Motorola Gm Series Detailed 6864115b62 A Manual
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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 ........................................................................\...](http://img.usermanuals.tech/thumb/52/48774/w64_gm-series-detailed-service-manual-6864115b62-a-94.png "Page 95
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 ........................................................................\...")
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
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