Q227
Q226
Q218
Q217
Q216
Q215
Q214
Q213
Q212
Q207
FET
Q205
FET
IC12
IC12
IC12
IC12
IC11
IC11
IC10
IC10
IC9
IC5
IC5
[IR4302]
Driver&FET IC
Digital AMP
[IR4302]
Driver&FET IC
Digital AMP
IC4
IC4
[IR4302]
Driver&FET IC
Digital AMP
[IR4302]
Driver&FET IC
Digital AMP
IC3
IC3
IC2
IC2
J1
J1
D226
D227
D224
D225
L201
L102
L101
L2
L1
CN1
Stabilized Power Supply
BLOCK DIAGRAM
Gain control
: Non-supported
Bridge
: Non-supported
ON/OFF control
DC/DC Converter
B_R-
B_R+
B_L-
B_L+
LPF
Power Amp
RCA IN : 0dB
SP IN : -26dB
+9.9dB
2Ω
1kHz
45W/4Ω
Protection
Current
Protection
DC
SP IN:+3.9dB
RCA IN:+29.9dB
TotalGain
Output
Bch
Output
Ach
Out
Speaker
-3.3dB
fc:55kHz
+23.3dB
Level IN
Speaker
RCA IN or
Input
Bch
Input
Ach
A_R-
Filter
LC
A_L-
A_L+
A_R+
A_L-
A_R+
A_L+
Filter
LC
B_L-
B_L+
B_R+
B_R-
A_R-
Filter
LC
Filter
LC
-23.9V (BATT:14.4V)
-B
-11.5V
-5V
-B+12V
SHASSIS
GND
P-Con.
+B
+11.5V
+5V
Batt.
15A
+23.9V (BATT:14.4V)
FUSE
Auto-Pcon
SP-IN detection circuit
created date:2015-03-23
No.WA122
(No.WA122<Rev.002>)3/6
