Motorola Talkabout 191 Service Manual
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Motorola Talkabout 191 Service Manual

Dual band wireless telephone
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Level 1 and 2 Service Manual
Product Family C25
Dual Band Wireless Telephone
®
Talkabout
191
GSM 900/1800 MHz

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Summary of Contents for Motorola Talkabout 191

  • Page 1 Level 1 and 2 Service Manual Product Family C25 Dual Band Wireless Telephone ® Talkabout GSM 900/1800 MHz...

  • Page 3: Table Of Contents

    1 and 2 1 and 2 6881039B15 6881039B15 Level 1 and 2 Service Manual Table of Contents Table of Contents Table of Contents Table of Contents Introduction ................1 Product Identification .
  • Page 4 Table of Contents Product Family C25 October 22, 2001...

  • Page 5: Introduction

    Available on a contract basis, Motorola Inc. offers comprehensive maintenance and installation programs which enable 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 the housing.

  • 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). The Motorola HTC centers will perform level 4 (full component) repairs.

  • Page 8: Parts Replacement

    When ordering crystals or channel elements, specify the Motorola part number, description, crystal frequency, and operating frequency desired. 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 Specifications Specifications General Function Specification Frequency Range GSM 880-915 MHz Tx (with EGSM) 925-960 MHZ Rx Frequency Range DCS 1710-1785 MHz Tx 1805-1880 MHz Rx Channel Spacing 200 kHz Channels 174 EGSM Modulation GMSK at BT = 0.3 Transmitter Phase Accuracy 5 Degrees RMS, 20 Degrees peak Duplex Spacing...

  • Page 10: Product Overview

    Product Overview Product Family C25 Product Overview Motorola PF C25 mobile telephones feature global system for mobile communications (GSM) air interface. The PF C25 also provides a wireless application protocol (WAP) Internet browser. The PF C25 telephones incorporate a new user interface (UI) for easier operation, allows short message service (SMS) text messaging, and includes personal information manager (PIM) functionality.
  • Page 11 Level 1 and 2 Service Manual Product Overview Speaker Dependant Voice Recognition and Voice Note Recording This feature allows voice tags to be used for voice dialing up to 20 phone numbers in the phone book and for creating up to 5 voice shortcuts for menu items. The phone must be “trained”...
  • Page 12 Product Overview Product Family C25 event that no caller identification information is available, the message INCOMING CALL is displayed. User must subscribe to a caller line identification service through their service provider. Call Forwarding Call forwarding is a network feature that diverts incoming calls to another phone number if the user or phone is unavailable, or the user does not wish to receive calls.

  • Page 13: General Operation

    Level 1 and 2 Service Manual General Operation General Operation Controls, Indicators, and Input / Output (I/O) Connectors The PF C25 telephone controls are located on the keyboard. The headphone jack and power jack are on the side and bottom, respectively. Indicators, in the form of icons, are displayed on the LCD (see Figure 1 and Figure 2).
  • Page 14 General Operation Product Family C25 010713-o Figure 2. Function keys October 23, 2001 6881039B15...
  • Page 15 Level 1 and 2 Service Manual General Operation 010714-o Figure 3. Alphanumeric Keys Liquid Crystal Display (LCD) The LCD provides a high contrast backlit display for easy readability in all light conditions. The large bit-mapped 98 x 64 pixel display includes 3 lines of text, 1 line of icons, and 1 line of soft key labels.
  • Page 16 General Operation Product Family C25 Figure 4 shows the appearance of the PF C25 display when idle. 010715-o Figure 4. Idle Display The phone’s icon indicators are shown in Figure 5. 010716-o Figure 5. Icon Indicators • Signal Strength Indicator. Shows the strength of the phone’s connection with the network.

  • Page 17: User Interface Menu Structure

    Level 1 and 2 Service Manual General Operation • Short Message. Appears when the phone receives a text message or has an unread text message. This is a network-dependent feature. • Voice Mail Waiting. Appears when a voicemail message is received. This is a network-dependent feature.
  • Page 18 General Operation Product Family C25 010717-o Figure 6. Menu Structure October 23, 2001 6881039B15...

  • Page 19: Alert Settings

    Level 1 and 2 Service Manual General Operation Alert Settings PF C25 telephones include up to 32 preset alert tones and vibrations that can be applied individually to specific alert events or to all events at the same time. Pressing either volume key will mute the alert. Battery Function Battery Gauge The telephone displays a battery level indicator icon in the idle screen to indicate...

  • Page 20: Tools And Test Equipment

    Digital Multimeter Used to measure battery voltage 1. To order in North America, contact Motorola Aftermarket and Accessories Division (AAD) at (847) 538-8000; Internationally, AAD can be reached by calling (847) 538-8023 or faxing (847) 576-3023. 2. Not available from Motorola. To order, contact Hewlett Packard at (800) 452-4844.

  • Page 21: Disassembly

    Disassembly Product Family C25 Disassembly The procedures in this section provide instructions for the disassembly of PF C25 telephones. Tools and equipment used for the phone are listed in Table 1. Many of the integrated devices used in this equipment are vulnerable to damage from electrostatic discharge (ESD).

  • Page 22: Removing And Replacing The Subscriber Identity Module (Sim)

    Level 1 and 2 Service Manual Disassembly Lift the bottom end of the battery from the phone, then remove it completely as shown in the figure. There is a danger of explosion if the Nickel Metal Hydride battery is replaced incorrectly.

  • Page 23: Removing And Replacing The Rear Escutcheon

    Disassembly Product Family C25 Slide the SIM latch to lock in place. Replace the battery as described in the procedures. Removing and Replacing the Rear Escutcheon DISASSEMBLY TOOL REAR HOUSING ESCUTCHEON 010701-o Figure 9. Removing the Rear Escutcheon Remove the battery as described in the procedures. Using the flat end of the disassembly tool, carefully peel the escutcheon from the rear housing.
  • Page 24 Level 1 and 2 Service Manual Disassembly Locate the 6 screws holding the front housing to the rear housing. See Figure 10. Push the battery latch in the direction of the arrow to expose the 2 bottom housing screws as shown in Figure 10. HOUSING SCREW, 6 PLACES BATTERY...

  • Page 25: Removing And Replacing The Antenna

    Disassembly Product Family C25 Slide the battery latch toward the bottom of the phone until it snaps into place. Replace the SIM and battery as described in the procedures. Removing and Replacing the Antenna Remove the battery, SIM, and rear housing as described in the procedures. Using a firm even pressure, pull the antenna straight out of the rear housing to remove.

  • Page 26: Removing And Replacing The Vibrator And Vibrator Grommet

    Level 1 and 2 Service Manual Disassembly Removing and Replacing the Vibrator and Vibrator Grommet Remove the battery, SIM, and rear housing as described in the procedures REAR HOUSING DISASSEMBLY TOOL VIBRATOR ASSEMBLY VIBRATOR VIBRATOR GROMMET 010704-o Figure 12. Removing the Vibrator and Vibrator Grommet Using the flat end of the disassembly tool, carefully pry the vibrator assembly from its cavity in the rear housing as shown in Figure 12.

  • Page 27: Removing And Replacing The Alert Transducer Assembly

    Disassembly Product Family C25 Removing and Replacing the Alert Transducer Assembly Remove the battery, SIM, and rear housing as described in the procedures Using the flat end of the disassembly tool, carefully pry the transducer from its cavity in the rear housing as shown in Figure 13. ALERT DISASSEMBLY REAR...

  • Page 28: Removing And Replacing The Transceiver Board

    Level 1 and 2 Service Manual Disassembly Removing and Replacing the Transceiver Board This product contains static-sensitive devices. Use anti-static handling procedures to prevent electrostatic discharge (ESD) and component damage. Remove the battery, SIM, and rear housing as described in the procedures Using the flat end of the disassembly tool, carefully loosen the transceiver board from the front housing.

  • Page 29: Removing And Replacing The Rtc Battery

    Disassembly Product Family C25 Removing and Replacing the RTC Battery Remove the battery, SIM, rear housing, and transceiver board as described in the procedures Use the flat end of the disassembly tool to pry the real time clock (RTC) battery from its socket on the transceiver board.

  • Page 30: Removing And Replacing The Keypad

    Level 1 and 2 Service Manual Disassembly Removing and Replacing the Keypad Remove the battery, SIM, rear housing, and transceiver board, as described in the procedures DISASSEMBLY TOOL KEYPAD FRONT HOUSING 010708-o Figure 16. Removing the Keypad Lift the keypad from the front housing as shown in Figure 16. To replace, insert the keypad into the front housing.

  • Page 31: Removing And Replacing The Earpiece Speaker

    Disassembly Product Family C25 Removing and Replacing the Earpiece Speaker Remove the battery, SIM, rear housing, and transceiver board as described in the procedures. EARPIECE SPEAKER DISASSEMBLY TOOL FRONT HOUSING 010709-o Figure 17. Removing the Earpiece Speaker Using the flat end of the disassembly tool, pry the earpiece speaker from its cavity in the front housing.

  • Page 32: Removing And Replacing The Microphone And Microphone Grommet

    Level 1 and 2 Service Manual Disassembly Removing and Replacing the Microphone and Microphone Grommet This product contains static-sensitive devices. Use anti-static handling procedures to prevent electrostatic discharge (ESD) and component damage. Remove the battery, SIM, rear housing, and transceiver board as described in the procedures MICROPHONE ASSEMBLY...

  • Page 33: Removing And Replacing The Keypad Switch Dome Array

    Disassembly Product Family C25 Align the microphone assembly with the microphone socket press into place until fully seated. The microphone assembly is keyed to fit the microphone socket only one way. Be sure the opening in the microphone grommet is positioned to face the opening in the housing when reassembled.
  • Page 34 Level 1 and 2 Service Manual Disassembly Apply even pressure across the entire surface of the switch dome array to ensure proper adhesion. Replace the transceiver board, rear housing, SIM, and battery as described in the procedures. Verify correct operation. 6881039B15 October 23, 2001...

  • Page 35: Sim Card And Identification

    The Mechanical Serial Number (MSN) is an individual unit identity number and remains with the unit throughout the life of the unit. The MSN can be used to log and track a unit on Motorola's Service Center Database. The MSN is divided into 4 sections as shown in Figure 20.
  • Page 36 Level 1 and 2 Service Manual SIM Card 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 is stored within the unit's memory. The following diagram illustrates the various parts of this number.

  • Page 37: Troubleshooting

    Product Family C25 Troubleshooting Manual Test Mode Motorola PF C25 telephones are equipped with a manual test mode capability. This allows service personnel to verify functionality and perform fault isolation by entering keypad commands. To enter the manual test command mode, a GSM / DCS test SIM must be used.

  • Page 38: Troubleshooting Chart

    Level 1 and 2 Service Manual Troubleshooting Troubleshooting Chart Table 3. PF C25 Telephones: 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 defective.
  • Page 39 Troubleshooting Product Family C25 Table 3. PF C25 Telephones: Level 1 and 2 Troubleshooting Chart (Continued) SYMPTOM PROBABLE CAUSE VERIFICATION AND REMEDY b) Transceiver board assembly Replace the transceiver board assembly defective. (refer to 1c). Verify that the fault has been cleared and reassemble with the new transceiver board assembly.

  • Page 40: Programming: Software Upgrade And Flexing

    Level 1 and 2 Service Manual Troubleshooting Programming: Software Upgrade and Flexing The following hardware codes must be observed in the flashing software when the phone is flashed: Hardware Region Code EMEA Asia If the phone is flexed with the wrong software, the phone displays the following message: Invalid S/W load.

  • Page 41: Part Number Charts

    Part Number Charts Product Family C25 Part Number Charts The following charts are provided as a reference for the parts associated with PF C25 telephones. Exploded View Diagram 010697-o Figure 22. Exploded View Diagram October 23, 2001 6881039B15...

  • Page 42: Exploded View Parts List

    Dispose of used batteries according to the manufacturer’s instructions. You can use the following link to order parts: https://wissc.motorola.com/wissc_root/main/BrowserOK.html A password is required. For information on ordering parts for EMEA region please call +44 131 479 1274...

  • Page 43: Model-Dependent Part Numbers

    Part Number Charts Product Family C25 Model-dependent Part Numbers Table 5. Model-dependent Part Numbers Item Part Description Part Number Number Front housing, C25, Frosted Silver 60.G1703.012 Front housing, C25, Graphite Gray 60.G1703.022 Front housing, C25, Moonstone Blue 60.G1703.032 Rear housing, C25, Frosted Silver 60.G1704.002 Keypad English - C25 47.G1701.001...

  • Page 44: Accessories

    Belt Clip, Black SYN8631 Pouch, Leather, Black MOTFL0074K Pouch, Black & Light Grey w/ plastic front MOTFQ0075M Pouch, Light Blue w/velcro MOTPT0076M Pouch, Medium Blue MOTPT0076M Related Publications Motorola Timeport 191 Wireless Phone User Guide, English 9888816L01 6881039B15 October 23, 2001...
  • Page 45 Part Number Charts Product Family C25 October 23, 2001 6881039B15...

  • Page 46: Index

    1 and 2 Index Level 1 and 2 Service Manual Index 6881039B15 Index identification 33 international mobile station equipment identity 34 mechanical serial number 33 accessories product 1 part numbers 42 IMEI 34 alert modes 15 Introduction 1 alert transducer removing 25 antenna, removing and replacing 23 keypad switch dome array, removing and replacing 31...
  • Page 47 Index Product Family C25 related publications 42 manual test mode commands 35 removing troubleshooting chart 36 alert transducer 25 antenna 23 battery 15 voice recognition 7 earpiece speaker 29 keypad 28 keypad switch dome array 31 microphone 30 WAP (Wireless Access Protocol) 7 rear escutcheon 21 warranty service 3 rear housing 21...
  • Page 49 MOTOROLA, the Stylized M Logo, and all other trademarks indicated as such herein are trademarks of Motorola, Inc. ® Reg. U.S. Pat. & Tm. Off. All other product or service names are the property of their respective owners. ã 2001 Motorola, Inc.

This manual is also suitable for:

C25 seriesGsm 900Gsm 1800

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