LB Range1, 25-60W PCB 8486206B06 / Schematics
4-7
1.8V-2.2V
1.8-2.2V
1.75Vpp
1.8V-2.2V
12Vpp
J1401
L1423
430pF
124.327nH
130pF
C1481
C1422
FN0:NOTPLACED
C1449
4.7uH
.01uF
16
RFIN
6
RFOUT1
7
RFOUT2
1
VCNTRL
14
VD1
2
VG1
3
VG2
L1402
4
GND1
5
GND2
12
GND3
13
GND4
8
NC1
9
NC2
10
NC3
15
NC4
U1401
30C65
17
EP
11
G2
C1413
.01uF
L1424
56nH
FN0:NP
1uF
C1425
10
R1421
.01uF
C1405
10uF
C1458
75pF
C1486
56pF
180
R1454
1uF
C1452
C1471
C1469
.01uF
C1468
.01uF
0
C1433
1uF
27Vpp
78Vpp
2Vdc
143Vpp
189Vpp
186Vpp
27Vpp
R1482
0.1uF
C1402
C1529
.01uF
C1423
.01uF
100pF
C1480
FN0:NP
R1441
10K
FN0:NP
C1430
470pF
217.576nH
L1421
C1491
1000pF
FN0:NP
FN0:NP
FN0:NP
R1472
10K
R1451
180
0.1uF
C1472
R1448
150K
R1478
10K
R1469
0
L1403
TXINJ_PA_1
4.7uH
51
100pF
C1456
27uH
R1404
6.2K
L1419
.01uF
R1445
TXINJ
C1420
220
R1444
R1479
3.3K
R1417
10
FN0:NP
C1441
200pF
C1421
DEVICE NEAR INSIDE OF RADIO
DEVICE NEAR OUTSIDE OF RADIO
.01uF
470pF
C1448
6
5
7
8
4
C1442
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
75pF
MC33072
U1402
R1440
C1427
470pF
100
C1408
TP1402
56pF
C1454
FN0:NP
FN0:NP
330pF
C1482
220pF
1uF
C1451
250.974nH
L1420
D1401
10
R1457
FN0:NP
6.8nH
L1401
L1422
139.750nH
R1414
10
10
R1412
.01uF
C1445
C1439
470pF
FN0:NP
0.1uF
C1460
MOSBIAS_3
Q1404
R1442
FN0:NP
FN0:NP
100
0
R1415
10
FN0:NP
R1447
180
R1455
L1408
120nH
PASUPVLTG_PA_1
E1401
.01uF
MOSBIAS_2_PA_1
C1459
C1485
R1413
10uF
10
10
10
R1474
R1475
88.470nH
L1414
C1446
82pF
.01
C1443
470pF
C1444
R1409
.01uF
470pF
C1475
PASUPVLTG
C1401
R1477
1uF
1uF
3.3K
C1467
C1426
E1403
82pF
C1431
.01uF
G
GND1
GND2
S1
S2
S3
S4
Q1402
D
88.470nH
C1462
10uF
L1413
470pF
C1477
820
R1450
13Vpp
1.6Vpp
R1463
.01uF
12K
41nH
L1415
C1466
D1402
39K
FN0:NP
RXIN_PA_1
R1467
L1416
41nH
390
R1458
180nH
L1404
10K
R1411
1K
R1443
470pF
C1429
C1416
75pF
470pF
C1447
R1483
240
.01uF
C1434
FN0:NP
R1446
5.6K
MOSBIAS_3_PA_1
130
R1410
.01uF
Q1401
C1453
C1404
160pF
C1455
3.3K
R1464
18pF
C1470
C1476
.01uF
1%
0.1
1uF
10
R1460
R1465
R1416
3.3K
TP1403
TSENSE
C1407
.01uF
470pF
C1428
U1402
MC33072
2
3
1
8
4
120nH
FN0:NP
10
R1420
L1405
R1423
10
180
R1453
.01uF
390
R1449
C1419
1K
.01uF
R1484
M1401
HEATSINK
POS
C1414
R1418
51K
10
MOSBIAS_2
R1481
FN0:NP
470pF
C1440
R1470
2.4K
L1426
41nH
L1425
41nH
.01uF
C1461
10K
R1406
180pF
C1479
184.518nH
L1418
RXIN
0.1uF
C1410
C1418
.01uF
C1424
.01uF
72.462nH
L1417
.01uF
C1474
C1473
0.1uF
330pF
C1406
470pF
C1437
10
R1476
R1473
10
10
R1419
51
R1405
R1459
390
R1466
39K
FN0:NP
C1438
470pF
FN0:NP
1uF
C1432
C1450
3pF
.01uF
C1457
C1478
470pF
FN0:NP
C1403
6.2pF
FN0:NP
1uF
C1435
FN0:NP
R1471
0
R1468
2.2K
2200pF
C1484
R1422
10
1000pF
C1417
.01uF
C1464
R1480
27K
TP1401
27K
R1425
10K
R1407
.01uF
C1436
R1402
390
C1465
1uF
1uF
C1463
.01uF
R1424
C1415
250.974nH
27K
GND2
S1
S2
S3
S4
L1406
Q1403
D
G
GND1
9V3
PASUPVLTG
VCNTRL
FSWB2
Vint
U_PREDRIVER
U_DRIVER
PASUPVLTG
U_PREDRIVER
MOSBIAS_2_SW
MOSBIAS_3_SW
MOSBIAS_1_SW
PASUPVLTG
U_DRIVER
FSWB
PCIC_MOSBIAS_1
9T1
FL0830687-O
LB1 (29.7-36.0 MHz) Power Amplifier Sheet 1 of 2
Summary of Contents for 6864115B62-C
Page 1: ...Professional Radio GM Series Detailed Service Manual 6864115B62 C ...
Page 2: ...ii ...
Page 4: ...iv ...
Page 5: ...Professional Radio GM Series Service Maintainability Issue July 2007 ...
Page 8: ...ii ...
Page 22: ...2 10 MAINTENANCE ...
Page 25: ...Professional Radio GM Series Controlhead Service Information Issue July 2007 ...
Page 77: ...Professional Radio GM Series Controller Service Information Issue May 2007 ...
Page 100: ...2 2 TROUBLESHOOTING CHARTS ...
Page 104: ...3 4 Controller schematics parts list ...
Page 154: ...3 52 Controller T12 Schematic Diagrams ...
Page 155: ...Professional Radio GM Series VHF 136 174MHz Service Information Issue May 2007 ...
Page 164: ...1 6 MODEL CHART AND TECHNICAL SPECIFICATIONS ...
Page 176: ...2 12 THEORY OF OPERATION ...
Page 186: ...3 10 TROUBLESHOOTING CHARTS ...
Page 190: ...4 4 VHF PCB SCHEMATICS PARTS LISTS ...
Page 252: ...4 66 VHF 1 25W PCB 8471235L02 Schematics VHF 136 174 MHz IF ...
Page 256: ...4 70 VHF 1 25W PCB 8471235L02 Schematics ...
Page 257: ...Professional Radio GM Series UHF 403 470MHz Service Information Issue May 2007 ...
Page 266: ...1 6 MODEL CHART AND TECHNICAL SPECIFICATIONS ...
Page 366: ...2 12 THEORY OF OPERATION ...
Page 372: ...3 6 Low Band TROUBLESHOOTING CHARTS ...