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SCHEMATIC DIAGRAM
LCD
CA411-TS
LSI
JTMP0340-1902S(PI)
IC1, IC2
TC7S02F
IC3
TC7S04F
IC4
RH5VL27CA/S-8072AL-AG
±2%
R1
62K
1/8W
R2, R3
100
1/8W
C1
18PF / 50V
C2
15PF / 50V
C3, C5
0.1uF / 25V
C4
10uF / 4V
D1, D2
MA151K
D3
MA704
BT1, BT2
CR2025
XT
32.768KHz
BZ
EFB-S55C41A8
IC1
2
R2
4
1
BZ
IC3
IC2 2
R3
4
1
BT1
+
D1
D2
BT2
D3
2
1
IC4
C5
3
IO34
O51
ON TEL
BUS/PE
S1
S2
IN11
OFF
CAPA
IN12
1
2
Q
W
IN13
C DST
A
CLR
IN14
Z
Transmit connector
C3
C1
C2
XT
R1
C4
/AC
VSS
RESET
S3
S4
S5
NUM
SECRET
ALPHA
3
4
5
E
R
T
M- :
MC
MR
F
S
D
+
X
C
V
LCD
76
77
IO0
O52
O51
/AC
XOUT
XIN
VSS
RIN
ROUT
TS
/CE
BZ
VOUT
VDD
VLC
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
S60
102
1
S6
S7
S8
7
8
6
U
I
Y
M+ /
'
% ?
G
H
J
÷
-
X
SPACE
M
B
N
— 6 —
LSI
S9
S10
S11
CONVE
-RSION
WORLD
0
SCHE
9
P
-DULE
O
12/24
AM/PM
K
L
=
SET
52
51
S11
S12
VDD
S13
S14
S15
S16
S17
S18
S19
S20
S21
S22
S23
S24
S25
S26
S27
S28
S29
S30
S31
S32
28
VDD
26
S33
27
S34
25
S12
S13
HOME
REMIN
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EDIT
AC
TR
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