8-10
Schematics, Boards Overlays, and Parts Lists
: Transceiver (RF) Boards: VHF/700–800
Figure 8-9. MNUR4001B/D 700–800 MHz Receiver Front End Circuit
IN
IN
CTRL_RX_78_SW1 = 0V, 700 PATH SELECTED
CTRL_RX_78_LNA_A = 3V (HIGH), LNA'S TURN ON
CTRL_RX_78_SW2 = 0V, 800 PATH SELECTED
SW1 AND SW2 HAVE TO BE OPPOSITE
CTRL_RX_78_LNA_A
DC_LIN_1_8V_A
TL_RX_78
IN
R408
R407
E402
C430
1
6
Q403
R409
BC858CD
6.8PF
3.3K
82K
22K
2
1
L406
R411
L404
C428
C429
U407
C432
C433
L405
R412
2
4
3
5
Q403
R410
C434
C431
RF_RX_FE_B2_OUT
10
2.7
33PF
3PF
12NH
12NH
.5PF
4.7UF
33PF
68
4.7UF
4.7NH
BFR380F
BC858CD
OUT
2
3
1
22K
22K
2
3
1
Q401
MUN5212T
2
1
E401
BC858CD
Q402
R404
R403
R401
R402
4
3
5
1
6
2
Q402
68
82K
3.3K
22K
BC858CD
R413
C427
C424
4.7UF
33PF
2.7
L403
2
3
1
U406
L402
L401
R406
R405
C426
C425
C421
C423
C422
12NH
2.7
2.4NH
4.7UF
12NH
33PF
6.8PF
10
BFR380F
3PF
1PF
IN2
GND1
GND2
GND3
GND4
OUT2
OUT1
IN1
8
6
4
2
FL401
B4232
J3
GND
J2
V2
J1
V1
C402
33PF
CTRL_RX_78_SW1
U402
AS211334
6
CTRL_RX_78_SW2
5
4
0
0
C408
1
3
2
C409
C404
C406
33PF
33PF
3
1
L408
C416
C413
33PF
CTRL_RX_78_SW1
47PF
10NH
J3
GND
J2
V2
J1
V1
L407
5
7
6
4
1
3
5
2
U404
C418
C412
15PF
7.5NH
33PF
AS211334
CTRL_RX_78_SW2
IN2
GND1
GND2
GND3
GND4
OUT2
OUT1
IN1
5
7
3
1
8
6
4
2
FL402
B4232
J3
GND
J2
V2
J1
V1
C415
6
4
1
3
5
2
U405
C414
C417
C419
0
AS211334
CTRL_RX_78_SW2
CTRL_RX_78_SW1
33PF
33PF
0
J3
GND
J2
V2
J1
V1
C405
C407
6
4
1
3
5
2
U403
C411
C410
AS211334
CTRL_RX_78_SW2
0
33PF
33PF
CTRL_RX_78_SW1
0
NC
4
3
U408
NC7WZ04
CTRL_RX_78_SW2
U408
6
1
U408
NC7WZ04
DC_LIN_3V
NC7WZ04
CTRL_RX_78_SW1
IN
IN
VCC
GND
5
2
Summary of Contents for ASTRO APX 7000
Page 1: ......
Page 4: ...iv Document History Notes ...
Page 24: ...2 4 Radio Power DC Power Routing VOCON Board Notes ...
Page 98: ...3 74 Theory of Operation Global Positioning System GPS ...
Page 163: ...Troubleshooting Charts PA Failure 5 59 ...
Page 164: ...5 60 Troubleshooting Charts PA Failure ...
Page 276: ...7 58 Troubleshooting Tables List of Board and IC Signals Notes ...
Page 318: ...8 42 Schematics Boards Overlays and Parts Lists Transceiver RF Boards VHF 700 800 Notes ...
Page 380: ...8 104 Schematics Boards Overlays and Parts Lists Transceiver RF Boards UHF1 700 800 MHz Notes ...
Page 432: ...8 156 Schematics Boards Overlays and Parts Lists Transceiver RF Boards UHF1 VHF Notes ...
Page 458: ...8 182 Schematics Boards Overlays and Parts Lists Transceiver RF Boards UHF1 UHF2 Notes ...
Page 498: ...8 222 Schematics Boards Overlays and Parts Lists Transceiver RF Boards UHF2 700 800 MHz Notes ...
Page 546: ...8 270 Schematics Boards Overlays and Parts Lists Transceiver RF Boards UHF2 VHF Notes ...
Page 606: ...8 330 Schematics Boards Overlays and Parts Lists VOCON Boards Notes ...
Page 638: ...Glossary 10 Glossary Notes ...
Page 643: ......