Schematics, Boards Overlays, and Parts Lists
: Transceiver (RF) Boards: 700 – 800 MHz (84012266001 / PC000351A01)
8-269
Figure 8-124. Receiver Front End Circuit
CTRL_RX_78_SW1 = 0V, 700 PATH SELECTED
SW1 AND SW2 HAVE TO BE OPPOSITE
CTRL_RX_78_LNA_A = 3V (HIGH), LNA'S TURN ON
CTRL_RX_78_SW2 = 0V, 800 PATH SELECTED
3.3NH
RF_RX_78_LNA1_E
RF_RX_78_LNA1_F
30PF
RF_RX_78_SW2
CTRL_RX_78_SW2
RF_RX_8_F1OUT
7.5NH
IF
RF_RX_8_F1IN
RF_RX_78_LNA1_C
AS211334
DC_RX_78_LNA_E
DC_RX_78_LNA_B
DC_RX_78_LNA_C
RF_RX_78_LNA2_A
10
TL_RX_78
CTRL_RX_78_SW1
CTRL_RX_78_SW2
RF_RX_78_LNA2_F
0613952R23
DC_RX_78_LNA_I
DC_RX_78_LNA_J
33PF
10
B4232
0
33PF
0
BC858CD
1PF
1PF
CTRL_RX_78_SW2
RF_RX_7_SW3
RF_RX_78_SW3
RF_RX_7_F2IN
0
0
0613952R66
0
33PF
33PF
10NH
CTRL_RX_78_SW1
47PF
RF_RX_7_SW2
RF_RX_7_F1OUT
RF_RX_8_SW1
RF_RX_78_LNA2_C
0
10
RF_RX_8_SW4
DNP
5.1
10NH
10NH
12NH
8.2PF
0
RF_RX_78_SW1
CTRL_RX_78_LNA_A
33PF
33PF
NC7WZ04
CTRL_RX_78_LNA_B
3.3K
2.7PF
RF_RX_FE_B2_OUT
DC_RX_78_LNA_H
DC_RX_78_LNA_G
NC7WZ04
DC_RX_78_LNA_F
2.7
8.2NH
8.2NH
1.5PF
IF
DC_RX_78_LNA_D
33PF
AS211334
BC858CD
68
BC858CD
4.7UF
33PF
DC_RX_78_LNA_A
NC7WZ04
33PF
4.7UF
IF
33PF
DC_LIN_3V
IF
IF
IF
22K
82K
BC858CD
82K
68
33PF
2.7PF
1PF
30PF
15NH
2.4NH
5.1PF
3.3K
10
CTRL_RX_78_SW2
CTRL_RX_78_SW1
AS211334
33PF
0
MMBD352
RF_RX_8_SW2
9.1PF
4.7UF
RF_RX_78_LNA1_A
22K
MUN5212T
DC_LIN_1_8V_A
33PF
1PF
RF_RX_78_LNA2_D
B4232
RF_RX_8_F2IN
RF_RX_8_F2OUT
RF_RX_78_LNA1_B
BFR380F
4.7UF
RF_RX_7_SW4
0
CTRL_RX_78_SW1
AS211334
33PF
CTRL_RX_78_SW2
RF_RX_7_SW1
RF_RX_7_F1IN
RF_RX_8_SW3
BFR380F
RF_RX_78_LNA2_B
RF_RX_78_LNA2_E
RF_RX_7_F2OUT
CTRL_RX_78_SW1
V1
J1
V2
J2
GND
J3
IN1
OUT1
OUT2
GND4
GND3
GND2
GND1
IN2
V1
J1
V2
J2
GND
J3
22K
22K
IN1
OUT1
OUT2
GND4
GND3
GND2
GND1
IN2
V1
J1
V2
J2
GND
J3
GND
VCC
C402M20
C405M20
C431M20
C434M20
R410M20
5
34
Q403M20
R409M20
2
61
Q403M20
R412M20
L405M20
C433M20
C432M20
2
1
3
U407M20
C429M20
C428M20
L404M20
C424M20
C430M20
R411M20
L406M20
1
2
E402M20
R407M20
R408M20
L407M20
L408M20
6
1
U408M20
5
2
U408M20
4
3
U408M20
R413M20
3
1
2
D401M20
C485M20
R448M20
C484M20
R447M20
C487M20
1
IF401M20
1
IF402M20
1
IF403M20
1
IF405M20
1
IF404M20
1
IF406M20
L489M20
C488M20
C406M20
L491M20
C490M20
C492M20
R451M20
R450M20
R456M20
R457M20
R452M20
R453M20
C422M20
R454M20
R455M20
C423M20
C421M20
2
61
Q402M20
5
3
4
Q402M20
R402M20
R401M20
R403M20
R404M20
C404M20
C427M20
C425M20
C426M20
R405M20
R406M20
1
2
3
6
5
4
U402M20
1
2
3
6
5
4
U404M20
3
2
4
6
8
5
7
1
FL401M20
C412M20
1
2
3
Q401M20
1
2
E401M20
C413M20
L401M20
L402M20
2
1
3
U406M20
L403M20
C416M20
C419M20
C417M20
1
2
3
6
5
4
U405M20
C418M20
3
2
4
6
8
5
7
1
FL402M20
1
2
3
6
5
4
U403M20
C407M20
V1
J1
V2
J2
GND
J3
OUT1
OUT2
V1
J1
V2
J2
GND
J3
V1
J1
V2
J2
GND
J3
V1
J1
V2
J2
GND
J3
OUT
IN
IN
IN
NC
GND
VCC
IN
IN
Summary of Contents for APX 2000
Page 1: ...APXTM TWO WAY RADIOS APX 1000 APX 2000 APX 4000 APX 4000Li DETAILED SERVICE MANUAL ...
Page 4: ......
Page 6: ...iv Document History Notes ...
Page 8: ...Notes vi Commercial Warranty ...
Page 10: ...Notes ...
Page 22: ...xiv List of Figures Notes ...
Page 226: ...6 64 Troubleshooting Waveforms LF CW on Spectrum Analyzer Notes ...
Page 688: ...Index 4 Index Notes ...
Page 690: ...ii Notes ...
Page 700: ...xvi List of Figures Notes ...
Page 806: ...5 50 Troubleshooting Charts PA Failure Notes ...
Page 1008: ...8 178 Schematics Boards Overlays and Parts Lists Transceiver RF Boards UHF2 84012621001 Notes ...
Page 1062: ...8 234 Schematics Boards Overlays and Parts Lists Keypad Board M2 and M3 PC000261A01 Notes ...
Page 1064: ...ii Notes ...
Page 1068: ...Notes A 4 EMEA Warranty Service and Technical Support Further Assistance From Motorola ...
Page 1090: ...Glossary 10 Glossary Notes ...
Page 1094: ...Index 4 Index Notes ...
Page 1095: ......