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8 7 6 5 4 3 2 1




R1 R3

1K/2W D1 1N4004 100
D D

LED3
D2 1N4004
CLIP
LED1
D3 1N4004 SIGNAL
Z3

D4 1N4004
1N4733
R5




4


2
27
RELAY B 0C1
RELAY A 8 VR1 R14 3.32K/1%
7 5
SIG GND 5K
A RETURN 6
5




6


1
A SEND
B SEND 4
C
3 CLM5010 C
B RETURN
SIG GND 2
1 TEMP/DC
R12
J2 R4
PREAMP CONN. R11 LED5 2.7K
D5 1N4004 100
1K/0.5W GRN
GROUND
1 LED7
GROUND D6 1N4004
CLIP B+ 2
SIGNAL B 3 R2
CLIP B- 4 LED2
5 1K/2W D7 1N4004 SIGNAL
MUTE B
+20 V. 6 Q1 MPSA75 R7
MUTE A 7
8 100/1W D8 1N4004
CLIP A-
SIGNAL A 9
10




4


2
CLIP A+
B 11 B
GROUND 0C2
12 R15 R6
GROUND VR2 5
13 27
D9 5K
R9 3.32K/1% Z4
J1 1N4004
1N4733




6


1
PWR SUPPLY CONN 2.2K
CLM5010


LED4 CLIP
TEMP/DC 11/22/95 CHANGED R12, R13
R13 AS PER ECO 811R
12/8/92 OC1, OC2 LED6 D10
BECAME VTL5C6 2.7K 1N4004

Q2 MPSA75 R8
CREST AUDIO INC.
100/1W

A 150 FLORENCE AVE. A
R10
HAWTHORNE, NJ 07506
Title
2.2K 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




13
12
R23 C5 30pF R17 100 1
D 10 D
1 2
15
2 10K/1% + 3
3 4
14 C20
4 5




8
D5 -
D3 IC2B 11 330pF
5 6
1N4148 1N4148 2 R2 STK3152
6 - 7
R22 1 90.9K/1%
7 8
3
8 + IC1A
10K/1% NE5532 C8 J8
J3 0.1/100V R18 100 CH A MODULE
D7 C10 15pF




4
CH A OCTAL
1N4148 CH A OUT
2




R3 R8
R21 C3
3 NOTE 1 NOTE 2: 30pF 4.7K/2W
J1 R14
CH A XLR CH A MODULE
Z2 100K/1W/2%
1




C2 1N5930 R19 RLY1
0.1/100V
R12 T90N5D12-12
4.7/1W
1 3.32K/1%
C17 J9
2
3 0.1/100V 1
C15
C 4 100/100V 2 C
5
6 R6 RELAY
100K 0.1/100V CH B OUT
BAR1 Z3
INPUT BARRIER 1N5359 C14 C18
C16
C12 10/16V/BP 100/100V R20
1/63V
4.7/1W CH B MODULE
1
2 RLY2
3 T90N5D12-12
4
5 R9 470 SUPPLY GND
6
C19 SUPPLY GND
J6 D8 D2 330pF
SIG SEND/RET 1N4148 1N4148 C23
150pF R15 1
C6 30pF C21 2
330pF 3




3
4
9
100
R26 R25 6 4
1
1 + 5
2 10K/1% NOTE 2 6
2
3 -
B
4 IC2A 5 BAR2 B
D4 D6 6 STK3152
5 - OUTPUT BARRIER




8
7
R27 1N4148 1N4148 7
6
7 MSSA2350 5 + 1
SW1 IC1B
8 10K/1% NE5532 2
R13 100K/1W/2% 3
J4 4
CH B OCTAL C9 5
R4 R28 6
2




NOTE 1 NOTE 2 C4 15pF R16 100 7
30pF R1 8
3 90.9K/1% R11
3.32K/1% J7
C7 CH B MODULE
J2 0.1/100V
CH B XLR R29 R30
1




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 FA2401 = 44.2K/1% A
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
2N5401
R45
Q28
2N5551 Q2 15K R49
D7 15K
1N4148 2SC2336BQ
R47
R6 Q4 100K
Q18 D5 C7
C1 10/1W 2SC3281 Q6 Q8 Q10 Q12 Q14 Q16 0.1/100V
2SC3281 FR204
100uF/6.3V 2SC3281 2SC3281 2SC3281 2SC3281 2SC3281 2SC3281 Q24
R11 2N5401
R39 100K
2.2/1W R13 R15 R17 R19 R21 R23 Q26
C2
C 0.1uF/100V 2.2/1W 2.2/1W 2.2/1W 2.2/1W 2.2/1W 2.2/1W 2N5401 C
R41 Q20 GROUND
2N5551
100/1% R55 220
R53 L1
R1 R4 R9 R25 R27 R29 R31 R33 R35 R37 R43 270K
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
8 680 150/1W
D9 1N4004
3
4
1




7
6 1N4148 R59
Q1 2 6 OUT
5
2SC3068 9 1/5W
4
3 R2
2 R3 R5 R8 R10 R26 R28 R30 R32 R34 R36 R38 R44 D4 R60
634
7
8
5




1 100/1W 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
J1 LA2500 R42 R54 220
Q21
INPUT 2N5401
D10
100/1% Q27 C5
1N4148 R14 R16 R18 R20 R22 R24
R12 2.2/1W 2.2/1W 2.2/1W 2.2/1W 2.2/1W 2.2/1W 2N5551 0.047/630V
R40 100K
VR1 Q25
2.2/1W Q7 Q9 Q11 Q13 Q15 Q17 2N5551
PTC15LB/100 Q19
Q5 2SA1302 2SA1302 2SA1302 2SA1302 2SA1302 2SA1302 2SA1302
R7 D6
10/1W 2SA1302 R48
100K FR204
Q3 R50
D8 2SA1006BQ R46 15K
1N4148 C6
Q29 0.1/100V
2N5401 15K Q23
2N5551
C8
- 85 V.
0.001/50 C10
0.01/50V
R67 R64
Z3 24K 470
1N5941A
R68 R62
B B
Z4 18K NOT USED
1N5925A


D2 1N4004
ECO # 741A CHANGE R2 TO 634




J2 IC2
3




1 R56
LM35DP 1K
1
2




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
8 7 6 5 4 3 2 1




R25
TEMP SENSOR POWER
1 TEMP SENSOR OUTPUT
100/2W 2 GROUND
3 CLIP A-
IC2
4 CLIP A+
LM317
D
Z3 5 SPKR LEVEL A D
C17 2 3