Motorola MOTOTRBO XPR 7550e - Figure 7-19. Receiver Schematic Diagram

Circuit Board/Schematic Diagrams and Parts List for VHF 7-21
L0400
C0400
L0404L0403
L0402L0401
C0410C0408C0406
C0409C0407C0405
C0404C0402
C0403C0401
TL_RX_IN_SHIELD
IN
L0441
C0442
L0442
C0444
C0446 C0448 C0450
C0441 C0443 C0445 C0447
L0443
C0449
L0444
R0489
Q0424
Q0423
L0423
R0429
23
1
23
1
C0455
R0438
C0439
R0430
R0432
C0435
R0431
C0434
LNA_POSTFILTER
L445
C0429C0427
L0420
C0428 C0430
LNAO
21
DNP
R0499
R0435
C0438
C0451
C0431
R0425
C0425
C0423
C0432
L0422
L0421
R0426
C0433
C0426
C0424
R0424
D0420
PREFILTER_LNA
M2C
M1BC
2
3
1
R0445
Q0425
ASB
3
1
2
10K
47K
C0420
C0421
R0433
R0434
RX_VRF1_2.775V
DIG_RX_EN
IN
Q0421
4 1
3 6
52
B1
C1
E1
C2
B2
E2
Q0420
C0489
R0488
R0444
C0436
C0437
R0439
C0422
R0421
R0420
R0422
LNA_VCC
SLNA4
4
1
3
6
5
2
47K
10K
47K
10K
SH0401
2 1
E0496
DC_LIN_VRF1_2.775V
IN
C0499
C0497
RX_VRF1_2.775V
DIG_RX_RF_STEP
IN
C0487
R0487
E0480
Q0480
RX_VRF1_2.775V
3
1
4
5
2
E2
B1
E1
C2
C1
C0486
C0485
E0481
R0485
R0486
C0495
R0483R0482
R0481
C0484C0483
C0482C0481
C0480
R0480
U0480
6 4
1
3
5
2
J3
J2
GND
V1
V2
J1
C0496
R0484
U0481
RXFE_ATTEN_OUT
6 4
1
3
5
2
J3
J2
GND
V1
V2
J1
T0490
C0490
C0491
E0491
E0490
TL_RX_VHF_IN_SHIELD
TL_RX_VHF_INX_SHIELD
4
1
3
2
OUT
OUT
S2
S1
P2
P1
POSTFILTER_STEPATTEN
Figure 7-19. Receiver Schematic Diagram