BOSE 250564 Schematic

8

7

6

5

4

3

2

1

NJM4565MA

+

5

+

2

5

1000pF

7

AOUT1

C63

U3B

C31

6

R11

1

100pF

25K

25K

2

2.2uF

-

_

-

1.000K

3

2

C11

1

U3A

C21

6

3

R51

R35

+

330pF

D5

+

100K

10.0K

-15

BAV99

+15

R31

R32

NJM4565MA

C13

J3

25K

25K

10.0K

10.0K

C61

5

6

20

19

R

100pF

D

+IN1

3

1

C25

2.2uF

U13

D

1

-IN1

330pF

2

1

LD1A

LD1B

LD2A

LD2B

SHLD

R12

4

3

R21

U11

SSM2141S

R

R

3

3

2

+

IN1

OUT1

1.10K

1.000K

CON3

C22

R

330pF

D6

DATA

13

DATA

-15

BAV99

+15

VC_CLK

12

TC9412AF

CLOCK

ENABLE

14

STROBE

DGND1

DGND2

DGND3

RGND2 RGND1

NJM4565MA

21

22

+

5

+

+

IN2

+15

15-

NC1

NC2

NC3

NC4

NC5

NC6

OUT2

7

AOUT2

U4B

C64

6

2.2uF

-

C62

2

5

1000pF

2.2uF

16

11

9

18

7

24

1

23

17

15

10

8

2

1

25K

25K

C32

R52

R36

R13

100pF

2

100K

10.0K

_

-

1.000K

3

2

C12

1

+15

-15

C14

U4A

D

R

R

C23

6

3

100pF

+

R

330pF

D7

+

-15

BAV99

+15

R33

R34

NJM4565MA

J4

25K

25K

10.0K

10.0K

R22

+IN2

3

1

C26

1.10K

1

-IN2

330pF

C

C

R

2

SHLD

R14

1

U12

SSM2141S

3

R

R

3

2

1.000K

CON3

C24

330pF

D8

-15

BAV99

+15

ESD

RFI

Over-

Common

28KHz

2.6Hz

Volume

0.7Hz

20dB

160KHz

Voltage

Mode

LPF

HPF

Control

HPF

Gain

LPF

AUDIO SIGNAL PATH

B

N1C

10K

PEAK1

12

74HC00

B

N1A

3

6

1

+15

DIGITAL ID

G33C1 ID INFO:

+5D

U22D

11

13

10K

C41

U1

U2

U4

U11

U12

U13

CODE = 046 HEX

NOLOAD=0.997V

1

D2

AOUT1

1

8

2

C1

0.1uF

C43

C45

C47

C49

C51

C53

U91

+5D

LOADED=0.907V

D1

-

1

16pF

2

10

16

CODE=0BA HEX

2

7

3

U1A

13

-

1

0.1uF

0.1uF

0.1uF

0.1uF

0.1uF

0.1uF

CLOCK

SER

VCC

1

74HC00

11

+

-

14

3

U2A

3

1

1

DATA

+5D

A

+5A

ENABLE

3

TL074

12

N1B

12

U1D

3

+

TL072

2

ID

2

ENABLE

B

2

U22A

D

D

C44

C46

C48

C50

C52

C54

13

10K

+

3

3

C

AOUT1

TL074

4

4

14

0.1uF

0.1uF

0.1uF

0.1uF

0.1uF

0.1uF

AOUT2

D

R98

R

-15

+5D

3

5

PEAK1

5

E

N/A

6

6

+15

4

N2C

10K

PEAK2

F

ENBAR

4

74HC00

7

7

+5A

5

3

6

PEAK2

G

9

ID

6

N2A

+5D

6

1

8

8

H

QH

CLOCK

5

U22B

10K

C42

U14

U91

1

D4

9

-15

AOUT2

1

8

6

0.1uF

C55

C56

DATA

2

7

C2

D3

J2

R

-

7

6

10

CLK

QH

R99

16pF

15

2

7

5

U1B

9

-

7

0.1uF

0.1uF

ENBAR

INH

8

N/A

J1

D

1

+

-

8

5

U2B

3

SH/LD

GND

9

TL074

74HC00

N2B

U1C

+

10

3

D

D

R

74HC165

D

R

8

VC_CLK

10K

+

U22C

TL072

10

TL074

N1D

N2D

R

PEAK DETECTORS

DECOUPLING

CONNECTORS

ID

VC CLOCK

4

5

4

5

A

A

BOSER ENTEROTMSE 16 AUDIO PROCESSOR

SERVICE MANUAL PART NUMBER 256689

LINE LEVEL INPUT MODULE

PART NUMBER 250564

SHEET 1 OF 1

8

7

6

5

4

3

2

1