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SA-AK750P / SA-AK750PC
15
16
17
SCHEMATIC DIAGRAM - 4
MAIN CIRCUIT
: +B SIGNAL LINE
TO MAIN SECTION (2/4)
18
19
20
: FM/AM/XM SIGNAL LINE
: MAIN SIGNAL LINE
: IPOD SIGNAL LINE
R2335
R2331
1k
C2331
Q2317,Q2417
6800p
B1ABCF000176
MUTING SWITCH
R2316
2.2k
C1
R2435
C2431
R2317
Q2317
1k
6800P
18K
R2318
100k
R2329 C2321
8.2K
0.22
R2356
180k
W586
R2456
180k
0
R2417
18k
R2418
R2429
100k
8.2K
Q2417
R2416
2.2k
C2421
0.22
C2
R2327
C2324
1u
12k
C3
C2424 R2427
12k
1u
C2731
C4
R2731
50V100
100
C5
R2721
1k
C6
COABBB000244
SMT OP-AMP IC
R2561
C2551
C2552
27k
100p
R2722
1k
5
6
7 8
C7
C2722
0.01u
IC2810
C2721
100
R2565
4 3
2 1
220k
C8
C2555
100p
C2556
R2563
C2558
0.01u
47k
0.15u
Q2551,Q2552
B1GDCFJJ0047
SWITCH SUPPLY SWITCH
TO MAIN SECTION (4/4)
C9
21
22
23
R2334
C2333
W587
0
0
0
1u
R2333
15k
1
F_HOP
2
T-GND
3
MUTE-D-AMP
C2433
4
+15V
R2431
1u
R2434
5
HIGH_L-IN
0
6
HIGH_R-IN
0
A_GND
7
ASP_GND
R2321
C2325
0
50V1
R2326
8
LOW_L-IN
9
LOW_R-IN
0
10
A_GND
R2323
11
SUBW
39k
12
FAN
C2423
R2423
R2428
39k
0.01
R2426
15k
DPORT_AUDIO_L
C2425
0
DPORT_GND
DPORT_AUDIO_R
R2421
50V1
D_PORT_DET1
0
A_GND
C2943
50V2.2
D_PORT_5V
D_PORT_DET2
USB_SCL-IPOD_RXD
R3412 100
ACK_IN
IP-POD LINK
USB_SDA-IPOD_TXD
A_GND
IC2810
+9V
Q2553,Q2554
B1ABCF000176
+3.3V
SUBWOOFER LEVEL
VCC
R2560
CONTROL SWITCH
3.3k
10
XM_I2S
D2551,D2552
B0BC2R4A0006
XM_LINKACTIVE
R2558
3.3k
Q2553
Q2554
XM_MUTE(BUSY)
R2556
1k
XM_R
R2562
Q2555
A_GND
47k
R2568
XM_L
100k
R2588
XM_DAC_RESET
R2566
C2560
180k
2.2k
CD_3.3V
1u
XM_TXD
Q2552
R2567
XM_RST
18k
A_GND
XM5.3V
Q2551
K3301
0
XM_PCONT
+3.3V
XM_RXD
Q2555
B1ABCF000176
XM_ANT_REV
SUBW MUTING SWITCH
72
24
25
26
CN2809
TO
POWER
CIRCUIT
(CN5102)
IN SCHEMATIC
DIAGRAM-10
W654
0
W673
0
CN3400
1
AUDIO_L
2
A_GND
AUDIO_R
3
4
D_PORT-DET1
5
DGND
TO
6
DGND
D-PORT CIRCUIT
7
D_PORT_5V
(CN806A) IN SCHEMATIC
8
D_PORT_5V
DIAGRAM-8
D_PORT-DET2
9
10
UART_OUT
AD_CTRL
11
12
I-POD_DET
R3414
13
UART_IN
100R
Q3450
R3450
B1ADCE000012
Q3450
R3415
47K
10k
R3451
R3452
47K
4.7K
Q3451
B1GBCFJJ0051
R3109
R3112
10
10
D3100
B0ACCK000005
17
MUTE
16
12S_RATE
15
LINKACTIVE
R3108
14
AOUT_R
100
13
A_GND
12
AOUT_L
R3107
100
TO
11
DAC_RST
XM CIRCUIT (FP1)
10
D3.3V
R3105
100
IN SCHEMATIC
C3101
9
SC_RXD
1000P
R3104
100
DIAGRAM-2
8
SC_TXD
R3102
100
7
ANT_REV
R3101
100
6
DTIC_RST
5
D_GND
C3100
4
D_GND
1000p
3
D5.3V
2
D5.3V
1
PWR_CTRL
CN3100
R3121
4R7K
1/4
2/4
SA-AK750P/PC MAIN CIRCUIT
3/4
4/4
27
28
A
B
C
D
E
F
G
H
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