8-126
Schematics, Boards Overlays, and Parts Lists
: Main Board Block: VHF (84012512001_A)
Figure 8-71. Receiver VCO Circuit
IF
IF
IF
IF3201M22
IF3202M22
IF3200M22
DC_SUPER_FILTER_5V
GPO1
GPO2
1
1
1
IN
IN
IN
0
100PF
R3200M22
C3200M22
DC_SUPER_FILTER_5V
GPO1
4.7K
47K
47K
10K
UMC5NT2
Q3232M22
5
3
1
4
2
150
150PF
9.1K
680NH
0.1UF
0.1UF
6.8K
150PF
680NH
C3213M22
C3215M22
L3223M22
R3218M22
R3222M22
C3224M22
C3226M22
L3229M22
R3233M22
NC
V1
V2
V3
RFC
NC
RF1
RF2
RF3
CGND
NC
1.2K
330PF
SKY13251
C3202M22
R3203M22
U3238M22
VCO_TX
7
6
3
1
8
5
4
2
G1
1.2K
3.3
24PF
NE68519
R3204M22
R3201M22
Q3227M22
C3235M22
240
39PF
68PF
680NH
27PF
C3220M22
C3219M22
C3225M22
R3231M22
L3230M22
13
2
1SV282
11.4NH
56PF
15PF
680NH
1SV282
IF
1000PF
36NH
12PF
5PF
1SV282
IF3203M22
C3204M22
D3207M22
D3209M22
L3205M22
D3206M22
D3208M22
L3210M22
C3214M22
C3211M22
C3212M22
L3216M22
C3217M22
VCTRL
1
IN
1SV282
100PF
IF
C3240M22
IF3242M22
VCO_OUT
1
OUT
GPO2
GPO1
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: ......