Motorola ASTRO XTS 3500 Basic Service Manual
  1. Manuals
  2. Brands
  3. Motorola Manuals
  4. Portable Radio
  5. ASTRO XTS 3500
  6. Basic service manual
Motorola ASTRO XTS 3500 Basic Service Manual

Motorola ASTRO XTS 3500 Basic Service Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

™
™
Digital XTS 3500
Portable Radios
Basic Service Manual
1

Advertisement

Table of Contents
loading

Related Manuals for Motorola ASTRO XTS 3500

Summary of Contents for Motorola ASTRO XTS 3500

  • Page 1 ™ ™ Digital XTS 3500 Portable Radios Basic Service Manual...
  • Page 2 To help you with your selection, a list is provided under “Related Publications” at the front of this manual. Safety Before operating an ASTRO XTS 3500 Radio, please read the “Safety Information” section in the front of this manual. Manual Revisions Changes which occur after this manual is printed are described in “FMRs.”...
  • Page 3 Front End Filter Alignment............21 A , Motorola, ASTRO, and Private-Line are registered trademarks of Motorola, Inc.
  • Page 4 ASTRO XTS 3500 Basic Features........

  • Page 5: Computer Software Copyrights

    Motorola, except for the normal non-exclusive license to use that arises by operation of law in the sale of a product.
  • Page 6 Portable Radio Model Numbering System Typical Model Number: Position: 12 13 Position 1 - Type of Unit Positions 13 - 16 D = Dash-Mounted Mobile Radio H = Hand-Held Portable “SP” Model Suffix M = Motorcycle Mobile Radio T = Trunk-Mounted Mobile Radio Position 12 - Unique Model Variations Positions 2 &...
  • Page 7 SPECIFICATIONS FOR VHF RADIOS All specifications are per Telecommunications Industries Association TIA-603 unless otherwise noted GENERAL RECEIVER TRANSMITTER FCC Designation: AZ489FT3799 Frequency Range: 136-174MHz RF Power: Temperature Range: 136-174MHz: 1 to 6 Watts Operating: –30°C to +60°C Bandwidth: 38MHz Storage: –40°C to +85°C Frequency Range: 136-174MHz...
  • Page 8 SPECIFICATIONS FOR UHF RADIOS All specifications are per Telecommunications Industries Association TIA-603 unless otherwise noted GENERAL RECEIVER TRANSMITTER FCC Designation: AZ489FT4828 Frequency Range: 450-520MHz RF Power: Temperature Range: 450-520MHz: 1 Watt/5 Watts Operating: –30°C to +60°C Bandwidth: 70MHz Storage: –40°C to +85°C Frequency Range: 450-520MHz Quieting Sensitivity (20dBQ):...
  • Page 9 Frequency Generation Unit FLASHport™ A Motorola term that describes the ability of a radio to change memory. Every FLASHport radio contains a FLASHport EEPROM memory chip that can be software written and rewritten to, again and again.
  • Page 10 Master Out Slave In; used by the master device to send data to the slave device. OMPAC Over-Molded Pad-Array Carrier; a Motorola custom IC package, distinguished by the presence of solder balls on the bottom pads. Open A controller configuration that utilizes a microprocessor with Architecture extended ROM and RAM.
  • Page 11 Squelch Muting of audio circuits when received signal levels fall below a pre-determined value. SRAM Static-RAM chip used for volatile, program/data memory. Synchronous Serial Interface on the DSP56603 to the CODEC, DSPS IC, and ADDAG. Standby Mode An operating mode whereby the radio is muted but still continues to monitor data.

  • Page 12: Safety Information

    Exposure To Radio Frequency Energy National and International Standards and Guidelines Your Motorola Two-Way Radio, which generates and radiates radio frequency (RF) electromagnetic energy (EME), is designed to comply with the following National and International Standards and Guidelines regarding exposure of human beings to radio frequency electromagnetic energy: •...

  • Page 13: Operational Warnings

    This product is powered by a nickel-cadmium (Ni-Cd), nickel-metal-hydride (NiMH), or lithium-ion rechargeable battery. Charge the battery before use to ensure optimum capacity and performance. The battery was designed specifically to be used with a Motorola charger. Charging in non-Motorola equipment may lead to battery damage and void the battery warranty.

  • Page 14: Intrinsically Safe Radio Information

    Contact your local waste management agency for specific requirements and information in your area. Motorola fully endorses and encourages the recycling of Ni-Cd batteries. In the U.S. and Canada, Motorola participates in the nationwide Rechargeable Battery Recycling Corporation (RBRC) program for Ni-Cd battery collection and recycling.
  • Page 15 Do Not Substitute Options or Accessories The Motorola communications equipment certified by Factory Mutual is tested as a system and consists of the FM Approved portable, FM Approved battery, and FM Approved accessories or options, or both. This FM Approved portable and battery combination must be strictly observed.
  • Page 16 Notes...

  • Page 17: Introduction

    Introduction General This manual covers information needed for level one troubleshooting. Level one troubleshooting consists of radio programming, radio alignment, knobs replacement, and installation and removal of antenna, belt clip, battery, and universal connector cover. Included in this manual are radio specifications for the VHF and UHF frequency bands, a general description of XTS 3500 models, recommended test equipment, service aids, radio alignment procedures, general maintenance recommendations, and procedures for basic assembly and...

  • Page 18: Radio Description

    Description way radios available. The radios are available in the VHF and UHF R2 bands. One of the newest in a long line of quality Motorola products, the ASTRO Digital XTS 3500 radio provides improved voice quality across more coverage area.

  • Page 19: Basic Maintenance

    Basic Maintenance Introduction This section of the manual describes preventive maintenance and handling precautions. Each of these topics provides information vital to the successful to This Section operation and maintenance of your radio. Preventive The ASTRO Digital XTS 3500 radios do not require a scheduled preventive maintenance program;...

  • Page 20: Handling Precautions

    Handling Complementary metal-oxide semiconductor (CMOS) devices, and other high- technology devices, are used in this family of radios. While the attributes of Precautions these devices are many, their characteristics make them susceptible to damage by electrostatic discharge (ESD) or high-voltage charges. Damage can be latent, resulting in failures occurring weeks or months later.

  • Page 21: Recommended Test Equipment And Service Aids

    “Characteristics” column is included so that equivalent equipment may be substituted; however, when no information is provided in this column, the specific Motorola model listed is either a unique item or no substitution is recommended. Table 2 Recommended Test Equipment...

  • Page 22: Field Programming Equipment

    Table 3 Service Aids Motorola Part Description Application Number RKN-4035_ RIB/Radio/Test Set Cable Connects radio to RTX-4005B Test Box and RIB. REX-4424_ Battery Eliminator Interconnects radio to power supply. RLN-4460_, or Portable Test Set Enables connection to the universal connector.

  • Page 23: Performance Checks

    Performance Checks Introduction This section covers performance checks used to verify the radio meets published specifications. The recommended test equipment listed in the to This Section previous section approaches the accuracy of the manufacturing equipment, with a few exceptions. Accuracy of the equipment must be maintained in compliance with the manufacturer’s recommended calibration schedule.

  • Page 24: Table 5. Front-Panel Access Test-Mode Displays

    Table 5 Front-Panel Access Test-Mode Displays Name of Display Description Appears “S S S S E E E E R R R R V V V V I I I I C C C C E E E E ” The literal string indicates the radio has entered Always.

  • Page 25: Table 6. Test Frequencies

    Table 6 Test Frequencies Test Channel UHF Band 2 TX #1 136.025 450.025 RX #1 136.075 450.075 TX #2 142.125 465.225 RX #2 142.075 465.275 TX #3 154.225 475.125 RX #3 154.275 475.275 TX #4 160.125 484.975 RX #4 160.175 485.025 TX #5 168.075...

  • Page 26: Non-Display Radio Test Mode

    5. Rotate the Two-Position Concentric Switch; “6 6 6 6 5 5 5 5 / / / / 0 0 0 0 ” and “6 6 6 6 5 5 5 5 / / / / 1 1 1 1 ” appear. 6.
  • Page 27 mode (non-display radio). Go to the “Control Top and Keypad Test Mode (Non-Display Radio)” section. NOTE: Each press of Side Button 1 will toggle between Control Top and Keypad test mode (non-display radio) and RF test mode (non-display radio). 3b. Press the Top Programmable Button (Emergency button) to stop the displays and put the radio into the RF test mode (non-display radio).

  • Page 28: Table 8. Receiver Performance Checks

    Table 8 Receiver Performance Checks Test Name System Analyzer Radio Test Set Comments Reference Mode: PWR MON 4th TEST MODE, 4 PTT to continuous Frequency error to be ≤ ±1.0kHz Frequency channel test frequency CSQ output at (during the antenna performance check) Monitor: Frequency error.

  • Page 29: Table 9. Transmitter Performance Checks

    Table 9 Transmitter Performance Checks Test Name System Analyzer Radio Test Set Comments Frequency error to be ≤ Reference Mode: PWR MON 4th TEST MODE, PTT to continuous Frequency channel test frequency 4 CSQ (during the ±1.0kHz. performance check). Monitor: Frequency error.
  • Page 30 Notes...

  • Page 31: Radio Alignment Procedures

    Radio Alignment Procedures Introduction This section describes both receiver and transmitter radio alignment procedures. to This Section General A personal computer (PC) and radio service software (RSS) are required to align the radio. Refer to the applicable RSS manual for installation and setup procedures for the software.

  • Page 32: Figure 2. Rss Service Menu Layout

    SERVICE F2 - TRANSMITTER ALIGNMENT MENU F1 - HELP F2 - REFERENCE OSCILLATOR ALIGNMENT F3 - TRANSMIT POWER ALIGNMENT F4 - TRANSMIT DEVIATION BALANCE (COMPENSATION) ALIGNMENT F5 - TRANSMIT DEVIATION LIMIT ALIGNMENT F10 - EXIT, RETURN TO SERVICE MENU F3 - RECEIVER ALIGNMENT MENU F2 - FRONT END BANDPASS FILTER ALIGNMENT...

  • Page 33: Reference Oscillator Alignment

    1. From the SERVICE MENU, press to select the TRANSMITTER ALIGNMENT MENU. 2. Press again to select the REFERENCE OSCILLATOR alignment screen. See Figure 4. MOTOROLA Radio Service Software Use UP/DOWN Arrows To Adjust Softpot. Model: H24SDC9PW5AN MAIN:SERVICE:TX ALIGN:REF OSC REFERENCE OSCILLATOR --------------------...

  • Page 34: Transmit Power Alignment

    ALIGNMENT MENU. 2. Press to select the TRANSMIT POWER alignment screen. The screen will indicate the transmit frequencies to be used. See Figure 5. MOTOROLA Radio Service Software Use UP/DOWN Arrows To Adjust Softpot. Model: H24SDH9PW7AN MAIN:SERVICE:TX ALIGN:TX POWER TRANSMIT POWER...

  • Page 35: Transmit Deviation Balance (Compensation) Alignment

    2. Press to select the TRANSMIT DEVIATION BALANCE (COMPENSATION) alignment screen. The screen will indicate the transmit frequencies to be used. See Figure 6. MOTOROLA Radio Service Software Use UP/DOWN Arrows To Adjust Softpot. Model: H24SDC9PW5AN MAIN:SERVICE:TX ALIGN:BAL ATTN TRANSMIT DEVIATION BALANCE (COMPENSATION)

  • Page 36: Transmit Deviation Limit Alignment

    2. Press to select the TRANSMIT DEVIATION LIMIT alignment screen. The screen will indicate the transmit frequencies to be used. See Figure 7. Alignment MOTOROLA Radio Service Software Use UP/DOWN Arrows To Adjust Softpot. Model: H24SDC9PW5AN MAIN:SERVICE:TX ALIGN:DEV.LIMIT TRANSMIT DEVIATION LIMIT...

  • Page 37: Front End Filter Alignment

    FRONT END FILTER (VHF AND UHF ONLY) screen. The screen will indicate the receive frequencies at which the filter is to be aligned. See Figure 8. MOTOROLA Radio Service Software Use UP/DOWN Arrows To Adjust Softpot. ASTRO...
  • Page 38 Notes...

  • Page 39: Basic Removal/Installation Procedures

    Basic Removal/Installation Procedures Introduction This section gives basic procedures for removing and installing the XTS 3500 radio’s: to This Section • Antenna, • Battery, • Belt Clip, • Universal Connector Cover, • Volume Knob, and • Frequency Knob. Antenna Installing the Screw the threaded end of the antenna into the antenna receptacle on the top of the radio.

  • Page 40: Belt Clip

    Installing the Battery 1. Turn off the radio and hold it with the back of the radio facing upward 2. Insert the top edge of the battery into the area at the top of the radio between the radio’s case and chassis. Make sure the three tabs on the radio chassis align with the three slots under the top edge of the battery.

  • Page 41: Universal Connector Cover

    Universal Connector When the universal connector is not in use, keep it covered Cover with the universal connector cover. C a u t i o n Installing the 1. Looking at the antenna side of the radio, insert the top (flat) hooked end of the cover Slot Universal Hooked End...

  • Page 42: Volume Knob

    Installing the 1. Hold the radio so that the top of the radio faces upward, and the front of the radio faces you. Frequency Knob 2. Align the lightpipe (5) so that its straight tab is over the slot for the illuminated pointer.

  • Page 43: Figure 9. Partial Exploded View

    Installing the 1. Place the o-ring (21) inside a new volume insert (9), and press it downward until it seats securely at the bottom of the insert. Volume Knob 2. Hold the radio so that the top of the radio faces upward, and the front of the radio faces you.

  • Page 44: Table 13. Partial Exploded View Parts List

    3605371Z01 KNOB, Volume 4305372Z01 INSERT RETAINER, Volume Knob 3305574Z03 LABEL, Motorola, Back - - - - - - - - - - LABEL, Flashport - - - - - - - - - - LABEL, Radio Serial Number - - - - - - - - - -...

  • Page 45: Basic Theory Of Operation

    Basic Theory of Operation General The ASTRO Digital XTS 3500 radio is a wideband, synthesized, fixed-tuned radio available in the VHF and UHF bands. All ASTRO Digital XTS 3500 radios Overview are capable of both analog operation (12.5kHz or 25kHz bandwidths) and ASTRO mode (digital) operation (12.5kHz only).

  • Page 46: Astro Mode Of Operation

    For signalling information, the DSP will decode the message and pass it to the microcontrol unit. When the radio is transmitting, microphone audio is passed through gain stages to the CODEC, where the signal is digitized. The CODEC passes digital data to the DSP, where pre-emphasis and low-pass (splatter) filtering are done.

  • Page 47: Vocon Board Basic Theory Of Operation

    The receiver back end consists of a two-pole crystal filter, an IF amplifier, a second two-pole crystal filter, and the digital back-end IC. The two-pole filters are wide enough to accommodate 4kHz modulation. Final IF filtering is done digitally in the DSP. The digital back-end IC consists of an amplifier, the second mixer, an IF analog-to-digital converter, a baseband down-converter, and a 2.4MHz synthesis circuit to provide a clock to the DSP-support IC on the VOCON...
  • Page 48 The audio CODEC performs analog-to-digital and digital-to-analog conversions on audio signals. The DSP controls squelch, deviation, and executes receiver and transmitter filtering. The DSP-support IC receives a 2.4MHz clock, and receives data and formats it for the DSP.

  • Page 49: Radio-Level Troubleshooting

    If the radio needs further troubleshooting, it must be sent to the depot. Board- and component-level and service information can be found in the “ASTRO Digital XTS 3500 Portable Radios Detailed Service Manual,” Motorola publication number 68P81089C81. Power-Up When the radio is turned on (power-up), the radio performs cursory tests to determine if its basic electronics and software are in working order.

  • Page 50: Operational Error Codes

    Operational Error During radio operation, the radio performs dynamic tests to determine if the radio is working properly. Problems detected during these tests Codes are presented as error codes on the radio’s display. The presence of an error code should prompt a user that a problem exists and that a service technician should be contacted.

  • Page 51: Table 18. Transmitter Troubleshooting Chart

    Table 18 Transmitter Troubleshooting Chart Correction or Test (Measurements Symptom Possible Cause Taken at Room Temperature) No RF Power Out 1. TX Power Level or Frequency Check TX power level and frequency programming (from RSS). 2. No PTT From Control Top Send radio to depot.

  • Page 53: Replacement Parts Ordering

    Send written orders to the following addresses: Replacement Parts/ Federal Government Orders: International Orders: Test Equipment/Manuals/ Crystal Service Items: Motorola Inc. Motorola Inc. Motorola Inc. United States and Canada United States and Canada United States and Canada Aftermarket Products Division...
  • Page 54 *6881089C80* *6881089C80* Motorola 8000 West Sunrise Boulevard Fort Lauderdale, Florida 33322 68P81089C80-A...

Table of Contents