Service manual
8-20
August 30, 2002 99R85452E01-O
Figure 8-14. UHF 403-440 MHz Controller Board Schematic
Q115
R107
47
Q116
COM0
1
COM1
2
COM2
3
COM3
4
SEG0
5
SEG1
6
SEG2
7
SEG3
8
SEG4
9
SEG5
10
SEG6
11
SEG7
12
SEG8
13
SEG9
14
SEG10
15
SEG11
16
SEG12
17
SEG13
18
SEG14
19
SEG15
20
SEG16
21
SEG17
22
SEG18
23
SEG19
24
SEG20
25
SEG21
26
SEG22
27
SEG23
28
SEG24
29
SEG25
30
SEG26
31
SEG27
32
SEG28
33
SEG29
34
SEG30
35
SEG31
36
COM0
COM1
COM2
COM3
S0
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S12
S13
S14
S15
S16
S17
S18
S19
S20
S21
S22
S23
S24
S25
S26
S27
S28
S29
S30
S31
R109
330
R108
330
BUSY
TX
Q117
C113
C141
0.001
C142
0.001
Q119
Q118
R111
51K
PTT SW
MONI SW
C143
0.001
C144
0.001
R171
47K
R172
47K
S101
S102
R119
0
R112
13K
C131
100pF
3
2
4
1
OUT
OUT
IN
GND
UP
R113
22K
1
3
2
4
1
OUT
OUT
IN
GND
R114
43K
4
3
2
4
1
OUT
OUT
IN
GND
R115
7
3
2
4
1
OUT
OUT
IN
GND
R110
51K
R116
18K
C132
100pF
*
3
2
4
1
OUT
OUT
IN
GND
R117
33K
3
2
4
1
OUT
OUT
IN
GND
0
3
2
4
1
OUT
OUT
IN
GND
8
3
2
4
1
OUT
OUT
IN
GND
5
3
2
4
1
OUT
OUT
IN
GND
DOWN
A
3
2
4
1
OUT
OUT
IN
GND 3
2
4
1
OUT
OUT
IN
GND 3
2
4
1
OUT
OUT
IN
GND
23
R118
100K
B
3
2
4
1
OUT
OUT
IN
GND
3
2
4
1
OUT
OUT
IN
GND
3
2
4
1
OUT
OUT
IN
GND 3
2
4
1
OUT
OUT
IN
GND
3
2
4
1
OUT
OUT
IN
GND
3
2
4
1
OUT
OUT
IN
GND
C
D
6
9
#
IN
1
PD
2
OSC0
3
OSC1
4
GND
5
SD
6
ACK
7
STD
8
EST
9
VDD
10
Q120
C134
0.01(w/DTMF)
R134
1K(w/DTMF)
R136
10K(w/DTMF)
R135
10K(w/DTMF)
C133
0.001
C140
0.22
C139 0.1
C138 0.1
C137 0.1
1
2
3
4
5
6
7
89
10
11
12
13
14
16
15
Q121
R126 10K
3
1
4
2
5
Q125
Q123
R153
10K(w/vox)
R154
47K
(w/vox)
R155
Not use
R156
47K(w/vox)
Q124
C171
0.1
R138
10K(w/vox)
R137
1K(w/vox)
TP115 TP116
C158
47pF
C159
47pF
C160
47pF
C161 0.001
C164 0.001
C146 0.001
C147 0.001
C148 0.001
C152 0.001
C154 0.001
C155 0.001
VDD
MIC
GND
GND
GND
RESET
GND
GND
CLOCK
DATA
PLL_LE
UNLOCK
SU AU OUT
RSSI
SQL IN
TEMP IN
RX/TX
SAVE
DAC_RX
DAC_TX
DAC_BAIS
PRO
MIC_PTT
C120
0.001
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
TP110
TP111
TP112
TP113
TP114
Vbb
Vdd
Vdd
GND
MOD_COP
DATA0
DTMF OUT
DTMF IN
DETECT IN
TDC
N/W
VOX IN
MC1
MC2
TX_MUTE
ST_BY
SQL_MUTE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
CN101
C156 0.01
C157 0.01
C162 0.001
C163 0.001
C165 0.001
C166 47pF
C167 47pF
C145 47pF
C149 0.001
C150 0.001
C151 0.001
C153 0.001
A0
1
A1
2
A2
3
Vss
4
SDA
5
SCL
6
TEST
7
Vcc
8
Q114
C129
0.01
R173
2.2k
R174
2.2k
R150
22k
C173
Not use
R177
2.2k
C136
0.22u/10
R182
0
R106
0
R127
12.4k
R128
6.98K
R129
1K
Q127
R175
4.7K
R105
10K
X101
AT-38(8.388608MHz)
C103
Not use
C102
Not use
C101
22pF
R158
470K
R101
0
R168 47K
R167 47K
Q102
R183 47K
C106
27p
L112
P07
P10
P11
1
P12
2
P13
3
P14
4
P15
5
P16
6
P17
7
RES#
8
XT1
9
XT2
10
VSS1
11
CF1
12
CF2
13
VDD1
14
P80
15
P81
16
P82
17
P83
18
P84
19
P85
20
P86
21
P87
22
P70
23
P71
24
P72
25
P73
S0
C105
0.1
0.01
TXD
RXD
R169
330
26
27
S1
28
S2
29
S3
30
S4
31
S5
32
S6
33
S7
34
S8
35
S9
36
S10
37
S11
38
S12
39
S13
40
S14
41
S15
42
S16
43
S17
44
S18
45
S19
46
S20
47
S21
48
S22
49
S23
50
VDD2
VSS2
S24
S25
S26
S27
S28
S29
S30
S31
SH101
SOLDER SHORT
R176
22K
V3
S47
S46
75
V2
51
52
S24
53
S25
54
S26
55
S27
56
S28
57
S29
58
S30
59
S31
60
S32
61
S33
62
S34
63
S35
64
S36
65
S37
66
S38
67
S39
68
S40
69
S41
70
S42
71
S43
72
S44
73
S45
74
C108
0.1
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S12
S13
S14
S15
S16
S17
S18
S19
S20
S21
S22
S23
77
76
78
V1
79
COM0
80
COM1
81
COM2
82
COM3
83
P30
84
P31
85
VSS3
86
VDD3
87
P32
88
P33
89
P34
90
P35
91
P00
92
P01
93
P02
94
P03
95
P04
96
P05
97
P06
98
99
100
Q101
C107
R165
10K
R166
10K
R148
20K
R147
20K
R145
20K
R146
20K
R144
20K
R143
20K
R142
20K
R141
20K
COM0
COM1
COM2
COM3
S0
R162
10K
R159
20K
R161
10K
R163
10K
R164
10K
R160
10K
C112
0.1
Q126
+
C114
47uF
6.3V
(T)
+
C115
47uF
6.3V
(T)
+
C116
47uF
6.3V
(T)
+
C111
47uF
6.3V(T)
M101
C104
100pF
C135
2.2uF
6.3V
R180
560k
C117
1uF
6.3V
R103
Not use
R104
0
3
1
2
Q130
LC101
LCD
R120
0
C110
0.001
OUT
1
Vdd
2
GND
3
NC
4
CD
5
Q105
C109
0.1
R170
47K
R102
47K
R121
Not use
CLK
1
D
2
CL
6
Q
5
Q'
3
4
7
8
Q122
130K
0.001