Yamaha A-S801 Service Manual page 63

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Table Of Contents

Table of Contents

MAIN 1/2

55.2

1 m A

54.7

1 m A

54.1

6 0 V

6 0 m W

0 . 5 m A

C 1 0 3

R 1 0 1

6 0 V

0.05

1 P 1 0 0

3 0 m W

s 2 3

Q 1 0 1

-54.1

Q 1 0 9

C 1 0 1

R 1 0 6

n o _ u s e

1 P 3 3 K

D 1 0 1

1 S S 3 5 5 V M

Q 1 0 3

Q 1 0 5

0 . 5 m A

0 . 6 m V

Page 59

F10

-54.7

-54.17

to FUNCTION (2)_W402

0 . 1 1 V

-54.9

OUT L

0.0

R 1 0 5

C 1 0 5

0.0

1 P 2 . 2

2 2 0 P / 6 3 0

C B 1 0 5

Page 59

to FUNCTION (2)_W401

Q 1 0 4

Q 1 0 6

s 4 3

D 1 0 2

1 S S 3 5 5 V M

C 1 0 2

R 1 0 7

1 P 3 3 K

n o _ u s e

Q 1 0 2

Q 1 1 0

R 1 0 2

C 1 0 4

1 P 1 0 0

s 2 3

P N 1 0 2

P N 1 0 3

n o _ u s e

N O T I C E

( m o d e l )

R E S I S T O R

J A P A N

R E M A R K S

P A R T S

N A M E

U . S . A

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 N A D A

C A R B O N

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

( P = 1 0 )

G E N E R A L

M E T A L

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

C H I N A

M E T A L

F I L M

R E S I S T O R

K O R E A

M E T A L

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

A U S T R A L I A

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

B R I T I S H

C E M E N T

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

S T A N D A R D

S E M I

V A R I A B L E

R E S I S T O R

S I N G A P O R E

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

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

J Y 1 0 9

J Y 1 0 1

J Y 1 0 6

J Y 1 0 7

J Y 1 0 3

J Y 1 0 2

J Y 1 1 0

J Y 1 1 1

J Y 1 0 4

J Y 1 1 2

J Y 1 1 3

J Y 1 0 8

J Y 1 1 9

J Y 1 1 4

J Y 1 1 5

J Y 1 1 6

3 0 m m

4 0 m m

5 0 m m

6 0 m m

7 0 m m

M A I N

F i n a l T r p a i r

V P 7 6 8 6 0

H e a t s h e e t

V V 8 4 9 3 0

D u m p e r

V P 9 2 2 5 0

S c r e w

V K 1 7 3 2 0

6 m A

R 1 6 6

55.1

1 0 K

56.0

Q 1 4 0

R 1 4 8

R 1 6 7

Q 1 1 9

1 P 4 . 7

R 1 4 4

4 7 K

1.08

4 . 7

1.08

56.1

R 1 4 9

1 . 0 m A

0.5

1 P 4 . 7

Q 1 4 1

R 1 6 2

0.0

Q 1 1 7

4 . 7 K

0.0

L 1 0 3

-0.43

R 1 5 6

n o _ u s e

3 P 0 . 2 2 X 2

C 1 1 4

-1.08

1 5 P / 6 3 0

0 . 9 5 U H

L 1 0 1

R 1 1 8

0.0

R 1 7 5

s 1 6

0.0

1 P 4 . 7

R 2 2 5

R 1 5 9

0.0

3 P 0 . 2 2 X 2

4 . 7 K

-0.5

R 1 5 0

1 P 4 . 7

R 1 2 0

-0.5

1 P 4 7 K

Q 1 2 0

R 1 5 1

-53.7

1 P 4 . 7

0.0

Q 1 1 1

-54.3

K T A 1 5 0 4 S - Y , G R - R

-54.8

0 . 7 V

7 m A

R 1 3 6

1 P 4 7

C 1 1 8

s 2 5

C 1 1 9

s 2 5

R 1 3 7

1 P 4 7

K T A 1 5 0 4 S - Y , G R - R

Q 1 1 2

R 1 5 2

Q 1 3 8

1 P 4 . 7

R 1 2 1

1 P 4 7 K

R 1 5 3

1 P 4 . 7

R 1 5 7

3 P 0 . 2 2 X 2

R 2 2 6

4 . 7 K

R 1 1 9

R 1 7 6

s 1 6

1 P 4 . 7

0 . 9 5 U H

L 1 0 2

C 1 1 5

R 1 5 8

3 P 0 . 2 2 X 2

1 5 P / 6 3 0

R 1 6 3

L 1 0 4

4 . 7 K

n o _ u s e

Q 1 1 8

Q 1 2 5

R 1 5 4

1 P 4 . 7

R 1 4 5

4 . 7

Q 1 3 9

R 1 5 5

1 P 4 . 7

SUBWOOFER OUT

Note: Those parts marked with "#" are not included in the P.C.B. ass'y.

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

P O L Y P H E N Y L E N E

S U L F I D E

F I L M

C A P A C I T O R

5 k-ohms

10 W

P N 1 0 4

G 1 0 1

S T A R E A R T H V 5 9 9 5 8 0

23.6

5 k-ohms

10 W

S T 1 0 1

23.6

22.9

-24.7

Q 1 2 7

Q 1 2 6

22.9

S P B R Y

0.0

K R C 1 0 4 S - R T K / P

R 1 7 8

4 7 K

0.0

L c h

n o _ u s e

R Y 1 0 5

R Y 1 0 2

D H 2 4 D 2 - O T ( M )

R Y 1 0 2

0.0

D H 2 4 D 2 - O T ( M )

R Y 1 0 5

n o _ u s e

C 1 3 3

s 3 4

R 1 7 9

1 0 0 K

R c h

R 1 7 7

5 6 K

1 0 0 P ( S L )

1 2 K

C 1 4 1

R 1 8 9

3 3 K

5 6 K

0.0

0 . 1

R 1 8 0

R 1 8 2

I C 1 0 3

3 3 K

C 1 4 4

7.0

1 2 K

R 2 2 7

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

R 1 8 1

0.0

I C 1 0 3

R 1 8 7

5 . 6 K

I C 1 0 3

-7.0

V -

I C 1 0 3

LPF

Page 59

to FUNCTION (1)_W405

to FUNCTION (1)_W505

IC103: NJM4580E

Dual operational amplifier

V+

2, 6

–INPUT

+INPUT

3, 5

V–

Page 64

to MAIN (2)_CB13

1 N 4 0 0 3 S

R 1 9 9

1 P 1 0

D 1 1 6

S W 1 0 1

S L 1 3 B - 0 2 2 A S C 4 0

D 1 1 5

C B 1 0 4

R 2 0 0

A C H

1 P 1 0

1 N 4 0 0 3 S

A C H

to POWER

A C L

TRANSFORMER

A C L

V H I

IMPEDANCE

SELECTOR

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

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

S W 1 0 1

s x x

L O C A T I O N

S L 1 3 B - 0 2 2 A S C 4 0

s 1

C 1 4 2

C 1 4 3

C 1 4 8

C 1 5 2

C 1 5 5

C 1 5 6

C 1 5 9

C 1 6 0

s 2

R 1 8 3

R 1 8 4

s 8

T E 1 0 2

15.8

15.1

15.0

s 9

T E 1 0 1

Q 1 2 9

Q 1 3 7

3.7

s 1 5

C 1 3 1

7.7

C 1 3 2

s 1 6

R 1 1 8

R 1 1 9

Q 1 2 8

Q 1 3 6

s 2 1

C 1 3 6

C 1 3 9

4.9

0.0

s 2 2

C 1 4 0

s 2 3

C 1 0 3

C 1 0 4

K R C 1 0 4 S - R T K / P

s 2 5

C 1 1 8

-24.6

C 1 1 9

s 2 9

C 1 4 6

S P A R Y

C 1 4 7

s 3 1

C 1 1 0

C 1 1 3

s 3 2

C 1 2 4

C 1 2 5

s 3 3

C 1 3 7

C 1 3 8

R Y 1 0 3

R 2 2 1

s 3 4

C 1 3 3

1 . 0

9 8 1 - 2 A - 2 4 D S - S P 7

R Y 1 0 3

R 2 2 2

s 4 3

C B 1 0 5

9 8 1 - 2 A - 2 4 D S - S P 7

1 . 0

n o _ u s e

R Y 1 0 4

T E 1 0 2

R Y 1 0 1

R E D

S P L A

D H 2 4 D 2 - O T ( M )

R Y 1 0 4

n o _ u s e 2

B L A C K

S P L G

S P A R Y

R Y 1 0 1

R E D

S P L B

D H 2 4 D 2 - O T ( M )

B L C A K

S P L G

s 8

SPEAKERS

s 9

B L C A K

S P R G

S P B R Y

R E D

S P R B

B L A C K

S P R G

R E D

S P R A

T E 1 0 1

P J 1 0 1

n o _ u s e

R 2 1 9

M A I N I N _ L

n o _ u s e

M A I N I N _ R

R 2 2 0

n o _ u s e

C 1 5 3

R 2 1 8

n o _ u s e

R 1 9 0

R 2 0 6

R 2 1 6

P R E O U T _ L

n o _ u s e

R 1 9 6

R 2 0 1

n o _ u s e

Q 1 3 0

Q 1 3 1

Q 1 3 4

R 1 9 7

R 2 0 2

n o _ u s e

R 1 9 1

R 2 0 7

R 2 1 7

P R E O U T _ R

n o _ u s e

P J 1 0 2

C 1 4 5

SUBWOOFER

R 1 9 2

R 2 0 3

R 2 2 3

S W P R E O U T

OUT

1 0 0 / 1 6

4 7 0

1 P 2 2 0

R 1 9 8

R 2 0 4

C 1 6 1

1 0 K

R 2 2 4

Q 1 3 2

Q 1 3 5

0 . 1 / 1 0 0

2 . 2

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

POWER

T H M L

W 1 0 2

C B 1 0 6

3 P 1 8 0 M M B & C

P H L

MANAGEMENT

I C 1 0 1

to HEATSINK

L M 6 1 C I Z

L temperature

H I

V C C

O U T

P O W _ M G T O N

G N D

MAIN (4)

P O W _ M G T O F F

S T 1 0 2

S W 1 0 2

T H M R

L O W

W 1 0 3

C B 1 0 7

3 P 1 8 0 M M B & C

P H L

I C 1 0 2

to HEATSINK

L M 6 1 C I Z

V C C

O U T

R temperature

G N D

MAIN (5)

M A I N ( 1 )

MAIN (1)

S T 1 0 3

IC101, 102: LM61CIZ

Temperature sensor

1, 7

OUTPUT

A-S801

B l u e / 1 1 5 V

N O U S E

O r a n g e / 1 1 5 V

1 1 0 - 1 2 0 V

2 2 0 - 2 3 0 V

C B 1 0

Y e l l o w / 0 V

R e d / 1 1 5 V

P u r p l e / 0 V

G r a y / 0 V

P _ S E L

MAIN (3)

K L

Z D 5 2 0 0 0

0 . 0 1 / 1 0 0

W W 8 6 1 7 0

4 . 7

W U 9 8 7 4 0

W U 9 8 7 6 0

W U 9 8 7 3 0

W U 9 8 7 5 0

W Q 2 0 9 7 0

Z D 5 2 0 5 0

W Q 2 0 9 7 0

0 . 0 2 7 / 1 0 0

W N 4 6 2 2 0

V 8 0 7 2 6 0

W N 4 6 2 2 0

1 P 3 3 K

W W 3 1 4 7 0

Z H 9 9 6 9 0

W W 3 1 4 7 0

0 . 0 3 3 / 1 0 0

0 . 1 / 1 0 0

0 . 0 3 3 / 1 0 0

W E 1 0 2 9 0

Z D 5 2 0 0 0

W E 1 0 2 9 0

0 . 0 1 / 1 0 0

W M 0 9 8 1 0

U R 2 3 7 1 0

W M 0 9 8 1 0

4 . 7 / 5 0

1 0 / 1 6

4 . 7 / 5 0

U R 0 7 8 4 7

U R 2 7 8 4 7

U R 0 7 8 4 7

4 7 0 / 6 3

U U 2 9 7 3 3

U R 2 6 7 1 0

U U 2 9 7 3 3

3 3 / 1 0 0

1 0 / 5 0

3 3 / 1 0 0

U U 2 3 8 1 0

U R 2 6 8 1 0

U U 2 3 8 1 0

1 0 0 / 1 6

1 0 0 / 5 0

1 0 0 / 1 6

U R 3 4 8 1 0

U R 2 3 7 4 7

U R 3 4 8 1 0

1 0 0 / 2 5

4 7 / 1 6

1 0 0 / 2 5

U R 0 3 8 1 0

U R 2 3 7 4 7

U R 0 3 8 1 0

1 0 0 / 1 6

4 7 / 1 6

1 0 0 / 1 6

U R 0 3 8 1 0

U R 2 1 8 1 0

U R 0 3 8 1 0

1 0 0 / 1 6

1 0 0 / 6 . 3

1 0 0 / 1 6

V L 8 4 4 8 0

X H I

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.

C134, C135 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 k Ω /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 C134、C135

P N 1 0 5

P N 1 0 6

P N 1 0 7

P N 1 0 8

P N 1 0 9

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

★ Components having special characteristics are marked

and must be replaced

with parts having speci cations equal to those originally installed.

★ Schematic diagram is subject to change without notice.

● 電圧は、内部抵抗 10M Ω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。

Details of colored lines

Red / full line:

Power supply (+)

Red /dashed line: Power supply (-)

Orange:

Signal detect

Yellow:

Clock

Green:

Protection detect

Brown:

Reset signal

Blue:

Panel key input

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