Schematic Diagrams - Yamaha NS-SW300 Service Manual

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Owner's manual (164 pages)

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Table Of Contents

Table of Contents

SCHEMATIC DIAGRAMS

NS-SW300

MAIN 1/2

MAIN (3)

M A I N ( 3 )

I N P U T 1

T E 1

R 2 3

s 1

FROM

1 0 0 K

C 1 3 9

AMPLIFIER

n o _ u s e

R 2 1

OUTPUT/

L/R

1 0 0 K

R 2 4

INPUT1

1 0 0 K

SPEAKERS

R 2 2

1 0 0 K

I N P U T 2

P J 1

R J - 1 0 6 0 - 0 1 - Z 5 0 0

C 4

R 1 0

L/MONO

1 2 K

1 0 / 5 0

INPUT2/

NORMAL

L O W C U T

C 7

R 1 1

0 . 2 2

1 2 K

C 3

2 2 0 P ( S L )

R 2 0

3 3 K

P J 2

L F E

N J M 4 5 8 0 E ( T E 2 )

INPUT3/

C 1

R 6

LFE

1 2 K

1 0 / 5 0

I C 9

V +

11.9

M S P - 2 4 1 V 1 - 1 0 - G I

J 1 0

C 1 2 9

0 . 1 / 5 0 ( F )

n o _ u s e

R 9

4.2

1 0

J K 1

D C I N

4.2

SYSTEM

P U P

CONNECTOR

A S E

L G Y 6 5 0 1 - 0 6 0 0

AUTO STANDBY

CIRCUIT

R 3 0 1 0 0

AUTO

STANDBY

S W 2

O F F

A U T O S T A N D B Y

OFF LOW HIGH

The voltages are measured

with AUTO STANDBY OFF.

電圧はオートスタンバイOFFで測定

( J , U , T , K , A , B , G , L , H ]

U, T, K, A, B, G, L, H, J models

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

MAIN (8)

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

R E S I S T O R

T 2

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 )

MAIN (9)

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

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

★ 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.

● 電圧は、内部抵抗 10MΩの電圧計で測定したものです。

● ⚠印のある部品は、安全性確保部品を示しています。部品の交換が必要な場合、

パーツリストに記載されている部品を使用してください。

● 本回路図は標準回路図です。改良のため予告なく変更することがあります。

L E D _ R

L E D _ G

C 1 2

HIGH CUT

C 1 9

C 2 0

S W

L.P.F

40 to 140Hz

2 2 0 P ( S L )

0 . 0 3 3 / 1 0 0

1 0 / 5 0

R 3 3

C 2 3

R 4 4

R 4 8

3 . 3 K

+ 1 2 D

N J M 4 5 8 0 E ( T E 2 )

3 9 K

H I G H C U T

8 . 2 K

1 0 / 5 0

N J M 4 5 8 0 E ( T E 2 )

11.9

- 1 2 D

V R 1

R 4 1

I C 9

C 2 4

R 2 7

R 3 9

1 0 K

V +

I C 6

R 4 9

V -

3 . 3 K

1 0 / 5 0

I C 6

0 . 1 / 5 0 ( F )

V -

-12.2

1 0 K

C 2 1

C 1 3

-12.2

1 0 K S X 2

C 1 3 0

1 0 / 5 0

0 . 8 2

N J M 4 5 8 0 E ( T E 2 )

R 2 1 5

M A I N ( 6 )

PHASE

H.P.F

P H A S E S W

REV

R 6 4

S W 1

R E V

C 2 5

W 3

C B 3

N J M 4 5 8 0 E ( T E 2 )

1 0 K

J 3

1 0 / 5 0

C 1 0

NORM

R 5 5

C 3 2

R 7 0

C 1 7

N O M

1 0 K

L 2

I C 8

0 . 2 2

I C 8

1 0 0

1 0 / 5 0

S G N D

n o _ u s e

1 0 / 5 0

R E V

C 2 6

R 5 6

V -

1 0 K

N J M 4 5 8 0 E ( T E 2 )

B A S W

11.9

B A S W

R 7 2

V +

1 0 / 5 0

-12.2

R 4 0

R 5

+ 1 2

3 3 K

N O M

11.9

2 2 K

+ 1 2

C 1 3 2

- 1 2 D

C 1 3 1

+ 1 2 D

1 . 0

R 7

- 1 2

-12.2

- 1 2

S S S F 1 2 1 9 0 0

- 1 2

0 . 1 / 5 0 ( F )

1 . 0

A S E

0 . 1 / 5 0 ( F )

+ 1 2

+ 5 V

5.0

+ 5 V

S W 3

R 2 1 7

A C R Y O N

3.7

A C R Y O N

M U S I C

1 0 0

MUSIC

P H I

M O V I E

CONTROL

B.A.S.S.

MOVIE

D 5

R 6 8

R 5 7

5.0

1 K

1 0 0 K

1 S S 3 5 5 V M

B . A . S . S

4.3

R 6 9

C 2 7 1 2 - Y ( T E 8 5 R , F

1 0 K

S S S F 1 2 1 9 0 0

R 5 8

0.7

Q 4

5.0

1 0 K

Q 2

+ 1 2

11.9

Q 4 8

TIMER

11.9

V C C + 5 V

A 1 3 1 2 - G R , B L ( T E 8

11.9

Q 4 6

-0.5

R 6 5

6.2

R 1 3

0.6

1 M

4 7 K

-0.5

N J M 5 5 5 M

C 2 2

1 0 / 5 0

C 2 7

-17.0

0 . 1 / 1 6

C 1 8

-16.4

1 0 0 0 P ( B )

5.0

R 4 3

A 1 3 1 2 - G R , B L ( T E 8

R 5 3

R 5 9

V +

5 6 K

3 9 0 K

1 0 K

3.7

R 4 7

1.7

N J M 2 9 0 4 M

I C 5

Q 3

6 . 8 K

C 2 9

2.8

3.6

R 6 2

N J M 2 9 0 4 M

I C 5

1 0 K

1 / 5 0

2.8

O P E A M P

V -

PROTECTION

MUSIC SENSOR

V C C + 5 V

5.0

D 3

D 4

R 5 0

4.4

4.0

3.7

O U T

5.0

4 7 K

R 3 2

1 S S 3 5 5 V M

L E D R

0.1

Q 1

2 . 7 K

L E D _ R

A 1 3 1 2 - G R , B L ( T E 8

P D E T

R 4 5

L E D G

1.9

5 6 0

L E D _ G

( R , S )

-17.0

16.8

R, S models

MAIN (8)

W 8 A 1

-17.8

B E

T 2

B L

W 8 A 2

MAIN (10)

W 8 A 3

B E

G 5

s 9

MAIN (11)

1 1 0 - 1 2 0 V

M A I N ( 2 )

2 2 0 - 2 4 0 V

C B 7

C B 8

C B 1 1

C B 1 2

F 2

W 1 1 A

W H

F 1

s 1 7

s 1 8

s 1 7

W 1 1 A

s 3

VOLTAGE

s 3 3

SELECTOR

B E

W 1 2 A

s 3 4

MAIN (5)

M A I N ( 5 )

G Y

W 9 A

W 9 B

W 9 A

POWER

S W 5

O R

W 1 0 A

W 1 0 B

W 1 0 A

P S 4 E - A - 0 4 0 - N P

T E 3

I P S - 5 0 0 7

C 3 6

T E 2

I P S - 5 0 0 7

OFF

1 5 0 0 P / 2 5 0

T E 2

AC IN

IC1: NJM555M

Timer

Control Voltage

V+

Threshold

Output

Trigger

Reset

Discharge

GND

STATUS indicator

MAIN (4)

1 2 5 9 - 7 S D R G V W / S 5

D 1

S G N D

(Standby/On)

R E D

MAIN (1)

W 1

C B 1

S T A N D B Y / O N

L E D R

M A I N ( 4 )

1.9

G R

S P P H 1 3 0 4 0 0

L E D G

1.9

L E D G

M A I N ( 1 )

A S E

S W 6

S W

5.0

S W

C 1 3 6

+ 5 V

5.0

+ 5 V

+ 1 2 D

11.9

+ 1 2 D

2 . 2

G N D 1

- 1 2 D

-12.2

- 1 2 D

R 2 0 6

R 2 0 4

1 0 0

S I G

R 2 0 8

V R 2

4 . 7 K

1 0 0

C 1 4 0

+ 1 2

S G N D

D U M M Y

V +

V O L

1 0 0 P ( S L )

- 1 2

V -

I C 7

C 3 1

P H L

I C 7

4 7 / 1 6

N J M 4 5 8 0 E ( T E 2 )

D U M M Y

C 8 1

VOLUME

R 2 1 6

1 0 0

s 8

1 0 0

R 2 0 7

0.6

Q 2 5

0.1

+ 1 2

A.N.I.C

C 4 9

-68.0

B . A . S . S

0 . 2 7

N J M 4 5 8 0 E ( T E 2 )

R 8 3

R 8 7

11.9

C 6 7

R 1 0 0

V +

N J M 4 5 8 0 E ( T E 2 )

1 5 K

I C 1 0

1 K

1 0 / 5 0

I C 1 0

11.9

C 5 9

-12.2

-68.0

0 . 1 2

11.9

V -

R 9 3

R 9 8

R 1 1 6

Q 5

1 5 K

1 0 K

1 S S 3 5 5 V M

-12.2

-68.0

12.0

Q 2 6

R 7 8

4 7 K

-12.0

Q 7

R 8 8

-68.5

4 7 K

Q 1 0

J 9

- 1 2

+ 1 2

Q 1 4

C 2 7 1 2 - Y ( T E 8 5 R , F

LIMITER

11.9

D 1 8

Q 1 1

G N D 1

C 2 7 1 2 - Y ( T E 8 5 R , F

1 S S 3 5 5 V M

D 1 3

R 9 6

G 1

s 9

1 0 0

1 S S 3 5 5 V M

R 1 0 6

R 1 1 2

R 1 2 2

R 1 2 3

S I G 2

4 7

4 7 0

D 1 2

R 9 7

L I M T

1 0 0

1 S S 3 5 5 V M

D 1 6

Q 1 2

+ 1 2

11.9

+ 1 2

A 1 1 6 2 - Y ( T E 8 5 R , F

1 S S 3 5 5 V M

- 1 2

-12.2

- 1 2

-12.2

- 1 2

Q 1 5

O C D E T

-2.5

O C D E T

A 1 1 6 2 - Y ( T E 8 5 R , F

S P

S P R Y O N

1.4

S P R Y O N

E 2

W 4

11.9

+ 1 2

P N 1

P D E T

R 1 1 3

R 1 3 1

6 8 K

G 4

R 1 2 7

1 0 0 K

J G - 1 1 - T

1.4

2 2

Q 1 9

Q 2 2

Q 2 4

1.4

-15.4

1.6

-2.5

1.1

POWER

W 7 A 1

SUPPLY

R E

D 2 1

D 5 S B A 6 0

D 1 1

3.6

11.9

R 9 4

+ 1 2

2 2 K

-68.8

1 S S 3 5 5 V M

R 8 4

R 9 0

B L

4 7 K

3.6

W 7 A 2

3.6

Q 6

Q 8

3.6

R 7 3

1 0 K

3.6

R 9 9

0.7

R E

1 0

W 7 A 3

I C 2

N J M 7 8 M 1 2 F A

+ 1 2

R 8 1

17.8

I N

O U T

11.9

POWER

1 . 0

SUPPLY

C O M

S 1 N B 6 0 - 7 1 0 1

D 1 0

REGULATOR

17.8

C O M

R 8 2

1 . 0

I N

O U T

-17.8

-12.2

- 1 2

MAIN (6)

G 3

N J M 7 9 M 1 2 F A

n o _ u s e

I C 3

MAIN (2)

REGULATOR

C 4 6

I C 4

0 . 0 1 / 2 7 5

K I A 7 8 S 0 5 P - A T / P

R Y 2

I N

O U T

D L S 9 D 1 - O ( M ) 0 . 1 5

9.8

5.0

C O M

D 1 5

R 1 0 4

s 2 0

J 4

s 1 9

s 2 1

Q 1 6

s 2 4

9.8

SUB

POWER SUPPLY

T 1

4.0

1.2

9.8

Q 1 8

s 2 6

D 1 4

4.0

R 1 1 0

R 1 1 5

S 1 N B 6 0 - 7 1 0 1

s 2 8

0.7

s 2

C 7 8

AC8.9

Q 2 3

SUB-

C 2 7 1 2 - Y ( T E 8 5 R , F

s 1 0

TRANSFORMER

G 8 s 9

IC3: NJM79M12FA

IC2: NJM78M12FA

Voltage regulator

COMMON

INPUT

OUTPUT

INPUT

COMMON

A 1 8 3 7

R 1 5 3

68.6

2 7

68.8

68.0

68.8

68.0

A 1 3 1 2 - G R , B L ( T E 8

68.5

68.0

68.1

67.5

68.2

Q 2 7

Q 3 1

Q 3 3 C

0.6

1.1

4.8

68.6

R 1 4 5

PRE DRIVE

Q 4 3 C

68.8

C 4 7 9 3

2 . 2

R 1 5 8

R 1 6 5

5.8

5.3

1 0 K

68.7

0.4

Q 4 0

5 . 6 K

R 1 3 7

68.7

D 2 7

S T D 0 3 N

Q 4 2

4.8

R 1 5 2

-2.5

R R 2 6 4 M - 4 0 0 T R

1 0

3 . 9 K

5.8

0.6

PS AMPLIFIER

Q 2 9

L 4

0.1

0 . 9 5 U H

-67.9

R 1 7 3

4 . 7

0.4

-5.8

-4.8

Q 4 3 A

C 8 8

A 1 8 3 7

R 1 4 6

R 1 6 6

-5.8

-5.4

1 0 0 0 P / 2 0 0

2 . 2

5 . 6 K

-67.9

-1.0

D 3 0

D 2 2

-1.0

-4.8

T P 2

Q 3 2

Q 3 3 A

R R 2 6 4 M - 4 0 0 T R

S T D 0 3 P

-67.3

-68.7

-67.9

-67.3

Q 2 8

-67.9

-68.0

-67.9

G N D 3

Q 3 0

-68.5

K T A 1 2 6 6 ( Y )

C 3 3 2 4 - G R , B L ( T E 8

G 7

-68.1

-68.8

n o _ u s e

-68.8

R 1 5 4

-68.7

2 7

R 1 6 2

C 4 7 9 3

C 9 2

1 5 0 K

1 0 0 0 P / 2 0 0

N J M 4 5 8 0 E ( T E 2 )

R 1 5 5

R 1 7 6

3 3 0 K

C 1 0 3

R 1 6 7

2 2 K

I C 1 1

1 0 0

0 . 4 7

R 1 6 8

V -

-12.2

1 0 0 K

R 1 6 9

1 0 K

C 1 0 4

1 0 / 5 0

- 1 2

G 6

G N D 2

G N D 1

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

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

G N D 3

s X X

G 2

s 1

J G - 1 1 - T

s 2

Q 5 0

D 4 2

R R 2 6 4 M - 4 0 0 T R

D 8

A 9 4 9 ( O / Y )

R 2 1 1

44.0

5.0

23.4

s 3

2 2

5.0

45.0

23.4

s 4

44.0

0.1

D 9

44.0

s 5

45.0

0.9

R R 2 6 4 M - 4 0 0 T R

44.0

s 6

1.4

44.0

+ B

0.7

s 7

R 1 9 1

25.6

0.1

1 0 K

44.0

s 8

0.7

20.6

s 9

G 8 , G 5

s 1 0

- B

s 1 1

s 1 2

5 k-ohms

10 W

s 1 7

5 k-ohms

10 W

s 1 8

s 1 9

s 2 0

s 2 1

s 2 2

s 2 3

s 2 4

s 2 5

s 2 6

s 2 7

s 2 8

s 3 0

s 3 1

s 3 2

s 3 3

s 3 4

s 3 5

s 3 6

s 3 7

s 3 8

s 3 9

s 4 0

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.

C85, C86 on MAIN (1) P.C.B.

安全対策

・この製品の内部には高電圧部分があり危険です。修理の際は、絶縁性の手袋を使用するなどの安全対策を行ってください。

・下記のコンデンサには電源を OFF にした後も電荷が残り、高電圧が維持されており危険です。修理作業前に放電用抵抗（5 kΩ/10 W）を

下記の各コンデンサの端子間に接続して放電してください。放電所用時間は各々約 30 秒間です。

MAIN (1) P.C.B. の C85、 C86

IC4: KIA78S05P-AT/P

Three terminal positive voltage regulator

3 INPUT

Q14

IC5: NJM2904M (TE3)

Q12

Single supply dual operational amplifier

Q13

Q11

Q16

Q10

OUTPUT

COMMON

NS-SW300/NS-SW200

+ B

Q 4 5 A

C 1 1 0

S T D 0 3 P

68.8

0 . 2 2

W J 3 6 2 1 0

S T D 0 3 P

R 1 7 8

2 2 0

68.6

4.8

D 3 9

S 2 L 2 0 U - 5 0 0 2 P 7 . 5

L 5

4.8

R Y 1

1 2 0 U H

O S A - S H - 2 2 4 D M 3 M

D 4 0

S 2 L 2 0 U - 5 0 0 2 P 7 . 5

C B 6

S P +

R E

DRIVER

N F

SUBWOOFER

S P -

W H

D 3 7

S 2 L 2 0 U - 5 0 0 2 P 7 . 5

G N D 3

V H I

L 6

-4.8

1 2 0 U H

D 3 8

-68.7

Q 4 5 C

S 2 L 2 0 U - 5 0 0 2 P 7 . 5

R 1 7 9

-4.8

G N D 2

2 2 0

W J 3 6 2 2 0

C 1 1 1

S T D 0 3 N

0 . 2 2

S T D 0 3 N

-68.8

W K 1 9 2 9 0

T P 1

- B

N J M 4 5 8 0 E ( T E 2 ) 3

I C 1 1

11.9

R 1 7 7

V +

1 0 K

C 1 1 2

1 0 / 5 0

+ 1 2

L O C

R S

T K

B G L H

T E 1

V C 3 1 3 7 0

V 4 8 1 1 4 0

V C 3 1 3 7 0

V 4 8 1 1 4 0

T 1

Y C 6 3 6 A 0

Y C 6 3 7 A 0

Y C 6 3 8 A 0

Y C 6 3 9 A 0

Y C 6 3 6

Y C 6 3 7

Y C 6 3 8

Y C 6 3 9

F 1

W G 4 1 0 5 0

K B 0 0 0 7 9

K B 0 0 0 7 5

6 A 1 2 5 V

T 4 A L 2 5 0 V

T 2 A L 2 5 0 V

C 8 5

V 6 0 9 2 5 0

Z H 8 6 0 1 0

V 6 0 9 2 5 0

C 8 6

8 2 0 0 / 8 0

9 0 0 0 / 9 0

8 2 0 0 / 8 0

C 8 4

W B 5 4 0 2 0

0 . 1 / 2 5 0

J 8

V N 5 0 0 0 0

J I S C 3 1 0 1

C 5 6

U S 0 6 2 1 0

1 0 0 P ( S L )

C 8 1

U S 0 6 2 4 7

U S 0 6 3 2 2

U S 0 6 2 4 7

U S 0 6 3 2 2

4 7 0 P ( S L )

2 2 0 0 P ( B )

4 7 0 P ( S L )

2 2 0 0 P ( B )

V 7 2 3 5 1 0

G 1

J G - 1 1 - T

C 4 3

U S 0 6 4 1 0

C 6 9

0 . 0 1 ( B )

C 7 8

L 3

V 5 1 1 7 8 0

B - 1 0

J 6

V N 5 0 0 0 0

J I S C 3 1 0 1

C B 1 2

W N 0 7 7 7 0

C B 1 1

| P F C 5 0 0 0 - 0 2 0 2 F |

F 2

K B 0 0 0 7 5

T 2 A L 2 5 0 V

D 1 5

W R 8 9 7 3 0

R R 2 6 4 M - 4 0 0 T R |

R 1 0 4

V C 7 4 3 8 0

1 P 3 3

J 4

V N 5 0 0 0 0

J I S C 3 1 0 1

D 1 7

W Y 1 6 3 2 0

U D Z V 5 . 1 B

R 1 0 5

R D 3 5 8 1 0

1 0 0 K

Q 1 6

V J 9 2 7 2 0

Q 2 1

| A 1 1 6 2 - Y ( T E 8 5 R , F |

Q 2 0

R 1 0 8

R D 3 5 7 4 7

4 7 K

Q 1 8

V J 9 2 7 1 0

| C 2 7 1 2 - Y ( T E 8 5 R , F |

S W 4

W C 9 0 6 7 0

S D K P A 4 0 3 0 0

R 1 1 5

R D 3 5 7 1 0

R 1 1 0

1 0 K

R 1 2 1

R D 3 5 6 8 2

8 . 2 K

R 1 2 0

R D 3 5 7 1 2

1 2 K

R 1 1 9

R D 3 5 6 1 0

1 K

W 1 1 A

M H 1 9 6 1 8

M H 1 9 6 1 4

M H 1 9 6 2 0

M H 1 9 6 1 8

M H 1 9 6 2 0

W 1 1 B

W 1 2 A

M H 1 6 6 1 8

M H 1 6 6 1 4

M H 1 6 6 2 0

M H 1 6 6 1 8

M H 1 6 6 2 0

W 1 2 B

C 5 3

W J 6 1 0 2 0

C 5 4

0 . 0 1 / 1 0 0

W 1 4 B

M H 1 4 6 1 4

W 1 4 A

| 1 P 1 4 0 M M Y E L M - |

W 1 6 B

M H 1 1 6 1 4

W 1 6 A

| 1 P 1 4 0 M M B R N M - |

W 1 3 B

M H 1 5 6 1 4

W 1 3 A

| 1 P 1 4 0 M M G R E M - |

W 1 5 A

M H 1 6 6 1 4

W 1 5 B

| 1 P 1 4 0 M M B L U M - |

C 3 0

U S 0 6 1 1 0

1 0 P ( C H )

IC6–11: NJM4580E

Dual operational amplifier

V+

2, 6

1, 7

OUTPUT

1. A OUTPUT

–INPUT

2. A-INPUT

3. A+INPUT

+INPUT

4. GND

3, 5

5. B+INPUT

6. B-INPUT

7. B OUTPUT

8. V

V–

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