Motorola 6864115B62-C Detailed Service Manual page 301

UHF 25-40W PCB 8480643Z06 / Schematic
PASUPVLTG
L4402
PASUPVLTG
PASUPVLTG_UHF_PA_1
57R01
C4481
C4485 C4602 C4632
3000pF NU
30pF .033uF
R4633
NU VR4472
5.6V
NU
ALT
9V3
9V3_UHF_PA_1 L4403
R4497
390nH
C4418
C4488 51
C4404
0.1uF
100pF L4401
11.03nH
C4486
100pF
30pF
C4403
3.9pF
L4411
TX_INJ_UHF_PA_1 390nH
R4405
C4407
TXINJ
200
0.1uF
4 to 6 dBm
C4462
R4433
NU
NU
C4417
6
RFIN RFOUT1
7
16
RFOUT2
100pF
14 VD1 2
C4401 VG1
C4410
11 G2 3
VG2
100pF
100pF 1 VCNTRL
8 NC1
9 NC2 U4401
R4402
10 NC3 30C65
15 NC4
15
R4401 R4403
300
300
Load
R4487
100K
R4427
10K
R4412
C4416
5.6K
R4488
.022uF
2.7K
R4411
NU
C4414
R4428
1000pF 4.7K
4.5 VDC (44W)
4.4 VDC (28W)
TP4533
CNTLVLTG_UHF_PA_1
R4514
CNTLVLTG
3.3K
C4495
C4484 C4490
1000pF
C4436
30pF NU
C4497
C4421 10uF
C4489
1000pF
.033uF NU
L4541
57R01
L4474
BLM31A02PT
9V3
NU
9V3
R4495
51
R4525
L4543
C4483
NU
13.85nH
100pF
C4412
C4487
Load
30pF 100pF
C4409
0.1uF
C4424
C4431
30pF
NU
R4414
NU
6 Q4421
C4453
2 NU
C4461 C4447 C4419
NU NU 36pF
C4455
NU
R4415
R4416
100
100
D4402
R4459
NU
3.7 to 3.9 VDC NU
TP4536
R4481
NU
Q4451
C4456
C4457
C4426
C4425 C4446
R4408
NU NU
100pF
.022uF 20K 100pF
R4480
PCIC_MOSBIAS_1
10K
R4431
NU
R4422
620
9V3
R4423
620
R4424
6.5 VDC (44W)
Q4473
620 6.2 VDC (28W)
R4425
620
C4478
C4493
1000pF C4482
C4438
NU
30pF 0.1uF
L4421
57R01
C4422 C4439
C4423
100pF 100pF
1uF
R4600
4.7
C4435
C4432
C4449
Q4431 27pF
30pF
33pF
R4601 MRF5015
C4450
7
4.7
G1
16pF
8
G2
9
C4460
R4602 G3
G4 10
39pF
G
4.7
C4434 L4440
C4420
57R01
39pF 43pF
C4437
NU
D4403
NU
R4486
R4607
R4631 R4485
120
1K NU
120
R4476
NU
R4632
C4630
24K
0.1uF
C4476 C4520
R4630
NU NU NU
TP4537
2.4 to 2.6 VDC
BIAS_2_UHF_PA_1
MOSBIAS_2
PA_PWR_SET_1_UHF_PA_1
PA_PWR_SET PA_PWR_SET
A+
L4436
57R01
L4437
R4471
17nH
NU
Q4441
MRF650 2
C4441 C4443
4
30pF 6.8pF C4466 C4465
NU
NU
3
C4442 C4444 C4491
10pF
39pF NU C4459
1 100pF
L4441
13.85nH
R4409
9V3
D4451
100K R4473 C4452
4.3K NU
R4421
10
D4453
R4506
R4474 10K R4472
NU
100K
C4507
C4464
100pF C4499
C4470
100pF R4513
NU
A+
NU
10K
R4507
10K VR4471
5.6V
R4512
Q4471
470
3.11 VDC (44W)
9.2 VDC
2.2 VDC (28W)
TP4530
TP4531
R4475
R4504
0
10K
R4455 K9V1_UHF_PA_1
C4451
NU K9V1
NU
TEMPSENSE_UHF_PA
TEMPSENSE
9V3
1 U4502 0.75 VDC
TP4532
POS
2
VOUT
GND
3
LM50
UHF (403-470MHz) Power Amplifier 25-40W
4-15
1 J4401-1
J4401-2
2
3 J4401-3
C4492
D4471 L4493 L4492
L4491
17nH 17nH 17nH
100pF
C4496 R4491
R4457
C4494 C4448 5.6pF 11K
C4469
120
10pF 12pF
C4498
100pF
6.8pF
C4463
NU
D4452
C4474
VR4473 L4472
12pF
RX_IN_VHF_PA_1
17nH
5.6V
RXIN
C4475
C4480
D4472 NU 2pF
R4496
L4473
82
43.67nH
C4472
R4511
36pF
C4510
51
36pF
C4473
C4479
100pF
100pF
Q4472
9V3
PCIC_MOSBIAS_1
CLK_VHF_PA_1 25 GND2 V45
16
C4505
CLK 26 CLK VG 15
R4492
1uF
DATA_VHF_PA_1 27 BPOS V10
9V3 14
U4501
DATA 28 DATA CQX 13
CSX 29 CEX CQ
H99S-4
12
10K
CSX_VHF_PA_1 30 TEMP Q
11
RSET QX
31 10
ANO F168
9
32
C4506
R4482
2200pF
9V3 300K
R4484
R4501 3.1 VDC (44W)
2.2 VDC (28W)
C4504
68K
5.6K PA_PWR_SET
.02uF
C4502
R4502 C4521
.015uF R4483
68K 100pF
R4503
C4522
100K
1000pF 3.9K
ALT
C4503
R4523
2200pF
NU
ZWG0130271-A