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1

2

3

4

5

6

F

F

V+

COMP
2

Q201 2240BL
1

3

R210 43K C207 2N7

R209 56K

2

P201 V9 50KA

R208 3K3

R207 18K

1

C205 22

V+

R206 56K
VV-

VE V+ V+

C206
V+ E

INSTR. INPUT J1
2 6 5 4 1

Q101 2SK222E C101 R101 3N3 270K
3

10N
V+

C102 22
3 1

GAIN

C103 4N7

2

U1 BA6110
1

R212 27K
4

R211 100K Q202 2240BL
3

R202 4K7

2

3

C202
2 3

2

Q203 2240BL
1 V2

3

9

V8

C201 1

10N

H20580060S
V-

R102 470K

R103 4K7

R107
2

2 1

D201 1N4148
1

R204 1M

5

6

7

R105 22K

4K7
V-

VU adj.=-15dBm D 1

P101 V9 50KA R104 1K

R106 10K

R108 10K C104 1N

R110 47K R109 100K

2

R201 1M R203 4K7

C203 10N

V-

V3

Q204 2240BL
1

to upper pcb C204 10 C314
V+

D202 1N4148
1

R205 1M

JP2
1 2 3 4 5 6 D

V-

V-

V-

V-

V-

22

DC 9V J2 J7001
v+ V+ C 2 5 4 1

C301 2.2 R308 470
3 V+ 4 V+ 1 V2

6RW

U3A
5

4558S BASS R301 8K2 V9 50KB P301
3 1

EFFECT-IN / RETURN
2 4 1

C311 6N8 R304 10K C306 3N3
V+ 1 3 2

R309 82K

V-

J3 H10380030S
C

BATTERY CONTACT -

C1 470
1

D1 1N4001

C310 680N R310 MID
2

C303
2

C304 22N R302 5K6

R313 1K5
V+ V8 6 9 7

R316 47K
V-

0.1
VVV-

C312 68N
3

680 R311 470

C309
1

R314 27K

C313 22 R315 47k
2 4 1

PRE-OUT / SEND J4 H10380030S

R305 2K2

R303 3K3
2

4

U2A
5

1

P303 V9 10KB

4558S
4 6 1

V-

R312 3K3 R317 1M
2 3

U3B 4558S

C302
3 1

C305 P302 V9 50KB 8N2

22N
B

SW1B SK22D02
5

SW1A SK22D02

V-

VB

TREBLE MYLAR 1) PRE-SHAPE OFF 2) PRE SHAPE ON C307 150N

LO-NOISE

R306 220

V+ 7 8 6 9

STANDARD

C308 10N

R307 120K

U2B 4558S

12%(/6 (/(&7521,&6
http://wwww.nobels.com - email: [email protected]
Title Number: Date:

A

CERAMIC

Barnerstrasse 42, 22765 Hamburg, Germany
A

MAIN-BOARD / LOWER-PCB

BASS PAK
4-Feb-2000
D:\BP_M6.SCH 6 Time:

Size: A4

Rev: 6 of

All rights reserved - Copyright NOBELS Electronics 1 2 3 4

All unspecified capacitors in uF, resistors carbon 5% 5

13:04:24

Sheet 1

2

File: