Infinity BassLink 4sc Service Manual page 21

1
Amplifier Expansion Module
F
E
D
RN2
EQ-IN
0
RN1
1K NA
C
B
A
1
2
R551
47K 47K
R552
R549 R555 -15V
11.8K 6.8K
U505A
2
3
TL072
+15V
R550
3.48K
R557 R559
R514 28K 28K
10K
R515
10K
28K R558 R563
7.32K
U505B
5
R567 R575
7
6
4.02K 29.4K
R571
TL072
44.2K
R520
10K
R519
10K
R553 R554
47K
-15V
47K
R556
6.8K U508A
R565 2
3.48K
3
TL072
+15V
R566
11.8K
R560 R561
R518 28K 28K
10K
10K
R537
R562 R564
28K 7.32k
U508B
TL072
5
R569 R577
7
6
4.02K 29.4K
R573
44.2K
R536
10K
R535
10K
2
3
1
CUT1
U506C U506B
C501
6 5
CONT CONT
8 9 3
I/O I/O I/O I/O
CD4066 0.01uf CD4066
U506D
5600pf
C508
12 U506A
CONT
10 11 13
CONT
I/O I/O
1
I/O I/O
CD4066
C510
CD4066
5600pf
-15V R568
4.02K
U507A
R576
2 6
1
29.4K
3 5
TL072
R572
+15V
44.2K
R521 R523
10K 10K
-15V
R522
U511A
10K
1 2
1
3
TL072
+15V
U510C U510B
C503
6 5
CONT CONT
8 9 3
I/O I/O I/O I/O
CD4066
0.01uf
U510D
C513
12
CONT
10 11 13
CONT
I/O I/O
1
I/O I/O
CD4066
5600pf
C512
CD4066
5600pf
-15V R570
4.02K
U509A
R578
2 6
1
29.4K
3 5
R574
44.2K
TL072
+15V
TITLE:
DRAWN BY:
20
LWH
DWG NO: BASSLINK 4SC-E-02
3
4
BassLink 4sc
C502
4
0.01uf
C509
2
5600pf
C511
5600pf
U507B
7
TL072
EQOUT-A
200HZ-XTRL
C504
4
0.01uf
CD4066
C515
400HZ-XTRL
U510A
5600pf
2
C514
5600pf
U509B
7
TL072
BASSLINK 4SC
APPOVED:
DATE: CHECKED: DATE:
2005/11/11
VER: A2 2.0
PCB VER:
4
F
E
D
C
B
A
DATE:
SHEET: 4/7