Level 1-2 Service Manual C257/C261 Dual Band Wireless Telephone Rev. 1.
Table of Contents C257/C261 Table of Contents Introduction ................................................................................................................................... 3 Product Identification ............................................................................................................ 3 Product Names ..................................................................................................................... 3 Product Changes .................................
Level 1-2 Service Manual Introduction Introduction Motorola® Inc. maintains a worldwide organization that is dedicated to provide responsive, full-service customer support. Motorola products are serviced by an international network of company-operated product care centers as well as authorized independent service firms. Available on a contract basis, Motorola Inc. offers comprehensive maintenance and installation programs that enable customers to meet requirements for reliable, continuous communications.
Introduction C257/C261 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.
Level 1-2 Service Manual Introduction Conventions Special characters and typefaces, listed and described below, are used in this publication to emphasize certain types of information. Note: Emphasizes additional information pertinent to the subject matter. Caution: Emphasizes information about actions that may result in equipment damage. Warning: Emphasizes information about actions that may result in personal injury. M Keys to be pressed are represented graphically.
Introduction C257/C261 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. In the U.S.A., to contact Motorola, Inc.
Level 1-2 Service Manual Specifications (C257/C261) Specifications (C257/C261) General Functions Specification Dimensions 109.85*49.95*14.95mm Weight 93g External LCD 65K color TFT, Active area 28.032 x 35.
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.
Level 1-2 Service Manual Product Overview Product Overview The Motorola C257/C261 features a global system for mobile communications wireless interface and general packet radio service (GPRS) transport technology. It also features a simplified icon and graphical user interface (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.
Product Overview C257/C261 • • • • • • • SIM Toolkit™ Class 2 (STK) (Network, subscription and SIM card or service provider dependent feature. Not available in all areas.
Level 1-2 Service Manual 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. Earpiece Listen to your voice calls & messages. Left Soft Key Perform functions identified by left display prompt. Send/Answer Key Make & answer calls. Press in idle screen to see the recently dialed calls.
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. Date Home Screen Display Clock Left Soft Key Label Icon Menu indicator Name Description Signal Strength Indicator Vertical bars show the strength of the network connection.
Level 1-2 Service Manual General Functions User Interface Menu Structure The table below shows a portion of the C257/C261 telephone menu structure.
Tools and Test Equipment C257/C261 Battery Function The telephone displays a battery charge indicator icon in the idle screen to indicate the battery charge level. The gauge shows four levels: 100%, 66%, 33%, and Low Battery. Removing the battery causes the phone to shut down immediately and loose any pending work (partially entered phone book entries or outgoing messages, for example).
Level 1-2 Service Manual Disassembly Table 1: General Test Equipment and Tools Motorola Part Number1 HP34401A2 Description Digital Multimeter Application Used to measure battery voltage 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. 2. Not available from Motorola. To order, contact Hewlett Packard at (800) 452-4844.
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. 1. 2. Ensure the phone is turned off.
Level 1-2 Service Manual Disassembly 4. 5. 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 1. 2. First, remove the battery. Slide out the SIM card from the SIM card bracket. Figure 7. Removing the SIM card Removing and Replacing the Back Cover, the Vibrator Module, and Various Rubber Bits 1. 2. First, remove the SIM Card.
Disassembly C257/C261 3. Pry away the back cover from the top left corner. Figure 9. Prying open the back cover 4. Remove the vibrator module from the inside of the back cover. Figure 10. Removing the vibrator module 5. Pry out the speaker. Figure 11. Removing the speaker If you remove the sponge from the back cover, you must replace it with a new one.
Level 1-2 Service Manual Disassembly 6. Remove the side rubber. Figure 12. The side rubber 7. Remove the LED rubber. Figure 13.
Disassembly C257/C261 8. Remove the camera rubber. Figure 14. The camera rubber 9. Remove the speaker rubber. Take precaution to avoid damaging the speaker connector. Figure 15.
Level 1-2 Service Manual Disassembly Removing and Replacing the Transceiver Board, the Keypad, and the Antenna Module 1. 2. First, remove the back cover, the vibrator module, and various rubber bits. Pry out the transceiver board. Figure 16. Removing the transceiver board 3. Remove the rubber keypad from the front housing. Figure 17.
Disassembly C257/C261 4. Gently pry the antenna module away from the transceiver board. Figure 18. Removing the antenna module Removing and Replacing the Keypad PCB 1. 2. First, remove the transceiver board, the keypad, and the antenna module. Pry off the two PCB side brackets. Figure 19.
Level 1-2 Service Manual Disassembly 3. Pry off the keypad PCB. Figure 20. Removing the keypad PCB Removing and Replacing the LCD Module 1. 2. First, remove the keypad PCB. Remove the LCD holder. Figure 21.
Disassembly C257/C261 3. Remove the receiver using a tweezers. Figure 22. Using tweezers to remove the receiver 4. 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.
Level 1-2 Service Manual Disassembly 5. Remove the LCD. Figure 24. The LCD Removing and Replacing the Camera Shielding, the Microphone, and the Camera Module 1. 2. 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.
Disassembly C257/C261 3. 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 4. Pop out the microphone. Figure 27.
Level 1-2 Service Manual Subscriber Identity Module (SIM) and Identification Label Subscriber Identity Module (SIM) and Identification Label SIM A SIM is required to access the existing local GSM network, or remote networks when traveling (if a roaming agreement has been made with the provider).
Subscriber Identity Module (SIM) and Identification Label C257/C261 Table 2: IMEI Number Breakdown TAC NNXXXXXX Serial Number ZZZZZZ Check Digit A Where TAC Type Allocation Code, formerly known as Type Approval Code NN Reporting Body Identifier (BABT or CTIA) XXXXXX Type Identifier (defined by BABT or CTIA) ZZZZZZ Individual unit serial number A Phase 1 = 0.
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. 1. 2. 3. 4. 5. 6. Press and hold to turn the phone OFF. Remove the battery as described in the procedures.
Troubleshooting C257/C261 C257/C261 Troubleshooting Chart Table 4: Level 1 and 2 Troubleshooting Chart Symptom 1. Phone will not turn on or stay on. Probable Cause Verification and Remedy a) Battery either discharged or defective. Measure battery voltage across a 50 ohm (>1 Watt) load. If the battery voltage is <3.25 Vdc, recharge the battery using the appropriate battery charger. If the battery will not recharge, replace the battery. If battery is not at fault, proceed to b.
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. SIM card defective. Check the SIM card contacts for dirt. Clean if necessary, and check if fault has been cleared. If the contacts are clean, insert a known good SIM card into the phone. Power up the phone and confirm that the card has been accepted. If the fault no longer exists, replace the defective SIM card.
Part Number Charts C257/C261 Part Number Charts Figure 29.
Level 1-2 Service Manual Part Number Charts Figure 30.
Part Number Charts C257/C261 Exploded View Parts List Table 5: C257 Exploded View Parts List Item Number 34 Part Number Description Specification 001 2220602204W MIC ACMG6022-02P28-402ψ 6 -40dB 002 2240061501W RECEIVER SDRP0615FJ04-F1-G 32ohm AAC 003 3930408012W SPR-VIB ψ4*L8 1.
Level 1-2 Service Manual Part Number Charts Table 6: C261 Exploded View Parts List Item Number Part Number Description Specification 001 2220602204W MIC ACMG6022-02P28-402 ψ6 -40dB 002 2240061501W RECEIVER SDRP0615FJ04-F1-G 32ohm AAC 003 3930408012W SPR-VIB ψ4*L8 1.3V LA4-459ED COPAL 004 7630001893W LCM TD018THEE3 128*160 TOPPOLY 005 2250160802W SPEAKER DMS1608F-06-F2-G 8ohm 16mm AAC 006 2301E28001W I-ANTENNA E28 ANT+HOLDER EU 007 7650561001W CMOS SENS CM-5610 VGA 6*6*5.
Part Number Charts C257/C261 Table 6: C261 Exploded View Parts List Item Number Part Number 319 3037E28001W MID-SPON E28-PU-33.04*25.87 350 3501775101W SCREW_G PH T5 M1.7*7.5 TP-B KL Description Specification 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. Dispose of used batteries according to the manufacturer's instructions.
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 Switchmode charger - US plug SPN5150A Switchmode charger SPN5151A Switchmode charger - HK plug SPN5152A Klaus adaptor - Euro plug SYN7456A
Level 1-2 Service Manual Index Index A About Audience 4 Conventions 5 Scope 4 Accessories and Aftermarket Division 6 Audience 4 B Battery Disposal 16 Function 14 Operation 14 Removing and Replacing 16 Battery Gauge 14 C Caller Line Identification 10 Controls 11 Conventions 5 Customer Support 5 D Disassembly 15 E Electrostatic Discharge 15 G General Functions 11 H Headset Connector Port 11 I Indicators 11 Input/Output (I/O) Connectors 11 International Mobile Station Equipment Identity (IMEI) 27 Numb
Level 1-2 Service Manual Index L Left Soft Key 11 Liquid Crystal Display (LCD) 12 Low Battery 14 M Mechanical Serial Number 27 Menu Key 11 Menu Navigation 11 Microphone 11 N Navigation Key 11 O Other Features 10 Out of Box Failure Policy 5 P Part Number Charts 32 Parts Replacement 6 Accessories and Aftermarket Division 6 Power Connector Port 11 Power/End Key 11 Product Overview 9 Caller Line Identification 10 Features 9 Other Features 10 SIM Toolkit™ - Class 2 10 Simplified Text Entry 10 Product Suppo
Level 1-2 Service Manual Index T Tools and Test Equipment 14 Troubleshooting 29 U USB Connector Port 11 User Interface 11 User Interface Menu Structure 13 W Warranty Service Policy 5 Customer Support 5 Out of Box Failure Policy 5 Product Support 5 July 1, 2005 Index-3
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. All rights reserved.
