Panasonic EB-GD87 Bedienungsanleitung

Issue B

Revision 0

Unauthorized copying and distribution is a violation

of law.

PROVISIONAL INFORMATION

Order Number: MMCD021001C8

Digital Cellular Phone

EB-GD87

EB-GU87

Talk and standby time will be dependent on network conditions, SIM card, backlight usage

and network condition.

900 MHz 1800 MHz 1900 MHz

Tx Frequency Range: 880 - 915MHz 1710 -1785 MHz 1850 - 1910 MHz

Rx Frequency Range: 925 - 960 MHz 1805 -1880 MHz 1910 - 1990 MHz

Tx / Rx separation 45 MHz 95 MHz 60 MHz

RF Channel Bandwidth 200 kHz

Number of RF channels 174 374 299

Speech coding Full rate/Half rate/Enhanced Full rate

Operating temperature -10 °C to +55 °C

Type Class 4 Handheld Class 1 Handheld Class 1 Handheld

RF Output Power 2 W maximum 1 W maximum 1 W maximum

Modulation GMSK (BT = 0.3)

Connection 8 ch / TDMA

Voice digitizing 13 kbps RPE-LTP / 13 kps ACLEP / 5.6 kps CELP / VSLEP

Transmission speed 270.833 kbps

Signal Reception Direct conversion

Antenna Impedance 50 :

(External Connector)

Antenna VSWR < 2.1 : 1

Dimensions Height: 97.5 mm

(excluding Width: 49 mm

antenna) Depth: 23 mm

Volume 89 cc

Weight 103 g

Main Display LCD, 176 x 132 pixels, 65,536 colours

Sub Display LCD, 96 x 28 pixels, monochrome

Illumination 8 LEDs for Keypad Backlighting (Green)

1 LED for LCD Backklighting (White)

2 LEDs for Incoming call (Green) and Charging (Red)

Keys 17-key Keypad, Navigation key, 2 shutter keys

SIM 3 V Plug-in type only

External DC Supply

Voltage 5.8 V

Battery 3.7 V nominal, 720mAh, Li-Ion

Standby Time 75 - 220 hrs

Talk Time 1.6 - 7.0 hrs

WARNING

This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not

contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.

Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or

repair the product or products dealt with in this service manual by anyone else could result in serious injury or death.

Issue B – ii – MMCD021001C8

Revision 0 Service Manual

PROVISIONAL INFORMATION

COMPANY LIABILITY

Every care has been taken to ensure that the contents of this manual give an accurate representation of the equipment.

However, Matsushita Mobile Communications Development of Europe Ltd. accepts no responsibility for inaccuracies which

may occur and reserves the right to make changes to the specification or design without prior notice.

The information contained in this manual and all rights in any design disclosed therein, are and remain the exclusive property

of Matsushita Mobile Communications Development of Europe Ltd.

Other patents applying to material contained in this publication:

CP8 PATENTS

Comments or correspondence concerning this manual should be addressed to:

Matsushita Mobile Communications Development of Europe Ltd.,

2 Gables Way

Thatcham,

Berkshire.

RG19 4ZB.

ENGLAND

CONTENTS Page Page

1 INTRODUCTION 1

1.1 Purpose of this Manual 1

1.2 Structure of the Manual 1

1.3 Servicing Responsibilities 1

2 GENERAL DESCRIPTION 2

2.1 General 2

2.2 Features 2

2.3 Telephone Handset Main Kit 2

3 OPERATING INSTRUCTIONS 3

3.1 General 3

3.2 Location of Controls 3

3.3 Liquid Crystal Display 4

3.4 Concept of Operation 5

3.5 Alpha Entry 5

3.6 Features Menu Structure 6

4 TECHNICAL DESCRIPTION 7

4.1 RF Overview 7

4.2 Transmitter 8

4.3 Receiver 9

4.4 Baseband Overview 10

4.5 Power Supplies 14

5 DISASSEMBLY / REASSEMBLY 19

5.1 General 19

5.2 Disassembly 20

5.3 Reassembly 23

6 REPAIR PROCEDURES 24

6.1 Introduction 24

6.2 Lead Free (PbF) solder 24

6.3 External Testing 24

6.4 Test Equipment Setup 27

7 INTERFACES AND TEST POINTS 29

7.1 Interfaces 29

7.2 Test Points 32

8 CALIBRATION PROCEDURES 33

8.1 Introduction 33

8.2 Carrier Power Calibration 33

8.3 RSSI 37

8.4 Battery Calibration 38

9 REPLACEMENT PARTS LIST 40

9.1 Case and Cover Parts 40

9.2 Sub-Assemblies 41

9.3 PCB Variants 42

9.4 PCB Components 42

9.5 Refurbishment Kits 44

9.6 Jigs and Tools 44

9.7 Document Packs 45

10 CIRCUIT DIAGRAMS 47

11 LAYOUT DIAGRAMS 53

INTRODUCTION

MMCD021001C8 Section 1 Issue B

Service Manual – 1 – Revision 0

PROVISIONAL INFORMATION

1INTRODUCTION

1.1. Purpose of this Manual

This Service Manual contains the information and procedures required for installing, operating and servicing the Panasonic

GSM Personal Cellular Mobile Telephone system operating on GSM Digital Cellular Networks.

1.2. Structure of the Manual

The manual is structured to provide service engineering personnel with the following information and procedures:

1. General and technical information - provides a basic understanding of the equipment, kits and options, together with

detailed information for each of the major component parts.

2. Installation and operating information - provides instructions for unpacking, installing and operating the equipment.

3. Servicing information - provides complete instructions for the testing, disassembly, repair and reassembly of each major

component part. Step-by-step troubleshooting information is given to enable the isolation and identification of a

malfunction, and thus determine what corrective action should be taken. The test information enables verification of the

integrity of the equipment after any remedial action has been carried out.

4. Illustrated parts list - provided to enable the identification of all equipment components, for the ordering of spare /

replacement parts.

1.3. Servicing Responsibilities

The procedures described in this manual must be performed by qualified service engineering personnel, at an authorised

service centre.

The service engineering personnel are responsible for fault diagnosis and repair of all equipment described in this manual.

WARNING

The equipment described in this manual contains polarised capacitors utilising liquid electrolyte. These devices are entirely safe provided

that neither a short-circuit or a reverse polarity connection is made across the capacitor terminals. FAILURE TO OBSERVE THIS

WARNING COULD RESULT IN DAMAGE TO THE EQUIPMENT OR, AT WORST, POSSIBLE INJURY TO PERSONNEL RESULTING

FROM ELECTRIC SHOCK OR THE AFFECTED CAPACITOR EXPLODING. EXTREME CARE MUST BE EXERCISED AT ALL TIMES

WHEN HANDLING THESE DEVICES.

Caution

The equipment described in this manual contains devices sensitive to electrostatic discharge (ESD). Damage can occur to these devices

if the handling procedures described in this manual are not adhered to.

Caution

This equipment contains an internal battery in addition to the external battery packs. These batteries are recyclable and should be

disposed of in accordance with local legislation. They must not be incinerated, or disposed of as ordinary rubbish.

Caution

The equipment uses a Printed Circuit Board PCB manufactured using Lead Free (PbF) solder. The procedures described in this manual

should be adhered to when repairing these items.

GENERAL DESCRIPTION

Issue B Section 2 MMCD021001C8

Revision 0 – 2 – Service Manual

PROVISIONAL INFORMATION

2 GENERAL DESCRIPTION

2.1. General

This section provides a general description and kit composition details for the Digital Cellular Phone and optional kits.

2.2. Features

The Panasonic Phone Models GD87 and GU87 are high performance, small, light, telephone handsets for business and

domestic use on General Packet Radio Service (GPRS) running on GSM networks. The following features are provided:

• Triple Band, E-GSM 900, GSM 1800 and GSM 1900 operation.

• Triple Rate, which includes Full Rate, Half rate and Enhanced Full Rate (EFR) speech, codec.

• GPRS-compatible (Class 8).

• 65,536-colour LCD Main Display and monochrome LCD Sub-Display.

• Integral Digital Camera.

• Multimedia Message Service (MMS).

• Tegic T9 Text Entry.

• Infrared communications port (IrDA).

• Voice Ringer.

• Wireless Application Protocol (WAP) Browser.

• Backup Battery.

• 16-voice polyphonic ringtones.

• Downloadable pictures, animations and polyphonic melody ring tones.

• Clock, Calculator and Currency Converter.

2.3. Telephone Handset Main Kit

Figure 2.1: Telephone Handset Main Unit Kit Contents

2.3.1. GD87

ITEM DESCRIPTION PART NUMBER

1 Main Unit EB-GD87

2 Battery, Standard EB-BSD87

3 Travel Charger EB-CAD95

- Document Pack See Section 9.

10644-1

GENERAL DESCRIPTION

MMCD021001C8 Section 2 Issue B

Service Manual – 3 – Revision 0

PROVISIONAL INFORMATION

2.3.2. GU87

ITEM DESCRIPTION PART NUMBER

1 Main Unit EB-GU87

2 Battery, Standard EB-BSU87

3 Travel Charger EB-CA370

- Document Pack

OPERATING INSTRUCTIONS

Issue B Section 3 MMCD021001C8

Revision 0 – 4 – Service Manual

PROVISIONAL INFORMATION

3 OPERATING INSTRUCTIONS

3.1. General

This section provides a brief guide to the operation and facilities available on the telephone handset. Refer to the Operating

Instructions supplied with the telephone for full operational information.

3.2. Controls and Indicators

Figure 3.1: Location of Controls and Indicators

The phone has 17-keys and Navigation key on the main keypad area. Their functions are summarised as follows:

There is a combined Voice Memo / Camera Shutter key below the Sub Display.

Navigation Key. Scrolls through options or features menu and increases or decreases volume.

Cancel Key. Used mainly to cancel the current operation and return to the previous menu level. In some menus

it has other functions.

Option key. Primarily used for accessing the Phonebook or switching character types.

Send Key. Makes a call.

End Key. Ends a call or switches the telephone on/off when pressed and held.

to Digit keys. Enter wild numbers or pauses when pressed and held. Where appropriate the key scrolls up or

down through abbreviated control names and then select to reveal the international access code “+”.

Vibrate enable/disable Key. Press and hold to enable or disable the vibrate alert.



TECHNICAL DESCRIPTION

Issue B Section 4 MMCD021001C8

Revision 0 – 8 – Service Manual

PROVISIONAL INFORMATION

4 TECHNICAL DESCRIPTION

4.1. RF Overview

4.1.1 General Specifications

The telephone is a triple band product incorporating three switchable transceivers, E-GSM 900 band,GSM 1800 (DCS 1800)

band and GSM 1900 band. The transmit and receive bands are given in the table below:

Other notable technical features are as follows:

4.1.2 Main PCB Description

All RF components are located on one side of the top half area of the Main PCB, with the baseband components (Logic

circuits) occupying the lower half of the Main PCB. The RF circuit area is shielded by two metal screens and the Logic circuits

area by one screen.

The keypad is mounted on the reverse side of the PCB.

4.1.3 Flexi-PCB

All components and the connectors for the Sub LCD module, camera, receiver, main display (x2) are located on one side of

the Flexi-PCB.

Tx Rx

E-GSM 900 880-915 MHz 925-960 MHz

GSM 1800 1710-1785 MHz 1805-1880 MHz

GSM 1900 1850-1910MHz 1910-1990MHz

E-GSM 900 GSM 1800 GSM 1900

Rx Bandwidth 35 MHz 75 MHz 60MHz

Tx Bandwidth 35 MHz 75 MHz 60MHz

Duplex Spacing 45 MHz 95 MHz 80MHz

Number of Channels 174 374 299

AFRCN (Channel Numbers) 0-124 512-885 512-885

975 - 1023

1st Tx Channel 880.2 MHz 1710.2 MHz 1850.2MHz

(Ch 975) (Ch 512) (Ch 512)

Last Tx Channel 914.8 MHz 1784.8 MHz 1909.8MHz

(Ch 124) (Ch 885) (Ch 885)

1st Rx Channel 925.2 MHz 1805.2 MHz 1930.2MHz

(Ch 975) (Ch 512) (Ch 512)

Last Rx Channel 959.8 MHz 1879.8 MHz 1989.8MHz

(Ch 124) (Ch 885) (Ch 885)

Maximum Tx Power 33.0 dBm 30.0 dBm 30.0 dBm

(Class 4) (PL5) (Class 1) (PL0) (Class 1)

Minimum Tx Power 5.0 dBm 0.0 dBm 0.0 dBm

(PL19) (PL15) (PL15)

DISASSEMBLY / REASSEMBLY INSTRUCTIONS

Issue B Section 5 MMCD021001C8

Revision 0 – 20 – Service Manual

PROVISIONAL INFORMATION

5 DISASSEMBLY / REASSEMBLY INSTRUCTIONS

5.1. General

This section provides disassembly and reassembly procedures for the main components of the telephone.

These assemblies MUST be performed by qualified service personnel at an authorised service centre.

The following Warnings and Cautions MUST be observed during all disassembly / reassembly operations:

5.1.1 ESD Handling Precautions

A working area where ESDs may be handled safely without undue risk of damage from electrostatic discharge, must be

available. The area must be equipped as follows:

Working Surfaces

All working surfaces must have a dissipative bench mat, safe for use with live equipment, connected via 1M2 resistor

(usually built into the lead) to a common ground point.

Wrist Strap

A quick release skin contact device with a flexible cord, which has an integral safety resistor of between 5k2 and 1M2, shall

be used.

Containers

All containers and storage must be of the conductive type.

WARNING

The equipment described in this manual contains polarised capacitors utilising liquid electrolyte. These devices are entirely safe provided

that neither a short-circuit nor a reverse polarity connection is made across the capacitor terminals. FAILURE TO OBSERVE THIS

WARNING COULD RESULT IN DAMAGE TO THE EQUIPMENT OR, AT WORST, POSSIBLE INJURY TO PERSONNEL RESULTING

FROM ELECTRIC SHOCK OR THE AFFECTED CAPACITOR EXPLODING. EXTREME CARE MUST BE EXERCISED AT ALL TIMES

WHEN HANDLING THESE DEVICES.

Caution

The equipment described in this manual contains electrostatic devices (ESDs). Damage can occur to these devices if the appropriate

handling procedure is not adhered to.

DISASSEMBLY / REASSEMBLY INSTRUCTIONS

MMCD021001C8 Section 5 Issue B

Service Manual – 21 – Revision 0

PROVISIONAL INFORMATION

5.2. Disassembly

5.2.1. Lower Case Removal

1. Remove the battery from the phone.

2. Remove the two grey screw caps and discard

3. Remove the four case screws and retain for re-use.

4. Separate the case and cover using the Separation Tool as shown .

5.2.2 Antenna Removal

1. Apply pressure to the lug in the direction shown to release the antenna from the case.

10631-1

10645-1

10633-1

DISASSEMBLY / REASSEMBLY INSTRUCTIONS

Issue B Section 5 MMCD021001C8

Revision 0 – 22 – Service Manual

PROVISIONAL INFORMATION

5.2.3 Speaker Removal

1. Using tweezers lift the single lug on the speaker holder to release.

2. Remove the holder and speaker.

5.2.4. Vibrate Motor Removal

1. The Vibrate motor may be lifted from the case by gently applying pressure under the body. Do not lift the unit by the

counterweight spindle as it may bend the spindle.

5.2.5 Main PCB Removal

1. Carefully hinge the Main PCB over and lay the the pcb on a flat surface ensuring no strain is placed on the flexible

connector.

2. Disconnect the flexible connector and lift the main pcb clear.

10634-1

10635-1

10636-1

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