/Iconst

OCP/BS

S/OCP

Logic

Latch

FB/STB

FB/OLP

OLP

OSC

GND

IC381: TC74VHCU04FT

Hex inverters

VCC

GND

IC382: RP170H331B-T1-FE

Voltage regulator

OUT

Vref

Current Limit

Thermal Shutdown

GND

Pin No.

Symbol

Description

VOUT

Output Pin

GND

Ground Pin

Chip Enable Pin

No Connection

VDD

Input Pin

B G

W Y 6 8 5 5 0

W Q 9 0 2 2 0

3 3 0 0 P / 2 5 0

2 2 0 0 P / 2 5 0

W Q 2 1 1 1 0

V V 0 7 1 8 0

8 A 1 2 5 V

T 4 A L 2 5 0 V

W J 3 6 1 2 0

W J 3 6 1 8 0

0 . 0 4 7 / 4 0 0

0 . 0 2 2 / 6 3 0

W M 4 8 2 5 0

W F 7 1 0 7 0

2 2 M H

E L F 2 0 N 0 0 8 A M

Z E 6 0 0 1 0

W W 7 5 1 7 0

2 7 0 / 2 2 0

1 0 0 / 4 0 0

R D 3 5 6 2 7

R D 3 5 7 1 5

R D 3 5 7 4 7

R D 3 5 8 1 0

2 . 7 K

1 5 K

4 7 K

1 0 0 K

W W 7 2 8 9 0

W W 7 2 6 5 0

★ All voltages are measured with a 10MΩ/V DC electronic voltmeter.

★ Components having special characteristics are marked

and must be replaced

with parts having specifications equal to those originally installed.

★ Schematic diagram is subject to change without notice.

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Yamaha RX-V675 Service Manual page 140

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