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Schematic Diagrams, Overlays, and Parts Lists
: UHF Band 2
NU
C113
15pF
C111
13.0pF
C112
36pF
C181
Microstrip
7.66nH
L106
TX_OUT
100pF
C109
10uF
C123
UNSWB+
BEAD
E101
0.1
R102
L107
33.47nH
Microstrip
1
2
3
Q110
Microstrip
3.0
R176
3.0
R175
R172
200
22.0nH
L117
0.1uF
C172
C114
100pF
HEATSINK
H101
POS
1
PA SHIELD
SHIELD
SH101
1
(Use 82K with new PA)
NU
R174
43K
R120
C119
100pF
100pF
C171
R173
180K
43K
R171
R104
47K
R111
20
TX_INJ_1
100pF
C295
R112
300
R110
300
100pF
C125
TX_INJ
NU
NU
56pF
C160
L160
11pF
C116
4.22nH
L108
C121
100pF
16pF
C120
C115
C180
27pF
10pF
C117
R191
0
10
R106
100pF
C118
.022uF
C152
R108
5.6K
.022uF
C128
390nH
L112
100pF
C130
UNSWB+
NU
.022uF
100pF
C150
C151
R107
6
RFOUT1
7
RFOUT2
1
VCNTRL
14
VD1
2
VG1
3
VG2
5
GND2
12
GND3
13
GND4
8
NC1
9
NC2
10
NC3
15
NC4
16
RFIN
U101
30C65
17
EP
11
G2
4
GND1
200
R161
0.1uF
C161
100K
R132
C129
6.8pF
100pF
C165
5.6nH
L113
2pF
C169
C131
L114
.022uF
390nH
1000pF
C127
C166
100pF
UNSWB+
1000pF
C133
L115
3300pF
390nH
C134
1MEG
R136
.022uF
C135
200K
R109
.022uF
C173
VG
15
VL
6
VLIM
19
T1
2
TEMP
30
V10
14
V45
16
17
V5EXT
20
VAR1
18
VAR2
24
VAR3
INT
4
22
NA
Q
11
QX
10
1
RFIN
RS
21
31
RSET
RX
23
CL
7
CLK
26
CQ
12
CQX
13
DATA
28
F168
9
GND1
8
GND2
25
U102
H99S-4
ANO
32
BPOS
27
CEX
29
CI
3
CJ
5
C110
100pF
10K
R130
100pF
C170
C138
100pF
CR105
GND
3
1
POS
2
VOUT
LM50
R131
0.1uF
C126
18K
RESET
5V
NU
100pF
C174
TX_BIAS
ANT_BIAS
100pF
R133
C122
CR103
2
3
1
1
3
100pF
C132
Q111
2
6
4
100pF
C105
UNSWB+
UNSWB+
DATA
CLK
CSX
Figure 4-43:
UHF (450–512 MHz) Transmitter Schematic Diagram
Summary of Contents for PR860
Page 1: ...PR860 Two Way Portable Radio Detailed Service Manual ...
Page 2: ......
Page 5: ...iv Notes ...
Page 9: ...viii Table of Contents Notes ...
Page 13: ...Notes xii List of Figures ...
Page 17: ...1 4 Introduction Radio Model Information Notes ...
Page 51: ...2 34 Theory of Operation Voltage Control Oscillators VCO Notes ...
Page 81: ...4 4 Schematic Diagrams Overlays and Parts Lists Flex Layout Notes ...
Page 193: ...4 116 Schematic Diagrams Overlays and Parts Lists Low Band Section Notes ...
Page 196: ......