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Section 8
Schematic Diagrams
VCC2
R201
10k
MA133-TX
CN201
1
1
GND
2
2
GND
3
CLK
3
CLK
DATA
4
4
DATA
LAT
5
5
LAT
RFM
6
6
RFM
7
LD
7
LD
8
8
CU-ID
9
9
4MHz
10
10
PO_H/L
11
11
FRC
12
12
TC
DO
13
13
DO
TO/FROM
CS
14
CN302. MB-914
14
CS
TONE-OFF
15
15
TONE-OFF
ID
16
16
ID
17
17
32.768kHz
LVD
18
18
LVD
R202
AFIND
19
1k
19
AFIND
20
AFM
20
AFM
ATT2
21
21
ATT2
ATT1
22
22
ATT1
ATT0
23
23
ATT0
IC201
24
24
EXT_DC
TC74VHCU04FT(EL)
25
25
VCC1
26
26
BAT1
27
27
28
POFF-IN
28
POFF-IN
29
29
VCC2
30
30
VCC2
C201
C202
0.1uF
47uF
6.3V
WRT-847A/847B
A
B
R205
100
BUS1
BUS2
D201
R243
47k
C206
C208
C210
C212
10uF
0.1uF
10uF
0.1uF
10V
10V
R203
C204
C205
C211
R209
220pF
100k
100k
220pF
5pF
0V
R204
1k
1.48V
(3/7)
1.5V
5.8V
R207
R210
IC201
(1/7)
100k
47k
1
2
Q202
TC74VHCU04FT(EL)
2SA1965-TL
1.45V
1.48V
R212
13
12
11
10
100k
R206
R213
R214
VCC
1M
4.7k
390
GND
R211
100k
R208
2.2k
X201
4MHz
C213
C214
C203
C207
C209
CT201
2.2uF
2.2uF
47uF
47pF
5pF
20pF
10V
10V
6.3V
IC201
(7/7)
IC201
(6/7)
IC201
(5/7)
D202
GL1HY51-TE84L
TC74VHCU04FT(EL)
TC74VHCU04FT(EL)
TC74VHCU04FT(EL)
Q201
D203
2SC4738-YGR-TE85L
GL1HY51-TE84L
C
DP- 341
DP-341
BYS3
R218
47k
34
71
P50/D4
X2
35
70
P51/D5
X1
36
69
P52/D6
VPP
37
68
P53/D7
XT2
73
67
P60/KR0
XT1
74
66
P61/KR1
VDD
75
28
P62/KR2
VLC2
76
27
P63/KR3
VLC1
77
26
P70/KR4
VLC0
IC202
78
24
P71/KR5
UPD75P3036GK-BE9
COM3
79
23
P72/KR6
COM2
80
22
P73/KR7
COM1
54
21
P80/T11
COM0
55
65
P81/T12
AVREF
56
63
P82/AN6
AN5
57
62
P83/AN7
AN4
64
61
AVSS
AN3
33
60
VSS
AN2
25
59
BIAS
AN1
72
58
RESET
AN0
C215
R216
R217
R219
R221
47uF
47k
47k
10k
10k
6.3V
D204
MA133-TX
3
2
1
2
1
VDD
OUT
R220
R222
VSS
3.3V
3.3V
1k
1k
4
C224
0.1uF
S201
S202
R215
C216
C217
C218
C219
0V
10k
1uF
0.1uF
0.1uF
0.1uF
IC203
+
-
S-80827ANNP-EDQ-T2
8-1
8-1
D
E
Note:
Power voltage is 3.0 Vdc and fed with regulated dc power
supply from battery terminal.
DC valtage are taken with digital multimeter (input impedance
1 MZ or more) under no-signal conditions.
Voltage values on signal input conditions are taken when the
IC201
(4/7)
TC74VHCU04FT(EL)
signal is _55 dB (0 dB = 1 Vrms) and fed with AF oscillator from
IC201
(2/7)
MIC input terminal.
TC74VHCU04FT(EL)
C220
C221
C222
10uF
0.1uF
0.1uF
10V
R230
R232
100k
47k
R233
R234
R235
R236
100k
100k
100k
100k
1.49V
1.59V
1.5V
8
9
1.4V
R226
33k
4
3
R227
33k
R228
COM3
33k
COM2
COM1
COM0
R231
10k
R223
R229
C223
10k
10k
10uF
10V
Q203
DTC143ZE-TL
BUS4
VCC2
R224
10k
ND201
COM1
13
1
COM2
C1
C2
S0
14
2
S1
S0
S1
SET
S2
15
3
S9
S2
S9
-SW
S3
16
4
S10
S3
S10
+SW
S4
17
5
S11
S4
S11
S5
18
6
S12
S5
S12
R225
S6
19
7
S13
1k
S6
S13
S7
20
8
S16
S7
S16
S8
21
9
S19
S8
S19
S203
S14
22
10
S17
S14
S17
S15
23
11
S18
S15
S18
COM0
24
12
COM3
C0
C3
SET
F
G
1
2
R237 10k
4
CN202
(4/10)
R238 10k
5
CN202
(5/10)
R239 10k
TXD_OUT
2
CN202
(2/10)
R240 10k
RXD_IN
3
CN202
(3/10)
R241 10k
TEST
9
CN202
(9/10)
R242 10k
RESET
10
CN202
(10/10)
GND
1
CN202
(1/10)
6
CN202
(6/10)
IC204
TC74VHCU04FT(EL)
EXT_DC
7
CN202
(7/10)
GND
8
CN202
(8/10)
3
4
5
DP-341
H
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