Motorola Mototrbo - Page 178

2-6 VHF (136–174 MHz) 25–45W PCB/Schematics/Parts List
DNP
ROD_FE_ATTEN
RXFE_ATTEN
R0427
R0446
E0403
R0447
E0404
ATTEN
UP_RXFE_ATTEN
RO_RXFE_ATTEN
1
1
IN
IN
R0433
Q0404
RXFE_9R1_FILT
1 3
2
STEP ATTENUATOR 2
4 6 5
L0409
L0408
R0432
R0431
C0427
D0403
C0451
DNP
L0418
D0401
2
3
1
C0430
PA_RXFE_IN
RXFE_IN
1
IN
PRESELECTOR
C0423C0405
C0403
2 1
2 1
SH0401
SH0400
R0405
C0409
C0462 R0407
R0406
Q0401
C0410 C0408
C0426
4 1
3
6
52
B1
C1
E1
C2
B2
E2
C0412 C0467
D0402
L0403
C0414
2
1
C0436
R0412
C0418
R0415
C0469
L0404
C0458
DNP
R0414
R0413
C0417
Q0402
C0419
R0448
12
3
SH0402
SH0403
2
1
2
1
C0463
C0438
R0440
R0442
L0415
RXFE_9R1_FILT
C0445
L0424
L0421
C0441
C0439
INJECTION FILTER
DNP
C0442
C0448
C0447
L0428
C0446 C0443
C0440
C0416
R0438
R0439
Q0405
12
3
R0445 L0414 R0435
R0434
C0437
R0441
R0437 C0433
C0435C0444R0444C0401
L0401
VCO_FE_LO_INJ
R0420
RXFE_LO_INJ
1
IN
DNP
E0402
ROD_RXFE_TUNE
R0430
R0409
C0413
RXFE_TUNE
1
IN
VOLTAGE MULTIPLIER
DNP
C0464
R0417
R0416
Q0403
R0410
RXFE_9R1_FILT
5
1
4
6
3
2
R0419
R0418
R0411
R0402
C0402
FE_TUNE_MULT
C0453C0452
VR0401
L0405
VR0400
C0404
21
21
R0404
VR0403
VR0402
FE_TUNE_MULT
21 21
R0408L0402
C0400
C0407
C0415C0411
R0429
C0406
3
E0401
ROD_RXFE_9R1
RXFE_9R1
1
IN
R0426
RXFE_9R1_FILT
ATTEN
Q0400
R0400
4
1 3
6 5
2
R0403
RXFE_9R1_FILT
STEP ATTENUATOR 1
L0463
R0401
L0462
R0465
C0434
D0400
C0461
R0425
R0424
R0422
DNP
DNP
DNP
L0416
C0459
C0431
C0424
C0456
C0425
POSTSELECTOR
C0429
C0455
C0421
C0428
C0422
C0454
VR0407
VR0406
VR0405
VR0404
21 21
21
21
L0411
L0410
L0407
R0423
FE_TUNE_MULT
T0401
1
2
3
6
4
5
NC
S3
S2
S1
P2
P1
D0404
4
3
21
IO1
IO3
IO4
IO2
T0400
C0449
1
2
3
6
4
5
NC
S3
S2
S1
P2
P1
R0421
C0420
FE_TUNE_MULT
HI-SIDE ZERO FOR POSTSELECTOR (18MM)
L0417
C0457
RXFE_BE_OUT
R0443
L0434
C0450
RXFE_OUT
1
OUT
L0406
VHF (136–174 MHz) 25–45W Receiver Front-End Schematic Diagram