[2] Disassembly and reassembly ........................ 3-4
Parts marked with "" are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for
maintaining the safety and performance of the set.
CHAPTER 5. SCHEMATIC DIAGRAM AND
WIRING SIDE OF P.W.BOARD
[1] Notes on schematic diagram.........................5-1
[2] Types of transistor and LED .......................... 5-1
[3] Waveforms of circuit ......................................5-2
[4] Schematic diagram/
Wiring side of P.W.Board ............................. 5-4
CHAPTER 6. OTHERS
[1] Function table of IC .......................................6-1
[2] Function table of Display .............................6-26
Parts Guide
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
Page 2
GX25
PhoneGX25Service ManualService ManualMarketE
SERVICING CONCERNS
1. When requested, back up user’s handset data using SPST (SHARP Programme Support Tool). Otherwise, before servicing, warn the user that
data in the memory may be lost during repairs.
2. Upgrade the firmware to the latest version using SPST before returning the handset to the customer.
3. After repairs, inspect the handset (phone) according to the following flowchart.
Repairs are completed.
(Fixed parts have been checked for proper operation.)
Check IMEI NO./Operator code (Destination)/
Firmware version by Identity function of SPST.
Inspect each device using performance check
adjustment function of SPST.
Carry out RF performance check with SPST.
All completed.
4. When storing or transporting a PWB, put it into a conductive bag or wrap it in aluminum foil. (C-MOS IC may be damaged by electrostatic
charges.)
5. Do not leave fingerprints, etc. on ornamental parts including a cabinet, especially clear windows for main and external displays. Wear fingerstalls
to avoid this.
Also, ensure not to leave fingerprints on the surface of main and external display panels.
6. To prevent oxidation which causes connection problems, do not touch any terminals on the electric board, microphone, vibrator, earpiece and
speaker.
When handling these parts, wear fingerstalls. Should you touch these parts, clean them with a soft dry cloth.
Always wear fingerstalls when handling a shield case on the electric board. Otherwise oxidation may occur causing handset performance deterioration.
7. The FPC is a precision device. Handle it carefully to prevent any damages.
8. Do not expose the moisture sensor to liquids.
If the sheet gets wet, red ink runs. In this case, replace the sheet with a new one.
Be careful about your perspiration.
9. Before you disassemble or reassemble handset, make sure to remove the Li-Ion battery.
10.Be sufficiently careful with static electricity of integrated circuits and other circuits. Wear static electricity prevention bands whilst servicing.
CONFIDENTIAL
i
Page 3
CONFIDENTIAL
PRECAUTIONS FOR USING LEAD-FREE SOLDER
Employing lead-free solder
1
This model employs lead-free solder.
This is indicated by the “LF” symbol printed on the PWB and in the service manual.
The suffix letter indicates the alloy type of the solder.
Example:
Indicates lead-free solder of tin, silver and copper.
Using lead-free solder
2
When repairing a PWB with the “LF” symbol, only lead-free solder should be used. (Using normal tin/lead alloy solder may
result in cold soldered joints and damage to printed patterns.)
As the melting point of lead-free solder is approximately 40ºC higher than tin/lead alloy solder, it is recommended that a
dedicated bit is used, and that the iron temperature is adjusted accordingly.
GX25
3
Soldering
As the melting point of lead-free solder (Sn-Ag-Cu) is higher and has poorer wettability (flow), to prevent damage to the land
of the PWB, extreme care should be taken not to leave the bit in contact with the PWB for an extended period of time.
Remove the bit as soon as a good flow is achieved.
The high content of tin in lead free solder will cause premature corrosion of the bit.
To reduce wear on the bit, reduce the temperature or turn off the iron when it is not required.
Leaving different types of solder on the bit will cause contamination of the different alloys, which will alter their
characteristics, making good soldering more difficult.
It will be necessary to clean and replace bits more often when using lead-free solder. To reduce bit wear, care should be
taken to clean the bit thoroughly after each use.
ii
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GX25
PhoneGX25Service ManualService ManualMarketE
CHAPTER 1. GENERAL DESCRIPTION
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE
REFER TO THE OPERATION MANUAL.
CONFIDENTIAL
[1] Specifications
General:Tri - band (GSM 900 MHz/DCS 1800 MHz/
PCS 1900MHz)
GPRS-enabled
WAP, MMS, SMS
Dimensions
(folded, excluding the aerial)
(H x W x D):92 x 46 x 23.5 mm
Weight:90 g
Battery operating
temperature:0°C - 40°C
Main display:Display dimensions: 2.0 inch
Resolution: 240 x 320 pixels
LCD display: TFT 262,144 colours with backlight
LCD back light: LED back light white colour LEDs
External display: Resolution: 72 x 12 pixels
Camera:C-MOS 350K pixels built-in camera
Powered by JBlendCopyright 1997-
LCD display: STN B/W LCD with back light
Zoom: Wide and zoom mode
[Supported 20 (when image size is
160 x 120 pixels) x zoom]
Lens: F2.8, f = 3.7 mm
TM
2004 Aplix Corporation. All rights reserved.
JBlend and all JBlend-based trademarks
and logos are trademarks or registered
trademarks of Aplix Corporation in Japan
and other countries.
Powered by Mascot Capsule /Micro3D Edition
Mascot Capsule is a registered trademark of HI Corpora-
R
R
TM
tion
C
2002-2004 HI Corporation. All Rights Reserved.
Licensed by Inter Digital Technology Corporation under one
or more of the following United States Patents and/or their
domestic or foreign counterparts and other patents pending, including U.S. Patents: 4,675,863: 4,779,262:
4,785,450 & 4,811,420.
T9 Text Input is licensed under one or more of the following:
U.S. Pat. Nos. 5,818,437, 5,953,541, 5,187,480, 5,945,928,
and 6,011,554; Australian Pat. No. 727539; Canadian Pat.
No. 1,331,057; United Kingdom Pat. No. 2238414B; Hong
Kong Standard Pat. No. HK0940329; Republic of Singapore
Pat. No. 51383; Euro. Pat. No. 0 842 463 (96927260.8) DE/
DK, FI, FR, IT, NL,PT.ES,SE,GB; Republic of Korea Pat.
Nos. KR201211B1 and KR226206B1; and additional
patents are pending worldwide.
Sound:40-polyphonic ring melodies
Mobile light:1 colours
External DC
supply voltage:5.2 V
Battery:3.7 V, 780 mAh, Li-Ion
Standby time:Up to 250 hours
Tal k time :Up to 210 minutes
Others: Side key
Infrared port 1.2 L/P (maximum distance 20 cm)
Connector for AC charger and data cable
Standard hands free connector (ø2.5)
Battery running time depends on the battery and SIM card as well as
the network conditions and usage.
Specifications for this model are subject to change without prior
notice.
Bluetooth is a trademark of the Bluetooth SIG, Inc.
The Bluetooth word mark and logos are owned by the
Bluetooth SIG, Inc. and any use of such marks by Sharp is
under license. Other trademarks and trade names are
those of their respective owners.
CP8 PATENT
This product is licensed under the MPEG-4 Visual Patent
Portfolio License for the personal and non-commercial use of
a consumer to (i) encode video in compliance with the
MPEG-4 Video Standard (“MPEG-4 Video”) and/or (ii) decode
MPEG-4 Video that was encoded by a consumer engaged in
a personal and non-commercial activity and/or was obtained
from a licensed video provider. No license is granted or
implied for any other use. Additional information may be
obtained from MPEG LA. See http://www.mpegla.com.
This product is licensed under the MPEG-4 Systems Patent
Portfolio License for encoding in compliance with the MPEG4 Systems Standard, except that an additional license and
payment of royalties are necessary for encoding in
connection with (i) data stored or replicated in physical media
which is paid for on a title by title basis and/or (ii) data which
is paid for on a title by title basis and is transmitted to an end
user for permanent storage and/or use. Such additional
license may be obtained from MPEG LA, LLC. See http://
www.mpegla.com for additional details.
1 – 1
Page 5
[2] Names of parts
1
CONFIDENTIAL
GX25
2
3
4
5
6
7
1. Earpiece
2. Navigation Keys (Arrow Keys):
Up/Down arrow keys: Displays Contacts List
Left arrow key:
Right arrow key:Displays list of Saved
3. Left Soft Key:Executes the function at the
4. Send Key:Makes or accepts calls,
5. Centre Key:Displays Main menu in
6. Voice Mail Key:Press and hold this key to
7. */Shift Key:Switches character case
8. Main Display
9. Right Soft Key:Executes the function at the
10.End/Power Key:Ends a call, turns power on/
11.Camera Key:Starts the digital camera in
12.Keypad
8
15
16
17
9
10
11
12
13
14
Moves cursor to select
menu items, etc.
entries in standby mode.
andindicate in this
manual these keys.
Displays list of Applications
in standby mode.
indicates in this manual
this key.
Pictures in standby mode.
indicates in this manual
this key.
bottom left of the screen.
views the call logs in
standby mode.
standby mode and executes
functions.
connect to the Voice mail
centre automatically.
(Depends on the SIM card.)
among four modes: Abc,
ABC, 123 and abc.
Press and hold this key on
the text entry screen to shift
the text input method
between multi-tap and T9
mode.
bottom right of the screen.
Used to access “Vodafone
live!” by opening the
browser in standby mode.
off.
standby mode.
18
20
19
21
13.#/Silent/Light Key: Switches symbol screens.
14.Microphone
15.Self-Portrait Mirror: For taking a self-portrait.
16.Camera
17.Speaker
18.Mobile Light:Used as an auxiliary light in
19.External Display
20.Handsfree Kit Connector
21.External Connector:
22.RF Connector
23.Battery Cover
24.Built-in Aerial:Warning: Do not cover the
25.Side-Up/Side-Down Keys:
26.Infrared Port:Sends and receives data via
22
23
Press and hold this key on
the text entry screen to
display the language
options screen.
Press and hold this key
during standby to switch
Profiles settings between
Normal and Silent mode.
Press, thenduring
standby to turn the
Bluetooth wireless function
on or off.
digital camera/video
camera mode, as a battery
charge indicator, or
notification for incoming
calls, data/fax calls or
messages.
Used to connect either the
charger or USB data cable.
hinge area of the phone
with your hand when in use
as this may interfere with
the performance of the
built-in aerial.
Moves cursor to select
menu items, adjusts
earpiece volume, etc.
Press and hold this key
during standby to turn the
mobile light on or off.
infrared.
24
25
26
1 – 2
Page 6
GX25
CONFIDENTIAL
[3] Quick Start Guide
The following is a sample quick start guide (Quick Start Guide for the UK model).
1 – 3
Page 7
CONFIDENTIAL
GX25
1 – 4
Page 8
GX25
[4] Optional Accessories
Li-ion Spare battery (XN-1BT30)
Cigarette lighter charger (XN-1CL30)
USB data cable (XN-1DC30)
AC charger (XN-1QC30, XN-1QC31, XN-1QC32)
Personal handsfree kit (XN-1ER20)
The above accessories may not be available in all regions.
For details, please contact your dealer.
CONFIDENTIAL
1 – 5
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CONFIDENTIAL
PhoneGX25Service ManualService ManualMarketE
CHAPTER 2. ADJUSTMENTS, PERFORMANCE CHECK, AND FIRMWARE
GX25
UPGRADE
SPST (SHARP Programme Support Tool) allows you to adjust settings, conduct performance checks, and upgrade the firmware.
[1] SHARP Programme Support Tool (SPST)
1. System requirements
• IBM PC compatible personal computer (standard COM1 115,200 bps serial port and USB required)
Recommended OS: Windows 2000/XP
Operable OS: Windows 98/98SE/ME (Downloader supports Windows 2000/XP only)
Incompatible OS: Windows 95/NT
(English, German, Italian, Spanish, French and Chinese versions)
• Data cable
<During RF adjustment>
• GSM tester: CMU200
• GPIB interface: National Instruments USB-GPIB cable (Model No.: NI GPIB-USB-B)
2. Introduction
2.1. Functions
SPST offers seven key functions:
1) Firmware download
2) User data transfer (processes all data at once but not individually.)
3) RF calibration check and test
4) Default setting
5) Identification
6) Performance check and adjustment
7) User password reset
2.2. Installation
1. Use Windows Explorer to execute the “setup.exe” file on the CD-ROM.
2. The SPST GX series setup wizard appears. Follow the installation instructions.
3. After the installation is complete, shortcuts to SPST are created on the desktop and under the “Start” — “Programs” — “GX Series“ menu. Start
SPST from the shortcuts.
2 – 1
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GX25
CONFIDENTIAL
2.3. Starting up
Connect GX series to an operable serial port of the PC with the supplied data cable. Connect the AC charger to the data cable.
Start SPST from the desktop.
1. The Input password dialogue box appears. Enter the password, select GX series from Port list box (a connected port is automatically detected),
and click “OK”. If you do not know password, click “Cancel” to exit.
When using SPST for the first time, the driver installation
starts and the following dialogue box appears.
After the installation is complete, press "Retry".
Figure 1
2. To change the password, enter the current password in Figure 1, and then click “Change Password”.
Figure 2
3. To check the usage status of tools, click “Show Repair Log” in Figure 1.
4. Click “Downloader for Emergency”.
Figure 3
The above screen appears. Select a model to use and execute the Downloader. (Use this to initialise the flash, etc.)
2 – 2
Page 11
CONFIDENTIAL
5. When the password is correct, a connection is established and the following screen appears.
Refer to the attachment 1
for the destination and
operator name.
Figure 4
Buttons
GX25
First shipped
software version:
A02-008-0099-GX25
[D, E, EP, G, PP, S]
A15-008-0100-GX25C
[C]
A02-008-0120-GX25
[GP, L, W]
A02-008-0108-GX25
[B, R]
A28-008-0121-GX25V
[V]
Default SetRefer to “4.1. Default setting”. (see page 2-5)
User Data Back-upRefer to “4.2. User data back-up”. (see page 2-6)
User Data RestoreRefer to “4.3. User data restore”. (see page 2-7)
DownloaderRefer to “4.4. Downloader”. (see page 2-8)
RF Calibration & CheckRefer to “4.5. RF calibration & check”. (see page 2-19)
RF TestRefer to “4.6. RF test tool”. (see page 2-27)
User Password ResetRefer to “4.7. Password reset”. (see page 2-33)
Performance check adjustmentRefer to “4.8. Performance check and adjustment”. (see page 2-34)
**** mode releaseRefer to “4.9. ****mode release”. (see page 2-39)
ExitEnd SPST.
1. Adjustments are required after replacing the following parts. ( )
PartsTemperature
adjustment
(Camera)
TH101
Main display unit
External display unit
Camera unit
When replacing other parts in the RF section, carry out RF calibration.
2. Click the buttons on the SPST screen for adjustments.
Temperature
adjustment
(Battery)
Main display flicker
adjustment
RF calibration
External display
contrast adjustment
3. The following screen appears.
To adjust the device, click this button
(Performance check adjustment).
Figure 5
Temperature adjustment (Camera section)
Temperature adjustment (Battery section)
Main display flicker adjustment
External display contrast adjustment
Figure 6
2 – 4
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CONFIDENTIAL
4. Functions
4.1. Default setting
SPST can restore the factory settings.
This function
1. Deletes all user data in the file system;
2. Restores all WAP settings to default; and
3. Restores the values set by the user to default.
(MEPLOCK settings, the destination and operator name do not change.)
<Operation>
1) Set the COM port on the SPST initial screen and click “Default Set”.
2) Click “Yes” to proceed. Click “No” to exit.
GX25
Figure 7
3) Click “No” to back-up the MEPLOCK data. Click “Yes” to restore default settings.
Figure 8
4) Communication starts.
Figure 9
5) The following appears when you select “Yes” in step 3 and MEPLOCK data exists. Click “Yes” to restore the data.
Figure 10
2 – 5
Page 14
GX25
6) After the handset (phone) is turned on, the initialisation is complete.
CONFIDENTIAL
Figure 11
4.2. User data back-up
SPST saves all the data stored on the handset (phone).
1. Set the COM port on the SPST initial screen and click “User Data Backup”.
2. Specify the file name in the following dialogue box and click “Save”.
3. The communicating dialogue box appears whilst processing.
4. When completed, the following message appears. Click “OK”.
Figure 12
Figure 13
Figure 14
2 – 6
Page 15
CONFIDENTIAL
4.3. User data restore
SPST completely restores the backed up data.
1. Set the COM port on the SPST initial screen and click “User Data Restore”.
2. Specify the file name in the following dialogue box and click “Open”.
GX25
3. The communicating dialogue box appears whilst processing.
4. When the restore is complete, click “OK”.
Figure 15
Figure 16
Figure 17
2 – 7
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GX25
CONFIDENTIAL
4.4. Downloader
4.4.1 Introduction
Downloader allows you to upgrade the firmware.
1) Required devices
• PC (Operating System: Windows 2000, XP)
• GX25 handset (phone)
Figure 18
• USB hub
You can use a USB hub to download data to multiple handsets (phones) at a time.
(Recommended product) USB hub from Adaptec: XHUB7PLUS
Figure 19
• USB download cable
USB download adaptor cableUSB data cable
Figure 20
* The USB download cable consists of the USB download adaptor cable and a USB data cable.
* A USB data cable is not the existing download cable.
* The USB download cable is exclusively for download, not for any other purpose.
2 – 8
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CONFIDENTIAL
GX25
2) Precautions
Please read the following before use.
* This Upgrading Tool is designed for GX25. Make sure that you have chosen the correct handset (phone) and MOT file before you start the down-
load.
Please note that use with another model may cause damage to handsets (phones).
* When an older version of GX25 Upgrading Tool has already been installed on the PC:
Remove the GX25 Upgrading Tool through [Add/Remove Programs] in the Control Panel, and then install the latest version.
* Download may fail depending on the version of Windows.
It is recommended to update Windows to the latest version before you start.
* Make sure to remove the handset (phone) battery.
(Download must be performed without a battery inserted.)
* Handsets (Phones) may not be recognised depending on the PC.
Disconnect the USB download cable from the handset (phone) and reconnect it.
If the handset (phone) is still not recognised, repeat this a few times or disconnect the cable and restart the PC.
* Do not start/restart a PC with a handset (phone) connected.
* If a PC is set to the power saving mode, disable it before download.
* Whilst using a USB hub for download, do not use the remaining ports for other devices. Download may fail.
* When the Upgrading Tool does not work properly, uninstall and reinstall it.
4.4.2 Installation of the device driver
Install the device driver (SHARP The Upgrading Tool USB Driver Ver 0.90.0) on your PC.
1. Connect a PC and GX25 handset (phone) with the USB download cable.
[Make sure to remove the handset (phone) battery before connecting them.]
2. Install the device driver following the Hardware Wizard.
(For Windows 2000, the driver is automatically installed.)
Figure 21
Press "Next >" button.
Figure 22
2 – 9
Page 18
GX25
CONFIDENTIAL
Press "Continue Anyway" button.
Figure 23
Figure 24
Screen during installation.
Press "Finish" button.
Figure 25 Screen after installation
* Install the device driver for each handset connected to a PC.
For example, if five handsets are connected to PC using a USB hub, the install wizard of the device driver will appear five times. Install the device
driver each time, following the instruction.
* If a handset (phone) is not recognised when connected to a PC:
Disconnect and reconnect the USB download cable.
[If the handset (phone) is still not recognised, repeat a few times.]
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CONFIDENTIAL
GX25
4.4.3 Download
This section describes how to initialise user data and write data to the handset (phone).
1) Application startup and screen descriptions
The icon below is created on your desktop after installation. Double-click it to start the Upgrading tool. You can also start the application by selecting
“The GX25 UpgradingTool” from the Start menu.
Figure 26
The download setup screen appears after starting the application.
1
2
3
4
Figure 27
1. Select Device: Displays port numbers assigned to handsets (phones) that are recognised by the PC.
2. Select Load File: Specify a file to download.
3.Select Load Area: Select data area to write an MOT file.
4. Start Loading Flash: Press to start download.
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GX25
CONFIDENTIAL
2) Download
<<Make sure the following before starting download>>
• Make sure to download an MOT file to GX25 handset (phone).
• The handset (phone) battery is removed.
• The device driver is installed on your PC.
• Handset (Phone) is connected to a PC with the USB download cable.
<< Easy steps for download>>
1. Selecting a handset (phone)
When handset (phone) is recognised as a device, the corresponding Port No. box is checked.
[If the box is unchecked, data will not be downloaded to handset (phone).]
2.Selecting an MOT file
Select an MOT file to download.
3. Selecting download area
<Example>
Check “Program Download” and “File System Initialize” and start download.
5. Completing download
When download is successfully completed, “O” appears in the corresponding Port No. boxes. Click “OK” to exit.
• Estimated download time:
Approximately 15 minutes to download the file to one handset (phone).
Figure 28
2). 1 Selecting device
Check the corresponding Port No. box for the handset (phone) you want to download data to.
1. When a handset (phone) and the PC are connected with the USB download cable, the box of port number is automatically checked.
2. If the box remains unchecked, the handset (phone) may not be recognised correctly. Remove the USB download cable and reconnect it to the PC.
2 – 12
Page 21
CONFIDENTIAL
2). 2 Selecting MOT file.
Select an MOT file to download.
Make sure to choose an MOT file for GX25.
1. Press “Select File” button in “2. Select Load File”. The file selection screen appears.
2. Select a file to download and press “Open” button.
3. When you select a file, the file name appears in the text box. Proceed to “3. Select Load Area”.
• Only Motorola format (.mot) file can be downloaded.
• You can select a file by entering a file name in the text box (without pressing “Select File” button). In this case, enter the file location together.
GX25
Figure 29 File selection screen
2). 3 Selecting download area
Usually select both “Program Download” and “File System Initialize”.
Figure 30
<“Program Download” and “File System Initialize”>
When both are selected, programme data is downloaded and user data area is initialised. Note that all the user data will be deleted after initialisation.
2 – 13
Page 22
GX25
2). 4 Starting download
Remove the handset (phone) battery before starting download.
Make sure that only GX25 handset(s) [phone(s)] is (are) connected to the PC/USB hub.
• “Start Loading Flash” button is disabled when handset (phone) is not connected to a PC.
Connect the PC and handset (phone) with the USB download cable.
• If “Start Loading Flash” button is disabled after connecting the handset (phone):
Case 1: Handset (Phone) is not recognised by the PC.
Reconnect the PC and handset (phone) with the USB download cable.
Case 2: Some items are not selected on the download setup screen.
Make sure items of 1 - 3 are checked.
CONFIDENTIAL
No handsets (phones) are connected.A handset (phone) is connected.
Press “Start Loading Flash” button to start download.
Figure 31
Figure 32
2 – 14
Page 23
CONFIDENTIAL
Download progress is shown on the PC and handset (phone).
GX25
Flash Loader V 6.00
Port No.1
Now loading
Display on handset (phone)
Display on PC
Figure 33 Screen during download
<< Aborting download>>
Press “Quit” button on the PC screen to stop download.
“Please wait for finishing process...” is displayed during the process. Do not disconnect the USB download cable until the message disappears.
(Port No. 1)
Figure 34
To resume the download after aborting it, make sure to check “File System Initialize” first.
2 – 15
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GX25
2). 5 Completing download
Press “OK” button.
“Please wait for finishing process...” appears in the dialog box. Leave the USB download cable connected until the message disappears.
When download is successfully completed, “O” appears as shown below.
In the screen shot, downloaded data are written to the handset (phone) correctly.
CONFIDENTIAL
Flash Loader V 6.00
Port No.1
Received SUM value
SUM = 0xc4d9
Display on PC
Figure 35 Screen after download
<<Download errors>>
If download fails, a message appears on the PC and handset (phone).
1. Disconnect and reconnect the USB download cable, and try to download again.
2. Before you start the download, check “File System Initialize”.
Display on handset (phone)
(Port No. 1)
Flash Loader V 6.00
XXXXX ERROR
Display on PC
Display on handset (phone)
Figure 36
2 – 16
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CONFIDENTIAL
3) Download via a USB hub
Use a USB hub to download data to multiple handsets (phones) at a time.
[Up to 10 handsets (phones) at a time]
* (Recommended product) USB hub from Adaptec: XHUB7PLUS (operation checked)
1. A USB hub is required. Use more according to the number of ports.
*When using more than one hub, connect them as shown in the section 4.4.3.3).1.
2. Connect the USB hub to a PC.
3. Into the USB hub, insert the same number of USB download cables as handsets (phones).
4. Connect the USB download cables to handsets (phones).
5. Install the device driver (SHARP The Upgrading Tool USB Driver Ver 0.90.0).
(For Windows 2000, the driver is automatically installed.)
6. On the download setup screen, port numbers become selectable for recognised handsets (phones).
Refer to the section “4.4.3.2) Download” to perform download.
Note:
Do not connect other devices to the remaining ports during download via a USB hub. Download may fail.
3). 1 Using multiple USB hubs
Connect multiple USB hubs according to the following.
1. Connection in series (recommended)
GX25
PCUSB
Hub
Figure 37
2. Connection in parallel
PCUSB
Hub
USB
Hub
Figure 38
* When using more than one USB hubs, refer to the manuals to interconnect them.
USB
Hub
2 – 17
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GX25
CONFIDENTIAL
4.4.4 Troubleshooting
This section describes error messages, solutions, and other important information.
* Error messages appear on the PC screen.
1) Error message list
No.Displayed messageCause/Solution
1Unable to open fileFailed to open the MOT file to download.
2Unable to Setup DeviceCheck that the USB download cable is correctly connected to PC
3The file you selected is unsuitable for Upgrading.The file is not downloadable.
4Download Error !!- Close running resident programmes.
The following are possible causes:
- The file path contains special characters.
Special characters: ~ ¥/:,;*?”<>|~
- The extension of the file is not “.mot”.
- The file is in use.
- The file path contains more than 257 bytes of characters.
- There is no drive letter in the file path.
- The file path is entered, but the file name is not.
- The file cannot be found.
- The file is located on a CD-ROM, removal disk, RAM disk or
network drive.
and handset (phone).
Select a GX25 MOT file.
- Close all other running applications.
- Reconnect the USB download cable and retry.
- Install Windows updates (see “4.4.1.2) Precautions”)
* If an error occurs, disconnect and reconnect the USB download cable before you download again.
2) Other important information
• Do not start /restart a PC with a handset (phone) connected.
(PC may freeze depending on the type.)
• If the power saving mode is set on the PC, disable it before download.
(Download fails if the power saving mode is activated during the process and the PC may freeze.)
2 – 18
Page 27
4.5. RF calibration & check
CONFIDENTIAL
GX25
Stabilised power supply
Test battery
Handset
(phone)
Data cable
RF cable
GSM tester
GPIB cable
PC
Figure 39
4.5.1 Preparation
• Connect PC and GSM tester with a GPIB cable.
• Connect PC and handset (phone) with a data cable. (Use a test battery or similar.)
• Connect an RF cable of GSM tester to handset (phone).
2 – 19
Page 28
GX25
4.5.2 Default setting for the programme.
• Activate the programme and set defaults.
CONFIDENTIAL
1) A connected COM port
appears.
2) Set the GPIB No.
3) Select the test instrument.
4) Set the GPIB address.
5) Set the "Cable Offset" values.
For cables with connector
QCNWK0138AFZZ/
QCNWK0136AFZZ, set the
values as follows:
GSM 900: 0.60
DCS 1800: 0.95
PCS 1900: 0.96
6) Auto Dial Setting
When the Auto Dial check
box is checked, an entered
number is automatically
dialled for performance
check.
7) Number Setting
Enter a number for Auto Dial.
Figure 40
4.5.3 RF calibration
1. Apply 4 V using a stabilised power supply and turn on the handset (phone).
2. Start “RF calibration & check” on SPST and click “Cal”.
3. When initialisation is complete, the following message appears. Lower the stabilised power supply voltage to 3.7 V and click “OK”.
Figure 41
2 – 20
Page 29
CONFIDENTIAL
4. Make sure the voltage is set properly and press “OK”.
(Calibration starts.)
Figure 42
5. Click “OK”.
Figure 43
6. The initial screen returns.
4.5.4 RF performance check
1. Apply 4 V using a stabilised power supply and turn on the handset (phone).
2. Start “RF calibration & check” on SPST and click “Check”.
3. When initialisation is complete, the following message appears. Lower the stabilised power supply voltage to 3.7 V and click “OK”.
GX25
Figure 44
4. Make sure the voltage is set properly and press “OK”.
(RF performance check starts.)
Figure 45
5. The following dialogue box appears after the check. Increase the stabilised power supply voltage to 4.0 V and click “OK”.
Figure 46
2 – 21
Page 30
GX25
6. Make sure the voltage is set properly and press “OK”.
7. RF performance check is complete. Click “Save As...” and name the file to save the result. Click “OK” to exit.
CONFIDENTIAL
Figure 47
The following will be displayed in case of failure.
See the attachment 2 for troubleshooting.
Figure 48
Figure 49
2 – 22
Page 31
CONFIDENTIAL
8. Click “OK”.
Figure 50
9. The initial screen returns.
Note:
The RF calibration tool allows the calibration but not the check when the terminal fails to catch signals from the GSM tester (unable to access a network with “no service” displayed). There is a possibility that CMU200 did not start properly. Turn off CMU200 and restart.
GX25
4.5.5 RF calibration & RF performance check
Pressing the “Cal_Check” button initiates RF calibration and RF performance check in succession.
Since some operations are skipped, this is handier than executing calibration (“Cal” button) and performance check (“Check” button) separately.
1. Set the stabilised power supply voltage to 4 V and turn on the handset (phone).
2. Start “RF calibration & check” on SPST and press “Cal_Check”.
3. Lower the stabilised power supply voltage to 3.7 V and press “OK”.
4. Make sure the voltage is set properly and press “OK”.
5. After the calibration and check, increase the stabilised power supply voltage to 4.0 V and press “OK”.
6. Make sure the voltage is set properly and press “OK”.
7. To save the results, press “Save As...” and enter a file name. To exit, press “OK”.
8. Press “OK”.
9. The initial screen returns.
(Steps 1 - 4 and 5 - 9 are respectively equivalent to RF calibration by the “Cal” button and RF performance check by the “Check” button.)
2 – 23
Page 32
GX25
Attachment 2
Whole inspection list by RF performance check.
For repairs, this test checks the condition of an electric board (especially the RF section).
• PC with USB port
• GX25 data cable
• PWB repair jig
• GSM tester (CMU200)
4.6.2 Setup
1. Install GX25 USB driver from CD-ROM, if it is not installed.
2. Set PWB and make connections as shown in Figures 51 and 52.
Make sure connections are correct at the points shown in Figure 53.
GX25
Figure 51 PWB installation
2 – 27
Page 36
GX25
CONFIDENTIAL
PC
RedBlack
Figure 52 Connections
GSM Tester
(CMU 200)
PWB repair jig
Data Cable
Points
Figure 53 Contact points
2 – 28
Page 37
CONFIDENTIAL
3. Apply 4 V using a stabilised power supply and turn on the handset (phone).
GX25
Push
Figure 54 Turning power on
4. Start RF test tool.
5. Press the “Initialize & Read Data” button. (COM port is automatically selected.)
Figure 55
6. Change the voltage, if you need.
7. Click “OK” to proceed.
Figure 56
2 – 29
Page 38
GX25
CONFIDENTIAL
4.6.3 Tests
1) BAND Select & Channel
Select a band and a channel to test. Settings are applied to all tests.
Band selection
[Procedure]
1. Select a band. (GSM, DCS or PCS)
2. Select or enter a channel using channel bar or input box.
2) TX test
Test burst transmission.
TX frequency of selected channelsCurrent PCL (Read only)
Input box
Channel bar
Figure 57
PCL bar
Data patterns
Figure 58
[Procedure]
1. Select a band and channel. [see 4.6.3.1)]
2. Select PCL (Power Control Level) using PCL bar.
3. Select a data pattern.
4. Click TX ON to start burst transmission.
(You can check each part in this state.)
5. Click TX OFF to end burst transmission.
* Data pattern (TSC 5) includes Training Sequence GSM 5, and other part is pseudo random data.
TX ON/OFF button
This indicator appears during
burst transmission.
2 – 30
Page 39
GX25 TX power Table (25°C, voltage: 3.7[V])
GSM BandDCS/PCS Band
PCLGSMTolerancePCLDCS/PCSTolerance
[dBm][dBm]
533+/–2 dB030+/–2 dB
631+/–3 dB128+/–3 dB
729+/–3 dB226+/–3 dB
827+/–3 dB324+/–3 dB
925+/–3 dB422+/–3 dB
1023+/–3 dB520+/–3 dB
1121+/–3 dB618+/–3 dB
1219+/–3 dB716+/–3 dB
1317+/–3 dB814+/–3 dB
1415+/–3 dB912+/–4 dB
1513+/–3 dB1010+/–4 dB
1611+/–5 dB118+/–4 dB
179+/–5 dB126+/–4 dB
187+/–5 dB134+/–4 dB
195+/–5 dB142+/–5 dB
3) RX test
The handset (phone) receives burst signals in this test.
CONFIDENTIAL
150+/–5 dB
GX25
RX frequency of selected channels
Current RX Gain (Read only)
RX Gain Setting bar
RX ON/OFF button
This indicator appears whilst
Sniff ON/OFF
Figure 59
[Procedure]
1. Select a channel and band. [see 4.6.3.1)]
2. Select RX Gain using RX Gain Setting bar.
3. Choose Sniff ON or OFF.
4. Click “RX ON” to receive burst signals.
5. From GSM tester, send burst signals in the specified channel.
(You can check each part in this state.)
6. Click “RX OFF” to stop burst signals.
* In this test, the reception timing cannot be synchronised with burst signals from Signal Generator or GSM tester.
* The standard RX Gain Setting is:
(Input power at the aerial connector of the handset (phone)) + (RX Gain) = –16 dBm
Excessive input power or RX Gain may cause damage to the handset (phone).
receiving burst signals.
2 – 31
Page 40
GX25
CONFIDENTIAL
4) RSSI Measure
The handset (phone) notifies you of input power value at the aerial connector.
Estimated Power
Measured Power box
input box
(Integer only)
Measure button
Figure 60
[Procedure]
1. Connect the handset (phone) and GSM tester (or Signal Generator) with RF cable.
2. Select a band and channel. [see 4.6.3.1)]
3. Send signals (*) from GSM tester.
4. Enter the value of input power from GSM tester in integers (from –10 to –110) considering RF cable loss.
5. Press the “Measure” button.
6. The result appears in Measured Power box.
* The signal type from GSM tester must be either of the following:
1. Continuous sine wave (without modulation) with the following frequency.
(Frequency of the measured channel) + 67.708 kHz
(e.g. channel: GSM 37ch → the result: 942.467708 MHz)
Power: –110 to –10 dBm
2. BCCH signal of the measured channel
Power: –110 to –10 dBm
Result
When the handset (phone) is properly calibrated, the error between “Estimated Power” and “Measured Power” is less than 3 dB.
4.6.4 Termination
Turn off the handset (phone) to ensure proper operations.
4.6.5 Trouble information
When switching DCS and PCS, change the channel number as well. Or the band does not change properly.
Example: If you change DCS 512 CH to PCS 512 CH, the band remains DCS.
2 – 32
Page 41
CONFIDENTIAL
4.7. Password reset
SPST resets the password [handset (phone) code is set to “0000”].
<Operation>
1) Set the COM port on the SPST initial screen and click “User Password Reset”. Click “Yes” to reset. Click “No” to exit.
Figure 61
2) When completed, the following appears.
GX25
Figure 62
2 – 33
Page 42
GX25
CONFIDENTIAL
4.8. Performance check and adjustment
With this function, SPST checks the performance of the handset (phone) and makes adjustments.
<Operation>
1) Set the COM port on the SPST initial screen and click “Performance check and adjustment”. The following dialogue box appears whilst processing.
Figure 63
2) When completed, the following is displayed. Click “Back to main menu” to exit.
The functions of each button are described below.
Figure 64
2 – 34
Page 43
CONFIDENTIAL
4.8.1 Main back light check
The main display back light turns on and the message appears on the PC.
Figure 65
Check the back light and press “OK”.
• If a failure occurs, see “9. Back Light/Mobile Light does not turn on.” in [3] Troubleshooting.
4.8.2 External back light check
The external display back light turns on and the message appears on the PC. Check the back light and press “OK”.
• If a failure occurs, see “9. Back Light/Mobile Light does not turn on.” in [3] Troubleshooting.
4.8.3 Key back light check
The keypad back light turns on and the message appears on the PC. Check the back light and press “OK”.
4.8.4 LED check
The LED lights up in a specified colour and the message appears on the PC. Check the LED and press “OK”.
• If a failure occurs, see “9. Back Light/Mobile Light does not turn on.” in [3] Troubleshooting.
GX25
4.8.5 Battery voltage check
Click to display the current battery voltage.
• If a failure occurs, see “1. Power does not turn on.” in [3] Troubleshooting.
4.8.6 Vibrator test
Click to vibrate the handset (phone). Click “OK” to exit.
• If a failure occurs, see “5. Vibrator does not work.” in [3] Troubleshooting.
4.8.7 Melody test
A message describes test items. Click “Yes” to proceed and “No” to exit.
The order of the test items:
Speaker → Hands free → Hands free (stereo) → Speaker (analogue melody)
Trouble found by SPST
(1) Speaker
(2) Hands freeSound is heard in audio test.
No sound is heard in audio test.
(3) Hands free (stereo)Sound is heard in audio test.
No sound is heard in audio test.
(4) Speaker (analog melody)
See "7. Speaker does not work."
Parts between IC105 pin 10 and IC103 pin 93 are defective, or IC103 is defective.
See "Hands free kit (monaural headset)" in the section "3. No voice is heard from the earpiece."
Parts between IC105 pin 10 and IC103 pin 93; IC105 pin 11 and IC103 pin 94 are defective.
Otherwise IC103 is defective.
See "Hands free kit (stereo headset) - Option" in the section "3. No voice is heard from
the earpiece."
See "8. Video/Voice Recorder playback is impossible."
Otherwise parts between IC105 pin 10 and IC103 pin 93 are defective, or IC103 is defective.
Troubleshooting (based on [3] Troubleshooting)
2 – 35
Page 44
GX25
CONFIDENTIAL
4.8.8 Audio test
The following appears.
Figure 66
Select a test item from Audio device. Check the output sound from the receiver by speaking to the microphone, etc. Click “Back to test menu” to return
to the previous screen.
(1)
Handset microphone
Handset receiver
(1) & (2): No voice is heard.
(3)
Hands free microphone
Hands free receiver
4.8.9 Camera check
The following appears.
Trouble found by SPST
(2)
Handset microphone
Hands free receiver
(4)
Hands free microphone
Handset receiver
(1) & (2): No voice is heard.
(1): Voice is heard.
(2): No voice is heard.
(1): No voice is heard.
(2): Voice is heard.
(3) & (4): No voice is heard.
(3): Voice is heard.
(4): No voice is heard.
(3): No voice is heard.
(4): Voice is heard.
Troubleshooting (based on [3] Troubleshooting)
See "Phone" in the section "2. Voice transmission/recording is impossible."
See "Hands free kit (monaural headset)" in the section "3. No voice is heard
from the earpiece" or "Hands free kit (stereo headset) - Option" in the section
"3. No voice is heard from the earpiece."
See "Phone" in the section "3. No voice is heard from the earpiece."
See "Hands free kit (headset)" in the section
"2. Voice transmission/recording is impossible."
Figure 67
Select a Camera mode from the list box. Click “Shutter” to check that the camera operates properly. Click “Back to performance check menu” to return
to the previous screen.
• If a failure occurs, see “13. Pictures cannot be taken.” in [3] Troubleshooting.
2 – 36
Page 45
CONFIDENTIAL
g
)
GX25
4.8.10 Memory check
Click “S-RAM” and “PSRAM” to see each test result.
For “Check Sum”, the calculation appears after the SPST communicating dialogue box.
4.8.11 LCD test
Check that the specified colour appears on the main display.
• If a failure occurs, see “11. The display does not appear on Main Display.” and “12. The display does not appear on External Display.“ in [3] Trouble-
shooting.
4.8.12 Temperature adjustment
The following appears.
Setting temp. indicates the current temperature. The relative temperature is displayed in the text box below.
(Only the relative temperature is adjustable.)
If displayed Setting temp. value differs from the current temperature, click “” or “” to set a correction value in the range of –99 to +99 and click
“Save”.
Check a main display visually within a distance of 20 cm from a fluorescent light, and adjust the value to minimise flicker on the display with the “”
and “” buttons. Click “Save” and confirm that the main display does not flicker.
(Fine adjustment for DC voltage between display electrodes)
Enlarged view
(A black line appears
after each gradation line.)
8-level
radationpattern with alternate black andgradation lines(black and white
Figure 70
2 – 37
Page 46
GX25
4.8.14 External display contrast adjustment
Click the “External display contrast adjustment” button. The following screen appears.
CONFIDENTIAL
DEN:
075
8-level gradation pattern (black & white pattern)
Figure 71
Comparing with an adjusted handset, click “” or “” to adjust the value so that the same gradation pattern is displayed. Click “Save” and confirm
the pattern on the external display.
2 – 38
Page 47
CONFIDENTIAL
GX25
4.9. ****mode release
When the handset (phone) does not turn on and enter the normal mode, use this function to change ****mode to the normal mode.
<Operation>
1) Select the COM port on the SPST initial screen and click “****mode release”. The following dialogue box appears.
Figure 72
2) If SPST cannot communicate with the handset (phone), the following message is displayed. Make sure the handset (phone) is turned on and click
“Retry”. To exit, click “Cancel”.
Figure 73
3) When complete, the following message appears.
Figure 74
5. Other tests
SPST does not provide tests of Bluetooth/USB communication. Check them according to the following instructions.
5.1. Bluetooth
1) Connect GX25 to the network and check that a conversation (talking and listening) is possible using a Bluetooth headset.
Recommended Bluetooth headset:
PLANTRONICS M3000
2) Connect GX25 to another Bluetooth built-in handset (phone) or PC and check that text data can be transmitted and received properly via Bluetooth.
5.2. USB
Connect GX25 and a PC with a USB cable. Check that GX25 is recognised as a device.
If the USB driver for GX25 (SHARP GSM GPRS USB Driver) is not installed on the PC, “Found New Hardware” window appears and “Found New
Hardware Wizard” starts [the handset (phone) is recognised].
TP601VCAM (2.8V)
TP607VCAMC (1.8V)
TP604Terminal for CAMERA_IC adhesion check 1
TP606Terminal for CAMERA_IC adhesion check 2
TP712CAMCLK
TP71313MHzCLK
TP714VLCD (1.8V)
TP715Terminal for LCDC adhesion check 1
TP716Terminal for LCDC adhesion check 2
TP723Terminal for LCDC adhesion check 3
TP724Terminal for LCDC adhesion check 4
TP727SP1
TP728SP2
TP734RECIVER_OUTN
TP735RECIVER_OUTP
TP750VOUT
TP751P-LED_C
TP753M-LED1_C
TP754M-LED2_C
TP755M-LED3_C
TP756S-LED_C
TP757LED
DISPLAY PWB-B(REAR SIDE
TP728
TP751
)
TP725
Figure 76 TEST POINT
2 – 42
Page 51
CONFIDENTIAL
[3] Troubleshooting
1.Power dose not turn on.See page 2-43
2.Voice transmission/recording is impossible.See page 2-45
3.No voice is heard from the earpiece.See page 2-47
4.Battery does not charge.See page 2-48
5.Vibrator does not work.See page 2-48
6.Clock Settings are reset.See page 2-49
7.Speaker does not work.See page 2-49
8.Video/Voice Recorder playback is impossible.See page 2-50
9.Back Light/Mobile Light does not turn on.See page 2-51
10. Out of range and incoming/outgoing calls are impossible.See page 2-53
11. The display does not appear on Main Display.See page 2-54
12. The display does not appear on External Display.See page 2-55
13. Pictures cannot be taken.See page 2-56
14. SIM card is not recognised.See page 2-57
15. IrDA (Infrared) communication is impossible.See page 2-58
16. Bluetooth communication is impossible.See page 2-59
17. USB connection is impossible.See page 2-59
1. Power dose not turn on.
Connect a battery of 4.0 V or more.
GX25
Execute File System initialisation of Downloader in SPST
without loading a file.
Does File System initialisation start properly?Is the user area (file system) initialised by Flash Loader?
NO
YES
YES
Flash memory (IC104) and
IC106 are defective.
Does normal mode start?
NO
Flash memory (IC104) data is
corrupted.
Is it possible to rewrite the firmware?
YES
Flash memory (IC104) and
IC106 are defective.
Does normal mode start after restart?
NOYES
Flash memory (IC104) and
IC106 are defective.
Programme code of Flash
memory (IC104) is garbled.
NO
YES
NO
A
(To page 2-44)
2 – 43
Page 52
GX25
(From page 2-43)
A
CONFIDENTIAL
Is 3.6 V or more applied to BATT terminal (TP520)?Battery terminals are defective, connector terminal is dirty, or
YES
Is the voltage 1.2 V or lower on SENSE terminal (TP534)?The battery is defective or set improperly.
YES
Is there conduction through fuse (FS501)?Fuse (FS501) is blown.
YES
Is Flash memory (IC104) installed properly?Flash memory (IC104) is installed improperly.
YES
Are voltages of 3.00, 1.82, and 1.82 V applied to VINT
(TP173), VCORE (TP171), and VRTC (TP167) respectively?
YES
Are voltages of 3.00, and 1.80 V applied to VINT (IC703 pin 1
to R717), and VLCD (TP714) respectively?
YES
Is the waveform of signals from R169 connected to X101 (32
kHz) correct?
Are R167, R169, R174A, C176, X101, and IC106 good in
NO
NO
NO
NO
NO
NO
NO
soldering is improper.
IC103 is defective.
CN103, CN701, and FPC are defective or mounted improperly.
X101 (32 kHz oscillator), R167, R169, R174A, and C176 are
defective or mounted improperly.
Or oscillating circuit of IC106 is defective.
appearance and mounted properly?
YES
Is the triangular wave of 13 MHz sent from C833?
NO
Is 2.9 V supplied from VTCXO (TP801)?Voltage Regulator (IC804) is defective.
YES
YES
NO
B
IC801 and peripheral circuits are defective.
B
CN103, CN701, FPC, IC704, IC103, IC104, and IC106 are
defective or mounted improperly.
NO
Is 13 MHz applied to 13MHzCLK (TP713)?Is “H“ supplied from CN704 pin 32?
NO
Is 13 MHz applied to R179?CN103, CN701, and FPC are defective or mounted improperly.
NO
IC108 and IC106 are defective or mounted improperly.
YES
YES
CN103, CN701, FPC, IC103, IC104, and IC106 are defective or
mounted improperly.
YES
2 – 44
Page 53
CONFIDENTIAL
2. Voice transmission/recording is impossible.
Phone (Handset)
Replace the microphone.
Is the problem solved?
YES
GX25
The built-in microphone is defective or in a poor contact with
the PWB.
NO
Is 1.2 - 2.1 V applied to both ends of C101?Is 1.2 - 2.1 V applied to TP119?
YES
NO
L101, L102, and C101 are defective.
YES
NO
Is 2.4 - 2.6 V applied to TP176?
NO
R125 is defective.
Is 2.4 - 2.6 V applied to IC103 pin 76?
NO
R115 and C108 are defective.
IC103 is defective.
Is approx. 1.7 V applied to IC103 pin 80?Is approx. 1.7 V applied to IC103 pin 96?
YES
NO
NOYES
R263 and R118 are defec-
IC103 is defective.
tive.
Is 0.5 V or more applied to R101 (IC103 pin 9 side)?IC103 is defective.
YES
YES
YES
NO
Is 0.5 V or more applied to JK101 pin 5?Parts between socket JK101 pin 5 and IC103 pin 9 are defec-
NO
Is 0.5 V or more applied to JK101 pin 3?Socket JK101 is defective.
NO
Is 0.5 V or more applied to TP120?Parts between socket JK101 pin 3 and TP120 are defective.
NO
Is 2.4 - 2.6 V applied to TP176?R122 is defective.
NO
Is 2.4 - 2.6 V applied to R115 (IC103 pin 76 side)?R115 is defective. (Headset mode is set.)
NO
Replace C121A or C133. Is the problem solved?C121A or C133 is defective.
NO
YES
YES
YES
YES
YES
YES
tive.
IC103 and IC106 are defective.
2 – 45
Page 54
GX25
Hands free kit (Headset)
Replace the hands free kit.
Is the signal sent?
NO
CONFIDENTIAL
YES
Hands free kit is defective.
Parts between JK101 pin 3 andTP120 are defective.
Is 0.7 - 1.8 V applied to JK101 pin 3?Is 0.7 - 1.8 V applied to TP120?
YES
NO
YES
NO
Is 2.4 - 2.6 V applied to TP176?
NO
YES
R122 is defective.
Is 2.4 - 2.6 V applied to IC103 pin 76?
NO
YES
R115 and C108 are defective.
IC103 is defective.
Is approx. 1.7 V applied to IC103 pin 79?Is approx. 1.7 V applied to IC103 pin 95?
YES
NO
NOYES
R262 and R117 are defec-
IC103 is defective.
tive.
Disconnect the hands free kit. Is speaking voice heard to the
person in the phone mode?
YES
Is the voltage 0 V on R101 (IC103 pin 9 side)?Socket JK101 is defective. (Phone mode is set.)
YES
Replace C123A. Is the problem solved?C123A is defective.
NO
Replace JK101. Is the problem solved?JK101 is defective, or the socket plug pin 3 is in a poor contact
NO
NO
NO
YES
YES
IC103 or IC106 is defective.
with hands free kit.
IC103 and IC106 are defective.
2 – 46
Page 55
CONFIDENTIAL
3. No voice is heard from the earpiece.
Phone (Handset)
Are signals sent to TP734 and TP735?Internal receiver is defective (lead wire breakage, etc.).
NO
Are signals sent to R233 (both ends) and R234 (both ends).Relay FPC, CN101, or CN701 are defective.
NO
Is the signal sent to both ends of C147?R233, R234, L107, L108, C106, and C143 are defective or
NO
Is 0.5 V or more applied to R101 (IC103 pin 9 side)?IC103 is defective.
NO
Is 0.5 V or more applied to JK101 pin 5?Parts between socket JK101 pin 5 and IC103 pin 9 are defec-
NO
Is 0.5 V or more applied to JK101 pin 3?Socket JK101 is defective.
NO
Is 0.5 V or more applied to TP120?Parts between socket JK101 pin 3 and TP120 are defective.
NO
Is 2.4 - 2.6 V applied to TP176?R122 is defective.
NO
Is 2.4 - 2.6 V applied to R115 (IC103 pin 76 side)?R115 is defective. (Hands free kit mode is set.)
NO
IC103 is defective.
YES
YES
YES
YES
YES
YES
YES
YES
YES
Or the connector is loose or in poor contact.
Or relay FPC is in a poor contact with CN101 and CN701.
soldered improperly.
tive.
GX25
Hands free kit (Headset)
Replace the hands free kit. Is sound produced?The hands free kit is defective.
NO
Is signal sent to JK101 pin 4?Socket JK101 is defective, or the hands free kit is in a poor
NO
Is signal sent to TP121?L103 is defective.
NO
Is signal sent to both ends of C121?V102, C103, C105, and C107 are defective.
NO
Is signal sent to L124 (IC103 pin 60 side)?L124 is defective.
NO
Disconnect the hands free kit. Is voice heard in phone mode?IC103 or IC106 is defective.
YES
Is the voltage 0 V on R101 (IC103 pin 9 side)?IC103 is defective.
NO
YES
YES
YES
YES
YES
NO
YES
contact with the socket plug.
Socket JK101 is defective.
2 – 47
Page 56
GX25
4. Battery does not charge.
Set a battery of 4.0 - 4.2 V. Click the “Performance check
adjustment” button on SPST.
Click the “Temperature adjustment” button. Is the value of
“temp” normal? (Measurement tolerance: ± 5 deg.)
YES
Click the “Battery voltage check” button. Is the voltage 4.0 -
4.2 V?
YES
Set a battery of 3.7 - 3.9 V and start in normal mode.
CONFIDENTIAL
* For settings and connections for SPST, refer to the “ADJUSTMENTS,
PERFORMANCE CHECK, AND FIRMWARE UPGRADE” on page 2-1.
NO
NO
TH101 and IC103 are defective.
IC103 is defective.
Connect the AC charger to the external connector.
Is the voltage applied to TP503 higher than that of battery?
YES
When the AC charger is inserted to the external connector, is
IC107 pin 1 at “L”?
YES
Connect the AC charger to the external connector.
After approx. 15 seconds, do the voltages on TP159 and
NO
NO
NO
Q102, and IC107 are defective.
IC107 is defective.
Q102, IC107, IC102, Q101, IC103, D101, and D102 are
defective.
TP502, and TP534 increase by more than 0.05 V?
YES
The battery is defective, or the battery cycle is shortened.
5. Vibrator does not work.
Are vibrator terminals in contact with the land?
Are terminals and the land clean?
YES
NO
Hereafter check with vibrator working.
Is rectangular wave of 3 V sent to between vibrator terminals
in sync with the vibration pattern?
NO
Is rectangular wave of 3 V sent to between CN103 pin 1 and
pin 2 in sync with the vibration pattern?
NO
Is VBAT voltage applied to IC108 pin 4?IC108 is soldered improperly.
YES
Is signal synchronised with the vibration pattern sent to IC108
pin 3?
NO
Is signal synchronised with the vibration pattern sent from
IC604 pin 19?
NO
Do ring tones sound?Go to the section “Speaker does not work.” (see page 2-49).
YES
YES
NO
YES
YES
NO
Vibrator is deformed and defective. (When vibrator terminals
and the land are dirty, clean or replace them.)
Vibrator is defective.
SIM FPC is defective, and CN 103 is inserted improperly.
IC108 is defective.
IC604 is soldered improperly. CN701 and CN101 are defective or mounted improperly. And FPC is defective.
IC604 is defective.
YES
2 – 48
Page 57
6. Clock Settings are reset.
CONFIDENTIAL
GX25
Is 1.6 V or more applied to TP167 with a battery in the phone?IC103 is defective.
YES
Is 1.2 V or more applied to TP167 without a battery in the
NO
NO
The back-up battery holder is installed improperly.
NO
Is back-up battery holder properly installed to Main PWB?
phone?
YES
YES
• The remaining power of back-up battery is insufficient.
• Back-up battery is defective.
• Back-up battery holder is defective.
X101, R167, R174, R174A, and C176 are defective.
7. Speaker does not work.
* When ring tones sound, but keypad tones do not, “Keypad Tones” is set to Off.
* When keypad tones and Voice Recorder playback sound are available but ring tones are not, Ringer Volume is set to “Silent”.
* Ring tones sound according to “Ringer Volume” settings.
Are speaker terminals in contact with the land?The speaker is defective.
YES
Is the impedance between speaker terminals approx. 8 ohms?The speaker is defective.
YES
Is signal sent to TP727, TP728, or the speaker contact pad?The speaker is defective.
NO
Is signal sent to IC604 pins 17 and 18?Either of following parts are defective or soldered improperly:
NO
Is VBAT applied to IC604 pin 15?R624 or parts between VBAT and IC604 pin 15 are defective
YES
Is approx. 3V applied to IC604 pins 7 and 32?
YES
Is signal sent to IC604 pin 12?C622 and R622 are defective.
NO
IC604 or the control line to IC106 is defective.
NO
NO
YES
YES
NO
NO
YES
· Between IC604 pin 18 and TP727.
· Between IC604 pin 17 and TP728.
or soldered improperly.
A
Solder or parts between VINT and IC604 pins 7 and 32
are defective or soldered improperly.
Or IC604 is defective.
2 – 49
Page 58
GX25
CONFIDENTIAL
8. Video/Voice Recorder playback is impossible.
* Playback volume of video and Voice Recorder depends on the setting in "Multimedia Volume".
Speaker
Are keypad tones and ring tones normal?Go to the section “Speaker does not work.” (see page 2-49)
YES
In Playback window, does playback start normally and the
capacity bar change?
YES
Is Multimedia Volume set to “Silent”?Cancel “Silent”. Is sound produced?
NONO
Is signal sent to CN701 pin 55?Parts between IC604 pin 13 and CN701 pin 55 are defective
NO
Is signal sent to R228 (both ends)?Relay FPC or CN101 and CN701 are defective. Or the relay
NO
Is signal sent to IC103 pins 91 and 107?Parts between IC103 pins 91 and 107 to R228 are defective
NO
Is 3.0 V supplied from IC103 pins 90 and 106?IC103 is defective.
NO
Is 3.0 V supplied from TP110?R127, C164, and C123 are defective.
NO
NO
NO
YES
YES
YES
YES
YES
YES
IC104 or IC106 is defective.
Not defective.
YES
or soldered improperly.
camera FPC is connected to CN101 and CN701 improperly.
or soldered improperly.
IC103 is defective.
Hands free kit (Headset)
Replace the hands free kit.
Is the signal sent?
NO
In Playback window, does playback start normally and the
capacity bar change?
YES
Is Multimedia Volume set to “Silent”?Cancel “Silent”. Is sound produced?
NONO
YES
NO
YES
Hands free kit is defective.
IC104 or IC106 is defective.
Not defective.
YES
Go to “Hands free kit (Headset)” in the section “No voice is
heard from the earpiece.” (see page 2-47)
2 – 50
Page 59
CONFIDENTIAL
9. Back Light/Mobile Light does not turn on.
FS601 is mounted improperly, or the fuse is blown.
NO
Is VBAT voltage applied to C633?Is fuse (FS601) in good appearance, mounted properly, and is
YES
NO
there conduction?
YES
Is VBAT voltage applied to TP502?
NO
YES
CN101, CN701, and FPC
are defective or mounted
improperly
Go to the section “Power dose not turn on.” (see page 2-43)
GX25
Is IC605 pin 4 at “H“?IC704 is mounted improperly or defective.
YES
Are pulse signals supplied to IC605 pins 2and 3?CN101, CN701, and FPC are defective or mounted improp-
YES
Is approx. 2.8 V applied to IC605 pin 5?IC605 is defective or mounted improperly.
YES
Which does not turn on, Main Display, External Display, or
Mobile Light?
NO
NO
NO
erly.
External Display only , Mobile Light only
C
(To page 2-52).
D
Main Display only.
Is back light setting for Main Display set to On?Go to the setting as follows and set it to On:
YES
NO
NO
Settings → Display → Main Display → Back Light → Time out
Does it turn on?
YES
Not defective.
Are approx. 0.1 V applied to IC605 pins 1, 16, and 15?IC605, LED701, LED702, and LED703 are defective or
YES
NO
mounted improperly.
LED701, LED702, and LED703 are defective or mounted
improperly.
2 – 51
Page 60
GX25
(From page 2-51)
C
CONFIDENTIAL
Is back light setting for External Display set to On?Go to the setting as follows and set it to On:
YES
Is approx. 0.1 V applied to IC605 pins 14?IC605 and LED704 are defective or mounted improperly.
YES
LED704 is mounted improperly or defective.
(From page 2-51)
NO
NO
NO
Settings → Display → External Display → Back Light
Does it turn on?
YES
Not defective.
D
Does Mobile Light turn on when the side key is pressed and
held?
NO
Is R763 at 3.00 V?Is approx. 0.1 V applied to IC605 pin 13?
NO
YES
YES
Not defective.
IC605, LED751, and Q751 are defective or mounted improperly.
NO
YES
LED704 is defective or mounted improperly.
Do ring tones sound?Go to the section “Speaker does not work.” (see page 2-49)
NO
IC604 is defective.
NO
2 – 52
Page 61
CONFIDENTIAL
10. Out of range and incoming/outgoing calls are impossible.
[Checkpoints in RF Test Tool]
Is transmission possible using RF Test Tool?
YES
[Sender]
Is voltage (applox. 2.9 V) supplied to pin 6 of IC804?IC804 is defective.
Is IQ signal supplied to pins 23, 24, 25, and 26 of IC801?IC103, IC106, or PWB is defective.
NO
NO
YES
NO
YES
GX25
Is frequency signal sent?
EGSM900 bands ..................... IC801 pin 17
NO
IC801 is defective.
DCS1800/PCS1900 bands ...... IC801 pin 19
YES
Is frequency signal supplied?
EGSM900 bands ..................... FL803 pin 15
NO
IC802 is defective.
DCS1800/PCS1900 bands ...... FL803 pin 13
YES
Is frequency signal supplied to pin 1 of FL905?FL803 is defective.
YES
Is frequency signal supplied to pin 1 of J801?FL905 is defective.
Is frequency signal supplied to pin 9 of FL803?FL803 is defective.
NO
YES
FL905 or J801 is defective.
2 – 53
Page 62
GX25
CONFIDENTIAL
11. The display does not appear on Main Display.
Is Main Display unit fully inserted to CN704?Improperly inserted to the connector.
YES
Clean the contact point of CN704 and insert the unit again.
Does the display appear?
NO
Replace Main Display.
Does the display appear?
NO
Is 3.6 or more voltage applied to VBAT2 terminal (FS601) and
VBAT1 terminal (IC601 pin 1)?
YES
Is 2.8 ± 0.1 V applied to TP170?Go to the section “Power is not turned on.” (see page 2-43)
YES
Is 3.0 ± 0.1 V or more applied to TP173?Go to the section “Power is not turned on.” (see page 2-43)
YES
Is 1.8 ± 0.1 V or more applied to TP714?Is 3.0 ± 0.1 V applied to IC703 pin 1?
YES
NO
YES
YES
NO
NO
NO
NO
YES
The contact point of the connector is dirty.
Main Display unit is defective.
Go to the section “Power is not turned on.” (see page 2-43)
Regulator IC703 is defective.
NO
Is C728 good in appearance and mounted properly?
YES
Are CN701 and CN101 good in appearance and mounted
properly?
NO
CN701 and CN101 are defective or mounted improperly.
And FPC is defective.
Is 13 MHz applied to clock TP713?Go to the section “Power is not turned on.” (see page 2-43)
YES
Is 3.0 ± 0.1 V supplied from LCD_RST (L749)?
Are L749, C736, R771, R773, CN701, and CN771 good in
NO
NO
L749, C736, R771, R773, CN701, and CN771 are defective or
mounted improperly.
appearance and mounted properly?
YES
Is 3.0 V ± 0.1 V applied to CN704 pins 29, 30, and 31?
Is C730 good in appearance and mounted properly?
YES
Is 3.0 ± 0.1 V applied to the LCD reset (CN704 pin 32 and
C720)?
NO
NO
CN704 and C730 are defective or mounted improperly.
Display controller IC (IC704) and C720 are defective or
mounted improperly.
Is C720 good in appearance and mounted properly?
YES
Are pulse signals sent to pins 26, 27 and 28 of CN704?
Are R719, R720, and CN771 good in appearance and
NO
Display controller IC (IC704), R719, R720, and CN771 are
defective or mounted improperly.
mounted properly?
YES
Is the signal of approx. 6.5 MHz present on CN704 pin 21?
Are R711 and C717 good in appearance and mounted prop-
NO
Display controller IC (IC704), R711, and C717 are defective or
mounted improperly.
erly?
YES
E
(To page 2-55)
2 – 54
Page 63
(From page 2-54)
E
CONFIDENTIAL
GX25
Is the signal of approx. 70 Hz present on CN704 pin 23?Display controller IC (IC704) is defective or mounted improp-
YES
NO
erly.
Main Display unit is defective, or connector CN704 is mounted
improperly.
12. The display does not appear on External Display.
Does the display appear on Main Display?Go to the section “Power is not turned on.” (see page 2-43)
YES
Is External Display unit fully inserted to CN771?Improperly inserted to the connector.
YES
Clean the contact point of the connector CN771 and insert the
unit again. Does the display appear?
NO
Is 3 ± 0.1 V applied to CN771 pin 6?
Are D771 and C771 good in appearance and mounted properly?
YES
Are CN701 and CN101 good in appearance and mounted
properly?
YES
Is 3.0 ± 0.1 V supplied from LCD_RST (CN771 pin 5, R771,
and R773)?
YES
Are R727, R728, R720, and R719 good in appearance and
mounted properly?
YES
Are pulse signals sent to R727, R728, R720, and R719?IC704, R727, R728, R720, and R719 are defective or
YES
External Display unit is defective.
NO
NO
YES
NO
NO
NO
NO
NO
The contact point of the connector is dirty.
D771 and C771 are defective or mounted improperly.
CN701 and CN101 are defective or mounted improperly.
And FPC is defective.
IC106, R771, and R773 are defective or mounted improperly.
R727, R728, R720, and R719 are defective or mounted
improperly.
mounted improperly.
2 – 55
Page 64
GX25
13. Pictures cannot be taken.
CONFIDENTIAL
Is the camera unit fully inserted to SO601?Improperly inserted to the connector.
YES
Clean the contact point of SO601 and insert the unit again.
Dose the display appear?
YES
Replace Camera unit.
Dose the display appear?
YES
Check that IC603 has not come off.
Is there conduction between TP604 and TP606?
YES
Are all the pins of SO601 mounted properly?SO601 is mounted improperly.
YES
Is 2.8 V applied to SO601 pins 6, 17, and 23 (when camera is
on)?
YES
NO
NO
NO
NO
NO
NO
The contact point of the connector is dirty.
Camera unit is defective.
IC603 is mounted improperly.
The regulator IC602 or peripheral circuits are defective.
IC603 is defective, or TP712/C607 is mounted improperly, or
IC704 is defective.
NO
SO601:
1. Is 2.8 V applied on pins 21 and 24?
2. Is the voltage 0 V on pin 22?
3. Is the 13 MHz frequency sent to pin 18?
NO
IC603 peripheral circuits:
1. Is 13 MHz frequency sent to TP712?
2. Is 3.00 V applied to C607?
(when camera is on)
(when camera is on)
YES
YES
Is 1.8 V applied to IC603 peripheral circuit TP607 (when camera is on)?
YES
IC601 or peripheral circuits
are defective; R605 and
C609 are mounted improperly.
NO
F
(To page 2-57)
2 – 56
Is 3.00 V applied to IC603 peripheral circuit R604
(when camera is on)?
YES
Go to the section "Power is
not turned on." (see page 2-
43)
IC603 or IC106 is defective.
NO
Page 65
(From page 2-56)
F
CONFIDENTIAL
IC602, R606, and C610 are mounted improperly or defective.
GX25
NO
SO601:
1. Is 2.8 V applied on pins 14 and 16 (when camera is on)?
NO
Is 2.8 V applied to IC603 peripheral circuit R606
(when camera is on)?
2. Are voltages of pins 14 and 16 within the range 0 to 2.8 V
(when camera being activated)?
YES
YES
IC603 is defective.
SO601:
Are voltages of the following pins within the range 0 to 2.8 V
(when camera is on)?
NO
R611, R612, R613, and IC603 are mounted improperly.
1. pins 2 - 5, 7 - 8, 10, and 12
2. pins 11, 13, and 15
YES
IC603 is defective.
14. SIM card is not recognised.
Replace the SIM card. Is it recognised?SIM card is defective or not the one specified.
NO
YES
Hereafter, check the signal waveform of each SIM when the power is turned on
without a SIM card inserted.
(SIM signal waveform appears for approx. 70 ms after the power is turned on.)
Is 2.85 V supplied from pins 1, 2, and 6 of the SIM card?
And is periodic pulse wave (3.25 MHz) sent from pin 3 of the
YES
The contact point of the SIM card connector is deformed or
dirty.
SIM card?
NO
Is 2.85 V applied to CN103 pin 6?Is C159 good in appearance and mounted properly?
YES
NO
C159 is defective.
NO
YES
IC103 is defective.
R170 is defective.
NO
Is 2.85 V applied to CN103 pin 5?Is R170 good in appearance and mounted properly?
YES
NO
YES
IC106 is defective.
R169 is defective.
NO
Is periodic pulse wave sent from CN103 pin 4?Is R169 good in appearance and mounted properly?
YES
NO
YES
IC106 is defective.
R168 is defective.
NO
Is 2.85 V supplied from CN103 pin 7?Is R168 good in appearance and mounted properly?
YESYES
NO
SIM FPC and SIM card connector are defective.IC106 is defective.
2 – 57
Page 66
GX25
CONFIDENTIAL
15. IrDA (Infrared) communication is impossible.
Set the distance and angle within the specification for the IrDA
communication. Activate the IrDA function.
Is 2.9 V supplied from Q104 pin 2?IC106 is defective.
YES
Is 2.9 V applied to UN101 pin 6?Q104 is defective or UN101 pin 6 is soldered improperly.
YES
Does the send signal (UN101 pin 5) send pulse waves periodically?
YES
NO
NO
NO
R183 is defective.
NO
Is R183 good in appearance and mounted properly?
YES
IC106 is defective.
Short terminal (CN101 pin 2 to 3.0 V VINT) and C197 are
defective.
NO
Is 3.0 V supplied from VCC (UN101 pin 2)?Are short terminal (CN101 pin 2 to 3.0 V VINT) and C197
YES
NO
good in appearance and mounted properly?
YES
IC106 is defective.
Is SD signal (UN101 pin 3) 0.2 V or lower?Q104 and IC106 are defective.
YES
Does the RxD signal (UN101 pin 4) send pulse waves periodically?
YES
Is UN101 good in appearance and mounted properly?IrDA port (UN101) is defective or mounted improperly.
YES
Is communication possible after replacing IrDA port (UN101)?IC106 is defective.
YES
NO
NO
NO
NO
IrDA port (UN101) is defective.
IrDA port (UN101) is defective.
2 – 58
Page 67
16. Bluetooth communication is impossible.
A connection cannot be established via Bluetooth.
CONFIDENTIAL
GX25
Is 3 V supplied from IC403 pin 3?IC403 or C402, C409 is defective.
YES
Is IC402 pin 34 (RESET signal) always at “H”?Parts (between IC106 pin 100 and IC402 pin 34) are defec-
YES
Are pulse signals sent to IC402 pin 74 (BT_TXD signal)?IC402 is defective.
YES
NO
NO
NO
tive.
IC106 is defective.
Phone can be connected to Bluetooth headset, but sound is
not heard.
Is waveform of PCMCLK signal (approx. 256 kHz clock) sent
from R188?
YES
Are pulse signals sent to BT_PCMOUT signal side of R199?IC402 is defective.
YES
NO
NO
IC106 is defective.
IC106 or IC402 is defective.
17. USB connection is impossible.
Connect a properly working phone to the PC/USB cable that is
not recognised. Is it recognised?
YES
NO
Reinstall the driver and replace the USB cable to connect the
phone.
Connect to a PC with the USB cable.
Is 5 V or more applied to TP515?CN502 is connected improperly.
YES
Is Q503 pin 3 at “L”?Q503 is defective.
YES
Is 3 V or more applied to TP507?IC501 or IC106 is defective.
YES
Is 3 V or more applied to TP523?Q504, Q506, and R512 are defective.
YES
NO
NO
NO
NO
IC106 is defective.
2 – 59
Page 68
GX25
Main Display Holder
Assembly
Standard
position
Standard
position
Cushion,
Camera Unit A
Cushion,
Camera Unit B
Standard
position
Standard
position
Standard
position
(Attach to completely
cover the added rib.)
Cushion,
Connector
(Relay FPC)
Front Cabinet (Display)
Sensor, Moisture
(Small)
Standard position:
Attach along the line.
PhoneGX25Service ManualService ManualMarketE
CHAPTER 3. DISASSEMBLY AND REASSEMBLY
CONFIDENTIAL
[1] Servicing Concerns
1. For disassembling
1. Do not remove the board of baseband section by pulling external
interface connector not to damage the board.
2. Shield case is attached on shield case holder with no space.
Do not remove together with shield case holder. If you do, you cannot attach it again because they are soldered and in such a case,
you should take the electric pattern on the board as well.
2. For reassembling
1. Make sure that all ornamental parts have no scratch and clean.
2. Make sure that you can open and close handset (phone) smoothly
and hear hinges click.
3. Make sure that display panel is placed in a proper position without
inclination.
4. Make sure that all three battery terminals protrude evenly.
5. Make sure that the pawl of aerial is upside.
• FASTENING TORQUE (Referential Value)
• Back Cabinet (Key)/
Front Cabinet (Key)
• Back Cabinet (Display)/
Front Cabinet (Display)
The reference value is measured when an electric screwdriver
(HIOS CL4000) is used.
• SOLDERING SPECIFICATION
Soldering iron must be set to 380° C for 5 seconds.
• STANDARD POSITION OF ATTACHMENT
When replacing the following labels (marked with ), be sure to
place new ones on the specified positions.
Cushion,
Battery
Standard
position
16.6 ± 2 N • cm
(1.7 ± 0.2 Kgf • cm)
Attach under the back cabinet (key)
as shown, with left and right edges
within the concave section.
Insert a jig between the side cover A and
back cabinet (display) assembly to make space.
2
Insert a jig into the space.
Slide the jig to remove the hooks (D3) at six positions.
3
Slide the side cover A to remove the hook (D4).
Remove the side cover B in the same way.
1
SLIDE
2
2
1
5
3
6
(D3)x6
Figure 6
(D4) x 1
4
Side Cover A
CLOSE
3 – 5
(F2) x 4
To unhook the display PWB-B/
display holder assembly/
external display frame assembly
insert a small flat head screwdriver
and lever it up as illustrated.
min 2.85V,typ3.0V,max3.15V
min 2.85V,typ3.0V max3.15V
min 2.8V,typ3.0V max3.15V
min2.5V,typ3.0V max3.3V
max3mA
min1.62V,typ1.8V max1.98V
min2.25V,typ3.0V max3.30V
min2.55V,typ2.8V max3.05V
min2.55V,typ2.8V max3.05V
1.7V~3.6V max40mA
1.70V 1.78V 1.85V
1.7V~1.9V
4
5
10
UN101
INFRARED PORT
(IrDA)
IC605
SC606AIT
POWER
W
W
LED
IC402
BC313143
BLUETOOTH MODULE
(BlueCoer3-ROM)
RF PART
CN502
EXTERNAL
CONNECTOR
IC106
AD6528B
DIGITAL
BASEBAND
IC104
LRS1898
FLASH
MEMORY
W
B
W
EW1102
LCD100
MAIN
DISPLAY
LCD101
EXTERNAL
DISPLAY
IC704
LR38863
DISPLAY
CONTROLLER
IC603
LR38876
CAMERA I/F
CONVERSION
LSI
CAMERA UNIT
Figure 3 POWER SUPPLY BLOCK DIAGRAM
4 – 5
Page 77
CONFIDENTIAL
PhoneGX25Service ManualService ManualMarketE
CHAPTER 5. SCHEMATIC DIAGRAM AND WIRING SIDE OF P.W.BOARD
GX25
[1] Notes on schematic diagram
•Resistor:
Letters K and M are prefixed to ohm (unit of resistance).
K means 1000 ohms and M means 1000 kohms.
• Capacitor:
P is an abbreviation for “pico” and a farad (unit of capacitance)
without P means “microfarad”. Expressions “capacitance/withstand
voltage” are used for electrolytic capacitors.
(CH), (RH), (UJ): Temperature compensation
(ML): Mylar type
(S): Styrol type
(PP): Polypropylene type
[2] Types of transistor and LED
B
(3)
(G)
E
(1)
(S)
2SK3019
DC114 YETG
TOP
VIEW
C
(2)
(D)
1
S1
G1
S2
G2
4
TOP
VIEW
ECH8603
8
D1
D1
D2
D2
5
• The voltage of each section is obtained by measuring between the
section and chassis using a digital multimeter [handset (phone) out
of range].
• Conditions: SIM card inserted, power on, in stand-by mode
(opened)
• Schematic diagram and Wiring Side of P.W. Board for this model
are subject to change for improvement without prior notice.
• Parts marked with “” are important for maintaining the safety of
the set. Be sure to replace these parts with specified ones for maintaining the safety and performance of the set.
1
1
TOP
3
VIEW
3
3
NSBC143 TP
6
1
PG
PS
2
PD
PD
4
TOP
VIEW
3
2
3
1
4
EC4301 C
EC4401 C
TOP VIEW
1SS388F
RB160M30
RB52030T
RB52130T
MA2SD31
TOP VIEW
PY1103CF
TOP VIEW
RSB6.8S
TOP VIEW
EW1102AT
TOP VIEW
YPY1105C
TOP VIEW
2W0110VY
TOP VIEW
EW008BB5
NSCB215T
5 – 1
Page 78
GX25
[3] Waveforms of circuit
CONFIDENTIAL
13M-IN (CLKIN)
1
(Items on
Main display)
13M-OUT_T
2
(Items on
Main display)
C833
(IC106 142Pin)
R166
(IC106 84Pin)
5
6
DCLK
(Items on
Main display)
VSYNC
(Items on
Main display)
R711 or C717
CN704 23Pin
3
4
13M-OUT_L
(Items on
Main display)
32K_IN
(Items on
Main display)
R179
(IC106 105Pin)
R174A
(IC106 49Pin)
IP
7
C811
(IC801 23Pin)
IN
8
C811
(IC801 24Pin)
QP
9
C812
(IC801 25Pin)
QN
10
C812
(IC801 26Pin)
IP
7
C811
(IC801 23Pin)
IN
8
C811
(IC801 24Pin)
QP
9
C812
(IC801 25Pin)
QN
10
C812
(IC801 26Pin)
RF Test Tool
Tx test
Data pattern...TCS 5
RF Test Tool
Rx test
channel_62, Gain 64dB, SniffOFF
Pin No.Terminal nameInput/OutputDescription of terminal
1*TDIInputNot used
2VCXOENInputVCXO supply
3VBAT3InputExternal interface regulator input
4VEXTOutputSPWR supply
5VCHGInputCharge supply
6GATEDRIVEOutputCharge DAC (FET) output control
7ISENSEInputCharge current sense input
8TEMP2InputTemperature sensor input
9AUXADC2InputAuxiliary ADC input for hands free kit (earphone) detection
10REFBBOutputBaseband transmit & receive voltage reference
11AGND2–Analogue baseband earth
12IPInput/OutputI-channel positive input/output
13INInput/OutputI-channel negative input/output
14QNInput/OutputQ-channel positive input/output
15QPInput/OutputQ-channel negative input/output
16*NC_A16–Not used
17*TMSInputNot used
18*TCKInputNot used
19VBAT3InputExternal interface regulator input
20VEXTOutputSPWR supply
21*NC_B05–Not used
22BATTYPEInputBattery type identification input
23*NC_B07–Not used
24VBATSENSEInputBattery voltage sense input
25TEMP1InputTemperature sensor input
26AUXADC1InputAuxiliary ADC input for temp. sensor adjustment
27REFOUTOutputVoltage reference output
28PAOutputPower amplifier control output
29AGND0–Analogue earth
30AFCDACOutputAutomatic frequency control DAC output
31REFINOutputVoltage reference
32AGND1–Analogue earth for voltage reference
33*TDOOutputNot used
34GPIInputPull down
1
GND
6 – 1
Page 94
GX25
Pin No.Terminal nameInput/OutputDescription of terminal
35VBAT1InputVoltage controlled crystal oscillator regulator input
36*NC_C16–Not used
37INTOutputDigital BB interrupt
38ASDOOutputAudio serial port data output
39REFCHGOutputVoltage reference output
40VVCXOOutputVoltage controlled crystal oscillator supply 2.71 - 2.79 V (VT)
41ASDIInputAudio serial port data input
42BSDOOutputBaseband serial port data output
43*NC_E15–Not used
44*NC_E16–Not used
45BSIFSInputBaseband serial port input framing signal
46ASFSOutputAudio serial port framing signal
47GND_NET2–Earth
48*NC_F16–Not used
49BSOFSOutputBaseband serial port output framing signal
50BSDIInputBaseband serial port data input
51VBAT2InputAnalogue baseband regulator input
52*NC_G16–Not used
53CSDOOutputControl serial port data output
54CSDIInputControl serial port data input
55VBAT2InputAnalogue baseband regulator input
56VABBOutputAnalogue baseband supply
57ASMInputAdvanced state machine
58MCLKENOutputMaster clock enable
59AOUT1POutputHeadset receiver audio positive output
60AOUT3POutputExternal audio output (positive)
61RXONInputBaseband receive section control
62TXONInputBaseband transmit section control
63AOUT1NOutputHeadset receiver audio negative output
64AOUT3NOutputExternal audio output (negative)
65MCLKInputMaster clock
66CSFSInputControl serial port framing signal
67AGND3–Analogue audio earth
68LIGHT1OutputLED control
69ABBRESETInputReset input
70DGND–Digital earth
71LIGHT2OutputUSB charge enable
72LIGHT3OutputKey-pad LED control 1
73VCOREOutputDigital core supply 1.72 - 1.9 V
74VBAT7InputDigital core regulator input
75LGND–Light driver earth
76VMICOutputMicrophone supply 2.4 - 2.6 V
77VCOREOutputDigital core supply 1.72 - 1.9 V
78VBAT8InputMemory interface regulator input
79AIN2PInputHeadset mic audio positive input
80AIN1PInputMic audio positive input
81*NC_R01–Not used
82VBAT8InputMemory interface regulator input
83VMEMSELInputMemory supply voltage selection
84VBAT5InputBack-up battery regulator input
85VBAT4InputSIM interface regulator input
86VBAT6InputReal-time clock regulator input
87DBBONInputDigital BB supply regulator on signal
88SGND–AOUT2P/N supply earth
89AOUT2NOutputSpeaker with receiver positive output
90SPWRInputAOUT2P/N supply regulator input
91AOUT2POutputSpeaker with receiver negative output
92*NC_R12–Not used
93AIN3PInputSound IC audio positive input
94AIN3NInputSound IC audio negative input
95AIN2NInputHeadset mic audio negative input
96AIN1NInputMic audio negative input
97RESETOutputReset output
98VMEMOutputMemory interface supply 2.75 - 3.05 V
CONFIDENTIAL
6 – 2
Page 95
CONFIDENTIAL
Pin No.Terminal nameInput/OutputDescription of terminal
99VMEMOutputMemory interface supply 2.75 - 3.05 V
100VBAT_NETInputVBAT supply input
101GND_NET1–Earth
102VSIMOutputSIM interface supply 2.75 - 2.95 V
103VRTCOutputReal-time clock supply 1.6 - 2.0 V
104SGND–AOUT2P/N supply earth
105AOUT2NOutputSpeaker with receiver positive output
106SPWRInputAOUT2P/N supply regulator input
107AOUT2POutputSpeaker with receiver negative output
108*NC_T12–Not used
109KEYOUTOutputPower-on key output
110KEYONInputPower-on key input
111*NC_T15–Not used
112AGND4–Power management analogue earth
113AGND0–Thermal earth for power supply
114AGND0–Thermal earth for power supply
115AGND0–Thermal earth for power supply
116AGND0–Thermal earth for power supply
117AGND0–Thermal earth for power supply
118AGND0–Thermal earth for power supply
119AGND0–Thermal earth for power supply
120AGND0–Thermal earth for power supply
121AGND0–Thermal earth for power supply
122AGND0–Thermal earth for power supply
123AGND0–Thermal earth for power supply
124AGND0–Thermal earth for power supply
125AGND0–Thermal earth for power supply
126AGND0–Thermal earth for power supply
127AGND0–Thermal earth for power supply
128AGND0–Thermal earth for power supply
129AGND0–Thermal earth for power supply
130AGND0–Thermal earth for power supply
131AGND0–Thermal earth for power supply
132AGND0–Thermal earth for power supply
133AGND0–Thermal earth for power supply
134AGND0–Thermal earth for power supply
135AGND0–Thermal earth for power supply
136AGND0–Thermal earth for power supply
137AGND0–Thermal earth for power supply
138AGND0–Thermal earth for power supply
139AGND0–Thermal earth for power supply
140AGND0–Thermal earth for power supply
141AGND0–Thermal earth for power supply
142AGND0–Thermal earth for power supply
143AGND0–Thermal earth for power supply
144AGND0–Thermal earth for power supply
145AGND0–Thermal earth for power supply
146AGND0–Thermal earth for power supply
147AGND0–Thermal earth for power supply
148AGND0–Thermal earth for power supply
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
GX25
6 – 3
Page 96
GX25
IC104 (LRS1898): FLASH MEMORY
Pin No.Terminal nameInput/OutputDescription of terminal
When deleting/writing: VOL
When interrupting block delete/write: High-Z (High impedance) (Not used)
When deleting/writing block: VIH
When reading: VIH
Reset: VIL
When F-/WP is set to VIL, it is prohibited to cancel lock bit of the block that has lock bit
down set. Deletion and programme operation are executable for the block that has neither
lock bit nor lock down bit set. Disable lock down bit by setting F-/WP to VIH.
When deleting/writing: VPP = VPPH
6 – 4
Page 97
CONFIDENTIAL
Pin No.Terminal nameInput/OutputDescription of terminal
Pin No.Terminal nameInput/OutputDescription of terminal
1ASDOOutputAudio serial port data output to analogue BB
2BSDIInputBaseband serial port data input from analogue BB
3BSOFSOutputBaseband serial port output framing signal output to analogue BB
4GPIO_48InputMode select of software (Pull up)
5VINTInputAnalogue BB interface power supply 1.7 - 3.3 V (VCORE)
6GPO_29OutputAnalogue BB reset output (ABBRESET)
7GPO_5OutputAdvance state machine of analogue BB
8VDDRTCInputRTC power supply 1.0 - 1.9 V (VRTC)
9VSSRTC–RTC earth
10*MC_DAT[0]OutputNot used
11GPIO_22OutputRSP for display controller
12GPIO_56InputBoot control 0
13KEYPADCOL[4]OutputKEYIN signal output 4
14KEYPADCOL[1]OutputKEYIN signal output 1
15KEYPADROW[4]InputKEYIN signal input 4
16KEYPADROW[2]InputKEYIN signal input 2
17GPIO_38InputInterrupt input from sound generator IC
18GPIO_36OutputAOUT3 bias control
19ASDIInputAudio serial port data input from analogue BB
20GPIO_35Input/OutputDC/DC IC SDA
21*ADD[0]OutputNot used
22ASFSInputAudio serial port framing signal input from analogue BB
23BSIFSInputBaseband serial port input framing signal input from analogue BB
24BSDOOutputBaseband serial port data output to analogue BB
25CSDIInputControl serial port data input from analogue BB
26*GPO_6OutputNot used
27GPO_0OutputAnalogue baseband receive section control (RXON)
28OSCOUTOutput32.768 kHz crystal oscillator output
29*MC_DAT[2]OutputNot used
30VMCInputPull down resistor
31VCCInputCore power supply 1.7 - 1.9 V (VCORE)
32KEYPADCOL[3]OutputKEYIN signal output 3
33KEYPADCOL[2]OutputKEYIN signal output 2
34GPIO_39OutputUSB PU control
35GPIO_37InputInterrupt input from analogue BB
36GPIO_34OutputUART_TXD for Bluetooth module
37ADD[4]OutputProcessor address bus 4
38ADD[2]OutputProcessor address bus 2
39GND–Earth
40KEYPADROW[0]InputKEYIN signal input 0
41VEXTInputSystem interface power supply 2.4 - 3.3 V (VINT)
42GPO_23OutputDC/DC IC SCK
43ADD[7]OutputProcessor address bus 7
44VMEMInputMemory power supply 2.7 - 3.3 V (VMEM)
CONFIDENTIAL
1
IN B
IN A
GND
2
3
5
4
VCC
OUT Y
6 – 6
Page 99
CONFIDENTIAL
Pin No.Terminal nameInput/OutputDescription of terminal
45ADD[1]OutputProcessor address bus 1
46CSDOOutputControl serial port data output to analogue BB
47CLKOUT_GATEInputMaster clock enable from analogue BB (MCLKEN)
48GPO_1OutputAnalogue baseband transmit section control (TXON)
49OSCINInput32.768 kHz crystal oscillator input
50*MC_CMDOutputNot used
51GPIO_55InputBoot control 1
52GND–Earth
53KEYPADROW[3]InputKEYIN signal input 3
54KEYPADROW[1]InputKEYIN signal input 1
55GPIO_33InputUART_RXD for Bluetooth module
56GPIO_17OutputPCM data output for Bluetooth module
57ADD[11]OutputProcessor address bus 11
58ADD[9]OutputProcessor address bus 9
59ADD[5]OutputProcessor address bus 5
60ADD[3]OutputProcessor address bus 3
61GND–Earth
62VCCInputCore power supply 1.7 - 1.9 V (VCORE)
63PWRONOutputSystem power control for analogue BB
64*MC_DAT[1]OutputNot used
65GND–Earth
66VEXTInputSystem interface power supply 2.4 - 3.3 V (VINT)
67KEYPADCOL[0]OutputKEYIN signal output 0
68VEXTInputSystem interface power supply 2.4 - 3.3 V (VINT)
69GPIO_15InputPCM data input for Bluetooth module
70GPIO_16OutputPCM SYNC output for Bluetooth module
71ADD[13]OutputProcessor address bus 13
72ADD[12]OutputProcessor address bus 12
73ADD[8]OutputProcessor address bus 8
74ADD[6]OutputProcessor address bus 6
75GPO_22OutputVPP control for flash memory 1
76GPIO_14OutputPCM clock output for Bluetooth module
77GPIO_10InputUSB detection
78GPIO_12OutputReset output for main display controller/external display driver
79VMEMInputMemory power supply 2.7 - 3.3 V (VINT)
80ADD[14]OutputProcessor address bus 14
81GND–Earth
82VCCInputCore power supply 1.7 - 1.9 V (VCORE)
83ADD[10]OutputProcessor address bus 10
84CLKOUTOutput13 MHz clock output for analogue BB (CLKOUT)
85*MC_DAT[3]OutputNot used
86GND–Earth
87GND–Earth
88GPIO_13InputInterrupt input from camera controller
89GPIO_7InputHands free kit (earphone) hooking switch detection
90GPIO_9InputManufacture specific input from I/O connector
91ADD[19]OutputProcessor address bus 19
92ADD[17]OutputProcessor address bus 17
93ADD[18]OutputProcessor address bus 18
94ADD[15]OutputProcessor address bus 15
95ADD[16]OutputProcessor address bus 16
96CSFSOutputControl serial port framing signal output to analogue BB
97*MC_CLKOutputNot used
98VCCInputCore power supply 1.7 - 1.9 V (VCORE)
99GPIO_11InputFlip switch detection
100GPIO_8OutputReset output for Bluetooth module
101*GPIO_5OutputNot used
102*GPIO_6OutputNot used
103ADD[22]OutputProcessor address bus 22
104ADD[21]OutputProcessor address bus 21
105GPIO_40Output13 MHz clock output for display controller & Sound generator IC
106ADD[20]OutputProcessor address bus 20
107GND–Earth
108ADD[23]OutputProcessor address bus 23
GX25
6 – 7
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GX25
Pin No.Terminal nameInput/OutputDescription of terminal
109GND–Earth
110VEXTInputSystem interface power supply 2.4 - 3.3 V (VINT)
111GN D–Ea rth
112GPIO_4OutputUART_CTS for Bluetooth module
113GPIO_2OutputUSB charge current control
114GPIO_3InputUART_RTS for Bluetooth module
115DATA[2]Input/OutputProcessor data bus 2
116DATA[0]Input/OutputProcessor data bus 0
117DATA[5]Input/OutputProcessor data bus 5
118DATA[1]Input/OutputProcessor data bus 1
119DATA[3]Input/OutputProcessor data bus 3
120VCCInputCore power supply 1.7 - 1.9 V (VCORE)
121DMINUSInputUSB D122GPIO_18OutputJTAG TCK
123GND–Earth
124GPIO_1InputIrDA receive data
125USC[5]OutputUSC pin (Ginie_TX)
126GPIO_0OutputIrDA transmit data
127DATA[4]Input/OutputProcessor data bus 4
128VMEMInputMemory power supply 2.7 - 3.3 V (VINT)
129GND–Earth
130VCCInputCore power supply 1.7 - 1.9 V (VCORE)
131USC[6]InputUSC pin (RTC monitor/Ginie_RX)
132VCCInputCore power supply 1.7 - 1.9 V (VCORE)
133USC[2]InputUSC pin (TXD)
134USC[4]OutputReserve
135DATA[7]Input/OutputProcessor data bus 7
136DATA[6]Input/OutputProcessor data bus 6
137GND–Earth
138DATA[9]Input/OutputProcessor data bus 9
139DATA[13]Input/OutputProcessor data bus 13
140NROMCS1OutputChip select for flash memory 1
141GPIO_42OutputChip select for display controller
142CLKINInput13 MHz clock input
143VSIMInputSIM power supply 1.7 - 3.3 V (VSIM)
144GND–Earth
145USC[3]InputPull up to VEXT
146USC[1]InputUSC pin (RXD)
147GND–Earth
148USC[0]OutputUSC pin (Ginie_TX)
149DATA[10]Input/OutputProcessor data bus 10
150DATA[8]Input/OutputProcessor data bus 8
151NRDOutputProcessor read strobe
152DATA[14]Input/OutputProcessor data bus 14
153GND–Earth
154NRAMCS2OutputChip select for camera controller
155*GPIO_44OutputNot used
156VSSUSB–USB earth
157*GPIO_47OutputNot used
158GPIO_20OutputJTAG TDI
159CLKONOutput13 MHz oscillator power control signal (VCXOEN)
160VCCInputCore power supply 1.7 - 1.9 V (VCORE)
161GPO_18OutputSYNTH enable for RF (SYNTHEN)
162GPO_21OutputSYNTH clock output for RF (SYNTHCLK)
163DATA[12]Input/OutputProcessor data bus 12
164DATA[11]Input/OutputProcessor data bus 11
165NWEOutputProcessor write strobe
166VEXTInputSystem interface power supply 2.4 - 3.3 V (VINT)
167GPO_11OutputBand select 4 for RF (BS4)
168GPO_20OutputSYNTH data output for RF (SYNTHDATA)
169DATA[15]Input/OutputProcessor data bus 15
170VMEMInputMemory power supply 2.7 - 3.3 V (VMEM)
171NADVInputHardware version select 1
172NGPCS1OutputChip select for flash memory 2
CONFIDENTIAL
6 – 8
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