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s
G
uide
ervice
SP-HF1200A
Chapter 3. Block Diagram
～
23
0V
5
0H
z
10
3/
25
0V
S
W
P
O
W
ER
2
50
V
/6
A
T5
00
m
A
/2
50
V
EI
-5
73
0
13
V
*2
/1
A
+
- P
O
W
ER
SU
PP
LY
+
-
9.
1V
D
CP
O
W
ER
SU
PP
LY
3.
6V
D
CP
O
W
ER
PO
W
ER
S
U
PP
LY
A
U
D
IO
IN
A
U
X
L
&
R
IN
TR
EB
LE
&
BA
SS
A
D
JU
ST
C
O
N
TR
O
L
V
O
LU
M
E
CO
N
TR
O
L
IC
4
55
8
G
A
IN
IC
4
55
8
G
A
IN
IC
T
D
A
20
30
A
A
M
PL
IF
IE
R
PH
O
N
E
O
U
TP
U
T
L_
SP
K
_O
U
T
R_
SP
K
_O
U
T
A
U
D
IO
IN
V
O
LU
M
E
C
O
N
TR
O
L
