Schematics, Boards Overlays, and Parts Lists
: Main Board Block: VHF (84012512001_A)
8-129
Figure 8-74. Frequency Generation Unit Circuit - 2 of 2
DC_SUPER_FILTER_5V
DC_LIN_5V
DC_LIN_1_5V
DC_LIN_2_775V
GPO2
GPO1
V1
V2
V3
RFC
NC
RF1
RF2
RF3
CGND
DNP
0
SKY13251
R709M7
U738M7
TXH
7
6
3
1
8
5
4
2
G1
IN
NC
NC
1
2
3
NC
NTZD3154N
Q785M7
4
5
6
NC
NC
22NH
22PF
22PF
220PF
C781M7
C791M7
C790M7
L704M7
RX_LO
OUT
68PF
24PF
47PF
47PF
220PF
560
1000PF
100NH
DNP
C780M7
C779M7
C778M7
R776M7
L775M7
C773M7
C777M7
C772M7
TX_INJ
OUT
33
.22UF
390NH
6.2K
R769M7
R766M7
L759M7
C764M7
DC_LIN_1_5V
BC858CD
BC858CD
100
20K
Q767M7
R771M7
Q767M7
R762M7
4
3
5
1
6
2
DNP
300
DNP
3PF
220PF
56K
220PF
300
220PF
R799M7
R785M7
C803M7
C819M7
C809M7
R763M7
C817M7
8.2
10PF
18NH
220PF
10PF
NE662M04
220PF
820
20PF
C770M7
C768M7
L765M7
C760M7
R754M7
R761M7
C816M7
Q756M7
C813M7
DC_LIN_1_5V
2
1
3
12
4
270
390NH
1000PF
.1UF
R757M7
L755M7
C753M7
C751M7
390NH
L739M7
DC_LIN_1_5V
24
220PF
24
1.8NH
BC858CD
20
BC858CD
220PF
220PF
.22UF
82
5.6K
82K
22K
DNP
DNP
R823M7
R822M7
C824M7
R747M7
Q745M7
R748M7
C786M7
R744M7
C743M7
Q745M7
R741M7
R742M7
L746M7
C740M7
4
3
5
1
6
2
VCO_IN
IN
TEST_POINT
1000PF
DNP
1.2K
300
0
NE68519
22NH
1000PF
33PF
300
18
390NH
1000PF
1000PF
30PF
1.8K
1000PF
100PF
C722M7
R711M7
R710M7
C701M7
C708M7
L709M7
C705M7
TP737M7
C823M7
L758M7
C735M7
C733M7
R734M7
R736M7
R730M7
Q731M7
R728M7
C727M7
RF_PRESCALAR
1
13
2
NE662M04
Q774M7
3
12
4
Summary of Contents for Astro APX 3000
Page 1: ...APXTM TWO WAY RADIOS APX 3000 DETAILED SERVICE MANUAL ...
Page 2: ......
Page 4: ...Notes ...
Page 6: ...vi Document History Notes ...
Page 10: ...x Table of Contents Notes ...
Page 12: ...xii List of Tables Notes ...
Page 18: ...xviii List of Figures Notes ...
Page 22: ...xxii CommercialWarranty Notes ...
Page 46: ...3 20 Theory of Operation Main Board Notes ...
Page 84: ...3 58 Theory of Operation Bluetooth Notes ...
Page 208: ...6 64 Troubleshooting Waveforms LF CW on Spectrum Analyzer Notes ...
Page 222: ...7 14 Troubleshooting Tables List of Board and IC Signals Notes ...
Page 282: ...8 60 Schematics Boards Overlays and Parts Lists Main Board Block UHF1 84012513001_A Notes ...
Page 390: ...8 168 Schematics Boards Overlays and Parts Lists Main Board Block VHF 84012512001_A Notes ...
Page 456: ...9 8 Debugging Fixture Powering up Covert Board Notes ...
Page 468: ...Glossary 10 Glossary Notes ...
Page 472: ...Index 4 Index Notes ...
Page 473: ......