Carvin B-1500 Schematic

+15VDC

GND

-15VDC

25V FET

H10.A
H10.B
H10.C
H10.D

22µF

+

22µF

+15VDC

-15VDC

-15VDC

EFFECTS

thru

25V FET

4.7K

R65R61

4.7K

C37

39pF

1M

R119

6

–

A3.B

+

5

2.2K*

R27

R10

10K

7

0.22µF/63v
C5

Q13

C19

22µF

R28

1M

R5

22K*

R6

39pF*

C3

470K*

R41 R43

3.3K 3.3K

0.0047µF

MID

4.7K

SUB BASS

0.047µF

1M

R19

0.22µF/63v

C20a

.01µF

cw

B50K

P16

C22

cw

B50K

P13

H6.A

input

H6.B

a gnd

H6.C
H6.D

AGND

thru

C1

R52

10K

22µF

C26

R53 R57

+

C20

R42

10K

C63

C22athru

0.1µF

R47R33

4.7K

C24a

C24

C40

39pF

R46

1M

47K

2

–

A3.A

+

3

33K 33K

D33

R20

1

INPUT

H5.A
H5.B
H5.C
H5.D
R23

1M

MUTE-

J11

1K

R8

MASTER

Q17 Q16

R55

R117

47K 47K

EFF -

R83
47K

C28C27

1M

.01

.047µF

R118

P11

B50K

1M

2

3

POWER

C43

39pF

–

A1.A

+

R109

10K

D4

R58

R56

EFF +

cw

MASTER VOLUME

R92

1

10K

10K

22µF

22µF

39pF

C47

C48

R68

10K

A5.A

1

C46

+

+

C36

MUTE-

6

A1.B

5

+15VDC

EFF -

EFF

D5

R110

-15VDC

GRN

MUTE

RED

2

–
+

3

C29

39pF

D.I.PRE

120pF

R98

10K

–

7

+

10K

R80

10K

R71

Q8

R11

47K

C6

R9

.01

1M

+15VDC

Protect

10K

EFF +

MUTE-

D6

R111

10K

R7

AGND

100Ω

R67

10K

100K

R81

39pF

C41

6

–

A5.B

7

+

5

+15VDC

-15VDC

AGND

D11

Red

Clip 1

AGND

Yel

R130

4.7K

-15VDC

+15VDC

D3

R88

6.8K

R93
1K

+

C45

C34

R1

365K

C50

R21

100K

R152

4.7Ω

R153

4.7Ω

1µF

+

R89

R90

10K

150K

1M

R122

R3

10K

YEL

D1

100K
R114

C55

39pF

2

–

A2.A

+

3

AGND

Q18

R106

1K

n/u

C54

DRIVE

+15VDC

passive/active

S1.B

S1.A

1

+

C57
22µF

22µF

470K

+

R126

22K*

C52

1µF

C12

+
+

C58

1µF

R123

1K

cw

B100K

R40

C17

22µF

+

C59

22µF

R14

365K

+

Q12

R127
22K*

P12

R38

4.7K*

R75 R87

4.7K

TREBLE

4.7K

LOW MID

1M

R115

+

C61

22µF

+
C53

R131

150K

R72

6.8K

0.0022µF

1µF

560pF

25V FET

P18
B50K

C35a

0.022µF

C35

cw

B50K

P15

R97

15K*

C39a

0.001µF

cw

C18a

C18

R31

R124

1MΩ

6.8K*

+

C49

1µF

Q19

+

22µF

C67

R95
10K

.022µF

C68

R116

6.8K

C39

C38a C63a

R77

15K

C38

R79

47K

R125
10K*

INPUT CLIP

4.7K

R86R76

4.7K

C15

39pF

1M

R15

6

–

A2.B

+

5

R121

C51

365K

n/u

+

1µF

+15VDC

D2

R24

RED

470Ω

Q10

HI MID

C30

22µF

BASS

7

C16

R25

100K

R26

22K

C33a

0.0022µF

R60 R74

cw

4.7K
P17

B50K

0.0022µF

C31a

0.047µF

cw

4.7K
P14

B50K

C23a

0.01µF

C23

1M

R18

R132

15K*

D.I.PRE

100K

R99

C33

C32a

R62

2.2K

C32

C31

R64

47K

2

1

13

14

H11A.I

H11A.G

H11A.D

H11A.C

H11A.B

H11A.A

H2A.H

H2A.G

H2A.F

H2A.E

H2A.D
H2A.C
H2A.B
H2A.A

A8.A

A8.B

A8.C

A8.D

H11A.J

H11A.H

10K
R91

R94

4

10K

–
+

5
6

–
+

7
10

–
+

11
8

–
+

9

SEND

RETURN

AMP2 -

AMP2 +

clip

protect

-15VDC
GND
GND
+15VDC

R112

47K

-15VDC

R113

10K

H11B.J

BAL GND

H11B.I

H11B.H

H11B.G

H11B.D

H11B.C

H11B.B

H11B.A

GND R

BAL GND

S3.A S3.B

R96

10K

MUTE

S2.A

BAL GND

R70

100Ω

GND R

R32

10K

+15REAR

-15REAR

FOOT SW

10K

R108

H11B.F

H11B.E

10K

R39

C65

39pF

2

–

A7.A

1

+

3

39pF

R13

C60

39pF

8

+15REAR

–

A7.B

7

+

4

-15REAR

D.I. PRE-POST

C56

39pF

MUTE REAR

10K

Q5

6

5

GND R

DIRECT LEVEL

P1

cw

B50K

C14

39pF

6

–

A4.B

7

+

5

R85

10K

C44

2

3

A4.A

–
+

J70

R120
33K

R1110

8

4

SPKR GND

10K
R50

1M

R22
470Ω

R84
10K

39pF

+15REAR

1

-15REAR

22µF

C62

10K

R36

100K

22µF

R1108

+

470Ω

470Ω

+

C42

C7

R34

470Ω

R54

R51

0.1µ

+

SPKR GND

TUNER

EFF SEND

EFF RETURN

R1111

47K

R1109

10K

Q6

DIRECT

2

3

C66

+

22µF

R37
100K

J71

J72

MUTE REAR

J75

1

SPKR GND

GND R

J73

-15REAR

S5.A

S5.B

GND LIFT

100Ω
R35

.001µF

C8

SPKR GND

H11A.F

H11A.E

S2.B

R49

10K

10K

R66

C25

10K

R136

10K

R12

R82
10K

S4.A

S4.B

4. ADDED AS SECONDARY OPERATION.

2. ALL CAPACITORS IN MICORFARADS, EXCEPT AS NOTED.

1. ALL RESISTORS IN OHMS
NOTES: UNLESS OTHERWISE SPECIFIED.

12340 World Trade Drive
San Diego, CA 92128

ARVIN

C

[phone]
FAX [phone]

B1500

System Master

DRAWN BY:

GEORGE DREYER

APPROVED:

PCB

30-41500

NO:

80-40500

ASSY.

80-41500

NO:
REVISED BY:

E. PETERSEN

CHANGES FOR LR400 ASSEMBLY: 8-00400

1. Add Q11x0, Q2x10 (Type: MJL 21194).

2. Add Q114, Qx4 ( Type: MJL 21193).

R04

22Ω 1W1%

R03

22Ω 1W1%

R02

22Ω 1W1%

R01

22Ω 1W1%

L100

QC1

1.5µH

2+

J7

2-1+1-

SPKR GND

DATE:

DATE:

REV:

REV:

DATE:

2+

001
001

J5

2-1+1-

19DEC01

C

05DEC03

SPK1J9SPK1

J8

Changes from Assembly Rev(?).

1. xx.

TOOLING HOLES

STD7

STD8

J12

SPK1

35V

D506

1000

H1A.3

C507

K100

+15VAMP

-15VAMP

C10

R317

7

22K

R323

27K

OUTPUT1

5550

-24V

-24V

R324
10K

+

R321

5.6K

Q2

1K
R318

D16

2N5400

FAN GND

C313

22

C317

150K smt 1/4w

MJD340

Q301

22Ω 5W Vert.

RELAY+

Q303

short circuit protection

D111

R320
10K

1N914

.01µ

D25

R232

+

22uF

C106

C13

.1µF

FAN GND

R335

R319
33K

DC protection

D26

220K
R228

THERMAL DIODE

7912 -12V

Q7

5550

1W

22Ω

R332

R333

22Ω

Q15

CURLIM

R227220K

R226

1W

47Ω

C2

.1µF

FAN GND

2N5400

FAN GND

QC1B

-15VAMP

3.3K

Q14

D29

H1.A
H1.B

FAN GND

R59

1N914

R178
100K

Q127
5401

C181

.01

R197

5Ω 5W Vert.

C121

.047µF

CLEAN-1

OUTPUT1

R179

100K

+15VAMP

TIP31C NPN Flat

+

CURLIM

R329

3.3K

Q3

R211

+15VAMP

R209

D17

68K

+

1

C318

22

D310

7

R331
100K

D311

smt 1N914

3.3K

R327
22K

A18.A

6

–

A18.B

+

5

+15VAMP

–
+1

R322
470K

8

4

2

3

.1µF

R333AR333B

R330

Q302

R325

1K

555

D312

1N914

+15VAMP

R311

68K

6

–

A20.B

+

5

R312

1.5K

thermal protection

+15VAMP

R210

R314

150

15k

8

2

+15VAMP

–

A20.A

+

-15VAMP

3

R315

4

0

470

R138

68K

C176

+15VAMP

120pF

R139

4.7K

R140

+

A17.B

–

C177

120pF

R135

100Ω

470Ω

R137

7

1K

D106

1N914

D107

1N914

R141

4.7K

-15VAMP

+

R133

5

2.2K
6

R134

68K

D102

D103

+

C64

1µF

+

C70

1µF

R142

R145

R146

R222

R223

100

R143
1K

R144
1K

Q103
350

Q102

100

Q104

MJE15033

340

R147
680Ω

Q106

TIP31

R148
150Ω

P101

Q4

Q105

MJE15032

R149

R224

R225

100

100

100

1K

1K

Q107

100

C182

680

.047µF

C180

R150
5Ω

5W

R151

TIP31

5Ω

5W

C184

680

B500 USES THE FOLLOWING DEVICES:
21194- Q107, Q109, Q209, Q222
21193- Q111, Q113, Q211, Q213
R150, R151 (5Ω )
R161, R163, R251, R261, R263, R288 (0.33Ω)

R155
.33Ω

Q112

Q111

5W

Q123

R189

Q109

R161

R163

Q113

XJW21194 NPN

Q122Q117

Q124Q119

R188R183

R190R185

H9.2
H9.1

Q207

R250

R251

Q211

MJL21193

Q209

Q213

R261R263

Q222Q217

R288R283

Q224Q219

R290R285

V+

D109

V-

D108

UF5404 400V 3A

R177

5.6K

R176

22K

THERMAL DIODE

R101

R107

5550

H2B.E

H2B.H

H2B.F

2.2K

Q9

H2B.A
H2B.B
H2B.C
H2B.D

H1B.1
H1B.2
H1B.3
H1B.4

H2B.G

10K

10K

R100

R102

+15VAMP

C93

10K

R2

10K

+15VAMP

-15VAMP

V+

-24V
V-

10K

2

–

A17.A

+

3

10k

120pF

R4

D101

FAN GND

8

4

R103

C100

120pF

1

4565

-15VAMP

D100

R424

C270

.1µF

C11

.1µF

100

1K smt 1/4w

R199

150k

D104

+
C101

22

+

+

R104

R105

100Ω smt 1/4w

22

C186

OP4.A

+15VAMP

-15VAMP

R500

DIODE SMT 1A

H7.A

H7.G

YEL

YEL

D503

1000

35V

C506

H13a.D

-15v

D501

D502

C504

1000

C503

35V

.1µ

.1µ

C505

H13a.C

GND

D505

D504

7915

VR2

+

H1A.2

+ +

+ +

H13a.A

+15v

7815

SMB

VR1

H13a.B

25V fet

R500

R504

1000µF 35V

+

Z500

1000µF/25V

Z501

1000µF/25V

C520

1K

C69

Z502

.1

C522

+

C521

R501

Q500

H7.E

H7.F

GRN

GRN

MMBT5550 NPN

R502T R502B

H1A.4

GRN

10KµF 100V
10KµF 63V

H7.D

C518

C508B+C509B

47K 1W

YEL

GND

H7.B

YEL

H7.H

C511C512

R501B

+ +

10KµF 100V

10KµF 63V

+

47K 1W

H7.C

H7.I

RED

RED

BR1

C519

+ +

+ +

C509TC508T

R501T

E1

H1A.1

E6

TO FRONT PCB

B1500: USE C508B, C508T, C509B, C509T, R501B,R501T,R502B,R502T
B500: USE C511 , C512 ( R501B, R501T, R502B, R502T -REMOVED)

+15REAR

R16

Q11

Q1

+

C4

500 ms delay

220K

250VAC

R17

220µF 50V

AC Line in from switch

AC Line out to switch

Earth to chassis

C21
.047

470K smt 1/4w

AC Neutral to transformer

F1

AC Line to transformer

H4.A

H4.B

PL1

L

E

E2

N

QC8

H4.C

H4.D

SPK1

J13

TR3

T

R44

500 ms delay

TR1

TR2

T

T

.047250VAC

C9

+15REAR

-15REAR

K1