Version: 1.0 Page 10/16
s
G
uide
ervice
SW-HF2.1-1250
Chapter 4. Block Diagram
AC
I
N
！
SW1
PO
WER
C21
103M
/400V
！
12.
5V*2/1.
5A
EI
-5
7
+
-
POW
E
R
SUPPLY
+ -
5V DC POW
E
R
SUPPLY
POWER SUPPLY
Subw
oofer A
m
plifier
AUDIO IN
AUX IN R
&
L
AUDIO IN R
AUDIO IN L
VOL
UME
CONTROL
AUDIO IN R
AUDIO IN L
Low pass
IC 4558
GAIN
BA
SS V
O
L
U
M
E
CONTROL
IC
T
D
A
2030A
IC
UTC2030
Satellite A
m
plifier
TREBL
E
ADJ
US
T C
ONTR
OL
AUDIO IN R
AUDIO IN L
AUDIO IN R
AUDIO IN L
R SPK
O
U
T
L S
P
K
O
U
T
SU
BW
O
O
FE
R
OUT
AMPLIFIER
AUDIO
IN VO
LUM
E CO
NTRO
L
