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SCHEMATIC DIAGRAM - 5
MAIN CIRCUIT
: +B SIGNAL LINE
TO MAIN SECTION (3/4)
C10
C11
C12
C13
C14
C15
C16
W257
B0JAMK000015
C17
D2937-D2941
D2940
B0EAKM000117
D2939
D2938
D2937
1
2
CN2805
15
16
17
: AUX SIGNAL LINE
: MAIN SIGNAL LINE
: MIC SIGNAL LINE
TO MAIN SECTION (2/4)
R2886
1M
R2883 C2883
330k
22p
R2882
10M
C2882
X2801
18p
H0A327200097
W604
0
W611
Q2936
0
W615
Q2937
0
Q2936
30
29
28 27
26
25 24
23
22
21 20
19
18
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-6
18
19
20
: USB SIGNAL LINE
IDCDET
FAN
MOT_12V
R2943
10K
R2945
10k
Q2943
3
2
1
R2946
56k
U_GND
W623
+3.3V
0
W618
W595
0
-9V
0
W668
MOT_12V
W576
0
STANDBY
0
IDCDET
CD_3.3V
(cater)
+5V
PCONT
U_GND
C2753
0.1u
P_GND
R2852
22k
VCC
lRESET
CNVSS
W605
0
VCC
R2881
220
D2803
BUSY
C2853
X2802
B0ACCK000005
0.1u
U_GND
H2B100500004
R2851
USB_RST
C2854
47k
1
3
470
USB_SCL
W594
A_GND
USB_SDA
2
0
VREF+
C2803
1u
C2802
3.3
Q2803
B1GBCFJJ0051
RESET (MICRO-P) SWITCH
17
16
15
14
13
12 11
10
9
8
7
6
5
4
3
2
1
CN2806
21
22
23
69
0.1u
C2940
Q2942
R2940
B1ACKD000006
820k
FAN MOTOR ON/OFF SWITCH
Q2942
1
+
TO FAN
2 -
CN2810
R2942
5.6K
Q2943
B1ABCF000176
R2939
FAN SUPPLY
Q2949
CONTROL SWITCH
R2949
47K
47K
R2948
C2948
Q2948,Q2949
10V220u
100
Q2948
B1ABCF000176
DC DETECT SWITCH
R2947
27
12
3.3V
11
-VCC
10
XM5.3V
9
MOT_12V
TO
8
STANDBY
POWER
7
/DCDET
CIRCUIT
(CN5103)
6
3.3V
IN SCHEMATIC
5
+5V
DIAGRAM-9
4
PCONT
3
UP_GND
2
FL_GND
1
P-GND
CN2808
1
/RESET
2
CNVSS
3
VCC
SOFTWARE
4
BUSY
WRITING
5
EFM
CLK
6
7
RXD
TXD
8
1/4
2/4
SA-AK250GCP MAIN CIRCUIT
3/4
4/4
24
25
26
SA-AK250GCP
I
J
K
L
M
N
O
P
27
28
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