Level 1-2 Service Manual
EM325
Dual-Band Wireless Telephone
EM325
GSM 900/1800 or 850/1900/MHz
Table of Contents
EM325
EM325Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Product Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Product Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Product Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Regulatory Agency Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Computer Program Copyrights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
About This Service Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Warranty Service Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Parts Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
General Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Controls, Indicators, and Input/Output (I/O) Connectors . . . . . . . . . . . . . . . . . . . . . . . .13
User Interface Menu Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Alert Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Battery Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Tools and Test Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Removing and Replacing the Battery Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Removing and Replacing the Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Removing and Replacing the Lower Housing Cover . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Removing and Replacing the Main PCBA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Removing and Replacing the Keypad and Hinge Module . . . . . . . . . . . . . . . . . . . . . . .28
Removing and Replacing the Board to Board FPC . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Removing and Replacing the Camera/Vibrator Flex module and Receiver . . . . . . . . .30
Removing and Replacing the LCM Module, Upper PCBA and Speaker . . . . . . . . . . . .31
Removing and Replacing the Antenna Carrier and Audio Jack . . . . . . . . . . . . . . . . . .32
Subscriber Identity Module (SIM) and Identification Label . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
SIM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Manual Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Manual Test Mode Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Programming: Software Upgrade and Flexing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Part Number Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Related Publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Exploded View Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Exploded View Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
2
July 15, 2008
Level Service Manual
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
July 15, 2008
3
Introduction
Introduction
Motorola® Inc. maintains a worldwide organization that is dedicated to provide responsive, fullservice 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 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 a label usually located under the
battery. 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 Interference-Causing
Equipment Regulations (ICES-003).
Cet appareil numérique de la classe B respecte toutes les exigences du Règlement sur le matériel
brouilleur du Canada.
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 computer programs, including the exclusive right
to copy, reproduce, modify, decompiler, 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
4
July 15, 2008
Level Service Manual
Introduction
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 EM325 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 EM325 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 EM325 telephones, and also to provide
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.
July 15, 2008
5
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 which may result in equipment damage.
Warning: Emphasizes information about actions which may result in personal injury.
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
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 PCB 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.
6
July 15, 2008
Level Service Manual
Introduction
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.
U.S.A.
Outside U.S.A.
Phone: 800-422-4210
Phone: 847-538-8023
FAX: 800-622-6210
FAX: 847-576-3023
For EMEA spare parts call +49 461 803 1638.
For Asia spare parts call +65 648 62995.
July 15, 2008
7
Specifications
Specifications
General Function
Specification
Frequency Range DCS 850
824-849 MHz Tx
869-894 MHz Rx
Frequency Range DCS 900
880-915 MHz Tx
925-960 MHz Rx
Frequency Range DCS 1800
1710-1785 MHz Tx
1805-1880 MHz Rx
Frequency Range DCS 1900
1850-1910 MHz Tx
1930-1990 MHz Rx
Channel Spacing
200KHz
Channels
EGSM 174/DCS 374/ PCS 299/ GSM 850
(Carrier with 8 channel per carrier
Modulation
GMSK at BT= 0.3
Transmitter Phase Accuracy
≦ 5 degrees RMS, 20 degrees peak
Duplex Spacing
45 MHz (GSM850, GSM 900), 95 MHz
(DCS1800), 80MHz (PCS 1900)
Frequency Stability
± 0.10 ppm
Operating Voltage
+ 3.4V dc to + 4.2V dc (battery)
Transmit Current Drain
180 mA average talk current drain
Standby Current Drain
4.2 mA (DRX2), 2.1 mA (DRX9)
Temperature Range
-10℃ to 55℃ (15℉ to 130℉)
Dimensions
L 100.99mm x W46mm x H13.9mm
Weight
90 g
Battery Life, with standard 780
mAh Li-Ion Battery
GSM
Voice call: 250 mins
Standby DRX5 = 288 hrs
All talk and standby times are approximate
and depend on network configuration, signal
strength, and features selected.
Standby time are guoted at DRX=5
Talk time are quoted with DTX ON
Battery Charge time
4 hours to 90% of 780 mAh capacity
Alert Volume
Max 95 dB @ 5 cm, 0.5 watts input
Transmitter Function
8
Specification
July 15, 2008
Level Service Manual
Specifications
RF Power Output
32.8 dBm nominal EGSM 900/
29.0 dBm nominal DCS 1800/
32.2 dBm nominal GSM 850/
30.0 dBm nominal PCS 1900/
Output Impedance
50 ohms nominal
Spurious Emissions
≦ -36 dBm from 0.1 to 1 GHz, -30 dBm from
1 to 4 GHz
Receiver Function
Specification
Receive Sensitivity
GSM:-108 dBm
DSC:-108 dBm
Rx Bit Error Rate (100k bits)
Type II
≦ 2%
Speech Coding Function
Specification
Speech Coding Type
Regular pulse excitation/Linear predictive
coding with long term prediction (RPE LPC
with LTP)
Bit Rate
13.0 kbps
Frame Duration
20 ms
Block Length
260 bits
Classes
Class 1 bit = 182 bits/Class 2 bits = 78 bits
Bit Rate with FEC Encoding
22.8 kbps
July 15, 2008
9
Product Overview
Product Overview
Motorola EM325 mobile telephones feature global system for mobile communications (GSM)
air interface, general packet radio service (GPRS) transport technology, and wireless application
protocol (WAP) Internet browser. The mobile telephone uses a simplified icon and graphicalbased user interface (UI) for easier operation, allows short message service (SMS) text
messaging, and include clock, alarm, datebook, calculator, and caller profiling personal
management tools. The EM325 is a dual-band phone that allows roaming within the 900 MHz
and digital cellular system (DCS) 1800 MHz, or GSM 850/personal communication system
(PCS) 1900 MHz, depends on hardware.
EM325 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 poly carbonate plastic. The display and speaker, as well as the 23key keypad, transceiver printed circuit board (PCB), microphone, charger and headphone
connectors, and power button are contained within the slider form-factor housing. The userreplaceable 750 mAh Lithium Ion (LiIon) battery provides up to 497 minutes of talk time with
up to 250 hours of standby time1. The phone accepts 3V mini subscriber identity module (SIM)
cards which fit into the SIM holder under the battery. These telephones feature a 128 x 160 pixel
high-resolution color graphics display and an internal antenna.
Features
EM325 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:
• Bluetooth 2.0, Class 2, A2DP
• Office quality speakerphone
• PIM ( phone & date book, calculator, alarm)
• Messaging - SMS, MMS
• iTAP v5.5.5 (predictive text)
• Audio - MP3, AAC
• Connectivity - EMU (USB charging)
• USB 2.0 FS
• 3.5 mm headset wired Audio
• Native Music Player
• WAP 2.0
• Java MIDP 2.0
• OMA V1.0 DRM
• Moto ID
1. All talk and standby times are approximate and depend on network configuration, signal strength, and features selected.
Standby times are quoted as a range from DRX=2 to DRX=9. Talk times are quoted as a range from DTX off to DTX on.
10
July 15, 2008
Level Service Manual
Product Overview
Wireless Access Protocol (WAP) 2.0 Compliancy
In the WAP environment, access to the Internet is initiated in wireless markup language (WML),
which is derived from hypertext markup language (HTML). The request is passed to a WAP
gateway which retrieves the information from the server in standard HTML (subsequently
filtered to WML) or directly in WML if available. The information is then passed to the mobile
subscriber via the mobile network. The EM325’s microbrowser can be configured for baud, idle
timeout, line type, phone number, and connection type.
Bitmap image data will download as text. If the image is larger than the screen,only part of the
image will display.
If the user receives a call while in browser mode, the browser will pause and allow the user to
resume after completing the call.
Simplified Text Entry
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.
Caller Line Identification
Upon receipt of a call, the calling party’s phone number is compared to the phonebook. If the
number matches a phonebook entry, that name will be displayed. If there is no phonebook entry,
the incoming phone number will be displayed. In the event that no caller identification
information is available, an incoming call message is displayed.
User must subscribe to a caller line identification service through their service provider.
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.
Personal Information Management
The EM325 telephone contains a built-in calendar with datebook reminders and phonebook.
Other Features
Detailed descriptions of the other features can be found in the appropriate EM325 telephone user
guides listed in the Related Publications section toward the end of this manual.
July 15, 2008
11
General Operation
General Operation
Controls, Indicators, and Input/Output (I/O) Connectors
The EM325 telephones’ controls are located on the front and side of the device, and on the
keyboard as shown in Figure 1. Indicators, in the form of icons, are displayed on the LCD (see
Figure 2).
Figure 1. EM325 Telephone Controls Locations
12
July 15, 2008
Level Service Manual
General Operation
Menu Navigation
EM325 telephones are equipped with a simplified icon and graphical-based user interface. The
phone also features 6 user-definable shortcuts to menu options that are accessed by pressing the
soft keys and 4-way navigation key. A 4-way navigation key allows you to move easily through
menus. Left soft key lets you confirm your selection. When the up/down side key (voice
activation key) is held down from a idle display, provides a shortcut to voice dialing and voice
feature launcher.
Liquid Crystal Display (LCD)
The LCD provides an 832 square millimetre multicolor backlit color display with user-adjustable
contrast settings for optimum readability in all light conditions. The large bit-mapped 128 x 128
pixel display includes up to 4 lines of text, 1 line of icons, and 1 line of prompts.
Display animation makes the phone’s icon menu move smoothly as the user scrolls up and down.
Whether a phone displays all indicators depends on the programming and services to which
the user subscribes.
July 15, 2008
13
General Operation
Figure 2 shows some common icons displayed on the LCD.
14
July 15, 2008
Level Service Manual
General Operation
Figure 2. EM325 Display Icon Indicators
Alert Settings
In addition to 64 preset ring tones, EM325 telephones allow the user to download 5 additional
ring tones via GPRS. (Availability is carrier and Network dependant). Motorola EM325 phones
incorporate the VibraCall® discreet vibrating alert that helps to avoid disturbing others when a
ringing phone is unacceptable. Alerts can be set to ring only, vibrate only, vibrate then ring, or
no ring or vibrate. Additionally, the profiling feature allows users to identify incoming calls by
a specific ringer tone.
July 15, 2008
15
General Operation
Battery Function
Battery Charge Indicator
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.
Battery Removal
Removing the battery causes the phone to shut down immediately and loose any pending work
(partially entered phonebook entries or outgoing messages, for example).
All batteries can cause property damage and/or bodily injury such as burns if a conductive
material such as jewelry, keys, or beaded chains touch 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.
16
July 15, 2008
Level Service Manual
Tools and Test Equipment
Tools and Test Equipment
Table 1 lists the tools and test equipment used on EM325 telephones. Use either the listed items
or equivalents.
Table 1. General Test Equipment and Tools
Motorola Part Number1
Description
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)
8102430Z04
GSM/DCS 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
RSX4043-A
Torque Driver
Used to remove and replace screws
---
Torque Driver- Cross
Used to remove and replace screws
—
Torque Driver Bit T-5 Plus, Apex 440-6IP
Torx Plus or equivalent
Used with torque driver
Digital Multimeter
Used to measure battery voltage
HP34401A2
1. To order in North America, contact Motorola Aftermarket and Accessories Division (AAD) by phone at (800) 814-0601 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.
July 15, 2008
17
Disassembly
Disassembly
This section describes how to disassemble an EM325 telephone. Tools and equipment used are
listed in Table 1, preceding.
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.
Removing and Replacing the Battery Door
1.
2.
Press and push the battery door forward to the direction illustrated in Figure 3.
Completely remove the battery door.
Figure 3. Removing the Battery Door
18
July 15, 2008
Level Service Manual
Disassembly
3.
To replace, align the battery door to the lower housing in Figure 4. Slide the battery door
in the direction shown until it clicks into place and hear a click sound. Then completely
replace the battery door.
Figure 4. Replacing the Battery Door
July 15, 2008
19
Disassembly
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 touch 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.
Remove the battery door as described in the procedures.
Raise and remove the battery at the direction illustrated in the Figure 5.
Figure 5. 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.
3.
To replace, insert battery with 90 degree angle into handset and press battery downward.
Make sure the battery latch can lock battery.
Figure 6. Replacing the Battery
20
July 15, 2008
Level Service Manual
Disassembly
4.
Replace the battery door as described in the procedures.
Removing and Replacing the Lower Housing Cover
1.
2.
Remove the battery door and battery as described in the procedures.
Sequentially remove 6 screws with a 6-corner-star T5 screwdriver as shown in Figure 7.
Figure 7. Removing 6 Screws
July 15, 2008
21
Disassembly
3.
Release the 3 hooks between Case D and Hinge which shown in Figure 8 by pushing the
edge of Case D outward then pull up.
Figure 8. Removing the 3 hooks
4.
Insert the plastic tool between Case K and keypad to separate Case D in Figure 9.
Figure 9. Removing the Lower Housing Cover
22
July 15, 2008
Level Service Manual
Disassembly
5.
To Replace, align the earphone jack to the lower housing as in Figure 10.
Figure 10. Replacing the Lower Housing Cover
6.
Press the lower housing cover into place, allowing the 3 housing latches indicate in the
Figure 11 to snap into position.
Figure 11. Replacing the Lower Housing Cover
7.
Replace the battery and battery door as described in the procedures.
July 15, 2008
23
Disassembly
Removing and Replacing the Main PCBA
1.
2.
Remove the battery door, battery, and lower housing cover as described in the procedures.
Release the 4 hooks as indicate in the Figure 12.
Figure 12. Removing the Main PCBA
3.
Slide the hinge around 1 cm then pull the Main PCBA to the direction as Figure 13.
Figure 13. Slide the Hinge
24
July 15, 2008
Level Service Manual
Disassembly
4.
Turn the Main PCBA over. Release the FPC connector to remove the Main PCBA.
Figure 14. Releasing the Board to Board FPC
5.
To replace, slide the hinge 1 cm to pull out the board to board FPC
Figure 15. Pull out the board to board FPC
July 15, 2008
25
Disassembly
6.
Place the Keypad on the right hand side. Bend over the FPC to inset to the FPC connector
of the Main PCBA.
Figure 16. Inserting the board to board FPC
7.
slider the hinge back to place the Main PCBA to align to the hook of hinge. Press the Main
PCBA to lock on the keypad.
Figure 17. Locking the Main PCBA on its position
8.
Replace the lower housing cover, battery, and battery door as described in the procedures
Removing and Replacing the Keypad and Hinge Module
1.
26
Remove the battery door, battery, lower housing cover, and the Main PCBA as described
in the procedures.
July 15, 2008
Level Service Manual
Disassembly
2.
Push up the keypad then pull out gently the keypad from the key ring of the hinge as shown
Figure 18.
Figure 18. Removing Keypad
3.
Unscrew the 4 cross screws and 2 T5 screws as Figure 19.
Figure 19. Unscrew the 6 screws
July 15, 2008
27
Disassembly
4.
Pull the hinge upward to remove the hinge from the upper module.
Figure 20. Remove the hinge
5.
To replace, slider the hinge to the middle and fix it.
Figure 21. Fix hinge
28
July 15, 2008
Level Service Manual
Disassembly
6.
Insert the board to board FPC into hinge module as shown in Figure 22.
Figure 22. Insert FPC
7.
Insert the board to board FPC into the channel of the hinge, the pull out the FPC from the
other side as shown in Figure 23.
Figure 23. Insert FPC
8.
Fasten the 4 cross screws and 2 T5 screws
July 15, 2008
29
Disassembly
9.
Align the keypad withe three guide hole/pin and do not let main FPC draw back into the
channel.
Figure 24. Replacing the keypad
10. Replace the Main PCBA, the lower housing cover, battery, and battery door as described
in the procedures
30
July 15, 2008
Level Service Manual
Disassembly
Removing and Replacing the Board to Board FPC
1.
2.
Remove the battery door, battery, lower housing cover, the Main PCBA, the keypad, and
hinge module as described in the procedures.
Unlock the 3 FPC connector to dismantle the main FPC as shown in Figure 25.
Figure 25. Remove board to board FPC
3.
4.
To replace, insert the board to board FPC into the corresponding connector completely.
The white line on the FPC has to align to the connector latch.
Replace the hinge module, the keypad, the Main PCBA, lower housing cover, battery, and
battery door as described in the procedures.
Removing and Replacing the Camera/Vibrator Flex module and Receiver
1.
Remove the battery door, battery, lower housing cover, the Main PCBA, the keypad, the
hinge module, and the board to board FPC as described in the procedures.
July 15, 2008
31
Disassembly
2.
Remove the camera rubber by finger as shown in Figure 26.
Figure 26. Removing the camera rubber
3.
Unscrew the 3 cross screws and remove the camera/ vibrator flex module.
Figure 27. Removing the Camera / Vibrator flex module
32
July 15, 2008
Level Service Manual
Disassembly
4.
Remove the receiver by finger or tweezers.
Figure 28. Removing the receiver
5.
6.
7.
8.
To Replace, assembly the receiver into Case A.
Place the Camera/Vibrator Flex module in Case A and make sure the module aligns with
the screw hole.
Fasten the 3 cross screws and place the camera rubber on the Camera.
Replace the board to board FPC, the hinge module, the keypad, the Main PCBA, lower
housing cover, battery, and battery door as described in the procedure.
Removing and Replacing the LCM module, Upper PCBA and Speaker
1.
2.
Remove the battery door, battery, lower housing cover, the Main PCBA, the keypad, the
hinge module, and board to board FPC as described in the procedures.
Use tweezers to remove the LCM FPC from the speaker chamber. Then pull up the LCM
module.
Figure 29. Removing LCM module
July 15, 2008
33
Disassembly
3.
Bend edge of Case A genitally to release the 2 hooks as shown in Figure 30. Press the
navigate key to lift the upper PCBA around 45 degrees then pull out the upper PCBA.
Figure 30. Removing upper PCBA
Figure 31. Removing upper PCBA
34
July 15, 2008
Level Service Manual
Disassembly
4.
Unlock Speaker wire from the upper PCBA by tweezers.
Figure 32. Removing the speaker
5.
Separate the Speaker Chamber from the Upper PCBA..
Figure 33. Removing the speaker chamber
July 15, 2008
35
Disassembly
6.
Remove the speaker from upper PCBA.
Figure 34. Removing the speaker
7.
To replace, lean the upper PCBA 40 degree to place on the case A. Put the speaker chamber
on top of the upper PCBA and make sure the hook is lock.
Figure 35. Replacing Upper PCBA and Speaker chamber
36
July 15, 2008
Level Service Manual
Disassembly
8.
Place the speaker on the speaker chamber and make sure the speaker wire is on the right
side. Also, the white dot on the speaker wire connector should face up when connect to the
upper PCBA.
Figure 36. Replacing speaker
9.
Place the LCM module on the Case A. The hole of LCM FPC should align with the pin of
the speaker chamber.
Figure 37. Replacing speaker
10. Replace the board to board FPC, the hinge module, the keypad, the Main PCBA, lower
housing cover, battery, and battery door as described in the procedure.
Removing and Replacing the Antenna Carrier and Audio Jack
1.
Remove the battery door, battery, and lower housing cover as described in the procedures.
July 15, 2008
37
Disassembly
2.
Push the RF cap from inside of lower housing to remove.
Figure 38. Remove the RF cap
3.
Remove the audio jack and the audio jack rubber by finger.
Figure 39. Remove the audio jack
38
July 15, 2008
Level Service Manual
Disassembly
4.
Remove the antenna carrier from case D as shown in Figure 40.
Figure 40. Remove the audio jack
5.
6.
7.
To replace, assembly the antenna carrier into Case D.
Put the audio jack into audio jack rubber and put the audio jack into antenna carrier.
Place lower housing cover, battery, and battery door as described in the procedure.
July 15, 2008
39
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 travelling
(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 labelled 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 41.
MSN 10 Digits
3 Digits
1 Digit
2 Digits
4 Digits
APC
DC
DC
SNR
Account Product Code
i.e. StarTACTM Phone130
Distribution Center
i.e. Easter Inch
Date Code: Year and
Month of Shipment
Unit's individual serial
number
Figure 41. MSN Label Breakdown
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 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 Table 2.
40
July 15, 2008
Level Service Manual
Label
Subscriber Identity Module (SIM) and Identification
Table 2. IMEI Number Breakdown
TAC
Serial Number
NNXXXX YY
ZZZZZZ
Check Digit
A
Where
TAC
Type Allocation Code, formerly known as Type Approval Code
NN
Reporting body identifier
XXXX
Type identifier
YY
YY is set to 00 from 01/01/2003 until 31/03/2005.
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:
• 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.
July 15, 2008
41
Troubleshooting
Troubleshooting
Manual Test Mode
Motorola EM325 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. Press and hold
to turn the phone OFF.
2. Remove the battery door as described in the procedures.
3. Remove the battery as described in the procedures.
4. Remove the customer’s SIM card from the phone.
5. Insert the test SIM into the SIM slot.
6. Replace the battery as described in the procedures.
7. Replace the battery door as described in the procedures.
8. Press and hold
to turn the phone ON.
Manual Test Mode Commands
Table 3. Manual Test Commands
Key Sequence
*#06#
*#**372#
42
Test Function/Name
IMEI Check
Remarks
No Test Mode Required
Test Display. Melody, speaker, keypad, etc.
July 15, 2008
Level Service Manual
Troubleshooting
Troubleshooting Chart
Table 4. Level 1 and 2 Troubleshooting Chart
Symptom
1. Telephone 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 telephone. Realign and, if
necessary, either replace the 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 as described in the
procedures. Temporarily connect a +3.6 Vdc
supply to the battery terminals. Press and hold
the PWR button. If unit turns on and stays on,
disconnect the dc power source and reassemble
with the new keypad.
2. Telephone 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.
a) FPC cable faulty.
Check general condition of FPC cable and
upper PCB. If the FPC cable and upper PCB are
good, proceed to b.
b) LCM defective.
Replace the LCM. Verify that the fault has been
cleared and reassemble the unit 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 unit with the new
speaker.
5. Telephone transmit audio is weak
(usually indicated by called parties
complaining of difficulty in hearing voice).
Microphone defective.
Refer service to a Level 3 Service Center for
replacement.
6. Receive audio from earpiece speaker is a) Connections to or from lower PCB Check connection between the antenna and the
weak or distorted.
defective.
lower PCB. If the connection is OK, proceed to
b.
7. Telephone will not recognize or accept
SIM card.
b) Speaker defective.
Temporarily replace the speaker with a known
good speaker. Ensure good connection. Place a
call and verify improvement in earpiece audio. If
fault is cleared, reassemble the telephone with
the good speaker.
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 telephone. Power up the unit
and confirm that the card has been accepted. If
the fault no longer exists, replace the defective
SIM card.
July 15, 2008
43
Troubleshooting
Table 4. Level 1 and 2 Troubleshooting Chart(Continued)
Symptom
8. Keypad not functioning.
Probable Cause
Keypad defective.
9. No or weak audio when using headset. Headset plug not fully pushed.
Verification and Remedy
Use alcohol to wipe the keypad metal dome.
Check if fault has been cleared. If the fault is still
present, either replace the keypad as described
in the procedures or refer to a Level 3 Service
Center for the keypad metal dome replacement.
Ensure the headset plug is fully seated in the
audio jack.
Programming: Software Upgrade and Flexing
Contact your local technical support engineer for information about equipment and procedures
for flashing and flexing.
44
July 15, 2008
Level Service Manual
Part Number Charts
Part Number Charts
The following section provides a reference for the parts associated with
EM325 telephones.
Related Publications
Motorola EM325 Wireless Phone User Guide
July 15, 2008
45
Part Number Charts
Exploded View Diagram
Figure 42. EM325 Exploded View Diagram
46
July 15, 2008
Level Service Manual
Part Number Charts
Exploded View Parts List
Table 5. Exploded View Parts List
Item
Number
Part Number
Description
Item
Number
Part Number
Description
1
MEDUO61005A Assy_Function_Keypad_Lens
25
MEDUO42001A Conn_Phone_jack_5 pin
2
MEDUO61001A Assy_Case_A
26
MEDUO36001A Rubber_Sealing
3
MEDUO31009A Mylar_LED_Upper_Board
27
MEDUO14007A FPC_shielding Career
4
MEDUO61006A Assy_Function_Key_Dome
28
W5401143200
screw_PT_T5_J_Head_1.4*3.2
_Lathe
5
SB0DUO4TG1A Slide-PCB
29
W5401143800
screw_PT_T5_J_Head_1.4*3.8
_Lathe
6
S0S1420C010
Speaker
30
7
S0C03758020
Camera Sensor
31
W5101143220
8
MEDUO61004A Assy_Case_D
W6401160420
screw_M_Type_T5 W/O
washer_Head_ 1.6*3.8
Screw_PT_Cross Pit_I Head
32
MEDUO36006A Rubber_RF_cover
9
MEDUO39001A Conductive_Rubber_camera
33
MEDUO01007A RF_Cover
10
MEDUO39003A Conductive_Rubber_LCM
center
34
MEDUO01006A Battery_Cover
11
MEDUO61002A Assy_Speaker_chamber
12
MEDUO13001A Magent
13
S0R0711K010
Receiver_Impendance:32
14
SLT1216X700
LCM_TFT_ 128*160 dots
15
MEDUO14002A FPC_Main _career
16
MEDUO61003A Assy_Hinge_Slide
17
MEDUO08003A Lens_Cameo
18
MEDUO07002A Main_ Key
19
MEDUO36005A Rubber_Lens_Charger_
Indicator
20
MEDUO31005A Mylar_LED
21
MEDUO16002A Dome_Main_Key
22
PKDUO15002A Label_Water_indication
23
SB0DUO1TG0A PCB Main
24
MEDUO36002A Rubber_Grommet_EMU
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.
July 15, 2008
47
Part Number Charts
Accessories
Table 6. List of Accessories
Description
Part Number
Power Solution
Battery 850 mAh LiIon
SNN5744
Black battery door
SHN9510A
AC charger - PRC plug
AAPN4061
AC charger - UK/HK plug
SPN5164
AC charger - Aus plug
SPN5295A
AC charger - India plug
SPN5169A
AC charger - US/TWN plug
SPN5268
Audio & Connectivity
Headset
CHYN4516
USB data transfer cable
SKN6371
Mobile phone tools CD-ROM
AAVN4008
Consumer Personalization
48
Silver lanyard (PRC)
CHYN4152B
Carrying case (TWN)
CHYN4642A
July 15, 2008
Level 1-2 Service Manual
W220
Index
product 4
identification, labels 42
IMEI 42
introduction 4
A
alert settings 17
K
B
keypad, removing and replacing 28
battery
charge indicator 17
function 17
battery door, removing and replacing 19
battery, removing and replacing 21
L
Liquid Crystal Display (LCD) 13
M
C
caller ID 12
Canadian Interference-Causing Equipment Regulations 4
changes
product 4
commands, manual test mode 44
copyrights
computer program 4
N
names
product 4
O
D
disassembly 19
E
exploded view diagram 48
exploded view parts list 49
F
FCC rules 4
features
caller ID 12
chat messaging 12
Finger Writing Recognition (FWR) text entry 12
SIM Toolkit 12
text entry 12
voice activation 11
Wireless Access Protocol (WAP) 11
finger writing sensitive keypad, removing and replacing 28
front housing cover, removing and replacing 34
I
manual test mode 44
menu structure 16
model number 4, 7
MSN 42
icons 14
identification
International Mobile Station Equipment Identity (IMEI)
42
Mechanical Serial Number (MSN) 42
operation
alert settings 17
battery 17
controls, indicators, and I/O connectors 13
icons
battery power level 14
call diverting 15
call muted 15
call waiting 15
GPRS data call active 15
GPRS mode 15
line 1/line 2 15
MMS memory full 15
MMS message processing 14
new MMS message 14
new SMS message 14
new SMS/MMS message 14
new SMS/voicemail message 14
new voicemail message 14
online chat active 15
ringer on 15
ringer/vibrator on 15
roaming 14
signal strength 14
silent 15
vibrator on 15
voice call active 14
July 15, 2008
-55
Level 1-2 Service Manual
LCD 13
menu navigation 13
menu structure 16
overview, product 10
P
parts
exploded view diagram 48
exploded view parts list 49
model number 4, 7
replacement parts 7
product
changes 4
identification 4
names 4
product overview 10
features 10
publications, related 47
R
rear housing cover, removing and replacing 23
regulatory agency compliance 4
related publications 47
removing
antenna 29
audio jack cover 29
battery 21
battery door 19
connector of vibrator 36
finger writing sensitive keypad 28
flip module 32
foil 36
FPC cable 36
FPC connector of CMOS 36
front housing cover 34
hinge 40
keypad 28
lower PCB 25
microphone 27
rear case 32
rear housing cover 23
receiver 40
rubber camera 36
smart key 29
speaker 29
upper PCB with the LCM attached 39
vibrator 40
volume key 29
replacement parts
ordering 7
-56
W220
replacing
antenna 29
audio jack cover 29
battery 21
battery door 19
CMOS module 40
connector of vibrator 36
finger writing sensitive keypad 28
flip module 32
foil 36
FPC cable 36
FPC connector of CMOS 36
front housing cover 34
hinge 40
keypad 28
lower PCB 25
microphone 27
rear case 32
rear housing cover 23
receiver 40
rubber camera 36
smart key 29
speaker 29
upper PCB with the LCM attached 39
vibrator 40
volume key 29
S
serial number
mechanical 42
service manual
about 5
audience 5
conventions 6
scope 5
service policy 6
customer support 6
out of box failure 6
product support 6
shut down
upon battery removal 17
SIM Toolkit 12
SIM, description 42
specifications 8
Subscriber Identity Module (SIM) 42
support
customer 6
product 6
July 15, 2008
Level 1-2 Service Manual
W220
T
test equipment 18
text entry 12
tools and test equipment 18
tools, disassembly 19
troubleshooting 44
manual test mode 44
manual test mode commands 44
troubleshooting chart 45
V
vibrator, removing and replacing 41
voice activation 11
voice command 11
voice dialing 11
voice launcher 11
voice numbers 11
W
WAP (Wireless Access Protocol) 11
warranty service 6
July 15, 2008
-57
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.
TrueSync is a trademark of Starfish Software, Inc.
® Reg. U.S. Pat. & Tm. Off.
 2006 Motorola, Inc.
All rights reserved.
Personal Communications Sector,
Sawgrass International Concourse
789 International Parkway Room S2C
Sunrise, FL 33323