Motorola 6864115B62-C Detailed Service Manual page 435

LB Range3, 25-60W PCB 8486908Z02 / Schematics
MOSBIAS_2_PA_1
R1465
MOSBIAS_2
3.3K
R1415
18 Vpp
R1412
MOSBIAS_3_PA_1
R1464
MOSBIAS_3
3.3K
R1469
0
9V3 U_PREDRIVER
R1470
2.4K
R1468
FN0:NP
2.2K
FN0:NP
R1467 U1402-1
39K
Vint
3
FN0:NP MC33072
2
R1482
0
R1466
39K
FN0:NP
VCNTRL
C1473
0.1uF
PASUPVLTG
MOSBIAS_2_SW
1.8V-2.1V
TP1402
R1407
DEVICE NEAR INSIDE OF RADIO
10K
C1425
C1421 L1413
R1424 C1423
.01uF
88.470nH
27K
.01uF
FN0:NP
1uF
R1405
51
Q1403
D
10 R1419 R1423
GND1
C1419
FN0:NP 10 10 GND2
G
C1427 C1429
R1413 R1417 R1421
.01uF
240pF 240pF
10 10 10
10 R1416 R1420 Q1402
C1428 C1430
C1420
10 10
FN0:NP
240pF 240pF
G
R1414 R1418 R1422 GND2
.01uF
GND1
10 10 10
R1404
51
MOSBIAS_3_SW
L1414
1.8V-2.1V
TP1403 88.470nH
DEVICE NEAR OUTSIDE OF RADIO
R1406
10K
C1426 C1422
C1424
R1425
.01uF
.01uF
27K 1uF
FN0:NP
C1484
R1478 2200pF
Q1404
FN0:NP
10K
PASUPVLTG
R1477
6 8
PASUPVLTG
7 R1484
C1486
R1472 10K 3.3K MC33072
1K
5 0.1uF
4 U1402-2
R1475
10 R1479
R1473 R1474
10 10 3.3K
R1476
10
C1410
R1483 0.1uF
U_DRIVER
240
FN0:NP E1401
4
R1471
R1443
C1460
C1404
1K
1
.01uF
0 L1402
8
C1402 4.7uH
0.1uF
L1401
.01uF C1403
6.8nH
6.2pF
FN0:NP
FN0:NP
L1403 R1444
TXINJ_PA_1
16 RFIN 6 4.7uH 220
RFOUT1
1
7
VCNTRL RFOUT2 L1404
TXINJ 2.5 Vpp
C1401 14 2
VD1 VG1
.01uF
11 3 10 Vpp 180nH
G2 VG2
C1467
U1401
C1409
R1440 68pF
8 NC1 30C65 68pF
9 FN0:NP
100 NC2
10
NC3 C1406
R1441
C1474 15 NC4
C1405 330pF
10K R1445
.01uF
FN0:NP
6.2K .01uF
FN0:NP C1408
330pF
C1407
R1446
.01uF
5.6K
FN0:NP
FN0:NP
C1463 C1464 C1465 C1466
R1451 R1453 R1454 R1455
180
1uF .01uF 180 1uF .01uF 180 180
PASUPVLTG_PA_1
PASUPVLTG
C1435 C1436
1uF .01uF C1458
10uF
R1409
.01
C1431 C1433
1uF C1459
.01uF
10uF
FSWB
25 Vpp
C1443
130pF
C1477 C1481
C1437 C1439 C1479
L1425 L1415 82pF
300pF 470pF 470pF 220pF
18nH 18nH
L1417 L1418
18nH 66.389nH
90 Vpp
L1416
18nH
C1478 L1426
C1480 C1441
C1438 C1440
18nH
82pF
300pF 470pF 470pF 220pF
25 Vpp
C1432
C1434 C1462
1uF .01uF 10uF
U_DRIVER
3.7V-3.9V
TP1401
R1460
C1471
R1480 R1463 0.1
.01uF
PCIC_MOSBIAS_1 1%
27K
12K
FSWB2
U_PREDRIVER C1472
MOSBIAS_1_SW
0.1uF
C1475 C1414
1uF C1415
E1403 0.1uF
.01uF
R1447
R1448
0 150K
C1482 C1468 C1485
FN0:NP
1uF .01uF .01uF L1406
250.974nH
R1450
820 C1476
0.1uF
20 Vpp
C1461
Q1401 C1416
C1412 .01uF
R1449 R1458 R1459
R1402 30pF
270pF
390 390 390
390
FN0:NP
C1413
R1457
5 Vpp
10
.01uF
M1401
L1405
POS
HEATSINK
120nH
FN0:NP
WARIS Mobile Low Band
Range 3 (42-50 MHz)
Power Amplifier Sheet 1 of 2
ILLUSTRATOR DATE ENGINEER
JP 3/28/01
EDITOR DATE
LR
9T1
C1457
RXIN_PA_1
.01uF
R1410
130
C1456
D1402
L1420 51pF
172.891nH
L1419
C1445
.01uF 27uH
FN0:NP
C1447
L1421 L1422 L1423
137.876nH 81.930nH
115.581nH
470pF
D1401 C1450 C1452 C1454
190 Vpp
C1448
3pF 24pF 33pF C1455
C1446 C1451
C1449
C1453 16pF
24pF 180pF
110pF 100pF
470pF
C1444
130pF
Peak-to-Peak Voltages (Vpp) are typical values as
C1442
could be measured with an oscilloscope under
120pF
the following conditions:
1.) Battery Voltage = 13.6 Volts
2.) Test Channel 11, i.e. High Power @ 46.125 MHz
C1470
1uF
C1469
1uF
C1417
430pF
C1418 L1424
L1408
510pF 36.54nH
120nH
FN0:NP
FN0:NP
LB3 (42.0-50.0 MHz) Power Amplifier - Sheet 1 of 2
4-63
MEDIA & COMMUNICATIONS DEPT.
DWG. NO.
FL0830695
DATE PROGRAM DISK CHECK
ONE
Illustrator
O.K. AS IS ( )
CHECKER DATE CORRECTED
O.K. AS MARKED ( )
AS
MARKED
ISS. REVISION RLSE. RLSE.
O
RXIN
180 Vpp
R1411
10K
J1401
FL0830695O