Circuit diagram

1 2 3 4
A
B
C
D
4321
D
C
B
A
BC512-21RT
121-06213-176E-1010
DESIGNED
CHECKED
APPROVED
DATE
REVISION
MODEL NO
TITLE NAME
PROD NAME
CHANGED BY
2007/06/01
UPDATE CONTENT
SCHEMATIC
01
1
2
3
4
5
6
7 8
9
10
11
12
13
14
RTC
CTC
RS
VC
AR
MR
VSS Q
PH
M
NC
A
B
VDD
IC3
HEF4541B
R66
1M
R67
2.2M
C42
120nF
V12
C43
100NF
RED
LED1
R100
4.7K
V12
R71
4.7K
R68
10K
R72
4.7K
Q14
BC817
GREEN
LED2
D18
MM4148
RED
LED4
R70
2.7K
YELLON
LED3
Q15
BC817
R74
4.7K
R75
4.7K
D19
MM4148
D20
MM4148
D21
MM4148
R108
4.7K
R111
200K
R112
390k
R109
39K
R59
1K
5
6
7
4 8
IC6B
LM358
V12
V12
48
2
3
1
IC6A
LM358
D36
MM4148
D37
MM4148
R57
10K
R43
47R
1 2 3 4 5
LED BOARD
V12
R65
2.7K
V12
IC11
AZ431AZ
R79
1K
R76
7.5K
R78
4.7K
4 8
2
3
1
IC9A
LM358
R81
10K
R77
1K
R82
10K
R80
1M
5
6
7
4 8
IC9B
LM358N
R40
15K
R39
2.7K
Q7
BC817
D25
0R
D32
0R
RJ7
OR
V12
1 2 3 4 5 6 7 8 9 10
CTRL BOARD
V12
V12
2007/09/0402
背焊
619K