— 6 —
SCHEMATIC DIAGRAM
76
52
51
25
1
102
77
27
26
28
S9
S4
S1
S2
S3
S4
IO23
IO22
S54
C1 C2
C3
C4
C5
C6
C7
C8
C9
C10
S60
S59
S58
RESET
ON TEL
BUS/PE
Transmit connector
C3
C1
XT
C2
R1
IC1
4
2
1
IC2 2
1
4
R2
R3
BZ
BT1
BT2
D1
D2
D3
IC4
1
2
3
C5
IN11
IN12
IN13
IN14
OFF
1
Q
C DST
CLR
CAPA
2
W
A
Z
NUM
ALPHA
3
E
MC
S
X
SECRET
4
R
MR
D
C
5
T
M- :
F
+
V
6
Y
M+ /
G
-
B
7
U
'
H
X
N
÷
M
8
I
% ?
J
9
O
12/24
K
SPACE
0
P
AM/PM
L
=
SET
CONVE
-RSION
SCHE
-DULE
HOME
WORLD
EDIT
REMIN
-DER
AC
TR
O51
IO34
/AC
VSS
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S12
S13
IC3
C4
LCD
CA411-TS
LSI
JTMP0340-1902S(PI)
IC1, IC2
TC7S02F
IC3
TC7S04F
IC4
RH5VL27CA/S-8072AL-AG
R1
62K
1/8W
±
2%
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
+
LSI
IO12
IO13
IO14
IO21
IO22
IO23
IO24
IO31
IO32
IO33
IO34
IN11
IN12
IN13
IN14
S1
S2
S3
S4 S5
S6
S7
S8
S9
S10
IO0
O52
O51
/AC
XOUT
XIN
VSS
RIN
TS
/CE
BZ
VOUT
VDD
VLC
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
S60
S59
S58
S57
S56
S55
S54
S53
S52
S51
S50
S49
S48
S47
S46
S45
S44
S43
S42
S41
S40
S39
S38
S37
S36
S35
S11
S12
VDD
S13
S14
S15
S16
S17
S18
S19
S20
S21
S22
S23
S24
S25
S26
S27
S28
S29
S30
S31
S32
VDD
S33
S34
ROUT
LCD
