Schematics, Boards Overlays, and Parts Lists
: Main Board Block: UHF2 (84012616001)
8-179
Figure 8-103. Transmitter VCO Circuit
DC_SUPER_FILTER_5V
GPO2
GPO1
IN
IN
IN
24NH
1SV279
1SV279
1SV279
390NH
IF
100PF
TEST_POINT
0
1SV279
D3137M22
D3138M22
D3135M22
L3134M22
D3136M22
C3133M22
TP3100M22
R3101M22
IF3105M22
L3139M22
VCTRL
1
1
2
1
2
1
2
1
2
1
IN
100PF
390NH
8.2K
390NH
0.1UF
8.2K
100PF
150
0.1UF
C3144M22
C3142M22
C3157M22
R3158M22
R3146M22
R3149M22
C3155M22
L3158M22
L3150M22
4.3PF
4.3PF
4.3PF
2.7PF
DNP
C3103M22
C3141M22
C3140M22
C3147M22
DNP
36
4.7PF
150
150
0
10PF
100PF
C3114M22
L3102M22
C3112M22
R3109M22
R3107M22
R3108M22
C3160M22
VCO_TX
NE856
Q3156M22
13
2
7.5PF
51PF
6.2PF
2PF
9NH
270NH
C3151M22
C3152M22
L3145M22
C3143M22
L3159M22
C3154M22
100PF
150
C3106M22
R3160M22
DC_SUPER_FILTER_5V
GPO2
4.7K
47K
47K
10K
UMC5NT2
Q3161M22
3
1
2
4
5
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: ......