Motorola T190, T191 Service Manual

Level 1 and 2 Service Manual

Product Families C25 & C43

Dual Band Wireless Telephone

Talkabout

by Toko ([e-mail])

•

191, 190

1 and 2

1 and 2

C25

C25 and C43
6881039B15

Level 1 and 2 Service Manual Table of Contents

6881039B15

Table of Contents

Table of Contents

Table of Contents

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Product Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Product Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Product Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Regulatory Agency Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Computer Program Copyrights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

About This Service Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Warranty Service Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Parts Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

General Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Controls, Indicators, and Input / Output (I/O) Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

User Interface Menu Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Alert Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Battery Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Tools and Test Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Removing and Replacing the Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Removing and Replacing the Subscriber Identity Module (SIM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Removing and Replacing the Rear Escutcheon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Removing and Replacing the Rear Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Removing and Replacing the Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Removing and Replacing the Vibrator and Vibrator Grommet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Removing and Replacing the Alert Transducer Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Removing and Replacing the Transceiver Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Removing and Replacing the RTC Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Removing and Replacing the Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Removing and Replacing the Earpiece Speaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Removing and Replacing the Microphone and Microphone Grommet . . . . . . . . . . . . . . . . . . . . . . . . . 29

Removing and Replacing the Keypad Switch Dome Array . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

SIM Card and Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

SIM Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Manual Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Manual Test Mode Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Programming: Software Upgrade and Flexing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Part Number Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Exploded View Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Exploded View Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Model-dependent Part Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Related Publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Index-1

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6881039B15 August 01, 2001 i

Table of Contents Product Family C25 and C43

PRELIMINARY

ii August 01, 2001

1 and 2

C25 and C43

Level 1 and 2 Service Manual Introduction

6881039B15

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 which enable customers to meet requirements for reliable,
continuous communications.

To learn more about the wide range of Motorola service programs, contact your local
Motorola products representative or the nearest Customer Service Manager.

Product Identification

Motorola products are identified by the model number on the housing. 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 included in Product Family C25 and C43 telephones 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:

1. This device may not cause any harmful interference, and

2. 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.

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6881039B15 August 01, 2001 1

6881039B15
C25 and C43

Introduction Product Family C25 and C43

1 and 2

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,
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 PF C25 and C43 telephones. Refer
questions about this manual to the nearest Customer Service Manager.

A product family is the group of products having the same Account Product Code
(APC). To locate the APC on a device, refer to “Mechanical Serial Number (MSN)”
later in this manual.

Audience

This document aids service personnel in testing and repairing PF C25 and PF C43
telephones. Service personnel should be familiar with electronic assembly, testing,
and troubleshooting methods, and with the operation and use of associated test
equipment.

Use of this document assures proper installation, operation, and maintenance of
Motorola products and equipment. It contains all service information required for
the equipment described and is current as of the printing date.

Scope

The scope of this document is to provide the reader with basic information relating
to PF C25 and PF C43 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.

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2 August 01, 20 01 6881039B15

Level 1 and 2 Service Manual Introduction

Conventions

Special characters and typefaces, listed and described below, are used in this
publication to emphasize certain types of information.



G
E

E

Revisions

Any changes that occur after manuals are printed are described in publication
revision bulletins (PMRs). These bulletins provide change information that can
include new parts listing data, schematic diagrams, and printed board layouts.

Warranty Service Policy

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.

Key s to be pressed are represen ted gra phically. For e xample , instead of “Press
the Enter Key”, you will see “Press E”.

Information from a screen is shown in text as similar as possible to what
appears in the display. For example, ALERTS or ALERTS or ALERTS.

Information that you need to type is printed in boldface type

The product will be sold with the standard 12 months 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 units 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 units will be repaired but not refurbished as standard. Appoint­ed Motorola Service Hubs will perform warranty and non-warranty field service for
level 2 (assemblies) and level 3 (limited PCB component). The Motorola HTC centers
will perform level 4 (full component) repairs.

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6881039B15 August 01, 2001 3

Introduction Product Family C25 and C43

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.

Parts Replacement

When ordering replacement parts or equipment, include the Motorola part number
and description used in the service manual or supplement.

When ordering crystals or channel elements, specify the Motorola part number,
description, crystal frequency, and operating frequency desired.

When the Motorola part number of a component is not known, use the product model
number or other related major assembly along with a description of the related
major assembly and of the component in question.

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: [phone] Phone: [phone]
FAX: [phone] FAX: [phone]

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4 August 01, 20 01 6881039B15

Level 1 and 2 Service Manual Specifications

Specifications

General Function Specification

Frequency Range GSM 880-915 MHz Tx (with EGSM)
Frequency Range DCS 1710-1785 MHz Tx
Channel Spacing 200 kHz

Channels 174 EGSM
Modulation GMSK at BT = 0.3
Transmitter Phase Accuracy 5 Degrees RMS, 20 Degrees peak
Duplex Spacin g 45 MHz
Frequency Stability ± 0.10 ppm of the downlink frequency (Rx)
Operating Voltage +3.0V dc to +5.1V dc (battery)

Transmit Current 185 - 250 mA average talk current drain
Stand-by Current Typically 6mA (DRX2),4mA (DXR9)
Dimensions, 106 mm x 40 mm x 16 mm

Size (Volume) 68 cc (x.x in
Weight 85 gm (2.9 oz), with 500 mAh battery
Temperature Range -10° C to +55° C (+15° F to +130° F)
Battery Life, 550 Ni Mh Battery Talk Time 120 to 300 minutes

Battery Charge Time 3 Hours
Alert Volume 95 dB @ 5 cm

925-960 MHZ Rx
1805-1880 MHz Rx

3.6V, 600mA (external connector)

(4.17 inches X 1.57 inches X.63 inches)

Standby 50 to 120 hours

3

), with 500 mAh battery

Transmitter Function Specification

RF Power Output 33 dBm nominal GSM 900, 30 dBm nominal GSM 1800
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 Better than -103 dBm
RX bit error rate (100k bits) Type II < 2%
Channel Hop Time 500 microseconds
Time to Camp Approximately 5-10 seconds

Speech Coding Function Specification

Speech Coding Type Regular pulse excitation / linear predictive coding with long
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

term prediction (RPE LPC with LTP)

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6881039B15 August 01, 2001 5

Product Overview Pr oduct Family C25 and C43

Product Overview

Motorola PF C25 and PF C43 mobile telephones feature global system for mobile
communications (GSM) air interface, and wireless application protocol (WAP)
Internet browser (PFC25 only). The PF C25 and PF C43 telephones incorporate a
new user interface (UI) for easier operation, allows short message service (SMS)
text messaging, and includes personal information manager (PIM) functionality. It
is a dual-band phone that allows roaming within the GSM 900 MHz and digital
cellular system (DCS) 1800 MHz bands. PF C25 telephones support SMS in addition
to traditional circuit switched transport technologies.

PF C25 and PF C43 telephones are made of a polycarbonate plastic. The display
and speaker, as well as the keypad, transceiver printed circuit board (PCB),
microphone, external accessory connector, volume buttons, power button, and voice
button, are contained within the flat form-factor housing. The phone accepts both
3V and 5V mini subscriber identity module (SIM) cards which fit into the SIM holder
underneath the battery. The antenna is a fixed stub type antenna.

Features

The PF C25 and PF C43 telephones use advanced, self-contained, sealed, custom
integrated circuits to perform the complex functions required for GSM 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:

• Ergonomic design for comfort and enhancement of one hand operation

• Icon Based Simplified User Interface

• Animated Screen Savers

• 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

• Supports SMS, concatenated SMS, and cell broadcast messages

• WAP 1.1 compliant

2

• 700 mm

• Icon based simplified user interface

• Display zoom

• Display animation

• VibraCall® vibrating alert

• Voice recorder personal memo feature

• Voice activation for phone book entries and menu shortcuts

• Simplified text entry using iTAP™ predictive text entry

• Supports calling name presentation

• Supports call forwarding for incoming voice, fax, and data calls

• Supports 3V and 5V SIM cards

• SIM Toolkit (STK), Class II

98 x 64 pixel, high resolution 4 line graphic display

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6 August 01, 20 01 6881039B15

Level 1 and 2 Service Manual Product Overview

Speaker Dependant Voice Recognition and Voice Note Recording

This feature allows voice tags to be used for voice dialing up to 20 phone numbers
in the phone book and for creating up to 5 voice shortcuts for menu items. The phone
must be “trained” by the voice tag being read into the phone’s memory twice before
it is recognized.

Voice tags can be added to the phone’s memory using the usual name addition
methods (i.e., via the phone book menu structure or with the shortcut editor).








The user cannot place or receive calls while adding voice tags to the phone’s memory.

Because the GSM standard does not provide the option to store voice tags onto the
SIM card, voice tags are added to the phone’s memory.

Wireless Access Protocol (WAP) 1.1 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 PF C25’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

There are three different ways to enter text using the phone keypad:

• 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.

• Tap. Press a key to generate a character.

• Numeric. The keypad produces numeric characters only. For some text areas

this is the only method available; for example, phone numbers.

Caller Line Identificati on

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

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6881039B15 August 01, 2001 7

Product Overview Pr oduct Family C25 and C43

event that no caller identification information is available, the message INCOMING
CALL is displayed.



User must subscribe to a caller line identification service through their service
provider.

Call Forwarding

Call forwarding is a network feature that diverts incoming calls to another phone
number if the user or phone is unavailable, or the user does not wish to receive calls.
This option can be used to:

• Divert all incoming voice calls unconditionally

• Divert incoming voice calls whenever the phone is unavailable, busy, not reach-

able, or not answered

• Divert incoming fax calls

• Divert incoming data calls

• Allow all calls through to the phone.

Detailed operating instructions for these and the other PF C25 and PF C43 features
can be found in the appropriate PF C25 and PF C43 telephone user’s guide listed
in the “Related Publications” section toward the end of this manual.

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8 August 01, 20 01 6881039B15

Level 1 and 2 Service Manual General Operation

General Operati on

Controls, Indicators, and Input / Output (I/O) Connectors

The PF C25 and PF C40 telephone controls are located on the keyboard. The
headphone jack and power jack are on the side and bottom, respectively. Indicators,
in the form of icons, are displayed on the LCD (see Figure 1 and Figure 2).

LANYARD LOOP

HEADSET JACK

MENU KEY

PRESS TO ACCESS

MENU OPTIONS

LEFT SOFT KEY

EXECUTES THE COMMAND

SHOWN AT THE BOTTOM LEFT

OF THE DISPLAY. NORMALLY

QUIT, EXIT, OR DELETE

POWER BUTTON

SCROLL KEY

CAN ALSO BE USED TO

ACCESS QUICK ACCESS

VOICEMAIL KEY

PRESS AND HOLD

MENU

ANTENNA

EARPIECE

GRAPHIC DISPLAY

98 X 64 PIXEL LCD WITH 3 LINES
OF TEXT, I LINE ICONS, 1 LINE
SOFT KEY LABELS

RIGHT SOFT KEY

EXECUTES THE COMMAND SHOWN
AT THE BOTTOM RIGHT OF THE
DISPLAY. NORMALLY SELECT OR OK

VOICE KEY

PRESS AND HOLD "UP"

SEND / ANSWER KEY

KEYPAD

PRESET FAVORITE PHONE NUMBERS
FOR 1 TOUCH DIALING. PRESET
FAVORITE WEB SITES FOR 1 TOUCH
WEB ACCESS DURING A WAP SESSION

CHARGER JACK

Figure 1. PF C25 Controls and indicators locations

The PF C43 Telephone is similar in appearance to the PF C25 telephone but has a
slightly different keypad appearance.

MICROPHONE

T191_controls.eps

Function and Keypad Keys

The keys on the front of the telephone (in conjunction with the display) provide the
phone’s user interface (UI). The function keys, positioned above the keypad, are
described in Figure 2.

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6881039B15 August 01, 2001 9

The PF C25 and PF C43 keypad operates as a conventional telephone keypad. The
alpha characters used in text messaging functions are shown in Figure 3.

General Operation Product Family C25 and C43

T191_functkeys.eps

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10 August 01, 20 01 6881039B15

Figure 2. PF C25 Function keys

Level 1 and 2 Service Manual General Operation

T191_alpnumkeys.eps

Figure 3. PF C25 Alphanumeric keys

Liquid Crystal Display (LCD)

The LCD provides a high contrast backlit display for easy readability in all light
conditions. The large bit-mapped 98 x 64 pixel display includes 3 lines of text, 1 line
of icons, and 1 line of soft key labels.

Display animation makes the phone’s menus move smoothly as the user scrolls up
and down.

Whether a phone displays all indicators depends on the programming and services



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6881039B15 August 01, 2001 11

to which the user subscribes.

Turn animation off to conserve the battery.

General Operation Product Family C25 and C43

Figure 4 shows the appearance of the PF C25 display when idle.

T191_display.eps

Figure 4. PF C25 Idle display

The phone’s icon indicators are shown in Figure 5.

Figure 5. PF C25 Icon indicators

T191_icons.eps

• Signal Strength Indicator. Shows the strength of the phone’s connection

PRELIMINARY

12 August 01, 20 01 6881039B15

with the network. Calls cannot be sent or received when the “no signal” indica-
tor is displayed.

Level 1 and 2 Service Manual General Operation

• Short Message. Appears when the phone receives a text message or has an
unread text message. This is a network-dependent feature.

• Voice Mail Waiting. Appears when a voicemail message is received. This is a
network-dependent feature.

• Call Divert. All incoming calls are diverting to a designated number.

• Line In Use. Indicates the current line is in use.

• Vibration Only. The phone vibrates without ringing when a call is received.

• Battery Level Indicator. Shows the amount of charge left in the battery. The

more segments visible, the greater the charge. When no bars are visible,
recharge the battery as soon as possible.

• Key Lock. Indicates that the phone’s key pad locked is activated.

• Roam Indicator. Appears when the phone uses another network system out-

side the user’s home network. When leaving the home network area, the phone
roams, or seeks, another network.

• Menu Indicator. Indicates the user can press the menu soft key to open a
menu.

• Clock. Shows the current time. This is a network-dependent feature.

User Interface Menu Structure

Menu Navigation

PF C25 and PF C43 telephones are equipped with a simplified user-friendly
interface that employs soft keys and a 2-way scroll key to access phone functions
and features. See Figure 1.

“Soft keys” refer to non-labeled keys that correspond to text options displayed on
the screen. The left and right soft keys perform the function shown in the corners
of the display. The left key will usually select an option whereas the right key will
usually exit a function or return to a previous screen.

The menu key opens the initial menu structure, or allows access to a submenu
whenever appears on the screen. See Figure 6 for details of the PF C25 menu
structure.

PRELIMINARY

6881039B15 August 01, 2001 13

General Operation Product Family C25 and C43

T191_mwnu.eps

Figure 6. PF C25 Menu structure

PRELIMINARY

14 August 01, 20 01 6881039B15

Level 1 and 2 Service Manual General Operation

Alert Settings

PF C25 and PF C43 telephones include up to 32 preset alert tones and vibrations
that can be applied individually to specific alert events or to all events at the same
time.

Battery Fu nction

E



Pressing either volume key will mute the alert.

Battery Gauge

The telephone displays a battery level 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 device to immediately shut down and any pending
work (for example, partially entered phone book entries or outgoing messages) is
lost.

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.

G

Operation

If the battery is removed while receiving a message, the message will be lost.



To ensure proper memory retention, turn the phone OFF before removing the
battery. Immediately replace the old battery with a fully charged battery.

For detailed operating instructions, refer to the appropriate User’s Guide listed in
the Related Publications section toward the end of this manual.

PRELIMINARY

6881039B15 August 01, 2001 15

General Operation Product Family C25 and C43

PRELIMINARY

16 August 01, 20 01 6881039B15

1 and 2

Level 1 and 2 Service Manual Tools and Test Equipment

6881039B15
C25 and C43

Tools and Test Equipmen t

The following tables list the tools and test equipment used on the PF C25 telephone.
Use either the listed items or equivalents.

Table 1. General Test Equipment and Tools

Motorola

Part Number

See Table 6 Charger Used to charge battery and to power device

0180386A82

6680388B67 Disassembly tool, plastic with flat and pointed

RSX4043-A Torque Driver Used to remove and replace screws

6680388B01 Tweezers, plastic Used during assembly/disassembly

HP34401A

1. To order in North America, contact Motorola Aftermarket and Accessories Division (AAD) at [phone];
Internationally, AAD can be reached by calling [phone] or faxing [phone].

2. Not available from Motorola. To order, contact Hewlett Packard at [phone].

1

Antistatic Mat Kit (include s 66-803 87A95 antis tatic
mat, 66-80334B36 groun d cord, and 42- 80385A59
wrist band)

ends (manual opening tool)

Torque Driver Bit T-5, Apex 440-5IP Torx Plus or
equivalent

2

Digital Multimeter Used to measure battery voltage

Description

Provides protect ion from damage to de vice caus ed
by electrostatic disch arge (ESD)

Used during assembly/dis assembly of device

Used with torque driver

Application

PRELIMINARY

6881039B15 August 01, 2001 17

Disassembly Product Family C25 and C43

Disassembly

The procedures in this section provide instructions for the disassembly of PF C25
and PF C43 telephones. Tools and equipment used for the phone are listed in Table
1, preceding.

Many of the integrated devices used in this equipment are vulnerable to damage

G
G

Removing and Replacing the Battery

E

from electrostatic discharge (ESD). Ensure adequate static protection is in place
when handling, shipping, and servicing the internal components of this equipment.

Avoid stressing the plastic in any way to avoid damage to either the plastic or
internal components.

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. Ensure the phone is turned off.

PRELIMINARY

18 August 01, 2001 6881039B15

Level 1 and 2 Service Manual Disassembly

2. Depress the battery latch and slide it in the direction of the arrow (see Figure 7).

BATTERY LATCH

Figure 7. Removing the battery

BATTERY

T191_battery_rem.eps

3. Lift the bottom end of the battery from the phone, then remove it completely

as shown in the figure.

There is a danger of explosion if the Nickel Metal Hydride battery is replaced
incorrectly. Replace only with the same type of battery or equivalent as recommended

E

Removing and Replacing the Subscriber Identity Module (SIM)

by the battery manufacturer. Dispose of used batteries according to the manufac­turer’s instructions.

4. To replace, align the battery with the battery compartment so the contacts on

the battery match the battery contacts in the phone.

5. Slide the top of the battery into the receptacle molded into the housing, then

press the bottom end of the battery securely into the battery compartment until
it locks into place.

1. Remove the battery as described in the procedures.

2. Slide the SIM latch in the direction of the arrow to unlock as shown in Figure 8.

PRELIMINARY

6881039B15 August 01, 2001 19

Disassembly Product Family C25 and C43

3. Rotate the SIM and slide it out as shown in the figure.

SIM LATCH

SIM

T191_SIM_rem.eps

Figure 8. Removing the SIM

4. To replace, carefully insert the SIM into the SIM holder. Be sure the SIM is
correctly positioned to contact the terminals when closed.

5. Slide the SIM latch to lock in place.

6. Replace the battery as described in the procedures.

PRELIMINARY

20 August 01, 2001 6881039B15

Level 1 and 2 Service Manual Disassembly

Removing and Replacing the Rear Escutcheon

DISASSEMBLY

TOOL

REAR

HOUSING

ESCUTCHEON

Figure 9. Removing the rear escutcheon

1. Remove the battery as described in the procedures.

2. Using the flat end of the disassembly tool, carefully peel the escutcheon from
the rear housing. See Figure 9.

3. To replace, remove the protective paper backing from the new escutcheon and
carefully align it with the cavity molded into the rear housing.

4. Press the escutcheon firmly into place making sure pressure is applied evenly
across the entire surface to ensure a tight bond.

5. Replace the battery as described in the procedures.

Removing and Replacing the Rear Housing

This product contains static-sensitive devices. Use anti-static handling procedures

G
G

to prevent electrostatic discharge (ESD) and component damage.

The housing is fastened with plastic catches. These are delicate and should be parted
using utmost care.

.T191_escutcheon_rem.eps

1. Remove the battery and SIM as described in the procedures.

PRELIMINARY

6881039B15 August 01, 2001 21

Disassembly Product Family C25 and C43

2. Locate the 4 screws holding the front housing to the rear housing. See
Figure 10.



Push the battery latch in the direction of the arrow to expose the 2 bottom housing
screws as shown in Figure 10.

HOUSING SCREW,

4 PLACES

BATTERY

LATCH

REAR HOUSING

DISASSEMBLY

TOOL

T191_rearhsg_rem.eps

Figure 10. Removing the Rear Housing

3. Using the Torx driver with a T5 bit, remove the 4 screws and set aside for reuse.

4. Using the flat end of the disassembly tool, carefully disengage the catches on
the top and both sides of the housing, then separate the rear housing from the
front housing.

5. Lift the rear housing from the front housing as shown in the figure.

6. To replace, align the front housing with the rear housing then firmly press
together until the catches engage and the housings are properly assembled.

PRELIMINARY

22 August 01, 2001 6881039B15

7. Replace the 4 screws and tighten firmly. Do not over tighten.

Level 1 and 2 Service Manual Disassembly

8. Slide the battery latch toward the bottom of the phone until it snaps into place.

9. Replace the SIM and battery as described in the procedures.

Removing and Replacing the Antenna

1. Remove the battery, SIM, and rear housing as described in the procedures.

2. Using a firm even pressure, pull the antenna straight out of the rear housing
to remove. See Figure 11.

REAR HOUSING ANTENNA

T191_antenna_rem.eps

Figure 11. Removing the antenna

G

Exercise caution when handling the antenna to prevent damage to the antenna
terminal.

3. To replace, insert the end of the antenna carefully into the housing and, after
ensuring the antenna terminal is correctly aligned to contact the transceiver
board when reassembled, push straight into the housing until it snaps into
place.

4. Replace the rear housing, SIM, and battery as described in the procedures.

PRELIMINARY

6881039B15 August 01, 2001 23

Disassembly Product Family C25 and C43

Removing and Replacing the Vibrator and Vibrator Grommet

1. Remove the battery, SIM, and rear housing as described in the procedures.

REAR HOUSING

DISASSEMBLY TOOL

VIBRATOR ASSEMBLY

VIBRATOR

VIBRATOR GROMMET

T191_vibrator_rem.eps

Figure 12. Removing the vibrator and vibrator grommet

2. Using the flat end of the disassembly tool, carefully pry the vibrator assembly
from its cavity in the rear housing as shown in Figure 12. The assembly should
come away from the rear housing easily.

3. Separate the vibrator from the vibrator grommet.

4. To replace, insert the vibrator into the grommet. Ensure the vibrator shaft can
to rotate freely.

5. Align the vibrator assembly with the rear housing so the vibrator terminals
will contact the transceiver board contacts when reassembled, then press into
place until fully seated.

6. Replace the rear housing, SIM, and battery as described in the procedures.

PRELIMINARY

24 August 01, 2001 6881039B15

Level 1 and 2 Service Manual Disassembly

Removing and Replacing the Alert Transducer Assembly

1. Remove the battery, SIM, and rear housing as described in the procedures.

2. Using the flat end of the disassembly tool, carefully pry the transducer from
its cavity in the rear housing as shown in Figure 13.

G

DISASSEMBLY

TOOL

Figure 13. Removing the alert transducer assembly

The alert transducer is fastened to the rear housing with adhesive. Exercise care
when removing to prevent damage to the rear housing.

3. To replace, remove the protective backing from the new transducer, then press
the transducer into place in the rear housing cavity. Be sure the transducer is
straight, fully seated in its cavity, and positioned so its terminals will contact
the transceiver board when reassembled.

4. Replace the rear housing, SIM, and battery as described in the procedures.

ALERT

TRANSDUCER

ASSEMBLY

REAR

HOUSING

T191_alert_rem.eps

PRELIMINARY

6881039B15 August 01, 2001 25

Disassembly Product Family C25 and C43

Removing and Replacing the Transceiver Board

This product contains static-sensitive devices. Use anti-static handling procedures

G

to prevent electrostatic discharge (ESD) and component damage.

1. Remove the battery, SIM, and rear housing as described in the procedures.

2. Using the flat end of the disassembly tool, carefully loosen the transceiver
board from the front housing.

TRANSCEIVER BOARD

DISASSEMBLY TOOLFRONT HOUSING

T191_pcb_rem.eps

Figure 14. Removing the transceiver board

3. Lift the transceiver board completely away from the front housing as shown
in Figure 14.

4. To replace, align the transceiver board with the front housing and gently press
into place.



Ensure the keypad is correctly positioned in the front housing relative to the
transceiver board. Verify operation of the keys after replacing the transceiver board.

5. Replace the rear housing, SIM, and battery as described in the procedures.

PRELIMINARY

26 August 01, 2001 6881039B15

Level 1 and 2 Service Manual Disassembly

Removing and Replacing the RTC Battery

1. Remove the battery, SIM, rear housing, and transceiver board as described in
the procedures

2. Use the flat end of the disassembly tool to pry the real time clock (RTC) battery
from its socket on the transceiver board. See Figure 15.

.

G

Dispose of used batteries according to the manufacturer’s instructions.

TRANSCEIVER

BOARD

DISASSEMBLY

RTC BATTERY

Figure 15. Removing the RTC battery

TOOL

T191_rtcbatt_rem.eps

3. To replace, align the new RTC battery with its socket so its positive terminal
is facing upward, then snap the battery in place until it is completely seated
in the socket.

4. Replace the transceiver board, rear housing, SIM, and battery as described in
the procedures.

PRELIMINARY

6881039B15 August 01, 2001 27

Disassembly Product Family C25 and C43

Removing and Replacing the Keypad

1. Remove the battery, SIM, rear housing, and transceiver board, as described in
the procedures

.

DISASSEMBLY TOOL

Figure 16. Removing the keypad

2. Lift the keypad from the front housing as shown in Figure 16.

3. To replace, insert the keypad into the front housing. Ensure the keys align
properly with the openings and the keypad is fully seated in the front housing.

4. Replace the transceiver board, rear housing, SIM, and battery as described in
the procedures.

5. Verify correct operation.

KEYPAD

FRONT HOUSING

T191_keypad_rem.eps

PRELIMINARY

28 August 01, 2001 6881039B15

Level 1 and 2 Service Manual Disassembly

Removing and Replacing the Earpiece Speaker

1. Remove the battery, SIM, rear housing, and transceiver board as described in
the procedures.

EARPIECE

SPEAKER

G

DISASSEMBLY TOOL

Figure 17. Removing the earpiece speaker

2. Using the flat end of the disassembly tool, pry the earpiece speaker from its
cavity in the front housing.

The earpiece speaker is fastened to the front housing with adhesive. Exercise care
when removing to prevent damage to the front housing.

3. To replace the earpiece speaker, remove the protective backing from the new
earpiece speaker, then press the earpiece speaker into place in its front housing
cavity. Be sure the speaker is straight, fully seated within the cavity, and
positioned so its terminals will contact the transceiver board when reassem­bled.

4. Replace the transceiver board, rear housing, SIM, and battery as described in
the procedures.

FRONT HOUSING

T191_speaker_rem.eps

PRELIMINARY

6881039B15 August 01, 2001 29

Disassembly Product Family C25 and C43

Removing and Replacing the Microphone and Microphone Grommet

This product contains static-sensitive devices. Use anti-static handling procedures

G

to prevent electrostatic discharge (ESD) and component damage.

1. Remove the battery, SIM, rear housing, and transceiver board as described in
the procedures

.

MICROPHONE

ASSEMBLY

PLASTIC

TWEEZERS

MICROPHONE

SOCKET

MICROPHONE

GROMMET

TRANSCEIVER

BOARD

Figure 18. Removing the microphone and microphone grommet

2. Using the plastic tweezers, carefully pull the microphone assembly from its
socket on the transceiver board. The microphone assembly should come out of
its socket easily. See Figure 18.

3. Separate the microphone from the microphone grommet.

4. To replace, insert the microphone into the microphone grommet so the termi­nals on the bottom of the microphone face outward. Ensure the microphone is
straight and pushed completely into the grommet.

MICROPHONE

T191_mic_rem.eps

PRELIMINARY

30 August 01, 2001 6881039B15

Level 1 and 2 Service Manual Disassembly

5. Align the microphone assembly with the microphone socket press into place
until fully seated.

The microphone assembly is keyed to fit the microphone socket only one way. Be



sure the opening in the microphone grommet is positioned to face the opening in
the housing when reassembled.

6. Replace the transceiver board, rear housing, SIM, and battery as described in
the procedures.

Removing and Replacing the Keypad Switch Dome Array

1. Remove the battery, SIM, and transceiver board as described in the procedures.

G

DISASSEMBLY

TOOL

SWITCH

DOME

ARRAY

TRANSCEIVER

BOARD

T191_switchdome_rem.eps

Figure 19. Removing the keypad switch dome array

2. While holding the transceiver board stationary, carefully work the flat end of
the disassembly tool under a corner of the keypad switch dome array as shown
in Figure 16.

3. Slowly peel the keypad switch dome array from the transceiver board to
remove. Discard the keypad switch dome array just removed.

Do not touch the adhesive on the back of the keypad switch dome array or poor
adhesion and improper operation may result.

4. To replace, remove the protective backing from a new keypad switch array.

5. Align the new keypad switch dome array with the transceiver board.

PRELIMINARY

6881039B15 August 01, 2001 31

Disassembly Product Family C25 and C43

6. Apply even pressure across the entire surface of the switch dome array to
ensure proper adhesion.

7. Replace the transceiver board, rear housing, SIM, and battery as described in
the procedures.

8. Verify correct operation.

PRELIMINARY

32 August 01, 2001 6881039B15

Level 1 and 2 Service Manual SIM Card and Identification

SIM Card and Identification

SIM Card

A SIM (Subscriber Identity Module) card 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 card 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 net-

work.

Identification

Each Motorola GSM device is labelled with a variety of identifying numbers. The
following information describes the current identifying labels.

Mechanical Serial Number (MSN)

The Mechanical Serial Number (MSN) is an individual unit identity number and
remains with the unit throughout the life of the unit.

The MSN can be used to log and track a unit on Motorola's Service Center Database.

The MSN is divided into 4 sections as shown in Figure 20.

MSN 10 Digits

3 Digits 1 Digit 2 Digits 4 Digits

APC DC DC SNR

Account Product Code

i.e. StarTAC Phone130

Figure 20. MSN Label Breakdown

TM

Distribution Center
i.e. Easter Inch

Date Code: Year and
Month of Shipment

Unit's individual serial
number

000807-A

PRELIMINARY

6881039B15 August 01, 2001 33

SIM Card and Identification Product Family C25 and C43

International Mobile Station Equipment Identity (IMEI)

The International Mobile station Equipment Identity (IMEI) number is an individ­ual number unique to the PCB and is stored within the unit's memory. The following
diagram illustrates the various parts of this number.

IMEI 16 Digits

6 Digits 2 Digits 6 Digits 2 Digits

TAC FAC SNR IU

Type Approval Code Distribution Center

factory code

Figure 21. IMEI Label Breakdown

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.

Individual PCB Serial
Number

Internal Use - spare
digits

000808-O

PRELIMINARY

34 August 01, 2001 6881039B15

Level 1 and 2 Service Manual Troubleshooting

Troubleshooting

Manual Test Mode

Motorola PF C25 and C43 telephones are equipped with a manual test mode
capability. This allows service personnel to verify functionality and perform fault
isolation by entering keypad commands.

To enter the manual test command mode, a GSM / DCS test SIM must be used.

1. Press , to turn the phone OFF.

2. Remove the battery as described in the procedures.

3. Remove the customer’s SIM card from the phone as described in the proce­dures.

4. Insert the test SIM into the SIM slot.

5. Replace the battery as described in the procedures.

6. Press , to turn the phone ON.

Press and hold the # button for approximately 3 seconds until TEST displays on the
screen. The phone may now be issued test commands listed in Table 2.

Manual Test Mode Commands

Table 2. Test Commands

Test Command Test Function/Name

*#300# OK List Software and Hardware version
*#301# OK Full keypad functional test
*#302# OK Acoustic Test

1 - Greeting
2 - Main Volume Gain
3 - Input Cal
4 - Output Cal
5 - Side In Gain
6 - Vox Gain
7 - Min Mic Energy
8 - More

(a) - In Volume Gain
(b) - Aux Volume Gain
(c) - Silence Prd
(d) - Supp Prd
(e) - In Volume
(f) - Out Volume
(g) - Icon
(h) - Image

(i) - Animation
#303# OK Settings Saved
*#307# OK Engineering Test Mode
#400# OK ADC, Cal val
*#402# OK Adjust display Intensity/Contrast
*#403# OK List the Manufacturing Information
1998 0722 OK Master Unlock code for Phone and Sim Lock

1

1

1

1. Use with care - Contains Calibration factors

PRELIMINARY

6881039B15 August 01, 2001 35

Troubleshooting Product Family C25 and C43

Troubleshooting Chart

Table 3. PF C25 and C43 Telephones: Level 1 and 2 Troubleshooting Chart

SYMPTOM PROBABLE CAUSE VERIFICATION AND REMEDY

1. Telephone will not turn on or stay on. a) Battery either discharged or

2. Telephone exhibits poor reception or
erratic operation such as calls frequently
dropping or weak or distorted audio.

3. Display is erratic, or provides partial or
no display.

4. Incoming call alert transducer audio
distorted or volume is too low.

5. Telephone transmit audio is weak.
(usually indicated by called parties
complaining of difficulty in hearing voice).

6. Receive audio from earpiece speaker is
weak or dist orted.

defective.

b) Battery terminals open or
misaligned.

c) Transceiver board assembly
defective.

a) Antenna assembly defective. Check to make sure that the antenna terminal

b) Transceiver board assembly
defective.

Transceiver board assembly defective. Replace the transceiver board assembly (refer

a) Defective alert transducer. Replace alert transducer according to the

b) Faulty transceiver board assembly. Replace the transceiver board assembly (refer

a) Microphone misaligned or
defective.

b) Transceiver board assembly
defective.

a) Earpiece speaker defective. Temporarily replace the LCD speaker assembly

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.

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.

Remove the transceiver board assembly.
Substitute a known good assembly and
temporarily reassemble the unit. Depress the
PWR button; if unit turns on and stays on,
disconnect the dc po wer s ource and reasse mble
the telephone with the new transceiver board
assembly. V erif y that the fault ha s be en cle are d.

makes proper conta ct with the tr ansceiv er boa rd
assembly. If connected properly, substitute a
known good antenna. If the f au lt is sti ll pres en t,
proceed to b.

Replace the transceiver board assembly (refer
to 1c). Verify that the fault has been cl ea red and
reassemble the unit with the new transceiver
board assembly.

to 1c). Verify that the fault has been cl ea red and
reassemble the unit with the new transceiver
board assembly.

procedures. If fault still present, proceed to b.

to 1c). Verify that the fault has been cl ea red and
reassemble the unit with the new transceiver
board assembly.

Ensure microphone is correctly positioned in
socket. If fault still present, replace the
microphone as described in the procedures. If
fault is not cleared, proceed to b.

Replace the transceiver board assembly (refer
to 1c). Verify that the fault has been cl ea red and
reassemble the unit with the new transceiver
board assembly.

with a known good assembly. Ensure good
connection. Place a c all an d verify improv em en t
in earpiece audio . If fault is cleared, reassemble
the phone with the good assembly. If fault is not
cleared, proceed to b.

PRELIMINARY

36 August 01, 2001 6881039B15

Level 1 and 2 Service Manual Troubleshooting

Table 3. PF C25 and C43 Telephones: Level 1 and 2 Troubleshooting Chart (Continued)

SYMPTOM PROBABLE CAUSE VERIFICATION AND REMEDY

b) Transceiver board assembly
defective.

7. Telephone will not recognize or accept
SIM card.

8. Vibrator feature not functioning. a) Vibrator defective. Replace vibrator as described in the

9. Internal Charger not working. Faulty charger circuit on transceiver

10. No or weak audio when using headset. a) Headset plug not fully inserted. Ensure the headset plug is fully seated in the

a) SIM card defective. Check the SIM card contacts for dirt. Clean if

b) Transceiver board assembly
defective.

b) Transceiver board assembly
defective.

board assembly.

b) Faulty jack on transceiver board
assembly.

Replace the transceiver board assembly (refer
to 1c). Verify that the fault has been cl ea red and
reassemble with the new transceiv er boa rd
assembly.

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. If the SIM card is no t at fault, proceed
to b.

Replace the transceiver board assembly (refer
to 1c). Verify that the fault has been cl ea red and
reassemble the unit with the new transceiver
board assembly.

procedures. If the fault has not been cleared,
proceed to b.

Replace the transceiver board assembly (refer
to 1c). Verify that the fault has been cl ea red and
reassemble the unit with the new transceiver
board assembly.

insert a known good discharged battery.
Connect a known good charger and verify
battery is being charged. If fault still present,
replace the transc eiver board assembly (refer to
1c). Verify that the fault has been cleared and
reassemble the unit with the new transceiver
board assembly.

jack.
Replace the transceiver board assembly (refer

to 1c). Verify that the fault has been cl ea red and
reassemble the unit with the new transceiver
board assembly.

PRELIMINARY

6881039B15 August 01, 2001 37

Troubleshooting Product Family C25 and C43

Programming: Software Upgrade and Flexing

The following hardware codes must be observed when flashing phones:

Hardware

Code

ID1 EMEA
ID2 Asia

Contact your local technical support engineer for information about equipment and
procedures for flashing and flexing.

Region

PRELIMINARY

38 August 01, 2001 6881039B15

Level 1 and 2 Service Manual Part Number Charts

Part Number Charts

The following charts are provided as a reference for the parts associated with PF
C25 and C43 telephones.

Exploded View Diagram

1

8

2 9

3 10

4

5 6

6 6

6 6

7 6

Figure 22. Exploded View Diagram

11

12

13

T191_expl_view.eps

PRELIMINARY

6881039B15 August 01, 2001 39

Part Number Charts Product Family C25 and C43

Exploded View Parts List

Table 4. Exploded View Parts List

Item

Number

1 see Table 5 Front housing
2 23.40051.011 Earpiece speaker
3 23.60021.001 Alert transducer
4 23.46003.001 Vibrator Assembly
5 25.90020.001 Antenna
6 86.00T03.2P1 Screw, Torx T5 (6 each)
7 1389964L01 Escutcheon
8 see Table 5 Keypad

9 see Table 5 Transceiver board assembly
10 23.42021.001 Microphone
11 47.G1703.001 Microphone grommet
12 see Table 5 Rear housing
13 see Table 6 Battery

not shown 23.20059.001 RTC battery

Part Number Description

Item

Number

Part Number Description

Notes: 1. Not available as spares in EMEA Service markets.

There is a danger of explosion if the Nickel Metal Hydride battery pack is replaced
incorrectly. Replace only with the same type of battery or equivalent as recommended

E

by the battery manufacturer. Dispose of used batteries according to the manufac­turer’s instructions.

To order parts you can use the following link:

https://wissc.motorola.com/wissc_root/main/BrowserOK.html

A password is required.

For information on ordering parts for EMEA region please call [phone]

PRELIMINARY

40 August 01, 2001 6881039B15

Level 1 and 2 Service Manual Part Number Charts

Model-dependent Part Numbers

Table 5. Model-dependent Part Numbers

Item

Number

1 Front housi ng, C25, Frosted Silver 60.G1703.012
1 Front housi ng, C 25, Gr ap hite Gray 60.G1703.022
1 Front housi ng, C 25, Mo ons ton e Blue 60.G1703.032
1 Front housi ng, C43, Esk im o White
1 Front housi ng, C43, Smoke Gray

1 Front housi ng, C 43, Mo rning Indigo
12 Rear housing, C25, Frosted Silver 60.G1704.002
12 Rear housing, C43,

8 Keypad English - C25 47.G1701.001

8 Keypad Traditional Chinese - C25 47.G1701.012

8 Keyp ad Sim pli fie d Chi nes e - C25 47.G1701.022

8 Keypad English - C43 42.G2202.001

8 Keypad Traditional Chinese - C43 42.G2202.012

8 Keyp ad Sim pli fie d Chi nes e - C43 42.G2202.022

9 PCB Assembly Main Board - C25 55.G2201.001

9 PCB Assembly Main Board - C43 55.G1701.001

- Transceiver, C25, Graphite Gray S. Asia SUG2137AA

- Transceiver, C25, Frosted Silver, S. Asia SUG2138AA

- Transceiver, C25, Moonstone Blue, S. Asia SUG2139AA

- Transceiver, C25, Graphite Gray, Taiwan SUG2140AA

- Transceiver, C25, Frosted Silver, Taiwan SUG2141AA

- Transceiver, C25, Moonstone Blue, Taiwan SUG2142AA

- Transceiver, C25, Graphite Gray, Hong Kong SUG2143AA

- Transceiver, C25, Frosted Silver, Hong Kong SUG2144AA

- Transceiver, C25, Moonstone Blue, Hong Kong SUG2145AA

- Transceiver, C25, Graphite Gray, PRC SUG2300AA

- Transceiver, C25, Frosted Silver, PRC SUG2301AA

- Transceiver, C25, Moonsto ne Blue, PRC SUG2302AA

- Transceiver, C25, Frosted Silver, Li-Ion SUG2386AA

- Transceiver, C25, Moonstone Blue, Li-Ion SUG2387AA

- Transceiver, C25, Graphite Gray, Li-Ion SUG2388AA

- Transceiver, C43, Morning Indigo, S. Asia SUG2303AA

- Transceiver, C43, Eskimo White, S. Asia SUG2304AA

- Transceiver, C43, Smoke Gray, S. Asia SUG2305AA

Part Description Part Number

PRELIMINARY

6881039B15 August 01, 2001 41

Part Number Charts Product Family C25 and C43

Accessories

Table 6. Accessories

Part Description Part Number

Battery, EMEA, 550 mAh NiMH SNN5626
Battery, S. Asia, 550 mAh NiMH SNN5623
Battery, S.Asia, 600mAh Li-Ion SNN5647
Battery, China, 600 mAh Li-Ion SNN5648
Battery Charger, Hong Kong SPN4984A
Battery Charger, China SPN4985A
Battery Charger, US SPN4987A
Battery Charger, Europe SPN4989A
Battery Charger, UK SPN4990A
Adapter, Euro Plug SPN4940
Vehicle Power Adapter SYN7818
Easy-Install Hands Free Car Kit (analog audio) SYN8597
Headset Ear bud – Silver AAYN4264A
Lanyard SYN8392
Belt Clip, Black SYN8631
Pouch, Leather, Black MOTFL0074K
Pouch, Black & Light G rey w/ plastic front MOTFQ0075M
Pouch, Light Blue w/velcro MOTPT0076M
Pouch, Medium Blue MOTPT0076M

Related Publications

Motorola Timeport 191 Wireless Phone User Guide, English 9888816L01
Motorola Timeport 190 Wireless Phone User Guide English 9889928L01

PRELIMINARY

42 August 01, 2001 6881039B15

1 and 2
Index

Level 1 and 2 Service Manual Index

C25 and C43
6881039B15

Index

A

accessories

part numbers
alert modes
alert transducer

removing
antenna, removing and replacing

B

battery

function

15

gauge

removing

C

caller ID 7
Canadian Interference-Causing Equipment regulations
changes

product
closed user group
commands, manual test mode
controls
conventions
copyrights

9

computer software

41

15

24

22

15

18

1

7

34

3

2

I

identification 32

international mobile station equipment identity
mechanical serial number
product

33

IMEI
Introduction

1

1

32

K

keypad switch dome array, remov in g and rep laci ng 30
keypad, removing and replacing

27

L

LCD 11
liquid crystal display (LCD)

11

M

manual test mode 34
microphone, removing and replacing

1

MSN

32

29

N

names

product

1

O

overview 6

33

D

disassembly 18
display animation

8

E

earpiece speaker, removing and replacing 28
exploded view diagram
exploded view parts list

38

39

F

FCC rules 1
features

6881039B15 August 01, 2001 Index-1

6

call diverting

caller ID

text entry

voice recognition

Wireless Access Protocol (WAP)

8

7

7

7

7

P

part numbers

accessories

38

parts

exploded view diagram
exploded view parts list

product

changes
identification
names

publications, related

41

38

39

1

1

1

41

R

rear escutcheon

removing

rear housing

removing

regulatory agency compliance

20
20

1

PRELIMINARY

Index Product Family C25 and C43

related publications 41
removing

alert transducer
antenna
battery
earpiece speaker
keypad
keypad switch dome array
microphone
rear escutcheon
rear housing
SIM card
transceiver board

replacing

antenna
earpiece speaker
keypad
keypad switch dome array
microphone

revisions

service manual

22

15

27

22

27

24

29

20

20

19

29

3

S

serial number

mechanical

service manual

about
revisions
scope

service policy

customer support
out of box failure
product support

shut down

upon battery removal

SIM card

removing
replacing

support

customer
product

32

2

3

2

3

3

3

32

19

19

4

3

28

25

28

4

15

30

30

manual test mode commands
troubleshooting chart

35

V

voice recognition 7

W

WAP (Wireles s Access Protocol) 7
warranty service
Wireless Access Protocol (WAP)

3

7

34

T

test equipment 17
text entry
tools
transceiver board

troubleshooting

Index-2 August 01, 2001 6881039B15

7

17

removing

25

34

manual test mode

PRELIMINARY

34

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.

ã 2001 Motorola, Inc.

All rights reserved.

Personal Communications Sector,

1500 Gateway Blvd.

Boynton Beach, FL 33426-8292

Printed in U.S.A. 08/01

@6881039B15@

6881039B15-O