T L Parker RDX-U3 Mobile Transmitter User Manual Technical manual

T L Parker Ltd Mobile Transmitter Technical manual

Technical manual

Digital XTS 3000Portable RadiosBasic Service ManualMotorola8000 West Sunrise BoulevardFort Lauderdale, Florida 3332268P81083C85-OTM TM
Foreword This manual covers all models of ASTRO™ Digital XTS 3000™ portable radios, unless otherwise specified. It includes all the information necessary to maintain peak product performance and maximum working-time using the pass/fail service approach. This basic level of service is typical of some local service centers, self-maintained customers, and some distributors. Included in this manual are: radio specifications for the 800MHz frequency band; a general description of ASTRO Digital XTS 3000 models; recommended test equipment, service aids, and tools; radio alignment procedures; fundamental disassembly/reassembly procedures; and general maintenance recommendations.For details on the operation of the radio, or board- or component-level troubleshooting, refer to the applicable manuals available separately. To help you with your selection, a list is provided in this manual, titled “Related Publications.” Safety Information In 1991 the Institute of Electrical and Electronics Engineers (IEEE), and in 1992 the American National Standards Institute (ANSI), updated the 1982 ANSI Standard for safety levels with respect to human exposure to RF energy. Over 120 scientists, engineers, and physicians from universities, government health agencies, and industry, after reviewing the available body of research, developed this updated Standard. In March, 1993, the Federal Communications Commission (FCC) proposed the adoption of this updated Standard. Motorola subscribes to the same safety standard for the use of its products. Proper operation of this radio will result in user exposure substantially below FCC recommended limits: • DO NOT hold the radio with the antenna very close to, or touching, exposed parts of the body, especially the face, ears, or eyes, while transmitting. Hold the radio in a vertical position with the microphone two to three inches away from the lips. • DO NOT hold the transmit switch (PTT) on when not actually desiring to transmit. • DO NOT allow children to play with any radio equipment containing a transmitter. • DO NOT operate this equipment near electrical blasting caps or in an explosive atmosphere. Under certain conditions, radios can interfere with blasting operations. When you are in the vicinity of construction work, look for, and observe, signs cautioning against radio transmissions. If radio transmission is prohibited, you must not transmit until out of the area. Furthermore, you must turn off your radio to prevent any accidental transmission. • DO NOT replace or charge batteries in a hazardous atmosphere. Contact sparking may occur while installing or removing batteries and cause an explosion. • Turn the radio off when removing or installing a battery.Anyone intending to use a radio in a hazardous area is advised to become familiar with the subject of intrinsic safety and with Section 70 of the National Fire Code, which is commonly referred to as Article 500 of the National Electric Code. Use of anything but factory supplied components may affect the approval and safety of the radio. Likewise, it is advised that servicing should be performed only by qualified personnel who adhere to the following Factory Mutual (FM) required warning: Modification of FM approved intrinsically safe radios will negate Factory Mutual Research Corporation (FMRC) approval. Airbag Warning StatementVEHICLES EQUIPPED WITH AIR BAGS An air bag inflates with great force. DO NOT place objects, including communication equipment, in the area over the air bag or in the air bag deployment area. If the communication equipment is improperly installed and the air bag inflates, this could cause serious injury. • Installation of vehicle communication equipment should be performed by a professional installer/technician qualified in the requirements for such installations. An air bag’s size, shape and deployment area can vary by vehicle make, model and front compartment configuration (for example, bench seat vs. bucket seats). • Contact the vehicle manufacturer’s corporate headquarters, if necessary, for specific air bag information for the vehicle make, model and front compartment configuration involved in your communication equipment installation. Manual Revisions Changes which occur after this manual is printed are described in “FMRs.” These FMRs provide complete information on changes including pertinent parts listing data. !W A R N I N G! !W A R N I N G!
i Table of Contents Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .inside front cover List of Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii List of Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii Related Publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii Portable Radio Model Numbering System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .iii SPECIFICATIONS FOR 800MHz RADIOS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .iv Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v 1 - Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Notations Used in This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Radio Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2FLASHport. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2 - Basic Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Introduction to This Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Preventive Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Handling Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 - Recommended Test Equipment and Service Aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Recommended Test Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Service Aids. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Field Programming Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4 - Performance Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 Introduction to This Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 5 - Radio Alignment Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 Introduction to This Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Reference Oscillator Alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Transmit Power Alignment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Transmit Deviation Balance (Compensation) Alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Transmit Deviation Limit Alignment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 6 - Basic Removal/Installation Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 Introduction to This Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Battery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Belt Clip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22Universal Connector Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23Frequency Knob . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23Volume Knob . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 , Motorola, ASTRO, XTS 3000, Private-Line, and Digital Private-Line are trademarks of Motorola, Inc. ® by Motorola Inc., Radio Products Group8000 W. Sunrise Blvd., Ft. Lauderdale, FL 33322Printed in U.S.A. 6/96 Basic Service Manual68P81083C85-O
ii 7 - Basic Theory of Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 General Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27Analog Mode of Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27ASTRO Mode of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28RF Board Basic Theory of Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28Controller Board Basic Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29Vocoder Board Basic Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 8 - Radio-Level Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Introduction to This Section. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31Power-Up Error Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31Operational Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Replacement Parts Ordering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . inside back cover List of Figures Figure 1. Radio Alignment Test Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Figure 2. RSS Service Menu Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Figure 3. Softpot Concept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Figure 4. Reference Oscillator Alignment Screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Figure 5. Transmit Power Alignment Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Figure 6. Transmit Deviation Balance (Compensation) Alignment Screen . . . . . . . . . . . . . . . . . 17Figure 7. Transmit Deviation Limit Alignment Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Figure 8. Partial Exploded View. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 List of Tables Table 1. ASTRO XTS 3000 Basic Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Table 2. Recommended Test Equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Table 3. Service Aids. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Table 4. Initial Equipment Control Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Table 5. Test Frequencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Table 6. Test Environments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Table 7. Receiver Performance Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Table 8. Transmitter Performance Checks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Table 9. Reference Oscillator Alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Table 10. Transmit Power Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Table 11. Transmit Deviation Limit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Table 12. Partial Exploded View Parts List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26Table 13. Local Oscillator and First IF Frequencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28Table 14. Power-Up Error Code Displays. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31Table 15. Operational Error Code Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32Table 16. Receiver Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32Table 17. Transmitter Troubleshooting Chart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33Table 18. Encryption Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Related Publications ASTRO Digital XTS 3000 Basic Model User’s Guide . . . . . . . . . . . . . . . . . . . . . . . . . .68P81083C70ASTRO Digital XTS 3000 Full-Featured Model User’s Guide . . . . . . . . . . . . . . . . . . . .68P81083C75ASTRO Digital XTS 3000 Detailed Service Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . .68P81083C90 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 Portable Radio Model Numbering System Position 1 - Type of UnitD = Dash-Mounted Mobile RadioM = Motorcycle Mobile RadioT =Trunk-Mounted Mobile RadioPositions 2 & 3 - Model SeriesPosition 4 - Frequency BandLess than 29.7MHz29.7 to 35.99MHz36 to 41.99MHz42 to 50MHz66 to 80MHz74 to 90MHzProduct Specific136 to 162MHz146 to 178MHz174 to 210MHz190 to 235MHz336 to 410MHz403 to 437MHz438 to 482MHz470 to 520MHzProduct Specific806 to 870MHz825 to 870MHz896 to 941MHz1.0 to 1.6GHz1.5 to 2.0GHzValues given represent range only; they arenot absolute.Position 5 - Power Level0 to 0.7 Watts0.7 to 0.9 Watts1.0 to 3.9 Watts4.0 to 5.0 Watts5.1 to 6.0 Watts6.1 to 10 WattsPosition 6 - Physical PackagesRF Modem OperationReceiver OnlyStandard Control; No DisplayStandard Control; With DisplayLimited Keypad; No DisplayLimited Keypad; With DisplayFull Keypad; No DisplayFull Keypad; With DisplayLimited Controls; No DisplayLimited Controls; Basic DisplayLimited Controls; Limited DisplayRotary Controls; Standard DisplayEnhanced Controls; Enhanced DisplayLow Profile; No DisplayLow Profile; Basic DisplayLow Profile; Basic Display, Full KeypadPosition 7 - Channel Spacing1 = 5kHz2 = 6.25kHz3 = 10kHz4 = 12.5kHz5 = 15kHz6 = 20/25kHz7 = 30kHz9 = Variable/ProgrammableTypical Model Number:Position:Position 8 - Primary OperationConventinal/SimplexConventional/DuplexTrunked Twin TypeDual Mode TrunkedDual Mode Trunked/DuplexTrunked Type ITrunked Type IIFDMA* Digital Dual ModeTDMA** Digital Dual ModeSingle SidebandGlobal Positioning Satellite CapableAmplitude Companded Sideband (ACSB)Programmable* FDMA = Frequency Division Multiple Access** TDMA = Time Division Multiple AccessPosition 9 - Primary System TypeConventionalPrivacy Plus®Clear SMARTNET™Advanced Conventional Stat-Alert™Enhanced Privacy Plus®Nauganet 888 SeriesJapan Specialized Mobile Radio (JSMR)Multi-Channel Access (MCA)CoveragePLUS™MPT1327* - PublicMPT1327* - PrivateRadiocomTone SignallingBinary SignallingPhonenet®ProgrammableSecure ConventionalSecure SMARTNET™* MPT = Ministry of Posts and TelecommunicationsPosition 10 - Feature Level1 = Basic2 = Limited Package3 = Limited Plus4 = Intermediate5 = Standard Package6 = Standard Plus7 = Expanded Package8 = Expanded Plus9 = Full Feature/ ProgrammablePosition 11 - VersionVersion Letter (Alpha) - Major ChangePosition 12 - Unique Model VariationsC = CenelecN = Standard PackagePositions 13 - 16“SP” Model Suffix1 23 4 5 6 7 8 9 10 11 1213141516T04S LF 9 P W 7 A N S P 0 104 = ASTROABCDFGHJKLM===========PQRSTUVWYZ==========A BCDEF======10.1 to 15 Watts16 to 25 Watts26 to 35 Watts36 to 60 WattsG HJKL====A BCDEFGHJKLMNPQR================A BCDEFGHJKLMP=============A BCDEFGHJKLMNPQWXY================== = 61 to 110 WattsH = Hand-Held PortableH 0 9 U C F 9 P W 7 A N S P 0 109 = XTS 3000
iv SPECIFICATIONS FOR 800 MHz RADIOS All specifications are per Electronic Industries Association (EIA) 316B unless otherwise noted . GENERAL RECEIVER TRANSMITTER FCC Designation: AZ489FT5774 Temperature Range:Operating: –30 ° C to +60 ° C Storage: –40 ° C to +85 ° C Power Supply: Nickel-Cadmium Battery (NiCd) or Nickel-Metal-Hydride Battery (NiMH) Battery Voltage:Nominal: 7.5 Volts Range: 6 to 9 Volts Recommended Battery:Ultra-HIgh Capacity NiMH: H335AC or Ultra–High Capacity NiCd FM: H223AX* or NiMH FM IS: Q393AB Optional FM (Factory Mutual) Battery: * FM Intrinsically Safe: Class I, II, III, Division 1, Groups D, F, and G Dimensions (H x W x D) Note: 2.44" = width at PTT; 2.34" = width at bottom; 1.83" = depth at speaker; 0.97" = depth at keypad Less Battery: 6.58" x 2.44" x 1.83"/6.58" x 2.34" x 0.97"(167.13mm x 61.90mm x 46.42mm/167.13mm x 59.49mm x 24.56mm) With Ultra-High Capacity NiMH Battery: 6.58" x 2.44" x 1.83"/6.58" x 2.34" x1.65"(167.13mm x 61.90mm x 46.42mm/167.13mm x 59.49mm x 41.97mm) With Ultra-High Capacity NiCd Battery: 6.58" x 2.44" x 1.83"/6.58" x 2.34" x1.65"(167.13mm x 61.90mm x 46.42mm/167.13mm x 59.49mm x 41.97mm) With NiMH FM IS Battery: 6.58" x 2.44" x 1.83"/6.58" x 2.34" x1.65"(167.13mm x 61.90mm x 46.42mm/167.13mm x 59.49mm x 41.97mm) Weight: (w/Helical Antenna)Less Battery: 14.10oz. (383gm) With Ultra-High Cap. NiMH: 23.45oz. (644gm) With Ultra-High Cap. NiCd: 25.19oz. (693gm) With NiMH FM IS: 23.45oz. (644gm) Frequency Range: 851–870MHz Bandwidth: 19MHz Quieting Sensitivity (20dBQ): 0.5 µ V Max. Usable Sensitivity(12dB SINAD): 0.35 µ V Max. Intermodulation: –70dB Selectivity(25kHz Adjacent Channel): –70dB Spurious Rejection: –70dB Frequency Stability(–30+60 ° C; 25 ° C reference): ± .00015% Rated Audio: 500mW Distortion (At Rated Audio): 3% Typical Channel Spacing: 25kHz RF Power: 3 Watts Frequency Range: 806–825MHz851–870MHz Frequency Stability(–30 to +60 ° C; 25 ° C ref.): ± .00015% Emission (Conducted and Radiated): –46dBw FM Hum and Noise(Companion Receiver): –40dB Distortion: 3% Typical Modulation Limiting: ± 5kHz (821-824MHz): ± 4kHz Emissions Designators: 20K0F1E, 16K0F3E, 15K0F2D, 15K0F1D, and 8K10F1E Specifications subject to change without notice
v GLOSSARY A/D A nalog to D igital converter; converts an instantaneous dc voltage level to a corresponding digital value. ABACUS IC Custom integrated circuit providing a digital receiver IF backend.ADSIC ABACUS/DSP Support IC; custom integrated circuit providing peripheral functions for the DSP.ALC Automatic Level Control; a circuit in the transmit RF path that controls RF power amplifier output, provides leveling over frequency and voltage, and protects against high VSWR.D/A Digital to Analog converter; converts a digital value to a corresponding dc voltage value.DTMF Dual Tone Multi-FrequencyDPL Digital Private-Line™DSP Digital Signal Processor; microcontroller specifically tailored for signal processing computations. In this case refers specifically to Motorola DSP56001.Firmware Software or a software/hardware combination of computer programs and data, with a fixed logic configuration stored in a read-only memory; information can not be altered or reprogrammed.FGU Frequency Generation UnitFLASHport™ 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.Host Motorola HC11F1 microcontrol unit U204 (see MCU).Host Port Parallel memory mapped interface consisting of eight registers in the DSP56001.IC Integrated CircuitIMBE A sub-band, voice encoding algorithm used in ASTRO digital voice.ISW Inbound Signalling Word; data transmitted on the control channel from a subscriber unit to the central control unit.LSH Low Speed Handshake; 150 baud digital data sent to the radio during trunked operation while receiving audio.MCU MicroControl UnitMDC Motorola Digital Communications
viMISO Master In Slave Out; used by the slave device to send data to the master device.MOSI 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 Architecture A controller configuration that utilizes a microprocessor with extended ROM, RAM, and EEPROM.OSW Outbound Signalling Word; data transmitted on the control channel from the central controller to the subscriber unit.PC Board Printed Circuit boardPL Private-Line® tone squelch; a continuous sub-audible tone that is transmitted along with the carrier.PLL Phase-Locked Loop; a circuit in which an oscillator is kept in phase with a reference, usually after passing through a frequency divider.PTT Push-To-Talk; the switch located on the left side of the radio which, when pressed, causes the radio to transmit.Registers Short-term data-storage circuits within the microcontrol unit or programmable logic IC.Repeater Remote transmit/receive facility that re-transmits received signals in order to improve communications coverage.RESET Reset line; an input to the microcontroller that restarts execution.RF PA Radio Frequency Power AmplifierRSS Radio Service SoftwareRPT/TA RePeaTer/Talk-AroundRX DATA Recovered digital data line.Signal Qualifier Mode An operating mode whereby the radio is muted but still continues to analyze receive data to determine RX signal type.SCI IN Serial Communication Interface INput lineSLIC Support-Logic IC; a custom gate array used to provide I/O and memory expansion for the microcontroller.Softpot Software potentiometer; a computer-adjustable electronic attenuator.Software Computer programs, procedures, rules, documentation, and data pertaining to the operation of a system.SPI Serial Peripheral Interface; how the microcontroller communicates to modules and ICs through the CLOCK and DATA lines.
viiSquelch Muting of audio circuits when received signal levels fall below a pre-determined value.SRAM Static-RAM chip used for volatile, program/data memory.SSI Synchronous Serial Interface on the DSP56001 consisting of six signals and used for an RX and TX modulated data interface to the ADSIC.Standby Mode An operating mode whereby the radio is muted but still continues to monitor data.System Central Controllers Main control unit of the trunked dispatch system; handles ISW and OSW messages to and from subscriber units (see ISW and OSW).System Select The act of selecting the desired operating system with the system-select switch (also, the name given to this switch).TOT Time-Out Timer; a timer that limits the length of a transmission.TSOP Thin Small-Outline PackageUART Universal Asynchronous Receiver Transmitter.µCMicrocontrol unit (see MCU).VCO Voltage-Controlled Oscillator; an oscillator whereby the frequency of oscillation can be varied by changing a control voltage.VCOB IC Voltage-Controlled Oscillator Buffer ICVocoder VOice enCODER; the DSP-based system for digitally processing the analog signals, includes the capabilities of performing voice compression algorithms or voice encoding.VOCON VOcoder/CONtroller boardVSELP Vector Sum Excited Linear Predictive coding; a voice encoding technique used in ASTRO digital voice.VSWR Voltage Standing Wave Ratio
viiiNotes
1Introduction 1General 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. This will be the only level of service allowed for the service centers, self-maintained customers, and distributors for the first six months of the life of this product.Included in this manual are radio specifications for the 800MHz frequency band, a general description of XTS 3000 models, recommended test equipment, service aids, radio alignment procedures, general maintenance recommendations, and procedures for basic assembly and disassembly.Notations Used in This Manual Throughout the text in this publication, you will notice the use of warnings, cautions, and notes. These notations are used to emphasize that safety hazards exist, and care must be taken and observed.NOTE: An operational procedure, practice, or condition, etc., which is essential to emphasize.CAUTION indicates a potentially hazardous situation which, if not avoided, may result in equipment damage. !C a u t i o nWARNING indicates a potentially hazardous situation which, if not avoided, could result in death or injury. !W A R N I N G!DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or injury.D A N G E R!
2Radio Description The ASTRO Digital XTS 3000 radios are among the most sophisticated two-way radios available. The radio is presently available in the 800MHz band; radios in the UHF and VHF bands will be available by the end of 1996.One of the newest in a long line of quality Motorola products, the ASTRO Digital XTS 3000 radio provides improved voice quality across more coverage area. The digital process called “embedded signalling” intermixes system signalling information with digital voice, resulting in improved system reliability and the capability of supporting a multitude of advanced features. Such features add up to better, more cost-effective two-way radio communications.ASTRO Digital XTS 3000 radios are available in two basic models. Table 1 provides a description of their basic features.FLASHport The ASTRO Digital XTS 3000 radio utilizes Motorola’s revolutionary FLASHport technology. FLASHport makes it possible to add software that drives the radio’s capabilities both at the time of purchase and later on. Previously, changing a radio’s features and capabilities meant significant modifications, or buying a new radio. But now, similar to how a computer can be loaded with different software, the radio’s features and capabilities can be upgraded with FLASHport software.Table 1 ASTRO XTS 3000 Basic FeaturesFeature Basic Model Full-Featured Model Display None LCD4 lines/12 characters per line Keypad None 3 x 6 buttonChannel Capability 48 255Dialing from Prestored List No YesProgrammable Softkeys No Yes
3Basic Maintenance 2Introduction to This Section This section of the manual describes preventive maintenance and handling precautions. Each of these topics provides information vital to the successful operation and maintenance of your radio.Preventive Maintenance The ASTRO Digital XTS 3000 radios do not require a scheduled preventive maintenance program; however, periodic visual inspection and cleaning is recommended.Inspection Check that the external surfaces of the radio are clean, and that all external controls and switches are functional. A detailed inspection of the interior electronic circuitry is not needed.Cleaning The following procedures describe the recommended cleaning agents and the methods to be used when cleaning the external surfaces of the radio. External surfaces include the housing assembly and battery case. These surfaces should be cleaned whenever a periodic visual inspection reveals the presence of smudges, grease, and/or grime.The only recommended agent for cleaning the external radio surfaces is a 0.5% solution of a mild dishwashing detergent, such as JOY®, in water.Cleaning External Plastic Surfaces (The detergent-water solution should be applied sparingly with a stiff, non-metallic, short-bristled brush to work all loose dirt away from the radio. A soft, absorbent, lintless cloth or tissue should be used to remove the solution and dry the radio. Make sure that no water remains entrapped near the connectors, cracks, or crevices.The effects of certain chemicals and their vapors can have harmful results on certain plastics. Aerosol sprays, tuner cleaners, and other chemicals should be avoided.!C a u t i o n
4Handling Precautions Complementary metal-oxide semiconductor (CMOS) devices, and other high-technology devices, are used in this family of radios. While the attributes of 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. Therefore, special precautions must be taken to prevent device damage during disassembly, troubleshooting, and repair. Handling precautions are mandatory for this radio, and are especially important in low-humidity conditions. At this time, troubleshooting and repair of the radio will not be supported by the field or self-maintained customer. DO NOT attempt to disassemble the radio.
5Recommended Test Equipment and 3Service Aids RecommendedTest EquipmentThe list of equipment contained in Table 2 includes all of the standard test equipment required for servicing two-way portable radios, as well as several unique items designed specifically for servicing this family of radios. The “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.Service Aids Refer to Table 3, “Service Aids,” for a listing and description of the service aids designed specifically for servicing this family of radios. These kits and/or parts are available from the Motorola Parts Division offices listed in the “Replacement Parts Ordering” section located on the inside back cover of this manual. While all of these items are available from Motorola, most are standard shop equipment items, and any equivalent item capable of the same performance may be substituted for the item listed.Table 2 Recommended Test EquipmentMotorolaModel Number Description Characteristics ApplicationR2670 or R2600 System Analyzer This monitor will substitute for items with an asterisk (*). Frequency/deviation meter and signal generator for wide-range troubleshooting and alignment.R1049A* Digital Multimeter Recommended for ac/dc voltage and current measurementsR1150C* Code Synthesizer Injection of audio and digital signalling codesS1053D*SKN6008A*SKN6001A*AC VoltmeterPower Cable for MeterTest Leads for Meter1mV to 300V, 10-Megohm input impedance Audio voltage measurementsR1094A Dual-Trace Oscillo-scope 20MHz bandwidth 5mV to 5V/division Waveform measurementsS1350C*ST1213B (VHF)*ST1223B (UHF)*WattmeterPlug-In ElementRF Dummy Load50-ohm, ±5% accuracy10 watts, maximum0-1000MHz, 300WTransmitter power output measurementsR1065 Load Resistor 10-watt Broadband For use with wattmeterS1339A RF Millivolt Meter 100µV to 3V RF RF-level measurementsR1013A* SINAD Meter Receiver sensitivity measurementsS1347D or S1348D (programmable) DC Power Supply 0-20Vdc, 0-5 Amps current limited Bench supply for 7.5Vdc
6Field Programming EquipmentThis family of radios can be aligned and programmed in the field. This requires specific equipment and special instructions. Refer to the applicable “Radio Service Software User's Guide” for complete field programming information.Table 3 Service AidsMotorola Part Number Description ApplicationRKN-4035D RIB/Radio/Test Set Cable Connects radio to RTX-4005B Test Box and RIB.REX-4424 Battery Eliminator Interconnects radio to power supply.RLN-4460A, orRTX-4005B, or both RTX-4005A and RPX-4665APortable Test Set Enables connection to the universal connector.Allows switching for radio testing.Field Modification Kit RLN-1015A orRLN-4008BRadio Interface Box Enables communications between the radio and the computer's serial communications adapter.01-80357A57 Wall-Mounted Power Supply Used to supply power to the RIB (120 Vac).01-80358A56 Wall-Mounted Power Supply Used to supply power to the RIB (220 Vac).30-80369B71 or 30-80369B72 Computer Interface Cable Use B72 for the IBM PC AT. All other IBM models use B71. Connects the computer's serial communications adaptor to the RIB.RVN-4100F Radio Service Software Software on 3-1/2 in. and 5-1/4 in. floppy disks.58-80348B33 SMA to BNC Adaptor Adapts radio’s antenna port to BNC cabling of test equipment.
7Performance Checks 4Introduction to This Section This section covers performance checks used to verify the radio meets published specifications. The recommended test equipment listed in the 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.Setup Supply voltage can be connected from the battery eliminator. The equipment required for alignment procedures is connected as shown in the “Radio Alignment Test Setup” diagram (page 13, Figure 1).Initial equipment control settings should be as indicated in the following table, and should hold for all alignment procedures except as noted in Table 4.Test ModeRF Test Mode When the ASTRO Digital XTS 3000 radio is operating in its normal environment, the radio's microcomputer controls the RF channel selection, transmitter key-up, and receiver muting. However, when the unit is on the bench for testing, alignment, or repair, it is removed from its normal environment. It cannot receive commands from its system and, therefore, the internal microcomputer will not key the transmitter nor unmute the receiver. This prevents the use of normal tune-up procedures. To solve this problem a special routine, called TEST MODE or “air test,” has been incorporated in the radio.Table 4 Initial Equipment Control SettingsSystem Analyzer Test Set Power SupplyMonitor Mode: Pwr Mon Spkr Set: A Voltage: 7.5VdcRF Attn: –70dB Spkr/Load: Speaker DC On/Standby: StandbyAM, CW, FM: FM PTT: OFF (center) Volt Range: 10VdcO'scope Source: ModO'scope Horiz: 10mSec/DivO'scope Vert: 2.5kHz/DivO'scope Trig: AutoMonitor Image: HiMonitor BW: NarMonitor Squelch: Mid CWMonitor Vol: 1/4 CWCurrent: 2.5Amps
8To enter the test mode:1. Turn the radio on and adjust the volume for a comfortable listening level. The volume level remains constant once in the test mode.2. Within 10 seconds after the “ ” is complete, press Side Button 3 five times in succession.3. After “ ” appears, press the Top Programmable Button (normally programmed as the emergency button) once. “ ” appears, indicating: test frequency 1, carrier squelch mode.4. Each additional press of Side Button 3 will advance to the next test channel. (Refer to Table 5.)5. Pressing Side Button 2 will scroll through and access test environments as shown in Table 6.NOTE: Transmit into a load when keying a radiounder test. * All deviation values are based on deviation tuning of this mode.Table 5 Test FrequenciesTest Channel 800MHzTX #1 806.0125RX #1 851.0625TX #2 815.0125RX #2 860.0625TX #3 824.9875RX #3 869.9375TX #4 851.0125RX #4 851.0625TX #5 860.0125RX #5 860.0625TX #6 869.9875RX #6 869.9375TX #7 NoneRX #7 NoneTable 6 Test EnvironmentsDisplay Description FunctionCSQ Carrier Squelch RX: unsquelch if carrier detectedTX: mic audioTPL Tone Private-Line RX: unsquelch if carrier and tone (192.8 Hz) detectedTX: mic audio + tone (192.8 Hz)AST ASTRO RX: noneTX: 1200Hz tone *
9Control Top and Keypad Test ModeTo check the display, buttons, and switches, perform the following tests:1. Turn the radio on and adjust the volume for a comfortable listening level. The volume level remains constant once in the test mode.2. Within 10 seconds after the “ ” is complete, press Side Button 3 five times in succession.3. After “ ” appears on the display, press Side Button 1 once, “” appears on the display.4. Next, press and hold the Top Programmable Button; all segments on the display will light, and the LED on the control top will illuminate a red color.5. Release the Top Programmable Button; “ ” appears, which indicates that the Top Programmable Button is in the open condition.6. Press the Top Programmable Button again; “ ” appears, which indicates that the Top Programmable Button is in the closed condition.7. Rotate the Mode/Zone Selector Switch; “ ” through “ ” appears, which indicates that the selector switch is in mode/zone position 1 through 15.8. Rotate the Two-Position (A/B) Switch; “ ” and “ ” appear.9. Rotate the Three-Position Programmable Switch; “ ,” “,” and “ ” appear.10.Rotate the Volume Control; “ ” through “ ” appear.11.Press Side Button 1; “ ” appears; release, “ ” appears.12.Press Side Button 2; “ ”appears; release, “ ” appears.13.Press Side Button 3; “ ”appears; release, “ ” appears.14.Press the PTT Switch; “ ” appears; release, “ ” appears.15.Keypad Checks:-Press 0, “ ” appears; release, “ ” appears.-Press 1, “ ” appears; release, “ ” appears.-Press 2, “ ” appears; release, “ ” appears.-Press 3, “ ” appears; release, “ ” appears.-Press 4, “ ” appears; release, “ ” appears.-Press 5, “ ” appears; release, “ ” appears.-Press 6, “ ” appears; release, “ ” appears.-Press 7, “ ” appears; release, “ ” appears.-Press 8, “ ” appears; release, “ ” appears.-Press 9, “ ” appears; release, “ ” appears.-Press *, “ ” appears; release, “ ” appears.-Press #, “ ” appears; release, “ ” appears.-Press <, “ ” appears; release, “ ” appears.-Press O, “ ” appears; release, “ ” appears.-Press >, “ ” appears; release, “ ” appears.
10-Press the left-hand M key on the top row of keys, “ ” appears; release, “ ” appears.-Press the center N key, “ ” appears; release, “ ” appears.-Press the right-hand M key, “ ” appears; release, “ ” appears.Table 7 Receiver Performance ChecksTest Name System Analyzer Radio Test Set CommentsReference Frequency Mode: PWR MON 4th channel test frequency❖Monitor: Frequency error. Input at RF In/OutTEST MODE, 4 CSQ output at antennaPTT to continuous (during the performance check)Frequency error to be ≤ ±1.2kHzRated Audio Mode: GEN Output level: 1.0mV RF 4th channel test frequency❖Mod: 1kHz tone at 3kHz deviationMonitor: DVM: ac VoltsTEST MODE, 4 CSQ PTT to OFF (center); meter selector to Audio PASet volume control to 3.74VrmsDistortion As above, except to distortion As above As above Distortion < 3.0%Sensitivity (SINAD) As above, except SINAD; lower the RF level for 12dB SINADAs above PTT to OFF (center) RF input to be < 0.35µVNoise Squelch Threshold (only radios with conventional system need to be tested)RF level set to 1mV RF As above PTT to OFF (center); meter selection to Audio PA; spkr/load to speakerSet volume control to 3.74VrmsAs above, except change frequency to a conventional system. Raise RF level from zero until radio unsquelches.Out of TEST MODE; select a conventional systemAs above Unsquelch to occur at < 0.25µV. Preferred SINAD = 8-10dB❖ See Table 6
11Table 8 Transmitter Performance ChecksTest Name System Analyzer Radio Test Set CommentsReference Frequency Mode: PWR MON 4th channel test frequency❖Monitor: Frequency error. Input at RF In/OutTEST MODE, 4 CSQ PTT to continuous (during the performance check).Frequency error to be ≤ ±1.2kHz.Power RF As above As above, 4 CSQ As above Refer to Maintenance Specifications page in front of manual.Voice Modulation Mode: PWR MON 4th channel test frequency❖ atten to –70, input to RF In/Out. Monitor: DVM, ac Volts. Set 1kHz Mod Out level for 0.025Vrms at test set, 80mVrms at ac/dc test set jackAs above, 4 CSQ As above, meter selector to mic Deviation: 800MHz: ≥ 3.6kHz but ≤ 5.0kHzVoice Modulation (internal)Mode: PWR MON 4th channel test frequency❖ atten to –70, input to RF In/OutTEST MODE, 4 CSQ, output at antennaRemove modulation input Press PTT switch on radio. Say “four” loudly into the radio mic. Measure deviation: 800MHz: ≥ 3.8kHz but ≤ 5.0kHzPL Modu-lation (radios with conven-tional, clear mode, coded squelch oper-ation only)Change frequency to a conventional transmit frequency; BW to narrowConventionalcoded squelch personality (clear mode operation) 4 TPLAs above Deviation: 800MHz: ≥ 500Hz but ≤ 1000HzTalkaround Modulation (radios with conventional, clear mode, talk-around operation only)Change frequency to conventional talk-around frequency. Mode: PWR MON deviation, attenuation to –70, input to RF In/Out. Monitor: DVM, ac volts Set 1kHz Mod Out level for 25mVrms at test set.Conventionaltalkaround personality (clear mode operation) 1 CSQAs above Deviation: 800MHz: ≥ 3.8kHz but ≤ 5.0kHzTalkaround Modulation (radios with conventional,secure mode, talkaround operation only) (**)Change frequency to conventional talk-around frequency. Mode: PWR MON deviation, attenuation to –70, input to RF In/Out.Monitor: DVM, ac voltsMod: 1kHz out level for25mVrms at test set.Conventionaltalkaround personality (secure mode operation). Load key into radio 1 sec.As above Deviation: 800MHz: ≥ 3.6kHz but ≤ 4.4kHz* 800MHz radios only** The secure mode, talkaround modulation test is only required for trac mode radios which do not have clear modetalkaround capability.❖See Table 6
12Notes
13Radio Alignment Procedures 5Introduction to This Section This section describes both receiver and transmitter radio alignment procedures.General An IBM 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. To perform the alignment procedures, the radio must be connected to the PC, radio interface box (RIB), and a universal test set as shown in Figure 1.Figure 1 Radio Alignment Test SetupAll service and tuning procedures are performed from the SERVICE menu, which is selected by pressing B from the MAIN MENU. Figure 2 illustrates how the RSS alignment SERVICE screens are organized.BNCRIBRLN-4008BRIB POWER SUPPLY01-80357A57 (120V)COMPUTER INTERFACECABLE30-80369B7130-80369B72 (IBM "AT" ONLY)DATABUSYGND COMPUTERAUDIO GENERATORSINAD METERAC VOLTMETERTXRX30 dB PAD30 dB PADRF GENERATORSYSTEM ANALYZEROR COUNTERWATTMETERBATTERYELIMINATORRTL-4224ATRANSMITRECEIVETEST SETRTX-4005BRADIOPROGRAM/TEST CABLERKN-4046AAUDIO INSET TO APPROX. 450mV FOR TxMEASURE 80mV FOR TxSMA-BNC58-80348B33REX-4424RKN-4035D RIBRLN-4008BRLN-1015A orTEST SETRLN-4460A orRTX-4005B
14Figure 2 RSS Service Menu LayoutAll SERVICE screens read and program the radio codeplug directly; you do NOT have to use the RSS GET/SAVE functions to use the SERVICE menus.The SERVICE screens introduce the concept of the “softpot,” an analog SOFTware-controlled POTentiometer used for adjusting all transceiver alignment controls.Each SERVICE screen provides the capability to increase or decrease the ‘softpot’ value with the keyboard UP/DOWN arrow keys respectively. A graphical scale is displayed indicating the minimum, maximum, and proposed value of the softpot, as shown in Figure 3.Figure 3 Softpot ConceptREFERENCE OSCILLATOR ALIGNMENTTRANSMIT POWER ALIGNMENTTRANSMITTER ALIGNMENT MENUTRANSMIT DEVIATION BALANCE (COMPENSATION) ALIGNMENTTRANSMIT DEVIATION LIMIT ALIGNMENTF2 -F2 -F3 -F4 -F5 -RECEIVER ALIGNMENT MENUF3 -FRONT END BANDPASS FILTER ALIGNMENTF2 -SERVICEHELPF1 -EXIT, RETURN TO SERVICE MENUF10 -BABCDECBJDo NOT switch radios in the middle of any SERVICE procedure. Always use the EXIT key to return to the MAIN menu screen before disconnecting the radio. Improper exits from the SERVICE screens may leave the radio in an improperly configured state and result in seriously degraded radio or system performance.!C a u t i o nMin.Value Max.Value015
15Adjusting the softpot value sends information to the radio to increase (or decrease) a dc voltage in the corresponding circuit. For example, pressing the UP arrow key at the Reference Oscillator screen instructs the radio’s microcomputer to increase the voltage across a varactor in the reference oscillator, which increases the frequency.In ALL cases, the softpot value is just a relative number corresponding to a digital-to-analog (D/A) generated voltage in the radio.Perform the following procedures in the sequence indicated.NOTE: Some of the following screens mayvary depending upon the radio undertest and the version of radio servicesoftware you are using. Refer to yourradio service software user’s guide.Reference Oscillator AlignmentAdjustment of the reference oscillator is critical for proper radio operation. Improper adjustment will result not only in poor operation, but also in a misaligned radio that will interfere with other users operating on adjacent channels. For this reason, the reference oscillator should be checked every time the radio is serviced. The frequency counter used for this procedure must have a stability of 0.1 ppm (or better).1. From the SERVICE MENU, press B to select the TRANSMITTER ALIGNMENT MENU.2. Press B again to select the REFERENCE OSCILLATOR alignment screen. See Figure 4.Figure 4 Reference Oscillator Alignment Screen3. Press P (or Z or [RETURN]) to select a frequency field (starting with the highest frequency shown). Then, press F to key the radio. The screen will indicate that the radio is transmitting.MOTOROLA Radio Service Software Use UP/DOWN Arrows To Adjust Softpot. ASTRO Model: H09UCH9PW7AN MAIN:SERVICE:TX ALIGN:REF OSC REFERENCE OSCILLATOR -------------------- Frequency Current Value --------- ------------- 869.9875 150 New Softpot Value.....150 Transmitter..On 0 255 MIN |----+----+----+----+----+----+----+----+----+----+----+----| MAX F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 HELP TOGGLE PROGRAM EXIT PTT VALUE
164. Measure the transmit frequency on your service monitor.5. Use the É/Ç arrow keys to adjust the reference oscillator softpot value. See Table 9.6. Press F again to dekey the radio.7. Press H to program the new softpot value.8. Press J once to return to the TRANSMITTER ALIGNMENT MENU, or press J twice to return to the SERVICE MENU.Transmit Power AlignmentNOTES:•All power measurements are to be made at the antenna port.•The transmitter power setting keeps the radiated power at or below the level specified in the exclusionary clause for low power devices of IEEE Standard C95.1-1991.1. From the SERVICE MENU, press B to select the TRANSMITTER ALIGNMENT MENU.2. Press C to select the TRANSMIT POWER alignment screen. The screen will indicate the transmit frequencies to be used. See Figure 5.Figure 5 Transmit Power Alignment Screen3. Press P (or Z or [RETURN]) to select a frequency field (starting with the highest frequency shown). Then, press F to key the radio. The screen will indicate that the radio is transmitting.4. Use the É/Ç arrow keys to adjust the transmit power per the values shown in Table 10.Table 9 Reference Oscillator AlignmentBand Target800 MHz ±150 HzMOTOROLA Radio Service Software Use UP/DOWN Arrows To Adjust Softpot. ASTRO Model: H09UCH9PW7AN MAIN:SERVICE:TX ALIGN:TX POWER TRANSMIT POWER -------------- Current Value New Softpot Value Frequency High Pwr Low Pwr High Pwr Low Pwr --------- -------- ------- -------- ------- 806.00000 35 35 10 23 815.00000 42 42 11 28 824.00000 50 50 20 33 851.00000 60 60 33 40 860.00000 70 70 43 45 869.00000 80 80 58 58 Transmitter..On 0 127 MIN |---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---| MAX F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 HELP TOGGLE PROGRAM EXIT PTT VALUE
175. Press F to dekey the radio.6. Press H to program the value.7. Repeat steps 3-6 for the remaining frequencies.8. Press J once to return to the TRANSMITTER ALIGNMENT MENU, or press J twice to return to the SERVICE MENU.Transmit Deviation Balance (Compensation) AlignmentCompensation alignment balances the modulation sensitivity of the VCO and reference modulation (synthesizer low-frequency port) lines. The compensation algorithm is critical to the operation of signalling schemes that have very-low-frequency components (for example, DPL) and could result in distorted waveforms if improperly adjusted. 1. From the SERVICE MENU, press B to select the TRANSMITTER ALIGNMENT MENU.2. Press D to select the TRANSMIT DEVIATION BALANCE (COMPENSATION) alignment screen. The screen will indicate the transmit frequencies to be used. See Figure 6.Figure 6 Transmit Deviation Balance (Compensation) Alignment Screen3. Press P (or Z or [RETURN]) to select a frequency field (starting with the lowest frequency shown).4. Press D. This will cause the radio to key and the radio’s DSP IC to inject an 80Hz tone into the RF board.5. Measure the deviation and record this value.6. Press D to dekey the radio.Table 10 Transmit Power Setting800MHz Power Level All Test Frequencies3 Watts 3.2 - 3.4MOTOROLA Radio Service Software Use UP/DOWN Arrows To Adjust Softpot. ASTRO Model: H09UCH9PW7AN MAIN:SERVICE:TX ALIGN:BAL ATTN TRANSMIT DEVIATION BALANCE (COMPENSATION) ----------------------------------------- Current Frequency Value New Softpot Value --------- ------- ----------------- 806.000 30 30 815.000 30 30 824.000 30 30 851.000 45 45 860.000 45 45 869.000 45 45 Transmitter..Off 0 63 MIN |---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---| MAX F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 HELP TOGGLE LOW TOGGLE HIGH PROGRAM EXIT TONE PTT TONE PTT VALUE
187. Press F. This will cause the radio’s DSP IC to change the injection tone to 3kHz, 100mVrms. Use the É/Ç arrow keys to adjust the deviation to within ±2% of the value recorded in step 5.8. Repeat steps 4-7 until the 3kHz tone deviation is within ±2% of the 80Hz tone deviation.9. Press F again to dekey the radio.10.Press H to program the new softpot value.11.Repeat steps 3-10 for the remaining frequencies.12.Press J once to return to the TRANSMITTER ALIGNMENT MENU, or press J twice to return to the SERVICE MENU.Transmit Deviation Limit AlignmentIMPORTANT NOTE:Put the radio in the RF test mode and scroll tothe ASTRO test environment, indicated by“AST” on the display (refer to the“Performance Checks” section for details). Allother deviation values are derived from theASTRO test environment mode transmitdeviation limit.1. From the SERVICE MENU, press B to select the TRANSMITTER ALIGNMENT MENU.2. Press E to select the TRANSMIT DEVIATION LIMIT alignment screen. The screen will indicate the transmit frequencies to be used. See Figure 7.Figure 7 Transmit Deviation Limit Alignment Screen3. Press P (or Z or [RETURN]) to select a frequency field (starting with the lowest frequency shown).4. Press F to key the radio. Then use the É/Ç arrow keys to adjust for a deviation per the values shown in Table 11.MOTOROLA Radio Service Software Use UP/DOWN Arrows To Adjust Softpot. ASTRO Model: H09UCH9PW7AN MAIN:SERVICE:TX ALIGN:VCO ATTN TRANSMIT DEVIATION LIMIT ------------------------ Current Frequency Value New Softpot Value --------- ------- ----------------- 806.000 175 175 815.000 175 175 824.000 180 180 851.000 180 180 860.000 180 180 869.000 180 180 Transmitter..Off 0 255 MIN |----+----+----+----+----+----+----+----+X---+----+----+----| MAX F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 HELP TOGGLE PROGRAM EXIT PTT VALUE
195. Press F again to dekey the radio.6. Press H to program the softpot value.7. Repeat steps 3-6 for the remaining frequencies.8. Press J once to return to the TRANSMITTER ALIGNMENT MENU, or press J twice to return to the SERVICE MENU.Table 11 Transmit Deviation LimitBand Deviation (Hz)800 MHz 2785 - 2885
20Notes
21Basic Removal/Installation Procedures 6Introduction to This Section This section gives basic procedures for removing and installing the XTS 3000 radio’s:•Antenna,•Battery,•Belt Clip,•Universal Connector Cover,•Volume Knob, and•Frequency Knob.AntennaInstalling the Antenna Screw the threaded end of the antenna into the antenna receptacle on the top of the radio. Rotate the antenna clockwise until it seats firmly against the bushing. Removing the Antenna Rotate the antenna counterclockwise until its threaded end unscrews from the radio’s antenna receptacle.Battery NOTE: The battery is shipped uncharged, and must becharged before use. To avoid a possible explosion:• DO NOT replace the battery in an area labeled “hazardous atmosphere.”• DO NOT discard batteries in a fire.!W A R N I N G!If your radio is programmed with volatile-key retention (consult your service technician), encryption keys will be retained for approximately 30 seconds after battery removal.!C a u t i o n
22Installing the Battery 1. Turn off the radio and hold it with the back of the radio facing upward2. 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.3. Rotate the battery toward the radio, and squeeze the battery and radio together until the battery “clicks” in place.Removing the Battery 1. Turn off the radio and hold it so that the release button on the bottom of the battery is facing upward.2. Press downward on the release button so the battery disengages from the radio.3. Remove the battery completely away from the radioBelt Clip NOTE: The battery must be removed from the radio before the belt clip can be installed or removed.Installing the Belt Clip 1. Hold the battery in one hand so that the top of the battery faces upward, and the back of the battery faces you.2. Holding the belt clip in the other hand with its top facing upward, align the slide assembly on the front of the belt clip with the slots on the back of the battery.3. Slide the belt clip downward toward the bottom of the battery until the belt clip “clicks” in place.Removing the Belt Clip 1. Hold the battery (with belt clip installed) in one hand so that the top of the battery faces upward, and the front (radio side) of the battery faces you.2. At the top of the battery, press down on the belt clip’s metal tab and slide the belt clip upward until it disengages from the battery.3. Continue to slide the belt clip upward until it is free from the battery.Slide AssemblySlotsBelt ClipBatteryMetalTabPressDown
23Universal Connector CoverInstalling the Universal Connector Cover1. Looking at the antenna side of the radio, insert the top (flat) hooked end of the cover into the slot on the top of the radio, above the universal connector. Press downward on the cover’s top to seat it in the slot.2. While holding the cover seated in the top slot, insert the cover’s bottom (rounded) hooked end into the slot below the universal connector. Press firmly inward on the cover’s bottom until it snaps in place. Removing the Universal Connector Cover1. Looking at the antenna side of the radio, insert a flat-bladed screwdriver into the area between the lower end of the universal connector cover and the slot below the universal connector.2. Pry upward on the cover’s lower end until it disengages from the radio.Frequency Knob NOTES:•Refer to Figure 8, the Partial Exploded View, and Table 12, the Partial Exploded View Parts List. Numbers in parentheses ( ) refer to item numbers in Figure 8 and Table 12.•The battery (7) should be removed from the radio before installing or removing the frequency knob (1).Removing the Frequency Knob 1. Hold the radio in one hand so that the top of the radio faces upward, and the front of the radio faces you.2. With the other hand, grasp the frequency knob (1) and pull it upward, while pushing it toward the back of the radio, until it is free from the frequency insert (3).3. While pressing the insert’s (3) two snap tabs away from the frequency control shaft so that the insert disengages from the shaft, use needle-nosed pliers to lift the insert up and off of the frequency control shaft.4. Remove the secure lever (4) and the lightpipe (5).Installing the Frequency Knob 1. Hold the radio so that the top of the radio faces upward, and the front of the radio faces you.When the universal connector is not in use, keep it covered with the universal connector cover.!C a u t i o nTopSlotBottomSlotTopHooked EndBottomHooked End
242. Align the lightpipe (5) so that its straight tab is over the slot for the illuminated pointer. Push the tab down into the slot so that it is securely seated.3. Place the secure lever (4) on the frequency control shaft, aligning it so that its pointer is at the front of the radio and its two inner slots line up with the two keys on the shaft. Slide the secure lever down to the bottom of the shaft.4. If you are replacing the escutcheon (2), remove the backing paper from the escutcheon, align its alignment marker with the alignment notch (between numbers 4 and 5) on the insert, and adhere it to the insert.5. Place the frequency insert (3) and escutcheon (2) on the frequency control shaft, aligning the insert’s D-shaped hole with the D-shaped shaft. Press downward firmly on the insert until it “snaps” in place on the shaft.6. Place the frequency knob (1) on the frequency insert (3), aligning it’s pointer with the number “1” on the escutcheon (2). Press firmly downward on the knob until it seats securely in place.Volume Knob NOTES:•Refer to Figure 8, the Partial Exploded View, and Table 12, the Partial Exploded View Parts List. Numbers in parentheses ( ) refer to item numbers in Figure 8 and Table 12.•The battery (7) should be removed from the radio before installing or removing the volume knob (8).Removing the Volume Knob 1. Hold the radio in one hand so that the top of the radio faces upward, and the front of the radio faces you.2. With the other hand, grasp the volume knob (8) and pull it upward, while pushing it toward the back of the radio, until it is free from the volume insert (9).3. While pressing the volume insert’s (9) two snap tabs away from the volume control shaft so that the insert disengages from the shaft, use needle-nosed pliers to pull the insert up and off of the volume control shaft.4. Using needle-nosed pliers or some other pointed instrument, remove the o-ring (21).Installing the Volume Knob 1. Place the o-ring (21) inside the volume insert (9), and press it downward until it seats securely at the bottom of the insert.2. Hold the radio so that the top of the radio faces upward, and the front of the radio faces you.3. Place the volume insert (9) on the volume control shaft, aligning its D-shaped hole with the D-shaped shaft. Press downward firmly on the insert until it “snaps” in place on the shaft. 4. Place the volume knob (8) on the volume insert (9), aligning the two lugs on the inside of the knob with the insert’s two snap tabs. Press firmly downward on the knob until it seats securely in place.
25Figure 8 Partial Exploded View1234567809ABCDEFGHIJKLMNOPRSTUVWXYHOMEXTS 30001234517182016158910112114131276ABCAlignment NotchAlignment Marker
26Table 12 Partial Exploded View Parts ListITEM NO. MOTOROLA PART NO. DESCRIPTION1 3605370Z01 KNOB, Frequency2 1305374Z01 ESCUTCHEON, Frequency3 4305373Z01 INSERT RETAINER, Frequency Knob4 4305375Z01 LEVER, Secure Frequency5 6105376Z01 LIGHTPIPE INDICATOR/STOP, Frequency6 NTN8266A CLIP, Belt7 NTN8298A Battery, NiCd8 3605371Z01 KNOB, Volume9 4305372Z01 INSERT RETAINER, Volume Knob10 3305574Z01 LABEL, Motorola, Back11 - - - - - - - - - - LABEL, Flashport12 - - - - - - - - - - LABEL, Radio Serial Number13 - - - - - - - - - - LABEL, Approval Agency14 3305630Z02 LABEL, Bottom15 NAF5037Aor NAF5039Aor NAF5042AANTENNA, 800MHz Whip (806-870 MHz)ANTENNA, 800MHz Dipole (806-870 MHz)ANTENNA, 800MHz Stubby Quarterwave (806-870 MHz)16 - - - - - - - - - - ESCUTCHEON, Concentric Switch (optional)17 - - - - - - - - - - ESCUTCHEON, Toggle (optional)18 1505579Z01 COVER, Dust, Universal Connector19 3305573Z01 LABEL, Motorola, Front20 3505586Z01 Gortex21 3205379W01 O-Ring
27Basic Theory of Operation 7General Overview The ASTRO Digital XTS 3000 radio is a wideband, synthesized, fixed-tuned radio available in the 800MHz band. All ASTRO Digital XTS 3000 radios are capable of both analog operation and ASTRO mode (digital) operation in 12.5kHz or 25kHz bandwidths.The ASTRO Digital XTS 3000 radio includes the following major assemblies:•Controller Board - contains the microcontrol unit (MCU) and its associated memory and memory management integrated circuit (IC), the audio power amplifier, and a switching regulator. •RF Board - contains all transmit, receive, and frequency generation circuitry including the digital receiver back-end IC and the reference oscillator.•Vocoder Board - contains the digital signal processor (DSP) and its support IC and associated memories.•Controls/Universal Flex - contains volume/on/off switch, frequency selector switch, push-to-talk (PTT) switch, monitor button, several function-selectable switches, universal connector, speaker, and microphone.•Display (Full-Featured Model Only) - a four-line, 12-character liquid crystal display (LCD).•Keypad (Full-Featured Model Only) - a 3 x 6 keypad.Analog Mode of Operation When the radio is receiving, the signal comes from the antenna connector to the RF board, passes through the RX/TX switch and the receiver front end. The signal is then filtered, amplified, and mixed with the first local-oscillator signal generated by the voltage-controlled oscillator (VCO). The resulting intermediate frequency (IF) signal is fed to the IF circuitry, where it is again filtered and amplified. This amplified signal is passed to the digital back-end IC, where it is mixed with the second local oscillator to create the second IF at 450kHz. It is then converted to a digital bit stream and mixed a third time to produce a baseband signal. This signal is passed to the vocoder board through a current-driven differential output. On the vocoder board, the digital- signal-processor-support IC digitally filters and discriminates the signal, and passes it to the digital-signal processor (DSP). The DSP decodes the information in the signal and identifies the appropriate destination for it. For a voice signal, the DSP will route the digital voice data to the DSP-support IC for conversion to an analog signal. The DSP-support IC will then present the signal to the audio power amplifier, which drives the speaker. For signalling information, the DSP will decode the message and pass it to the microcontrol unit.
28When the radio is transmitting, microphone audio is passed from the audio power amplifier (PA) to the DSP-support IC, where the signal is digitized. The DSP-support IC passes digital data to the DSP, where pre-emphasis and low-pass (splatter) filtering are done. The DSP returns this signal to the DSP-support IC, where it is reconverted into an analog signal and scaled for application to the voltage-controlled oscillator as a modulation signal. Transmitted signalling information is accepted by the DSP from the microcontrol unit, coded appropriately, and passed to the DSP-support IC, which handles it the same as a voice signal. Modulation information is passed to the synthesizer along the modulation line. A modulated carrier is provided to the RF PA, which transmits the signal under dynamic power control.ASTRO Mode of Operation In the ASTRO mode (digital mode) of operation, the transmitted or received signal is limited to a discrete set of deviation levels, instead of continuously varying. The receiver handles an ASTRO-mode signal identically to an analog-mode signal up to the point where the DSP decodes the received data. In the ASTRO receive mode, the DSP uses a specifically defined algorithm to recover information. In the ASTRO transmit mode, microphone audio is processed identically to an analog mode with the exception of the algorithm the DSP uses to encode the information. This algorithm will result in deviation levels that are limited to discrete levels.RF Board Basic Theory of OperationThe receiver front end consists of a preselector, an RF amplifier, a second preselector, and a mixer. On the 800MHz receiver front end, both preselectors are varactor-tuned, two-pole, fixed-tuned filters. The RF amplifier is a dual-gate, gallium- arsenide based IC. The mixer is a double-balanced, active mixer coupled by transformers. Injection is provided by the VCO through an injection filter. See Table 13 for local oscillator (LO) and first IF information.The frequency generation function is performed by three ICs and associated circuitry. The reference oscillator provides a frequency standard to the synthesizer/prescaler IC, which controls the VCO IC. The VCO IC actually generates the first LO and transmit-injection signals and buffers them to the required power level. The synthesizer/prescaler circuit module incorporates frequency-division and comparison circuitry to keep the VCO signals stable. The synthesizer/prescaler IC is controlled by the microcontrol unit through a serial bus. Most of the synthesizer circuitry is enclosed in rigid metal cans on the RF board to reduce microphonic effects. 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 5kHz modulation. Final IF filtering is done digitally in the DSP-support IC.Table 13 Local Oscillator and First IF Frequencies800MHzLO Frequency Range 732.65-796.65MHzFirst IF Frequency 73.35MHz
29The 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 vocoder board. The second LO is generated by discrete components external to the IC. The output of the digital back-end IC is a digital bit stream that is current driven on a differential pair for a reduction in noise generation.The transmitter consists of an RF PA IC that gets an injection signal from the VCO. Transmit power is controlled by two custom ICs that monitor the output of a directional coupler and adjust PA control voltages correspondingly. The signal passes through a RX/TX switch that uses PIN diodes to automatically provide an appropriate interface to transmit or receive signals. Antenna selection is done mechanically in the control top.Controller Board Basic Theory of OperationThe controller board contains the radio’s microcontrol unit with its memory and support circuits, voltage regulators, audio, and power control circuits. Connected to the controller board are the display board, RF board, vocoder board, keypad board, controls/universal flex, and (optional) encryption module.The microcontrol unit controls receive/transmit frequencies, power levels, display, and other radio functions, using either direct logic control or serial communications paths to the devices.The microcontrol unit executes a stored program located in the FLASH ROM. Data is transferred to and from memory by the microcontrol unit data bus. The memory location from which data is read, or to which data is written, is selected by the address lines.The support-logic IC acts as an extension of the microcontrol unit by providing logic functions such as lower address latch, reset, memory address decoding, and additional control lines for the radio. The microcontrol unit controls the crystal-pull circuit to adjust the crystal oscillator’s frequency on the microcontrol unit, so that the E-clock’ s harmonics do not cause interference with the radio’s receive channel.The regulator and power-control circuits include an unswitched +5V discrete circuit and the regulator/power-control IC. Switched +5V is used for all circuits on the controller board except the audio PA, which is sourced from 7.5V. The regulator automatically provides 5V when the radio is turned on. The regulator’s power-down mode is controlled by the microcontrol unit, which senses the position of the on/off switch.Vocoder Board Basic Theory of OperationThe vocoder board contains the digital-signal processor (DSP), its memory devices, and the DSP-support IC.The DSP performs signalling and voice encoding and decoding as well as audio filtering and volume control. This IC performs Private-Line®/Digital Private Line™ (PL/DPL) encode and alert-tone generation. The IC transmits pre-emphasis on analog signals and applies a low-pass (splatter) filter to all transmitted signals. It requires a 33MHz crystal to function. An 8kHz interrupt signal generated by the DSP-support IC is
30also required for functionality. It is programmed using parallel programming from the microcontrol unit and the DSP-support IC.The DSP-support IC performs analog-to-digital and digital-to-analog conversions on audio signals. It contains attenuators for volume, squelch, deviation, and compensation, and it executes receiver filtering and discrimination. The IC requires a 2.4MHz clock to function (generated by the digital back-end IC) and is programmed by the microcontrol unit SPI bus.
31Radio-Level Troubleshooting 8Introduction to This Section This section of the manual contains troubleshooting charts and error codes that will help you to isolate a problem. Level one troubleshooting will support only radio alignment, programming, battery replacement, and knob replacement. 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 3000 Portable Radios Detailed Service Manual,” Motorola publication number 68P81083C90.Power-Up Error Codes 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. Problems detected during these tests are presented as error codes on the radio’s display. The presence of an error should prompt the user that a problem exists and that a service technician should be contacted.Self-test errors are classified as either fatal or non-fatal. Fatal errors will inhibit user operation; non-fatal errors will not. Use Table 14 to aid in understanding particular power-up error code displays.Table 14 Power-Up Error Code DisplaysErrorCode Description Corrective Action01/02 External EEPROM Checksum Non-Fatal Error Reprogram codeplug.01/81 ROM Checksum Failure Send radio to depot.01/82 External EEPROM Checksum Failure Reprogram the codeplug.01/84 SLIC Initialization Failure Turn the radio off, then on.01/88 RAM Failure - Note: not a checksum failure Turn the radio off, then on.01/90 General Hardware Failure Turn the radio off, then on.01/92 Internal EEPROM Checksum Failure Reprogram the codeplug.02/10 DSP support IC checksum Non-Fatal Error Turn the radio off, then on.02/81 DSP ROM Checksum Failure Send radio to depot.02/88 DSP RAM Failure - Note: not a checksum failure Turn the radio off, then on.02/90 General DSP Hardware Failure (DSP startup message not received correctly) Turn the radio off, then on.02/A0 ADSIC Checksum Failure - Non-Fatal Error Turn the radio off, then on.09/10 Secure Hardware Failure Send radio to depot.09/90 Secure Hardware Failure Send radio to depot.Note: If the corrective action does not fix the failure, send the radio to the depot.
32Operational Error Codes During radio operation, the radio performs dynamic tests to determine if the radio is working properly. Problems detected during these tests 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. Use Table 15 to aid in understanding particular operational error codes.Table 15 Operational Error Code DisplaysError Code Description Corrective ActionFAIL 001 Synthesizer Out-of-Lock a. Reprogram codeplugb. Send radio to depotFAIL 002 Selected Mode/Zone Codeplug Checksum Error Reprogram codeplugTable 16 Receiver Troubleshooting ChartSymptom Possible Cause Correction or Test (Measurements Taken at Room Temperature)Radio Dead; Display Does Not Light Up 1. Dead Battery Replace with charged battery.2. Blown Fuse Send radio to depot. 3. On/Off Switch4. RegulatorsRadio Dead; Display Lights Up 1. Controller Board Send radio to depot.2. RF BoardNo Receiver Audio or Receiver Does Not Unmute Programming a. Does the transmitted signal match the receiver configuration (PL, DPL, etc.)?b. With the monitor function enabled, can the radio be unmuted?Audio Distorted or Not Loud Enough Synthesizer Not On Frequency Check synthesizer frequency by measuring the transmitter frequency; if off by more than ±250Hz, realign.RF Sensitivity Poor 1. Synthesizer Not On Frequency Check synthesizer frequency by measuring the transmitter frequency; if off by more than ≤ ±600Hz, realign.2. Antenna Switch Send radio to depot.3. Receiver Front- End Tuning (VHF/ UHF only)Check RF front-end tuning for optimum sensitivity using the RSS.Radio Will Not Turn Off Controller Board Send radio to depot.
33Table 17 Transmitter Troubleshooting ChartSymptom Possible Cause Correction or Test (Measurements 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.3. No Injection To Power AmplifierNo Modulation; Distorted Modulation 1. Programming Check deviation and compensation settings using the RSS.2. Controller Board Send radio to depot. Bad Microphone Sensitivity 1. Check Deviation and Compensation Realign if necessary.2. Microphone Send radio to depot.No/Low Signalling (PL, DPL, MDC) 1. Programming Check Programming2. Controller Board Send radio to depot.Can’t Set Compensation RF Board Send radio to depot. Table 18 Encryption Troubleshooting ChartSymptom Possible Cause Corrective ActionNo “ ” on Radio Display When Keyloading Cable is Attached to the Radio Side Connector 1. Defective Keyload Cable Send radio to depot.2. Defective RadioKeyloader Displays “ .” 1. Wrong Keyloader Make Sure the Keyloader is a “T----CX” or “T----DX” Keyloader.2. Bad Keyloader Try Another Keyloader3. Defective Radio Send radio to depot.Note: Keyloaders “T----AX” and “T----BX” must be upgraded to “T----CX” and “T----DX” in order to keyload an XTS 3000 radio.
34Notes
CompleteIncompleteCorrectIncorrectClearConfusingSizeAdequateSizeToo SmallNot Coveredin This ManualPerformanceChecksRadio AlignmentProceduresDisassembly/ReassemblyProceduresBasic Theory of OperationBoard-LevelTroubleshootingSchematic DiagramsExploded ViewParts ListIn reference to Manual Number: 68P81083C85-OTM Digital XTS 3000TM Portable Radios1. Please check all theappropriate boxes:(over)✁BASIC SERVICE MANUAL QUESTIONNAIREWe believe that reports from users provide valuable information for producing quality manuals. By takinga few moments to answer the following questions as they relate to this specific manual, you can take anactive role in the continuing effort to ensure that our manuals contain the most accurate and completeinformation of benefit to you. Thank you for your cooperation.CUT ALONG DOTTED LINE2. How would you rate the overall organization of this manual?excellent very good good fair poor3. Did this service manual provide you with the information necessary to service and maintain thespecific equipment?very much so generally yes to some extent no4. How do you rate this particular service manual?excellent very good good fair poor5. We would appreciate any corrections or recommendations for improving this manual. Please includethe specific page number(s) of the diagram or procedure in question.a. Performance Checks: (Page No. __________)b. Radio Alignment Procedures: (Page No. __________)c. Disassembly/Reassembly Procedures: (Page No. __________)d. Basic Theory of Operation: (Page No. __________)
FOLD FOLDPlease specify the page number along with any corrections or recommendations for improvement.6. General comments/suggestions:(Continued)Name:Company:Customer COSC MSS FTR OtherAddress:City/State/Zip:Phone Number (Please include Area Code):PLEASE USE TAPE TO SEALPOSTAL REGULATIONS PROHIBIT USE OF STAPLES......................................................................❒❒❒ ❒❒NO POSTAGENECESSARYIF MAILEDIN THEUNITED STATESBUSINESS REPLY MAILFIRST CLASS MAIL PERMIT NO 9040 FT. LAUDERDALE, FLPOSTAGE WILL BE PAID BY ADDRESSEEAttention: Technical Communications8000 W. Sunrise BoulevardFt. Lauderdale, FL 33322
REPLACEMENT PARTS ORDERINGWhen ordering replacement parts or equipmentinformation, the complete identification numbershould be included. This applies to allcomponents, kits, and chassis. If the componentpart number is not known, the order should includethe number of the chassis or kit of which it is apart, and sufficient description of the desiredcomponent to identify it.Crystal and channel element orders shouldspecify the crystal or channel element type number,Americas Parts Division: Call: 1-800-422-4210 Parts Identification:Call: 708-538-0021Customer Response Center(Sales and Service Assistance):Call: 1-800-247-2346FAX: 1-800-232-9272crystal and carrier frequency, and the modelnumber in which the part is used.Orders for active filters, Vibrasender andVibrasponder resonant reeds should specify typenumber and frequency, should identify theowner/operator of the communications system inwhich these items are to be used, and shouldinclude any serial numbers stamped on thecomponents being replaced.Americas Parts Division: Field Assist Service TrainingCall: 1-800-422-4210 (FAST VHS Video Tapes):1-800-826-1913 (For Federal Government Orders) Call: 708-576-80121-708-538-8023 (International Orders)Americas Parts Division: Federal Government Orders:FAX: 708-538-8198 (Domestic) FAX: 410-712-4991708-576-3023 (International)Parts ID: 708-538-8194Telex: 280127 (Domestic)403305 (International)Send written orders to the following addresses:Federal Government Orders:Motorola Inc.Americas Parts DivisionAttention: Order Processing7230 Parkway DriveLandover, MD 21076International Orders:Motorola Inc.Americas Parts DivisionAttention: International Order Processing1313 E. Algonquin RoadSchaumburg, IL 60196Replacement Parts/Test Equipment/ManualsCrystal Service Items:Motorola Inc.Americas Parts DivisionAttention: Order Processing1313 E. Algonquin RoadSchaumburg, IL 60196ORDERING INFORMATIONTEPF-9679-SMAIL ORDERSTELEPHONE ORDERSTELEX/FAX ORDERSPRODUCT CUSTOMER SERVICEPARTS CUSTOMER SERVICE
Digital XTS 3000Portable RadiosBasic Service ManualMotorola8000 West Sunrise BoulevardFort Lauderdale, Florida 3332268P81083C85-OTM TM

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