
N
4
0
1
C
D
4
0
5
2
In
p
u
t
S
e
le
c
ti
o
n
R
E
C
D
V
D
V
C
D
C
D
T
A
P
E
R
P
9
0
1
M
a
s
te
r
V
o
lu
m
e
A
d
ju
s
tm
e
n
t
N
9
0
1
B
u
ff
e
r
A
m
p
lif
ic
a
ti
o
n
R
P
H
0
1
B
a
la
n
c
e
N
9
0
3
E
c
h
o
A
m
p
lif
ic
a
ti
o
n
L
e
ft
C
h
a
n
n
e
l's
P
o
w
e
r
A
m
p
lif
ic
a
ti
o
n
R
ig
h
t
C
h
a
n
n
e
l's
P
o
w
e
r
A
m
p
lif
ic
a
ti
o
n
P
ro
te
c
ti
o
n
C
ir
c
u
it
R
P
9
0
2
R
P
9
0
3
N
9
0
2
T
o
n
e
A
d
ju
s
tm
e
n
t
P
u
s
h
B
u
tt
o
n
M
a
tr
ix
S
p
e
c
tr
u
m
L
e
v
e
l
C
o
m
p
a
ri
s
o
n
F
ro
n
t
P
a
n
e
l's
F
u
n
c
ti
o
n
C
o
n
tr
o
l
V
F
D
S
c
re
e
n
N
6
0
1
A
N
6
0
1
B
S
im
u
lt
a
n
e
o
u
s
T
w
o
L
in
e
s
A
m
p
lif
ic
a
ti
o
n
N
9
0
5
S
C
6
9
3
1
E
c
h
o
P
ro
c
e
s
s
in
g
M
IC
M
u
ff
lin
g
B
L
O
C
K
D
IA
G
R
A
M
(
F
ig
u
re
1
)
N
9
0
6
A
L
e
v
e
l
S
a
m
p
lin
g
A
m
p
lif
ic
a
ti
o
n
2
C
H
a
n
d
5
C
H
S
w
it
c
h
R
P
6
0
1
R
P
6
0
2
V
o
lu
m
e
A
d
ju
s
tm
e
n
t
R
P
6
0
3
R
P
6
0
4
N
9
0
6
B
T
o
n
e
A
d
ju
s
tm
e
n
t
V
6
0
1
E
c
h
o
S
ig
n
a
l
A
m
p
lif
ic
a
ti
o
n
P
o
w
e
r
S
u
p
p
ly
C
ir
c
u
it
S
p
e
a
k
e
rs
L
R
L
R
C
S
R
S
L
M
IC
1
M
IC
2
O
K
-S
W
- 2 -
- 25 -
8.3.2 Schematic Diagram of The Potentiometer
RPH01A
B50K
RPH01B
B50K
1
2
3
4
5
XP7
5PIN
L2
L3
R2
R3
GND
R917
2.2K
R918
2.2k