Alto Verb, Service Manual

1

2

3

4

A

B

C

D

4

3

2

1

D

C

B

A

Ti

tle

Nu

m

be

r

Re

vis

io

n

Si

ze

A4

Da

te:

8-

Jan-

2002 

Sheet    of 

Fi

le

:

D:\s

hung\P

C27\A

LTO

\D

ig

ital

\A

lfaV

er

b\S

CH

PC

B\al

phav

er

b.ddb

Dr

aw

n By

:

A

lp

h

aV

er

b

 A

n

al

o

g

 S

tag

e/P

o

w

er

 S

u

p

p

ly

 (

In

cl

u

d

ed

 A

lp

h

aC

o

m

p

)

2

1

3

22

11

33

PJ1

LJ

B0661-

6

L4 LF

22uH

VR

1A

A10K

C12

47uF

/25V

AG

ND

AG

ND2

3

2

1

U1A TL074CD

C8

47uF

/25V

R7 1K

C13

47uF

/25V

IN

PU

TR

12

13

14

U1D

TL074CD

R6 2K

2

R4 1K

AG

ND

10

9

8

U4C TL074CD

R5 1M

OU

TP

UT

R

VR

2A

B1

K

VR

3A

A10K

AG

ND

R20 270R

3

2

1

U4A

TL074CD

R11 4K

7

C23 680P

AG

ND

L1 LF

22uH

2

1

3

22

11

33

PJ3

LJ

B0661-

6

AG

ND2

R-

O

U

T

OU

TP

U

T-

A

MI

XER

-A

INTP

UT-

A

R-

INP

U

T

AG

ND

L-O

U

T

L-INP

U

T

4

11

U4E

TL074CD

4

11

U1E

TL074CD

-5

V

-5

V

+5V

A

+5V

A

J1

1

3

4

5

6

2

SW

1

PW

R

 SW

C10

2200uF

/25V

C11

220uF

/25V

U2

LM

7805

U3

LM

79L05

C4

100uF

/25V

C6

10uF

/16V

C3

100uF

/25V

C5 10uF

/16V

L2

LF

22uH

L3 330uH

-5

V

SG

ND

SG

ND

SG

ND

SG

ND

SG

ND

SG

ND

SG

ND

SG

ND

SG

ND

D2

IN

4002

D3 IN4002

AC 9V

 INP

U

T

C9 220P

AG

ND

C14 10nF

+5V

2

1

3

22

11

33

PJ2

LJ

B0661-

6

L5 LF

22uH

VR

1B

A10K

C16

47uF

/25V

AG

ND

AG

ND2

5

6

7

U1B TL074CD

C15

47uF

/25V

R15 1K

C17

47uF

/25V

IN

PU

TL

10

9

8

U1C

TL074CD

R14 2K

2

R12 1K

AG

ND

12

13

14

U4D TL074CD

R13 1M

OU

TP

UT

L

VR

2B

B1

K

VR

3B

A10K

AG

ND

R23 270R

5

6

7

U4B

TL074CD

R19 4K

7

C24 680P

AG

ND

L6 LF

22uH

2

1

3

22

11

33

PJ4

LJ

B0661-

6

AG

ND2

OU

TP

U

T-

B

MI

XER

-B

INTP

UT-

B

AG

ND

C25 220P

AG

ND

C26 10nF

C18 100nF

C19 100nF

AG

ND

C20 100nF

C21 100nF

AG

ND

C2

100uF

/25V

C1

100uF

/25V

SG

ND

SG

ND

C22 100nF

SG

ND

R21 10K

R22 10K

(o

pt. al

facom

p)

AG

ND

AG

ND

(opt

 al

fa

co

mp)

2

1

3

5

4

6

SW

2

DP

DT

UP

=c

ompr

es

so

r ef

fe

ct

DO

W

N=by

pas

s

+V

CC

(M

ON

O I

N

)

C4

6

47P

C4

7

47P

C4

8

47P

C4

9

47P

KEVI

N  LI

N.

L7

BL

M

21A

102

L8

BL

M

21A

102

AG

ND2

AG

ND

P1

ST

AR

TG

ND

SG

ND

6

1

3

4

L10

PLT09H-

2003R

L12

BL

M

21A

102

DG

ND

L11

BL

M

21A

102

PS1 RX

110

2002/

01/

06

A

-V

E

RB

IO

.S

CH

M

O

DEL:ALTO Alp

h

a

VERB

AS1

AS2

AS3

AS4

AS5

AS6

-5V

O