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Schematic Diagrams, Overlays, and Parts Lists
: UHF Band 1 Section
CR303
2
3
1
100K
R302
7.5K
R340
CR302
2.0K
R303
100pF
C308
100pF
C307
C305
13.9nH
L302
20pF
9.1pF
C304
22nH
L303
C309
100pF
1
Q301
R328
0
3
2
G
3.9pF
C303
3.6pF
C301
100K
R301
C302
10pF
CR301
L301
13.9nH
RX_IN
RXFE Bottom Shield
RXFE Top Shield
RX Mixer Diod Shield
SH302
SHIELD
1
1
SHIELD
SH304
SH301
SHIELD
1
Mixer Shield
1
SHIELD
SH303
G
100pF
C321
12K
R304
C314
0.1uF
C315
100pF
180nH
L304
100pF
C310
510
R305
R5
NU
NU
L307
13.9nH
C317
9.1pF
R306
100K
C312
6.8pF
CR304
R307
100K
L306
13.9nH
C316
R329
3.9pF
0
7.5pF
C313
C318
10pF
22nH
L305
C306
C311
CR305
C380
.01uF
G
R342
100K
DACRx
G
NU
3
1
2
T301
XFMR
4
6
51
R308
3
1
2
XFMR
T302
R309
0
150nH
L310
R310
C381
CR306
2
3
4
1
C322
82pF
IF
NU
C375
100pF
16.28nH
L309
4
6
3.6K
R348
C320
16pF
TP302
C319
2.7pF
G
NU
NU
NU
10K
R330
NU
240
R331
C370
4.7pF
VCOBUF
C374
100pF
C371
C378
C372
100pF
C373
C386
100pF
4.3K
R339
1
3
2
Q310
L321
180nH
R333
12K
R332
0
R349
R5
G
RX_INJ
2580541Z02
Figure 4-21:
UHF (403–470 MHz) Receiver Front End Schematic Diagram
Содержание PR860
Страница 1: ...PR860 Two Way Portable Radio Detailed Service Manual ...
Страница 2: ......
Страница 5: ...iv Notes ...
Страница 9: ...viii Table of Contents Notes ...
Страница 13: ...Notes xii List of Figures ...
Страница 17: ...1 4 Introduction Radio Model Information Notes ...
Страница 51: ...2 34 Theory of Operation Voltage Control Oscillators VCO Notes ...
Страница 81: ...4 4 Schematic Diagrams Overlays and Parts Lists Flex Layout Notes ...
Страница 193: ...4 116 Schematic Diagrams Overlays and Parts Lists Low Band Section Notes ...
Страница 196: ......