Motorola CDM Series Detailed Service Manual page 361

Low Band Range 1 (29.7–36 MHz) PCBs, Schematics, and Parts Lists
MOSBIAS_2_SW
TP1402
R1465 R1407
MOSBIAS_2_PA_1
3.3K
1.8V-2.2V
MOSBIAS_2
C1425
R1424 C1423
27K
.01uF
1uF
R1415
10 R1419
FN0:NP 10
R1413 R1417
10 10
12Vpp
R1412
10 R1416
FN0:NP 10
R1414 R1418
10 10
MOSBIAS_3_SW
TP1403
MOSBIAS_3_PA_1
R1464 R1406
1.8V-2.2V
MOSBIAS_3
3.3K
C1426
R1425 C1424
27K .01uF
1uF
PASUPVLTG
R1472
R1469
R1473
9V3 U_PREDRIVER
0
R1470
R1468
2.4K
2.2K
FN0:NP
FN0:NP U_DRIVER
R1467
39K
4 U1402
Vint R1471
3
MC33072
FN0:NP
1
0
2 8
FN0:NP
R1482
0
R1466
TXINJ_PA_1
39K
FN0:NP
TXINJ C1401
.01uF
R1440
VCNTRL
100
C1473 C1474 R1441
0.1uF .01uF 10K
FN0:NP
C1463 C1464
R1451
.01uF 180
1uF
PASUPVLTG_PA_1
PASUPVLTG
DEVICE NEAR INSIDE OF RADIO
10K
C1431
.01uF
L1413
C1421
88.470nH
.01uF
FN0:NP
R1405
51
Q1403
D
R1423
GND1
C1419
10 GND2
G
C1427 C1429
R1421 470pF 470pF
.01uF
10
R1420
Q1402
C1428 C1430
C1420
10 470pF 470pF
G
R1422
GND2
.01uF
GND1
10
R1404
51 L1414
88.470nH
DEVICE NEAR OUTSIDE OF RADIO
10K
C1422
.01uF
FN0:NOTPLACED
C1484
2200pF
R1478
1.8-2.2V
10K
PASUPVLTG TP1401
Q1404
FN0:NP
R1477
6 8
R1484 R1480
7
3.3K MC33072
10K
5
1K 27K
4
U1402
C1529
R1475 0.1uF
10
R1474 R1479
10 R1476
10 3.3K
10
U_PREDRIVER
R1483
E1401
C1410 C1475
C1460 240
R1443
0.1uF 1uF
0.1uF
1K
C1404
L1402
.01uF
C1402 4.7uH
L1401
.01uF C1403
6.8nH
6.2pF
FN0:NP
FN0:NP
R1444
L1403
220
16 6
4.7uH
RFIN RFOUT1
1 7
VCNTRL RFOUT2
1.75Vpp
14 2
VD1 VG1
11
3
G2 VG2
U1401 C1467 L1404
180nH
8 82pF
30C65
NC1
9
C1413
NC2
10
NC3
15
NC4 R1445 C1405
C1406
.01uF
330pF
L1405
6.2K .01uF
120nH
FN0:NP
C1407 C1408
FN0:NP
R1446
330pF
5.6K
.01uF
FN0:NP
FN0:NP
C1465 C1466
R1455
R1453
R1454
180
180 1uF .01uF 180
FN0:NP
PASUPVLTG
C1435 C1436
1uF .01uF
C1458
10uF
R1409
.01
C1433
10uF
1uF
C1459
FSWB
27Vpp
C1477
C1437 C1439 C1481 C1479
470pF
470pF 470pF 430pF 180pF
L1425 L1415
41nH 41nH
L1417
184.518nH
72.462nH
78Vpp
143Vpp
L1416
41nH
C1478 L1426
C1480
C1438 C1440
C1441
470pF 41nH
100pF
470pF 470pF
200pF
FN0:NP
27Vpp
C1432
C1434
C1462
1uF .01uF
10uF
U_DRIVER
C1471
R1460
R1463
0.1
PCIC_MOSBIAS_1 1% .01uF
12K
C1472
FSWB2
0.1uF
MOSBIAS_1_SW
C1414
.01uF
C1415
E1403
.01uF
R1447 R1448
0 150K
C1491
C1482 C1468 L1406
FN0:NP 1000pF
1uF .01uF
250.974nH
FN0:NP
R1450 C1476
.01uF
13Vpp
820
C1461
C1416
Q1401
R1402 R1449 .01uF
R1458
R1459 75pF
390
390 390
390
FN0:NP
R1457
1.6Vpp
10
M1401
POS
HEATSINK
9T1
C1457
.01uF
R1410
130
R1481
C1456
D1402
2Vdc 100pF
L1420
51K
250.974nH
L1419
C1445
27uH
.01uF
C1447
L1421 L1422 L1423
217.576nH 139.750nH 124.327nH
470pF
C1450 C1452
D1401 C1454
C1448
189Vpp C1451
C1449 3pF 56pF 56pF
C1446
FN0:NP C1453
C1486
82pF 130pF
220pF 160pF
470pF
75pF
C1443
C1444
470pF
470pF
L1418
C1442
75pF
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
C1470
1uF
C1469
1uF
C1417
1000pF C1418
.01uF
L1424
L1408
120nH 56nH
FN0:NP
Low Band Range 1 (29.7–36 MHz) Power Amplifier Sheet 1 of 2
Section 7 : 4-9
RXIN_PA_1
RXIN
TSENSE
C1485
.01uF
J1401
186Vpp
C1455
R1411
10K
18pF
FL0830687O
6881091C63-F