Schematics, Boards Overlays, and Parts Lists
: Main Board Block: UHF2 (84012616001)
8-175
Figure 8-99. Receiver Front End Circuit
INPORT
IF
IF1901M20
ANA_RX_FE_TUNE
1
IN
CTRL_RX_UHF1_LNA_A = 3V (HIGH), LNA'S TURN ON
IF
337
9.1K
INPORT
IF
INPORT
R1910M20
IF1903M20
IF1902M20
DC_LIN_1_8V_A
DIG_CTRL_RXU
1
1
IN
IN
440
63
10K
100PF
0.1UF
R1906M20
C1926M20
C1925M20
22K
22K
10K
Q1920M20
R1907M20
2
1
PREFILTER MODIFIED XTS5000
3.3PF
18NH
12PF
1SV305
18NH
3.6PF
2.7PF
2.7PF
7.2NH
4.7PF
3.3PF
4.7PF
1SV305
3.6NH
L1908M20
VR1905M20
C1935M20
C1929M20
C1928M20
C1953M20
C1952M20
VR1906M20
L1910M20
C1939M20
C1958M20
L1915M20
C1938M20
L1909M20
2
1
2
1
DNP
MMBD352
D1970M20
2
3
1
10
2.4PF
75PF
R1970M20
C1970M20
C1931M20
75K
BC858CD
100PF
4.7UF
MUN5212T
120K
Q1922M20
R1921M20
R1922M20
C1922M20
C1920M20
DC_RX_FE_UHF1_LNA_B_13A
CTRL_RX_FE_UHF1_LNA_B_13A
DC_RX_UHF1_LNA_C_13A
1
6
3
100PF
2.7
4.7UF
33
BC858CD
10K
347
INPORT
C1924M20
C1923M20
R1924M20
R1923M20
Q1922M20
E1921M20
R1925M20
ANA_RX_FE_TUNE
DC_RX_UHF1_LNA_D_13A
DC_RX_UHF1_LNA_A_13A
4
3
5
2
IN
100PF
BFR380F
0
47NH
18NH
10
9.1PF
1.2K
1.5PF
100PF
1.6NH
R1935M20
L1936M20
U1932M20
C1940M20
L1934M20
C1901M20
R1972M20
C1971M20
L1935M20
R1936M20
C1936M20
RF_RX_FE_UHF1_LNA_C_13A
RF_RX_FE_UHF1_LNA_E_13A
23
1
100PF
10K
0.1UF
9.1K
R1908M20
C1955M20
C1954M20
R1911M20
POSTFILTER MODIFIED XTS5000
18NH
2.7PF
15PF
3.6NH
3.6NH
18NH
2.7PF
5PF
1SV305
4.7PF
VR1908M20
L1913M20
C1963M20
L1914M20
C1961M20
L1912M20
C1960M20
C1959M20
C1942M20
L1917M20
2
1
5PF
3.3PF
1SV305
VR1907M20
C1957M20
C1956M20
2
1
10K
3.3PF
C1964M20
R1909M20
OUTPORT
3.9NH
IF
22PF
0
10NH
8.2PF
DNP
DNP
DNP
22PF
4PF
DNP
R1900M20
C1900M20
L1900M20
IF1904M20
C1932M20
C1903M20
C1930M20
L1901M20
RF_RX_UHF1_FE_OUT
1
OUT
IF
INPORT
IF1900M20
TL_RX_UHF1_FE_IN
1
IN
Содержание Astro APX 3000
Страница 1: ...APXTM TWO WAY RADIOS APX 3000 DETAILED SERVICE MANUAL ...
Страница 2: ......
Страница 4: ...Notes ...
Страница 6: ...vi Document History Notes ...
Страница 10: ...x Table of Contents Notes ...
Страница 12: ...xii List of Tables Notes ...
Страница 18: ...xviii List of Figures Notes ...
Страница 22: ...xxii CommercialWarranty Notes ...
Страница 46: ...3 20 Theory of Operation Main Board Notes ...
Страница 84: ...3 58 Theory of Operation Bluetooth Notes ...
Страница 147: ...Troubleshooting Waveforms Clocks 6 3 6 2 2 4 MHz Clock Trace 1 Trace recorded at R6113 Figure 6 2 4 MHz Clock Waveform ...
Страница 154: ...6 10 Troubleshooting Waveforms Audio SSI 6 3 4 BCLK Trace 1 Trace recorded at R6107 Figure 6 9 Audio SSI BCLK Waveform ...
Страница 156: ...6 12 Troubleshooting Waveforms RX SSI 6 4 2 DA Trace 1 Trace recorded at R2805 Figure 6 11 RX SSI DA Waveform ...
Страница 157: ...Troubleshooting Waveforms RX SSI 6 13 6 4 3 FSYNC Trace 1 Trace recorded at R2804 Figure 6 12 RX SSI FSync Waveform ...
Страница 159: ...Troubleshooting Waveforms TX SSI 6 15 6 5 2 DA Trace 1 Trace recorded at R2817 Figure 6 14 TX SSI DA Waveform ...
Страница 160: ...6 16 Troubleshooting Waveforms TX SSI 6 5 3 FSYNC Trace 1 Trace recorded at R2807 Figure 6 15 TX SSI FSync Waveform ...
Страница 161: ...Troubleshooting Waveforms SPI 6 17 6 6 SPI 6 6 1 CLK Trace 1 Trace recorded at R2803 Figure 6 16 SPI CLK Waveform ...
Страница 162: ...6 18 Troubleshooting Waveforms SPI 6 6 2 CS Trace 1 Trace recorded at R6602 Figure 6 17 CS Waveform ...
Страница 164: ...6 20 Troubleshooting Waveforms I2C BUS 6 7 2 SCL 5V Trace 1 Trace recorded at R2204 Figure 6 19 I2C Bus SCA 5V Waveform ...
Страница 165: ...Troubleshooting Waveforms I2C BUS 6 21 6 7 3 SDA Trace 1 Trace recorded at R6209 Figure 6 20 I2C Bus SDA Waveform ...
Страница 169: ...Troubleshooting Waveforms USB 6 25 6 10 USB 6 10 1 D Trace 1 Trace recorded at TP F_GCAI_USB Figure 6 24 USB D Waveform ...
Страница 170: ...6 26 Troubleshooting Waveforms USB 6 10 2 D Trace 1 Trace recorded at TP F_GCAI_USB Figure 6 25 USB D Waveform ...
Страница 172: ...6 28 Troubleshooting Waveforms SDRAM 6 11 2 CLKX Trace 1 Trace recorded at TP6308 Figure 6 27 SDRAM CLKX Waveform ...
Страница 208: ...6 64 Troubleshooting Waveforms LF CW on Spectrum Analyzer Notes ...
Страница 222: ...7 14 Troubleshooting Tables List of Board and IC Signals Notes ...
Страница 282: ...8 60 Schematics Boards Overlays and Parts Lists Main Board Block UHF1 84012513001_A Notes ...
Страница 338: ...8 116 Schematics Boards Overlays and Parts Lists Main Board Block 700 800 MHz 84012501002 Notes ...
Страница 390: ...8 168 Schematics Boards Overlays and Parts Lists Main Board Block VHF 84012512001_A Notes ...
Страница 456: ...9 8 Debugging Fixture Powering up Covert Board Notes ...
Страница 468: ...Glossary 10 Glossary Notes ...
Страница 472: ...Index 4 Index Notes ...
Страница 473: ......