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User Manual
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
Revision 0
EB-GD87
EB-GU87
Tx Frequency Range:
Rx Frequency Range:
Tx / Rx separation
RF Channel Bandwidth
Number of RF channels
Speech coding
Operating temperature
Type
RF Output Power
Modulation
Connection
Voice digitizing
Transmission speed
Signal Reception
Antenna Impedance
(External Connector)
Antenna VSWR
Dimensions
(excluding
antenna)
Volume
Weight
Main Display
Sub Display
Illumination
Keys
SIM
External DC Supply
Voltage
Battery
Standby Time
Talk Time
Talk and standby time will be dependent on network conditions, SIM card, backlight usage
and network condition.
WARNING
© 2002
Development of Europe Ltd. All rights reserved.
Unauthorized copying and distribution is a violation
of law.
Order Number: MMCD021001C8
Digital Cellular Phone
900 MHz
1800 MHz
1710 -1785 MHz
880 - 915MHz
1805 -1880 MHz
925 - 960 MHz
45 MHz
95 MHz
200 kHz
174
374
Full rate/Half rate/Enhanced Full rate
-10 °C to +55 °C
Class 4 Handheld
Class 1 Handheld
2 W maximum
1 W maximum
GMSK (BT = 0.3)
8 ch / TDMA
13 kbps RPE-LTP / 13 kps ACLEP / 5.6 kps CELP / VSLEP
270.833 kbps
Direct conversion
50
< 2.1 : 1
Height: 97.5 mm
Width: 49 mm
Depth: 23 mm
89 cc
103 g
LCD, 176 x 132 pixels, 65,536 colours
LCD, 96 x 28 pixels, monochrome
8 LEDs for Keypad Backlighting (Green)
1 LED for LCD Backklighting (White)
2 LEDs for Incoming call (Green) and Charging (Red)
17-key Keypad, Navigation key, 2 shutter keys
3 V Plug-in type only
5.8 V
3.7 V nominal, 720mAh, Li-Ion
75 - 220 hrs
1.6 - 7.0 hrs
Matsushita
Mobile
1900 MHz
1850 - 1910 MHz
1910 - 1990 MHz
60 MHz
299
Class 1 Handheld
1 W maximum
Communications
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Table of Contents
Related Manuals for Panasonic EB-GD87
Summary of Contents for Panasonic EB-GD87
- Page 1 Order Number: MMCD021001C8 Digital Cellular Phone EB-GD87 EB-GU87 900 MHz 1800 MHz 1900 MHz 1710 -1785 MHz 1850 - 1910 MHz Tx Frequency Range: 880 - 915MHz 1805 -1880 MHz 1910 - 1990 MHz Rx Frequency Range: 925 - 960 MHz...
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Page 2: Table Of Contents
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. -
Page 3: Introduction
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. -
Page 4: General Description
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: •... - Page 5 GENERAL DESCRIPTION 2.3.2. GU87 ITEM DESCRIPTION PART NUMBER Main Unit EB-GU87 Battery, Standard EB-BSU87 Travel Charger EB-CA370 Document Pack MMCD021001C8 Section 2 Issue B Service Manual – 3 – Revision 0...
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Page 6: Operating Instructions
OPERATING INSTRUCTIONS 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. -
Page 7: Technical Description
TECHNICAL DESCRIPTION 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: E-GSM 900 880-915 MHz 925-960 MHz... -
Page 8: Disassembly / Reassembly
DISASSEMBLY / REASSEMBLY INSTRUCTIONS 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: WARNING The equipment described in this manual contains polarised capacitors utilising liquid electrolyte. -
Page 9: Disassembly
DISASSEMBLY / REASSEMBLY INSTRUCTIONS 5.2. Disassembly 5.2.1. Lower Case Removal Remove the battery from the phone. Remove the two grey screw caps and discard Remove the four case screws and retain for re-use. 10631-1 Separate the case and cover using the Separation Tool as shown . 10645-1 5.2.2 Antenna Removal... - Page 10 DISASSEMBLY / REASSEMBLY INSTRUCTIONS 5.2.3 Speaker Removal Using tweezers lift the single lug on the speaker holder to release. Remove the holder and speaker. 10634-1 5.2.4. Vibrate Motor Removal 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.
- Page 11 DISASSEMBLY / REASSEMBLY INSTRUCTIONS 5.2.6. Keypad and Magnet Removal Remove the keypad by pressing on the navigation key until the membrane can be peeled away from the case front. 10637-1 5.2.7. Display Removal Open the phone Remove the four grey screw caps and discard. Remove and retain the four screws.
- Page 12 DISASSEMBLY / REASSEMBLY INSTRUCTIONS 5.2.8 Flexi-PCB Removal Open the phone Disconnect the receiver and camera connections. Using a small screwdriver or similar blunt object press the lugs on the side of the Flexi-PCB to release it from the upper front cover. 10639-1 5.2.9 Sub-LCD Removal...
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Page 13: Reassembly
DISASSEMBLY / REASSEMBLY INSTRUCTIONS 5.2.11 Hinge Removal Open the phone. From the hinge cavity press the retaining lugs on the hinge pins to release the hinge pins. Note that the hinge pins are different lengths and must be replaced in their original positions. 10641-1 5.3. -
Page 14: Repair Procedures
REPAIR PROCEDURES 6 REPAIR PROCEDURES 6.1. Introduction This section provides information on testing the telephone. The layout is as follows: Section 6.2: Lead Free (PbF) solder: Identification and repair of PCBs using Pbf solder. Section 6.3 External testing: describes equipment requirements and general set up procedure. Section 6.4 Complete Unit Test Setup: describes how the items of test equipment are used together and general set up procedure. -
Page 15: Power Supply
REPAIR PROCEDURES 4 . 8 . 2 8 FRONT REAR 10016-1 Figure 6.1: Interface Box IFB003 / IFB004 Personal Computer (PC) The PC (IBM compatible) is used as a Unit Under Test controller. This, in conjunction with the channel box software, allows all of the test facilities normally provided through the keypad of the Unit Under Test. - Page 16 REPAIR PROCEDURES RF Adaptor / Baseband Jig (Part No. JT00087) The RF Adaptor / Baseband Jig provides the connections between the test equipment and the phone for unit testing. It also provides power supply, via the Interface Box, for the phone. 10650-1 Figure 6.3: RF Adaptor / Baseband Jig Light Box...
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Page 17: Test Equipment Setup
RS232 interface cable (9 pin straight through connection) GSM test station. Panasonic Channel Box software for Microsoft Windows ®. The Channel Box software should be installed onto the main drive of the personal computer. The RF cable is connected to the GSM test station via a suitable adaptor. The 12 V supply is connected to the rear socket of the Interface box. - Page 18 Check that the handset is powered-up (LCD is backlit and all LEDs are on). The Channel Box should also display handset IMEI number and Firmware version information in the left-hand column of the screen. A toolbar should also be visible in the top panel where the Panasonic logo is displayed. Figure 6.7: Channel Box Toolbar Additional user instructions are provided in the documentation files supplied with the Channel Box.
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Page 19: Interfaces And Test Points
INTERFACES AND TEST POINTS 7 INTERFACES AND TEST POINTS 7.1. Interfaces 7.1.1 External I/O (PHONE SHOWN IN CLOSED POSITION) 10647-1 Figure 7.1: External I/O Connector Name HH <==>EXT Function H/H Circuit AGND Audio Ground 10095-2 TX-AUDIO <== Sending Audio 10476-2 RX-AUDIO ==>... - Page 20 INTERFACES AND TEST POINTS Name HH <==>EXT Function H/H Circuit DTR / <== RS232C: Data Terminal Ready / DATA_MODE1 Data Accessory recognition 1 10479-1 <== RS232C: Request to Send 10479-1 CTS / PA-ON ==> PA control signal for test trigger (L: off, H 2.8V: on) 330p 10481-1...
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Page 21: Sim Interface
INTERFACES AND TEST POINTS Signal PCB-LCD Function Connection Status nRESET -> negative Reset Signal CALYPSO nRESET Vsync -> Vertical Synchronised signal dummy Reset signal 7.1.3 Sub LCD Module Interface Signals Signal PCB-LCD Function Connection Status -> COMMON GROUND POWER SUPPLY IOTA D28IO SERIAL DATA CALYPSO DOUT... -
Page 22: Test Points
INTERFACES AND TEST POINTS 7.2. Test Points TP2001 BDLIP TP2002 BDLIM TP2003 BDLQP TP2004 BDLQM TP2101 CALYPSO TDI TP2102 CALYPSO TDO TP2103 CALYPSO TCK TP2510 TP2104 CALYPSO TMS TP2105 CALYPSO nBSCAN TP2106 CALYPSO SSDX TP2504 CALYPSO SSDR TP2107 TP2108 CALYPSO SSCLK TP2503 TP2109 CALYPSO SSRST... -
Page 23: Calibration Procedures
CALIBRATION PROCEDURES 8 CALIBRATION PROCEDURES 8.1. Introduction NOTE: See Section 6 for a list of the equipment and setup procedures required to perform the following adjustment and calibration procedures. The following procedures MUST be performed after replacement or repair of the PCB. Failure to do so may result in incorrect operation of the telephone. - Page 24 CALIBRATION PROCEDURES E-GSM 900 The following table shows the measurement limits according to power level: Output Power (dBm) Power Level Target (PL) Nominal 32.75 32.5 33.0 31.0 30.5 31.5 29.0 28.5 29.5 26.5 27.5 24.5 25.5 22.5 23.5 20.5 21.5 18.5 19.5 16.5...
- Page 25 This procedure requires the use of a Gigatronics 8541C power meter. NOTE: To ensure that the telephone operates within set SAR margins, Panasonic recommends that a power meter capable of measurement to an accuracy of ±0.2 dB is used when calibrating power levels. Use of a less accurate power meter may result in the telephone failing to meet SAR standards.
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Page 26: Rssi
This procedure is used to adjust or verify each calibration channel in turn. NOTE: To ensure that the telephone operates within set SAR margins, Panasonic recommends that a power meter capable of measurement to an accuracy of ±0.2 dB is used when calibrating power levels. Use of a less accurate power meter may result in the telephone failing to meet SAR standards. -
Page 27: Battery Calibration
CALIBRATION PROCEDURES 8.3. Battery Calibration 8.3.1 Preliminaries There are two procedures associated with battery calibration, battery temperature and battery voltage. A dummy battery, as listed in Section 6.3.2, is required to perform these checks. Connect the dummy battery, telephone and PC as shown in the diagram below. Figure 8.1: Battery calibration test connections Set the Interface box to POWER ON, IGN and EXT PWR OFF. -
Page 28: Replacement Parts List
REPLACEMENT PARTS LIST 9 REPLACEMENT PARTS LIST 9.1. Upper Case Parts M130 Ref. No. Part No. Part Name & Description Part No Description GD87CAS01S SERVICE CASE ASSEMBLY M103 M102 UPPER BACK CASE M202 LOWER BACK CASE M121 CAMERA CUSHION M107 SUB LCD CUSHION M102 M121... -
Page 29: Pcb Variants
GD87BRD001C PCB ASSY LANGUAGE PACK C GD87BRD001D PCB ASSY LANGUAGE PACK D Network-specific (SIM-locked) Assemblies available - please refer to Panasonic spares representative for details. Figure 9.2: Lower Case Parts MMCD021001C8 Section 9 Issue B Service Manual – 41 –... - Page 37 MMCDE UK021002000PJ...