Crest Audio 21 c 0983 Service Manual

8

D D

7

6

5

4

3

2

1

D1 1N4004

Z1

1N5925A

Z2
1N5941A

0.001/50V

18K

R66

24K

C9

2N5551

R65

C1
100uF/6.3V

C C

INPUT

8
7
6
5
4
3
2
1

J1

D9

1N4148

D10

1N4148

2SC3068

PTC15LB/100

0.001/50

C2

0.1uF/100V

R1

680

Q1

R2

634

VR1

Q29

2N5401

C8

R67

Z3

B B

1N5941A

Z4

1N5925A

24K

R68

18K

D2 1N4004

Q28

1N4148

2
9

IC1

LA2500

D7

NOT USED

341

785

NOT USED

R61

C11

0.01/50V

6

100/1W

D8

1N4148

C10

0.01/50V

R62

R3

R63
470

Q2
2SC2336BQ

R6

10/1W

R4

150/1W

R5

150/1W

R7

10/1W

Q3
2SA1006BQ

R64

470

ECO # 741A CHANGE R2 TO 634

Q4
2SC3281

R11

2.2/1W

R8
51/2W

R12

2.2/1W

Q5
2SA1302

R9
30/2W

R10
30/2W

Q6
2SC3281

R25

0.33/5W

R26

0.33/5W

Q7
2SA1302

R13

2.2/1W

R14

2.2/1W

Q8
2SC3281

R27

0.33/5W

R28

0.33/5W

Q9
2SA1302

R15

2.2/1W

R16

2.2/1W

Q10
2SC3281

R29

0.33/5W

R30

0.33/5W

Q11
2SA1302

R17

2.2/1W

R18

2.2/1W

Q12
2SC3281

R31

0.33/5W

R32

0.33/5W

Q13
2SA1302

R19

2.2/1W

R20

2.2/1W

Q14
2SC3281

R33

0.33/5W

R34

0.33/5W

Q15
2SA1302

R21

2.2/1W

R22

2.2/1W

Q16
2SC3281

R35

0.33/5W

R36

0.33/5W

Q17
2SA1302

R23

2.2/1W

R24

2.2/1W

Q18
2SC3281

R37

0.33/5W

R38

0.33/5W

Q19
2SA1302

R39 100K

R41

100/1%

R42

100/1%

R40 100K

Q22

2N5401

R45

15K

R47

100K

R43
100/1%

R44
100/1%

R48
100K

R46

Q23

15K

2N5551

Q20
2N5551

Q21
2N5401

R49

15K

Q24
2N5401

R53
270K

Q26
2N5401

R55 220

D3
1N4004

D4
1N4004

FR204

D5

C7

0.1/100V

1/5W

L1

2uH

R59

R60

2/5W

R54 220

Q27
2N5551

Q25
2N5551

R50
15K

FR204

D6

0.047/630V

C6

0.1/100V

C5

+ 85 V.

GROUND

OUT

- 85 V.

J2

1
2
3
4
5
6
7

IC2

32

1

LM35DP

R56
1K

CLIP/TEMP

A A

CREST AUDIO INC.

150 Florence Ave.
Hawthorne, NJ 07506
Title

FA1201/FA2401 OUTPUT STAGE

Size Document Number Rev

21C0983

C

8

7

6

5

4

3

Date: Sheet of

2

1 1Thursday, January 24, 2002

1

1