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