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SA-NS55P
15.6. POWER CIRCUIT
1
2
3
SCHEMATIC DIAGRAM - 8
A
POWER CIRCUIT
B
R250
8.2K
R251
6.8K
R450
8.2K
JW805
R451
C
6.8K
+VCC
12
+VCC
11
MUTE_B
10
9.6V
9
TO
CD7.5V
8
MAIN CIRCUIT
IN_L
7
(CN805)
AGND
6
IN SCHEMATIC
IN_R
5
DIAGRAM - 3
PCONT2
4
EARTH_GND
3
OP_LEVEL
2
D
SUB+B_11V
1
E
C0DAZYY00006
7.5V & 9.6V REGULATOR IC
F
G
H
1
2
3
4
5
6
: + B SIGNAL LINE
: MAIN SIGNAL LINE
1
2
3
4
C252
FP600
2700P
5A
C372
2200P
C254
R254
820
50V0.22
C452
2700P
R454
C454
820
50V0.22
R252
R452
8.2K
8.2K
R380
R253
R453
2R2K
3.9K
3.9K
C253
C453
0.068u
0.068u
R586
10K
2
4
VCC
V02
IC600
IC600
C600
R583
3.3K
16V22
C587
50V1u
V01
GND
CTL
1
3
5
CD7.5V
B1ABCF000176
R585
C601
OP LEVEL SWITCH
1K
16V22
4
5
6
7
8
9
IC400
AN17831A
POWER AMPLIFIER IC
5
6
7
8
9
10
11
12
C455 C255
100P
100P
C256
470P
W407
C352
0
2200P
C456
470P
R580
R581
10K
10K
C257
0.22u
R256
AGND
AGND
2.2
C586
C370
R381
50V10
16V22
10K
W409
0
R584
56K
Q600
C588
50V1u
7
8
9
66
10
11
12
L270, L271, L470, L471
G0AR76Y00003
JK600
L270
1
L+
L271
C259
100P
2
L-
SPEAKERS
L470
3
R+
L471
C459
100P
4
R-
C258
C457
C458
0.22u
0.22u
0.22u
ZJ400
SNE1004-3
R257
R456
R457
2.2
2.2
2.2
GND
10
11
12
13
14
A
B
C
D
E
F
G
SA-NS55P POWER CIRCUIT
H
13
14
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