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15
16
17
SCHEMATIC DIAGRAM - 3
MAIN CIRCUIT
: + B SIGNAL LINE
R2323
IC2804
68k
C2321
C0AABB000125
47p
C2341
OP AMP
10p
R2321
10k
1
4
3
2
1
IC2804
2
5
6
7
8
R2322
10k
Q2317,Q2417
3
B1ABGC000005
HEADPHONE MUTING
R2516
R2324
4.7k
68k
R2517
Q2317
10k
Q2417
R2417
10k
R2416
4.7k
5
QR2317
B1GDCFGA0018
MUTIING CONTROL
R2355
4
R2352
R2356
18
QR2317
18
18
C2357
C2358
1000p
R2365
1000p
R2358
R2357
100k
18
18
C2365
25V4.7
R2359
R2363
5.6k
1
R2361
Q2359
5.6k
R2448
22k
Q2360
R2362
5.6k
R2360
5.6k
Q2359,Q2360
R2364
1
B1ABGC000005
HEADPHONE MUTING
6
TO MAIN SECTION (1/4)
18
19
20
21
: - B SIGNAL LINE
:MAIN SIGNAL LINE
R3125
K3100
0
0
C3107
C3109
1800P
0
C3105
1
R2318
R3111
100k
3.3k
R3113
10k
R3114
R2418
10k
100k
C3110
0
R3112
3.3k
C3106
1
C3108
R3126
K3200
1800P
0
0
Q2374,Q2375,Q2571
B1GDCFJA0023
SWITCH SUPPLY SWITCH
TO MAIN SECTION (4/4)
22
23
24
D2940
MA2J11100L
D2734
B0EAKM000117
Q2942
B1ACKD000006
FAN MOTOR ON/OFF SWITCH
C2944
R2944
1000p
5.6k
Q2943
R2937
10k
C2942
0.1
R2949
47k
89
SA-AK570PL / SA-AK570GCP
25
26
27
28
K2001
0
...PL
K2002
...GCP
0
CN5050
17
1
FRONTL
2
SIGNAL A_GND
3
FRONT R
C2561
AGND
0
4
5
SUBWOOFER
6
AGND
TO
7
SURROUND L
D-AMP CIRCUIT
8
AGND
(CN5050) IN
9
SURROUND R
SCHEMATIC
10
AGND
DIAGRAM - 16
11
CENTER
MUTE_S
12
MUTE S_C (MODE 1)
MUTE_F
MUTE F_SW (MODE 2)
13
14
FHOP
15
Fan
16
DC_DET
MOD_DA
MOD_DA
17
1
CN2810
1
NEGATIVE
FAN
2
POSITIVE
C2941
R2941
Q2943
16V47
10k
B1ABCF000176
FAN SUPPLY CONTROL SWITCH
R2939
47k
1/4
2/4
SA-AK570PL/GCP MAIN CIRCUIT
3/4
4/4
A
B
C
D
E
F
G
H
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