Motorola HT1250-LS+ Basic Service Manual
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Motorola HT1250-LS+ Basic Service Manual

Motorola HT1250-LS+ Basic Service Manual

Professional series 200 mhz 700 mhz
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See also: Service Manual , User Manual
Professional Series
Two-Way Radio Basic Service Manual
LS +
• •
HT1250
200 MHz
700 MHz

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Summary of Contents for Motorola HT1250-LS+

  • Page 1 Professional Series Two-Way Radio Basic Service Manual LS + • • HT1250 200 MHz 700 MHz...

  • Page 2: Computer Software Copyrights

    SHOULD IMMEDIATELY RETURN THE PRODUCT IN ITS ENTIRETY TO ITS PLACE OF PURCHASE FOR A REFUND. Motorola grants to You a non-exclusive license to use the SOFTWARE in the manner described in the docu- mentation associated with the product. Motorola retains ownership of the SOFTWARE including all patent, copyrights, and other intellectual property rights.
  • Page 3 SHOULD IMMEDIATELY RETURN THE PRODUCT IN ITS ENTIRETY TO ITS PLACE OF PURCHASE FOR A REFUND. Motorola grants to You a non-exclusive license to use the SOFTWARE in the manner described in the docu- mentation associated with the product. Motorola retains ownership of the SOFTWARE including all patent, copyrights, and other intellectual property rights.

  • Page 4: Table Of Contents

    Table of Contents Product Safety and Standards Compliance ............. vii Chapter 1 Introduction Scope of Manual ....................1-1 Warranty and Service Support ................1-1 1.2.1 Warranty Period and Return Instructions ............1-1 1.2.2 After Warranty Period..................1-1 1.2.3 Piece Parts Availability ..................1-2 1.2.4 Technical Support ....................
  • Page 5 3.7.2 PTT Reassembly....................3-9 3.7.3 Speaker, Microphone, and Universal Connector Flex Reassembly ....3-10 3.7.4 Keypad, Display, and Keypad/PassPort Option Board Reassembly ....3-10 3.7.5 Chassis Assembly Reassembly ................ 3-11 3.7.6 Chassis and Front Cover Reassembly.............. 3-11 3.7.7 Option Board Installation................... 3-12 HT1250•LS+ Radio Exploded Mechanical View and Parts List......3-13 Service Aids......................3-15 3.10...
  • Page 6 Chapter 7 Accessories HT1250•LS+ Accessories ..................7-1 7.1.1 Antennas ......................7-1 7.1.2 Carrying Accessories ..................7-1 7.1.3 Carry Cases ......................7-1 7.1.4 Chargers ......................7-2 7.1.5 Vehicular Accessories ..................7-2 7.1.6 Batteries ......................7-2 7.1.7 Adapters ......................7-2 7.1.8 Miscellaneous...................... 7-3 7.1.9 Service Aids ......................
  • Page 7 List of Figures Figure 3-1. Battery Removal..................3-4 Figure 3-2. Knob Removal..................3-4 Figure 3-3. Chassis Removal ..................3-5 Figure 3-4. Unlatch Flex Connectors................3-5 Figure 3-5. Remove Main Board from Chassis ............3-6 Figure 3-6. Remove Retainer ..................3-7 Figure 3-7.
  • Page 8 List of Tables Table 1-1. Radio Model Number (Example: AAH25MDF4DP5AN) ......1-4 Table 3-1. Service Aids.................... 3-15 Table 3-2. Recommended Test Equipment ............. 3-16 Table 4-1. Test Environments (Side Button 1)............4-3 Table 4-2. Test Channel Spacing (Side Button 2) ............. 4-3 Table 4-3.

  • Page 10: Product Safety And Standards Compliance

    Product Safety and Standards Compliance booklet for RF energy awareness information and operating instructions to ensure compliance with RF energy exposure limits in the FCC standard. The Product Safety and Standards Compliance booklet (Motorola Publication part # 68P81095C98) is enclosed with your radio.
  • Page 11 viii Safety and General Information...

  • Page 12: Chapter 1 Introduction

    In instances where the product is covered under a “return for replacement” or “return for repair” warranty, a check of the product should be performed prior to shipping the unit back to Motorola. This is to ensure that the product has been correctly programmed or has not been subjected to damage outside the terms of the warranty.

  • Page 13: Piece Parts Availability

    Some replacement parts, spare parts, and/or product information can be ordered directly. If a complete Motorola part number is assigned to the part, and it is not identified as Depot ONLY, it is available from the Accessories and Aftermarket Division (AAD). If no part number is assigned, the part is not normally available from Motorola.

  • Page 14: Technical Support

    Technical support is available to assist the dealer/distributor in resolving any malfunction which may be encountered. Initial contact should be by telephone to Customer Resources wherever possible. model number When contacting Motorola Technical Support, be prepared to provide the product serial number and the unit’s For service you can contact one of the following Depots.

  • Page 15: Radio Model Information

    Introduction Radio Model Information The model number and serial number are located on a label attached to the back of your radio. You can determine the RF output power, frequency band, protocols, and physical packages. The example below shows one portable radio model number and its specific characteristics. Table 1-1.

  • Page 16: Intrinsically Safe Radio Information

    WARNING: Do not disassemble the FMRC Approved Product unit in any way that exposes the internal electrical circuits of the unit. Radios must ship from the Motorola manufacturing facility with the hazardous atmosphere capability and FM Approval labeling. Radios will not be “upgraded” to this capability and labeled in the field.

  • Page 17: Repair Of Fmrc Approved Products

    FMRC Approved model. 2.2.3 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.

  • Page 18: Chapter 3 Maintenance

    Chapter 3 Maintenance Introduction This chapter provides details about the following: Preventive maintenance (inspection and cleaning) Safe handling of CMOS and LDMOS devices Disassembly and reassembly of the radio Installation of Optional Retrofit Kit Installation of Option Boards Preventive Maintenance The radios do not require a scheduled preventive maintenance program;...

  • Page 19: Safe Handling Of Cmos And Ldmos Devices

    When damaged parts are replaced, identical parts should be used. If the identical replacement part is not locally available, check the parts list for the proper Motorola part number and order the part from the nearest Motorola Communications parts center listed in the “Piece Parts” section of this manual (See page 1-2).

  • Page 20: Disassembling And Reassembling The Radio - General

    If a unit requires more complete testing or service than is customarily performed at the basic level, send this unit to a Motorola Authorized Service Center. (See Chapter 1, section 1.2.4 Technical Support on page 1-3 for a list of authorized service centers.) The following disassembly procedures should be performed only if necessary: section 3.6.2 Chassis Assembly Disassembly on page 3-6...

  • Page 21: Detailed Radio Disassembly

    Maintenance Detailed Radio Disassembly 3.6.1 Front Cover from Chassis Disassembly 1. Turn off the radio. 2. Remove the battery: a. Pull down on the two battery-release buttons. b. With the buttons pulled down, the top of the battery will fall from the radio. c.

  • Page 22: Figure 3-3. Chassis Removal

    Maintenance 5. Separate the chassis from the internal electronics front cover assembly as follows: a. Insert the portable chassis removal tool, 6680702Z01, or similar instrument, in between the thin remaining wall and the chassis at the bottom of the radio. Do not mar the O-ring sealing area on the housing.

  • Page 23: Chassis Assembly Disassembly

    Maintenance 3.6.2 Chassis Assembly Disassembly 1. If disassembly of the chassis or the main board is required, then use a TORX® screwdriver with a T6 head to remove the four screws holding the main board to the chassis. Screws (4) Compliant Ground Main...

  • Page 24: Figure 3-6. Remove Retainer

    Maintenance b. Pry the tab away from the side of the front cover until it moves past the ledges on the side wall. Repeat this procedure for the four remaining retainer arm tabs. Flat Blade Speaker-Microphone Screwdriver Flex Circuit Tail Keypad Retainer Arm Tabs (4) Retainer...

  • Page 25: Speaker, Microphone, And Universal Connector Flex Disassembly

    Maintenance NOTE At this point, the Option Board Installation Procedure should be performed, if necessary. (See page 3-12) 3.6.4 Speaker, Microphone, and Universal Connector Flex Disassembly 1. If disassembly of the speaker-microphone assembly is necessary, remove the dustcover by turning the screw at the bottom of the dustcover counterclockwise with your fingers. Lift the dustcover out of its pocket.

  • Page 26: Ptt Disassembly

    Maintenance 3.6.5 PTT Disassembly If required, the PTT bezel and the PTT seal assembly can be disassembled using a small screwdriver as follows: T-Shaped Retainer Tab Bezel Seal Figure 3-9. PTT Removal a. Pry back the T-tab found inside the front cover (in between the four buttons on the PTT assembly).

  • Page 27: Speaker, Microphone, And Universal Connector Flex Reassembly

    3-10 Maintenance 3.7.3 Speaker, Microphone, and Universal Connector Flex Reassembly 1. Feed the universal connector tail of the speaker-microphone flex assembly through the opening in the side wall of the front cover. 2. Peel-off the adhesive liner on the back of the universal connector tail of the flex circuit. Attach the flex tail to the front cover using the guide pins for correct alignment.

  • Page 28: Chassis Assembly Reassembly

    Maintenance 3-11 3.7.5 Chassis Assembly Reassembly 1. Slide on the ground contact (if it was removed) on the top corner boss of the chassis. 2. Replace the O-ring. The tabs on the O-ring should reach into the chassis and point down. 3.

  • Page 29: Option Board Installation

    3-12 Maintenance 3.7.7 Option Board Installation 1. With the keypad retainer removed the keypad backer board can be removed without the use of tools. 2. Remove the jumper flex from the connector on the keypad/PassPort option board. Notice the orientation of the flex to the connector. Arrows on the jumper flex point to the correct way of inserting the flex into the connector.

  • Page 30: Ht1250•Ls Radio Exploded Mechanical View And Parts List

    4286266Z01 Retainer, Keypad PCB 3280534Z01 Seal, Contact 3380565Z28 Nameplate, HT1250•LS 700 MHz 3586057A02 Felt, Speaker 3280536Z01 Gasket, O-Ring 3386269Z01 Escutcheon, Motorola Logo 1480577C01 Boot, Microphone 2780518Z03 Chassis 1586059A01 Dust Cover, Univ Conn 5085738Z03 Speaker Please refer to Battery 1386058A01 Escutcheon, Univ Flex section 7.1.6 on...
  • Page 31 3-14 HT1250•LS+ Radio Exploded Mechanical View and Parts List...
  • Page 32 3-14 HT1250•LS+ Radio Exploded Mechanical View and Parts List...

  • Page 33: Service Aids

    Table 3-1 lists service aids recommended for working on the HT1250 radio. • While all of these items are available from Motorola, most are standard shop equipment items, NOTE and any equivalent item capable of the same performance may be substituted for the item listed.

  • Page 34: Test Equipment

    3-16 Maintenance 3.10 Test Equipment Table 3-2 lists test equipment required to service the HT1250•LS radio. Table 3-2. Recommended Test Equipment Motorola Part Description Characteristics Application R2000, R2600 Service Monitor This monitor will Frequency/deviation meter and sig- R2400, or R2001...

  • Page 35: Configuring And Wiring The Programming/Test Cable

    Maintenance 3-17 3.11 Configuring and Wiring the Programming/Test Cable Block Figure 3-13. Programming/Test Cable AARKN4074 Figure 3-14. Pin Configuration of the Cable Side Connector...

  • Page 36: Figure 3-15. Programming/Test Cable Schematic

    3-18 Maintenance TO RADIO TO RADIO UNIVERSAL TEST SET CONNECTOR RLN4460 EXT SPKR + AUDIO - EXT SPKR - AUDIO + OPTION B+ EXT MIC MIC AUDIO OPT SEL 2 OPT SEL 1 RX DATA VOL CTRL TX DATA DISC RSSI XMIT/RX AUDIO OPT SEL INT/EXT...

  • Page 37: Transceiver Performance Testing

    Chapter 4 Transceiver Performance Testing General These radios meet published specifications through their manufacturing process by utilizing high accuracy laboratory-quality test equipment. The recommended field service equipment approaches the accuracy of the manufacturing equipment with few exceptions. This accuracy must be maintained in compliance with the manufacturer’s recommended calibration schedule.

  • Page 38: Figure 4-1. Radio Side Button Location

    Transceiver Performance Testing 9. Press any of the 18 front panel buttons, the three programmable side buttons, the side PTT button, or the top orange button. A good button press will produce a single beep when pressed and another beep when released. 10.

  • Page 39: Table 4-1. Test Environments (Side Button 1)

    Transceiver Performance Testing Table 4-1. Test Environments (Side Button 1) Number of Side No. of Display Description Function Button 1 Beeps Shows Presses Initial Carrier RX: if carrier detected (No button Squelch TX: mic audio presses required) Tone Private- RX: unsquelch if carrier and tone Line (192.8 Hz) detected TX: mic audio + tone (192.8 Hz)

  • Page 40: Test Frequencies

    Transceiver Performance Testing Test Frequencies The radio channels and test frequencies are listed in Table 4.3. The channels are selected using the channel selector switch located on top of the radio, as shown in Figure 4-1. The test environment and channel spacing for any particular frequency is selected using ‘side buttons 1 and 2’, as listed in Tables 4-1 and 4-2.

  • Page 41: Receiver And Transmitter Performance Tests

    Transceiver Performance Testing Receiver and Transmitter Performance Tests The receiver and transmitter performance tests are contained in Tables 4-4 and 4-5 respectively. Refer to Chapter 5, Figure 5-1, for test equipment setup. Note that all test measurements are taken at °...

  • Page 42: Table 4-5. Transmitter Performance Checks

    Transceiver Performance Testing Table 4-5. Transmitter Performance Checks Test Service Monitor Radio Test Set Comments Name Reference Mode: PWR MON Test Channel 4 PTT to contin- Frequency error Frequency 4th channel test fre- TEST MODE uous (during ±150 Hz (200 NHz models) quency* the perfor- ±400 Hz (700 MHz models)

  • Page 43: Radio Tuning, Programming, Cloning, Passport Tone Options And Diagnostic Functions

    Chapter 5 Radio Tuning, Programming, Cloning, PassPort Tone Options and Diagnostic Functions Introduction This chapter provides an overview of the Customer Programming Software (CPS) and tuner program designed for use in a Windows ® NT, Windows ® 95, Windows ® 98, Windows ®...

  • Page 44: Global Radio Tuning Setup

    5.2.1 Initial Test Equipment Setup The supply voltage is connected to the radio using a Motorola battery eliminator, P/N AA0180305G54. The initial test equipment (Figure 5-1) control settings are listed in Table 5-2. Note: Refer to appropriate program on-line help files for the tuning procedures.

  • Page 45: Cps Programming Setup

    Radio Tuning, Programming, Cloning, PassPort Tone Options and Diagnostic Functions CPS Programming Setup The CPS programming setup, shown in Figure 5-2, is used to program the radio codeplug. Note: Refer to appropriate program on-line help files for the codeplug programming procedures. Radio Test Box Battery...

  • Page 46: Error Codes

    Radio Tuning, Programming, Cloning, PassPort Tone Options and Diagnostic Functions 6. When cloning is completed, both radios reset themselves and turn their green LEDs off. The source radio produces a “clone-exit” tone and displays “Clone Complete”. 7. Turn both radios off. 8.

  • Page 47: Cloning (Passport)

    Radio Tuning, Programming, Cloning, PassPort Tone Options and Diagnostic Functions WARNING: Do NOT turn off the radio or disconnect it from the computer while attempting to PROGRAM the codeplug. Interrupting the programming process WILL DESTROY the code- plug contents and completely DISABLE the radio Procedure: 1.

  • Page 48: Passport Tone Options

    Radio Tuning, Programming, Cloning, PassPort Tone Options and Diagnostic Functions PassPort Tone Options In order to provide more detailed information about the radio’s state to a user or service technician various Tones and Display options are available. One Tone option is a short low pitched tone that sounds whenever the radio loses contact for any reason with its registered PassPort site and begins to search for another site.
  • Page 49 Radio Tuning, Programming, Cloning, PassPort Tone Options and Diagnostic Functions Search Freq-(Enter Search Frequencies): Enter the Service Menu and using the Up/Dn keys scroll to "Search Freq". Press the Select key. Using the numeric keys and Left (P1) key for backup/delete and the "*"...
  • Page 50 Radio Tuning, Programming, Cloning, PassPort Tone Options and Diagnostic Functions...

  • Page 51: Power Up Self-Test

    Chapter 6 Power Up Self-Test Error Codes - Conventional and LTR Radios Turning on the radio starts a self-test routine that checks the RAM, ROM checksum, EEPROM hardware, and EEPROM checksum. If these checks are successful, the radio generates two high- pitched self-test pass tones, or a musical tone (selected in CPS).

  • Page 52: Error Codes - Passport

    Power Up Self-Test Error Codes - PassPort For the purpose of this document the phrase “PassPort Trunking Controller Board” and its acronym “PTCB” are used. Table 6-2. Power-up Display Codes (PassPort Trunking Controller Board) If the error code then, there is To correct the problem...

  • Page 53: Chapter 7 Accessories

    Chapter 7 Accessories HT1250•LS Accessories 7.1.1 Antennas HKAD4000 215-225 MHz, Helical NAF5083 700 MHz 1/2 Wave, Whip 7.1.2 Carrying Accessories All Models/All Battery Chemistries: HLN9714 Spring 2-1/2” Belt Clip HLN9844 Spring 1-1/2” Belt Clip HLN9701 Nylon Carry Case with Beltloop HLN6602 Universal Chest Pack HLN9952...

  • Page 54: Chargers

    Adapter 10 to 20 Pin 7.1.5 Vehicular Accessories RLN4883 Travel Charger (includes voltage regulated lighter adapter, custom charger bse, coil cord, and mounting bracket) RLN4814 Vehicular Mounting Bracket (for use with Motorola Single Unit Conditioning Charger Bases) 3080384G15 Cigarette Lighter Adapter 7.1.6 Batteries WPNN4045...

  • Page 55: Miscellaneous

    Accessories 7.1.8 Miscellaneous HLN9820 Dust Cover for Accessory Connector HLN9793 Charger Insert Spacer - Compatible with “A” version chargers only HLN9794 Space Charger 7.1.9 Service Aids H5177 Customer Programming Software (CPS) - 3 Years Subscription (Conventional, LTR, and PassPort) AARKN4073 Cloning Cable AARKN4074 Programming/Test Cable (requires RIB box)
  • Page 56 Accessories AARMN4029 2-Wire Ear Piece with Microphone and PTT (Black) - FM Approved RLN5316 2-Wire Comfort Ear Piece with Combined Microphone and PTT, Beige Surveillance Kits with Extended-Wear Comfort Earpieces include a Low Noise Enhancement (NTN8371) already attached for extra comfort and convenience. RLN5315 2-Wire Comfort Ear Piece with Combined Microphone and PTT, Black Surveillance Kits with Extended-Wear Comfort Earpieces...
  • Page 57 Accessories 0180300E83 Body Switch Push to Talk for Ear Microphone System AARMN4045 Ear Microphone Interface Module PTT or VOX ENMN4017 3-Wire Surveillance Kit with Microphone and PTT (Beige) NTN1722 Integrated Ear Microphone/Receiver System with PTT on Radio Adapter - FM Approved NKN6508 Replacement Cable for NTN1722 NTN1723...

  • Page 58: Option Boards

    Accessories RLN4761 Medium Custom Earpiece, Right Ear (for use with NTN8371) RLN4762 Large Custom Earpiece, Right Ear (for use with NTN8371) RLN4763 Small Custom Earpiece, Left Ear (for use with NTN8371) RLN4764 Medium Custom Earpiece, Left Ear (for use with NTN8371) RLN4765 Large Custom Earpiece, Left Ear (for use with NTN8371) 7.1.11 Option Boards...

  • Page 59: Chapter 8 Model Chart And Test Specifications

    Chapter 8 Model Chart and Test Specifications 200 MHz (LTR and PassPort) HT1250•LS Portable Radio 200 MHz Item Description PMUD1760AAN Board, HT1250•LS 200 MHz (Limited Keypad) PMUD1761AAN Board, HT1250•LS 200 MHz (Full Keypad) PMHD4011 Back Cover Kit (Limited Keypad) PMHD4012 Back Cover Kit (Full Keypad) PMLN4405 Front Cover Kit (Limited Keypad)

  • Page 60: 700 Mhz (Ltr And Passport)

    Model Chart and Test Specifications 700 MHz (LTR and PassPort) HT1250•LS Portable Radio 700 MHz Item Description PMUF1104AAN HT1250•LS 700 MHz (Limited Keypad) PMUF1105AAN HT1250•LS 700 MHz (Full Keypad) PMHF4004 Back Cover Kit (Limited Keypad) PMHF4005 Back Cover Kit (Full Keypad) PMLN4405 Front Cover Kit (Limited Keypad) PMLN4404...

  • Page 61: Specifications - Ht1250•Ls + Radio

    Model Chart and Test Specifications Specifications - HT1250•LS Radio General Specification 200 MHz 700 MHz Model Numbers: Limited Keypad: AAH25MDF4DP5AN AAH255CF4DP5AN Full Keypad: AAH25MDH4DP6AN AAH255CH4DP6AN Frequency Range: 217-218 MHz Transmit: 746-747 MHz (Talkaround) 219-222 MHz 762-764 MHz (Talkaround) 776-777 MHz 792-794 MHz Receive: 746-747 MHz 762-764 MHz...
  • Page 62 Model Chart and Test Specifications Transmitter Specification 200 MHz 700 MHz Power Output NiMH @ 7.5V: 1 or 5 W 1 or 2.5 W Conducted and Radiated Emission: -16 dBm -16 dBm (except -40 dBm from 1559-1610 MHz) Adjacent Channel Coupled Power: Complies with 47 CFR 27.53 (d) (1) Audio Response: (from 6 dB/oct.

  • Page 63: Glossary Of Terms

    Low Level Expander: slight amount of volume expansion; used to improve the signal to noise ratio. Low-Speed Handshake: 150 baud digital data sent to the radio during trunked operation while receiving audio. Trunked signaling protocol using low speed data. Registered trademark of E.F. Johnson Company. Motorola Digital Communication.
  • Page 64 Glossary MRTI Motorola Radio-Telephone Interconnect: a system that provides a repeater connection to the Public Switched Telephone Network (PSTN). The MRTI allows the radio to access the telephone network when the proper access code is received. Minimum-Shift Keying. OMPAC Over-Molded Pad-Array Carrier: a Motorola custom package, distinguished by the presence of solder balls on the bottom pads.
  • Page 65 Glossary Standby Mode An operating mode whereby the radio is muted but still continues to receive data. System Central Main control unit of the trunked dispatch system; handles ISW and OSW Controller 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).
  • Page 66 Glossary Notes...
  • Page 67 Motorola, Intelligence Everywhere, Professional Radio are trademarks of Motorola, Inc. LTR is a registered trademark of E.F . Johnson Company. PassPort is a registered trademark of Trident Datacom Technologies, Inc. All other product or service names are the property of their respective owners.

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