Schematic Diagrams - Yamaha R-S202 Service Manual

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Owner's manual (118 pages)

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Owner's manual (37 pages)

Table of Contents

■ SCHEMATIC DIAGRAMS

Page 46 B6

to MAIN (2)_CB501

MAIN 1/2

t o F L ( C B 5 0 1 )

MAIN (7)

T H M

W 2 5 0

C B 1 0 1

0.83V

I C 2 5 0

T H M

L M 6 1 C I Z

3.27V

O U T

V C C

3 . 3 S

M G

G N D

P H I

S A N - P H

S T 2 5 0

M K E Y 0

M K E Y 1

R 3 0 6

P R D

R 2 6 4

1 0 0

T H M

1 K

R 3 1 1

P R P S

1 K

S P B R Y

B T _ M I S O

C B 2 0 1

B T _ M O S I

T _ T X D

B T _ N _ R S T

3.27V

T _ B U S Y / T _ N _ R S T _ O U T

T _ N _ R S T _ O U T

S P A R Y

3.27V

T _ R X D / T O O L O

T O O L 0

T _ P G M / O E

H P R Y

T _ V P P

G N D

T H M 2

3.27V

N _ T _ R S T

N _ R S T

T _ S C L K

(for factory)

3.27V

T _ V D D

5 2 0 4 4

to AM/FM TUNER

(R-S202)

Page 46 F9

3.3V

to MAIN (8)_CB602

(R-S202D)

C B 2 0 2

N _ R S T

3.58V

T U _ N _ R S T

R 2 6 6

S D A

3.61V

T U _ S D A

R 2 5 9

1 0 0

3.61V

S C L

T U _ S C L

1 0 0 K

N _ I N T

G P I O 2

N C

+ 3 . 3 V

3.61V

R 2 6 7

R c h

1 0 0

G N D

L c h

R 2 6 1

5 2 0 4 5

1 0 0 K

T E

D G N D

R 5 5 6

1 0 0 K

A G N D

R 5 5 5

H P R Y

1 0 0 K

S P A R Y

AM/FM TUNER/DAB IN

S P B R Y

P R D

P R I

E V O L _ S C L

E V O L _ S D A

CD IN

P J 2 0 3

R 2 0 2

4 7 0

C D

L = 1

R = 2

4.28V

L 3 L

B 1

A 1

B T A _ L

1 0 / 5 0

C 2 3 6

L 3 R

B 2

A 2

B T A _ R

1 0 / 5 0

C 2 3 7

L 2 L

C 1

F I L

1 0 / 5 0

C 2 3 4

L 2 R

C 2

G N D

1 0 / 5 0

C 2 3 5

R 2 1 2

L 1 L

D 1

S D A

4 7 0

1 0 / 5 0

C 2 4 2

L 1 R

D 2

S C L

1 0 / 5 0

C 2 4 3

C D L

E 1

V C C

1 0 / 5 0

C 2 3 8

C D R

E 2

O U T 1

1 0 / 5 0

C 2 3 9

T U L

F 1

S B 1

L I N E 1

1 0 / 5 0

C 2 4 0

T U R

F 2

S R

1 0 / 5 0

C 2 4 1

L 2 O R

S E L 2

S B 2

C 2 3 0

1 0 / 5 0

L 2 O L

S E L 1

O U T 2

C 2 3 1

V O L 1

B C B 1

R J - 1 0 7 3 _ 0 9 - 0 3 5 1

1 0 / 5 0

C 2 4 4

V O L 2

B C A 1

P J 2 0 2

1 0 / 5 0

C 2 4 5

T C 2

B C A 2

R 2 1 4

1 8 0 0 P / 1 0 0

C 2 4 6

T C 1

B C B 2

4 7 0

1 8 0 0 P / 1 0 0

C 2 4 7

4.28V

L I N E 2

A G N D

E-VOLUME

R 2 1 5

4 7 0

LINE

R J - 1 0 7 4 _ 0 9 - 0 3 5 3

P J 2 0 2

R 2 0 5

4 7 0

OUT

L I N E 3

R J - 1 0 7 4 _ 0 9 - 0 3 5 3

REC OUT

P J 2 0 2

1 0 / 1 6

1 0

R 2 0 3

R 2 7 3

1 K

C 2 1 6

D 2 7 0 4 ( K )

1 . 2 K

R 2 3 6

1 0 K

L I N E 3 R E C

1 1

Q 2 0 1

Q 2 0 2

R 2 3 7

1 0 K

R 2 0 4

1 0 / 1 6

D 2 7 0 4 ( K )

R 2 7 7

1 K

1 . 2 K

C 2 1 7

R J - 1 0 7 4 _ 0 9 - 0 3 5 3

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 T I C E

( m o d e l )

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

J A P A N

E U R O P E A N S T A N D A R D

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

C A P A C I T O R

U . S . A

S I N G A P O R E

N O

M A R K

C E R A M I C

C A P A C I T O R

C A N A D A

S O U T H E U R O P E

C E R A M I C

T U B U L A R

C A P A C I T O R

G E N E R A L

T A I W A N

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

C A P A C I T O R

C H I N A

R U S S I A N

P O L Y S T Y R E N E

F I L M

C A P A C I T O R

K O R E A

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

M I C A

C A P A C I T O R

A U S T R A L I A

B R A Z I L

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

B R I T I S H

T H A I

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

5 2 8 0 6 - 1 5 1 0

W G 0 3 3 6 0

+ 3 . 3 B T

R 2 3 8

1 0

C 1 9 8

s 2 0 2

D e s t i n a t i o n r e c o g n i t i o n

1 0 0 P ( S L )

R 2 8 0

C 1 9 9

R - S 2 0 1

5 6 0

2 0 K

1 . 8 K

2 . 7 K

9 . 1 K

1 0 0 P ( S L )

s 2 0 2

M o d e l R e c o g n i t i o n

C 1 9 3

R - S 2 0 2

R 3 0 4

1 0 k

R - S 2 0 2 D

R 2 7 9

1 0 k

1 0 0 P ( S L )

C 1 9 4

1 0 0 P ( S L )

C 1 9 6

1 0 0 P ( S L )

C 1 9 5

1 0 0 P ( S L )

C 2 8 3

C 2 8 4

1 0 0 0 P ( B )

R 2 2 4

1 0 K

0 . 1 / 1 6

C 2 8 0

R 3 0 5

3 9

2 7

R 2 9 0

K E Y 0

F L _ S C K

M F L _ S C K

4 0

2 6

1 0 0

1 K

K E Y 1

F L _ M I S O

R 2 3 1

M F L _ M I S O

4 1

2 5

B T _ N _ R S T

P R D

F L _ M O S I

R 2 4 9

1 K

M F L _ M O S I

4 2

2 4

T H M

F L _ S T B

1 K

R 2 8 9

M F L _ S T B

4 3

2 3

R 3 0 2

R 2 9 8

1 K

P R P S

I C 2 0 3

E V O L _ S D A

4 4

2 2

2 . 2 K

1 0 0

R 2 3 3

T E S T

E V O L _ S C L

R 2 9 7

E V O L _ S C L

4 5

2 1

R 5 F 1 0 0 J F A F A

2 . 2 K

V R E F M

1 0 0

4 6

MICROPROCESSOR

2 0

R 2 4 8

V R E F P

G P I O 2

4 7

1 9

1 0 0

S P B R Y

P R I

R 2 6 2

P R I

4 8

1 8

B T _ M I S O

1 K

4 9

1 7

Q 1 2 2

B T _ M O S I

T U _ N _ R S T

R 2 8 7

T U _ N _ R S T

R 1 8 9

5 0

1 6

R 2 7 6

1 0 0

3 0 K

B T _ N _ R S T

T U _ S D A

5 1

1 5

1 0 0

S P A R Y

T U _ S C L

R 2 7 2

T U _ S C L

5 2

1 4

9 1 0 1 1

1 2 1 3

1 0 0

F o r c e r e s e t

D G N D

M _ P R Y

B T _ M F B

N _ R S T

4 5 0 m m

P W R _ D E T

t o C P U _ P C B

P R P S

D G N D

3.3V

Q 2 0 8

A 1 0 3 7 A K ( Q / R / S )

D T C 0 1 4 E U B T L

3.26V

R 2 7 0

R 2 7 4

4 . 7 K

1 0 0 K

Q 2 0 5

S T 1 0 3

-8.7V

R E C O U T M U T E

A 1 0 3 7 A K ( Q / R / S )

3.26V

R 2 7 1

R 2 7 5

4 . 7 K

1 0 0 K

Q 2 0 6

P R E O U T M U T E

-8.7V

5 0 V

66V

1 / 1 6 W = 6 2 . 5 m W

3 2 . 8 m W

40.3V

2 . 0 m A

Q 1 0 9

20.5V

3 2 . 8 m W

Q 1 0 7

R 1 3 7

R 1 4 3

C 1 0 1

2 . 2 K

2 . 2

BT IN

0.65V

4 7 P ( C H )

C 1 1 2

R 1 2 3

4 7 0

5 P ( C H )

Q 1 0 3

5 0 m W

C 2 5 3 1 0 / 5 0

C 1 0 4

R 1 0 7

R 1 2 1

B T A _ L

C 2 7 5 1 0 / 5 0

1 K

0.09V

3 3 K

B T A _ R

1 0 / 5 0

C 2 5 4 1 0 / 5 0

Q 1 0 1

C 1 1 8

- 0 . 6 V

C 2 6 2

7 5 p

K T B 6 3 1 K - Y - U / P H

3.3V

1 5 0 P ( S L )

D 1 0 3

Q 1 1 0

8.94V

1 0 0 0 / 1 0

Q 1 0 5

B A V 1 0 3

C 2 6 1

7 7 6 m V

C 2 5 9

0 . 1 / 1 6

R 1 4 4

0 . 2 4 V

1 / 5 0

2 . 2

C 2 6 0

8 4 0 u W

2 . 0 m A

1 / 5 0

0 . 8 4 V

1 . 0 m A

R 2 5 2

C 2 4 8 0 . 2 2 / 5 0

4 . 7 K

C 2 6 3

R 2 5 5

- 5 0 V

–61V

C 2 4 9 0 . 2 2 / 5 0

1 . 2 K

R 2 5 3

1 0 / 5 0

C 2 5 0 0 . 2 2 / 5 0

4 . 7 K

Q 2 0 3

R 2 5 6

C 2 5 1 0 . 2 2 / 5 0

D 2 7 0 4 ( K )

1 0 K

C 1 0 6

R 1 0 8

1 0 0 P ( S L )

2 . 2

Q 2 0 4

R 2 5 7

D 2 7 0 4 ( K )

1 0 K

C 2 6 4

R 2 5 4

1 0 / 5 0

1 . 2 K

R 1 4 5

Q 1 0 6

2 . 2

D 1 0 4

B A V 1 0 3

Q 1 1 1

C 1 1 9

1 5 0 P ( S L )

Q 1 0 2

Q 1 0 4

C 1 0 3

R 1 0 6

R 1 2 2

1 K

3 3 K

1 0 / 5 0

C 1 1 3

R 1 2 4

Q 1 0 8

5 P ( C H )

4 7 0

2 . 2 K

R 1 4 6

C 1 0 2

R 1 3 8

2 . 2

4 7 P ( C H )

D 2 7 0 4 ( K )

Q 1 1 2

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

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

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

★ Components having special characteristics are marked ⚠ and must be replaced

C E M E N T

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

with parts having speciﬁcations equal to those originally installed.

S E M I

V A R I A B L E

R E S I S T O R

★ Schematic diagram is subject to change without notice.

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

to BTCARD

T o B T c a r d

C B 1 0 2

( E x c e p t R L D e s t i n a t i o n )

0 V

BT IN

( E x c e p t R L D e s t . )

P r i

R 3 3 2

B T A _ L

+ 8 . 4 V

1 0 0

H O T

R 2 8 3

V +

1 5 K

I C 1 0 2

N J M 2 9 0 4 M

R 3 3 1

to POWER

2 2 K

TRANSFORMER

C 1 5 0

R 3 2 9

TRANSFORMER

1 5 K

1 0 0 P / 1 0 0

P R I M A R Y

A G N D

C 1 4 5

R 3 2 8

1 5 K

1 0 0 P / 1 0 0

R - S 2 0 2

R 3 3 0

2 2 K

C 6

N J M 2 9 0 4 M

0 . 0 1 / 2 5 0

R 2 5 1

I C 1 0 2

R Y 1

F 1

1 5 K

V -

s 1

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

C B 5

C B 6

T P 0 0 3 5 1 - 3 1

R 3 2 7

B T A _ R

1 0 0

D 1 0

R 1 2

1 S S 3 5 2

C 4

1 0 K

D 9

R 1 8

0 . 1 / 1 6

4 7 K

1 S S 3 5 2

U C : Y F 7 6 4

R : Y F 7 6 5

A : Y F 7 6 6

G : Y F 7 6 6

L : Y F 7 6 6

s 3

+ 3 . 3 B T

C 1 1

C 8

C 1 3

R 8

2.37V

s 1 7

0 . 1 / 1 0 0

s 1 7

1 0 K

D 7

3.6V

D B 1 0 5

2 0 0

1 2 V

7 V

J 2

P R Y

s 8

D 1

s 1 1

N _ R S T

1 S S 3 5 2

P W R _ D E T

s 6

s 5

3.3V

7.7V

+ 3 . 3 M

V O U T

V D D

7 . 0 S

R 1 3

M G

G N D

s 6

C E

D E L A Y

I C 1

R 1 1 9 0 H 0 3 3 B - T 1 - F

Q 3

s 1 8

1 . 6 5 V

Q 8

C 1 4

s 1 2

K T C 4 3 7 6 - Y - R T F / P

D 6

1 . 0 V

s 7

S T 1

5 k-ohms

10 W

C 1 4 0

S T A R E A R T H

6 8 0 0 / 6 6

V 5 9 9 5 8 0

5 k-ohms

G 1 0 1

10 W

1 2

–9.2V

R 1 6 7

R 3 2 2

1 8 K

F o r M u t e

R 1 5 8

1 0 K

R 1 6 1

4 7 K

Q 1 1 3

Q 1 1 7

R 1 0 1

1 K

0.048V

R 1 6 3

1 0

L 1 0 2

R 1 6 4

1 U H

4 7 K

R 1 4 9

5 1 0

Q 1 1 4

1 0 0 / 6 . 3

C 1 3 7

Q 1 1 5

R 1 5 0

5 1 0

1 U H

5 6 K

L 1 0 1

R 1 6 5

1 0

R 1 6 2

R 2 6 9

Q 1 1 6

1 K

R 1 5 6

4 7 K

0 . 1 / 2 W

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

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

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

s x x

L O C A T I O N

U C

s 1

F 1

W Q 2 1 1 1 0

V V 0 7 1 8 0

8 A 1 2 5 V

T 4 . 0 A L 2 5 0 V

s 2

J 4

V N 5 0 0 0 0

s 3

T 1

Y F 7 6 4 A 0

Y F 7 6 5 A 0

Y F 7 6 6 A 0

Y F 7 6 4

Y F 7 6 5

Y F 7 6 6

s 4

R 1 5

R D 3 5 7 1 5

1 5 K

s 5

R 1 3

R D 3 5 6 3 3

3 . 3 K

s 6

Q 6

W C 3 9 7 6 0

Q 7

2 N 5 4 0 1 S - R T K / P

M A I N T r a n s f o r m e r

s 7

Q 8

W C 3 9 8 3 0

2 N 5 5 5 1 S - R T K / P

s 8

Q 5

Z G 2 4 5 7 0

| K T A 1 6 6 1 - Y - R T F / P |

S 1

s 1 0

R 1 4

W W 9 7 5 7 0

4 7 K

s 1 1

J 2

V N 5 0 0 0 0

S 2

s 1 2

D 6

W Y 1 6 4 1 0

U D Z V 1 2 B

s 1 3

R 1 1

W W 9 7 5 7 0

4 7 K

s 1 4

R 7

R D 3 5 7 1 0

1 0 K

s 1 5

C 1 0

U R 8 6 7 1 0

1 0 / 5 0

s 1 6

D 8

Z U 1 2 9 1 0

F 3 A

s 1 7

C 1 1

W W 1 9 4 1 0

C 1 3

0 . 1 / 1 0 0

s 1 8

C 1 4

U R 8 6 6 1 0

1 / 5 0

s 2 4

R 1 6

R D 3 5 8 1 0

1 0 0 K

s 1 0 1

C 1 5 7

W N 2 0 0 1 0

C 1 5 8

0 . 0 1 / 1 0 0

C 1 6 0

C 1 6 1

C 1 6 2

F U S E

C 1 7 3

1 0 0 V

2 0 0 V

C 1 7 4

C 1 7 5

C 1 7 6

C 1 8 9

T 8 A 1 2 5

W Q 2 1 1 1 0

T 4 A L 2 5 0

V V 0 7 1 8 0

s 1 0 2

R 1 9 7

R D 3 5 7 1 0

1 0 K

s 1 0 3

D 1 1 9

W Y 1 6 5 2 0

D 1 2 0

U D Z V 3 6 B

s 1 0 4

R 1 8 6

W W 8 6 3 9 0

W W 8 6 3 2 0

W W 8 6 3 9 0

R 1 9 1

3 3 0

8 2

3 3 0

R 1 9 6

+ 8 . 4 V

7 1 V o v e r

8.94V

12.1V

Q 1 2 1

5 7 1 2 ( T E 1 2 L / Q )

+ 3 . 3 V

R 1 8 0

R 2 3 4

2 0 - 9 0 m A

< 1 W

1 P 4 7

D 1 1 1

1 S S 3 5 2

Q 1 2 9

2 5 m W

D 1 1 2

K T A 1 6 6 1 - Y - R T F / P

4.2V

15V

1 5 V

C 2 8 8

45.4V

n o _ u s e

F 3 A

9.12V

R 1 9 0

3 . 3 K

S G

9.12V

2 N 5 4 0 1 S - R T K / P

9 . 0 4 V

Q 1 3 1

4.2V

45.8V

44V

J 1 0 4

n o _ u s e

14.2V

46.2V

A G N D

J 1 0 1

n o _ u s e

46.9V

J 1 0 3

47.2V

5 k-ohms

–26V

- 2 4 . 2 5 V

10 W

47.8V

Q 1 2 3

C 1 6 6

C 1 6 7

–25.4V

–46.2V

R 1 7 0

- 2 4 . 8 5 V

0 . 1 / 1 0 0

2 2 0

f o r F L

K T A 1 6 6 4 - Y - R T F / P

C B 1 0 3

D 1 1 3

66.1V

D 5 S B A 6 0

V H I

–66.1V

T H 1 0 1

T H M 2

N C P 1 8 X H 1 0 3 J 0 3 R B

S T 1 0 2

R - S

A - S

OUT L

L E F T

T E 1 0 2

T E 1 0 1

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

n o _ u s e

R Y 1 0 2

S P B

R Y 1 0 2

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

S P A

M S P - 1 0 8 V - 0 1 P B S N

1 0 G

T E 1 0 1

T E 1 0 2

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

n o _ u s e

R Y 1 0 3

S P B

T E 1 0 1

S P B

R Y 1 0 3

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

S P A

T E 1 0 1

S P A

M S P - 1 0 8 V - 0 1 P B S N

R I G H T

66.1V

R Y 3

R Y 1

R Y 2

( S P _ B )

63V

( H P )

( S P _ A )

58.7V

Q 1 2 5

Q 1 2 8

Q 1 3 3

2 N 5 5 5 1 S - R T K / P

3.26V

R 1 7 1

3.26V

R 1 7 2

4 . 7 K

3.26V

4 . 7 K

R 1 7 3

4 . 7 K

D G N D

HP OUT

4 P 4 0 0 M M B & C B L

R 1 0 2

H P L

1 P 4 7 0

to MAIN (6)_CB401

R 1 0 3

H P R

W 1 0 2

1 P 4 7 0

MAIN (1)

M A I N

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.

C140, C143 and C149 on MAIN (1) P.C.B.

R-S202/R-S202D

IC203: R5F100JFAFA

16 bit single chip microprocessor

V V 0 7 1 8 0

T 4 . 0 A L 2 5 0 V

V N 5 0 0 0 0

TIMER ARRAY

PORT 0

P00 to P03

Y F 7 6 6 A 0

UNIT (8ch)

Y F 7 6 6

TI00/P00

ch0

TO00/P01

PORT 1

P10 to P17

TI01/TO01/P16

ch1

PORT 2

P20 to P27

TI02/TO02/P17

ch2

(TI02/TO02/P15)

PORT 3

P30, P31

TI03/TO03/P31

ch3

(TI03/TO03/P14)

PORT 4

P40, P41

(TI04/TO04/P13)

ch4

PORT 5

P50, P51

ch5

(TI05/TO05/P12)

PORT 6

P60, P63

V N 5 0 0 0 0

(TI06/TO06/P11)

ch6

TI07/TO07/P41

(TI07/TO07/P10)

ch7

PORT 7

P70, P77

RxD2/P14

(RxD2/P76)

P120

PORT 12

WINDOW

P121 to P124

WATCHDOG

TIMER

P130

PORT 13

P137

LOW-SPEED

12-BIT INTERVAL

ON-CHIP

P140,

TIMER

OSCILLATOR

PORT 14

P146, P147

REAL-TIME

RTC1HZ/P30

CLOCK

ANI0/P20 to

AN17/P27

CODE FLASH MEMORY

RL78

ANI16/P03, ANI17/P02,

A/D CONVERTER

SERIAL ARRAY

Microprocessor

ANI16/P147, ANI19/P120

UNIT0 (4ch)

CORE

DATA FLASH MEMORY

REFE

/P20

RxD0/P11(RxD0/P16)

REFE

/P21

UART0

TxD0/P12(TxD0/P17)

W N 2 0 0 1 0

RxD1/P03

KR0/P70 to

0 . 0 1 / 1 0 0

UART1

KEY RETURN

TxD1/P02

KR7/P77

SCK00/P10

SI00/P11

CSI00

POWER ON RESET/

SO00/P12

POR/LVD

VOLTAGE

RAM

CONTROL

SCK01/P75

DETECTOR

SI01/P74

CSI01

SO01/P73

SCK11/P30

RESET CONTROL

SI11/P50

CSI11

SO11/P51

SCL00/P10

TOOL RxD/P11

ON-CHIP DEBUG

TOOL0/P40

W W 8 6 3 2 0

IIC00

SDA00/P11

TOOL TxD/P12

8 2

SCL01/P75

IIC01

SYSTEM

RESET

SDA01/P74

CONTROL

X1/P121

SCL11/P30

X2/EXCLK/P122

IIC11

HIGH-SPEED

SDA11/P50

ON-CHIP

XT1/P123

SDAA0/P61(SDAA0/P13)

OSCILLATOR

XT2/EXCLKS/P124

SERIAL

INTERFACE IICA0

SCLA0/P60(SCLA0/P14)

VOLTAGE

SERIAL ARRAY

REGC

REGULATOR

UNIT1 (2ch)

BUZZER OUTPUT

PCLBUZ0/P140

RxD2/P14(RxD2/P76)

UART2

(PCLBUZ0/P31),

RxD2/P14(RxD2/P76)

TxD2/P13(TxD2/P77)

PCLBUZ1/P15

INTP0/P137

LINSEL

CLOCK OUTPUT

CONTROL

INTP1/P50

INTP2/P51

SCK20/P15

MULTIPLIER and

SI20/P14

CSI20

CRC

INTP3/P30,

DIVIDER

SO20/P13

INTERRUPT

INTP4/P31

MULITIPLY-

CONTROL

SCK21/P70

ACCUMULATOR

INTP5/P16

SI21/P71

CSI21

INTP0/P140

SO21/P72

DIRECT MEMORY

SCL20/P15

ACCESS CONTROL

INTP6/P74 to

IIC20

INTP11/P77

SDA20/P14

SCL21/P70

BCD

IIC21

SDA21/P71

ADJUSTMENT

IC250: LM61CIZ

Temperature sensor

to POWER

TRANSFORMER

IC102 : NJM2904M

Dual operational amplifier

OUTPUT

- INPUT

+ INPUT

V -

A/B

SPEAKERS

IC1: R1190H033B-T1-FE

Voltage regulator

Thermal Shutdown

OUT

Vref

Inrush

Peak

Short

Current

Protection

Limit

Protection

GND

DELAY

Pin No.

Symbol

Description

OUT

Output Pin

GND

Ground Pin

Chip Enable Pin ("H" Active)

DELAY

Delay Pin (for setting Inrush Current Limit Time)

Input Pin

IC202: BD3491FS-E2

Sound processor with built-in surround sound function

FIL

GND

SDA

SCL

SB1

SB2

BCB1

BCA1

BCA2

50K

VCC/2

C BUS LOGIC

VCC

• Bass

Gain= ±14 dB/2dB step

Surround

• Treble

Gain= ±14 dB/2dB step

Page 46 K6

• Volume

0 dB – -87 dB/1 dB step, -∞, Independent control

• Input Gain

0 dB – +8 dB/2 dB step, 12, 16, 20 dB

Treble/Bass

• Surround

Gain= OFF, Low, Middle, High

Input Gain

Input Selector

50k

SEL2

VOL1

VOL2

TC2

TC1

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 C2185、C2186

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