Crest Audio FA-1201 Schematic

8

7

6

5

4

3

2

1

R1

R3

D

1K/2W

D1

1N4004

100

D

LED3

D2

1N4004

CLIP

D3

1N4004

LED1

Z3

SIGNAL

1N4733

D4

1N4004

R5

4

2

27

RELAY B

8

VR1

R14

3.32K/1%

0C1

RELAY A

5

7

SIG GND

5K

6

A RETURN

5

A SEND

6

1

4

C

B SEND

CLM5010

C

3

B RETURN

2

SIG GND

1

TEMP/DC

R12

J2

R4

PREAMP CONN.

R11

LED5

2.7K

D5

1N4004

100

GRN

1K/0.5W

GROUND

1

LED7

GROUND

D6

1N4004

2

CLIP B+

R2

3

SIGNAL B

4

LED2

CLIP B-

D7

1N4004

MUTE B

5

1K/2W

SIGNAL

R7

+20 V.

6

Q1

MPSA75

7

MUTE A

100/1W

D8

1N4004

8

CLIP A-

9

SIGNAL A

10

4

2

CLIP A+

B

11

B

GROUND

R15

0C2

R6

12

VR2

GROUND

5

13

D9

27

R9

5K

Z4

3.32K/1%

J1

1N4004

6

1

1N4733

PWR SUPPLY CONN

2.2K

CLM5010

TEMP/DC

11/22/95 CHANGED R12, R13

LED4

CLIP

R13

AS PER ECO 811R

12/8/92 OC1, OC2

LED6

2.7K

D10

BECAME VTL5C6

1N4004

Q2

MPSA75

R8

100/1W

CREST AUDIO INC.

A

R10

150 FLORENCE AVE.

A

HAWTHORNE, NJ 07506

2.2K

Title

FA601/901/1201 DISPLAY

Size

Document Number

Rev

A

21A1003

Date:

Thursday, January 24, 2002

Sheet

0

of

0

8

7

6

5

4

3

2

1

8

7

6

5

4

3

2

1

R7

Z1

1N5930

4.7K/2W

R10

470

R24

D1

NOTE 2

C24

C1

0.1/100V

1N4148

C22

150pF

330pF

D

R23

C5

30pF

13

12

10

R17

100

1

D

1

15

2

2

10K/1%

+

3

3

14

C20

4

4

D3

D5

8

-

11

5

5

IC2B

330pF

6

6

1N4148

1N4148

2

-

1

R2

STK3152

7

7

R22

3

90.9K/1%

8

8

+

IC1A

C8

J8

J3

10K/1%

NE5532

D7

4

0.1/100V

C10

15pF

R18

100

CH A MODULE

CH A OCTAL

1N4148

CH A OUT

2

R3

R21

C3

R8

NOTE 1

3

NOTE 2:

30pF

4.7K/2W

J1

R14

CH A XLR

CH A MODULE

Z2

1

C2

100K/1W/2%

1N5930

R19

RLY1

0.1/100V

T90N5D12-12

R12

4.7/1W

1

3.32K/1%

C17

J9

2

0.1/100V

3

C15

1

C

4

100/100V

2

C

5

R6

RELAY

6

CH B OUT

BAR1

Z3

100K

0.1/100V

C14

C18

INPUT BARRIER

1N5359

C16

C12

10/16V/BP

R20

100/100V

1/63V

4.7/1W

CH B MODULE

1

2

RLY2

3

T90N5D12-12

4

R9

470

SUPPLY GND

5

6

C19

SUPPLY GND

D8

D2

J6

330pF

SIG SEND/RET

1N4148

1N4148

C23

150pF

R15

1

C6

30pF

C21

2

R26

R25

330pF

3 4 9

6

100

3

1

4

1

+

5

2

10K/1%

NOTE 2

2

6

B

3

IC2A

-

5

BAR2

B

4

D4

D6

6

5

-

7

STK3152

8 7

OUTPUT BARRIER

R27

1N4148

1N4148

6

5

7

SW1

MSSA2350

+

IC1B

1

8

10K/1%

NE5532

R13

100K/1W/2%

2

J4

3

4

CH B OCTAL

R4

R28

C9

5

2

C4

6

NOTE 1

NOTE 2

15pF

R16

100

7

30pF

R1

3

8

90.9K/1%

R11

J7

C7

3.32K/1%

J2

CH B MODULE

CH B XLR

0.1/100V

R29

1

R30

NOTE 3

NOTE 3

NOTE 1:

FA601 = 13.3K/1%

FA901 = 12.7K/1%

FA1201 = 12.4K/1%

FA2401 = 12.4K/1%

NOTE 2:

FA601 = 30.1K/1%

R5

FA901 = 36.5K/1%

C13

C11

100K

FA1201 = 40.2K/1%

1/63V

10/16V/BP

A

A

FA2401 = 44.2K/1%

CREST AUDIO INC.

NOTE 3:

FA601 = 680/10W

FA901 = 820/10W

150 Florence Avenue

FA1201 = 1K/10W

Hawthorne, NJ 07506

Title

PREAMP/DRIVER FOR FA SERIES

Size

Document Number

Rev

B

21B0982

Date:

Thursday, January 24, 2002

Sheet

1

of

1

8

7

6

5

4

3

2

1

8

7

6

5

4

3

2

1

D

D

D1

1N4004

R65

R61

Z1

18K

NOT USED

1N5925A

R66

R63

Z2

24K

470

1N5941A

C9

C11

+ 85 V.

0.001/50V

0.01/50V

Q22

R45

2N5401

Q28

2N5551

D7

Q2

15K

R49

15K

2SC2336BQ

1N4148

R47

R6

Q4

Q18

100K

D5

C7

C1

10/1W

2SC3281

Q6

Q8

Q10

Q12

Q14

Q16

FR204

0.1/100V

100uF/6.3V

2SC3281

2SC3281

2SC3281

2SC3281

2SC3281

2SC3281

2SC3281

Q24

R11

2N5401

R39

100K

C2

2.2/1W

R13

R15

R17

R19

R21

R23

Q26

C

0.1uF/100V

2.2/1W

2.2/1W

2.2/1W

2.2/1W

2.2/1W

2.2/1W

R41

Q20

2N5401

C

GROUND

2N5551

100/1%

R55

220

L1

R53

R1

R4

R9

R25

R27

R29

R31

R33

R35

R37

R43

270K

8

D9

680

150/1W

30/2W

0.33/5W

0.33/5W

0.33/5W

0.33/5W

0.33/5W

0.33/5W

0.33/5W

100/1%

D3

2uH

3 4 1

1N4004

7

1N4148

R59

6

Q1

2

6

OUT

5

2SC3068

9

1/5W

4

3

R2

R3

R5

R8

R10

R26

R28

R30

R32

R34

R36

R38

R44

D4

R60

2

634

1

7 8 5

150/1W

51/2W

30/2W

0.33/5W

0.33/5W

0.33/5W

0.33/5W

0.33/5W

0.33/5W

0.33/5W

100/1%

1N4004

2/5W

IC1

100/1W

J1

LA2500

R42

Q21

R54

220

INPUT

D10

2N5401

100/1%

Q27

C5

1N4148

R14

R16

R18

R20

R22

R24

2N5551

0.047/630V

R12

2.2/1W

2.2/1W

2.2/1W

2.2/1W

2.2/1W

2.2/1W

R40

100K

VR1

Q25

2.2/1W

PTC15LB/100

Q7

Q9

Q11

Q13

Q15

Q17

Q19

2N5551

2SA1302

2SA1302

2SA1302

2SA1302

2SA1302

2SA1302

R7

Q5

2SA1302

D6

10/1W

2SA1302

R48

FR204

Q3

100K

R50

D8

2SA1006BQ

R46

15K

C6

1N4148

Q29

Q23

0.1/100V

2N5401

15K

2N5551

0.001/50

C8

- 85 V.

C10

0.01/50V

R67

R64

Z3

24K

470

1N5941A

R68

R62

B

Z4

B

18K

NOT USED

1N5925A

D2

1N4004

ECO # 741A CHANGE R2 TO 634

J2

1

3

IC2

R56

LM35DP

1

2

1K

2

3

4

5

6

7

CLIP/TEMP

A

A

CREST AUDIO INC.

150 Florence Ave.

Hawthorne, NJ 07506

Title

FA1201/FA2401 OUTPUT STAGE

Size

Document Number

Rev

C

21C0983

1

Date:

Thursday, January 24, 2002

Sheet

1

of

1

8

7

6

5

4

3

2

1