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Motorola V975 Service Manual

Digital wireless telephone
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Download this manual See also: Service Manual, User Manual
Level 1 and 2 Service Manual
V975/V980
Digital Wireless Telephone
UMTS 2100, GSM 900/1800/1900 GPRS

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Summary of Contents for Motorola V975

  • Page 1 Level 1 and 2 Service Manual V975/V980 Digital Wireless Telephone UMTS 2100, GSM 900/1800/1900 GPRS...

  • Page 3: Table Of Contents

    1 and 2 V975/V980 GSM 6809490A74-O Level 1 and 2 Service Manual Contents Contents Introduction ................5 Product Identification .
  • Page 4 Contents V975/V980 GSM October 29, 2004 6809490A74-O...

  • Page 5: Introduction

    Available on a contract basis, Motorola Inc. offers comprehensive maintenance and installation programs that allow customers to meet requirements for reliable, continuous communications. To learn more about the wide range of Motorola service programs, contact your local Motorola products representative or the nearest Customer Service Manager. Product Identification Motorola products are identified by the model number on a label usually located under the battery.

  • Page 6: Computer Program Copyrights

    The Motorola products described in this manual may include Motorola computer programs stored in semiconductor memories or other media that are copyrighted with all rights reserved worldwide to Motorola. Laws in the United States and other countries preserve for Motorola, Inc. certain exclusive rights to the copyrighted...

  • Page 7: Warranty Service Policy

    Customer’s original units will be repaired but not refurbished as standard. Appointed Motorola Service Hubs will perform warranty and non-warranty field service for level 2 (assemblies) and level 3 (limited PCB component). Motorola High Tech Centers will perform level-4 (full component) repairs.

  • Page 8: Parts Replacement

    When ordering replacement parts or equipment, include the Motorola part number and description used in this service manual. When the Motorola part number of a component is not known, use the product model number or other related major assembly along with a description of the related major assembly and of the component in question.

  • Page 9: Specifications

    Level 1 and 2 Service Manual Introduction Specifications Table 1. Specifications Function Specification Frequency Range EGSM TX: 880 - 915 MHz Frequency (MHz) = 890 + (0.2 × n) where: 0 ≤ n ≤ 124 Frequency (MHz) = 890 + (0.2 × (n – 1024)) where: 955 ≤ n ≤ 1023 RX: 925 –...
  • Page 10 Introduction V975/V980 GSM Speech Coding Type Regular Pulse excitation / linear predictive coding with long term prediction (RPE LPC with LTP) Bit Rate 13.0 kbps RF Power Output 32 dBm nominal GSM, 28.5 dBm nominal DCS / PCS Receive Sensitivity...

  • Page 11: Product Overview

    Level 1 and 2 Service Manual Product Overview Product Overview Motorola V975 and V980 telephones deliver 3G features in a smalle and lightweight package. These Global System for Mobile communications (GSM) General Packet Radio Service (GPRS) Wireless Application Protocol (WAP)-enabled mobile phones...
  • Page 12 Because the GSM standard does not allow you to store voice tags on the SIM card, voice tags are added to the phone’s memory. V975 and V980 telephones also include a voice note recorder that allows up to 2 minutes of personal messages to be recorded. This feature has a complete set of record, playback, and management tools that make it easy to store and maintain a list of personal memos.
  • Page 13 Level 1 and 2 Service Manual Product Overview • Tap. Press a key to enter a character. • Numeric. The keypad produces numeric characters only. For some text areas, such as phone numbers, this is the only method available. Caller Line Identification Upon receipt of a call, the calling party’s phone number is compared to the phonebook.

  • Page 14: General Operation

    General Operation Controls, Indicators, and Input / Output (I/O) Connections The V975 and V980 telephone’s controls are located on the sides of the phone and on the keypad. Indicators, in the form of icons, are displayed on the LCD (see Figure 2).

  • Page 15: Alert Settings

    Whether a phone displays all indicators depends on the programming and services to which the user subscribes. Alert Settings V975 and V980 telephones include up to 32 preset ring tones and vibrations that can be applied to all alert events at the same time. ➧...

  • Page 16: Operation

    General Operation V975/V980 GSM If the battery is removed while receiving a message, the message will be lost. Operation For detailed operating instructions, refer to the appropriate user’s guide listed in “Related Publications” on page 43. October 29, 2004 6809490A74-O...

  • Page 17: Tools And Test Equipment

    GSM / DCS Test SIM Used to enable manual test mode. 1. To order in North America, contact Motorola Aftermarket and Accessories Division (AAD) at (800) 422-4210 or FAX (800) 622-6210; Internationally, AAD can be reached by calling (847) 538-8023 or faxing (847) 576-3023.

  • Page 18: Disassembly

    V975/V980 GSM Disassembly This section provides instructions for the disassembly of V975 and V980 telephones. Tools and equipment used for the phone are listed in Table 1, preceding. Many of the integrated devices used in these phones are vulnerable to damage from ESD.
  • Page 19 Level 1 and 2 Service Manual Disassembly Lift the bottom end of the battery first and then lift the battery out the phone. (see Figure 2). Battery 040940o Figure 2. Removing the Battery There is a danger of explosion if the Lithium Ion battery is replaced incorrectly. Replace only with the same type of battery or equivalent as recommended by the battery manufacturer.

  • Page 20: Removing And Replacing The Subscriber Identity Module (Sim)

    Disassembly V975/V980 GSM Removing and Replacing the Subscriber Identity Module (SIM) Remove the battery door and battery as described in the procedures. Slide the SIM out of the SIM holder as shown in Figure 3. 040941o Figure 3. Removing the SIM Carefully lift the SIM out of the phone.

  • Page 21: Removing And Replacing The Antenna

    Level 1 and 2 Service Manual Disassembly Removing and Replacing the Antenna Remove the battery cover and battery as described in the procedures. By hand, rotate the antenna counterclockwise until loose (see Figure 4.) Antenna 040942o Figure 4. Removing the Antenna When the antenna threads are completely disengaged, pull the antenna straight out of the phone to remove.

  • Page 22: Removing And Replacing The Rear Housing

    Disassembly V975/V980 GSM Removing and Replacing the Rear Housing This product contains static-sensitive devices. Use anti-static handling procedures to prevent electrostatic discharge (ESD) and component damage. Remove the battery cover, battery, SIM, and antenna as described in the procedures. Using a Torx driver with a T-6 bit, remove the 6 screws along the sides of the rear housing (see Figure 5).
  • Page 23 Level 1 and 2 Service Manual Disassembly Carefully lift the rear housing away from the phone as shown in Figure 6. Rear Housing 040945o Figure 6. Removing the Rear Housing Lift the metal stiffener away from the transceiver PC board. Metal Stiffener Transceiver PCB Assembly 040946o...

  • Page 24: Removing And Replacing The Transceiver Board Assembly

    Disassembly V975/V980 GSM Lower the rear housing onto the phone. Ensure the screw holes are aligned to the transceiver PCB assembly. Insert the 6 housing screws and tighten to a torque setting of 1.5 inch pounds or 16 N/cm (Newton/centimeters). Do not over tighten.
  • Page 25 Level 1 and 2 Service Manual Disassembly Flex the front housing outward slightly to release the housing catch on each side of the transceiver PCB assembly (see Figure 9). Front Housing Catch Transceiver PCB Assembly Front Housing Catch 040948o Figure 9. Disconnecting the Flex from the Transceiver Board Use the plastic tweezers to remove the headset connector cover from the front housing (see Figure 10).
  • Page 26 Disassembly V975/V980 GSM Lift the transceiver board assembly and the keypad switchdome assembly out of the front housing (see Figure 11). Transceiver PCB Assembly Keypad Switchdome Assembly 031641o Figure 11. Removing the Transceiver Board Assembly Turn the transceiver board assembly over to expose the switchdome keypad flex connector.
  • Page 27 Level 1 and 2 Service Manual Disassembly Use the disassembly tool to unseat the switchdome keypad flex connector from its socket (see Figure 12). 040951o Figure 12. Removing the Switchdome Flex Connector To replace, place the transceiver board assembly next to the switchdome assembly with the flex connector on top.

  • Page 28: Removing And Replacing The Real-Time Clock (Rtc) Battery

    Disassembly V975/V980 GSM Removing and Replacing the Real-Time Clock (RTC) Battery Remove the battery cover, battery, SIM, antenna, rear housing, and transceiver board assembly as described in the procedures. Use the disassembly tool to pry the RTC battery out of its socket on the transceiver board (see Figure 13).

  • Page 29: Removing And Replacing The Keypad, Volume/Smart And Voice Buttons

    Level 1 and 2 Service Manual Disassembly Removing and Replacing the Keypad, Volume/Smart, and Voice Buttons Remove battery cover, battery, SIM, antenna, rear housing, and transceiver board assembly as described in the procedures. Using the plastic tweezers, lift the top part of the keypad assembly, which includes the volume/smart buttons and voice button, away from the transceiver board assembly (see Figure 14).

  • Page 30: Removing And Replacing The Flip Assembly

    Disassembly V975/V980 GSM Removing and Replacing the Flip Assembly Remove the battery cover, battery, SIM, antenna, rear housing, transceiver board assembly, and keypad assembly as described in the procedures. Carefully flex the front housing downward to release the hinge assembly from the front housing (see Figure 15).

  • Page 31: Removing And Replacing The Flip Cover

    Level 1 and 2 Service Manual Disassembly To replace, carefully thread the display flex connector through the slot on the keypad housing assembly. Avoid damaging the flex cable. Flex the front housing slightly and insert the hinge assembly into the front housing.
  • Page 32 Disassembly V975/V980 GSM Use the disassembly tool to release the 3 latches on each side of the flip assembly (see Figure 17). Flip Cover Latches Flip Cover Disassembly Tool 040958o Figure 17. Removing the Flip Cover Latches Carefully lift the flip cover away from the flip assembly. Avoid damaging the display flex cable and connector.

  • Page 33: Removing And Replacing The Flip Display Assembly

    Level 1 and 2 Service Manual Disassembly Removing and Replacing the Flip Display Assembly Remove the battery cover, battery, SIM, antenna, rear housing, transceiver board assembly, keypad assembly, flip assembly, and flip cover as described in the procedures. Use the metal tweezers to release the 2 latches on each side of the flip display shield (see Figure 18).
  • Page 34 Disassembly V975/V980 GSM The FPC (flex) is easily damaged. Exercise extreme care when handling. Use the disassembly tool to unseat the display assembly flex connector from its socket (see Figure 20). Display Flex Connector 040963o Figure 20. Removing the Display Assembly Flex Connector Disconnect the flex connector from the display assembly PCB.
  • Page 35 Level 1 and 2 Service Manual Disassembly To replace, align the display assembly to the flip assembly. The FPC (flex) is easily damaged. Exercise extreme care when handling. Carefully seat the display flex connector to the socket on the flip assembly. 10.

  • Page 36: Removing And Replacing The Camera Assembly

    Disassembly V975/V980 GSM Removing and Replacing the Camera Assembly Remove the battery cover, battery, SIM, antenna, rear housing, transceiver board assembly, flip assembly, and flip CLI lens assembly as described in the procedures. The FPC (flex) is easily damaged. Exercise extreme care when handling.

  • Page 37: Removing And Replacing The Display Module

    Level 1 and 2 Service Manual Disassembly Removing and Replacing the Display Module Remove the battery cover, battery, SIM, antenna, rear housing, transceiver board assembly, flip assembly, and flip CLI lens assembly as described in the procedures. The FPC (flex) is easily damaged. Exercise extreme care when handling. Use the disassembly tool to unseat the CLI display connector from its socket on the display module (see Figure 23).

  • Page 38: Subscriber Identity Module (Sim) And Identification

    The Mechanical Serial Number (MSN) is an individual unit identity number and remains with the unit throughout its life. The MSN can be used to log and track a phone on Motorola's Service Center Database. The MSN is divided into 4 sections as shown in Figure 24.
  • Page 39 Level 1 and 2 Service Manual Subscriber Identity Module (SIM) and Identification International Mobile Station Equipment Identity (IMEI) The International Mobile station Equipment Identity (IMEI) number is an individual number unique to the PCB and stored within the phone's memory. The IMEI uniquely identifies an individual mobile station provides a way to control access to GSM networks based on mobile station types or individual phones.

  • Page 40: Troubleshooting

    Troubleshooting V975/V980 GSM Troubleshooting Table 3. Level 1 and 2 Troubleshooting Chart SYMPTOM PROBABLE CAUSE VERIFICATION AND REMEDY 1. Telephone will not turn on or stay on. a) Battery either discharged or Measure battery voltage across a 50 ohm (>1 defective.
  • Page 41 Level 1 and 2 Service Manual Troubleshooting Table 3. Level 1 and 2 Troubleshooting Chart (Continued) SYMPTOM PROBABLE CAUSE VERIFICATION AND REMEDY 5. Telephone transmit audio is weak a) Microphone connections to the Gain access to the microphone as described in (usually indicated by called parties transceiver board assembly defective.

  • Page 42: Programming: Software Upgrade And Flexing

    Troubleshooting V975/V980 GSM Table 3. Level 1 and 2 Troubleshooting Chart (Continued) SYMPTOM PROBABLE CAUSE VERIFICATION AND REMEDY 9. Vibrator feature not functioning. Transceiver board assembly defective. Replace the transceiver board assembly (refer to 1c). Verify that the fault has been cleared and reassemble with the new transceiver board assembly.

  • Page 43: Part Number Charts

    Level 1 and 2 Service Manual Part Number Charts Part Number Charts The following charts are provided as a reference for the parts associated with V975 and V980 telephones. Related Publications Motorola V975 User’s Guide, English 6809490A74-O November 12, 2004...

  • Page 44: Exploded View Diagram

    Part Number Charts V975/V980 GSM Exploded View Diagram 040967o Figure 25. Exploded View Diagram November 12, 2004 6809490A74-O...

  • Page 45: Exploded View Parts List

    Replace only with the same type of battery or equivalent as recommended by the battery manufacturer. Dispose of used batteries according to the manufacturer’s instructions. To order parts use the following Link: https://wissc.motorola.com/wissc_root/main/BrowserOK.html (Password is Required) For information on ordering parts contact EMEA at +49 461 803 1638. 6809490A74-O...
  • Page 46 Part Number Charts V975/V980 GSM November 12, 2004 6809490A74-O...
  • Page 47 1 and 2 Index Level 1 and 2 Service Manual Index V975/V980 6809490A74-O product 5 IMEI 39 alert settings 15 indicators antenna, removing and replacing 21 service indicator (status light) 14 Introduction 5 battery function 15 Liquid Crystal Display (LCD) 14...
  • Page 48 Index V975/V980 rear housing 22 SIM 20 voice recognition 11 transceiver board assembly 24 volume/smart buttons, removing and replacing 29 volume/smart buttons 29 replacement parts contact information 8 warranty service 7 replacing Wireless Access Protocol (WAP) 12 antenna 21 battery 18...
  • Page 50 MOTOROLA, the Stylized M Logo, and all other trademarks indicated as such herein are trademarks of Motorola, Inc. All other product or service names are the property of their respective owners. ® Reg. U.S. Pat. & Tm. Off. © 2004 Motorola, Inc.

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