Motorola 6864115B62-C Detailed Service Manual page 379

LB Range1, 25-60W PCB 8486206B06 / Schematics
MOSBIAS_2_SW
TP1402
R1465
MOSBIAS_2_PA_1
3.3K
1.8V-2.2V
MOSBIAS_2
R1424
27K
R1415
10
FN0:NP
R1413
10
12Vpp
R1412
10
FN0:NP
R1414
10
MOSBIAS_3_SW
TP1403
MOSBIAS_3_PA_1
R1464
1.8V-2.2V
MOSBIAS_3
3.3K
R1425
27K
R1469
9V3 U_PREDRIVER
0
R1470
R1468
2.4K
2.2K
FN0:NP
FN0:NP
R1467
39K
4
Vint U1402
3
MC33072
FN0:NP
1
2 8
R1482
0
R1466
39K TXINJ_PA_1
FN0:NP
TXINJ
R1440
VCNTRL
C1473
C1474
0.1uF .01uF
C1463
1uF
PASUPVLTG
R1407
DEVICE NEAR INSIDE OF RADIO
10K
C1425
L1413
C1421
C1423
88.470nH
.01uF
.01uF
1uF
FN0:NP
R1405
51
Q1403
D
R1419 R1423
GND1
C1419
10 10 GND2
G
C1427
R1417 R1421 470pF
.01uF
10
10
R1416 R1420
Q1402
C1428
C1420
10 10
470pF
G
R1422
R1418 GND2
.01uF
GND1
10 10
R1404
51
88.470nH
DEVICE NEAR OUTSIDE OF RADIO
R1406
10K
C1426
C1422
C1424
.01uF
.01uF
1uF
FN0:NOTPLACED
C1484
R1478 2200pF
10K
PASUPVLTG
R1477
6 8
R1484
PASUPVLTG
7
3.3K
MC33072
R1472 10K
5
4 1K
U1402
R1475
10
R1473
R1474 R1479
10 R1476
10 3.3K
10
U_DRIVER
R1483
E1401
C1410
240
C1460
R1471
R1443
0.1uF
0.1uF
1K
0 C1404
L1402
FN0:NP .01uF
C1402 4.7uH
L1401
.01uF C1403
6.8nH
6.2pF
FN0:NP
FN0:NP
L1403 R1444
16 220
6
4.7uH
RFIN RFOUT1
1 7
VCNTRL RFOUT2
C1401 1.75Vpp
14 2
VD1 VG1
.01uF
11 3
G2 VG2
U1401
C1467
8 82pF
30C65
NC1
9
NC2
100
10
NC3
15
R1441
NC4 R1445 C1405
C1406
10K
FN0:NP 330pF
6.2K .01uF
FN0:NP
C1407 C1408
R1446
330pF
5.6K
.01uF
FN0:NP
FN0:NP
C1464 C1465 C1466
R1455
R1451 R1453
R1454
180
180 180 1uF 180
.01uF .01uF
FN0:NP
PASUPVLTG_PA_1
PASUPVLTG
C1435 C1436
1uF .01uF
C1458
10uF
R1409
.01
C1431 C1433
10uF
1uF
.01uF
C1459
FSWB
27Vpp
C1429 C1477 C1437 C1439 C1481
470pF 470pF
470pF 470pF 430pF
L1425 L1415
41nH 41nH
72.462nH
78Vpp
L1416
41nH
C1430 C1478 L1426 C1480
C1438 C1440
470pF 470pF 41nH
100pF
470pF 470pF
27Vpp
L1414
C1432
C1434
C1462
1uF .01uF
10uF
U_DRIVER
1.8-2.2V
TP1401
Q1404
FN0:NP
R1460
R1480
R1463 0.1
1%
PCIC_MOSBIAS_1
27K 12K
C1529
C1472
FSWB2
0.1uF 0.1uF
MOSBIAS_1_SW
C1414
U_PREDRIVER
.01uF
E1403
C1475
R1447
R1448
1uF
0 150K
C1491
C1482 C1468
L1406
FN0:NP 1000pF
1uF .01uF 250.974nH
FN0:NP
R1450
13Vpp
820
C1461
Q1401
.01uF
L1404 R1402 R1449
R1458
R1459
390
180nH 390 390
390
C1413
R1457
1.6Vpp
10
.01uF
L1405
120nH
POS
FN0:NP
9T1
R1410
130
C1456
D1402
2Vdc L1420 100pF
250.974nH
L1419
C1445
27uH
.01uF
C1447
L1421
217.576nH
470pF
C1450
D1401
C1448
189Vpp C1451
C1449 3pF
C1446
FN0:NP
82pF 130pF
220pF
470pF
C1443
C1444
470pF
470pF
C1479
180pF
L1417
L1418
184.518nH
143Vpp
C1441 C1442
200pF 75pF
FN0:NP
Peak-to-Peak voltages (Vpp) are typical values which would be
measured by an oscilloscope under the following conditons:
1) Battery Voltage = 13.6V
2) Pout =66W at 33MHz
C1471
C1470
1uF
.01uF
C1415
C1469
1uF
.01uF
C1476
C1417
.01uF 1000pF C1418
.01uF
C1416 L1424
L1408
75pF 56nH
120nH
FN0:NP FN0:NP
M1401
HEATSINK
LB1 (29.7-36.0 MHz) Power Amplifier Sheet 1 of 2
4-7
C1457
RXIN_PA_1
RXIN
.01uF
R1481
TSENSE
51K
C1485
.01uF
L1422 L1423
139.750nH 124.327nH
C1452
C1454 J1401
186Vpp
C1455
56pF 56pF R1411
C1453 10K
18pF
C1486
160pF
75pF
FL0830687-O