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Schematic set FCV 220 & FCV 440 Series power amplifiers
1. Preamp driver 2. Preamp driver OTA 3. Power supply interconnects 4. Power supply and fan driver 5. Output stage 6. NexSys preamp driver 7. NexSys power supply 8. NexSys output stage

8

7

6

5

4

3

2

1

R7 Z1 1N5930 R10 R24 C1 0.1/100V R23 1 2 3 4 5 6 7 8 J3 CH A OCTAL 10K/1% D3 1N4148 R22 10K/1% D7 1N4148 R3 NOTE 1 R21 NOTE 2: C3 30pF R14 C2 0.1/100V 1 2 3 4 5 6 BAR1 INPUT BARRIER Z3 1N5359 100/100V Z2 1N5930 VR1 5K R12 6.65K/1% R6 100K C15 100/100V C12 0.47/250V C16 0.1/100V C18 R20 4.7/1W RLY2 T90N5D12-12 D8 1N4148 D2 1N4148 C6 R26 10K/1% 1 2 3 4 5 6 7 8 J4 CH B OCTAL R4 NOTE 1 R28 NOTE 2 R25 NOTE 2 30pF C21 330pF 1 2 D4 1N4148 D6 1N4148 6 5 7 + IC1B NE5532 C4 30pF VR2 5K R1 90.9K/1% C7 0.1/100V R3,R4 NOTE 1: FCV440 = 13.75K/1% FCV220 = 15.1K/1% FCV440 = 27.18K/1% FCV220 = 19.6K/1% FCV440 = 680/10W FCV220 = 520/10W R5 100K C13 0.47/250V R11 6.65K/1% R29 NOTE 3 R30 NOTE 3 C9 15pF R16 100 IC2A STK3152 R9 470 C19 330pF R15 100 SUPPLY GND SUPPLY GND CH B MODULE 100K/1W/2% R19 4.7/1W C17 0.1/100V RLY1 T90N5D12-12 J9 1 2 RELAY CH B OUT
C

470 C24 150pF 13 12 10

2.7K/2W

D1 1N4148

NOTE 2

C22 330pF 30pF 15

D

C5

R17

100

+ C20 330pF 11

8

C

+ 8 7 5
B

B

R27 SW1 MSSA2350 10K/1%

3 4 9 6

R21,R24,R25,R28

NOTE 2:

A

R29,R30

NOTE 3:

R7, R8 CHANGED FROM 4.7K TO 2.7K ON 4/8/92

8

7

6

+

3

-

D5 1N4148

2

1 IC1A NE5532

R2 90.9K/1% C8 0.1/100V

14 IC2B STK3152

1 2 3 4 5 6 7 8 J8 CH A MODULE CH A OUT

D

4

C10

15pF

R18

100 R8 2.7K/2W

CH A MODULE

C23 150pF

R13

100K/1W/2%

1 2 3 4 5 6 7 8 J7 CH B MODULE

CREST AUDIO INC. 150 Florence Avenue Hawthorne, NJ 07506 Title PREAMP/DRIVER FCV220/FCV440 Size B Date:
5 4 3

A

Document Number 21B1241 Thursday, May 18, 2000
2

Rev Sheet 1
1

of

1

8

7

6

5

4

3

2

1

D

D

R10 R24 C1 1 2 3 4 5 6 7 8 J3 CH A OCTAL R22 10K/1% D7 1N4148 J1 CH A BAR1 1 2 3 4 5 6 INPUT BARRIER
C

470 C24 150pF 13 12 10 1 2 3 4 5 6 7 8 J8 CH A MODULE CH A OUT

+24V C22 330pF

0.1/100V

NOTE 2

R17

100

D1 1N4148 R23 10K/1% D3 1N4148 D5 1N4148 8

C5 +24V

30pF R6 C30 CP 1 220pF 220K C29 3 2

8

15 1 IC2A OPA2604 R2 C12 90.9K/1% C8 0.1/100V 1/63V R44 3.3K R45 6.8K C14

+ C20 330pF 11

+ 4

14 IC4B STK3152

2 3

+ 4

C10

15pF

R18

100

IC1A OPA2604 JP1 C31

-24V

R12 6.65K/1% Z1

R14 100K/1W/2% R19 4.7/1W T90N5D12-24 J9 JP? 1 2 3 HEADER 3 26-48-1036 0.1/100V C18 R20 4.7/1W R9 470 RLY2 T90N5D12-24 C23 150pF C19 330pF R15 100 3 4 9 6 RLY1

CH A MODULE

R3 NOTE 1

R21 NOTE 2:

C3 30pF CP C2 0.1/100V -24V

VR1 5K

R34 3.3K 10/16V/BP +24V R7 R35 750 100/100V R36 16 15 14 13 12 11 10 9 200/1W

1N5353 C15 R39 10K

C17 0.1/100V

+24V

R42 47K Z2 C16 100/100V

CH B OUT

C

ANALOG ANALOG ATTENUATE CH ATTENUATE CH

GND GND A B +15 V DATA CH A DATA CH B +24V -24V DIGITAL GND DIGITAL GND

1 2 3 4 5 6 7 8 9 10 11

D2 1N4148 C6 +24V R26 10K/1% D4 1N4148 -24V R27 SW1 MSSA2350 10K/1% R28 NOTE 2 C4 30pF D8 1N4148 D6 1N4148 R25 NOTE 2 6 5 30pF

750 R38 6.8K R37 1.5K C28 7 IC1B OPA2604 VR2 5K JP2 220pF R5 220K

IC3 NE5517AN R40 10K R43 47K 1 2 3 4 5 6 7 8

1N5353 R8 200/1W

CH B MODULE

SUPPLY GND SUPPLY GND

+

-24V 5 6 + 7 IC2B OPA2604 R41 1.5K

J6 26-48-1116

C21 330pF 1 2 IC4A STK3152

+ 8 7 5

1 2 3 4 5 6 7 8 J4 CH B OCTAL

R4 NOTE 1

+24V -24V 90.9K/1% R1 C9 15pF R46 4.7K R? 27 OC1 4N25 CH B ATTN R? 27 OC2 4N25 CH A ATTN R32 100K C25 4.7/35V R47 4.7K R33 100K C26 4.7/35V C7 0.1/100V R11 6.65K/1%

R13

100K/1W/2%

R16

100

1 2 3 4 5 6 7 8 J7 CH B MODULE

J2 CH B
B

C13 1/63V -24V

C11 10/16V/BP

B

NOTE 1:

FCV440 = 13.75K/1% FCV220 = 15.1K/1%

NOTE 2: FCV440 = 27.18K/1% FCV220 = 19.6K/1%

A

A

CREST AUDIO INC. 100 Eisenhower Drive Paramus, NJ 07652 Title OTA PREAMP/DRIVER FOR FCV SERIES Size C Date:
8 7 6 5 4 3 2

Document Number 21C1383 Thursday, May 18, 2000 Sheet
1

Rev 00 1 of 1

8

7

6

5

4

3

2

1

D

D

OUTPUT 'A'

PREAMP

OUTPUT 'B'

J2A 1 2 3 4 5 6 7

26-03-4071 J5 1 2 3 4 5 6 7 8 9 10 11

26-03-4020 J9 1 2 7 6 5 4 3 2 1 J2B

C

C

J6 1 2 3 4 5 6 7 8 9 10 11 3 2 1

B

26-03-4111

J4 26-03-4030 J3 7 6 5 4 3 2 1

B

J2 7 6 5 4 3 2 1

POWER SUPPLY

A

CREST AUDIO 100 EISENHOWER DRIVE PARAMUS, NJ 07652 Size A Date:
8 7 6 5 4

A

Document Number 26A1816 Thursday, May 18, 2000
3 2

Rev 01 Sheet 0 of
1

0

8

7

6

5

4

3

2

1

R25 100/2W IC2 LM317
D

J2 5 4 3 2 1 26-48-1055 TEMP SENSOR POWER TEMP SENSOR OUTPUT GROUND A CLIPSPKR LEVEL A (DC PROT)
D

2 Z3 1N5355A C17 10/50V 1

3

J4 R26 2 1 26-48-1025 R43 1K J1 8 7 6 5 4 3 2 1 22-02-2085 CH. A Z1 R21 2.2K J3 1 2 3 4 5 26-48-1055 R44 1K J5 TEMP SENSOR POWER TEMP SENSOR OUTPUT GROUND B CLIPSPKR LEVEL B (DC PROT) A CLIPGROUND A CH. PROTECT+ B CLIPGROUND B CH. PROTECT+ RELAY B RELAY A

D5 1N4148

Q5 MPSA13

D8 1N4148

442/1%

IC1B LM614 7 + 5 6

R28 1K

R29 1K

IC1A LM614 1 D6 1N4148 CH. A R27 100K D7 1N4004 R34 2.2K

3 2

CH. B

R32 23.7K/1%

R30 1K/1%

R31 1K/1%

R33 23.7K/1%

13

4 + -

1N960

CH. B

Z2

R22 2.2K

R41 1.5K
C

1N960

1 2 R39 1.5K R1 10K CH. B D1 R35 2.2K 2N5551 11 12 IC1E LM614 13 R13 330K C18 100/25V R17 22K C14 470/25V R9 10K R7 1K/1% R8 1K/1% R10 10K 8 R14 MAC97 330K C15 470/25V R18 22K TR2 C19 100/25V Z4 1N5920 SEE CHART D4 1N4148 Q1 R15 10K 10 IC1C LM614 1N4148 R11 1K R5 499/1% 9 R6 499/1% R12 1K R4 2.2K CH. A D2 1N4148 Q2 15 14 2N5551 16 + IC1D LM614 R16 10K R36 2.2K R2 10K R40 1.5K R42 1.5K 26-48-1025

FAN DRIVE V+ GROUND

C

R37 47/1W

2N5401 Q3

Q4 2N5401

R38 47/1W

R23 SEE CHART D3 1N4148 Z5 1N5920

TR1 MAC97

B

SW1

SEE CHART

P1 PLUG AC MALE

T1 SEE CHART 3A/MINI BR2 RS202

A

8

7

6

+

R24

B

0.15/400V C1 TO C2+ BR1 BR354W GND TO C2-/C3+ TO C2-/C3+ GND (SEE CHART)

TO C3-

F1 C11 1000/25V

REF

FCV220

FCV440

A

R23,R24 C2,C3 SW1 T1

1.8K/5W 15,000UF/50V 4.00 AMP CREST #22B1297

3.9K/5W 10,000UF/75V 6.00 AMP CREST #22B1295 150 Florence Ave. Hawthorne, NJ 07506 Title FCV220/FCV440 POWER SUPPLY/FAN DRIVER PCB Size C Date: Document Number 21C1230 Thursday, May 18, 2000 Sheet
1

CREST AUDIO INC.

Rev 01 1 of 1

5

4

3

2

8

7

6

5

4

3

2

1

D1 Z1 1N4735A
D

1N4004

R46 10K

R1 NOT USED R3 470 C9 10n/50V R34 Q1 2N5551 15K Q4 2SC2336 R8 10/1W C2 0.1/100V R12 2.2/1W R42 2.2/1W R19 2.2/1W R38 100K Q6 2SC3281 Q8 2SC3281 Q20 2SC3281 2SC3281 Q10 R30 100K R36 274/1% Q18 2N5551 R40 100/1% R32 100K D7 1N4004 L1 R100 Q3 TIP110 R7 100/1W R11 150/1W R14 51/2W R16 4.7/2W R18 0.33/5W R44 0.33/5W R22 0.33/5W R37 R13 2.2/1W R9 10/1W D4 1N4148 Q5 2SA1006 Q7 2SA1302 R45 2.2/1W Q9 2SA1302 R20 2.2/1W Q21 2SA1302 Q11 2SA1302 R39 100K R35 15K 10n/50V C8 R4 Q17 2N5551 -65VNL R24 15K 274/1% R23 100K Q19 2N5401 2N5551 Q13 Q12 2N5551 D6 FR204 C5 0.047/630V GROUND R41 100/1% R25 100K D8 1N4004 2uH OUT 1/2W R28 2.2/2W Q14 2N5401 Q15 2N5401 +65VNL 2N5401 Q16 R31 15K C3 0.1/100V

D

R47 Z2 1N4749A 20K C7 1n/50V

D3 1N4148

C1 100/6.3V D9 1N4148

D5 FR204

C

+ 65 VNL + DRIVE + DRIVE SPEAKER RAIL SPEAKER RAIL - DRIVE - DRIVE - 65 VNL

8 7 6 5 4 3 2 1 J1 INPUT

R10 150/1W R5 1.2K

R15 4.7/2W

R17 0.33/5W

R43 0.33/5W

C

R21 0.33/5W

R6 390

D10 1N4148

VR1 PTC15LB/250

R26 220

B

Q2 2N5401 1n/50V Z3 1N4749A C6 R48 20K R49 Z4 1N4735A D2 10K R2 NOT USED NOTE 1 1N4004 FCV220 = OMIT Q20,Q21 FCV220 = OMIT R42,43,44,45

C4 0.1/100V
B

470

A

TEMP SENSOR POWER TEMP SENSOR OUTPUT TEMP SENSOR GROUND CLIP (-) SPEAKER RAIL

1 2 3 4 5 CLIP/TEMP

2

J2

1

IC2 LM35DP

3

R29 1K

CREST AUDIO INC. 150 Florence Ave. Hawthorne, NJ 07506 Title FCV220/FCV440 OUTPUT STAGE Size B Date: Document Number 21B1294 (REF. PCB # 26B1100) Thursday, May 18, 2000
2

A

Rev Sheet 1
1

of

1

8

7

6

5

4

3

8

7

6

5

4

3

2

1

D9

D10

R24 NOTE 1 D1 1N4148 C22 330pF

R10 470 C24 150pF 13 12 10

1N4004

C1 10/35V/T

1N4004

D

1 2 3 4 5 6 7 8

-RET A GND A DATA +24V +15V +RET +IN -IN

R23 19.6K/0.1% D3 1N4148 R22 19.6K/0.1% D7 1N4148 R21 NOTE 1 C3 30pF D5 1N4148

C5

30pF 15

R17

100

+

C20 330pF

+ 4

1 IC1A OPA2604

R2 90.9K/1% C8 0.1/100V

11

2 3

14 IC2B STK3152

1 2 3 4 5 6 7 8 0C1 R31 220 J8 CH A MODULE CH A OUT

D

J3 CH A OCTAL 1 2 3 4 5 6 A A A B B B GND -IN +IN +IN -IN GND

8

C10

15pF

R18

100 VTL5C6 R14 100K/1/2W/1% R19 RLY1 T90N5D12-12 J9 CH A CH B R33 750 2 1 RELAY CH B OUT
C

CH A MODULE

BAR1 IN BARRIER 10/35V/T

C2

D12 1N4004

VR1 5K

R12 6.65K/1%

4.7/1W C15 100/100V C17 0.1/100V

C

R8 NOTE 1

R6 100K

D11 1N4004

C12 NOTE 1

C14 10/16V/BP

C16 100/100V

0.1/100V C18 R20 4.7/1W RLY2 T90N5D12-12

CH B MODULE

7 6 5 4 3 2 1

J11 26-48-1075

3 4 9 6

A GND A GND A OPTO B OPTO +15V DATA A DATA B +24V -24V D GND D GND SW1 MSSA2350

SUPPLY GND R9 470 D8 1N4148 D2 1N4148 C6 R26 19.6K/0.1% D4 1N4148 R25 NOTE 1 1 30pF C21 330pF C23 150pF R15 100 C19 330pF SUPPLY GND

+

0C2

R32 220 R34

B

R27 -RET D GND B DATA -24V +15V +RET +IN -IN 19.6K/0.1%

D6 1N4148

7 + IC1B OPA2604 5

8 7 5

1 2 3 4 5 6 7 8

R28 NOTE 1

C4 30pF R1 VR2 5K 90.9K/1% C7 0.1/100V

J4 CH B OCTAL

NOTE 1:
REFERENCE DES R21,R24,R25,R28
A

FCV220 38.3K/0.1% 30pF 2.2/1W 0.47UF/250V

FCV440 53.6K/0.1% 30pF

C3,C4,C5,C6 R8 C12,C13

2.2/1W 0.47UF/250V 100 EISENHOWER DR. PARAMUS, NJ 07652 Title PREAMP/DRIVER FOR NEXSYS COMPATIBLE FCV Size B Date: Document Number 21B1703 Thursday, May 18, 2000
2

8

7

6

5

R5 100K

6

2 IC2A STK3152

750 1 2 3 4 5 6 7 8 J7 CH B MODULE

B

VTL5C6 C9 15pF R11 6.65K/1% R16 100 R13 100K/1/2W/1%

C13 NOTE 1

C11 10/16V/BP

CREST AUDIO INC.

A

Rev 02 Sheet 1
1

of

1

4

3

8

7

6

5

4

3

2

1

J7 26-48-1045 1 2 3 4

R52 100R
D

R17 2K2 TEMP SENSOR POWER TEMP SENSOR OUTPUT TEMP SENSOR GND CLIP A IGM A SPKR LEVEL A ANALOG GND
D

8

8

R51 0 D4 1N4001 D1 C2 10/50V IC3 LM317T 3 IN OUT ADJ 2 1 IC4A LM358 R11 47K Z1

R9 4K7 3 2 R31 10K

R10 4K7 3 2

R48 100R 1 IC2A LM358 R12 47K Z2 1N5920 6.2V CH A TEMP C5 10/25V R32 10K

+ 4

C4 10/25V

+ 4

1 2 3 4 5 6 7 J2 26-48-1075 CH A

1N4148 5 6 3 2 1 IC1B LM614 7 + R1 1K R2 1K IC1A LM614 1 D2 Q1 MPSA13 4

+ 13

1N5920 6.2V CH B TEMP R13 2K2 R15 22K R16 22K

1N4148 CH A R7 100K D3 1N4148 R40 2K210 R8

R14 2K2 R18 2K2 D11 1N4148 D10 1N4148

CH B

R3 19K60

R5 1K0

R6 1K0

R4 19K60

442R0 D6 1N4148 D7 1N4148 R19 2K2

C3

0.1/25V

C

R20 Z5 1N5920 R21 20/1W R61 390R D17 1N4001 R59 MJD127 Q3 7 IC4B LM358 R23 5.1K/2W TR1 MAC97A 2K2 + 5 6 R53 100R D5 CH "B" IC1C LM614 10 12 1N4001 R25 18K R27 9 330K R33 1K0 IC1E LM614 13 8 R34 1K0 + CH "A" IC1D LM614 16 + 14 1N4001 R28 330K R26 18K MAC97A TR2 C8 470/25V Z12 1N5920 5 D8 R54 100R 6 + R55 10K R29 1K R37 2K2 R30 1K R62 390R R56 10K R60 2K2 D18 7 IC2B LM358 R24 5.1K/2W J4 1 2 3 26-48-1036 1N4001 Z6 1N5920 D16 1N4148 R22 20/1W 2K2 1 2 3 4 5 6 7 D15 1N4148

TEMP SENSOR POWER TEMP SENSOR OUTPUT TEMP SENSOR GND CLIP B IGM B SPKR LEVEL B ANALOG GND

C

Q2 MJD127

J3 26-48-1075 CH B 1 2 J5 26-48-1025 FAN V+ AUX GND

11 R35 499R0 R36 499R0

15

C6 470/25V

Z11 1N5920

C7 470/25V

RELAY CH A RELAY CH B RELAY GND

C9 470/25V

D14 1N4148 R42 1K/1/2W R45 1K/1/2W D9 1N4148 J1
B

0.15/400V C1

(SEE CHART) TO C2+

SW1 BR1 SEE CHART BR352W

R49 GND 470R/10W R47 TO C2-/C3+ TO C2-/C3+ 50R/10W R41 1K/1/2W R46 1K/1/2W

8 7 6 5 4 3 2 1

CH CH CH CH CH CH CH CH

B B B B A A A A

STATUS STATUS + CLIP LED CLIP LED STATUS STATUS + CLIP LED CLIP LED

B

+ -

+ -

52011-0810

P1 PLUG AC MALE

GND TO C3-

F1

R50 470R/10W

T1 SEE CHART

3A/MINI BR2 RS202 C10 1000/25V Z8 1N5348 Z10 1N5348 C2,C3 SW1 15,000UF/50V 4.00 AMP CREST #22B1297 10,000UF/75V 6.00 AMP Z7 1N5348 Z9 1N5348 REF FCV220 FCV440

1 2 3 4 5 6 7 8 9 10 11 J6 26-48-1115

ANALOG GND ANALOG GND ATTENUATE CH A ATTENUATE CH B +15 V DATA CH A DATA CH B +24 V -24 V DIGITAL GND DIGITAL GND

A

A

D17, D18 ARE R43, R44 ON 7/29/93 SILKSCREEN

T1

CREST #22B1295

CREST AUDIO 100 EISENHOWER DRIVE PARAMUS, NJ 07652 Title FCVNXS.PWR Size C Date:
8 7 6 5 4 3 2

Document Number 21C1666 Thursday, May 18, 2000 Sheet
1

Rev 02 0 of 0

8

7

6

5

4

3

2

1

R1 NOT USED D1 1N4004
D

R3 470 R46 7.5K R47 10K

Z1 1N4742A

+65VNL Z2 1N4749A Q4 2SC2336 Q6 2SC3281 C3 0.1/100V Q8 2SC3281 Q10 2SC3281 R19 2.2/1W R51 2.2/1W Q20 2SC3281
D

C1 100/6.3V C9 C2 0.1/100V D9 1N4148 10n/50V

D3 1N4148

R8 10/1W

Q1 2N5551

R12 2.2/1W

D5 FR204

R5 + 65 VNL + DRIVE + DRIVE SPEAKER RAIL SPEAKER RAIL - DRIVE - DRIVE - 65 VNL J1 INPUT 8 7 6 5 4 3 2 1 R6 390 PTC15LB/250 VR1 1.2K

R55 1.2K

R10 150/1W

R15 4.7/2W

R17 0.33/5W

R52 0.33/5W

R21 0.33/5W L1 R100 2uH OUT 1/2W R54 2.2/2W

Q3 TIP 110 D10 1N4148

R56 1.2K

R7 100/1W Q2 2N5401 C8 10n/50V D4 1N4148

R11 150/1W

R14 51/2W

R16 4.7/2W

R18 0.33/5W

R53 0.33/5W

R22 0.33/5W

R13 2.2/1W R9 10/1W Q7 2SA1302 Q9 2SA1302

R20 2.2/1W

R50 2.2/1W Q11 2SA1302 Q21 2SA1302

D6 FR204

C5 0.047/630V GROUND

C

Z4 1N4742A D2 1N4004 R49 7.5K R2 NOT USED

Z3 1N4749A

Q5 2SA1006

C4 0.1/100V

C

-65VNL R48 10K R4 470

-16V 12

4 5

R30 33.2K/0.5W R38 33.2K/0.5W + HIGH RAIL

3

R24

10K R27 3.32K 8 9 R31 33.2K/0.5W -16V 33.2K/0.5W R35 2.87K R39 Z5 1N5930 - HIGH RAIL EMITTER PNP
B

3

J2
B

TEMP SENSOR POWER TEMP SENSOR OUTPUT TEMP SENSOR GROUND CLIP IGM SPEAKER RAIL GND

1 1 2 3 4 5 6 7

IC2 LM35DP

2

R23 1K 14 IC1C LM339N CLIP DETECTOR +

CLIP/TEMP

1 IC1B LM339N 7 +

R25 10K R44 750K/1% R29 3.74K

13 IC1D LM339N 11 +

CURRENT LIMITER
A A

8

7

+ 10 -

2 IC1A LM339N

-

R26 3.32K

R34 2.87K

R42 2.4K/2W

+16V

R45 750K/1% 6 R32 33.2K/0.5W R40 33.2K/0.5W R28 3.74K D11 1N4148 R36 3.83K EMITTER NPN OUTPUT

D12 1N4148

R37 3.83K R41 R33 33.2K/0.5W

Z6 1N5930 R43 1.5K/5W FCV220 = OMIT Q20, Q21, 3/28/94 R50,R51,R52,R53

CHANGED 33.2K/1W TO 33.2K/0.5W

33.2K/0.5W -16V

5-4-94 CHANGED C6,C7 FROM .001UF/50V TO R55,R56 AT 1.2K.

CREST AUDIO INC. 100 EISENHOWER DR. PARAMUS, NJ Title FCV220/FCV440 NEXSYS OUTPUT STAGE Size C Date:
6 5 4 3 2

Document Number Thursday, May 18, 2000 Sheet
1

Rev 1 of 1