1
1
2
2
3
3
4
4
D D
C C
B B
A A
Title
Number RevisionSize
A4
Date: 2012/12/20 Sheet of
File: E:\ \..\ .SchDoc Drawn By:
P3.0
P3.1
P3.2
P3.3P3.4
P3.5
P3.5
R8
1 2
LED2
3
1
2
Q1
NPN
GND
R7
MCU_CLK
1
2
4
3
PC1
1
2
J1
R3
R2
+5V
GND
1
2
J2 +5V
GND
1
2
J3
MCU_CLK
VSS
S1
S2
GND
1
2
3
4
DATE
+5V
P3.4
1
VCC
2
P3.5
3
GND
4
P3.0
5
P3.1
6
P3.2
7
P3.3
8
STC1
R4
R5
+5V
+5V P3.0
P3.1 P3.2
+5V
GND
P3.0
P3.1
1
2
Power1
100UF/50V
C1
100UH
L1
100uF/16V
C3
104
C4
12
D1
1K
R1
12
LED1
+5V
VCC
FB
4
ON/OFF
5
GND
3
IN
1
OUT
2
lm1
LM2576T5.0
104
C2
1K
R6
VSS
1 2
D0
12
LED0