Schematics, Boards Overlays, and Parts Lists
: Main Board Block: 700–800 MHz (84012501002)
8-65
Figure 8-36. Frequency Generation Unit Circuit – 2 of 2
DC_LIN_2_775V
DC_SUPER_FILTER_5V
DC_LIN_1_5V
DC_LIN_5V
NC7WZ04
NC7WZ04
U739
U739
DC_LIN_2_775V
GPO6
4
3
6
1
VCC
GND
NC7WZ04
U739
5
2
NC
V1
V2
V3
RFC
NC
RF1
RF2
RF3
CGND
0
DNP
SKY13251
R709
U738
7
6
3
1
8
5
4
2
G1
NC
NC
TXH
IN
NTZD3154N
Q785
4
1
5
2
3
6
NC
NC
NC
220PF
270
33PF
22NH
DNP
680
DNP
1000PF
120NH
L701
R757
C760
L755
R754
C753
C751
2
1
27PF
220PF
100NH
DNP
15
1PF
NE662M04
L768
C770
R761
C816
Q756
C813
2
1
3
1
2
4
30
33PF
180
180
C781
R707
R703
R704
RX_LO
OUT
6.2K
15
120NH
20K
.22UF
R769
R766
L759
C764
R762
DC_LIN_1_5V
120NH
560
1000PF
47PF
R776
L775
C773
C772
15
220PF
47PF
C780
R778
C777
TX_INJ
OUT
100
NE662M04
R779
Q774
3
12
4
100
220PF
33PF
BC858CD
18
300
300
56K
BC858CD
220PF
R799
R785
C803
Q767
R771
C819
Q767
R809
R763
C817
4
3
5
1
6
2
33PF
DNP
2
82
2
82K
220PF
22K
BC858CD
DNP
BC858CD
3
33PF
R823
R822
C824
Q745
R748
C786
Q745
R741
R742
R746
C740
4
3
5
1
6
2
.22UF
24
120NH
5.6K
R747
R744
C743
L739
DC_LIN_1_5V
VCO_IN
IN
100PF
3K
16
1000PF
33PF
C735
C733
R730
R728
C727
13
2
0
110
NE68519
8.2NH
6PF
L709
C705
R734
R736
Q731
2
1
100PF
TEST_POINT
100PF
DNP
C708
TP737
C823
RF_PRESCALAR
1
120NH
L758
DC_LIN_1_5V
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: ......