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SCHEMATIC DIAGRAM OF P.C.B
1
2
1
2
1
3
4
3
4
3
C
E
E
C
E
C
E
C
DC_FAN
BG
KEY1
KEY2
KEY3
KEY4
KEY5
KEY6
DIAL_A
S_CLK/TXD
S_DIN/RXD
2
1
2
1
2
1
2
1
2
4
3
4
3
4
3
4
3
4
E
C
44
ZERO
P54/EINT10
43
P53
42
P52/EINT8
41
IC1_XIN
P51/XIN
40
IC1_XOUT
P50/XOUT
39
VSS
38
VDD
37
DSDA
P00/DSDA
36
DSCL
P01/DSCL
35
PWM
P02/AN0/EINT0
12
34
IB
P31/COM6/SEG4
P03/SEG26/AN1/EINT1
13
P30/COM7/SEG5
14
P27/SEG6
15
P26/SEG7
16
P25/SEG8
17
P24/SEG9
18
P23/SEG10
19
P22/SEG11
20
P21/SEG12/AN15
21
P20/SEG13/AN14/Txd1
22
P10/SEG14/AN13/Rxd1
E
C
C
E
8-1
4
1
-
+
1
5
S
D
PC817
C
E
C
E
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