Motorola Mototrbo - Page 254

2-6 UHF1 (403–470 MHz) 25–40W PCB/Schematics/Parts List
2
DNP
R0446
E0403
ROD_FE_ATTEN
R0447
E0404
RXFE_ATTEN
ATTEN
RO_RXFE_ATTEN
UP_RXFE_ATTEN
1
1
IN
IN
R0433
Q0404
R0427
RXFE_9R1_FILT
4
1 3
6 5
2
10 DB
STEP ATTENUATOR 2
L0413
R0432
L0412
R0431
D0403
C0451
C0403
C0427
D0401
2
3
1
DNP
L0418
PA_RXFE_IN
C0430
RXFE_IN
21
1
IN
FE_TUNE_MULT
ROD_RXFE_9R1
C0469
E0401
C0464
C0410
C0408
C0426
RXFE_9R1
1
IN
PRESELECTOR
SH0400
SH0401
C0423C0405
2
1
2
1
C0453C0452
C0404
VR0403 VR0402
VR0401
L0405
VR0400
21
21 21 21
L0406L0401
DNP
R0402
C0402
C0463
VOLTAGE MULTIPLIER
DNP
C0462
C0461
DNP
R0416
R0420
R0410
R0430
Q0403
RXFE_9R1_FILT
5
1 4
3
2
R0411
ROD_RXFE_TUNE
R0409
C0413
E0402
C0465
RXFE_TUNE
1
IN
6
INJECTION FILTER
C0449
C0448
C0446
L0424
C0443
C0442
L0421C0441C0439
R0438
R0437
C0447
L0428C0445
C0444
R0442
C0440
L0415
R0439
Q0405
C0436
4
31
C0433
L0414
R0434 R0445
C0435R0436R0444
R0435
VCO_FE_LO_INJ
R0417
R0418
C0468
R0419
RXFE_LO_INJ
1
IN
C0437
R0441
INJECTION AMP
C0438
R0440
RXFE_9R1_FILT
C0400
C0407
R0404
R0408
L0402
FE_TUNE_MULT
D0402
C0415
C0411
C0406
R0429
2
3
1
R0407
C0458
L0403
C0416
C0414
R0405 C0409
R0412
Q0402
C0412
4
3
1
2
R0448
C0418
C0419
R0415
L0404
C0417
R0414 R0413
LNA
R0406
Q0401
4 1
3
6
52
B1
C1
E1
C2
B2
E2
RXFE_9R1_FILT
R0426
ATTEN
Q0400
R0403
RXFE_9R1_FILT
4
1 3
6 5
2
10 DB
STEP ATTENUATOR 1
L0409
L0408
R0400
C0460
R0401
POSTSELECTOR
C0424
C0456C0429C0428
C0421
C0434
D0400
1.5 DB PAD
R0424
R0422
C0459
L0416
R0425
C0431
C0425
R0423
C0422
FE_TUNE_MULT
C0455
VR0407 VR0406
L0410
C0454
VR0405 VR0404
21 21 21 21
MIXER
L0411L0407
R0421
C0420
FE_TUNE_MULT
SH0402
SH0403
2
1
2
1
T0400
1
2
3
6
4
5
NC
NC
S3
S2
S1
P2
P1
D0404
4
3
21
IO1
IO3
IO4
IO2
T0401
1
2
3
6
4
5
NC
S3
S2
S1
P2
P1
NC
L0417
C0457
RXFE_BE_OUT RXFE_OUT
1
OUT
L0434
R0443
C0450
UHF1 (403–470 MHz) 25–40W Receiver Front-End Schematic Diagram