Level 1-2 Service Manual
C257/C261
Dual Band Wireless Telephone
Rev. 1.03
C257/C261
GSM 900/1800
GSM850/1900
Table of Contents
C257/C261
Table of Contents
Introduction ................................................................................................................................... 3
Product Identification ............................................................................................................ 3
Product Names ..................................................................................................................... 3
Product Changes .................................................................................................................. 3
Regulatory Agency Compliance ........................................................................................... 3
Computer Program Copyrights ............................................................................................. 4
About This Service Manual ................................................................................................... 4
Warranty Service Policy ....................................................................................................... 5
Parts Replacement ............................................................................................................... 6
Specifications (C257/C261) .......................................................................................................... 7
Product Overview .......................................................................................................................... 9
Features ............................................................................................................................... 9
General Functions ....................................................................................................................... 11
Controls, Indicators, and Input/Output (I/O) Connectors .................................................... 11
User Interface Menu Structure ........................................................................................... 13
Battery Function ................................................................................................................. 14
Operation ............................................................................................................................ 14
Tools and Test Equipment ......................................................................................................... 14
Disassembly ................................................................................................................................ 15
Removing and Replacing the Battery ................................................................................. 16
Removing and Replacing the SIM Card ............................................................................. 17
Removing and Replacing the Back Cover, the Vibrator Module, and Various Rubber Bits 17
Removing and Replacing the Transceiver Board, the Keypad, and the Antenna Module .. 21
Removing and Replacing the Keypad PCB ........................................................................ 22
Removing and Replacing the LCD Module ........................................................................ 23
Removing and Replacing the Camera Shielding, the Microphone, and the Camera Module
25
Subscriber Identity Module (SIM) and Identification Label ..................................................... 27
SIM ..................................................................................................................................... 27
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 ........................................................................................................................ 37
Index .....................................................................................................................................Index-1
2
July 1, 2005
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.
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
The model number on a label (usually on the housing) identifies Motorola products. Use the
entire model number when inquiring about the product. Numbers are also assigned to chassis
and kits.
Use these numbers when requesting information or ordering replacement parts.
Product Names
Product names are listed on the front cover. Product names are subject to change without
notice. Some product names, as well as some frequency bands, are available only in certain
markets.
Product Changes
When electrical, mechanical or production changes are incorporated into Motorola products, a
revision letter is assigned to the chassis or kit affected, for example: -A, -B, or -C, and so on.
The chassis or kit number, complete with revision number is imprinted during production. The
revision letter is an integral part of the chassis or kit number and is also listed on schematic
diagrams, and printed circuit board layouts.
Regulatory Agency Compliance
This device complies with Part 15 of the FCC Rules. Operation is subject to the following
conditions:
•
•
This device may not cause any harmful interference, and this device must accept
interference received, including interference that may cause undesired operation
This class B device also complies with all requirements of the Canadian InterferenceCausing Equipment Regulations (ICES-003).Cet appareil numérique de la classe B
respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.
July 1, 2005
3
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. certain exclusive rights to the copyrighted Introduction computer programs, including the
exclusive right to copy, reproduce, modify, decompile, disassemble, and reverse-engineer the
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.
About This Service Manual
Using this service manual and the suggestions contained in it assures proper installation,
operation, and maintenance of C257/C261 telephones. Refer questions about this manual to the
nearest Customer Service Manager. This manual contains mechanical service information
required for the equipment described and is current as of the printing date.
Audience
This document aids service personnel in testing and repairing C257/C261 telephones Service
personnel should be familiar with electronic assembly, testing, and troubleshooting methods,
and with the operation and use of associated test equipment.
Scope
This manual provides basic information relating to C257/C261 telephones, and also provides
procedures and processes for repairing the units at Level 1 and 2 service centers, including:
• Unit swap out
• Repairing of mechanical faults
• Basic modular troubleshooting
• Testing and verification of unit functionality
Initiate warranty claims and send faulty modules to Level 3 or 4 repair centers.
4
July 1, 2005
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. For example, instead of "Press the Menu Key",
you will see "Press M".
Information from a screen is shown in text as similar as possible to what appears in the display.
For example, ALERTS or ALERTS.
Information that you need to type is printed in boldface type.
Warranty Service Policy
The product is sold with the standard 12-month warranty terms and conditions. Accidental
damage, misuse, and extended warranties offered by retailers are not supported under
warranty.
Non-warranty repairs are available at agreed fixed repair prices.
Out of Box Failure Policy
The standard out of box failure criteria applies. Customer phones that fail very early on after
the date of sale are to be returned to Manufacturing for root cause analysis, to guard against
epidemic criteria. Manufacturing to bear the costs of early life failure.
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.
Customer Support
Customer support is available through dedicated Call Centers and in-country help desks.
Product-Service training should be arranged through the local Motorola Support Center.
July 1, 2005
5
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. on your TTY, call: 800-793-7834
Accessories and Aftermarket Division (AAD)
Replacement parts, test equipment, and manuals can be ordered from AAD. For EMEA spare
parts call +49 461 803 1638. For Asia spare parts call +65 648 62995.
6
U.S.A.
Outside U.S.A.
Phone: 800-422-4210
FAX: 800-622-6210
Phone: 847-538-8023
FAX: 847-576-3023
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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
35.04mm, Pixel Resolution:
128(RGB)x160
Sub-LCD
N/A
Band
"EGSM/DCS" or "GSM850/PCS"
Battery
820mAh Li Ion battery
Product type
Candy Bar
Antenna
Internal
Frequency Range (EGSM)
Tx 880-915MHz,
Rx 925-960MHz
Frequency Range (DCS)
Tx 1710-1785MHz,
Rx 1805-1880MHz
Frequency Range (GSM850)
Tx 824-849MHz,
Rx 869-894MHz
Frequency Range (PCS)
Tx 1850-1910MHz,
Rx 1930-1990MHz
Channel Spacing
200KHz
Channels
EGSM 174
DCS 374 channels
Modulation
GMSK at BT=0.3
Transmitter Phase Accuracy
5 degrees RMS, 20 degrees peak
Duplex spacing
45MHz GSM, 95MHz DCS
Frequency Stability
+/- 0.1ppm of downlink frquency (RX)
Operating voltage
3.53V ~ 4.2V
Average Transmit Current
Power Level 5: 280mA,
Power Level 19: 115mA at DTX off
Average Standby Current
DRX2: 6.5mA, DRX9: 3mA
Temperature Range
-20°C to 55°C
July 1, 2005
7
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
Receiver Functions
Specification
Receiver Sensitivity
-107 dBm GSM 850/GSM900
-106 dBm DCS1800/PCS1900
RX Bit Error Rate (100K bits) type II
<2%
Channel Hop Time
500 microseconds
Time to Camp
Approximately 6~10 Second
Speech Coding Functions
8
Specification
Speech Coding Type
Regular pulse excitation/linear predictive
coding with long term prediction (PRE
LPC with LTP)
Bit Rate
13.0 Kbps
Frame Duration
20 ms
Block Length
260 bits
Classes
Class 1 bits =182 bits;
Class 2 bits = 78 bits
Bit Rate with FEC Encoding
22.8 Kbps
July 1, 2005
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. The C257/C261 is a dual-band phone that allows for roaming
within the EGSM900 / DCS1800 or GSM850 / PCS 1900.
C257/C261 telephones support GPRS and SMS in addition to traditional circuit switched
transport technologies. GPRS, where available, provides substantial increases in mobile data
communications performance and the efficient use of radio spectrum. Data transmission rates
for GSM networks can potentially increase from the current rate of 9.6 kbps up to a theoretical
maximum of 171.2 kbps. An increased data rate is by no means the only benefit provided by
GPRS. A key advantage is the provision of a permanent virtual connection to the network. This
"always on" connection is possible because GPRS uses packet data transfer so that, for
example, email can be downloaded in "background mode." There is no need for the user to
reconnect before requesting a service, eliminating connection set-up delays and adding
convenience and immediacy to data services access. The "virtual" nature of this connection
means that network resources are not consumed during periods when a user is not actually
sending or receiving data.
The telephones are made of polycarbonate plastic with a metal enclosure. The display and
speaker, as well as the 17-key keypad, transceiver printed circuit board (PCB), microphone,
charger and headphone connectors, and power button are contained within the candy bar formfactor housing. The user-replaceable 920 mAh Lithium-Ion (Li-Ion) battery provides up to 180
minutes of talk time with up to 250 hours of standby time1. The phone accepts 3V mini
subscriber identity module (SIM) cards that fit into the SIM holder next to the battery. These
telephones feature a 128 x 160 pixel high-resolution color graphics display and an internal
antenna.
Features
C257/C261 telephones use advanced, self-contained, sealed, custom integrated circuits to
perform the complex functions required for GSM GPRS communication. Aside from the space
and weight advantage, microcircuits enhance basic reliability, simplify maintenance, and
provide a wide variety of operational functions.
Features available in this family of telephones include:
•
•
•
•
•
•
•
•
•
•
A 128 x 160 pixel high-resolution color graphics display
Internal antenna
Caller line identification (CLI) (Network, subscription and SIM card or service provider
dependent feature. Not available in all areas.)
Lower voltage technology that provides increased standby and talk times
Extended GSM (EGSM) channels
Tri-coder/decoder (CODEC) that allows full rate, half rate, and enhanced full rate modes of
transmission
Display animation
VibraCall® vibrating alert
5-Way navigation key
Simplified text entry using iTAP™ predictive text entry
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9
Product Overview
C257/C261
•
•
•
•
•
•
•
SIM Toolkit™ Class 2 (STK) (Network, subscription and SIM card or service provider
dependent feature. Not available in all areas.)
Backlight
Speed-, Quick- and One-Touch dialing
Call Forwarding and Holding
Customized Menus
Personal management tools calculator with currency converter, real time clock with date,
reminders, and caller profiling
Other features
Caller Line Identification
Upon receipt of a call, the calling party's phone number is compared to the phone book. If the
number matches a phone book entry, that name will be displayed. If there is no phone book
entry, the incoming phone number will be displayed. In the event that no caller identification
information is available, an incoming call message is displayed.
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™
feature may not be available on the phone in all languages.
SIM Toolkit™ - Class 2
SIM Application Toolkit is a value-added service delivery mechanism that allows GSM
operators to customize the services they offer their customers, from the occasional user who
requests sports news and traffic alerts, to a high call time business user who receives stock
alerts and checks flight times. Operators can now create their own value-added services menu
quickly and easily in the phone.
The customized menu will appear as the first menu and may be updated over-the-air with new
services when customers request them.
Other Features
Detailed descriptions of the other features can be found in the appropriate C257/C261
telephone user guides listed in the Related Publications section at the end of this manual.
10
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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.
Menu Key
Open a menu
when you see
in the display.
Right Soft Key
Perform functions
identified by right
display prompt.
Power/End Key
Press & hold to
turn on/off the
phone.
Press & release
to end phone
calls, exit menu
system.
Navigation Key
Scroll through
lists, set volume.
Power Connector Port
Insert the charger.
Figure 1. Phone Controls
Menu Navigation
C257/C261 telephones are equipped with a simplified icon and graphical-based user interface.
See the table below for details of the C257/C261 menu structure. A five-way navigation key
allows you to move easily through menus and confirm your selection.
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11
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.
GPRS Indicator
Shows when your phone is using a high-speed
General Packet Radio Service (GPRS) network
connection.
Date Indicator
Shows connection status.
Roam Indicator
Shows when your phone is seeking or using a network
outside your home network.
Active Line Indicator
Indicators for dual-line-enabled SIM cards.
Message Indicator
Shows when you receive a new message.
Location indicator
Shows whether Automatic Location Information (ALI)
about your phone is turned on or off.
Ring Style Indicator
Shows the ring style setting.
Battery Level
Indicator
Vertical bars show the battery charge level.
Figure 2. LCD Icons
12
Right Soft Key Label
July 1, 2005
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
Recent Calls
• Received calls
• Dialed Calls
• NotePad
• Call Times
• Call Cost
Message
• Create
• Inbox
• Draft
• Outbox
• Quick Notes
• Voicemail
• Broswer Msgs
• Info Services
• MMS Templates
Office Tools
• Calculator
• MyMenu
• Alarm Clock
• Stop Watch
• Chat
• Dialing Services
• IM
Games & Apps
Web Access
Start Browser
Web Shortcut
Go to URL
Browser Setting
Stored Pages
History
General Setting
Multimedia
• Pictures
• Sounds
• Camera (For C261)
Personalise
• Home Screen
• Main Menu
• Colour Setting
• Greeting
• Wallpaper
• Screen Saver
• Quick Dial
Settings
• Ring Style
• Call Forward
• In Call Setup
• Initial Setup
• Phone Status
• Headset
• Network
• Security
•
•
•
•
•
•
•
* Optional Network, SIM card, or subscription-dependent features.
Figure 3. Telephone Menu Structure
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13
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).
Note: 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.
If the battery is removed while receiving a message, the message is lost.
To ensure proper memory retention, turn the phone OFF before removing the battery.
Immediately replace the old battery with a fresh battery.
Operation
For detailed operating instructions, refer to the appropriate User Guide listed in the Related
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
Motorola Part Number1
Application
See Table 6
Charger
Used to charge battery and power phone
0180386A82
Antistatic Mat Kit (includes 66-80387A95
antistatic mat, 66-80334B36 ground
cord, and 42-80385A59 wrist band)
Provides protection from damage to
phone caused by electrostatic discharge
(ESD)
Antistatic Gloves
Provides protection from damage to
phone caused by electrostatic discharge
(ESD)
8102430Z04
GSM / DCS / PCS Test SIM
Used to enable manual test mode
6680388B67
Disassembly tool, plastic with flat and
pointed ends (manual opening tool)
Used during assembly/disassembly
6680388B01
Tweezers, plastic
Used during assembly/disassembly
-
T5 screw driver
Used with screw driver
-
camera jig
Used to remove a built-in camera
(where present)
-
14
Description
July 1, 2005
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.
Figure 4. A screwdriver (T5), a pair of tweezers, and a camera jig
Note: This particular camera requires a unique camera jig (pictured on the far right) for disassembly of the camera, where present. You can order this tool from Motorola using the information presented above in Footnote 1.
Disassembly
Many of the integrated devices used in this phone are vulnerable to damage from electrostatic
discharge (ESD). Ensure adequate static protection is in place when handling, shipping, and
servicing any internal components.
Avoid stressing the plastic in any way to avoid damage to either the plastic or internal
components.
July 1, 2005
15
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.
Press the battery cover release button and then pull it away.
Figure 5. Opening the battery cover
3.
Next, pull the battery up and away from the battery compartment.
Figure 6. 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.
Dispose of used batteries according to the manufacturer's instructions.
16
July 1, 2005
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.
Remove six T5 screws securing the back cover to the front.
Figure 8. Removing 6 T5 screws (Torque Force = 1.2 kgf-cm)
July 1, 2005
17
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.
18
July 1, 2005
Level 1-2 Service Manual
Disassembly
6.
Remove the side rubber.
Figure 12. The side rubber
7.
Remove the LED rubber.
Figure 13. The LED rubber
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19
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. The speaker rubber
20
July 1, 2005
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. The rubber keypad
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21
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. Removing the side brackets
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July 1, 2005
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. Removing the LCD holder
July 1, 2005
23
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. Disconnecting the board-to-board connector
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July 1, 2005
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. Using tweezers to pry off the camera shielding
July 1, 2005
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. Removing the microphone
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July 1, 2005
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).
The SIM contains:
•
•
•
All the data necessary to access GSM services
The ability to store user information such as phone numbers
All information required by the network provider to provide access to the network
Identification
Each Motorola GSM phone is labeled with a variety of identifying numbers. The following
information describes the current identifying labels.
Mechanical Serial Number (MSN)
•
•
•
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.
MSN 10 Digits
3 Digits
1 Digit
2 Digits
4 Digits
APC
DC
DC
SNR
Account Product Code
i.e. StarTAC™ Phone130
Distribution Center
i.e. Easter Inch
Date Code: Year and
Month of Shipment
Unit's individual serial
number
Figure 28. MSN Divisions
International Mobile Station Equipment Identity (IMEI)
The International Mobile Station Equipment Identity (IMEI number is an individual number
unique to the Transceiver and is stored within the unit's memory. The IMEI uniquely identifies
an individual mobile station and thereby provides a means for controlling access to GSM
networks based on mobile station types or individual units. The full IMEI structure is listed in
the table below.
July 1, 2005
27
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.
Phase 2 & 2+= check digit and is defined as a function of
all other IMEI digits
Other label number configurations present are:
•
•
28
TRANSCEIVER NUMBER: Identifies the product type. Normally the SWF number. (i.e.
V100).
PACKAGE NUMBER: Identifies the equipment type, mode, and language in which the
product is shipped.
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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.
Remove the customer’s SIM card from the phone as described in the procedures.
Insert the test SIM into the SIM slot.
Replace the battery as described in the procedures.
Press and hold
to turn the phone ON.
Manual Test Mode Commands
Table 3: Manual Test Commands
Key Sequence
Test Function/Name
#02#
Handset information
#03#
RF information
#04#
ADC information
#08#
Engineer Field Test Mode
#09#
Simple Test mode
**0102#
FFS format
**0105#
Disable EFEM mode
*#06#
Remarks
IMEI number
July 1, 2005
29
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.
b) Battery terminals open or
misaligned.
Visually inspect the battery terminals on both
the battery and the phone. Realign and, if
necessary, either replace battery or refer to a
Level 3 Service Center for the battery
connector replacement. If battery terminals
are not at fault, proceed to c.
c) Keypad defective.
Replace the keypad. Temporarily connect a
+3.6 Vdc supply to the battery terminals.
Press and hold the PWR button. If phone
turns on and stays on, disconnect the dc
power source and reassemble with the new
keypad.
2. Phone exhibits poor reception or
erratic operation such as calls frequently
dropping or weak or distorted audio.
Connections to or from lower PCB
defective.
Check connection between the antenna and
the lower PCB.
3. Display is erratic, or provides partial
or no display.
LCM defective.
Replace the LCM. Verify that the fault has
been cleared and reassemble the phone with
the new LCM.
4. Incoming call alert transducer audio
distorted or volume is too low.
Speaker defective.
Replace the speaker as described in the
procedures. Verify that the fault has been
cleared and reassemble the phone with the
new speaker.
5. Phone transmit audio is weak.
(usually indicated by called parties
complaining of difficulty in hearing
voice).
Microphone defective.
Replace the microphone as described in the
procedures. Verify that the fault has been
cleared and reassemble the phone with the
new microphone.
6. Receive audio from earpiece speaker
is weak or distorted.
a) Connections to or from lower
PCB defective.
Check connection between the antenna and
the lower PCB. If the connection is OK,
proceed to b.
b) Earpiece Speaker defective.
Temporarily replace the earpiece speaker
with a known good earpiece speaker. Ensure
good connection. Place a call and verify
improvement in earpiece audio. If fault is
cleared, reassemble the phone with the good
earpiece speaker.
30
July 1, 2005
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.
8. Keypad not functioning.
Keypad defective.
Use alcohol to wipe the keypad metal dome.
Check if fault has been cleared. If the fault is
still present, either replace the keypad or
refer to a Level 3 Service Center for the
keypad metal dome replacement.
9. Vibrator feature not functioning.
a) Vibrator faulty.
Check general condition of vibrator. If it is
good, proceed to b.
b) Vibrator defective.
Replace the defective vibrator.
a) Headset plug not fully pushed.
Ensure the headset plug is fully seated in
thejack. If the seated is OK, proceed to b.
b) Headset defective.
Temporarily replace the headset with a
known good headset. Ensure good seated.
Place a call and verify improvement in
headset audio. If fault is cleared, replace the
defective headset.
Camera module defective.
Replace the camera module as described in
the procedures. Verify that the fault has been
cleared and reassemble the phone with the
new camera module.
10. No or weak audio when using
headset.
11. Camera module not functioning. (for
C261)
Programming: Software Upgrade and Flexing
Contact your local technical support engineer for information about equipment and procedures
for flashing and flexing.
July 1, 2005
31
Part Number Charts
C257/C261
Part Number Charts
Figure 29. C257 Exploded View Diagram
32
July 1, 2005
Level 1-2 Service Manual
Part Number Charts
Figure 30. C261 Exploded View Diagram
July 1, 2005
33
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 1.3V 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
051
82E5803301W
LABEL
E58 WATERPROOF LABEL φ4mm
251
6910653321N
F/WMB 33
E28 GA-076
252
6320400001N
SMT MMI
E30 GS-047
300
5501063001N
ME/PT 33
E28 SILVER
301
3062E28001W
NAMEPLATE
E28-PC-BLACK
302
2545E28001W
MARK
E28-ABS-SILVER-M-LOGO
303
2541E28001W
LCD-LENS
E28-PMMA-CLEAR BLACK
304
2511E28001W
UPP-ASSY
E28-SILVER
305
254AE28001W
LED-LENS
E28-RUBBER-WHITE
306
302BE28001W
RUBBERPAD
E28-TPU-BLACK-AUDIO-DC
307
3104E28011W
DIAL-KEY
E28-P+R-BLACK-E-21KEY
308
3109E28001W
MET-DOME
E28-φ4*170g-21KEY
309
3012E28001W
SHIELDASY
E28-LCD SHIELD+SPONGE ASSY
310
3052E28006W
SHIELD-C
E28-SUS304-13*3*0.2T-LOCK
311
2531E28001W
MID-CASE
E28-NYLON+GF-BLACK
312
3052E28003W
SHIELD-C
E28-SUS301-37.4*35.2*0.15T-RF
313
3052E28004W
SHIELD-C
E28-SUS304-29.9*24.4*0.15T-BB
314
302FE28001W
SPK-GASKE
E28-RUBBER-30.9*37.3*6.65
315
3061E28001W
DUST-PRO
E28-FELT-20.8*19.3
316
2512E28001W
LOW-ASSY
E28-SILVER
319
3037E28001W
MID-SPON
E28-PU-33.04*25.87
350
3501775101W
SCREW_G
PH T5 M1.7*7.5 TP-B KL
July 1, 2005
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*5.3 CHICONY
051
82E5803301W
LABEL
E58 WATERPROOF LABEL φ4mm
251
6910653301W
F/WMB 33
E30 GA-076
252
6320400001W
SMT MMI
E30 GS-047
300
5501083331W
ME/PT 33
E30/E30A RED
301
3062E30001W
NAMEPLATE
E30-PC-BLACK
302
2545E28001W
MARK
E28-ABS-SILVER-M-LOGO
303
2541E28001W
LCD-LENS
E28-PMMA-CLEAR BLACK
304
2511E28002W
UPP-ASSY
E28-RED
305
254AE28001W
LED-LENS
E28-RUBBER-WHITE
306
302BE28001W
RUBBERPAD
E28-TPU-BLACK-AUDIO-DC
307
3104E28011W
DIAL-KEY
E28-P+R-BLACK-E-21KEY
308
3109E28001W
MET-DOME
E28-φ4*170g-21KEY
309
3012E28001W
SHIELDASY
E28-LCD SHIELD+SPONGE ASSY
310
3052E28006W
SHIELD-C
E28-SUS304-13*3*0.2T-LOCK
311
2531E28001W
MID-CASE
E28-NYLON+GF-BLACK
312
3052E28003W
SHIELD-C
E28-SUS301-37.4*35.2*0.15T-RF
313
3052E28004W
SHIELD-C
E28-SUS304-29.9*24.4*0.15T-BB
314
302FE28001W
SPK-GASKE
E28-RUBBER-30.9*37.3*6.65
315
3061E28001W
DUST-PRO
E28-FELT-20.8*19.3
316
2512E30004W
LOW-ASSY
E30-RED
317
3052E30001W
SHIELD-C
E30-R41-8650-CMOS
318
3068E30001W
GASKET
E30-RUBBER-φ8*2.08-CMOS
July 1, 2005
35
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.
To order parts please use the following Link:
https://servicelink3.motorola.com
(Password is required)
For information on ordering parts please contact EMEA at +49 461 803 1638.
36
July 1, 2005
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
Klaus adaptor - Aus/NZ plug
SYN8127A
Audio & Connectivity
One touch headset
SYN8419B
Black mono headset
SYN8390B
Silver mono headset
AAYN4264B
Cheerful pink universal FM stereo headset
CHYN4391B
Zest blue universal FM stereo headset
CHYN4392B/C
Psuedo USB data cable
CHKN4565A
Mobile phone tools CD-ROM
9988076Z02
Consumer Personalization
Silver lanyard (rest of Asia)
AAYN4402
Silver lanyard (PRC)
CHYN4546
Silver wristyard (rest of Asia)
AAYN4403
Carrying case & lanyard
TBD
July 1, 2005
37
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
Number Breakdown 27
July 1, 2005
Index-1
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 Support 5
R
Right Soft Key 11
S
Scope 4
Send/Answer Key 11
SIM Card 27
Identification Label 27
International Mobile Station Equipment Identity (IMEI) 27
Mechanical Serial Number 27
Removing and Replacing 17
SIM Toolkit™ - Class 2 10
Simplified Text Entry 10
Specifications 7
July 1, 2005
Index-2
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
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All other product or service names are the property of their respective owners.
® Reg. U.S. Pat. & Tm. Off.
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