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UHF Narrow Band PCB/Schematic Diagrams and Radio Parts List (RF Board)
3-67
NU
68nH
L271
C272
C273
0.1uF
L273
33nH
L281
390nH
C276
2.2uF
100pF
C281
R245
240
TX_INJ
RX_INJ
C286
0.1uF
VSF
13
8
7
10
12
PRESC
NU
C271
Rx_sw
Tx_sw
14
18
3
19
16
15
1
20
5
6
2
4
SUPER_FLTR
TRB_IN
TX_BASE
TX_EMITTER
TX_IADJ
FLIP_IN
RX_BASE
RX_EMITTER
RX_IADJ
COLL_RFIN
TX_SWITCH
RX_OUT
RX_SWITCH
TX_OUT
PRESC_OUT
U241
50U54
11
9
17
VCC_LOGIC
VCC_BUFFERS
GND_LOGIC
GND_BUFFERS
GND_FLAG
1
SH242
SHIELD
SH241
SHIELD
1
VCO BOTTOM SHIELD
VCO TOP SHIELD
AUX3
.01uF
C297
5V
2
4
10K
47K
47K
4.7K
10K
47K
47K
4.7K
1
3
Q260
1K
R260
DD
2
4
1
3
Q261
AUX4
100pF
C289
7.5K
R254
R252
330
C255
100pF
R251
18
2.4pF
C254
2
P2
3
P3
RESONATOR
L253
P1
1
1.5pF
C253
CR251
68nH
L251
C252
5.6pF
100pF
C251
CR241
A1
A2
1
2
C241
100pF
VCTRL
390nH
L241
CR242
CR243
L242
220nH
2pF
C244
C243
7.5pF
100pF
C247
0.1uF
C248
R253
7.5K
Tx_sw
30
R248
L282
390nH
VSF
2
BFQ67W
Q241
1
3
10K
R243
Rx_sw
C245
2.4pF
R244
12K
1
2
3
RESONATOR
L243
R241
18
100pF
C246
200
R242
C285
100pF
C242
7.5pF
C250
7.5pF
UHF Narrow Band (450-470MHz) Voltage Controlled Oscillator Schematic Diagram 8415563H06
Содержание GP-688
Страница 5: ...Compact Professional Portable Radios Service Maintainability Issue July 2007 ...
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Страница 24: ...2 6 MAINTENANCE THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 32: ...3 8 SERVICE AIDS THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 34: ...4 2 POWER UP SELF TEST THIS PAGE INTENTIONALLY LEFT BLANK ...
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Страница 52: ...2 10 TROUBLESHOOTING CHARTS THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 64: ...3 12 CONTROLLER KEYPAD SCHEMATICS ...
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Страница 137: ...PCB and Schematic Diagrams Radios without Keypad and Display EPP 3 85 Complete Controller Schematic Diagram 8415885H01 ...
Страница 140: ...3 88 PCB and Schematic Diagrams Radios without Keypad and Display EPP Controller Memory Schematic Diagram 8415885H01 ...
Страница 142: ...3 90 PCB and Schematic Diagrams Radios without Keypad and Display EPP THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 147: ...Compact Professional Portable Radios VHF 136 174MHz Service Information Issue July 2007 ...
Страница 150: ...iv ...
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Страница 192: ...3 20 VHF PCB Schematic Diagrams THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 195: ...VHF PCB and Schematic Diagrams EPP 3 23 VHF 136 174MHz Controls And Switches Schematic Diagram sht 1 of 2 8415533H02 ...
Страница 196: ...3 24 VHF PCB and Schematic Diagrams EPP VHF 136 174MHz Controls And Switches Schematic Diagram sheet 2 of 2 8415533H02 ...
Страница 197: ...VHF PCB and Schematic Diagrams EPP 3 25 VHF 136 174MHz Receiver Front End Schematic Diagram 8415533H02 ...
Страница 198: ...3 26 VHF PCB and Schematic Diagrams EPP VHF 136 174MHz Receiver Back End Schematic Diagram 8415533H02 ...
Страница 199: ...VHF PCB and Schematic Diagrams EPP 3 27 VHF 136 174MHz Synthesizer Schematic Diagram 8415533H02 ...
Страница 200: ...3 28 VHF PCB and Schematic Diagrams EPP VHF 136 174MHz Voltage Controlled Oscillator Schematic Diagram 8415533H02 ...
Страница 201: ...VHF PCB and Schematic Diagrams EPP 3 29 VHF 136 174MHz Transmitter Schematic Diagram 8415533H02 ...
Страница 202: ...3 30 VHF PCB Schematic Diagrams and Radio Parts List RF Radio EPP THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 208: ...3 36 VHF PCB Schematic Diagrams and Radio Parts List RF Radio EPP THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 218: ...3 46 VHF PCB Schematic Diagrams and Radio Parts List RF Board IP67 THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 224: ...3 52 VHF PCB Schematic Diagrams and Radio Parts List RF Board IP67 THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 237: ...Compact Professional Portable Radios UHF1 403 470MHz Narrow Band 450 470MHz Service Information Issue July 2007 ...
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Страница 328: ...3 70 UHF Narrow Band PCB Schematic Diagrams and Radio Parts List RF Board THIS PAGE INTENTIONALLY LEFT BLANK ...
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Страница 335: ...Compact Professional Portable Radios UHF2 450 527MHz Service Information Issue July 2007 ...
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Страница 348: ...1 10 THEORY OF OPERATION THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 356: ...2 8 TROUBLESHOOTING CHARTS THIS PAGE INTENTIONALLY LEFT BLANK ...
Страница 360: ...3 4 UHF2 PCB SCHEMATICS PARTS LISTS THIS PAGE INTENTIONALLY LEFT BLANK ...
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