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Motorola Cp150 Cp200 6880309n62 C Manual

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    							CP150
™
/CP200
™
Commercial SeriesTwo-Way Radio Detailed Service Manual
MOTOROLA, The Stylized M logo, and Radius are trademarks of Motorola, Inc.
All other product or service names are the property of their respective owners.
© 2005 Motorola, Inc. All rights reserved. Printed in U.S.A.*6880309N62*6880309N62-C
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    							Product Safety and RF Exposure Compliance
AT T E N T I O N !
This radio is restricted to occupational use only to satisfy FCC RF energy exposure requirements. 
Before using this product, read the RF energy awareness information and operating instructions in the 
Product Safety and RF Exposure booklet enclosed with your radio (Motorola Publication part number 
68P81095C98) to ensure compliance with RF energy exposure limits.
For a list of Motorola-approved antennas, batteries, and other accessories, visit the following web site which 
lists approved accessories: http://www.motorola.com/cgiss/index.shtml.
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, but not limited to, 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, reproduced, modified, reverse-engineered, or distributed 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 license to use that arises by operation of law in  
the sale of a product.
Document Copyrights
No duplication or distribution of this document or any portion thereof shall take place without the express  
written permission of Motorola. No part of this manual may be reproduced, distributed, or transmitted in any  
form or by any means, electronic or mechanical, for any purpose without the express written permission of  
Motorola.
Disclaimer
The information in this document is carefully examined, and is believed to be entirely reliable. However, no  
responsibility is assumed for inaccuracies. Furthermore, Motorola reserves the right to make changes to any  
products herein to improve readability, function, or design. Motorola does not assume any liability arising out 
of the applications or use of any product or circuit described herein; nor does it cover any license under its  
patent rights nor the rights of others.Before using this product, read the operating instructions for safe usage contained in the 
Product Safety and RF Exposure booklet enclosed with your radio.
!
C a u t i o n
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    							i
Table of Contents
Foreword
Product Safety and RF Exposure Compliance .......................................................................... inside cover
Computer Software Copyrights ................................................................................................. inside cover
Document Copyrights ................................................................................................................ inside cover
Disclaimer .................................................................................................................................. inside cover
List of Figures ........................................................................................................................................... viii
List of Tables .............................................................................................................................................. xi
Related Publications ................................................................................................................................... xi
Chapter 1 Test Equipment, Service Aids, and  Service Tools .......... 1-1
1.1 Test Equipment.............................................................................................................................. 1-1
1.2 Service Aids ................................................................................................................................... 1-2
Chapter 2 DC Power Distribution ........................................................ 2-1
2.1 DC Regulation and Distribution ..................................................................................................... 2-1
Chapter 3 Controller Theory of Operation.......................................... 3-1
3.1 Controller ....................................................................................................................................... 3-1
3.1.1 Microprocessor Circuitry ...................................................................................................3-1
3.1.1.1 Memory Usage ........................................................................................................ 3-2
3.1.1.2 Control and Indicator Interface ................................................................................ 3-2
3.1.1.3 Serial Bus Control of Circuit Blocks ......................................................................... 3-2
3.1.1.4 Interface to RSS Programming ................................................................................ 3-3
3.1.1.5 Storage of Customer-Specific Information ............................................................... 3-3
3.1.1.6 Sensing of Externally-Connected Accessories ........................................................ 3-3
3.1.1.7 Microprocessor Power-Up, Power-Down and Reset Routine .................................. 3-3
3.1.1.8 Boot Mode Control ................................................................................................... 3-4
3.1.1.9 Microprocessor 7.3975 MHz Clock .......................................................................... 3-4
3.1.1.10 Battery Gauge..........................................................................................................3-4
3.1.2 Audio Circuitry .................................................................................................................. 3-4
3.1.2.1 Transmit and Receive Low-Level Audio Circuitry .................................................... 3-4
3.1.2.2 Audio Power Amplifier ............................................................................................. 3-5
3.1.2.3 Internal Microphone Audio Voice Path .................................................................... 3-5
3.1.2.4 PTT Circuits .............................................................................................................3-6
3.1.2.5 VOX Operation ........................................................................................................ 3-6
3.1.2.6 Battery Charging Through Microphone Jack ........................................................... 3-6
3.1.2.7 Programming and Flashing Through Microphone Jack ........................................... 3-6
Chapter 4 136-162 MHz VHF Theory Of Operation............................ 4-1
4.1 Introduction .................................................................................................................................... 4-1
4.2 VHF Receiver ................................................................................................................................ 4-1
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    							iiTable of Contents
June, 20056880309N62-C
4.2.1 Receiver Front-End ........................................................................................................... 4-1
4.2.2 Receiver Back-End ........................................................................................................... 4-2
4.3 VHF Transmitter............................................................................................................................. 4-3
4.3.1 Transmit Power Amplifier ..................................................................................................4-3
4.3.2 Antenna Switch ................................................................................................................. 4-3
4.3.3 Harmonic Filter.................................................................................................................. 4-3
4.3.4 Antenna Matching Network ............................................................................................... 4-4
4.3.5 Power Control ................................................................................................................... 4-4
4.4 VHF Frequency Generation Circuitry ............................................................................................. 4-4
4.4.1 Fractional-N Synthesizer...................................................................................................4-5
4.4.2 Voltage Controlled Oscillator (VCO) ................................................................................. 4-6
Chapter 5 146-174 MHz VHF Theory Of Operation ............................ 5-1
5.1 Introduction .................................................................................................................................... 5-1
5.2 VHF Receiver................................................................................................................................. 5-1
5.2.1 Receiver Front-End ........................................................................................................... 5-1
5.2.2 Receiver Back-End ........................................................................................................... 5-2
5.3 VHF Transmitter............................................................................................................................. 5-3
5.3.1 Transmit Power Amplifier ..................................................................................................5-3
5.3.2 Antenna Switch ................................................................................................................. 5-3
5.3.3 Harmonic Filter.................................................................................................................. 5-3
5.3.4 Antenna Matching Network ............................................................................................... 5-4
5.3.5 Power Control ................................................................................................................... 5-4
5.4 VHF Frequency Generation Circuitry ............................................................................................. 5-4
5.4.1 Fractional-N Synthesizer...................................................................................................5-5
5.4.2 Voltage Controlled Oscillator (VCO) ................................................................................. 5-6
Chapter 6 VHF Troubleshooting Tables ............................................. 6-1
6.1 Troubleshooting Table for Receiver ............................................................................................... 6-1
6.2 Troubleshooting Table for Synthesizer .......................................................................................... 6-3
6.3 Troubleshooting Table for Transmitter ........................................................................................... 6-4
6.4 Troubleshooting Table for Board and IC Signals ........................................................................... 6-7
Chapter 7 VHF Schematic Diagrams, Overlays, and Parts Lists...... 7-1
7.1 Introduction .................................................................................................................................... 7-1
7.1.1 Notes For All Schematics and Circuit Boards................................................................... 7-1
7.1.2 Six Layer Circuit Board ..................................................................................................... 7-3
7.2 Speaker and Microphone Schematic .............................................................................................7-3
7.2.1 Speaker and Microphone Parts List .................................................................................. 7-3
Chapter 7 VHF (136-162 MHz) Schematic Diagrams, Overlays, and
Parts Lists  (8486769Z02-A) .............................................. 7-5
Figure 7-3. VHF (136-162 MHz) Radio Circuit Block Interconnect Diagram (8486769Z02-A) ........... 7-5
Figure 7-4. VHF (136-162 MHz) Receiver Front End Schematic Diagram (8486769Z02-A) .............. 7-6
Figure 7-5. VHF (136-162 MHz) Receiver Back End Schematic Diagram (8486769Z02-A) .............. 7-7
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    							Table of Contentsiii
6880309N62-CJune, 2005
Figure 7-6. VHF (136-162 MHz) Synthesizer Schematic Diagram (8486769Z02-A) .......................... 7-8
Figure 7-7. VHF (136-162 MHz) Voltage Controlled Oscillator Schematic 
Diagram (8486769Z02-A)................................................................................................. 7-9
Figure 7-8. VHF (136-162 MHz) Transmitter and Power Control Schematic 
Diagram (8486769Z02-A)............................................................................................... 7-10
Figure 7-9. VHF (136-162 MHz) Controller Interconnect Schematic Diagram (8486769Z02-A) ...... 7-11
Figure 7-10. VHF (136-162 MHz) Microprocessor  Circuitry Schematic Diagram (8486769Z02-A) ... 7-12
Figure 7-11. VHF (136-162 MHz) Audio Circuitry Schematic Diagram (8486769Z02-A) ................... 7-13
Figure 7-12.  VHF (136-162 MHz) DC Regulation Schematic Diagram (8486769Z02-A) .................. 7-14
Figure 7-13. VHF (136-162 MHz) Board Top Side View (8486769Z02-A) ......................................... 7-15
Figure 7-14. VHF (136-162 MHz) Board Bottom Side View (8486769Z02-A) .................................... 7-16
VHF (136-162 MHz) Radio Parts List (8486769Z02-A) ......................................................................... 7-17
Chapter 7 VHF 136-162 MHz Schematic Diagrams, Overlays, and 
Parts Lists (8486769Z04-C) .............................................. 7-21
Figure 7-15. VHF (136-162 MHz) Radio Circuit Block Interconnect Diagram (8486769Z04-C) ......... 7-21
Figure 7-16. VHF (136-162 MHz) Receiver Front End Schematic Diagram (8486769Z04-C) ........... 7-22
Figure 7-17. VHF (136-162 MHz) Receiver Back End Schematic Diagram (8486769Z04-C) ............ 7-23
Figure 7-18. VHF (136-162 MHz) Synthesizer Schematic Diagram (8486769Z04-C)........................ 7-24
Figure 7-19. VHF (136-162 MHz) Voltage Controlled Oscillator Schematic 
Diagram (8486769Z04-C) .............................................................................................. 7-25
Figure 7-20. VHF (136-162 MHz) Transmitter and Power Control Schematic 
Diagram  (8486769Z04-C) ............................................................................................. 7-26
Figure 7-21. VHF (136-162 MHz) Controller Interconnect Schematic Diagram (8486769Z04-C) ...... 7-27
Figure 7-22. VHF (136-162 MHz) Microprocessor Circuitry Schematic Diagram (8486769Z04-C).... 7-28
Figure 7-23. VHF (136-162 MHz) Audio Circuitry Schematic Diagram (8486769Z04-C) ................... 7-29
Figure 7-24. VHF (136-162 MHz) DC Regulation Schematic Diagram (8486769Z04-C) ................... 7-30
Figure 7-25. VHF (136-162 MHz) Board Component Side View (8486769Z04-C)............................. 7-31
Figure 7-26. VHF (136-162 MHz) Board Solder Side View (8486769Z04-C) ..................................... 7-32
VHF (136-162 MHz) Radio Parts List (8486769Z04-C)......................................................................... 7-33
Chapter 7 VHF (146-174 MHz) Schematic Diagrams, Overlays, and
Parts Lists (8486342Z09-A) .............................................. 7-21
Figure 7-27. VHF (146-174 MHz) Radio Circuit Block Interconnect Diagram (8486342Z09-A) ......... 7-21
Figure 7-28. VHF (146-174 MHz) Receiver Front End Schematic Diagram (8486342Z09-A)............ 7-22
Figure 7-29. VHF (146-174 MHz) Receiver Back End Schematic Diagram (8486342Z09-A) ............ 7-23
Figure 7-30. VHF (146-174 MHz) Synthesizer Schematic Diagram (8486342Z09-A) ........................ 7-24
Figure 7-31. VHF (146-174 MHz) Voltage Controlled Oscillator Schematic 
Diagram (8486342Z09-A)............................................................................................... 7-25
Figure 7-32. VHF (146-174 MHz) Transmitter and Power Control Schematic 
Diagram (8486342Z09-A)............................................................................................... 7-26
Figure 7-33. VHF (146-174 MHz) Controller Interconnect Schematic Diagram (8486342Z09-A) ...... 7-27
Figure 7-34. VHF (146-174 MHz) Microprocessor  Circuitry Schematic Diagram (8486342Z09-A) ... 7-28
Figure 7-35. VHF (146-174 MHz) Audio Circuitry Schematic Diagram (8486342Z09-A) ................... 7-29
Figure 7-36.  VHF (146-174 MHz) DC Regulation Schematic Diagram (8486342Z09-A) .................. 7-30
Figure 7-37. VHF (146-174 MHz) Board Component Side View (8486342Z09-A) ............................. 7-31
Figure 7-38. VHF (146-174 MHz) Board Solder Side View (8486342Z09-A) ..................................... 7-32
VHF (146-174 MHz) Radio Parts List (8486342Z09-A) ......................................................................... 7-33
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June, 20056880309N62-C
Chapter 7 VHF (146-174 MHz) Schematic Diagrams, Overlays, and
Parts Lists (8486342Z13-C) .............................................. 7-37
Figure 7-39. VHF (146-174 MHz) Radio Circuit Block Interconnect Diagram (8486342Z13-C) ......... 7-37
Figure 7-40. VHF (146-174 MHz) Receiver Front End Schematic Diagram (8486342Z13-C)............ 7-38
Figure 7-41. VHF (146-174 MHz) Receiver Back End Schematic Diagram (8486342Z13-C) ............ 7-39
Figure 7-42. VHF (146-174 MHz) Synthesizer Schematic Diagram (8486342Z13-C) ........................ 7-40
Figure 7-43. VHF (146-174 MHz) Voltage Controlled Oscillator Schematic 
Diagram (8486342Z13-C)............................................................................................... 7-41
Figure 7-44. VHF (146-174 MHz) Transmitter and Power Control Schematic 
Diagram (8486342Z13-C)............................................................................................... 7-42
Figure 7-45. VHF (146-174 MHz) Controller Interconnect Schematic Diagram (8486342Z13-C) ...... 7-43
Figure 7-46. VHF (146-174 MHz) Microprocessor  Circuitry Schematic Diagram (8486342Z13-C) ... 7-44
Figure 7-47. VHF (146-174 MHz) Audio Circuitry Schematic Diagram (8486342Z13-C) ................... 7-45
Figure 7-48.  VHF (146-174 MHz) DC Regulation Schematic Diagram (8486342Z13-C) .................. 7-46
Figure 7-49. VHF (146-174 MHz) Board Component Side View (8486342Z13-C) ............................. 7-47
Figure 7-50. VHF (146-174 MHz) Board Solder Side View (8486342Z13-C) ..................................... 7-48
VHF (146-174 MHz) Radio Parts List (8486342Z13-C)  ........................................................................ 7-49
Chapter 7 VHF 146-174 MHz Schematic Diagrams, Overlays, and 
Parts Lists (8486769Z04-C) .............................................. 7-53
Figure 7-52. VHF (146-174 MHz) Radio Circuit Block Interconnect Diagram (8486769Z04-C) ......... 7-53
Figure 7-53. VHF (146-174 MHz) Receiver Front End Schematic Diagram (8486769Z04-C)............ 7-54
Figure 7-54. VHF (146-174 MHz) Receiver Back End Schematic Diagram (8486769Z04-C) ............ 7-55
Figure 7-55. VHF (146-174 MHz) Synthesizer Schematic Diagram (8486769Z04-C) ........................ 7-56
Figure 7-56. VHF (146-174 MHz) Voltage Controlled Oscillator Schematic 
Diagram (8486769Z04-C)............................................................................................... 7-57
Figure 7-57. VHF (146-174 MHz) Transmitter and Power Control Schematic 
Diagram  (8486769Z04-C).............................................................................................. 7-58
Figure 7-58. VHF (146-174 MHz) Controller Interconnect Schematic Diagram (8486769Z04-C) ...... 7-59
Figure 7-59. VHF (146-174 MHz) Microprocessor  Circuitry Schematic Diagram (8486769Z04-C) ... 7-60
Figure 7-60. VHF (146-174 MHz) Audio Circuitry Schematic Diagram (8486769Z04-C) ................... 7-61
Figure 7-61. VHF (146-174 MHz) DC Regulation Schematic Diagram (8486769Z04-C) ................... 7-62
Figure 7-62. VHF (146-174 MHz) Board Component Side View (8486769Z04-C) ............................. 7-63
Figure 7-63. VHF (146-174 MHz) Board Solder Side View (8486769Z04-C) ..................................... 7-64
VHF (146-174 MHz) Radio Parts List (8486769Z04-C) ......................................................................... 7-65
Chapter 8 403-440 MHz UHF Theory Of Operation............................ 8-1
8.1 Introduction .................................................................................................................................... 8-1
8.2 UHF Receiver ................................................................................................................................ 8-1
8.2.1 Receiver Front End ........................................................................................................... 8-1
8.2.2 Receiver Back End ........................................................................................................... 8-2
8.3 UHF Transmitter ............................................................................................................................ 8-3
8.3.1 Transmitter Power Amplifier.............................................................................................. 8-3
8.3.2 Antenna Switch ................................................................................................................. 8-3
8.3.3 Harmonic Filter.................................................................................................................. 8-3
8.3.4 Antenna Matching Network ............................................................................................... 8-4
8.3.5 Power Control ................................................................................................................... 8-4
8.4 UHF Frequency Generation Circuitry............................................................................................. 8-4
8.4.1 Fractional-N Synthesizer...................................................................................................8-5
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6880309N62-CJune, 2005
8.4.2 Voltage Controlled Oscillator (VCO) ................................................................................. 8-6
Chapter 9 438-470 MHz UHF Theory Of Operation............................ 9-1
9.1 Introduction .................................................................................................................................... 9-1
9.2 UHF Receiver ................................................................................................................................ 9-1
9.2.1 Receiver Front End ........................................................................................................... 9-1
9.2.2 Receiver Back End ........................................................................................................... 9-2
9.3 UHF Transmitter ............................................................................................................................ 9-3
9.3.1 Transmitter Power Amplifier ............................................................................................. 9-3
9.3.2 Antenna Switch ................................................................................................................. 9-3
9.3.3 Harmonic Filter ................................................................................................................. 9-3
9.3.4 Antenna Matching Network............................................................................................... 9-4
9.3.5 Power Control ................................................................................................................... 9-4
9.4 UHF Frequency Generation Circuitry ............................................................................................ 9-4
9.4.1 Fractional-N Synthesizer ..................................................................................................9-5
9.4.2 Voltage Controlled Oscillator (VCO) ................................................................................. 9-6
Chapter 10 465-495 MHz UHF Theory Of Operation.......................... 10-1
10.1 Introduction .................................................................................................................................. 10-1
10.2 UHF Receiver .............................................................................................................................. 10-1
10.2.1 Receiver Front End ......................................................................................................... 10-1
10.2.2 Receiver Back End .........................................................................................................10-2
10.3 UHF Transmitter .......................................................................................................................... 10-3
10.3.1 Transmitter Power Amplifier ........................................................................................... 10-3
10.3.2 Antenna Switch ............................................................................................................... 10-3
10.3.3 Harmonic Filter ............................................................................................................... 10-3
10.3.4 Antenna Matching Network............................................................................................. 10-4
10.3.5 Power Control ................................................................................................................. 10-4
10.4 UHF Frequency Generation Circuitry ..........................................................................................10-4
10.4.1 Fractional-N Synthesizer ................................................................................................ 10-5
10.4.2 Voltage Controlled Oscillator (VCO) ............................................................................... 10-6
Chapter 11 UHF Troubleshooting Tables ........................................... 11-1
11.1 Troubleshooting Table for Receiver............................................................................................. 11-1
11.2 Troubleshooting Table for Synthesizer ........................................................................................ 11-3
11.3 Troubleshooting Table for Transmitter......................................................................................... 11-4
11.4 Troubleshooting Table for Board and IC Signals ......................................................................... 11-6
Chapter 12 UHF Schematic Diagrams, Overlays, and Parts Lists ... 12-1
12.1 Introduction .................................................................................................................................. 12-1
12.1.1 Notes For All Schematics and Circuit Boards................................................................. 12-1
12.1.2 Six Layer Circuit Board ...................................................................................................12-3
12.2 Speaker and Microphone Schematic ...........................................................................................12-3
12.2.1 Speaker and Microphone Parts List................................................................................ 12-3
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June, 20056880309N62-C
Chapter 12 UHF (403-440 MHz) Schematic Diagrams, Overlays, and
Parts Lists (8486635Z03-O) .............................................. 12-5
Figure 12-3. UHF (403-440 MHz) Radio Circuit Block Diagram (8486635Z03-O).............................. 12-5
Figure 12-4. UHF (403-440 MHz) Receiver Front End Schematic Diagram (8486635Z03-O) ........... 12-6
Figure 12-5. UHF (403-440 MHz) Receiver Back End Schematic Diagram (8486635Z03-O)............ 12-7
Figure 12-6. UHF (403-440 MHz) Synthesizer Schematic Diagram (8486635Z03-O) ....................... 12-8
Figure 12-7. UHF (403-440 MHz) Voltage Controlled Oscillator Schematic 
Diagram (8486635Z03-O).............................................................................................. 12-9
Figure 12-8. UHF (403-440 MHz) Transmitter and Power Control Schematic 
Diagram (8486635Z03-O) ............................................................................................ 12-10
Figure 12-9. UHF (403-440 MHz) Controller Interconnect Schematic Diagram (8486635Z03-O) .... 12-11
Figure 12-10. UHF (403-440 MHz) Microprocessor  Circuitry Schematic Diagram (8486635Z03-O) 12-12
Figure 12-11. UHF (403-440MHz) Audio Circuitry Schematic Diagram (8486635Z03-O) .................. 12-13
Figure 12-12. UHF (403-440 MHz) DC Regulation Schematic Diagram (8486635Z03-O) ................. 12-14
Figure 12-13. UHF (403-440 MHz) Board Component Side View (8486635Z03-O) .......................... 12-15
Figure 12-14. UHF (403-440 MHz) Board Solder Side View (8486635Z03-O)................................... 12-16
UHF (403-440 MHz) Radio Parts List (8486635Z03-O) ...................................................................... 12-17
Chapter 12 UHF (438-470 MHz) Schematic Diagrams, Overlays, and
Parts Lists (8486348Z09-A) ............................................ 12-21
Figure 12-15. UHF (438-470 MHz) Radio Circuit Block Diagram (8486348Z09-A) ............................ 12-21
Figure 12-16. UHF (438-470 MHz) Receiver Front End Schematic Diagram (8486348Z09-A).......... 12-22
Figure 12-17. UHF (438-470 MHz) Receiver Back End Schematic Diagram (8486348Z09-A) .......... 12-23
Figure 12-18. UHF (438-470 MHz) Synthesizer Schematic Diagram (8486348Z09-A) ...................... 12-24
Figure 12-19. UHF (438-470 MHz) Voltage Controlled Oscillator Schematic 
Diagram (8486348Z09-A)............................................................................................. 12-25
Figure 12-20. UHF (438-470 MHz) Transmitter and Power Control Schematic 
Diagram (8486348Z09-A) ............................................................................................. 12-26
Figure 12-21. UHF (438-470 MHz) Controller Interconnect Schematic Diagram (8486348Z09-A) .... 12-27
Figure 12-22. UHF (438-470 MHz) Microprocessor  Circuitry Schematic Diagram (8486348Z09-A) . 12-28
Figure 12-23. UHF (438-470 MHz) Audio Circuitry Schematic Diagram (8486348Z09-A) ................. 12-29
Figure 12-24. UHF (438-470 MHz) DC Regulation Schematic Diagram (8486348Z09-A) ................. 12-30
Figure 12-25. UHF (438-470 MHz) Board Component Side View (8486348Z09-A) ........................... 12-31
Figure 12-26. UHF (438-470 MHz) Board Solder Side View (8486348Z09-A) ................................... 12-32
UHF (438-470 MHz) Radio Parts List (8486348Z09-A) ....................................................................... 12-33
Chapter 12 UHF (438-470 MHz) Schematic Diagrams, Overlays, and
Parts Lists (8486348Z13-C) ............................................ 12-37
Figure 12-27. UHF (438-470 MHz) Radio Circuit Block Diagram (8486348Z13-C) ............................ 12-37
Figure 12-28. UHF (438-470 MHz) Receiver Front End Schematic Diagram (8486348Z13-C) ......... 12-38
Figure 12-29. UHF (438-470 MHz) Receiver Back End Schematic Diagram (8486348Z13-C) .......... 12-39
Figure 12-30. UHF (438-470 MHz) Synthesizer Schematic Diagram (8486348Z13-C)...................... 12-40
Figure 12-31. UHF (438-470 MHz) Voltage Controlled Oscillator Schematic 
Diagram (8486348Z13-C)............................................................................................. 12-41
Figure 12-32. UHF (438-470 MHz) Transmitter and Power Control Schematic 
Diagram (8486348Z13-C)............................................................................................. 12-42
Figure 12-33. UHF (438-470 MHz) Controller Interconnect Schematic Diagram (8486348Z13-C) .... 12-43
Figure 12-34. UHF (438-470 MHz) Microprocessor  Circuitry Schematic Diagram (8486348Z13-C). 12-44
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6880309N62-CJune, 2005
Figure 12-35. UHF (438-470 MHz) Audio Circuitry Schematic Diagram (8486348Z13-C) ................. 12-45
Figure 12-36. UHF (438-470 MHz) DC Regulation Schematic Diagram (8486348Z13-C) ................. 12-46
Figure 12-37. UHF (438-470 MHz) Board Component Side View (8486348Z13-C) .......................... 12-47
Figure 12-38. UHF (438-470 MHz) Board Solder Side View (8486348Z13-C)................................... 12-48
UHF (438-470 MHz) Radio Parts List (8486348Z13-C) ...................................................................... 12-49
Chapter 12 UHF (465-495 MHz) Schematic Diagrams, Overlays, and
Parts Lists (8486634Z02-O) ............................................ 12-53
Figure 12-39. UHF (465-495 MHz) Radio Circuit Block Diagram (8486634Z02-O) ........................... 12-53
Figure 12-40. UHF (465-495 MHz) Receiver Front End Schematic Diagram (8486634Z02-O) ......... 12-54
Figure 12-41. UHF (465-495 MHz) Receiver Back End Schematic Diagram (8486634Z02-O) ......... 12-55
Figure 12-42. UHF (465-495 MHz) Synthesizer Schematic Diagram (8486634Z02-O) ..................... 12-56
Figure 12-43. UHF (465-495 MHz) Voltage Controlled Oscillator Schematic 
Diagram (8486634Z02-O) ............................................................................................ 12-57
Figure 12-44. UHF (465-495 MHz) Transmitter and Power Control Schematic 
Diagram (8486634Z02-O)............................................................................................ 12-58
Figure 12-45. UHF (465-495 MHz) Controller Interconnect Schematic Diagram (8486634Z02-O).... 12-59
Figure 12-46. UHF (465-495 MHz) Microprocessor  Circuitry Schematic Diagram (8486634Z02-O) 12-60
Figure 12-47. UHF (465-495 MHz) Audio Circuitry Schematic Diagram (8486634Z02-O)................. 12-61
Figure 12-48. UHF (465-495 MHz) DC Regulation Schematic Diagram (8486634Z02-O)................. 12-62
Figure 12-49. UHF (465-495 MHz) Board Component Side View (8486634Z02-O) .......................... 12-63
Figure 12-50. UHF (465-495 MHz) Board Solder Side View (8486634Z02-O) .................................. 12-64
UHF (465-495 MHz) Radio Parts List (8486634Z02-O) ...................................................................... 12-65
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    							viiiTable of Contents
June, 20056880309N62-C
List of Figures
Figure 1-1. Programming/Test Cable.................................................................................................. 1-4
Figure 1-2. Wiring of the Connectors .................................................................................................. 1-4
Figure 2-1. DC Power Distribution Block Diagram .............................................................................. 2-1
Figure 4-1. VHF Receiver Block Diagram ...........................................................................................4-1
Figure 4-2. VHF Transmitter Block Diagram .......................................................................................4-3
Figure 4-3. VHF Frequency Generation Unit Block Diagram .............................................................. 4-5
Figure 4-4. VHF Synthesizer Block Diagram ...................................................................................... 4-6
Figure 4-5. VHF VCO Block Diagram ................................................................................................. 4-7
Figure 5-1. VHF Receiver Block Diagram ...........................................................................................5-1
Figure 5-2. VHF Transmitter Block Diagram .......................................................................................5-3
Figure 5-3. VHF Frequency Generation Unit Block Diagram .............................................................. 5-5
Figure 5-4. VHF Synthesizer Block Diagram ...................................................................................... 5-6
Figure 5-5. VHF VCO Block Diagram ................................................................................................. 5-7
Figure 7-1. Six-Layer Circuit Board: Copper Steps in Layer Sequence.............................................. 7-3
Figure 7-2. Speaker and Microphone Schematic................................................................................ 7-3
Figure 7-3. VHF (136-162 MHz) Radio Circuit Block Interconnect Diagram (8486769Z02-A) ........... 7-5
Figure 7-4. VHF (136-162 MHz) Receiver Front End Schematic Diagram (8486769Z02-A) .............. 7-6
Figure 7-5. VHF (136-162 MHz) Receiver Back End Schematic Diagram (8486769Z02-A) .............. 7-7
Figure 7-6. VHF (136-162 MHz) Synthesizer Schematic Diagram (8486769Z02-A) .......................... 7-8
Figure 7-7. VHF (136-162 MHz) Voltage Controlled Oscillator Schematic 
Diagram (8486769Z02-A)................................................................................................. 7-9
Figure 7-8. VHF (136-162 MHz) Transmitter and Power Control Schematic 
Diagram (8486769Z02-A) ............................................................................................... 7-10
Figure 7-9. VHF (136-162 MHz) Controller Interconnect Schematic Diagram (8486769Z02-A) ...... 7-11
Figure 7-10. VHF (136-162 MHz) Microprocessor  Circuitry Schematic Diagram (8486769Z02-A) ... 7-12
Figure 7-11. VHF (136-162 MHz) Audio Circuitry Schematic Diagram (8486769Z02-A) ................... 7-13
Figure 7-12. VHF (136-162 MHz) DC Regulation Schematic Diagram (8486769Z02-A) ................... 7-14
Figure 7-13. VHF (136-162 MHz) Board Top Side View (8486769Z02-A) ......................................... 7-15
Figure 7-14. VHF (136-162 MHz) Board Bottom Side View (8486769Z02-A) .................................... 7-16
Figure 7-15. VHF (136-162 MHz) Radio Circuit Block Interconnect Diagram (8486769Z04-C) ......... 7-21
Figure 7-16. VHF (136-162 MHz) Receiver Front End Schematic Diagram (8486769Z04-C)............ 7-22
Figure 7-17. VHF (136-162 MHz) Receiver Back End Schematic Diagram (8486769Z04-C) ............ 7-23
Figure 7-18. VHF (136-162 MHz) Synthesizer Schematic Diagram (8486769Z04-C) ........................ 7-24
Figure 7-19. VHF (136-162 MHz) Voltage Controlled Oscillator Schematic 
Diagram (8486769Z04-C)............................................................................................... 7-25
Figure 7-20. VHF (136-162 MHz) Transmitter and Power Control Schematic 
Diagram (8486769Z04-C)............................................................................................... 7-26
Figure 7-21. VHF (136-162 MHz) Controller Interconnect Schematic Diagram (8486769Z04-C) ...... 7-27
Figure 7-22. VHF (136-162 MHz) Microprocessor Circuitry Schematic Diagram (8486769Z04-C) .... 7-28
Figure 7-23. VHF (136-162 MHz) Audio Circuitry Schematic Diagram (8486769Z04-C) ................... 7-29
Figure 7-24. VHF (136-162 MHz) DC Regulation Schematic Diagram (8486769Z04-C) ................... 7-30
Figure 7-25. VHF (136-162 MHz) Board Component Side View (8486769Z04-C) ............................. 7-31
Figure 7-26. VHF (136-162 MHz) Board Solder Side View (8486769Z04-C) ..................................... 7-32
Figure 7-27. VHF (146-174 MHz) Radio Circuit Block Interconnect Diagram (8486342Z09-A) ......... 7-21
Figure 7-28. VHF (146-174 MHz) Receiver Front End Schematic Diagram (8486342Z09-A) ............ 7-22
Figure 7-29. VHF (146-174 MHz) Receiver Back End Schematic Diagram (8486342Z09-A) ............ 7-23
Figure 7-30. VHF (146-174 MHz) Synthesizer Schematic Diagram (8486342Z09-A) ........................ 7-24
Figure 7-31. VHF (146-174 MHz) Voltage Controlled Oscillator Schematic 
Diagram (8486342Z09-A)............................................................................................... 7-25
Figure 7-32. VHF (146-174 MHz) Transmitter and Power Control Schematic 
Diagram (8486342Z09-A) ............................................................................................... 7-26
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