Professional Radio GM Series Detailed Service Manual 6864115B62-B
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Professional Radio GM Series Detailed Service Manual 6864115B62-B Contents Section 1 Service Maintainability Section 2 Controlhead Service Information Section 3 Controller Service Information Section 4 VHF Service Information Section 5 UHF Service Information Section 6 Lowband Service Information WLS EMEA Publications Department, Jays Close, Viables Industrial Estate, Basingstoke, Hampshire, RG22 4PD, UK.
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Professional Radio GM Series Service Maintainability Issue: August 2002
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.
iii Table of Contents Chapter 1 INTRODUCTION 1.0 Scope of Manual ..................................................................................................1-1 2.0 Warranty and Service Support.............................................................................1-1 2.1 Warranty Period and Return Instructions .......................................................1-1 2.2 After Warranty Period .....................................................................................1-1 2.
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v SAFETY AND GENERAL INFORMATION IMPORTANT INFORMATION ON SAFE AND EFFICIENT OPERATION Read this infomation before using your radio. The information provided in this document supersedes the general safety information contained in user guides published prior to July 2000. For information regarding radio use in a hazardous atmosphere please refer to the Factory Mutual (FM) Approval Manual Supplement or Instruction Card, which is included with radio models that offer this capability.
vi ELECTROMAGNETIC INTERFERENCE/COMPATIBILITY NOTE Nearly every electronic device is susceptible to electromagnetic interference (EMI) if inadequately shielded, designed, or alternately configured for electromagnetic compatibility. Facilities To avoid electromagnetic interference and/or compatibility conflicts, turn off your radio in any facility where posted notices instruct you to do so. Hospitals or health care facilities may be using equipment that is sensitive to external RF energy.
vii OPERATIONAL WARNINGS For Vehicles With An Air Bag ! NOTE WARNING: Do not place a portable radio in the area over an air bag or in the air bag deployment area. Air bags inflate with great force. If a portable radio is placed in the air bag deployment area and the air bag inflates, the radio product may be propelled with great force and cause serious injury to occupants of vehicle.
viii Table 1: Table 1 Rated Power and Lateral Distance Radiated Power of Vehicle-installed Mobile Two-way Minimum Lateral Distance From Transmitting 7 to 15 Watts 30 cm (1 Ft) 16 to 50 Watts 60 cm (2 Ft) More than 50 Watts 90 cm (3 Ft) ANTENNA INSTALLATION Mobile Antennas Recommended mobile antenna installations are limited to metal body vehicles at the centre of the roof and centre of the trunk deck locations.
Chapter 1 INTRODUCTION 1.0 Scope of Manual This manual is intended for use by service technicians familiar with similar types of equipment. It contains service information required for the equipment described and is current as of the printing date. Changes which occur after the printing date may be incorporated by a complete Manual revision or alternatively as additions. NOTE Before operating or testing these units, please read the Safety Information Section in the front of this manual. 2.
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Warranty and Service Support 2.6 1-3 Technical Support Motorola Product Services is available to assist the dealer/distributors in resolving any malfunctions which may be encountered. UK/Ireland - Richard Russell Telephone: +44 (0) 1256 488 082 Fax: +44 01256 488 080 Email: BRR001@email.mot.com France - Lionel Lhermitte Telephone: +33 1 6929 5722 Fax: +33 1 6929 5904 Email: TXE037@email.mot.
1-4 3.0 INTRODUCTION Radio Model Information The model number and serial number are located on a label attached to the back of your radio. You can determine the RF output power, frequency band, protocols, and physical packages. The example below shows one mobile radio model number and its specific characteristics.
Chapter 2 MAINTENANCE 1.0 Introduction This chapter of the manual describes: 2.0 ■ preventive maintenance ■ safe handling of CMOS devices ■ repair procedures and techniques Preventive Maintenance The radios do not require a scheduled preventive maintenance program; however, periodic visual inspection and cleaning is recommended. 2.1 Inspection Check that the external surfaces of the radio are clean, and that all external controls and switches are functional.
2-2 MAINTENANCE NOTE 3.0 Always use a fresh supply of alcohol and a clean container to prevent contamination by dissolved material (from previous usage). Safe Handling of CMOS and LDMOS Complementary metal-oxide semiconductor (CMOS) devices are used in this family of radios. CMOS characteristics make them susceptible to damage by electrostatic or high voltage charges. Damage can be latent, resulting in failures occurring weeks or months later.
General Repair Procedures and Techniques 2-3 Chip Components Use either the RLN4062 Hot-Air Repair Station or the Motorola 0180381B45 Repair Station for chip component replacement. When using the 0180381B45 Repair Station, select the TJ-65 minithermojet hand piece. On either unit, adjust the temperature control to 370 °C (700 °F), and adjust the airflow to a minimum setting. Airflow can vary due to component density. ■ ■ ■ To remove a chip component: 1.
2-4 MAINTENANCE Shields Removing and replacing shields will be done with the R1070 station with the temperature control set to approximately 215°C (415°F) [230°C (445°F) maximum]. ■ ■ To remove the shield: 1. Place the circuit board in the R1070 circuit board holder. 2. Select the proper heat focus head and attach it to the heater chimney. 3. Add solder paste flux around the base of the shield. 4. Position the shield under the heat-focus head. 5.
Notes For All Schematics and Circuit Boards 5.0 2-5 Notes For All Schematics and Circuit Boards * Component is frequency sensitive. Refer to the Electrical Parts List for value and usage. 1. Unless otherwise stated, resistances are in Ohms (k = 1000), and capacitances are in picofarads (pF) or microfarads (µF). 2. DC voltages are measured from point indicated to chassis ground using a Motorola DC multimeter or equivalent. Transmitter measurements should be made with a 1.
2-6 MAINTENANCE CH ACT Channel Activity Indicator Signal (Fast Squelch) CH KP ID Control Head Keypad ID (Data) Lines CH REQUEST Control Head Request from Control Head *P CLK Clock Signal CNTLVLTG PA Power Control Voltage CNTR AUDIO Audio Lines of the Controller COL x Keypad Matrix Column x CSX Chip Select Line PCIC / FRACN DATA Data Signal DC POWER ON Electronic Switching On or Off of the Radio's Voltage Regulators DISCAUDIO Audio Output Signal from the Receiver IC ECLK Clock (not u
Notes For All Schematics and Circuit Boards 2-7 IN 5V RF REG Supply Voltage for 5V Regulator in RF Section INT KP COL Internal Keypad Matrix Column Signal INT KP ROW Internal Keypad Matrix Row Signal INT MIC Internal (from Control Head) Microphone Input INT SWB Internal Switched 13.2V Supply Voltage INT SWB+ Internal Switched 13.2V Supply Voltage IRQ Interrupt Request from Control Head K9V1 9.
2-8 MAINTENANCE RAM CS RAM Ship Select RDY Service Request Line from Option Board REF CS Reference Chip Select (not used) RESET Reset Line ROW x Keypad Matrix Row x RSSI Received Signal Strength Indicator RX ADAPT Flat TX Path Disable during Transmitter Key-up RX AUD RTN Option Board Input / Output of Receiver Audio Path RX FLAT FILTERED AUDIO Flat or Filtered Audio to Accessory Connector RXIN RF Signal from Antenna Switch into the Receiver RXINJ RF Signal from the VCO into the Mixer
Notes For All Schematics and Circuit Boards 2-9 VS MIC Voice Storage Audio Signal into Microphone Path VS RAC Voice Storage Row Address Clock Signal VSF Voltage Super Filtered (5V) VSTBY 5V Supply for *P when the Radio is switched off 4-LAYER CIRCUIT BOARD DETAIL VIEWING COPPER STEPS IN PROPER LAYER SEQUENCE SIDE 1 LAYER 1 (L1) LAYER 2 (L2) LAYER 3 (L3) LAYER 4 (L4) SIDE 2 INNER LAYERS
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Chapter 3 SERVICE AIDS 1.0 Recommended Test Tools Table 3-1 lists the service aids recommended for working on the radio. While all of these items are available from Motorola, most are standard workshop equipment items, and any equivalent item capable of the same performance may be substituted for the item listed. Table 3-1 Service Aids Motorola Part Number Description Application RLN4460_ Portable Test Set Enables connection to audio/accessory jack. Allows switching for radio testing.
3-2 2.0 SERVICE AIDS Test Equipment Table 3-2 lists test equipment required to service the radio and other two-way radios.
