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Motorola C257 Service Manual

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Level 1-2 Service Manual
C257/C261
Dual Band Wireless Telephone
C257/C261
GSM 900/1800
Rev. 1.03
GSM850/1900

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Summary of Contents for Motorola C257

  • Page 1 Level 1-2 Service Manual C257/C261 Dual Band Wireless Telephone C257/C261 GSM 900/1800 Rev. 1.03 GSM850/1900...

  • Page 2: Table Of Contents

    Identification ........................27 Troubleshooting .......................... 29 Manual Test Mode ......................29 Manual Test Mode Commands ..................29 C257/C261 Troubleshooting Chart ..................30 Programming: Software Upgrade and Flexing ..............31 Part Number Charts ........................32 Exploded View Parts List ....................34 Accessories ........................

  • Page 3: Introduction

    Available on a contract basis, Motorola Inc. offers comprehensive maintenance and installation programs that 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.

  • Page 4: Computer Program Copyrights

    Motorola computer programs in any manner or form without Motorola's prior written consent. Furthermore, the purchase of Motorola products shall not be deemed to grant either directly or by implication, estoppel, or otherwise, any license or rights under the copyrights, patents, or patent applications of Motorola, except for a nonexclusive license to use the Motorola product and the Motorola computer programs with the Motorola product.

  • Page 5: Warranty Service Policy

    Product Support The customer's original phones 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 Transceiver component). Motorola High Tech Centers will perform level 4 (full component) repairs.

  • Page 6: Parts Replacement

    When ordering replacement parts or equipment, include the Motorola part number and description used in the 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 7: Specifications (C257/C261)

    Level 1-2 Service Manual Specifications (C257/C261) Specifications (C257/C261) General Functions Specification Dimensions 109.85*49.95*14.95mm Weight External LCD 65K color TFT, Active area 28.032 x 35.04mm, Pixel Resolution: 128(RGB)x160 Sub-LCD Band "EGSM/DCS" or "GSM850/PCS" Battery 820mAh Li Ion battery Product type Candy Bar...
  • Page 8 Specifications (C257/C261) C257/C261 Transmitter Functions Specification RF Power Output 32.5 dBm nominal GSM900 30 dBm nominal DCS1800 32.5 dBm nominal GSM850 29.5 dBm nominal PCS1900 Output Impedance 50 ohm (TYP) Spurious Emissions -36 dBm from 0.1 to 1GHz, -30 dBm from 1 to 4GHz...

  • Page 9: Product Overview

    (UI) for easier operation in addition to short message service text messaging (SMS), speed dialing, quick dialing, an alarm, a calculator, games, and an address book. The C257/C261 is a dual-band phone that allows for roaming within the EGSM900 / DCS1800 or GSM850 / PCS 1900.

  • Page 10: Caller Line Identification

    Simplified Text Entry The C257/C261 features iTAP™ predictive text entry. Press a key to generate a character and a dynamic dictionary uses this to build and display a set of word or name options. The iTAP™...

  • Page 11: General Functions

    General Functions General Functions Controls, Indicators, and Input/Output (I/O) Connectors The C257/C261 phone's controls are located on the front side of the device and on the keyboard as shown in below. Indicators icons are displayed on the LCD. Menu Key...
  • Page 12 General Functions C257/C261 Liquid Crystal Display (LCD) The LCD provides a multicolor backlit color display with user-adjustable contrast settings for optimum readability in all light conditions. The bit-map 128 x 160 pixel display includes up to 3 lines of text, 1 line of icons, and 1 line of prompts.

  • Page 13: User Interface Menu Structure

    Level 1-2 Service Manual General Functions User Interface Menu Structure The table below shows a portion of the C257/C261 telephone menu structure. Menu Map Phonebook Web Access Recent Calls • Start Browser • Received calls • Web Shortcut • Dialed Calls •...

  • Page 14: Battery Function

    Publications section toward the end of this manual. Tools and Test Equipment The table below lists the tools and test equipment used on C257/C261 telephones. Use either the listed items or the equivalent. Table 1: General Test Equipment and Tools...

  • Page 15: Disassembly

    Used to measure battery voltage HP34401A 1. To order in North America, contact Motorola Aftermarket and Accessories Division (AAD) by phone at (800) 422-4210 or FAX (800) 622-6210. Internationally, AAD can be reached by calling (847) 538-8023 or by fax (847) 576-3023.

  • Page 16: Removing And Replacing The Battery

    Disassembly C257/C261 Removing and Replacing the Battery All batteries can cause property damage and/or bodily injury such as burns if a conductive material such as jewelry, keys, or beaded chains touches exposed terminals. The conductive material may complete an electrical circuit (short circuit) and become quite hot. Exercise care in handling any charged battery, particularly when placing it inside a pocket, purse, or other container with metal objects.

  • Page 17: Removing And Replacing The Sim Card

    Level 1-2 Service Manual Disassembly To replace, insert the battery with the 2 tabs on its bottom end into the battery slots of the phone. Click the battery into place, then slip the battery cover over it. Removing and Replacing the SIM Card First, remove the battery.
  • Page 18 Disassembly C257/C261 Pry away the back cover from the top left corner. Figure 9. Prying open the back cover Remove the vibrator module from the inside of the back cover. Figure 10. Removing the vibrator module Pry out the speaker.
  • Page 19 Level 1-2 Service Manual Disassembly Remove the side rubber. Figure 12. The side rubber Remove the LED rubber. Figure 13. The LED rubber July 1, 2005...
  • Page 20 Disassembly C257/C261 Remove the camera rubber. Figure 14. The camera rubber Remove the speaker rubber. Take precaution to avoid damaging the speaker connector. Figure 15. The speaker rubber July 1, 2005...

  • Page 21: Removing And Replacing The Transceiver Board, The Keypad, And The Antenna Module

    Level 1-2 Service Manual Disassembly Removing and Replacing the Transceiver Board, the Keypad, and the Antenna Module First, remove the back cover, the vibrator module, and various rubber bits. Pry out the transceiver board. Figure 16. Removing the transceiver board Remove the rubber keypad from the front housing.

  • Page 22: Removing And Replacing The Keypad Pcb

    Disassembly C257/C261 Gently pry the antenna module away from the transceiver board. Figure 18. Removing the antenna module Removing and Replacing the Keypad PCB First, remove the transceiver board, the keypad, and the antenna module. Pry off the two PCB side brackets.

  • Page 23: Removing And Replacing The Lcd Module

    Level 1-2 Service Manual Disassembly Pry off the keypad PCB. Figure 20. Removing the keypad PCB Removing and Replacing the LCD Module First, remove the keypad PCB. Remove the LCD holder. Figure 21. Removing the LCD holder July 1, 2005...
  • Page 24 Disassembly C257/C261 Remove the receiver using a tweezers. Figure 22. Using tweezers to remove the receiver Very carefully disconnect the board-to-board connector, ensuring the connector doesn’t exceed a 10° angle. Ensure the connector doesn’t exceed a 10° angle. Figure 23. Disconnecting the board-to-board connector...
  • Page 25 Level 1-2 Service Manual Disassembly Remove the LCD. Figure 24. The LCD Removing and Replacing the Camera Shielding, the Microphone, and the Cam- era Module First, remove the LCD module. Use tweezers to pry off the camera shielding. If you remove the camera shielding, you must replace it with a new one. Figure 25.
  • Page 26 Disassembly C257/C261 Using a camera jig provided by Motorola, carefully pinch and pull out the camera module. Figure 26. Using a camera jig to remove the camera module Pop out the microphone. Figure 27. Removing the microphone July 1, 2005...

  • Page 27: Subscriber Identity Module (Sim) And Identification Label

    The 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 28.
  • Page 28 Subscriber Identity Module (SIM) and Identification Label C257/C261 Table 2: IMEI Number Breakdown Serial Number Check Digit NNXXXXXX ZZZZZZ Where Type Allocation Code, formerly known as Type Approval Code Reporting Body Identifier (BABT or CTIA) XXXXXX Type Identifier (defined by BABT or CTIA)

  • Page 29: Troubleshooting

    Level 1-2 Service Manual Troubleshooting Troubleshooting Manual Test Mode MotorolaC257/C261 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/PCS test SIM must be used. Press and hold to turn the phone OFF.

  • Page 30: C257/C261 Troubleshooting Chart

    Troubleshooting C257/C261 C257/C261 Troubleshooting Chart Table 4: Level 1 and 2 Troubleshooting Chart Symptom Probable Cause Verification and Remedy 1. Phone will not turn on or stay on. a) Battery either discharged or Measure battery voltage across a 50 ohm (>1 defective.

  • Page 31: Programming: Software Upgrade And Flexing

    Level 1-2 Service Manual Troubleshooting Table 4: Level 1 and 2 Troubleshooting Chart (Continue) Symptom Probable Cause Verification and Remedy 7. Phone will not recognize or accept SIM card defective. Check the SIM card contacts for dirt. Clean if SIM card. necessary, and check if fault has been cleared.

  • Page 32: Part Number Charts

    Part Number Charts C257/C261 Part Number Charts Figure 29. C257 Exploded View Diagram July 1, 2005...
  • Page 33 Level 1-2 Service Manual Part Number Charts Figure 30. C261 Exploded View Diagram July 1, 2005...

  • Page 34: Exploded View Parts List

    Part Number Charts C257/C261 Exploded View Parts List Table 5: C257 Exploded View Parts List Item Part Number Description Specification Number 2220602204W ψ ACMG6022-02P28-402 6 -40dB 2240061501W RECEIVER SDRP0615FJ04-F1-G 32ohm AAC 3930408012W SPR-VIB ψ 4*L8 1.3V LA4-459ED COPAL 7630001893W TD018THEE3 128*160 TOPPOLY...
  • Page 35 Level 1-2 Service Manual Part Number Charts Table 6: C261 Exploded View Parts List Item Part Number Description Specification Number 2220602204W ψ ACMG6022-02P28-402 6 -40dB 2240061501W RECEIVER SDRP0615FJ04-F1-G 32ohm AAC 3930408012W SPR-VIB ψ 4*L8 1.3V LA4-459ED COPAL 7630001893W TD018THEE3 128*160 TOPPOLY 2250160802W SPEAKER DMS1608F-06-F2-G 8ohm 16mm AAC...
  • Page 36 Part Number Charts C257/C261 Table 6: C261 Exploded View Parts List Item Part Number Description Specification Number 3037E28001W MID-SPON E28-PU-33.04*25.87 3501775101W SCREW_G PH T5 M1.7*7.5 TP-B KL There is a danger of explosion if the Lithium ion battery pack is replaced incorrectly. Replace only with the same type of battery or equivalent as recommended by the battery manufacturer.

  • Page 37: Accessories

    Level 1-2 Service Manual Part Number Charts Accessories Table 7: List of Accessories Description Part Number Power Solutions Titanium battery 740 mAh Lilon (English label) SNN5733A Titanium battery 740 mAh Lilon (PRC label) SNN5731A Andonised brown battery 740 mAh Lilon (English label) SNN5730A Andonised brown battery 740 mAh Lilon (PRC label) SNN5732A...

  • Page 38: Index

    Level 1-2 Service Manual Index Index About Audience 4 Conventions 5 Scope 4 Accessories and Aftermarket Division 6 Audience 4 Battery Disposal 16 Function 14 Operation 14 Removing and Replacing 16 Battery Gauge 14 Caller Line Identification 10 Controls 11 Conventions 5 Customer Support 5 Disassembly 15...

  • Page 39: July

    Level 1-2 Service Manual Index Left Soft Key 11 Liquid Crystal Display (LCD) 12 Low Battery 14 Mechanical Serial Number 27 Menu Key 11 Menu Navigation 11 Microphone 11 Navigation Key 11 Other Features 10 Out of Box Failure Policy 5 Part Number Charts 32 Parts Replacement 6 Accessories and Aftermarket Division 6...
  • Page 40 Level 1-2 Service Manual Index Tools and Test Equipment 14 Troubleshooting 29 USB Connector Port 11 User Interface 11 User Interface Menu Structure 13 Warranty Service Policy 5 Customer Support 5 Out of Box Failure Policy 5 Product Support 5 July 1, 2005 Index-3...
  • Page 41 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. © 2005 Motorola, Inc.

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C261

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