Yamaha R-N500 Service Manual page 75

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OPERATION 1/3

9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 0 2 1 2 2

+ 3 . 3 D S P

P 2 4

P 2 5

P 2 6

P 2 7

P 2 8

P 2 9

P 3 0

P 3 1

P 3 2

P 3 3

P 3 4

Q 4 0 0 3

Q 4 0 0 4

P 3 5

P 3 6

G 1 8 I

G 1 7 I

Q 4 0 0 1

Q 4 0 0 2

G 1 6 I

- V P

+ 3 . 3 M

T U N I N G

A M

F M

R 4 0 0 5

R 4 0 0 8

R 4 0 1 0

R 4 0 1 3

R 4 0 1 5

K E Y 1

1 K

1 . 5 K

1 . 8 K

2 . 2 K

F G 1

J 4 0 0 1

K E Y 2

R 4 0 0 6

R 4 0 0 7

R 4 0 1 1

R 4 0 1 4

R 4 0 1 6

1 K

1 . 5 K

1 . 8 K

2 . 2 K

M E M O R Y

I N F O / M O D E

S P A

S P B

C 4 0 0 2 , 4 0 0 3 C o u n t e r m e a s u r e s o f D i s c h a r g e t e s t .

F G 1

Y F 7 3 2

Z H 2 2 7 8 0

O P E ( 1 )

Z H 2 2 7 9 0

Z H 2 2 8 0 0

R S

4 0 0 1 - 4 2 0 0

Y F 7 3 3

Z H 2 2 8 1 0

4 0 1 - 4 2 0

Z H 2 2 8 2 0

Z H 2 2 8 3 0

B G

Z H 2 2 8 4 0

W 4 0 0 1

W 4 0 0 2

F G 1

n o _ u s e

C o u n t e r m e a s u r e s o f D i s c h a r g e t e s t .

★ 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.

V 4 0 0 1

3 0 3 1 3 2 3 3 3 4 3 5 3 6 3 7 3 8 3 9 4 0 4 1 4 2 4 3 4 4 4 5 4 6 4 7 4 8 4 9 5 0 5 1 5 2 5 3 5 4 5 5 5 6 5 7 5 8 5 9 6 0 6 1 6 2 6 3 6 4 6 5

3.3

C 4 0 0 8

0 . 1 / 1 6

C 4 0 1 8

P 8

0 . 1 / 5 0 ( F )

R 4 0 3 3

P 7

P 6

1 0 0 K

C 4 0 1 4

P 5

P 4

2 2 0 / 5 0

P 3

P 2

C 4 0 1 5

I C 4 0 1

P 1

3 3 0 / 6 . 3

C 4 0 1 6

M 6 6 0 0 3 - 0 1 3 1 F P - R

V D D

0 . 1 / 1 6

X I N

C 4 0 1 7

X O U T

R 4 0 2 5

3 6 K

V S S

6 8 P ( S L )

D T F L

C K F L

/ C E F L

/ R E S E T

D G N D

+ 3 . 3 M

R P M 7 2 3 8 - H 9 R

R 4 0 1 9

Remote control

U 4 0 0 1

1 0 K

sensor

D 4 0 0 9

I R

S I R - 5 0 5 S T A 4 7

p r e s e t

R 4 0 2 4

H a n d

R 4 0 1 7

R 4 0 1 8

1 0 0

3 . 3 K

4 . 7 K

D G N D

+ 3 . 3 M

J 4 0 0 2

I C 4 0 2

0.028

D G N D

0.028

R 4 0 2 9

C 2 4 1 2 K ( Q / R / S )

J 4 0 0 3

F R S T

Q 4 0 0 6

3.3

1 0 0

I C 4 0 2

n o _ u s e

R 4 0 3 5

R 4 0 4 0

Q 4 0 0 5

T C 7 4 H C 1 4 A F ( E L )

R 4 0 2 6

1 0 K

1 0

3.3

0.7

4 . 7 K

T C 7 4 H C 1 4 A F ( E L )

+ 3 . 3 M

+ 3 . 3 D S P

R 4 0 2 0

1 0 0 K

D G N D

W 4 0 0 8

t o D i g i t a l

M F 1 1 9 5 0

Page 71

to DIGITAL_CB21

F L

Z A 8 8 9 4 0

5 1 0 4 8

N E T _ R F

3.3/0

6 8 6 9

3.3/0

N E T _ R E

W 4 0 0 6

M F 0 0 9 2 0

F 2

AC3.5

-39.7

- V P

F 1

Page 78

AC3.5

F R S T

to MAIN (1)_CB205

3.3

J 4 0 0 9

D G N D

R M +

0.6

R M -

0.6

W 4 0 0 6

C B 4 0 3

0.6

+ 3 . 3 D S P

C B 4 0 4

M F 0 0 4 1 0

+ 3 . 3 D S P

W 4 0 0 7

3.3

8.3

V O L _ R A

3.3/0

Page 78

V O L _ R B

3.3/0

to MAIN (7)_CB275

D G N D

T o

5 1 0 4 8

M A I N ( 7 )

8.3

OPERATION (9)

X R E B 1 2 5 0 5 P V B 2 5 F

I N P U T S E L E C T O R

8.3

S W 4 2 2

O P E ( 9 )

C O M

R 4 2 1 1

4 7 K

R 4 2 1 2

W 4 0 0 4

C B 4 2 2

+ 3 . 3 D S P

4 7 K

3.3

I N _ R C

3.3/0

I N _ R D

3.3/0

D G N D

P H L

4 P 7 0 M M B & C

M F 4 0 4 0 7

+ 3 . 3 D S P

3.3

S e l e c t o r ( N E T )

X R E 0 1 2 6 P V B 2 0 F I N

K E Y 1

E N T E R

N E T _ R E

-39.5

N E T _ R F

R E T U R N

R 4 0 4 8

1 0 K

+ 3 . 3 M

R 4 0 4 9

1 0 K

I C 4 0 2

V +

1 4

I C 4 0 2

V -

D G N D

T C 7 4 H C 1 4 A F ( E L )

C B 4 0 7

M F 0 0 3 1 0

+ 3 . 3 D S P

W 4 0 0 5

P D _ L E D

Page 78

D G N D

to MAIN (8)_CB276

T o

M A I N ( 8 )

2.9

I C 4 0 2

2.9

1 K

2.9

+ 3 . 3 M S

H a n d

R 4 0 4 4

0.001

S T B Y

/ O N

POWER

indicator

1.5

Q 4 0 0 7

0.04

S T B Y

D T C 0 1 4 E U B T L

Q 4 0 0 8

C 4 0 2 8

D G N D

C 4 0 2 6

0 . 1 / 1 6

C 4 0 2 9

n o _ u s e

D G N D

0 . 1 / 1 6

+ 3 . 3 M

C 4 0 2 2

M F 4 0 3 1 0

C 4 0 2 3

C 4 0 2 4

3.3

1 0 0 P ( S L )

3.3

+ 3 . 3 M S

Page 78

E10

P S W _ D E T

J 4 0 0 6

n o _ u s e

to MAIN (5)_CB274

3.3

T o

1 0 0 P ( S L )

R 4 0 4 6

n o _ u s e

1 0 0

J 4 0 0 7

M A I N ( 5 )

n o _ u s e

D G N D

F G 1

F G

Key detection for A/D port

Key input (A/D) pull-up resistance: 10 k-ohms

OPERATION (1)

0 Ω

Detected voltage value

0 – 0.14 V

at 125 pin

A/D value

0 – 11

(3.3 V=255)

KEY1

ENTER

0 Ω

Detected voltage value

0 – 0.14 V

at 124 pin

A/D value

0 – 11

(3.3 V=255)

KEY2

CLEAR

N O T I C E

( m o d e l )

C A P A C I 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

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

C A P A C I T O R

C A N A D A

T A N T A L U M

C A P A C I T O R

G E N E R A L

N O

M A R K

C E R A M I C

C A P A C I T O R

C H I N A

C E R A M I C

T U B U L A R

C A P A C I T O R

K O R E A

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

C A P A C I T O R

A U S T R A L I A

P O L Y S T Y R E N E

F I L M

C A P A C I T O R

B R I T I S H

M I C A

C A P A C I T O R

E U R O P E

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 I N G A P O R E

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

S O U T H E U R O P E

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

S U L F I D E

F I L M

T A I W A N

C A P A C I T O R

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 4 2 6 1

J K 4 2 6

1 K

R 4 2 6 3

1 P 4 7 0

PHONES

R 4 2 6 4

1 P 4 7 0

INPUT

G N D

Page 73

Page 74

to DIGITAL_CB61

to DIGITAL_CB952

t o D I G I T A L

F G

M B 2 0 4 3 2

P N 4 0 1

S W 4 1 7

n o _ u s e

C O M

R 4 0 5 0

4 7 K

R 4 0 5 1

4 7 K

SELECT

PUSH-ENTER

D G N D

F G

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

s 4 3 1

R 4 3 3 7

R D 3 5 4 4 7

R 4 3 3 8

4 7

s 4 3 2

C 4 3 4 1

C 4 3 4 2

s 4 6 1

J 4 6 0 3

s 4 6 2

C 4 6 0 7

s 4 6 6

R 4 6 5 9

V 8 0 7 0 0 0

V 8 0 7 0 3 0

R 4 6 6 0

1 P 1 . 0

1 P 1 0

s 5 4 1

F 5 4 0 2

W Q 2 1 1 1 0

8 A 1 2 5 V

s 5 4 2

C 5 4 0 1

W J 3 6 1 2 0

W J 3 6 1 8 0

C 5 4 1 2

0 . 0 4 7 / 4 0 0

0 . 0 2 2 / 6 3 0

s 5 4 3

C 5 4 0 7

W W 7 6 6 0 0

W W 7 6 6 1 0

2 2 0 / 2 2 0

1 5 0 / 4 0 0

s 5 4 4

R 5 4 1 8

R D 3 5 6 1 2

R D 3 5 6 2 7

R D 3 5 6 4 7

1 . 2 K

2 . 7 K

s 5 4 5

C 5 4 1 1

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

IC401: M66003-0131FP-R

18 digit 5 x 7 segment VFD controller/driver

receive

SCK

circuit

SDATA

+ 1 kΩ

+ 1.5 kΩ

+ 1.8 kΩ

+ 2.2 kΩ

+ 3.3 kΩ

+ 4.7 kΩ

XIN

generator

XOUT

0.16 – 0.41 V

0.43 – 0.7 V

0.71 – 1 V

1.01 – 1.27 V

1.28 – 1.55 V

1.57 – 1.85 V

1.86 – 2.14 V

12 – 32

33 – 54

55 – 77

78 – 98

99 – 120

121 – 143

144 – 165

RETURN

TUNING

PRESET

RESET

Vcc1

+ 1 kΩ

+ 1.5 kΩ

+ 1.8 kΩ

+ 2.2 kΩ

Vcc2

Vss

0.16 – 0.41 V

0.43 – 0.7 V

0.71 – 1 V

1.01 – 1.27 V

1.28 – 1.55 V

12 – 32

33 – 54

55 – 77

78 – 98

99 – 120

MEMORY

DISPLAY

DIMMER

SPEAKERS A

SPEAKERS B

R-N500

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

OPERATION (10)

O P E ( 1 0 )

4 2 6 1 - 4 2 7 0

4 2 6

S T 4 2 6

H e a d P h o n e

C B 4 2 6

3.3

H P _ N _ D E T

R 4 2 6 5

H P L

0.03

1 K

Page 78

H P E

to MAIN (1)_W2004

0.03

H P R

HP_L

H P E

P H L

Z C 8 9 0 6 0

OPERATION (11)

O P E ( 1 1 )

4 2 7 1 - 4 2 8 0

4 2 7

C 4 2 7 2

1 0 0 0 P ( B )

(USB jack)

F G

R S

B G

R D 3 5 6 2 2

4 7

2 . 2 K

U S 0 6 2 2 2

2 2 0 P ( S L )

V N 5 0 0 0 0

J I S C 3 1 0 1

U S 0 6 4 1 0

0 . 0 1 ( B )

V 8 0 7 0 3 0

1 P 1 0

V V 0 7 1 8 0

4 A 2 5 0 V

W J 3 6 1 8 0

0 . 0 2 2 / 6 3 0

W Q 8 5 2 5 0

6 8 / 4 0 0

R D 3 5 7 1 0

R D 3 5 7 1 5

R D 3 5 7 4 7

R D 3 5 8 1 0

4 . 7 K

1 0 K

1 5 K

4 7 K

1 0 0 K

W Q 9 0 2 2 0

2 2 0 0 P / 2 5 0

IC402: TC74HC14AF

Hex schmitt inverter

Display code

VCC

CGROM

RAM

SEG00

(8-bit x 60)

(35-bit x 166)

Segment

SEG25

Code

output

write

SEG26

circuit

CGROM

dot data

SEG34

Serial

data

write

(35-bit x 16)

Code/

command

SEG35

control

circuit

DIG11/

SEG42

DIG12/

SEG41

GND

Segment/

code

DIG13/

select

Digit

SEG40

select/

DIG14/

output

SEG39

Clock

timing

Display

clock

circuit

DIG15/

controller

scan pulse

SEG38

DIG16/

SEG37

DIG17/

SEG36

DIG00

Digit

output

circuit

DIG10

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Yamaha R-N500 Service Manual page 75

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