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Motorola Gm Series Detailed 6864115b62 A Manual

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    							LB Range3 25-60W PCB 8485908z03 / Schematics4-41
    * Motorola Depot Servicing only
    Reference designators with an asterisk indicate 
    components which are not fieldreplaceable 
    because they need to be calibrated with 
    specialized factory equipment after installation. 
    Radios in which these par ts have been replaced in 
    the field will be off frequency at temperature 
    extremes.
    R1212 0662057A25 100R1213
    0662057A45
    680
    R1214 0662057A54 1.6K
    R1215
    0662057A21
    68
    R1216 0662057A18 51
    R1217
    0662057A25
    100
    R1218 0662057A17 47
    R1219
    0662057A17
    47
    R1220 0662057A17 47
    R1221
    0662057B47
    0
    R1306 0662057B47 0
    R1307
    0662057A19
    56
    R1308 0662057A19 56
    R1309
    0662057A41
    470
    R1311 0662057A73 10K
    R1312
    0662057A51
    1.2K
    R1313 0662057A51 1.2K
    R1314
    0662057A37
    330
    R1315 0662057A61 3.3K
    R1316
    0662057A45
    680
    R1317 0662057A09 22
    R1318
    0662057A41
    470
    R1319 0662057A01 10
    R1320
    0662057A41
    470
    R1325 0662057B47 0
    R1326
    0662057A19
    56
    R1327 0662057A19 56
    R1328
    0662057A41
    470
    R1330 0662057A73 10K
    R1331
    0662057A51
    1.2K
    R1332 0662057A51 1.2K
    R1333
    0662057A37
    330
    R1334 0662057A61 3.3K
    R1335
    0662057A47
    820
    R1336 0662057A09 22
    R1337
    0662057A22
    75
    R1338 0662057A27 120
    R1339
    0662057A22
    75
    R1340 0662057A49 1K
    R1341
    0662057A25
    100
    R1342 0662057A25 100
    R1343
    0662057C55
    150
    R1344 0662057A49 1K
    R1345
    0662057A25
    100
    R1346 0662057A25 100
    R1347
    0662057C55
    150
    R1376 0662057A65 4.7K
    R1402
    0611079A64
    390
    R1404 0680194M18 51
    R1405
    0680194M18
    51
    R1406 0662057A73 10K
    R1407
    0662057A73
    10K
    R1409 0682089V01 .01
    R1410
    0683962T52
    130
    R1411 0662057C99 10K
    R1413
    0680194M01
    10
    Circuit 
    RefMotorola Part 
    No.Description
    R1414 0680194M01 10R1416
    0680194M01
    10
    R1417 0680194M01 10
    R1418
    0680194M01
    10
    R1419 0680194M01 10
    R1420
    0680194M01
    10
    R1421 0680194M01 10
    R1422
    0680194M01
    10
    R1423 0680194M01 10
    R1424
    0662057D10
    27K
    R1425 0662057D10 27K
    R1440
    0662057A25
    100
    R1442 0662057A25 100
    R1443
    0662057A49
    1K
    R1444 0662057A33 220
    R1445
    0662057A68
    6.2K
    R1447 0662057B47 0
    R1449
    0611079A64
    390
    R1450 0683962T71 820
    R1451
    0662057K31
    180
    R1453 0662057K31 180
    R1454
    0662057K31
    180
    R1455 0662057K31 180
    R1457
    0662057K01
    10
    R1458 0611079A64 390
    R1459
    0611079A64
    390
    R1460 0680106R01 0.1
    R1463
    0662057A75
    12K
    R1464 0662057A61 3.3K
    R1465
    0662057A61
    3.3K
    R1469 0662057C01 0
    R1472
    0662057A73
    10K
    R1473 0680194M01 10
    R1474
    0680194M01
    10
    R1475 0680194M01 10
    R1476
    0680194M01
    10
    R1477 0662057A61 3.3K
    R1478
    0662057A73
    10K
    R1479 0662057A61 3.3K
    R1480
    0662057D10
    27K
    R1482 0662057B47 0
    R1483
    0662057A34
    240
    R1484 0662057A49 1K
    R1501
    0662057A45
    680
    R1502 0662057C67 470
    R1503
    0662057A61
    3.3K
    R1504 0662057A73 10K
    R1505
    0662057A69
    6.8K
    R1506 0662057A87 39K
    R1507
    0662057A49
    1K
    R1508 0662057R19 100
    R1509
    0662057P95
    100K
    R1511 0662057P95 100K
    R1513
    0662057C76
    1.1K
    R1514 0662057A97 100K
    R1515
    0662057A49
    1K
    Circuit 
    RefMotorola Part 
    No.Description
    R1516 0662057C71 680R1517
    0662057C71
    680
    R1518 0662057A61 3.3K
    R1519
    0662057C71
    680
    R1522 0662057A73 10K
    R1524
    0662057C71
    680
    R1526 0662057A97 100K
    R1527
    0662057A97
    100K
    R1528 0662057A80 20K
    R1532
    0662057A95
    82K
    R1533 0662057A73 10K
    R1535
    0662057C01
    0
    R1537 0662057A90 51K
    R1541
    0662057A68
    6.2K
    R1542 0662057A49 1K
    R1543
    0662057A49
    1K
    R1544 0662057A90 51K
    R1545
    0662057A65
    4.7K
    R1601 0662057A73 10K
    R1602
    0662057A65
    4.7K
    R1604 0662057A49 1K
    R1605
    0662057B10
    330K
    R1606 0662057B02 150K
    R1607
    0662057B19
    750K
    R1608 0662057A57 2.2K
    R1609
    0662057A73
    10K
    R1610 0662057A82 24K
    R1611
    0662057A49
    1K
    R1612 0662057A25 100
    R1613
    0662057A59
    2.7K
    R1614 0662057A49 1K
    R1615
    0662057A49
    1K
    R1616 0662057A33 220
    R1617
    0662057A57
    2.2K
    R1620 0662057A51 1.2K
    R1621
    0662057A68
    6.2K
    R1622 0662057A49 1K
    R1626
    0662057A18
    51
    R1627 0662057A73 10K
    R1628
    0662057A55
    1.8K
    R1629 0662057A67 5.6K
    R1630
    0662057A53
    1.5K
    R1631 0662057A18 51
    R1632
    0662057A82
    24K
    R1635 0662057B47 0
    R1636
    0662057A42
    510
    R1637 0662057A59 2.7K
    R1638
    0662057A55
    1.8K
    SH1302 2680473U01 VCO SHIELD
    U1001
    4802245J50
    UMC5N
    U1051 5108278X01 MIXER
    U1101
    5113805A86
    MC74HC4066
    U1102 5113805A86 MC74HC4066
    U1103
    5186144B01
    SA616
    U1201 5185963A27 FRACN SYNTHESIZER
    U1250
    5185963A33
    LP2951
    Circuit 
    RefMotorola Part 
    No.Description
    U1377 4802245J50 UMC5NU1378
    4802245J50
    UMC5N
    U1401 5185130C65 LDMOS PREDRIVER IC
    U1402
    5113818A03
    MC33072
    U1501 5185963A15 LM50
    U1502
    5109731C21
    LM6142BIM
    U1503 5185765B28 POWER CONTROL IC
    U1601
    5180929W01
    MC1350
    Y1101 4880908W08 CRYSTAL, 10.245 MHZ
    Y1102
    9186145B02
    DISCRIMINATOR, 455 KHZ
    Y1201 4880114R04 CRYSTAL, 16.8 MHZ
    Y1202
    NOTPLACED
    Circuit 
    RefMotorola Part 
    No.Description 
    						
    							4-42LB Range3 25-60W PCB 8485908z03 / Schematics 
    						
    							 Professional Radio
    GM Series
    UHF (403-470MHz)
    Se rvice In fo rmation
    Issue:  February  2001 
    						
    							ii
    Computer Software Copyrights
    The Motorola products described in this manual may include copyrighted Motorola computer programs stored 
    in semiconductor memories or other media. Laws in the United States and other countries preserve for 
    Motorola certain exclusive rights for copyrighted computer programs, including the exclusive right to copy or 
    reproduce in any form, the copyrighted computer program. Accordingly, any copyrighted Motorola computer 
    programs contained in the Motorola products described in this manual may not be copied or reproduced in 
    any manner without the express written permission of Motorola. Furthermore, the purchase of Motorola 
    products shall not be deemed to grant, either directly or by implication, estoppel or otherwise, any license 
    under the copyrights, patents or patent applications of Motorola, except for the normal non-exclusive royalty-
    free license to use that arises by operation of law in the sale of a product. 
    						
    							iii
    Table of Contents
    Chapter 1 MODEL CHART AND TECHNICAL SPECIFICATIONS
    1.0 GM140/GM160 Model Chart ........................................................................\
    ........ 1-1
    2.0 GM340/GM360/GM380 Model Chart ................................................................... 1-1
    3.0 GM640/GM660/GM1280 Model Chart ................................................................. 1-2
    4.0 Technical Specifications ........................................................................\
    .............. 1-3
    Chapter 2 THEORY OF OPERATION
    1.0 Introduction ........................................................................\
    .................................. 2-1
    2.0 UHF (403-470MHz)  Receiver ........................................................................\
    ..... 2-12.1 Receiver Front-End ........................................................................\
    ................ 2-1
    2.2 Front-End Band-Pass Filters & Pre-Amplifier ................................................. 2-2
    2.3 First Mixer and High Intermediate Frequency (IF) .......................................... 2-2
    2.4 Low Intermediate Frequency (IF) and Receiver Back End ............................. 2-2
    3.0 UHF (403-470MHz) 
     Transmitter Power Amplifier (PA) 25 W..................... 2-3
    3.1 First Power Controlled Stage ........................................................................\
    .. 2-3
    3.2 Power Controlled Driver Stage ....................................................................... 2-4
    3.3 Final Stage ........................................................................\
    ............................. 2-4
    3.4 Directional Couple r........................................................................\
    ................. 2-4
    3.5 Antenna Switch........................................................................\
    ....................... 2-5
    3.6 Harmonic Filter ........................................................................\
    ....................... 2-5
    3.7 Power Control ........................................................................\
    ......................... 2-5
    4.0 UHF (403-470MHz)  Frequency Synthesis .......................................................... 2-6 4.1 Reference Oscillator ........................................................................\
    ............... 2-6
    4.2 Fractional-N Synthesizer ........................................................................\
    ........ 2-6
    4.3 Voltage Controlled Oscillator (VCO) ............................................................... 2-7
    4.4 Synthesizer Operation ........................................................................\
    ............ 2-8
    5.0  UHF (403-470MHz)   
    Transmitter  Pow er Amplifier ( PA) 4 0 W.................... .2-9
    5.1 Power Controlled Stage ........................................................................\
    .......... 2-9
    5.2 Pre-Driver Stage ........................................................................\
    ..................... 2-9
    5.3 Driver Stage........................................................................\
    .......................... 2-10
    5.4 Final Stage ........................................................................\
    ........................... 2-10
    5.5 Directional Couple r........................................................................\
    ............... 2-10
    5.6 Antenna Switch........................................................................\
    ..................... 2-10
    5.7 Harmonic Filter ........................................................................\
    ..................... 2-10
    5.8 Power Control ........................................................................\
    ....................... 2-11 
    						
    							iv
    Chapter 3 TROUBLESHOOTING CHARTS
    1.0 Troubleshooting Flow Chart for Receiver (Sheet 1 of 2) ..................................... 3-1
    1.1 Troubleshooting Flow Chart for Receiver (Sheet 2 of 2) ..................................... 3-2
    2.0 Troubleshooting Flow Chart for 25W Transmitter (Sheet 1 of 3) ......................... 3-3
    2.1 Troubleshooting Flow Chart for 25W Transmitter (Sheet 2 of 3) ......................... 3-4
    2.2 Troubleshooting Flow Chart for 25W Transmitter (Sheet 3 of 3) ......................... 3-5
    3.0 Troubleshooting Flow Chart for 40W Transmitter  ............................................... 3-6
    4.0 Troubleshooting Flow Chart for Synthesizer........................................................ 3-7
    5.0 Troubleshooting Flow Chart for VCO................................................................... 3-8
    Chapter 4  UHF PCB/SCHEMATICS/PARTS LISTS
    1.0 Allocation of Schematics and Circuit Boards ....................................................... 4-1
    1.1 Controller Circuits ........................................................................\
    ........................ 4-1
    2.0 UHF 1-25W PCB 8485670z02 / Schematics ....................................................... 4-3
    2.1 UHF 1-25W PCB 8485670z02 Parts List........................................................... 4-10
    3.0 UHF 25-40W PCB 8480643z06 / Schematics ................................................... 4-13
    3.1 UHF 25-40W PCB 8480643z06 Parts List......................................................... 4-20
    4.0 UHF 1-25W PCB 8485670z0 3 / Schematic s.................................................... .4-23
    4.1  UHF 1-25W PCB 8485670z0 3 Parts Lis t.......................................................... .4-30 
    						
    							Chapter 1
    MODEL CHART AND TECHNICAL SPECIFICATIONS
    1.0 GM140/GM160 Model Chart
    GM Series UHF 403-470 MHz
    Model Description
    MDM25RKC9AA1_EGM140, 403-470 MHz, 25-40W, 4 Ch
    MDM25RKF9AA5_E GM160, 403-470 MHz, 25-40W, 128 Ch
    Item Description
    XGCN6112_Control Head GM140
    X GCN6114_ Control Head GM160
    XIMUE6024_SField Replaceable Unit (Main Board) GM140
    X IMUE6024_S Field Replaceable Unit (Main Board) GM160
    XXENBN4056_Packaging, Waris Mobile Radio
    X X GLN7324_ Low Profile Mounting Trunnion
    XXHKN9402_12V Power Cable, 25-45W
    X X MDRMN4025_ Enhanced Compact Microphone
    X6864110B86User Guide, GM140
    X 6864110B87 User Guide, GM160
    X = Indicates one of each is required 
    						
    							1-2 MODEL CHART AND TECHNICAL SPECIFICATIONS
    2.0 GM340/GM360/GM380 Model Chart
    GM Series UHF 403-470 MHz
    Model Description
    MDM25RHC9AN1_EGM340, 403-470 MHz, 1-25W, 6 Ch
    MDM25RHF9AN5_E GM360, 403-470 MHz, 1-25W, 255 Ch
    MDM25RHC9AN8_EGM380, 403-470 MHz, 1-25W, 255 Ch
    MDM 25 RH A9A N0_E   Datab ox, 4 03-4 70  MHz,  1-2 5W , 16  Ch
    Item Description
    XGCN6112_Control Head GM340
    X GCN6120_ Control Head GM360
    XGCN6121_Control Head GM380
    X GCN6116_ Databox Radio Blank Head
    XIMUE6015_SField Replaceable Unit (Main Board) GM340
    X IMUE6015_S Field Replaceable Unit (Main Board) GM360
    XIMUE6038_SField Replaceable Unit (Main Board) GM380
    X IMUE6015_A S/T 403-470MHz 1-25 SEL5
    XXXXENBN4056_Packaging, Waris Mobile
    XXXXGLN7324_ Low Profile Mounting Trunnion
    XXXXHKN4137_12V Power Cable 1-25W
    X X X MDRMN4025_ Enhanced Compact Microphone
    X6864110B80User Guide GM340
    X 6864110B81 User Guide, GM360
    X6864110B82User Guide, GM380
    X = Indicates one of each is required 
    						
    							GM640/GM660/GM1280 Model Chart1-3
    3.0 GM640/GM660/GM1280 Model Chart
    GM Series UHF 403-470 MHz
    Model Description
    MDM25RHC9CK1_EGM640, 403-470 MHz, 1-25W, 6 Ch
    MDM25RHF9CK5_E GM660, 403-470 MHz, 1-25W, 255 Ch
    MDM25RHN9CK8_EGM1280, 403-470 MHz, 1-25W, 255 Ch
    MDM 25 RH A9C K7_E   Dat ab ox,  40 3-4 70  MHz,  1-2 5W ,  16  C h
    Item Description
    XGCN6112_Control Head GM640
    X GCN6120_ Control Head GM660
    XGCN6121_Control Head GM1280
    X GCN6116_ Databox Radio Blank Head
    XI M UE6009 _AS/T 403-470MHz 1-25 SEL5
    X IMUE6009_S Field Replaceable Unit (Main Board) GM640
    XIMUE6009_SField Replaceable Unit (Main Board) GM660
    X IMUE6009_S Field Replaceable Unit (Main Board) GM1280
    XXXXENBN4056_Packaging, Waris Mobile Radio
    XXXXGLN7324_ Low Profile Mounting Trunnion
    XXXXHKN4137_12V Power Cable, 1-25W
    X X X MDRMN4025_ Enhanced Compact Microphone
    X6864110B83_User Guide, GM640
    X 6864110B84_ User Guide, GM660
    X6864110B85_User Guide, GM1280
    X = Indicates one of each is required 
    						
    							1-4 MODEL CHART AND TECHNICAL SPECIFICATIONS
    4.0 Technical Specifications
    Data is specified for +25°C unless otherwise stated.
    General Specifications
    Channel Capacity
    GM140
    GM160
    GM340
    GM360
    GM380
    GM640
    GM660
    GM1280
    Databox
    4
    128
    6
    255
    255
    6 
    255
    255
    16
    Power Supply 13.2Vdc (10.8 - 15.6Vdc)
    Dimensions:  H x W x D (mm)  Depth excluding knobsGM140/340/640
    56mm x 176mm x 177mm (1 - 25W)
    56mm x 176mm x 189mm (25 - 40W)
    (add 8mm for Volume Knob)
    Dimensions:  H x W x D (mm)  Depth excluding knobsGM160/360/660
    59mm x 179mm x 186mm (1 - 25W)
    59mm x 179mm x 198mm (25 - 40W)
    (add 9mm for Volume Knob)
    Dimensions:  H x W x D (mm)  Depth excluding knobsGM380/1280
    72mm x 185mm x 188mm
    (add 8mm for Volume Knob)
    Dimensions:  H x W x D (mm)  Depth excluding knobsDatabox
    44mm x 168mm x 161mm
    Weight GM140/340/640 1400gr
    Weight GM160/360/660 1400gr
    Weight GM380/1280 1500gr
    Weight Databox 1220gr
    Sealing:Withstands rain testing per 
    MIL STD 810 C/D /E and IP54
    Shock and Vibration:Protection provided via impact
    resistant housing exceeding MIL STD 
    810-C/D /E and TIA/EIA 603
    Dust and Humidity:Protection provided via environment 
    resistant housing exceeding MIL STD 
    810 C/D /E and TIA/EIA 603 
    						
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