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Motorola Radius Cm200 Cm300 Pm400 Detailed 6881098c00 A Manual

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    							CM200/CM300/PM400
    Radios
    UHF3 (465-495 MHz) 25-40 W
    Service Information
    Issue: November, 2007
    M 
    						
    							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 1MODEL CHART AND TECHNICAL SPECIFICATIONS
    1.0 PM400 Model Chart ............................................................................................. 1-1
    2.0 Technical Specifications ...................................................................................... 1-2
    Chapter 2THEORY OF OPERATION
    1.0 Introduction .......................................................................................................... 2-1
    2.0 UHF (465-495 MHz) Receiver ............................................................................. 2-1
    2.1 Receiver Front-End...................................................................................... 2-1
    2.2 Receiver Back End ...................................................................................... 2-2
    3.0 UHF Transmitter Power Amplifier (465-495 MHz) ............................................... 2-2
    3.1 First Power Controller Stage........................................................................ 2-2
    3.2 Power Controlled Driver Stage.................................................................... 2-3
    3.3 Final Stage................................................................................................... 2-3
    3.4 Directional Coupler ...................................................................................... 2-3
    3.5 Antenna Switch ............................................................................................ 2-3
    3.6 Harmonic Filter ............................................................................................ 2-4
    3.7 Power Control .............................................................................................. 2-4
    4.0 UHF (465-495 MHz) Frequency Synthesizer ....................................................... 2-4
    4.1 Reference Oscillator .................................................................................... 2-4
    4.2 Fractional-N Synthesizer ............................................................................. 2-5
    4.3 Voltage Controlled Oscillator (VCO) ............................................................ 2-6
    4.4 Synthesizer Operation ................................................................................. 2-7
    5.0 Controller Theory of Operation............................................................................ 2-8
    5.1 Radio Power Distribution ............................................................................. 2-8
    5.2 Protection Devices ..................................................................................... 2-10
    5.3 Automatic On/Off ....................................................................................... 2-10
    5.4 Microprocessor Clock Synthesiser ............................................................ 2-11
    5.5 Serial Peripheral Interface (SPI) ................................................................ 2-12
    5.6 SBEP Serial Interface ................................................................................ 2-12
    5.7 General Purpose Input/Output ................................................................... 2-12
    5.8 Normal Microprocessor Operation ............................................................. 2-13
    5.9 Static Random Access Memory (SRAM) ................................................... 2-14
    6.0 Control Board Audio and Signalling Circuits ...................................................... 2-14
    6.1 Audio Signalling Filter IC and Compander (ASFIC CMP) .......................... 2-14
    7.0 Transmit Audio Circuits ...................................................................................... 2-15
    7.1 Microphone Input Path............................................................................... 2-15
    7.2 PTT Sensing and TX Audio Processing .................................................... 2-16
    8.0 Transmit Signalling Circuits ............................................................................... 2-17
    8.1 Sub-Audio Data (PL/DPL).......................................................................... 2-17
    8.2 High Speed Data ....................................................................................... 2-18
    8.3 Dual Tone Multiple Frequency (DTMF) Data............................................. 2-18 
    						
    							iv
    9.0 Receive Audio Circuits....................................................................................... 2-19
    9.1 Squelch Detect .......................................................................................... 2-19
    9.2 Audio Processing and Digital Volume Control ........................................... 2-20
    9.3 Audio Amplification Speaker (+) Speaker (-) ............................................. 2-20
    9.4 Handset Audio ........................................................................................... 2-21
    9.5 Filtered Audio and Flat Audio .................................................................... 2-21
    10.0 Receive Signalling Circuits ................................................................................ 2-21
    10.1 Sub-Audio Data (PL/DPL) and High Speed Data Decoder........................ 2-21
    10.2 Alert Tone Circuits ..................................................................................... 2-22
    Chapter 3TROUBLESHOOTING CHARTS
    1.0 Troubleshooting Flow Chart for Receiver RF (Sheet 1 of 2) ................................ 3-2
    1.1 Troubleshooting Flow Chart for Receiver (Sheet 2 of 2) ............................. 3-3
    2.0 Troubleshooting Flow Chart for 40 W Transmitter (Sheet 1 of 3) ........................ 3-4
    2.1 Troubleshooting Flow Chart for 40 W Transmitter (Sheet 2 of 3) ................ 3-5
    2.2 Troubleshooting Flow Chart for 40 W Transmitter (Sheet 3 of 3) ................ 3-6
    3.0 Troubleshooting Flow Chart for Synthesizer........................................................ 3-7
    4.0 Troubleshooting Flow Chart for VCO................................................................... 3-8
    5.0 Troubleshooting Flow Chart for DC Supply (1 of 2) ............................................. 3-9
    5.1 Troubleshooting Flow Chart for DC Supply (2 of 2) ................................... 3-10
    Chapter 4UHF3 PCB/ SCHEMATICS/ PARTS LISTS
    1.0 Allocation of Schematics and Circuit Boards ....................................................... 4-1
    1.1 UHF3 and Controller Circuits....................................................................... 4-1
    2.0 UHF 25-40 W Band 3 PCB 8486577Z01 / Schematics ....................................... 4-3
    UHF3 Interconnection between Main Board and Power Amplifier 
    Compartment ...................................................................................................... 4-3
    UHF3 (465-495 MHz)  25-40 W 8486577Z01, Top Side  .................................... 4-4
    UHF3 (465-495 MHz) 25-40 W 8486577Z01, Bottom  Side  ............................... 4-5
    UHF3 (465-495 MHz) 25-40 W Main Circuit (Sht 1 of 2)  .................................... 4-6
    UHF3 (465-495 MHz) 25-40 W Main Circuit (Sht 2 of 2)  .................................... 4-7
    UHF3 (465-495 MHz) 25-40 W Transmitter (Sht 1 of 2)  ..................................... 4-8
    UHF3 (465-495 MHz) 25-40 W Transmitter (Sht 2 of 2)  ..................................... 4-9
    UHF3 (465-495 MHz) 25-40 W Synthesiser and VCO (Sht 1 of 2)  .................. 4-10
    UHF3 (465-495 MHz) 25-40 W Synthesiser and VCO (Sht 2 of 2)  .................. 4-11
    UHF3 (465-495 MHz) 25-40 W Receiver Front and Back End (Sht 1 of 2)  ...... 4-12
    UHF3 (465-495 MHz) 25-40 W Receiver Front and Back End (Sht 2 of 2)  ...... 4-13
    UHF3 (465-495 MHz) 25-40 W DC and Audio Circuits (Sht 1 of 2) .................. 4-14
    UHF3 (465-495 MHz) 25-40 W DC and Audio Circuits (Sht 2 of 2) .................. 4-15
    UHF3 (465-495 MHz) 25-40 W Microprocessor and Controller 
    Circuits (Sht 1 of 2)  ........................................................................................... 4-16
    UHF3 (465-495 MHz) 25-40 W Microprocessor and Controller 
    Circuits (Sht 2 of 2)  ........................................................................................... 4-17
    UHF3 (465-495 MHz) 25-40 W Power Control Circuit  ...................................... 4-18
    2.1 UHF3 PCB 8486577Z01 Parts List 25-40 W ............................................. 4-19 
    						
    							v
    3.0 UHF 25-40 W Band 3 PCB 8486577Z03 / Schematics ..................................... 4-31
    UHF3 Interconnection  between Main Board and Power 
    Amplifier Compartment  ..................................................................................... 4-31
    UHF3 (465-495 MHz)  25-40 W 8486577Z03, Top  Side  ................................. 4-32
    UHF3 (465-495 MHz)  25-40 W 8486577Z03, Bottom Side  ............................. 4-33
    UHF3 (465-495 MHz)  25-40 W Main Circuit (Sht 1 of 2)  ................................. 4-34
    UHF3 (465-495 MHz) 25-40 W Main Circuit (Sht 2 of 2)  .................................. 4-35
    UHF3 (465-495 MHz)  25-40 W Transmitter (Sht 1 of 2)  .................................. 4-36
    UHF3 (465-495 MHz) 25-40 W Transmitter (Sht 2 of 2)  ................................... 4-37
    UHF3 (465-495 MHz) 25-40 W Synthesiser and VCO (Sht 1 of 2) ................... 4-38
    UHF3 (465-495 MHz) 25-40 W Synthesiser and VCO (Sht 2 of 2) ................... 4-39
    UHF3 (465-495 MHz) 25-40 W Receiver Front and Back End (Sht 1 of 2)  ...... 4-40
    UHF3 (465-495 MHz)  25-40 W Receiver Front and Back End (Sht 2 of 2)  ..... 4-41
    UHF3 (465-495 MHz) 25-40 W DC and Audio Circuits (Sht 1 of 2) .................. 4-42
    UHF3 (465-495 MHz)  25-40 W DC and Audio Circuits (Sht 2 of 2) ................. 4-43
    UHF3 (465-495 MHz)  25-40 W Microprocessor and Controller 
    Circuits (Sht 1 of 2)  ........................................................................................... 4-44
    UHF3 (465-495 MHz) 25-40 W Microprocessor and Controller 
    Circuits (Sht 2 of 2)  ........................................................................................... 4-45
    UHF3 (465-495 MHz)  25-40 W Power Control Circuit ..................................... 4-46
    3.1 UHF3 PCB 8486577Z03 Parts List 25-40 W ............................................. 4-47 
    						
    							Chapter 1
    MODEL CHART AND TECHNICAL SPECIFICATIONS
    1.0 PM400 Model Chart
    UHF3, 25-40 W, 465-495 MHz
    Model Description
    AAM50SPF9AA3ANPM400 465-495 MHz, 25-40 W, 64 CH
    Item Description
    X PMUE2092_ PM400 Super Tanapa UHF3, 25-40 W, 64 CH
    XPMUE2038_PM400 Tanapa UHF3, 25-40 W, 64 CH
    X FLN3108_AN Control Head
    XPMUE2038_SPM400 UHF3 Service Board
    X 6881096C32 PM400 User Guide (bilingual)
    XHKLN4219PM400 User Guide CDROM (bilingual)
    x = Indicates one of each is required. 
    						
    							1-2 MODEL CHART AND TECHNICAL SPECIFICATIONS
    2.0 Technical Specifications
    Data is specified for +25°C unless otherwise stated.
    General
    Specification UHF3
    Frequency Range:465-495 MHz
    Frequency Stability
    (-30°C to +60°C, 25°C Ref.)±2.5 PPM
    Channel Capacity:PM400 - 64
    Channel Spacing: 12.5/25 kHz
    Power Supply:13.6 Vdc (10.88 Vdc - 16.32 Vdc) negative Vehicle 
    ground
    Dimensions (L x W x H)4.65” X 6.67” X 1.73” 
    (118mm X 169.5mm X 44mm)
    Weight2.25 lbs (1.01 kg)
    FCC Description ABZ99FT4049
    Operating Temperature-30 to 60° C (Display only -20°C to 60°C)
    Storage Temperature -40 to 85° C
    Thermal Shock-40 to 80° C
    High Humidity 95% RH @ 50° C for 8 hrs
    ESD15KV air discharge
    Packing Test Impact Test 
    						
    							Technical Specifications1-3
    Transmitter
    Specification UHF2
    Power Output25-40W
    Conducted/Radiated 
    Emissions:-26 dBm
    Audio Response: (from 6 dB/
    oct. Pre-Emphasis, 300 to 
    3000Hz)
    TIA603 and CEPT
    Tx Audio Distortion < 3%
    Modulation Limiting:±2.5 kHz @ 12.5 kHz
    ±4.0 kHz @ 20 kHz
    ±5.0 kHz @ 25 kHz
    FM Hum and Noise: -35 [email protected] kHz
    -40 dB@25 kHz
    Receiver
    Specification UHF2
    Sensitivity (12 dB SINAD):0.35 μV @ 12.5 kHz
    0.3 μV @ 25 kHz
    Intermodulation: 60 [email protected] kHz 
    70 dB@25 kHz 
    Adjacent Channel Selectivity:60 dB @ 12.5 kHz 
    70 dB @ 25 kHz 
    Spurious Response 70 dB 
    Rated Audio Power4 W (typ.) Internal
    7.5 W @ 5 % External
    Audio Distortion < 5 %
    Hum and Noise:-35 dB @ 12.5 kHz
    -40 dB @ 25 kHz
    Audio Response TIA603 and CEPT
    Conducted Spurious Emission 
    per FCC Part 15:-57 dBm 1 Ghz
    Specifications subject to change without notice. All electrical specifications and methods 
    refer to EIA/TIA 603 standards.  
    						
    							1-4 MODEL CHART AND TECHNICAL SPECIFICATIONS
    Notes 
    						
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