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SA-AK450P / SA-AK450PC
SCHEMATIC DIAGRAM - 6
MAIN CIRCUIT
: +B SIGNAL LINE
TO MAIN SECTION (3/4)
IC3500
C0CBCDG00003
REGULATOR IC
D_PORT_5V
2
4
A_GND
A_GND
1
3
D_PORT_PCONT
B0EAKM000117
T_GND
D3501
D3502
MOT_12V
C10
C11
C12
C13
C14
C15
C16
C17
W672
0
D2937-D2939
B0EAKM000117
CN2805
15
16
17
: MAIN SIGNAL LINE
: AUX SIGNAL LINE
: USB SIGNAL LINE
TO MAIN SECTION (2/4)
QR3403
QR3404
QR3401-QR3405
QR3402
B1GBCFGN0016
SWITCH
QR3401
Q3500
2SC3940A0A
SWITCH
5
C3501
R3501
R3401
R3403
R3402
R3404
100p
100
33K
15K
10K
6.8K
R3400
D3501-D3505
82K
C3502
16V220P
D3508
QR3400
B0BC6R000006
B1GBCFGN0016
D3503 D3504
D3505
SWITCH
R2886
1M
R2883 C2883
330k
22p
R2882
10M
C2882
X2801
18p
H0A327200097
W604
0
W648
Q2936
W611
0
0
W615
W630
0
0
Q2937
W640
0
Q2936
30
29
28 27
26
25 24
23
22
21 20
1
2
3
4
5
6
7
8 9
10
11 12
13 14
15
B1ACKD000006
CD SUPPLY
CONTROL SWITCH
Q2937
B1GBCFJJ0051
CHANGER PLUNGER
ON/OFF SWITCH
TO CRSI (CN1)
TO
PANEL CIRCUIT (CN6601)
IN SCHEMATIC DIAGRAM-7
18
19
20
IDCDET
FAN
MOT_12V
R2943
R2945
10k
Q2943
3
QR3405
2
1
R2946
56k
R3406
R3405
U_GND
180K
5.6K
W595
Q3401
W623
0
+3.3V
0
R3411
12
220K
-9V
11
W576
Q3400
R3410
10
0
MOT_12V
220K
B1ABEB000012
9
STANDBY
8
DETECT SWITCH
R3409
IDCDET
220K
7
CD_3.3V
(cater)
6
+5V
W618
5
Q3401
PCONT
0
4
B1ABEB000002
U_GND
3
W631
W666
W668
C2753
0.1u
DETECT SWITCH
0
0
0
2
P_GND
1
R2852
22k
VCC
220
R2881
D2803
C2853
X2802
B0ACCK000005
0.1u
H2B100500004
R2851
lRESET
C2854
47k
1
1
3
6.3V220
W594
CNVSS
W605
0
2
0
A_GND
VCC
3
Q2803
XM_MUTE(BUSY)
2
4
U_GND
VREF+
5
C2803
CLK
1u
6
C2802
IPOD_RXD
3.3
7
IPOD_TXD
8
Q2803
B1GBCFJJ0051
RESET (MICRO-P) SWITCH
19
18
17
16
15
14
13
12 11
10
9
8
7
6
5
4
3
2
1
CN2806
21
22
23
72
C2940
0.1u
Q2942
R2940
B1ACKD000006
820k
FAN MOTOR ON/OFF SWITCH
Q2942
1
+
TO FAN
2 -
CN2810
R2942
5.6K
10K
Q2943
B1ABCF000176
R2939
FAN SUPPLY
Q2949
CONTROL SWITCH
R2949
47K
47K
R2948
C2948
Q2948,Q2949
10V220u
100
Q2948
B1ABCF000176
DC DETECT SWITCH
R2947
27
3.3V
-VCC
XM5.3V
MOT_12V
TO
STANDBY
POWER
/DCDET
CIRCUIT
(CN5103)
3.3V
IN SCHEMATIC
+5V
DIAGRAM-10
PCONT
UP_GND
FL_GND
P-GND
CN2808
/RESET
CNVSS
VCC
SOFTWARE
BUSY
WRITING
EFM
CLK
RXD
TXD
1/4
2/4
SA-AK450P/PC MAIN CIRCUIT
3/4
4/4
24
25
26
I
J
K
L
M
N
O
P
27
28
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