Yorkville Sound 3400 service manual Right = Chan B, Left = Chan A

-1dB 30Hz

+4dB 55Hz

FILTER

MUST BE BREAK BEFORE MAKE, #3436

S1

1 OUT 2

IN 3

1K

10K:1%

C3

C7

R15

R16

R5

R6

100p

16v

470n

R14

17K8:1%

470R

14K0:1%

C5

RIGHT = CHAN B

6

16v

68n

4M7

R7

33078

7

JB1

C1

R9

R10

R11

5

1/2

U3

2

10K:1%

17K8:1% 17K8:1%

5

C8

C9

2

470p

U1

1/2

BAL_IN

3

1

C6

7

16v

47n

16v 150n

5532

1

3

6

NUTRIX

C2

U1

16v

R17

R18

1

100n

1/2

R12

R13

82K5:1%

1K5

20KHz

470p

33078

C10

+2dB

R1

R2

R3

R4

5K6

7K5

16v

SIG_L

1K

10K:1%

14K0:1%

1R

C21

TO PIN 4 OF 5532

6n8

T8

REF_L

JB2

1

3

5

C4

100n

T7

100p

T6

SIG_R

CH_B_IN

IN = MONO

S

R

T

T5

REF_R

S2

S2

-1dB 30Hz

+4dB 55Hz

NO_GOLD

2

4

6

1

4

T4

+18

OUT

OUT

FILTER

NO_GOLD

2

4

6

2

5

+18

C23

T3

GND

IN

IN

CH_A_IN

S

R

T

3

6

MUST BE BREAK BEFORE MAKE, #3436

S1

4 OUT 5

IN 6

100n

T2

-18

JB3

1

3

5

C13

C17

R33

R34

T1

100p

16v

470n

C15

R32

17K8:1%

470R

C24

2

1K

10K:1%

14K0:1%

16v

68n

33078

4M7

1

-18

100n

JB4

R20

R21

R22

R27

R28

R29

3

1/2

U3

6

10K:1%

17K8:1% 17K8:1%

3

U2

C18

C19

2

C11

1/2

BAL_IN

3

7

C16

1

16v

47n

16v 150n

5532

1

470p

5

2

NUTRIX

U2

16v

R35

R36

C12

2

100n

1/2

R30

R31

82K5:1%

1K5

20KHz

LEFT = CHAN A

470p

33078

C20

+2dB

R25

R26

5K6

7K5

16v

GREEN WIRE TO

14K0:1%

1R

C22

TO PIN 4 OF 5532

6n8

EY2

GND

GROUND STRAP:

R23

R24

C14

100n

18Ga BLACK WIRE

WC1

TO M1011 GND

GND

1K

10K:1%

100p

DATE: SEP/19/94

MODELS:

AUDIO-PRO

SCH ISSUE: 0.00

GND

AP-3400

YORKVILLE

NAME: M1012A.SCH

PCB#&VER: M1012-2.00

TITLE: INPUT_&_FILTER