UHF PCB 8415234H05 450-470 MHz Narrow Band
3-169
100pF
C281
R245
240
390nH
L281
RX_INJ
TX_INJ
L273
33nH
L271
68nH
C272
NU
C276
2.2uF
0.1uF
C286
VSF
0.1uF
C273
C271
NU
10
13
8
7
12
Rx_sw
PRESC
Tx_sw
14
18
TX_OUT
TX_SWITCH
RX_OUT
RX_SWITCH
PRESC_OUT
50U54
U241
RX_IADJ
SUPER_FLTR
TRB_IN
TX_BASE
TX_EMITTER
TX_IADJ
COLL_RFIN
FLIP_IN
RX_BASE
RX_EMITTER
2
3
19
16
15
1
4
20
5
6
11 9
17
SHIELD
SH242
1
VCC_LOGIC
VCC_BUFFERS
GND_LOGIC
GND_BUFFERS
GND_FLAG
VCO TOP SHIELD
VCO BOTTOM SHIELD
SHIELD
SH241
1
4
10K
10K
47K
47K
47K
47K
4.7K
4.7K
1
3
2
C297
.01uF
AUX3
5V
Q260
DD
R260
1K
2
4
1
3
Q261
C289
100pF
AUX4
R254
7.5K
330
R252
C255
100pF
P2
2
R251
18
1
2.4pF
C254
P3
3
L253
RESONATOR
P1
5.6pF
C252
1.5pF
C253
CR251
68nH
L251
100pF
C251
R253
7.5K
Tx_sw
30
R248
L282
390nH
VSF
C248
0.1uF
1
3
2
Q241
BFQ67W
C247
100pF
2pF
C244
R243
10K
Rx_sw
CR242
CR243
L241
390nH
1
2
CR241
100pF
C241
220nH
L242
VCTRL
7.5pF
C242
7.5pF
C243
7.5pF
C250
18
R241
2.4pF
C245
3
L243
RESONATOR
1
2
100pF
C246
R244
12K
C285
100pF
200
R242
UHF Narrow Band (450-470MHz) Voltage Controlled Oscillator Schematic Diagram
Summary of Contents for GP series
Page 1: ...Professional Portable Radio Detailed Service Manual 6866558D03 P ...
Page 2: ...ii ...
Page 5: ...Professional Radio GP Series Service Maintainability Issue July 2007 ...
Page 14: ...x THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 16: ...xii THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 26: ...2 6 MAINTENANCE THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 32: ...4 2 Error Codes Notes ...
Page 33: ...Professional Radio GP Series Keypad and Flex Service Information Issue July 2007 ...
Page 36: ...iv THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 40: ...1 4 THEORY OF OPERATION THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 48: ...2 8 PCB Schematic Diagrams and Parts List Flexes THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 52: ...2 12 PCB Schematic Diagrams and Parts List Keypad THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 56: ...2 16 PCB Schematic Diagrams and Parts List Keypad THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 62: ...iv THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 72: ...3 4 CONTROLLER SCHEMATICS THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 92: ...3 24 Controller Set 3 PCB 8486458Z03 UHF 8486686Z02 UHF2 THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 98: ...3 30 Controller Set 4 PCB 8416256H02 UHF Controller Audio Power Amplifier Schematic Diagram ...
Page 101: ...Controller Set 5 PCB 8486743Z02 UHF 3 33 Controller Micro Processor Schematic Diagram ...
Page 102: ...3 34 Controller Set 5 PCB 8486743Z02 UHF Controller Interface Schematic Diagram ...
Page 103: ...Controller Set 5 PCB 8486743Z02 UHF 3 35 Controller Audio Power Amplifier Schematic Diagram ...
Page 104: ...3 36 Controller Set 5 PCB 8486743Z02 UHF THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 134: ...1 22 THEORY OF OPERATION THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 150: ...3 6 UHF PCB SCHEMATICS PARTS LISTS THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 160: ...3 16 UHF PCB 8480450Z03 Schematics THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 178: ...3 34 UHF PCB 8480587Z03 Schematics THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 182: ...3 38 UHF PCB 8480587Z03 Parts List THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 190: ...3 46 UHF PCB 8480587Z05 Parts List THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 200: ...3 56 UHF PCB 8480450Z13 14 Schematics THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 214: ...3 70 UHF PCB 8486458Z03 Schematics THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 228: ...3 84 UHF PCB 8415234H01 Schematics THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 244: ...3 100 UHF PCB 8415234H02 Schematics THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 250: ...3 106 UHF PCB 8415234H02 Parts List THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 270: ...3 126 UHF PCB 8415234H05 EPP Parts List THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 280: ...3 136 UHF PCB 8415234H08 Schematics THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 290: ...3 146 UHF PCB 8415234H08 Parts List THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 293: ...UHF PCB 8486743Z02 Schematics 3 149 UHF 403 470 MHz Receiver Front End Schematic Diagram ...
Page 294: ...3 150 UHF PCB 8486743Z02 Schematics UHF 403 470 MHz Receiver Back End Schematic Diagram ...
Page 295: ...UHF PCB 8486743Z02 Schematics 3 151 UHF 403 470 MHz Synthesizer Schematic Diagram ...
Page 297: ...UHF PCB 8486743Z02 Schematics 3 153 UHF 403 470 MHz Transmitter Schematic Diagram ...
Page 298: ...3 154 UHF PCB 8486743Z02 Schematics THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 316: ...3 172 UHF PCB 8415234H05 450 470 MHz Narrow Band THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 325: ...Professional Radio GP Series UHF2 450 527MHz Service Information Issue July 2007 ...
Page 342: ...1 14 THEORY OF OPERATION THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 352: ...2 10 TROUBLESHOOTING CHARTS THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 356: ...3 4 UHF2 PCB SCHEMATICS PARTS LISTS THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 384: ...3 32 UHF2 PCB 8485677Z02 GP1280 Schematics THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 386: ...3 34 Voice Storage Parts List GP1280 THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 394: ...3 42 UHF2 PCB 8485677Z03 GP1280 Parts List THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 404: ...3 52 UHF2 PCB 8486686Z02 Schematics THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 441: ...Professional Radio GP Series 800 MHz 806 870MHz Service Information Issue July 2007 ...
Page 444: ...iv THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 456: ...1 12 THEORY OF OPERATION THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 464: ...3 2 800MHz PCB schematics Parts list THIS PAGE INTENTIONALLY LEFT BLANK ...