Sharp GX20 Service Manual

Download

CONFIDENTIAL

SERVICE MANUAL

No. S9311TQGX20/B

DIGITAL MOBILE PHONE

GX20

MODEL

GX20

(INTERNAL MODEL NAME:

TQ-GX20E/G/R/T/S/H/EP/PP/W/B/D/A/Z/Q/L/F/C)

E : For U.K. R : For Ireland S : For Spain EP: For U.K. (Prepaid) W : For Sweden D : For Greece Z : For New Zealand L : For Malta C : For Switzerland

• In the interests of user-safety the set should be restored to its original condition and only parts identical to those specified should be used.

Caution

•

Risk of explosion if battery is replaced by an incorrect type, dispose of used batteries according to the instruction.

G : For Germany T : For Italy H : For Netherlands PP: For Portugal (Prepaid) B : For Hungary A : For Australia Q : For Egypt F : For France

CONTENTS

CHAPTER 1. GENERAL DESCRIPTION

[1] Specifications ................................................ 1-1

[2] Names of parts .............................................. 1-2

[3] Operation manual.......................................... 1-3

CHAPTER 2. ADJUSTMENTS

[1] Adjustments

SHARP Program Support Tool (SPST

[2] SHARP RF Test tool manual ....................... 2-30

[3] Adjustment procedures

after replacement of the parts .................. 2-36

[4] Test points ................................................... 2-39

[5] Troubleshooting........................................... 2-42

[6] Specification for function test ...................... 2-64

CHAPTER 3. DISASSEMBLY AND REASSEMBLY

[1] Servicing Concerns ....................................... 3-1

[2] Disassembly and reassembly ....................... 3-5

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.

)........ 2-1

SHARP CORPORATION

CHAPTER 4. DIAGRAMS

[1] Block diagram .................................................4-1

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 ..............................5-6

CHAPTER 6. OTHERS

[1] Function table of IC.........................................6-1

[2] Function table of Camera .............................6-27

Parts Guide

This document has been published to be used for after sales service only. The contents are subject to change without notice.

GX20

OZ/IQ/YO/CalcGX20Service ManualTQGX20MarketE

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): 95 x 49 x 25 mm

Weight: 102 g Battery operating temperature: 0°C - 40°C Main display: Display dimensions: 320 x 240 pixels

LCD display: CGS 262,144 colours with backlight LCD backlight: LED backlight white colour LEDs

External display: Display dimensions: 60 x 80 pixels

Camera: CCD 350K pixels built-in camera

LCD display: STN 256 colours LCD with backlight

Zoom: Wide and zoom mode [Supported 4 (when image size is 120 x 160 pixels) x zoom] Lens: F2.8, f = 2.6 mm

Sound: 16-polyphonic ring melodies Mobile light: 7 colours External DC

supply voltage: 5.2 V Battery: 3.7 V, 720 mAh, Li-Ion Standby time: 100 ~ 250 hours Talk tim e: 180 ~ 240 min. 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 ranning 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.

rights reserved. Java and all Java-based trademarks and logos are trademarks or registered trademarks of Sun Microsystems, Inc. in the U.S. and other countries. JBlend and all JBlend-based trademarks and logos are trademarks or registered trademarks of Aplix Corporation in Japan and other countries.

In this product, JBlend is incorporated.

JBlend is a Java execution environment

that Aplix developed for implementing advanced performance and fast operation on small-memory systems. JBlend and JBlend logo are trademarks or registered trademarks of Aplix Corporation in Japan and other countries.

Mascot Capsule is a registered trademark of HI Corpora-

/Micro3D Edition

tion

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.

Licensed under U.S. Patent 4,558,302 and foreign counterparts.

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, Fl, FR, IT, NL,PT.ES,SE,GB; Republic or Korea Pat. Nos. KR201211B1 and KR226206B1; and additional patents are pending worldwide.

1 – 1

[2] Names of parts

CONFIDENTIAL

GX20

2 3

5 6

10 11 12

14 15

1. Earpiece

2. Navigation Keys (Arrow Keys):

Moves cursor to select menu items, etc.

, , , in this

Up/Down arrow keys: Displays Contacts List

Left arrow key: Displays list of

Right arrow key: Displays list of Saved

3. Centre Key: Displays Main menu in

4. Left Soft Key: Executes the function at the

5. Send Key: Makes or accepts calls,

6. Voice Mail Key: Press and hold this key to

7. * /Shift Key,

Viewfinder Switch Key:

8. Main Display

9. Hands Free Connector

10. Right Soft Key: Executes the function at the

11. “Vodafone live!” Key:

manual indicate these keys.

entries in stand-by mode.

Applications in stand-by mode.

Pictures in stand-by mode.

stand-by mode and executes functions.

in this manual indicates

this key.

bottom left of the screen.

in this manual indicates

this key.

views the call in stand-by mode.

connect to the Voice mail centre automatically. (Depends on the SIM card.)

Enters *. Press and hold this key to switch input method among four modes: Abc, ABC, abc and 123. Switches viewfinders between main display and external display in digital camera/video camera mode.

bottom right of the screen.

in this manual indicates

this key.

Used to access “Vodafone live!” by opening the browser.

18 19

23 24

12. End/Power Key: Ends a call, turns power on/

13. Keypad

14. #/Flash light Key: Switches symbol screens.

15. Microphone

16. External Connector:

17. Aerial

18. Mobile Light: Usedasaflashoran

19. Macro Dial: Turns the dial to normal (Close-up) ( ) or macro ( )

20. Camera

21. External Display

22.InfraredPort: Sends and receives data via

23. Speaker

24. RF Connector

25. Side-Up/Side-Down Keys:

26. Battery Cover

off.

Press and hold this key to shift text input method between multi-tap and T9 mode. Turns the flash/auxiliary light on or off in digital camera/video camera mode.

Used to connect either the charger or data cable.

auxiliary light in digital camera/video camera mode, as a battery charge indicator, or notification for incoming calls, data/fax calls or messages.

position.

infrared.

Moves cursor to select menu items, adjusts earpiece volume, etc. In stand-by mode, press and hold this key to turn the mobile light on and off. When the mobile light is on, press this key to change the light colour.

1 – 2

GX20

CONFIDENTIAL

[3] Operation manual

(Page numbers refer to the user guide)

[Optional Accessories]

• Li-ion spare battery (XN-1BT11)

• High capacity Li-ion battery (XN-1BT13)

• Cigarette lighter charger (XN-1CL10)

• Data cable (RS232C cable: XN-1DC10)

• AC charger (Except for France: XN-1QC10, XN-1QC11) (for France: XN-1QC11)

The above accessories may not be available in all regions. For details, please contact your dealer.

[Quickstart Guide]

QUICKSTART GUIDE

1: GETTING STARTED

The Sharp GX20 is one of the most advanced mobile handsets available. With it you will be

able to use its built-in camera to take pictures and video clips, play arcade quality games,

listen to life-like polyphonic ringtones and sounds, send Multimedia messages, and connect

to Vodafone live! and the mobile internet.

But before you can do any of this, first you need to make sure your handset is prepared.

SIM card

In just a few minutes this QuickStart Guide will show you how to use

some of the main features of your new GX20.

(Except for France, Swiss)

1. Inserting your SIM card:

Slide off the battery cover, and remove the battery. Slide your Vodafone SIM card (with the

gold contacts facing downwards) into its holder. Replace the battery and cover.

2. Charging the battery:

Before using your handset for the first time, it’s important to charge the battery for at least 2

hours (see page 14 of the Manual).

3. Turning it on and off:

Open the handset, then press and hold the red key. Do the same to turn it off again.

softkeys.

thanks to the 5-way central navigation key and the contextual

The GX20 has many features, but exploring and using them is simple,

(In Standby): Brings up commonly used menus (Contacts List, Applications and Saved

Exit

Select

Pictures).

screen. The softkey selects the bottom right of the screen (this usually acts as

The softkey selects whatever icon or command is shown in the bottom left of the

Cancel or Back.) The key will select what’s in the middle.

(When ringing): Answers a call.

(In Standby): Brings up Last Dialled numbers.

(During call): Ends a call.

(Press and hold): Turns handset on and off.

(In menus): Takes you back to the Standby screen.

Takes you to the Vodafone live! home page.

bySHARP

QUICKSTART GUIDE

2: NAVIGATION

(Centre key): Use to select an icon or menu item.

In Standby: Takes you to the main Menu (shown in phone).

In Camera mode: Takes a picture or starts/stops video recording.

(Navigation keys): Use to move between icons in menus and item lists.

Camera

1 – 3

QUICKSTART GUIDE

5. Add a sound file: ( symbol in message menu bar)

Press [Options] and select Sound. To listen to the sounds, press [Options], then Play.

Hi there - wait til you

Highlight the sound you want, press , then press [Back].

see this!

6. Preview your message:

Then press [Options], and select Preview Message. If you’re happy with the message,

press , then again to go to the To: screen.

7. Send to another mobile:

Enter the number of the mobile phone you want to send it to. Press , then select Send

and press again. If the receiving phone can’t display Multimedia messages or video

Options Back

clips, they’ll be sent a link to a web page they can view them on.

Tip: Try sending it to yourself to see how it works!

abc

To:

Tip: Press [Options], then select Search in the To: screen to bring up your Contacts list.

[Back]. Then write the email address (using the key to bring up the symbols menu for

the @ key). Press , then select Send and press again.

8. Send to an email address:

After Step 6, press [Options], and select Input Method. Choose abc and then press

21/60

eric.wise@hotmail.com

CONFIDENTIAL

Then choose the mobile number or email address for the contact you wish to send it to. It

will be entered in the To: screen automatically.

Clear

Options

Vodafone live! is a mobile internet portal which is your gateway to a

new world of information, games, music and sevices.

QUICKSTART GUIDE

5: Vodafone live!

Connect to Vodafone live!:

Simply press the key (under the Navigation key) to connect you to the Vodafone live!

main menu. To exit, press the key.

Messages

New

Tip: Your GX20 uses GPRS, a fast way of getting mobile information. Also, the connection

is ‘always on’ — which means no wait for dialling up. You only pay for data you send or get,

not how long you’re connected.

Download

Chat

Games: Online fun and games to download...

Or link directly to Vodafone live! services:

In the main Menu, select the Vodafone live! section, and choose your service:

More...

Games

Ringtones: Download music, sounds and ringtones.

Help &

Vodafone

Pictures: Download images, animations and background wallpaper.

News: Get the latest news as it happens...

This works very like an

ordinary web browser. Use

Sport: News, results and latest scores (with pictures).

Find & Seek: Get the local information you need, wherever you are.

the navigation keys to

highlight the item you want

Chat: Instant messaging and text chat with all your friends.

Search: Find what you need in Vodafone live!

to select, then press to

Tip: Vodafone live! is growing and changing all the time, so these options may vary. Keep

open that page. Press

[Back] to go back a page.

checking it out to see what’s new.

Press [Options] for the

GX20

Browser Option menu.

3: THE CAMERA

QUICKSTART GUIDE

The GX20’s built-in camera now lets you take video clips, as well as

having digital zoom and even a flash. Once you’ve taken your video

iii

Save (it will be saved in My Stuff

any problems call your local Vodafone customer services.

Life is more than just text. With Multimedia Messaging you can now

enabled to send and receive Multimedia Messaging, but if you have

send videoclips, picturesand sounds as well!Your handset is already

through the Input Method (capitals, numeric, etc.).

3. Add your video clip: ( symbol in message menu bar)

Press [Options] and select Video Clip. Highlight the clip you want to send. Press ,

then press [Back].

Tip: To send video you may have to adjust the setting. Select Multimedia Messages in the

Abc

9 T

32KB 34/2000

Message:

Messages menu, then press [Options]. Choose Settings, Slide Show then make sure

Options

see this!

(you’ll see the T9 symbol at the top of the screen). Press and hold the key to cycle

Use the keypad to write your text. To enter punctuation or other characters, press the

key, then select the symbol you want. For a space, press .

Tip: To turn Predictive Text (T9) off and on while entering text, press and hold the key

Clear

Options

2. Write your message:

Multimedia Messages,thenCreate Message.

1. Create a new Multimedia message:

Abc

9 T

Select Messages in the main Menu (or press the key in Standby mode). Select

32KB 34/2000

Message:

Hi there - wait til you

and take it again.

Tip: You can change the camera viewfinder to the external display (for taking pictures/

videos of yourself) by pressing the key. And you can adjust the Macro dial around the

in the main Menu). If not, press [Cancel], and try again.

4. Digital Camera mode:

Choose Digital Camera in the Camera menu (or press the key in Standby mode).

Macro

External

display

Press to take the picture. Press [Save] to save it (in My Stuff), or press [Cancel]

dial

keys. Then press to start recording. When you’ve finished, press again.

3. Saving your video:

Now you’ll be offered the choice of Save or Preview.ChoosePreview to review your clip,

Stop

then press [Back]. If you’re happy with the clip, select

2. Recording a video clip:

The screen becomes your viewfinder. You can zoom in (up to 4×) by pressing the key

1. Video Camera mode:

Go to the main Menu (press in Standby mode), select the Camera icon (you’ll see the

Fine 0 x1

or picture you can save it, then send it to others at a mobile number

or email address (see next page).

(the key zooms out again). You can also adjust the brightness using the and

word ‘Camera’ in the red title bar), then press . Select Video Camera.

lens to take close-up shots ( ).

QUICKSTART GUIDE

4: MULTIMEDIA MESSAGING

that Off is selected.

Picture

Sound

Video Clip

4. Add your picture: ( symbol in message menu bar)

Message Template

[Back].

Press [Options] and select Picture. Highlight the picture you want, press , then press

Text Template

Preview Message

Select Back

1 – 4

GX20

6: DOWNLOADING

QUICKSTART GUIDE

You can download from the Vodafone live! portal or the handset shortcuts (see previous

page), or use the Download More menus:

1. Download a new ringtone:

Your GX20 uses polyphonicringtones for a more life-likesound. Go to the MyStuff section

from themain Menu, choose Soundsand then Download More.Choose the ringtoneyou’d

CONFIDENTIAL

vii

menus and options screens...

more information in the manual — or you could just explore all the

Here are a few tips to help you use your new handset. There’s much

1. Silent mode:

To switch your handset to silent mode, press and hold the key. Highlight the Silent

profile and select it. Select the Normal profile to go back to your usual setting.

2. International dialling:

Press and hold the key for the (+) sign when dialling international numbers.

3. Voice Memo:

downloaded ringtone.

2. Download new background wallpaper:

To choose a new background image for your phone, go to My Stuff/Pictures/

like and follow the instructions to download it.

Tip: Toactivate your ringtone,go to Profiles (inthe main Menu),then choose Normal,then

select Options/Personalise/Assign Melody. Choose My Sounds and select your

Download More. Choose an image and follow the instructions to download it. Then go to

Settings (in the main Menu)/Phone Settings/Main Display/Wallpaper/My Pictures, and

select your downloaded image.

3. Download new games:

To addmore arcade qualitygames to yourhandset, go to Fun & Games(in the main Menu)

and choose Games & More/Download More. Choose a game to download, and you’ll find

it in Fun & Games/Games & More/Applications.

Press then to bring up theVoice Memo application.Press to record, and again

to stop. You can send voice memos as part of a Multimedia message.

4. Front light:

light onand off (itcan be usedas a makeshift torch).Press the sidekey to change the colour

(the last selection cycles through them all like a disco light).

Settings from the main Menu, then choose External Display. Now you can change the way

5. External display:

You cancustomise your External displayin the same wayas your main screen. Goto Phone

the clock looks, the background picture, even the icon displayed when there’s a call...

Press and hold the side key on the left side of the handset (in Standby mode) to turn the

Personalise your new handset by downloading new ringtones,

images and background wallpaper from Vodafone live!. All

downloads are saved in the My Stuff section of the main Menu.

Incoming Indication

Clock Display

Icon Display

LCD On/Off

Back

Select

viii

Back

1-1-3

Normal

Pattern 1

Ringer VolumeDownload More

Assign Melody

Vibration

Keypad Tones

Warning Tone

Power On Sound

Power Off Sound

Message Alert

Save

Games & More

Applications

Screensavers

Download More

Settings

Javaª Information

Back

Select

QUICKSTART GUIDE

7: TIPS AND TRICKS

Voice Memo

Ready to record

Start Back

External Display

Illustration 1

Wallpaper

Backlight

LCD Contrast

1 – 5

CONFIDENTIAL

OZ/IQ/YO/CalcGX20Service ManualTQGX20MarketE

CHAPTER 2. ADJUSTMENTS

[1] Adjustments SHARP Program Support Tool (SPST)

1. Outline

This document provides user information required to install and use GX20 Program Support Tool (SPST).

2. System requirements

• IBM PC compatible personal computer (standard COM1 serial port (115,200 bps) and USB required) Supporting OS: Windows 98/98SE/2000/XP (except for Windows 95/ME/NT) (English, German, Italian, Spanish, French and Chinese versions)

• Data cable

• Full charged battery

• RF test instrument: CMU200

• GPIB interface: National Instruments USB-GPIB cable Model No.: NI GPIB-USB-B

• The battery should be fully charged.

3. Introduction

GX20

3.1. Functions

SPST offers five key functions:

1. Software download

2. User data transfer (processes all data at once but not individually)

3. RF calibration

4. Default setting

5. Identification

SPST functions as a launcher for these independent software programs.

3.2. Installation

The SPST software is distributed in CD-ROM format.

1) Use Windows Explorer and copy “UpgradingTool.zip” and “SPST.zip” to the desktop.

2) Unzip and install “UpgradingTool.zip” following the procedures below.

3) Unzip the “SPST.zip”.

Hereinafter, procedures are carried out in the SPST folder.

3.2.1 Starting up

Connect GX20 to an operable serial port of the PC with the supplied data cable. Connect the AC charger to the Data cable. Execute the GX20 SPST.exe program in the SPST folder.

1) The SPC input screen appears. Input SPC (2968) and press “OK”. If you do not know SPC, press “Cancel” to close.

Figure 1

2 – 1

GX20

2) If SPC is correct, the following screen appears.

The software for each function is independent and thus multi-bootable. However, you can only activate single software at a time. To start snother software, exit the current one.

3) Click the “Change Password” button in Step 1. The screen below appears and you can change SPC.

CONFIDENTIAL

Figure 2

3.3. Functions

3.3.1 Identification

SPST downloads and displays the main data configured in GX20.

1) On the SPST startup screen, press “Identity”.

2) Connect PC and MS with a Data cable.

3) Remove the SIM card and turn on the phone. → Regular display.

4) Select the COM port.

5) Press “Get Identity”. → The information will be displayed.

Figure 3

Figure 4

2 – 2

CONFIDENTIAL

6) IMEI will be displayed, and the following dialog box appears.

7) Make sure GX20 is turned off and press the power key.

8) Press “OK” when **** appears on the GX20 display.

9) Make sure “Success!!” appears. Check the data and exit.

GX20

Figure 5

Refer to the attachment 1 for the operator code.

Software version: 012 IMEISV: 06

Figure 6

Attachment 1 Operator Code Chart

No. Operator name Country Model name

01 Vodafone UK Post-Paid UK A4TQGX20E 02 Airtel Post-Paid Spain A4TQGX20S 03 SFR Post-Paid France A4TQGX20F 04 Vodafone Omnitel Post-Paid Italy A4TQGX20T 05 D2 Post-Paid Germany A4TQGX20G 06 Vodafone NL Post-Paid Netherlands(Holland) A4TQGX20H 08 Vodafone Ireland Post-Paid Ireland A4TQGX20R 10 Vodafone Greece Post-Paid Greece A4TQGX20D 11 Vodafone Hungary Post-Paid Hungary A4TQGX20B 12 Vodafone Australia Post-Paid Australia A4TQGX20A 13 Vodafone New Zealand Post-Paid New Zealand A4TQGX20Z 14 Vodafone Sweden Post-Paid Sweden A4TQGX20W 15 Vodafone Egypt Post-Paid Egypt A4TQGX20Q 16 Vodafone Malta Post-Paid Malta A4TQGX20L 17 Swisscom Post-Paid Switzerland A4TQGX20C 48 Vodafone PT Pre-Paid Portugal A4TQGX20PP 50 Vodafone UK Pre-Paid UK A4TQGX20EP

2 – 3

GX20

CONFIDENTIAL

3.3.2 User data transfer SPST saves and downloads all the following user data.

1) Connect PC and MS with a Data cable and turn on MS.

2) Activate the software.

Figure 7

a) Select the COM port. You cannot specify the communication protocol. (115 kbps)

b) Press “Recognition”.

Do not press “Recognition” until “InsertSIM” appears.

3) Press either “BACKUP”, “RESTORE” or “END”.

Figure 8

2 – 4

CONFIDENTIAL

4) If “BACKUP” is pressed, the dialog box for file selection appears. Select the file and press “Save”.

Figure 9

The buttons are grayed out during the process.

GX20

Firue 10

2 – 5

GX20

When they return to black, the process is complete. Press “END” to exit.

5) If “RESTORE” is pressed, the following confirmation dialog box appears. Press “OK” to confirm.

CONFIDENTIAL

Figure 11

Figure 12

The dialog box for file selection appears. Select the file and press “Open”.

Figue 13

2 – 6

The buttons are grayed out during the process. The process is complete when the buttons turn black.

CONFIDENTIAL

GX20

Figure 14

3.3.3 Default setting

You can reset settings to the factory default. The following will be performed:

1. All user data in the file system is deleted.

2. All WAP settings return to the default.

3. All values set by users return to the default.

4. 1) MEPLOCK setting remains unchanged. When “MEPLOCK Set Default” is unchecked: MEPLOCK remains disabled if canceled after shipment. Check “MEPLOCK Set Default” to activate it.

2) MEPLOCK setting returns to the factory default. Check “MEPLOCK Set Default”. Even if canceled after shipment, MEPLOCK is activated. (MEPLOCK is not activated when units are shipped to some countries and remains disabled. Check the country code.)

1) Connect the cable to the phone.

2) Press the power button to enter the standby mode.

3) Click the “Set to Default” button.

Figure 15

2 – 7

GX20

4) Click the “OK” button, The display changes as follows:

CONFIDENTIAL

H/W CHECK ROM VERSION : 002

GX20 Diag Version. 1.3 CVS A07-005-0094-GX20 BLCD (256): 091 +001 BLCD (64k): 077

Check the version. It takes approx. 35 seconds for initialization.

∗ GX20 ∗

Figure 16

Figure 17

5) When MEPLOCK data exists, the screen below appears asking if the data should be restored. If there is no data, the screen in 8) appears.

Figure 18

6) Select [Yes]. After the following screen, turn on the phone power and click the [Retry] button. To cancel the operation, click the [Cancel] button.

Figure 19

2 – 8

CONFIDENTIAL

7) The screen below is displayed after initialization and the phone turns off.

Figure 20

8) Click the [OK] button. After the following screen, disconnect the cable.

GX20

The setting is completed.

3.3.4 RF Adjustment Tool

1) Tool layout

Figure 21

GSM tester

GPIB cable

Data cable

Cable loss should be adjusted according to the input value.

Figure 22

2 – 9

GX20

2) Preparation

• Connect PC and GSM tester with a GPIB cable.

• Connect PC and MS with a Data cable. (Use a full charged battery or one close.)

• Connect an antenna input/output cable of GSM tester to MS.

3) Default setting for the program.

• Activate the program and set defaults.

CONFIDENTIAL

1) Select the COM port.

2) Set the GPIB No.

3) Select the test instrument.

4) Set the GPIB address.

Figure 23

5) Set the cable loss. For the supplied cables (YA00-0988-03), set:

GSM 0.60 DCS 0.95 PCS 0.96

2 – 10

CONFIDENTIAL

4) RF adjustment

1. Press “Calibration”.

2. When initialization is complete, press “OK”.

3. Turn on the phone and press “OK”.

4. Make sure the phone is turned on and press “OK”. (Adjustments start.)

GX20

Figure 24

Figure 25

5. Press “OK”.

6. The startup screen appears.

Figure 26

Figure 27

2 – 11

GX20

CONFIDENTIAL

5) RF performance check

Press “Check”.

1. When initialization is complete, press “OK”.

2. Turn on the phone, enter the PIN code and press “OK”.

3. Make sure that the phone is in the idle mode and press “OK”.

Figure 28

Figure 29

Figure 30

4. Press the keys 1, 2, 3 and Send and press “OK”.

Figure 31

5. Make sure the terminal display is “In Call” and press “OK”. (RF performance check starts.)

Figure 32

6. The following message appears during the check. Press the keys 1, 2, 3 and Send again and press “OK”.

Figure 33

2 – 12

CONFIDENTIAL

7. Make sure the terminal display is “In Call” and press “OK”.

Figure 34

8. RF performance check is complete. Press “Save As…”and name the file to save the result. Press “OK” to exit.

GX20

The following will be displayed in case of failure.

9. Press “OK”.

Figure 35

Figure 36

10.The startup screen appears.

Figure 37

2 – 13

GX20

Attachment 2 Whole inspection list by RF performance check.

Band Send-

Recei

GSM Tx 1 Sending output 37CH PCL5 band 2 Sending output 975CH PCL5

No. Item to be inspected Chan-

ing/

3 Sending output 124CH PCL5 4 Sending output 37CH PCL11 5 Sending output 37CH PCL19 6 Frequency deviation 37CH PCL5 7 Frequency deviation 975CH PCL5 8 Frequency deviation 124CH PCL5 9 Phase error (RMS) 37CH PCL5 10 Phase error (RMS) 975CH PCL5 11 Phase error (RMS) 124CH PCL5 12 Phase error (Peak) 37CH PCL5 13 Phase error (Peak) 975CH PCL5 14 Phase error (Peak) 124CH PCL5 15 Mod_spectrum –800 37CH PCL5 16 Mod_spectrum –600 37CH PCL5 17 Mod_spectrum –400 37CH PCL5 18 Mod_spectrum –250 37CH PCL5 19 Mod_spectrum –200 37CH PCL5 20 Mod_spectrum +200 37CH PCL5 21 Mod_spectrum +250 37CH PCL5 22 Mod_spectrum +400 37CH PCL5 23 Mod_spectrum +600 37CH PCL5 24 Mod_spectrum +800 37CH PCL5 25 Mod_spectrum –800 975CH PCL5 26 Mod_spectrum –600 975CH PCL5 27 Mod_spectrum –400 975CH PCL5 28 Mod_spectrum –250 975CH PCL5 29 Mod_spectrum –200 975CH PCL5 30 Mod_spectrum +200 975CH PCL5 31 Mod_spectrum +250 975CH PCL5 32 Mod_spectrum +400 975CH PCL5 33 Mod_spectrum +600 975CH PCL5 34 Mod_spectrum +800 975CH PCL5 35 Mod_spectrum –800 124CH PCL5 36 Mod_spectrum –600 124CH PCL5 37 Mod_spectrum –400 124CH PCL5 38 Mod_spectrum –250 124CH PCL5 39 Mod_spectrum –200 124CH PCL5 40 Mod_spectrum +200 124CH PCL5 41 Mod_spectrum +250 124CH PCL5 42 Mod_spectrum +400 124CH PCL5 43 Mod_spectrum +600 124CH PCL5 44 Mod_spectrum +800 124CH PCL5 45 Mod_spectrum –800 37CH PCL11 46 Mod_spectrum –600 37CH PCL11 47 Mod_spectrum –400 37CH PCL11 48 Mod_spectrum –250 37CH PCL11 49 Mod_spectrum –200 37CH PCL11 50 Mod_spectrum +200 37CH PCL11 51 Mod_spectrum +250 37CH PCL11 52 Mod_spectrum +400 37CH PCL11 53 Mod_spectrum +600 37CH PCL11 54 Mod_spectrum +800 37CH PCL11 55 Mod_spectrum –800 37CH PCL19 56 Mod_spectrum –600 37CH PCL19 57 Mod_spectrum –400 37CH PCL19 58 Mod_spectrum –250 37CH PCL19 59 Mod_spectrum –200 37CH PCL19 60 Mod_spectrum +200 37CH PCL19

CONFIDENTIAL

nel

PCL

Band Send-

Recei

Rx 110 Reception sensitivity 37CH PCL5

DCS Tx 115 Sending output 699CH PCL0 band 116 Sending output 512CH PCL0

No. Item to be inspected Chan-

ing/

61 Mod_spectrum +250 37CH PCL19 62 Mod_spectrum +400 37CH PCL19 63 Mod_spectrum +600 37CH PCL19 64 Mod_spectrum +800 37CH PCL19 65 Switch_Spectrum –1800 37CH PCL5 66 Switch_Spectrum –1200 37CH PCL5 67 Switch_Spectrum –600 37CH PCL5 68 Switch_Spectrum –400 37CH PCL5 69 Switch_Spectrum +400 37CH PCL5 70 Switch_Spectrum +600 37CH PCL5 71 Switch_Spectrum +1200 37CH PCL5 72 Switch_Spectrum +1800 37CH PCL5 73 Switch_Spectrum –1800 975CH PCL5 74 Switch_Spectrum –1200 975CH PCL5 75 Switch_Spectrum –600 975CH PCL5 76 Switch_Spectrum –400 975CH PCL5 77 Switch_Spectrum +400 975CH PCL5 78 Switch_Spectrum +600 975CH PCL5 79 Switch_Spectrum +1200 975CH PCL5 80 Switch_Spectrum +1800 975CH PCL5 81 Switch_Spectrum –1800 124CH PCL5 82 Switch_Spectrum –1200 124CH PCL5 83 Switch_Spectrum –600 124CH PCL5 84 Switch_Spectrum –400 124CH PCL5 85 Switch_Spectrum +400 124CH PCL5 86 Switch_Spectrum +600 124CH PCL5 87 Switch_Spectrum +1200 124CH PCL5 88 Switch_Spectrum +1800 124CH PCL5 89 Switch_Spectrum –1800 37CH PCL11 90 Switch_Spectrum –1200 37CH PCL11 91 Switch_Spectrum –600 37CH PCL11 92 Switch_Spectrum –400 37CH PCL11 93 Switch_Spectrum +400 37CH PCL11 94 Switch_Spectrum +600 37CH PCL11 95 Switch_Spectrum +1200 37CH PCL11 96 Switch_Spectrum +1800 37CH PCL11 97 Switch_Spectrum –1800 37CH PCL19 98 Switch_Spectrum –1200 37CH PCL19 99 Switch_Spectrum –600 37CH PCL19 100 Switch_Spectrum –400 37CH PCL19 101 Switch_Spectrum +400 37CH PCL19 102 Switch_Spectrum +600 37CH PCL19 103 Switch_Spectrum +1200 37CH PCL19 104 Switch_Spectrum +1800 37CH PCL19 105 Burst Timing 37CH PCL5 106 Burst Timing 975CH PCL5 107 Burst Timing 124CH PCL5 108 Burst Timing 37CH PCL11 109 Burst Timing 37CH PCL19

111 Reception sensitivity 975CH PCL5 112 Reception sensitivity 124CH PCL5 113 Floor sensitivity 2 37CH PCL5 114 Reception level report 37CH PCL5

117 Sending output 855CH PCL0 118 Sending output 699CH PCL5 119 Sending output 699CH PCL15 120 Frequency deviation 699CH PCL0 121 Frequency deviation 512CH PCL0 122 Frequency deviation 885CH PCL0

nel

PCL

2 – 14

Band Send-

ing/

Recei

CONFIDENTIAL

No. Item to be inspected Chan-

nel

123 Phase error (RMS) 699CH PCL0 124 Phase error (RMS) 512CH PCL0 125 Phase error (RMS) 885CH PCL0 126 Phase error (Peak) 699CH PCL0 127 Phase error (Peak) 512CH PCL0 128 Phase error (Peak) 855CH PCL0 129 Mod_spectrum –800 699CH PCL0 130 Mod_spectrum –600 699CH PCL0 131 Mod_spectrum –400 699CH PCL0 132 Mod_spectrum –250 699CH PCL0 133 Mod_spectrum –200 699CH PCL0 134 Mod_spectrum +200 699CH PCL0 135 Mod_spectrum +250 699CH PCL0 136 Mod_spectrum +400 699CH PCL0 137 Mod_spectrum +600 699CH PCL0 138 Mod_spectrum +800 699CH PCL0 139 Mod_spectrum –800 512CH PCL0 140 Mod_spectrum –600 512CH PCL0 141 Mod_spectrum –400 512CH PCL0 142 Mod_spectrum –250 512CH PCL0 143 Mod_spectrum –200 512CH PCL0 144 Mod_spectrum +200 512CH PCL0 145 Mod_spectrum +250 512CH PCL0 146 Mod_spectrum +400 512CH PCL0 147 Mod_spectrum +600 512CH PCL0 148 Mod_spectrum +800 512CH PCL0 149 Mod_spectrum –800 855CH PCL0 150 Mod_spectrum –600 855CH PCL0 151 Mod_spectrum –400 855CH PCL0 152 Mod_spectrum –250 855CH PCL0 153 Mod_spectrum –200 855CH PCL0 154 Mod_spectrum +200 855CH PCL0 155 Mod_spectrum +250 855CH PCL0 156 Mod_spectrum +400 855CH PCL0 157 Mod_spectrum +600 855CH PCL0 158 Mod_spectrum +800 855CH PCL0 159 Mod_spectrum –800 699CH PCL5 160 Mod_spectrum –600 699CH PCL5 161 Mod_spectrum –400 699CH PCL5 162 Mod_spectrum –250 699CH PCL5 163 Mod_spectrum –200 699CH PCL5 164 Mod_spectrum +200 699CH PCL5 165 Mod_spectrum +250 699CH PCL5 166 Mod_spectrum +400 699CH PCL5 167 Mod_spectrum +600 699CH PCL5 168 Mod_spectrum +800 699CH PCL5 169 Mod_spectrum –800 699CH PCL15 170 Mod_spectrum –600 699CH PCL15 171 Mod_spectrum –400 699CH PCL15 172 Mod_spectrum –250 699CH PCL15 173 Mod_spectrum –200 699CH PCL15 174 Mod_spectrum +200 699CH PCL15 175 Mod_spectrum +250 699CH PCL15 176 Mod_spectrum +400 699CH PCL15 177 Mod_spectrum +600 699CH PCL15 178 Mod_spectrum +800 699CH PCL15 179 Switch_Spectrum –1800 699CH PCL0 180 Switch_Spectrum –1200 699CH PCL0 181 Switch_Spectrum –600 699CH PCL0 182 Switch_Spectrum –400 699CH PCL0 183 Switch_Spectrum +400 699CH PCL0 184 Switch_Spectrum +600 699CH PCL0

PCL

GX20

Band Send-

Recei

Rx 224 Reception sensitivity 699CH PCL0

PCS Tx 229 Sending output 661CH PCL0 band 230 Sending output 512CH PCL0 (CMU 200 232 Sending output 661CH PCL5 only) 233 Sending output 661CH PCL15

No. Item to be inspected Chan-

ing/

185 Switch_Spectrum +1200 699CH PCL0 186 Switch_Spectrum +1800 699CH PCL0 187 Switch_Spectrum –1800 512CH PCL0 188 Switch_Spectrum –1200 512CH PCL0 189 Switch_Spectrum –600 512CH PCL0 190 Switch_Spectrum –400 512CH PCL0 191 Switch_Spectrum +400 512CH PCL0 192 Switch_Spectrum +600 512CH PCL0 193 Switch_Spectrum +1200 512CH PCL0 194 Switch_Spectrum +1800 512CH PCL0 195 Switch_Spectrum –1800 855CH PCL0 196 Switch_Spectrum –1200 855CH PCL0 197 Switch_Spectrum –600 855CH PCL0 198 Switch_Spectrum –400 855CH PCL0 199 Switch_Spectrum +400 855CH PCL0 200 Switch_Spectrum +600 855CH PCL0 201 Switch_Spectrum +1200 855CH PCL0 202 Switch_Spectrum +1800 855CH PCL0 203 Switch_Spectrum –1800 699CH PCL5 204 Switch_Spectrum –1200 699CH PCL5 205 Switch_Spectrum –600 699CH PCL5 206 Switch_Spectrum –400 699CH PCL5 207 Switch_Spectrum +400 699CH PCL5 208 Switch_Spectrum +600 699CH PCL5 209 Switch_Spectrum +1200 699CH PCL5 210 Switch_Spectrum +1800 699CH PCL5 211 Switch_Spectrum –1800 699CH PCL15 212 Switch_Spectrum –1200 699CH PCL15 213 Switch_Spectrum –600 699CH PCL15 214 Switch_Spectrum –400 699CH PCL15 215 Switch_Spectrum +400 699CH PCL15 216 Switch_Spectrum +600 699CH PCL15 217 Switch_Spectrum +1200 699CH PCL15 218 Switch_Spectrum +1800 699CH PCL15 219 Burst Timing 699CH PCL0 220 Burst Timing 512CH PCL0 221 Burst Timing 855CH PCL0 222 Burst Timing 699CH PCL5 223 Burst Timing 699CH PCL15

225 Reception sensitivity 512CH PCL0 226 Reception sensitivity 855CH PCL0 227 Floor sensitivity 2 699CH PCL0 228 Reception level report 699CH PCL0

231 Sending output 810CH PCL0

234 Frequency deviation 661CH PCL0 235 Frequency deviation 512CH PCL0 236 Frequency deviation 810CH PCL0 237 Phase error (RMS) 661CH PCL0 238 Phase error (RMS) 512CH PCL0 239 Phase error (RMS) 810CH PCL0 240 Phase error (Peak) 661CH PCL0 241 Phase error (Peak) 512CH PCL0 242 Phase error (Peak) 810CH PCL0 243 Mod_spectrum –800 661CH PCL0 244 Mod_spectrum –600 661CH PCL0 245 Mod_spectrum –400 661CH PCL0 246 Mod_spectrum –250 661CH PCL0

nel

PCL

2 – 15

GX20

Band Send-

ing/

Recei

No. Item to be inspected Chan-

nel

247 Mod_spectrum –200 661CH PCL0 248 Mod_spectrum +200 661CH PCL0 249 Mod_spectrum +250 661CH PCL0 250 Mod_spectrum +400 661CH PCL0 251 Mod_spectrum +600 661CH PCL0 252 Mod_spectrum +800 661CH PCL0 253 Mod_spectrum –800 512CH PCL0 254 Mod_spectrum –600 512CH PCL0 255 Mod_spectrum –400 512CH PCL0 256 Mod_spectrum –250 512CH PCL0 257 Mod_spectrum –200 512CH PCL0 258 Mod_spectrum +200 512CH PCL0 259 Mod_spectrum +250 512CH PCL0 260 Mod_spectrum +400 512CH PCL0 261 Mod_spectrum +600 512CH PCL0 262 Mod_spectrum +800 512CH PCL0 263 Mod_spectrum –800 810CH PCL0 264 Mod_spectrum –600 810CH PCL0 265 Mod_spectrum –400 810CH PCL0 266 Mod_spectrum –250 810CH PCL0 267 Mod_spectrum –200 810CH PCL0 268 Mod_spectrum +200 810CH PCL0 269 Mod_spectrum +250 810CH PCL0 270 Mod_spectrum +400 810CH PCL0 271 Mod_spectrum +600 810CH PCL0 272 Mod_spectrum +800 810CH PCL0 273 Mod_spectrum –800 661CH PCL5 274 Mod_spectrum –600 661CH PCL5 275 Mod_spectrum –400 661CH PCL5 276 Mod_spectrum –250 661CH PCL5 277 Mod_spectrum –200 661CH PCL5 278 Mod_spectrum +200 661CH PCL5 279 Mod_spectrum +250 661CH PCL5 280 Mod_spectrum +400 661CH PCL5 281 Mod_spectrum +600 661CH PCL5 282 Mod_spectrum +800 661CH PCL5 283 Mod_spectrum –800 661CH PCL15 284 Mod_spectrum –600 661CH PCL15 285 Mod_spectrum –400 661CH PCL15 286 Mod_spectrum –250 661CH PCL15 287 Mod_spectrum –200 661CH PCL15 288 Mod_spectrum +200 661CH PCL15 289 Mod_spectrum +250 661CH PCL15 290 Mod_spectrum +400 661CH PCL15 291 Mod_spectrum +600 661CH PCL15 292 Mod_spectrum +800 661CH PCL15 293 Switch_Spectrum –1800 661CH PCL0 294 Switch_Spectrum –1200 661CH PCL0 295 Switch_Spectrum –600 661CH PCL0

CONFIDENTIAL

PCL

Band Send-

No. Item to be inspected Chan-

ing/

Recei

296 Switch_Spectrum –400 661CH PCL0 297 Switch_Spectrum +400 661CH PCL0 298 Switch_Spectrum +600 661CH PCL0 299 Switch_Spectrum +1200 661CH PCL0 300 Switch_Spectrum +1800 661CH PCL0 301 Switch_Spectrum –1800 512CH PCL0 302 Switch_Spectrum –1200 512CH PCL0 303 Switch_Spectrum –600 512CH PCL0 304 Switch_Spectrum –400 512CH PCL0 305 Switch_Spectrum +400 512CH PCL0 306 Switch_Spectrum +600 512CH PCL0 307 Switch_Spectrum +1200 512CH PCL0 308 Switch_Spectrum +1800 512CH PCL0 309 Switch_Spectrum –1800 810CH PCL0 310 Switch_Spectrum –1200 810CH PCL0 311 Switch_Spectrum –600 810CH PCL0 312 Switch_Spectrum –400 810CH PCL0 313 Switch_Spectrum +400 810CH PCL0 314 Switch_Spectrum +600 810CH PCL0 315 Switch_Spectrum +1200 810CH PCL0 316 Switch_Spectrum +1800 810CH PCL0 317 Switch_Spectrum –1800 661CH PCL5 318 Switch_Spectrum –1200 661CH PCL5 319 Switch_Spectrum –600 661CH PCL5 320 Switch_Spectrum –400 661CH PCL5 321 Switch_Spectrum +400 661CH PCL5 322 Switch_Spectrum +600 661CH PCL5 323 Switch_Spectrum +1200 661CH PCL5 324 Switch_Spectrum +1800 661CH PCL5 325 Switch_Spectrum –1800 661CH PCL15 326 Switch_Spectrum –1200 661CH PCL15 327 Switch_Spectrum –600 661CH PCL15 328 Switch_Spectrum –400 661CH PCL15 329 Switch_Spectrum +400 661CH PCL15 330 Switch_Spectrum +600 661CH PCL15 331 Switch_Spectrum +1200 661CH PCL15 332 Switch_Spectrum +1800 661CH PCL15 333 Burst Timing 661CH PCL0 334 Burst Timing 512CH PCL0 335 Burst Timing 810CH PCL0 336 Burst Timing 661CH PCL5 337 Burst Timing 661CH PCL15

Rx 338 Reception sensitivity 661CH PCL0

339 Reception sensitivity 512CH PCL0 340 Reception sensitivity 810CH PCL0 341 Floor sensitivity 2 661CH PCL0 342 Reception level report 661CH PCL0

nel

PCL

Troubleshooting list according to the results of RF performance check.

Test item Check parts for GSM Check parts for DCS Check parts for PCS

Tx Sending output IC831, IC881, FL811, FL801 IC831, IC881, FL816, FL801 IC831, IC881, FL816, FL801

Frequency deviation TCX951 TCX951 TCX951 Phase error VCO971, IC901, VCO851 VCO971, IC901, VCO851 VCO971, IC901, VCO851 Mod_spectrum VCO971, IC901, VCO851 VCO971, IC901, VCO851 VCO971, IC901, VCO851 Switch_spectrum VCO971, IC901, VCO851 VCO971, IC901, VCO851 VCO971, IC901, VCO851 Burst Timing IC881 IC881 IC881

Rx Reception sensitivity FL801, FL901 FL801, FL902 FL801, FL903

Floor sensitivity FL801, FL901 FL801, FL902 FL801, FL903 Reception level report FL801, FL901 FL801, FL902 FL801, FL903

2 – 16

CONFIDENTIAL

3.3.5 Software download

1) Overview This document describes the specification of the Flash-downloading tool (Upgrading Tool) used for the user service.

2) Purpose of this document The aim of this document is to provide a sufficient description of the GX20 Upgrading Tool for readers.

3) Scope This document covers the description of the Flash-downloading tool specification for the user service.

4) Operating environment

Operating environment for the Upgrading Tool

OS: Windows 98, 98SE, 2000 or XP Downloadable file: Only Motorola format is available for downloading. Communication mode: Asynchronous mode Data length: 8 bit Parity bit: None Stop bit length: 1 bit

Operating environment for the loading loader

Phone: GX20 Communication mode: Asynchronous mode Data length: 8 bit Parity bit: None Stop bit length: 1 bit

1) Description of the screens.

1) Activation You can start the application either from the short cut on your desktop or Start menu.

2) The Upgrading Tool (on the PC)

GX20

Check here if you wish to use "Communication Box Ver. 2G". Note 1)

Check here if you wish to initialize the file system.

Available when "Communication Box Ver. 2G" is set. Note 2)

COM port list box

Click this button to display the dialog for selecting a file to download.

Figure 38

2 – 17

GX20

Note 1) If using “Communication Box Ver. 2G”, the only the phone connected to No.1 cable is controlled on your PC.

Note2) The time displayed in this dialog indicates a margin of processing time taken for data to be downloaded to the phones that are connected to cable No.2 to No.10 of the “Communication Box Ver. 2G”. If an error occurs, increase this margin time. See the section 3.3.5.2 (3) “Using the Communication Box Ver. 2G” on page 2-20 for details.

[Caution!]

• If you wish to download using “Communication Box Ver. 2G”, power on from No.10 to No.1 after “Sending Sync Byte…/Press Power Button” message has appeared.

• Use a fully charged battery and remove the check from “Communication Box” if using a Data cable for the downloading operation.

• Start downloading after the phone has been properly turned off in order to clear the Backup RAM.

• If you select “FileSystem Initialize” for the download, user’s data stored in the phone will be deleted. Care should be taken for this performance.

3) The loading loader (on the phone side) The progress indication of the operation and error status are displayed on the phone. The following are example screens.

CONFIDENTIAL

1. Initial screen

Flash Loader 3.10

Appears if the loading loader is successfully expanded. (the version of the loading loader software is displayed). The mobile light will be turned on to red until the write operation is complete.

Flash Loader 3.10

COMPLETE!

2. Deleting the Flash 3. Writing the data

Flash Loader 3.10

P ERASING ... ##########

Indicates a program data. In case of the data area, "D ERASEING" is displayed.

Indicates that the Flash is being erased. "#" disappears as the erasing operation proceeded.

5. SUM value is indicated Note 1)

Flash Loader 3.10

SUMCHECK END

WRITING ...

Indicates that data is being written into the phone. During this operation, the mobile light stays purple.

6. Error screen Note 2)4. Writing data is completed

Flash Loader 3.10

ERS_ERROR!

SUM = XXXX h

ADR = 1000000 STR = A0

Indicates that the program data is successfully loaded and the mobile light will blink green light.

Note 1) You can check if the loaded program data is correct or not by comparing the SUM values displayed on the PC side and the phone as shown on the screen 5. If both SUM values are the same, it means the correct program data has been loaded. Please check the SUM value quickly since this display will disappear very soon if using the Data cable.

Note 2) The screen 6 shows an example of one error occurred while in Flash erasing operation. “ADR” and “STR” only appear for Flash-oriented errors. Other errors are described latter in section 3. (see pages 2-22, 2-23)

SUM value is displayed few seconds after the program data has been successfully loaded. The value is displayed at "XXXX".

This screen appears when an error occurs and the mobile light will blink yellow. ADR: Address where the error occurs. STR: Flash Status information.

2 – 18

CONFIDENTIAL

2) Operational specification

1) Selecting a file.

Press “Select File” button to open the dialog. Select a file you wish to download. You can only select the file with Motorola format.

Figure 39 The dialog screen to select the file

2) Selecting a COM Port.

Select the COM Port that connects the PC and the phone (or “Communication Box Ver. 2G”) from COM Port box on the screen. You can choose from COM1 to 9.

GX20

Figure 40 COM Port selecting screen

2 – 19

GX20

3) Using the Communication Box.

Check the dialog box “Use Communication Box Ver. 2G” displayed on your PC if using “Communication Box Ver. 2G”.

You can specify the wait time from 0 to 999 seconds since the access latency differs depending on the phone if using “Communication Box Ver. 2G”. (Default value is set to 100 seconds).

CONFIDENTIAL

Serial connection port

Power On/Off button. Set to OFF for the initial status.

Cable 1.

Figure 41 Image of Communication Box Ver. 2G

[Caution] Cable 1 is used for the handshaking between the PC and the phone. Make sure that cable is properly connected to the phone while the handshaking if using “Communication Box Ver. 2G”. Switch on the power buttons from No.10 to No.1 when “Sending Sync Byte…/Press Power Button” message appears. You may turn on the power switch as necessary.

2 – 20

CONFIDENTIAL

4) Starting the download.

Press [Start Loading Flash] button after you finish selecting the file to download. Downloading operation starts. The message as below appears if no file is selected.

• Select “File System Initialize” if you wish to initialize the file system only. In this case, you can download the program by pressing the

[Start Loading Flash] button without selecting a downloading file.

Figure 42

[Using a Data cable] If using a Data cable for the downloading operation, press Power button of the phone after [Please remove AC charger, when you use PCcableSending Sync Byte…/Press Power Button!] information message has appeared. The loading loader starts being expanded.

[Using “Communication Box Ver. 2G”] If using “Communication Box Ver. 2G”, switch on the power button of the Box from No.10 to No.1 after [Please remove AC charger, when you use PCcableSending Sync Byte…/Press Power Button!] information message has appeared. The loading loader starts expanding.

[Caution] If using a Data cable, [Keep Power Button! ] message will appear after the power button of the phone is pressed. Keep pressing the button until this message disappears. The above-mentioned message disappears and the following screen will appear after the expansion of the loading loader has been completed.

GX20

Flash Loader 3.00

Figure 43

5) Completing the download

If the program data is successfully downloaded, [Download completed] message appears and then, the SUM value of the data loaded into the Flash is displayed. If the operation is not properly completed, the error message will appear. Refer to pages 2-22, 2-23 [Table of Error messages] for details of error messages.

[Caution!] After the downloading operation is ended, SUM value is displayed on the phone. You can check if the program data is successfully downloaded or not by comparing the SUM values displayed on the phone and the PC. Please check the SUM value quickly since this display will disappear very soon if using the Data cable (it will disappear in about 7 seconds). If both values are not the same, the program data may not be successfully downloaded. Please start downloading all over again.

2 – 21

GX20

6) Matters to be attended to the downloading operation.

[If using a Data cable:]

1. Make sure to remove the AC charger from the Data cable. Otherwise it may cause the charging application to be activated and downloading operation cannot be operated properly.

2. Use a fully charged battery for the downloading operation.

3. If the battery is not charged enough, the downloading operation may not be completed. Make sure to charge the battery fully before downloading.

4. If the downloading operation is cancelled or interrupted due to an error condition, remove the battery once and then, start over the operation.

5. Start downloading after the phone has been properly turned off in order to clear the back-up RAM.

6. If you select “FileSystem Initialize” for the download, user’s data stored in the phone will be deleted. Care should be taken for this performance.

7. If the power saving mode is set on your PC, the download may fail depending on PCs. Please cancel the power saving mode when performing the download.

[If using “Communication Box Ver. 2G”:]

1. Switch on the Power button of the Box starting from No.10 to No.1 when “Sending Sync Byte…/Press Power Button” message appears. If the button 1 is switched on first, it results in failure of the downloading operation on phhones that are connected to the cable 2 to 10.

CONFIDENTIAL

2. The time to be taken for erasing the program data differs depending on the phones. If failed for the erasing operation at 100 seconds wait time, increase “Wait Time”. However it takes more time to finish downloading.

3. Start downloading after turning off the phone in order to clear the back-up RAM.

4. If you select “FileSystem Initialize” for the download, user’s data stored in the phone will be deleted. Care should be taken for this performance.

5. If the power saving mode is set on your PC, the download may fail depending on PCs. Please cancel the power saving mode when performing the download.

3) Table of Error messages

1) Error messages for the Upgrading Tool (on PC side)

No. Displayed Message Description

1 Unable to open file File open error

2 Unable to receive Sync Byte Communication error

3 Cannot communicate to port Serial setting error

4 RAM Loader not responding to commands Communication error

5 RAM Loader cannot understand commands Communication error

6 Unable to program flash Flash operation error

7 Unable to reconfigure port Serial setting error

8 Select File Error Wrong file is selected.

Failed to open MOT file to download.

Could not be synchronized with Boot ROM

Wrong serial port was selected.

No response from the downloaded loading loader.

Received undefined response from the loading loader.

Failed to write or erase the Flash ROM.

Selected COM Port is still in use.

The file you select is not applicable for the upgrading. Choose another file to download.

2 – 22

CONFIDENTIAL

2) Table of the Loading loader error messags (on the phone side)

No. Display Message Description

1 COMPLETE! Indicates that the downloading operation is completed. 2 ERASE READY Appears while waiting for the erase operation to be ready. 3 WRITE READY Appears while waiting for the program data to be ready. 4 BRT CHANGING Appears while changing the baud rate. 5 P ERASING ... Appears while erasing the program data. 6 WRITING ... Appears while loading the program data. 7 FLASH ERS OK! Indicates that the program data is successfully erased. 8 SUMCHECK ... Appears while calculating the written data of SUM value. 9 SUMCHECK END Indicates that the calculation of the SUM value of the written data is completed. 10 SUM = XXXX h Indicates the SUM value of the written data. 11 SUM ERROR! Serial communication error (Check SUM error). 12 PARITYERR! Serial communication error (Parity bit error). 13 FRAMINGERR! Serial communication error (Framing error). 14 OVERFLOW! Serial communication error (Buffer overflow error). 15 ERS_REC_ERROR Serial communication error (Failed to receive the erase record). 16 BRT_REC_ERROR Serial communication error (Failed to receive the change record of baud rate). 17 DAT_REC_ERROR Serial communication error (Failed to receive the data record). 18 ADR_REC_ERROR Serial communication error (Failed to receive the address record). 19 END_REC_ERROR Serial communication error (Failed to receive the end record). 20 HDR_ERROR! Serial communication error (Received the undefined record). 21 ODD_ERROR! Serial communication error (Odd error). 22 SEQ_ERROR! Indicates that the Flash operation was failed (Sequence error). 23 VPP ERROR! Indicates that the Flash operation was failed (VppLow error). 24 PRT_ERROR! Indicates that the Flash operation was failed (Protect error). 25 ERS_ERROR! Indicates that the Flash operation was failed (Erase error). 26 WRT ERROR! Indicates that the Flash operation was failed (Write error). 27 ERASE CHK ERR Indicates that an error occurred while verifying the erase. 28 WRITE CHK ERR Indicates that error occurred while writing data. 29 ADR = XXXXXXXX Indicates the Flash address where the error occurred. 30 STR =XX Indicates the Flash status when the error occurred.

GX20

• From No.1 to No.10 are information messages. These messages are displayed in the normal operation. From No.11 to 33 are error messages. Regarding to the messages from No.22 to 28, they indicate the errors that have occurred on Flash. Address (No.29) and status information (No.30) are also displayed at the same time.

2 – 23

GX20

4) Installation / Un-installation

1) Installation

Execute “setup.exe” and activate the setup wizard.

CONFIDENTIAL

Select a folder you wish to install to.

Figure 44

Figure 45

2 – 24

The confirmation screen appears. Select [Next].

CONFIDENTIAL

GX20

The Up Grading Tool is being installed.

Figure 46

Figure 47

2 – 25

GX20

The installation is complete.

CONFIDENTIAL

Figure 48

The icon of the Up Grading Tool as shown below is configured on your desktop. You can also activate this application selecting “The GX20 Up Ggrading Tool” from Start menu.

Figure 49 The icon of theUp Grading Tool icon

2) Un-installation

Execute “setup.exe” and activate the setup wizard. Running “setup.exe” on the PC un-installs the preloaded program.

Check here

Figure 50

2 – 26

The preloaded program is being un-installed.

CONFIDENTIAL

GX20

The un-installation is complete.

Figure 51

Figure 52

2 – 27

GX20

CONFIDENTIAL

3.3.6 Matters to be attended to the Installation /Uninstallation

• If installing the Up Ggrading Tool to the PC that the tool has been already installed, uninstall the preloaded tool first then start installing the program again.

• If you are performing the Up Ggrading Tool on Windows 98, 98SE and Me operation system, a message may appear asking you to restart up the operation system during the installation. In this case, please restart your operation system according to the instruction. Even if such massages do not appear, restart your operation system after the installation has been completed.

Note) If you are using Windows 98 and trying to activate the Up Grading Tool without restarting the operation system, the following message may appear. In this case, you need to restart your operation system for the proper operation of the Up Grading Tool.

Figure 53

Attachment 3 Reset Tool for the phone code

<Description> Reset the phone code to “0000”.

1) Connect the Reset tool to the cable.

2) Execute “PWDinit.exe”.

3) Press the power key to access the idle mode. (“InsertSIM” is displayed.)

4) Press “Set to Default”.

5) Enter “2968” and press “OK”.

Figure 54

Figure 55

2 – 28

CONFIDENTIAL

6) Press “Reset”. The following confirmation message appears.

Figure 56

7) Press “Yes” .

Figure 57

8) When initialization is complete, the dialog box below appears. Press “OK” to turn off the phone.

GX20

Figure 58

2 – 29

GX20

[2] SHARP RF Test tool manual

1. Requirements

• PC with COM port

• Mouse

• GX20 Data Cable

• PWB repair jig

CONFIDENTIAL

Figure 59 PWB repair jig

2. Setup

1. Set PWB and make connections as shown in Figures 62 and 63. Make sure connections are correct at the points shown in Figure 64.

2. Connect PC and GX20 with Data Cable.

3. Turn on the phone.

4. Start RF Test Tool.

5. Select a COM port to which Data Cable is connected.

6. Press the “Initialize & Read Data” Button.

7. Figure 61 appears.

8. Click OK to proceed.

Figure 60

Figure 61

2 – 30

PWB

CONFIDENTIAL

GX20

Setting Pin

Hook

Figure 62 PWB installation

Black

Red

Setting Pin

Hook

Setting Pin

Data Cable

Figure 63 Connections

2 – 31

GX20

CONFIDENTIAL

Points

Figure 64 Contact points

Push

Figure 65 Turning power on

2 – 32

CONFIDENTIAL

3. Tests

3.1. 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.

3.2. TX test

Test burst transmission.

TX frequency of selected channels Current PCL (Read only)

GX20

Input box

Channel bar

Figure 66

PCL bar

Data patterns

Figure 67

[Procedure]

1. Select a band and channel. (see 3.1)

2. Select PCL (Power Control Level) using PCL bar.

3. Select 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 – 33

GX20

GX20 TX power Table (Target power during calibration, supply voltage: 3.7[V])

GSM DCS/PCS

PCL TX Power [dBm] PCL TX Power [dBm]

5 31.6 0 28.6 6 30.0 1 27.0 7 29.0 2 26.0 8 27.0 3 24.0 9 25.0 4 22.0 10 23.0 5 20.0 11 21.0 6 18.0 12 19.0 7 16.0 13 17.0 8 14.0 14 15.0 9 12.0 15 13.0 10 10.0 16 11.0 11 8.0 17 9.0 12 6.0 18 7.0 13 4.0 19 5.0 14 2.0

CONFIDENTIAL

3.3. RX test

The phone receives burst signals in this test.

15 0.0

RX frequency of selected channels

Current RX Gain (Read only)

RX Gain Setting bar

RX ON/OFF button

This indicator appears while

Sniff ON/OFF

Figure 68

[Procedure]

1. Select a channel and band. (see 3.1)

2. Select RX Gain using RX Gain Setting bar.

3. Choose Sniff ON or OFF.

4. Click RX ON to start receiving 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 end receiving burst signals.

* In this test, the reception timing cannot be synchronized with burst signals from Signal Generator or GSM tester.

* The standard RX Gain Setting is:

(Input power at the antenna connector of the phone) + (RX Gain) = –16 dBm Excessive Input power or RX Gain may cause damage to the phone.

receiving burst signals.

2 – 34

CONFIDENTIAL

3.4. RSSI Measure

The phone notifies you of input power value at the antenna connector.

GX20

Estimated Power Input box (Integer only)

Measure button

Figure 69

[Procedure]

1. Connect the phone and GSM tester (or Signal Generator) with RF cable.

2. Select a band and channel. (see 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 two:

1. Continuous sine wave (without modulation) with the frequency as follows: (Frequency of the measured channel) + 67.708kHz. (Ex. 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 phone is properly calibrated, the error between “Estimated Power” and “Measured Power” is less than 2dB.

Measured power box

4. Termination

Turn off the phone to ensure proper operations.

5. Trouble imfomation

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 – 35

GX20

CONFIDENTIAL

[3] Adjustment procedures after replacement of the parts

Be sure to make adjustments to the parts as shown in the table below.

1. Adjustment to camera temperature

IC105

IC307

Camera FPC a’ssy

Main display

External display

1. Adjustment procedures of camera temperature

1. Place a thermometer near the unit to be adjusted. Make sure the room temperature is over 0°C.

2. Attach the battery pack and then connect the Data cable.

3. Access the normal mode by holding down the “End/Power” key.

4. Send the [AT+XDIAG] command to receive the response [DIAGREADY].

5. Send the [PWRFON] command to receive the response [OK].

6. Send the [PWRDOWN] command to power off.

7. Hold down the "End/Power" key to display "****".

8. Press the "3" key to display "H/W CHECK *GX20*". Then the test mode is started.

9. Access the TEMP ADJ mode by pressing the “ ” key, and push the “1” (1. CAM TEMP) key.

10.Temperature detected by the sensor is displayed after “Temp:”. Compare the displayed value to the room temperature.

Enter the difference as a corrected value with the “ ” key if the displayed value is higher, and use the “ ” key if it is lower. The corrected value is displayed after “Correct:”.

11.Press the “#” key. The corrected value is registed.

12.Press the “0” key to access the initial screen of the function test mode.

13.Press the "End/Power" key to power off.

14.Connect the Data cable and then hold down the "End/Power" key to display "****".

15.Press the "2" key to display "Function Mode *GX20*".

16.Send the [PWRFOFF] command to receive the response [OK].

17.Send the [PWRDOWN] command to power off.

18.Hold down the "End/Power " key to check for the startup in the normal mode.

19.Hold down the "End/Power" key to power off.

2. Adjustment to battery temperature

3. Main display flicker adjustment

4. External display contrast adjustment

5. White defect correction

2. Adjustment procedures of battery temperature

1. Perform steps 1 – 8 of “Camera temperature adjustment procedure”.

2. Access the TEMP ADJ mode by pressing the “ ” key, and push the “2” (2.BAT TEMP) key.

3. Perform steps 10 – 19 of “Camera temperature adjustment procedure”.

2 – 36

CONFIDENTIAL

)

GX20

3. Main display flicker adjustment procedure

1. Attach the battery pack.

2. Access the manual testmode.

3. Access the manual testmodeF81 (LCD Setting) by pressing the “8”, “1” and “Right Soft” keys in this order.

4. Press the “2” (2. VCOM Adjust) key.

5. Adjust the flickers on the screen to the minimum by pressing the “ ” and the “ ” keys. Make sure visually they are minimized at a distance of about 20 cm from the inverter fluorescent lamp. (Fine adjustments to the DC voltage between display electrodes)

Enlargement (Add a black line at every one line)

radationpatterns with a black line between each line of thepatterns(monochromepattern

6. Press the “Centre” key twice. The corrected value is registered.

7. Press the “End/Power” key to exit this mode.

Figure 70

Current set value

4. External display contrast adjustment

1. Attach the battery pack and then connect the Data cable.

2. Hold down the "End/Power" key for startup in the normal mode.

3. Send the [AT+XDIAG] command to receive the response [DIAGREADY].

4. Send the [PWRFON] command to receive the response [OK].

5. Send the [PWRDOWN] command to power off.

6. Hold down the "End/Power" key to display "****".

7. Press the "3" key to display "H/W CHECK *GX20*" and then to access the test mode.

8. Press the "8" key to show the following pattern on the external display.

Current set value

Den: 075

8 gradation pattern (Monochrome pattern)

Figure 71

9. Use “ “ or “ “ key to adjust the gradation pattern by comparing it with the other one already adjusted at the plant.

10.Press the “Centre” key to show [Save OK.] on the external display. Then the adjusted value is entered.

11.Press the "0 key to access the initial screen of the function test mode.

12.Press the "End/Power" key to power off.

13.Connect the Data cable and then hold down the "End/Power" key to display "****".

14.Press the "2" key to display "Function Mode *GX20*".

15.Send the [PWRFOFF] command to receive the response [OK].

16.Send the [PWRDOWN] command to power off.

17.Hold down the "End/Power" key to check for startup in the normal mode.

18.Hold down the "End/Power" key to power off.

2 – 37

GX20

CONFIDENTIAL

5. Procedures of white defect correction

1. Attach the battery pack and then connect the Data cable.

2. Access the normal mode by holding down the “End/Power” key.

3. Send the [AT+XDIAG] command to receive the response [DIAGREADY].

4. "Function Mode *GX20*"is shown on the display.

5. Cover the camera front to block off light completely.

6. Transmit the [WHC00840120000000] command.

7. Response will be received if the transmission is completed after 20 to 30 seconds. Be sure to continue to block off light during this process.

• In case of [LDDEVPRMOK]: aaaabbb will be received. aaaa: the number of white defects bbb: the maximum level of dark current

• In case of [LDDEVPRMNG]: 000000 will be received. This indicates light was not blocked completely. Go back to step 6.

8. Send the [WH] command.

9. After receiving th response [OK], send the [POWDOWN] command.

10.Power off and then remove the Data cable.

* White defect correction

White defects indicate pixel defects in the image detected by the light sensor. These appear as white spots even when light is completely blocked off (even on a black background). White defect correction solves this problem.

2 – 38

[4] Test points

TP106

TP107

TP109

TP110

TP111

TP138

TP141

TP167

TP168

TP171

TP176

TP177

TP202

TP203

TP205

TP206

TP209

TP404

TP211

TP212

TP213

TP214

TP215

TP216

TP217

TP218

TP410

TP413

TP416

TP418

TP419

TP420

TP421

TP422

TP424

TP425

TP426

TP428

TP429

TP430

TP175

TP207

TP208

TP405

TP406

TP407

TP411

TP414

TP415

TP412

MAIN PWB-A (REAR SIDE)

CONFIDENTIAL

GX20

Figure 72 TEST POINT

TP No. Signal name TP No. Signal name TP No. Signal name

TP106 JAKMIC TP207 VCORE (1.8V) TP412 Power supply for camera (+13V) TP107 JAKEAR TP208 VANA (2.45V) TP413 Power supply for camera (-7V) TP109 CONT2 TP209 VMEM( 2.8V) TP414 13MHzCLK TP110 SP1 TP211 VCCD (2.5V) TP415 CAMCLK TP111 SP2 TP212 VEXT_CN (2.5V) TP416 Terminal for LCDC adhesion TP138 Terminal for STACK MEMORY

adhesion check 1

TP141 Terminal for STACK MEMORY

adhesion check 2

TP213 VINT (3V)

check 1

TP214 VAMP (3V) TP418 Terminal for LCDC adhesion TP215 VT (2.715V) TP216 VIR (2.8V) TP419 VOUT (External display)

check 2

TP167 RECIVER_OUTP TP217 POWONKEY TP420 CS TP168 RECIVER_OUTN TP218 VLCD (1.8V) TP421 SCLK TP171 AUXADC6 TP404 /LCD_RESET TP422 SI TP175 AUXADC6 TP405 VPLUS2 TP424 DCLK TP176 VPP TP406 LEDR TP425 HSYNC TP177 CINT TP407 LEDG TP426 VSYNC TP202 3V TP410 Terminal for APPLICATION TP203 VBACK (3V) TP429 Back light (LED-)

POWER adhesion check 1

TP205 VRTC (1.8V) TP411 Terminal for APPLICATION TP206 VCAM (3.1V)

POWER adhesion check 2

2 – 39

TP428 Back light (LED+)

TP430 VDD2

GX20

KEY PWB-B (FRONT SIDE)

CONFIDENTIAL

TP344

TP308

TP323

TP322

Figure 73 TEST POINT

TP No. Signal name

TP308 VEXT_CN TP344 DGND

2 – 40

KEY PWB-B (REAR SIDE)

TP321

TP348

TP307

TP306

TPB334

TP305

TP328

TP330

TP347

TP329

TPB332

CONFIDENTIAL

TPB336

TPB331

TPB333

TPB335

TP319

TP317

TP309

TP315

TP311

TP324

TP320

GX20

TP313

TP301

TP345

TP346

TP314

Figure 74 TEST POINT

TP No. Signal name TP No. Signal name

TP301 VSIM (2.85V) TP328 KEYPADCOL [1] TP305 VVIB TP329 KEYPADCOL [2] TP306 DGND TP330 KEYPADROW [0] TP307 VVIB TP345 KEY_BL_ON TP309 TXD TP346 KEY_BL_ON TP311 ADPDET TP347 JACK_GND TP313 RXD TP348 DGND TP314 RTS TPB331 BATT_SENSE TP315 CTS TPB332 DGND TP317 VTCXO (2.9V) TPB333 BATT TP319 VRF (2.9V) TPB334 DGND TP320 CHGIN TPB335 BATT TP321 CHGIN TPB336 BATT TP324 MIC

2 – 41

GX20

CONFIDENTIAL

[5] Troubleshooting

1. Power does not turn on.

Connect a battery with voltage of more than 4.0 V. NOTE: If the cause is damage to 4-level memory (IC106), ensure to

upload flash data before operation as initializing user area may prevent detecting the damaged data.

Manual test mode gained?

YES

Can initialization of only user area (File System) be conducted by Flash Loader?

YES

Does the normal mode start? 4-level stack memory (IC106) data damaged.

Is the program rewritable? 4-level stack memory (IC106), and IC104 defective.

YES

After restart, the normal mode gained? Program of 4-level stack memory (IC106) transformed.

4-level stack memory (IC106), and IC104 defective.

YES

(To page 2-43)

4-level stack memory (IC106), and IC104 defective.

2 – 42

CONFIDENTIAL

GX20

(From page 2-42)

More than 3.6 V output at BATT terminal (TPB336)? Battery terminal defective, adhesive foreign matter at contact

Voltage of below 1.6 V applied to SENSE terminal (TPB331)? Battery or battery mounting defective.

Is fuse (FS301) connected? Blowout of fuse (FS301).

More than 3.6 V output at VBAT_S terminal (IC202 4 Pin), VBAT_AP terminal (Between FS401 and FS402), VBAT_BB

YES

battery (CN303) terminal, or bad soldering.

• Relay FPC_A or connector CN201 defective.

• Parts connected to each VBAT line or mounting defective.

terminal (IC202 22 Pin)?

YES

Voltage of below 1.6 V applied to IC102 15 pin BATT_ SENSE terminal (C188 signal side)?

YES

Is 4-level stack memory (IC106) properly mounted? Defective mounting of 4-level stack memory (IC106).

YES

3.0 V output at VMEM (TP209), and 1.8 V output at VCORE (TP207), respectively?

YES

3.0 V output at VINT (TP213)? IC205 or jumper (IC205 5 pin to TP213) defective.

Relay FPC_A or connector CN201 defective.

Power supply IC (IC202) defective.

YES

32.768 kHz properly output (at X102 connected to IC104 28 pin)? Are appearance and mounting of R132, jumper (R132 to

X102 (32 kHz oscillator), R132, jumper (R132 to C149), R147 and C149 defective, or mounting defective. Or IC104 oscillation circuit defective.

C149), R147, C149, X102 and IC104 properly given?

YES

13 MHz square waves properly output at TP414? IC102, IC103, IC403, jumper (IC102 46 pin to IC104 84 pin)

13 MHz triangle waves input to IC104 142pin? IC104 defective.

13 MHz triangle waves output from IC901 36 pin? Parts of IC901 36 pin to IC104 142 pin defective.

2.9 V output at VTCXO (TP317)? Regulator (IC303) and C318 defective.

YES

and L405 defective or mounting defective.

TCXO (TCX951), IC901 and peripheral circuit defective.

2 – 43

GX20

2. Incoming audio cannot be heard.

Phone

CONFIDENTIAL

Signal output at the Back light FPC earpiece contact terminal? Built-in earpiece defective or defective connection between

Signal output at CN402 1 pin and 2 pin? Back light FPC or CN402 defective.

Signal output at TP167/TP168? Defective connection between L103 to CN402 1 pin or L104 to

Signal output at C102? L103 or L104 defective.

Signal output at both ends of C120? Defective parts of L103 to IC102 62 pin and L104 to IC102 61

Voltage of more than 0.5 V applied to C186 (IC102 6 pin side) ?

Voltage of more than 0.5 V applied to JK301 5 pin? Parts of hands free connector JK301 5 pin to IC102 6 pin

YES

TP167 and TP168.

Or defective connection between Back light FPC and CN402.

CN402 2 pin.

pin.

IC102 or PWB defective.

defective or connection of Relay FPC-B with CN306 and CN202 defective.

Voltage of more than 0.5 V applied to JK301 3 pin? Hands free connector JK301 defective.

YES

Voltage of more than 0.5 V applied to TP106? Parts of hands free connector JK301 3 pin to TP106 defective

YES

or connection of Relay FPC_B with CN306 and CN202 defective.

Voltage of more than 2.4 V applied to Q101 3 pin? Parts of Q101 3 pin to TP106 defective.

Voltage of 3 V applied to Q101 2 pin? Q101 defective.

YES

IC104 defective.

2 – 44

CONFIDENTIAL

Hands free kit (Headset)

When replacing the hands free kit, output available? Hands free kit defective.

Signal output at JK301 4 pin? JK301 defective or defective connection.

Signal output at IC101 5 pin? Parts of hands free connector JK301 4 pin to IC101 5 pin

Voltage of 3 V applied to IC101 6 pin? 3 V output at IC209 4 pin?

YES

defective or connection of Relay FPC_B with CN306 and CN202 defective.

Jumper (TP214 to IC209 4 pin) defective.

YES

GX20

YES

3 V output at IC209 1 pin?

YES

IC209 defective. IC104 defective.

Voltage of 3 V applied to IC101 1 pin? IC104 defective.

YES

Signal output at IC102 63 pin? Parts of IC102 63 pin to IC101 4 pin defective or IC101 defec-

Is the voltage of 0 V applied to IC102 6 pin? IC102 defective or soldering around C186 and R184 defec-

YES

tive.

Hands free connector JK301 or R184 defective.

2 – 45

GX20

Hands free car kit

When replacing the hands free car kit, output available? Hands free car kit defective.

Calling available in the hands free kit mode? Refer to "Hands free kit" in Troubleshooting "Incoming

Incoming/outgoing call available with hands free car kit? Refer to Troubleshooting, "Charging impossible" (see

YES

Does Charge LED light up when connecting hands free car kit?

YES

CONFIDENTIAL

YES

audio cannot be heard" (see page 2-45).

page 2-49).

YES

More than 5 V applied to CN302 8 pin?

Hands free car kit defective, or CN302 defective.

Voltage of 0 V applied to CN302 12 pin when connecting hands free car kit?

YES

Voltage of 3 V applied to TP109 regardless of connction to hands free car kit?

YES

Hands free car kit defective.

Voltage of 0 V applied to CN302 10 pin during a call? Defective parts of CN302 10 pin to IC104 125 pin or IC104

YES

Signal output at CN302 4 pin during a call? Hands free car kit defective.

CN302, L318, R308, V311, jumper (R308 to JK301 6 pin) or JK301 defective.

3. Audio cannot be sent/recorded.

Phone

Voltage of 0.8 to 1.8 V applied to TP324?

YES

Hands free car kit defective. Or defective parts of IC302 12 pin to IC104 20 pin and IC104 defective.

R104 or IC104 defective.

defective.

(To page 2-47)

Voltage of 0.8 to 1.8 V applied to R112 (C129 side)? Parts of C129 to L314 defective.

Voltage of more than 2.4 V applied to Q101 3 pin? Parts of Q101 3 pin to C129 defective.

YES

Q101 defective.

Voltage of 3 V applied to Q101 2 pin?

IC104 defective.

(From page 2-47)

2 – 46

CONFIDENTIAL

GX20

(From page 2-46)

Voltage of approx. 1 V applied to IC102 54 pin?

Voltage of approx. 1 V applied to IC102 64 pin? IC102 defective.

Voltage of more than 2.4 V applied to Q101 3 pin?

YES

(To page 2-46)

Parts of R110, R111, C126 and jumper (IC102 64 pin to R111) defective or soldering defective.

Built-in microphone defective.

Voltage of more than 0.5 V applied to C186 (IC102 6 pin side)?

YES

defective connection between microphone and PWB.

Attach the PC board on the microphone side again or replace the microphone. Then improvement observed?

IC102 defective.

YES

Voltage of more than 0.5 V applied to JK301 5 pin? Parts of hands free connector JK301 5 pin to IC102 6 pin

YES

defective or defective connection between Relay FPC_B and CN306, CN202.

Voltage of more than 0.5 V applied to JK301 3 pin? Hands free connector JK301 defective.

Voltage of more than 0.5 V applied to TP106? Parts of JK301 3 pin to TP106 defective or defective connec-

Voltage of more than 2.4 V applied to Q101 3 pin?

YES

tion between Relay FPC_B and CN306, CN202.

(To page 2-46)

Parts of Q101 3 pin to TP106 defective.

2 – 47

GX20

Hands free kit (Headset)

When replacing the hands free kit, output avilable? Hands free kit defective.

Voltage of 1 to 1.9 V applied to JK301 3 pin?

Voltage of 1 to 1.9 V applied to TP106? Parts of L105 to JK301 3 pin defective.

Voltage of more than 2.4 V applied to Q101 3 pin? Parts of Q101 3 pin to L105 defective.

Voltage of 3 V applied to Q101 2 pin?

CONFIDENTIAL

YES

Q101 defective.

IC104 defective.

Voltage of approx. 1 V applied to IC102 44 pin?

Voltage of approx. 1 V applied to IC102 40 pin? IC102 defective.

Voltage of more than 2.4 V applied to Q101 3 pin?

YES

Parts of R107, R108, C113 and L106 defective or soldering defective.

YES

Voltage of 0 V applied to C186 (IC102 6 pin side)? IC102 defective or soldering around C186 and R184 defec-

JK301 defective or R184 defective.

YES

tive.

2 – 48

CONFIDENTIAL

Hands free car kit

When replacing the hands free car kit, output available? Hands free car kit defective.

Calling available in the hands free kit mode? Refer to "Hands free kit" in Troubleshooting "Audio cannot be

YES

Incoming/outgoing call available with hands free car kit? Refer to "Hands Free Car Kit" in Troubleshooting "Incoming

YES

Voltage of 0 V applied to CN302 10pin during a call? Parts of CN302 10 pin to IC104 125 pin defective or IC104

YES

Signal output at CN302 11 pin during a call? Hands free car kit defective.

YES

CN302, L309, V319, C328, jumper (R309 to C328), or JK301 defective.

4. Charging impossible.

YES

sent/recorded." (see page 2-48).

audio cannot be heard" (see page 2-46).

defective.

GX20

Start the test mode, using a batterry fully charged with a specified battery charger. Check that the battery voltage is more than 4.15 V.

Does “Red of mobile light (LED405)” turn on/off when press “1” key by manual testmode F45 (LED setting)?

YES

Is the temperature shown in the procedure "2.BAT TEMP" of manual testmode F42 (Temp Adjust) correct? (Measuring tolerance: ± 5 deg)

YES

Is the battery voltage of 4.15 to 4.25 V shown in the procedure manual testmode F80 (Voltage control)?

YES

Startup in the normal mode, using a battery with the voltage of

3.3 to 3.8 V.

When inserting AC Charger in External Connector, is the voltage of approx. 5.2 V applied to IC202 7 pin?

YES

When inserting AC Charger in External Connector, is the voltage of approx. 5.2 V applied to TP321?

YES

Approx. 15 sec after inserting AC Charger in External Connector, does the voltage of TPB333 and TPB335 increase by more than 0.05 V?

YES

Battery defective or battery cycle deteriorated.

Q402, R403, and mobile light (LED405) defective.

YES

Is the voltage of 3 V applied to Q402 5 pin when charge LED (LED405) is ON?

Defective connection jumper (IC104 186 pin to Q402 5 pin). IC104 Defective.

IC307, R368, CN305, Relay FPC_A, CN201, and IC102 defective.

Defective connection between IC202 5 pin and IC102 4 pin. IC102 and IC202 defective.

Defective connection between CN302 18 pin and IC202 7 pin. CN302, CN306, FL303, FL304, FL307, Relay FPC_B, and CN202 defective.

Defective connection between CN302 18 pin and IC202 7 pin. CN302, FL303, FL304 and FL307 defective.

Defective connection between IC202 9 pin and Q305 3 pin. R348, Q305, D303, D306, D309 and IC202 defective.

2 – 49

GX20

5. Vibrator does not operate.

CONFIDENTIAL

Vibrator terminals contacting the land? Dirt or foreign matter detedted at vibrator terminals and the

Vibrator deformed. (Remove foreign matter or replace parts.)

land? Check the vibrator during operation.

YES

3 V square waves output between vibrator terminals in synchronization with vibration pattern?

VBAT Voltage applied to IC302 5 pin? Soldering of IC302 defective.

YES

Signals ourput at IC302 1pin in synchronization with vibration pattern?

Signals output from IC103 19pin in synchronization with vibration pattern?

Voltage of approx. 3 V applied to IC103 7 pin? Are appearance and mounting of jumper (IC103 5 pin to VINT

YES YES

YES

Vibrator defective.

IC302 defective.

CN201, Relay FPC_A and CN305 defective.

Jumper (IC103 5 pin to VINT line), C141 and C142 defective.

line), C141 and C142 properly given?

IC103 or the control signal line to IC104 defective.

6. Clock is reset.

More than 2.5 V output at TP202 when a battery is fitted in the set?

YES

More than 2.5 V output at TP203 when a battery is fitted in the set?

YES

More than 1.5 V output at TP203 when a battery is not fitted in the set?

YES

More than 1.2 V output at TP205 when a battery is not fitted in the set?

YES

IC104 defective.

Regulator IC201 defective.

Voltage detecter IC204 or Q201 defective.

Defective mounting of back-up battery holder.

Back-up battery holder properly mounted in Relay FPC_B?

YES

• Insufficient back-up battery capacity.

• Back-up battery defective.

• Back-up battery holder defective.

• Relay FPC_B disconnected or CN202 defective.

Regulator IC203 defective.

2 – 50

CONFIDENTIAL

7. Speaker does not operate.

* When ring tones sound but only key touch tones do not, "Keypad Tones" are set to OFF.

* When the ring tone volume is set to “Silent”, Voice Memo is not played back.

Do speaker terminals contact with the land? Speaker defective.

YES

Resistance of 8 ohms available between the speaker terminals?

YES

Signal output at the speaker land on the Relay FPC_A? Speaker defective.

Signal output at TP110/TP111? R172, R173 and CN201 defective or Relay FPC_A break-

YES

VBAT_AP Voltage applied to IC103 15pin?

VBAT_AP voltage applied to Relay FPC_A of R182? Relay FPC_A and CN305 defective.

YES

Does the speaker function after replacing R182? R182 defective.

YES

Speaker defective.

ing defective.

GX20

Voltage of approx. 3 V applied to IC103 7 pin? Jumper (IC103 5 pin to VINT line) defective.

YES

Signal output at IC103 12 pin? R122, R123 or IC103 defective.

YES

IC103 defective or control signal line to IC104 defective.

2 – 51

GX20

8. Movie, Voice Memo cannot be played back.

Speaker

CONFIDENTIAL

Key pad tones and incoming-call ring tones normally ? Refer to Troubleshooting, "Speaker does not operate." (see

YES

When normally starting playback on the playback screen, is the capacity bar changed?

YES

Ringer Volume set to "Silent"? Cancel "Silent". Then the tones normally output?

NO NO

Signal output at IC102 63 pin? Parts of IC102 63 pin to IC103 14, 13 pin defective or solder-

YES

page 2-51).

IC104 or IC106 defective.

Nondefective.

YES

ing defective.

IC102 defective.

Hands free kit (Headset)

When replacing the hands free kit, output available? Hands free kit defective.

When normally starting playback on the playback screen, is the capacity bar changed?

YES

IC104 or IC106 defective.

YES

Ringer Volume set to "Silent"? Cancel "Silent". Then the tones normally output?

NO NO

YES

Nondefective.

YES

Refer to "Hands free kit" in Troubleshooting "Incoming audio cannot be heard" (see page 2-45).

2 – 52

9. Back light does not turn on.

CONFIDENTIAL

GX20

Do the keypad tones and ring tone sound from the speaker? Jumper (TPB333 to CN305 36, 37 pin) or Relay FPC_A,

YES

Voltage of VBAT_AP applied to FS401? Jumper (CN201 2 pin to FS401) defective or defective mount-

YES

Voltage of VBAT_AP applied to IC404 6 pin? Apparance, mounting and continuity properly given to FS401

YES

CN305, CN201 defective.

ing.

Defective mounting or blowout of FS401.

(Fuse)?

YES

C465 and C466 defective.

Only external display back light.

Which display does not light up? Main or external?

Only main display back light or both displays' back lights.

Is the main display back light set to ON? ON Setting by the following menu.

YES

(To page 2-54)

Settings → Phone settings → Main display → Back light

Does the back light turn on?

YES

Nondefective.

When the external display back light does not light up.

(To page 2-54)

Are appearance and mounting of CN402 properly given? CN402 defective.

YES

Dirt and foreign matter detected at the back light FPC terminal? Back light FPC properly inserted in CN402?

YES

Back light FPC defective or CN402 defective.

Clean the back light FPC and insert it again. Then does it light up?

YES

Nondefective.

Voltage of 13 to 24 V applied between TP428 to TP429? Back light FPC defective.

YES

IC104 or Jumper (IC104 42 pin to IC404 4 pin) defective and defective mounting.

Does the back light slightly light up as the auxiliary light? Is the pulse shape sent to IC404 4 pin? (Don’t hold to Low?)

YES

IC404, L410, L411 and D413 defective.

Voltage of 3 V applied to Q404 gate (G) terminal? IC104 defective.

YES

Voltage of less than 10 mV applied to Q404 drain (D) (R453 side) terminal?

YES

R453, R437 and IC404 defective.

2 – 53

Q404 defective. (0.95 mV at drain terminal)

GX20

CONFIDENTIAL

(From page 2-53)

Is the external display back light set to ON? ON Setting by the following menu.

Voltage of 3 V applied to Q403 gate (G) terminal? Defective connection between IC104 112 pin and Q403 gate

LED401, LED402 or Q403 defective.

YES

Settings → Phone settings → External display → Back light

Does the back light turn on?

YES

Nondefective.

(G) or IC104 defective.

2 – 54

CONFIDENTIAL

10. "No Service" display and receiving/transmitting do not function.

10.1. "No Service" display and receiving/transmitting do not function in the EGSM band.

[Checkpoints for GSM tester transmission]

Fixed line: During input of –70 dBm.

GX20

After replacing the main PWB unit with normal one, transmission with GSM tester possible?

After replacing FPC (flexible printed circuit) with normal

one, transmission with GSM tester possible?

YES

IC104, IC102, CN201, CN202, or PWB defective.

FPC defective.

[Checkpoints in RF Test Tool]

[Transmitting System] Is transmission possible using RF Test Tool?

YES

Voltage applied to VCO971 7 pin? IC202, IC303, Q304, or Q308 defective.

Is VCO971 frequency fixed at 4 times as the EGSM-band transmitting frequency + 80 MHz (or 82 MHz)?

IQ Signal input to IC901 20, 21, 22, and 23 pins? IC104, IC102, or PWB defective.

Voltage applied to VCO851 11 pin? Q304 or Q309 defective.

EGSM-Band Transmitting frequency input to IC831 1 pin? VCO851, IC901, or IC993 defective.

EGSM-Band Transmitting frequency input to FL801 11 pin?

EGSM-Band Transmitting frequency input to J801 1 pin? IC991, IC992, IC993, FL801 or FL817 defective.

YES

IC901, VCO971, FL971, TCX951, or IC304 defective.

FL811, R811, IC831, IC881, or IC992 defective.

J801 defective.

[Receiving System] Fixed line: During input of –70 dBm.

Voltage applied to VCO971 7 pin? IC202, IC303, Q304, or Q308 defective.

YES

Is VCO971 frequency fixed at 4 times as the EGSM band receiving frequency?

YES

EGSM-Band Receiving frequency signal applied to IC901 10 and 11 pins?

EGSM-Band Receiving frequency signal output from FL801 7 pin?

EGSM-Band Receiving frequency signal input to FL801 9 pin?

YES

IC901, VCO971, FL971, TCX951, or IC304 defective.

IC104, IC102, IC901, or PWB defective.

FL901 defective.

IC991, IC992, IC993, or FL801 defective.

J801 or FL817 defective.

2 – 55

GX20

CONFIDENTIAL

10.2. "No Service" display and receiving/transmitting do not function in the DCS/PCS band.

[Checkpoints for GSM tester transmission]

Fixed line: During input of –70 dBm.

After replacing the main PWB unit with normal one, transmission with GSM tester possible?

After replacing FPC (flexible printed circuit) with normal

one, transmission with GSM tester possible?

YES

IC104, IC102, CN201, CN202, or PWB defective.

FPC defective.

[Checkpoints in RF Test Tool]

[Transmitting System] Is transmission possible using RF Test Tool?

YES

Voltage applied to VCO971 7 pin? IC202, IC303, Q304, or Q308 defective.

Is VCO971 frequency fixed at twice as the DCS (PCS)band transmitting frequency + 80 MHz (or 82 MHz)?

IQ Signal input to IC901 20, 21, 22, and 23 pins? IC104, IC102, or PWB defective.

Voltage applied to VCO851 11 pin? Q304 or Q309 defective.

DCS (PCS)-Band Transmitting frequency input to IC831 8

YES

IC901, VCO971, FL971, TCX951, or IC304 defective.

VCO851, IC901, or IC993 defective.

pin?

YES

DCS (PCS)-Band Transmitting frequency input to FL801 1 pin?

YES

DCS (PCS)-Band Transmitting frequency input to J801 1

FL811, R811, IC831, IC881, or IC992 defective.

IC991, IC992, IC993, FL801 or FL817 defective.

pin?

YES

J801 defective.

[Receiving System] Fixed line: During input of –70 dBm.

Voltage applied to VCO971 7 pin? IC202, IC303, Q304, or Q308 defective.

YES

Is VCO971 frequency fixed at twice as the DCS (PCS)band receiving frequency?

YES

DCS (PCS)-Band Receiving frequency signal applied to IC901 7 and 8 (4 and 5) pins?

DCS (PCS)-Band Receiving frequency signal output from FL801 5 (3) pin?

DCS (PCS)-Band Receiving frequency signal input to FL801 9 pin?

YES

IC901, VCO971, FL971, TCX951, or IC304 defective.

IC104, IC102, IC901, or PWB defective.

FL901 (FL903) defective.

IC991, IC992, IC993, or FL801 defective.

J801 or FL817 defective.

2 – 56

11. Main display does not function.

CONFIDENTIAL

GX20

Is main display to CN404 surely inserted? Connector insertion defective.

YES

Clean the connector CN404 contact point and insert the main display again. Does it function?

YES

Does the display function after replacement? Main display defective.

More than 3.6 V output at VBAT_S terminal (IC202 4 pin), VBAT_AP terminal (FS402 to FS401) and VBAT_BB terminal

YES

Connector insertion part soiled.

Refer to Troubleshooting, "Power does not turn on." (see page 2-42).

(IC202 22 pin)?

YES

Voltage of 2.8 V ± 0.1 V applied to TP209? Refer to Troubleshooting, “Power does not turn on.”

YES

More than 3.0 V ± 0.1 V applied to TP213? Refer to Troubleshooting, “Power does not turn on.”

YES

More than 1.8 V ± 0.1 V applied to TP218? Regulator IC207 or jumper (TP218 to IC207 5 pin) defective.

YES

13 MHz output at clock TP414? Refer to Troubleshooting, “Power does not turn on.”

YES

3.0 V ± 0.1 V output at LCD_RST (TP404)? Are appearance and mounting of C417, C473 and R413 prop-

(see page 2-42).

IC104 Defective. Defective mounting of C417, C473 and R413.

erly given?

YES

Voltage of 3.0 V ± 0.1 V applied to CN404 34 pin, 37 pin and 38 pin? Are appearance and mounting of jumper (CN404 34 pin to

CN404, jumper (CN404 34 pin to VINT line), jumper (CN404 37 pin to VINT line), C447 and C453 defective or defective

mounting. VINT line), jumper (CN404 37 pin to VINT line), C447 and C453 properly given?

YES

3.0 V ± 0.1 V output at the liquid crystal reset (CN404 33 pin and C470)?

Display controller (IC403) and C470 defective or defective

mounting. Are appearance and mounting of C470 properly given?

YES

Approx. 62 Hz of signal given to TP426? Proper appearance and mounting given to C469, C471, C472,

Display controller (IC403), C469, C471, C472 and C474

defective or defective mounting. and C474?

YES

Normal voltage applied to the following terminal? TP430: Approx. 10 V Or are appearance and mounting of C450, C451, C452,

Main display, CN404, C450, C451, C452, C454, C455, C457,

C458, C459, C460, C461 and Jumper (CN404 49 pin to 51

pin) defective. C454, C455, C457, C458, C459, C460, C461 and Jumper (CN404 49 pin to 51 pin) properly given?

YES

Main display defective. Or defective mounting of connector CN404.

2 – 57

GX20

12. External display does not function.

CONFIDENTIAL

Does the main display function? Refer to Troubleshooting, “Power does not turn on.”

YES

Is the external display set to ON? ON Setting by the following menu:

(see page 2-42).

Settings → Phone settings → External display → External display On/Off.

YES

Is external display to CN401 surely inserted? Connector insertion defective.

YES

Clean the connector CN401 contact point and insert the external display again. Does it function?

YES

Voltage of 3 V ± 0.1 V applied to CN401 27pin? Proper appearance and mounting given to the jumper (CN401

Connector insertion part soiled.

Jumper (CN401 27 pin to VINT Line) defective or defective mounting.

27pin to VINT)?

YES

3.0 V ± 0.1 V output at LCD_RST (CN401 8 pin)? IC104, C417, C473 and R413 defective or defective mounting.

YES

Proper appearance and mounting given to C426, C427 and C428?

C426, C427, C428 and CN401 defective or external display unit

defective. Electric potential on the both ends of C426, C427and C428 normal? Square waves output? C426: Square waves of approx. 3 V C427: Square waves of approx. 6 V C428: Square waves of approx. 9 V

YES

Voltage of approx 11.8 V output at CN401 29pin (TP419)? Voltage of V0 to V4 output?

C418, C419, C420, C421, C423, CN401 and IC403 defective.

Control signal line to IC403, or external display unit defective. V0 (C418): Approx. 8.56 V V1 (C419): Approx. 7.33 V V2 (C420): Approx. 6.11 V V3 (C421): Approx. 2.42 V V4 (C423): Approx. 1.20 V

YES

* The backlight turns off. After a while, the voltage at TP419 becomes approx. 9 V.

External display unit defective.

2 – 58

13. Camera does not function.

CONFIDENTIAL

GX20

Does the camera flexible unit operate after replacement? Camera unit defective.

YES

Voltage of 2.5 V applied to TP211? Regulator IC208 or jumper (IC208 5 pin to TP211) defective.

YES

Voltage of 2.5 V applied to camera (CA1001) 2 pin? Jumper (CN101 8 pin to TP211) and CN101 defective.

YES

Voltage of 3.0 V applied to TP213? Regulator IC205 or Jumper (IC205 5 pin to TP213) defective.

YES

Voltage of 3.0 V applied to camera (CA1001) 41 pin? Jumper (CN101 12 pin to TP211) and CN101 defective.

YES

Voltage of 3.1 V applied to TP206? Voltage of 3.0 V applied to IC206 1 pin?

YES

Defective disconnection of Camera unit.

IC104 defective.

YES

Regulator IC206 defective.

Voltage of 3.1 V applied to camera (CA1001) 32 pin? Jumper (CN101 3 pin to TP206) and CN101 defective.

YES

Defective disconnection of Camera unit.

IC402 or peripheral circuit defective. IC403 or control signal line defective.

Voltage of 13 V applied to TP412? Is the strobe LED normally operating?

YES

IC402 or peripheral circuit defective.

C184 and C411 defective.

Voltage of 13 V applied to camera (CA1001) 30 pin? Are appearance and mounting of C184 and C411 properly

YES

given?

YES

Jumper (CN101 10 pin to TP412) and CN101 defective. Defective disconnection of Camera unit.

IC402 or peripheral circuit defective. IC403 or control signal line defective.

Voltage of –7 V applied to TP413? Is the strobe LED normally operating?

YES

To the next page

YES

IC402 or peripheral circuit defective.

2 – 59

GX20

From the previous page

YES

Voltage of –7 V applied to camera (CA1001) 31 pin? Are appearance and mounting of C177, C413 and R410 prop-

YES

CONFIDENTIAL

C177, C413 and R410 defective.

erly given?

Jumper (CN101 5 pin to TP413) and CN101 defective. Defective disconnection of Camera unit.

YES

CAM_CLK(TP415) normally output? IC403 defective.

YES

IC104, parts of control signal lines and CN101 defective.

2 – 60

CONFIDENTIAL

14. Strobe light does not light up.

Execute the AT command (STROBOR1, STROBOG1and STROBOB1) and then check which color does not light up among Red, Green and Blue.

Red only

Which color does not light up?

Blue, green or three colors

Voltage of 4.35 V ± 0.75 V output at TP405? Voltage of 4.35 V ± 0.75 V output at CN201 5 pin?

YES

Parts of Relay FPC_A and CN201 defective or soldering defective or CN201 5 pin connection defective.

YES

GX20

Defective connection between Q201 5 pin to TP405.

Voltage of VBAT_AP applied to IC402 4, 46 pin? Q401, L402, D404 and R404 defective, or defective mounting.

Apparance, mounting and continuity properly given to FS402 (Fuse)?

YES

3 V output at IC406 4 pin? IC406 and peripheral circuit defective or defective mounting.

YES

Does the camera normally function? IC402 defective.

Defective control signal line between IC402 to IC403 defective. Or IC402, IC403 defective.

YES

Defective mounting or blowout of FS402.

Does it light up with the AT command (STROBOR2)? Defective connection between CN201 4 pin to IC402 10 pin.

Voltage of VBAT_AP applied to CN201 2 pin? Parts of Relay FPC_A and CN201 defective or soldering

Parts of Relay FPC_A and CN201 defective or soldering defective or CN201 2 pin connection defective.

YES

Or IC402 defective.

defective or CN201 4 pin connection defective.

2 – 61

GX20

15. SIM Card is not recognized.

CONFIDENTIAL

Can SIM card be recognized after replacement? SIM card defective or undesignated SIM card used.

2.8 V Output at Q208 5 pin? IC104 defective.

YES

2.85 V Output at SIM power supply IC202 18 pin? IC202 or Q208 defective.

YES

Do Jumper (IC104 196 pin to CN202 24 pin) and jumper (IC104 177 pin to CN202 25 pin)regularly output pulse

YES

IC104 defective.

waves?

YES

Does TP301 (SIM power source) output 2.85 V? Are appearance and mounting of jumper (CN306 17 pin to

Relay FPC_A or CN306 and CN202 defective. Or jumper (CN306 17 pin to CN301 1 pin) and C303 defective.

CN301 1 pin) and C303 properly given?

YES

Do CN301 3 pin and 6 pin regularly output pulse waves? Are appearance and mounting of jumper (CN306 14 pin to

Relay FPC_A or CN306 and CN202 defective. Or jumper (CN306 14 pin to CN301 6 pin) and R305 defective.

CN301 6 pin) and R305 properly given?

YES

Does SIM reset signal CN301 2 pin output 3.0 V? Are appearance and mounting of R363 properly given?

YES

Are appearance and mounting of SIM card connector (CN301) properly given?

YES

Relay FPC_A or CN306 and CN202 defective. Or R363 and IC104 defective.

SIM card connector (CN301) defective or defective mounting.

IC104 defective.

2 – 62

16. IrDA Communications unavailable

CONFIDENTIAL

GX20

Set the specified distance and angle necessary for IrDA com-

Check in the IRDA test mode.

munications.

2.8 V output at Q207 2 pin? IC104 defective.

YES

Does IrDA power source TP216 output 2.8 V? Q207 defective.

YES

2.8 V output at UN101 6 pin? Soldering of UN101 6 pin defective.

YES

Do transmitting signals (UN101 5 pin) regularly output pulse waves?

YES

R150 defective.

Are appearance and mounting of R150 properly given?

YES

IC104 defective.

Jumper (VINT line to UN101 1 pin) and C170 defective.

3.0 V output at VCC (UN101 1 pin)? Are appearance and mounting of jumper (VINT line to UN101

YES

1 pin) and C170 properly given?

YES

IC104 defective.

Less than 0.2 V applied at SD signal (UN101 3 pin)? IC104 defective.

YES

Do receiving signals (UN101 4 pin) regularly output pulse waves?

YES

Are appearance and mounting of UN101 properly given? Infrared port (UN101) defective or defective mounting.

YES

After replacement of Infrared port (UN101), communications available?

YES

Infrared port (UN101) defective.

IC104 defective.

Infrared port (UN101) defective.

2 – 63

GX20

CONFIDENTIAL

[6] Specification for function test

• Outline

AT commands are used for the function test mode. To enter the general mode, send the command “AT+XDIAG”. Then the machine can accept all key test functions (see “All Key Test and Others” on page 2-76) and further commands from the computer.

KEY Layout

Left Soft

Side

Centre

Side Down

Send End/Power

"Vodafone live!"

123

ABC DEF

456

GHI JKL MNO

789

PQRS TUV WXYZ

• Logic of signals

1)Setting function (AT Command: AT+XDIAG) Asynchronous (Consisting of 115200bps, data length 8, start 1, stop 1, and Parity None).

2)After shifting to Function Test Incoming/Outgoing serial signals should be as follows.

Right Soft

ST D0 D1 D2 D3 D4 D5 D6 D7 PB SP

ST: Start bit D0-D7:Data bit PB: Parity bit SP: Stop bit

After AT+XDIAG

1. Synchro systemAsynchronous (Consisting of data length 8, start 1, stop 1, and Parity None)

• Signal protocol

1. The personal computer requests a response from a mobile machine to establish communications.

2. When keys are pressed, appropriate key codes are transmitted serially.

3. ASCII Characters (only capitals in the case of alphabet) are used for incoming/outgoing serial signals. At the end, return codes (0Dh, 0Ah) are added.

4. Once making a request, the personal computer cannot make another request until the mobile machine returns a certain response. Timeout does not occur.

H L

2 – 64

CONFIDENTIAL

• Basic procedure (when using Hyper terminal)

Flow chart

Connect the phone to PC.

Turn on the phone.

Open Hyper terminal.

Send “AT+XDIAG” with 115200 bps and proper “ASCII setting”.

The phone is in the All key test mode. *

Send further commands to check the phone.

* : Keys are disabled if you enter the All Key test mode by AT command. To avoid this, perform steps on page 2-76.

GX20

2 – 65

GX20

(Details)

1. Connect the phone to the computer via a data cable.

2. Turn on the phone.

3. Open Hyper terminal. (Start → Program → Accessory → Communication → Hyper terminal)

4. Enter the name and choose the desired icon. Then click “OK”.

CONFIDENTIAL

5. Choose the appropriate COM port for network and click “OK”.

Figure 75

Figure 76

2 – 66

CONFIDENTIAL

6. Adjust the port settings and click “OK”.

7. From the file menu, select “Properties” and click the Settings tab.

GX20

Figure 77

Figure 78

2 – 67

GX20

8. Click “ASCII setting” and check “Send line ends with line feeds” and “Echo typed characters locally”.

9. Click “OK” for “ASCII setting” and “Properties” to exit.

CONFIDENTIAL

Figure 79

Figure 80

2 – 68

CONFIDENTIAL

10. Send “AT+XDIAG”

• You will see AATT++XXDDIIAAGG instead of AT+XDIAG as shown below by the Local echo mode, although you input AT+XDIAG.

• After sending you will receive “OK”, and the machine should enter the All key test mode (see “All Key Test and Others” on page 2-76).

GX20

Figure 81

11. You can now send commands. (See example below for the “BATVAL” command.)

Figure 82

2 – 69

GX20

CONFIDENTIAL

1. Basic Operation Test

Fit a battery or a dummy battery in the set. Hold down the “End/Power” key to start up in the general mode. Then enter AT+XDIAG without pressing any key. → Start up in the general function test mode. (3 sec. until startup)

• Back light lights up in the standby mode.

• After startup, “Function Mode * GX20 *” is displayed.

Serial Signal Format for Basic Operation Test

Item

Main display Back light

Red LED STROBOR 0

Green LED STROBOG 0

Blue LED STROBOB 0

External display back light

Key back light LED

Measuring RTC clock

Battery voltage check

RTC Test (Writing)

RTC Test (Reading)

Temperature A/D Adjustment

Temperature check

Incoming Serial Signal Outgoing Serial Signal Command n Response

LED 0

BKLED 0

KLED 0

OUT32K 1

BATVAL None Okn.nn Reading down to the last two digits

RTCWR yymm

RTCRD None RTC yymmddhhmmss Reading time of day

TMPAD 4

TMP n TMPnxx: Temperature

ddhh mmss

Contents Test Method

OFF Main display back light (Brightness 4) ON Main display standby ON

STROBORn Red OFF

STROBOGn Green OFF

STROBOBn Blue OFF

BKLEDn External display back light OFF.

KLEDn OFF

OUT32Kn 32 kHz Output (MON Output)

OK Writing time of day

ADSETOK TMPADH <Readout AD value> TMPADL <Readout AD value> TMPADRDY

NG: Except 0 – 50 ºC

OFF Main display back light (Brightness 4) ON. Main display standby ON.

Red strobe light ON (IC402 control). Red strobe light ON (IC104 control).

Green strobe light ON (IC402 control). Green strobe light ON (IC 103 control).

Blue strobe light ON (IC402 control).

External display back light ON.

32 kHz Stop (Returned to ALT1)

of voltage.

“yymmddhhmmss” to RTC.

“yymmddhhmmss” from RTC.

Adjustment mode ended. *2

2.2 V Measurement started.

0.4 V Measurement started.

Adjustment mode started. Temperature readout. (0 °C min.)

n=1: Camera n=2: Battery

Checking for the main display back light *1 LED0: Display back light OFF LED1: ON (Brightness 4) LED2: Standby ON

Checking for the red strobe light *1 STROBOR0: OFF STROBOR1: Strobe light ON STROBOR2: Charge LED ON

Checking for the green strobe light *1 STROBOG0: OFF STROBOG1: Strobe light ON STROBOG2: Incoming LED ON

Checking for the blue strobe light *1 STROBOB0: OFF STROBOB1: Strobe light ON

Checking for the external display back light *1 BKLED0: OFF BKLED1: LED ON Checking for the key back light *1 KLED0: OFF KLED1: LED ON

Checking frequency of the real time clock. Normal: When OUT32K1 is transmitted, TP109 frequency is 32.768 kHz ±1.11 kHz.

Reading the voltage of the battery power line. BATVAL is transmitted, “OK” and the voltage value are returned.

Writing time to the clock. When RTCWR yymmddhhmmss is transmitted, yy (year), mm (month), mm (hour), and ss (minute) are written. (Writing yy=03 for 2003)

Reading time of the clock. When RTCRD is transmitted, time of day is read out. Refer to the “Adjustment procedures after replacement of parts” on pages 2 – 36 to 2 – 38.

Reading temperature measured by the temperature sensor. When TMP is transmitted, TM and temperature are returned. In case of other than 0 – 50 °C, “NG” is returned.

2 – 70

CONFIDENTIAL

Item

Temperature correction

IrDA Test IRDA 1

IrDA Jig Mode

Vibrator Test VIB 1

Melody Test MELO 2

Memory test (SRAM)

Memory test (PSRAM)

POWER OFF PWRDOWN None OK POWER OFF POWER OFF when PWRDOWN is

Incoming Serial Signal Outgoing Serial Signal

Command n Response

TMPADJ 4nn

3nn

2nn

1nn

2 3 4 5 6

IRDACH 1

2 3 4 5 6

1 0

MEMCHK1 00000

00000 07FF FE5

MEMCHK2 00370

00000 3703 FE5

TMPADJ4nn

TMPADJ3nn

TMPADJ2nn

TMPADJ1nn

OK NG aa NG NODATA

VIBn Asynchronous drive. (Always ON)

MELOn 1 kHz playback from Jack.

MEMCHK1 OK

MEMCHK1 NG 0000 0000dddd

MEMCHK2 OK

MEMCHK2 NG 0037 0000dddd

Contents Test Method

Battery side -nn ºC. (Not cumulative subtraction) Battery side +nn ºC. (Not cumulative addition) Camera side -nn ºC. (Not cumulative subtraction) Camera side +nn ºC. (Not cumulative addition) “nn”: To input difference from the present temperature. Cumulative addition is unavailable for more than one transmission.

1: 2.4 kbps 2: 9.6 kbps 3: 19.2 kbps 4: 38.4 kbps 5: 57.6 kbps 6: 115.2 kbps “OK” if “5A” is detected. If values other than “5A” are detected, they are returned. Data cannot be received.

1: 2.4 kbps 2: 9.6 kbps 3: 19.2 kbps 4: 38.4 kbps 5: 57.6 kbps 6: 115.2 kbps IrDA Jig mode entered. After that commands are rejected.

Stop.

1 kHz playback from SP. Stop.

Addresses (00000000 to 0007FFFE) are checked. For NG, the address “00000000” and the readout data “dddd” are returned. (dddd: Production Process No) Addresses (00370000 to 003 703FE) are checked. For NG, the address “00370000” and the readout data “dddd” are returned. (dddd: Production Process No)

Correcting difference between the ambient temperature and the temperature read by the sensor. Comparing the ambient temperature and the temperature read by the sensor to transmit the corrected value. TMPADJ15: To raise temperature by 5 °C. TMPADJ25: To reduce temperature by 5 °C. * When the same commands are

transmitted several times, corrected vales are not added.

Provide the set in the IrDA jig mode to the other end of the line to perform the transmitting/receiving test. When IRDA is transmitted, the set in the IrDA jig mode receives signals and returns “5A”. Detecting “5A”, the tested set returns “OK” to the personal computer. When values are other than “5A”, “NG aa” is returned. If data cannot be received, NG NODATA is returned. *3 When IRDACH5 is transmitted, using the command to set the IrDA jig mode, the jig mode starts. Reset, or disconnect the power from the set, to release the jig mode. *3

Checking vibrator operation. When VIB1 is transmitted, the vibrator operates continuously; when VIB2 is transmitted, it stops operation. Checking melody playback. *4

Checking read/write of 4Mbit SRAM.

Checking read/write of 16 Mbit. Smartcombo RAM.

transmitted.

GX20

[Note] In the test mode clock setting is reset; after finishing the test, if necessary, reset the current time by selecting [Date&Time] in [Settings] in the normal mode.

2 – 71

GX20

* 1: The LED test is also available in the manual test mode F45.

1. Fit a battery in the set to start the manual test mode.

2. Press the keys “4” → “5” → “Right Soft” to start the manual test mode F45 (LED Setting).

3. Press the following keys for ON/OFF operation.

Key Description Contents

“0” OFF All LEDs OFF “1” Charge LED ON/OFF Charge LED (Also used as the strobe light: RED) “2” Incoming call LED ON/OFF MA2 LED (Also used as the strobe light: GREEN) “3” Key LED ON/OFF Key LED (LED301 to LED316: GREEN) “4” Main display back light ON/OFF Main display back light (Back light FPC: WHITE) *a “5” External display back light ON/OFF External display back light (LED401, 402: WHITE) “6” Changing the strobe light color Changing the strobe LED color (7 colors) *b “7” Changing full output time of strobe light Changing full output time of strobe LED *c “”

“#” Changing flash mode Changing brightness according to flash modes *d “Centre” End Shifting from this mode to the initial screen

* a : Every time a key is pressed, the operation, “Stanb-by → Brightness 1 → 2 → 3 → 4 → OFF”, is repeated. * b : With every pressing of the key, color changes repeatedly in the order of "Blue → Green → Light Blue → Red → Purple

→ Yellow → White" * c : With every pressing of the key, setting time changes repeatedly in the order of "400ms → 800ms → 300ms". * d : With every pressing of the key, flash mode changes repeatedly in the order of "Macro pre-flash → Normal pre-flash →

Spot light → OFF".

4. Press the "Centre" key twice to return to the initial screen of the manual test mode.

5. Press the “End/Power” key to finish operation.

* 2: Only when performing the TMPAD4 command or turning power OFF/ON, A/D adjusted values are reflected in temperature.

* 3: The IrDA test is also available in the manual test mode F13.

Provide a set other than the tested set, which has been confirmed to operate normally. Use this set as the IrDA receiver.

1. Fit a battery in the set to start the manual test mode.

2. Press the keys, “1” → “3” → “Right Soft” to start the manual test mode F13 (IrDA Test).

3. Press the key “Left Soft” (S1: Test Device Mode). * The infinite loop mode for the IrDA data stand-by is started. After finishing the test, remove the battery.

Data are transmitted/received by using the tested set.

1. Fit a battery in the set to start the manual test mode.

2. Press the keys, “1” → “3” → “Right Soft”, to start the manual test mode F13 (IrDA Test).

3. Direct the IrDA window of the tested set to that of the jig set.

4. Press the key “0” (0: Check IrDA) to transmit data automatically.

5. When “OK” is displayed, transmitting/receiving is normally completed. When “NG No Data” is displayed, transmitting/receiving is abnormally ended.

6. Press the "Centre" key twice to return to the initial screen of the manual test mode.

7. Press the “End/Power” key to finish operation.

* 4: The melody playback test is also available in the manual test mode F51.

1. Fit a battery in the set to start the manual test mode.

2. Press the keys, “5” → “1” → “Right Soft”, to start the manual test mode F51 (Melody Test).

3. Press the following keys to switch operations.

Strobe light ON with full output Lighting the strobe LED with full output for the setting time as

CONFIDENTIAL

specified in "7" above.

Key Description Contents

“”

“0” Ring tone playback.

“Right Soft”

Selecting melody tone. Select the next melody by toggling.

Selecting melody tone. Select the preceding melody by toggling.

Playback/Stop.

Key touch tone output. Toggle the key touch tone between ON and OFF.

If the final melody is selected, further selection is unavailable.

If the default melody is selected, further selection is unavailable.

Toggle the selected ring tone between playback and stop. Default: –16 dB 0: Stop 1: Playback

0: Stop 1: Output (DTMF: –16dB)

2 – 72

CONFIDENTIAL

Key Description Contents

“”

“Centre” End Shifting from this mode to the initial screen.

4. Press the key “Centre” to return to the initial screen with the display, “Diag Param Saving”.

5. Press the “End/Power” key to finish operation.

2. Camera Adjustment/Test

Serial Signal Format for Camera Adjustment/Test

Volume control. Turn up the volume by 1 level.

During playback of ring tone: Ring tone is changed. During key touch tone output: Incoming audio volume is changed.

Volume control. Turn down the volume by 1 level.

During playback of ring tone: Ring tone is changed. During key touch tone output: Incoming audio volume is changed.

GX20

Item

Dark current correction and white flaw check.

White flaw correction *1WH(Including ini-

Camera ON/ OFF

Shutter ON/ OFF

Zoom ON/OFF

Incoming Serial Signal Outgoing Serial Signal

Command n Response

WHC (Including initialization)

tialization) CAM 6

SHT 2

ZOOM 2

Contents Test Method

Swwx yyyzaaa bbb

Recommended value: 00840 12000 0000

None OK White flaw correction. Refer to the “Adjustment proce-

5 4

3 2 1 0

1 0

In the case of OK. AAAA, BBB AAAA: Number of white flaws BBB: Max. level In the case of NG. COUNT NG (More than 2000 white flaws) 000000: Insufficient light shielding

CAMn ON (QQVGA Macro pre-flash

SHT n Shutter ON (Full output [White] 400

ZOOM n ZOOM ON (4 x Zoom)

S: Mode (0 to 3) Recommended value: 0 ww: Dividing ratio (00 to 16) Recommended value: 08 x: Average number (0 to 4) Recommended value: 4 yyy: Thresholddetection frequency (000 to 255) Recommended value: 012 z: G Data mode (0 to 3) *1 Recommended value: 0 aaa: Stabilized frame number immediately after startup Recommended value: 000 bbb: Frame rate to be corrected Recommended value: 000

[White])*3 ON (QQVGA full output [White])*2 ON (QQVGA Normal pre-flash [White]) *3 D’ont support ON (VGA) ON (QQVGA) OFF

mS) *4 Shutter ON Shutter OFF

ZOOM ON (2 x Zoom) ZOOM OFF *ZOOM only available for CAM, CAM4, or CAM5

Refer to the “Adjustment procedures after replacement of parts” on pages 2 – 36 to 2 – 38.

dures after replacement of parts” on pages 2 – 36 to 2 – 38.

Checking photography. To switch to the other mode, power off and then send the command again.

Shutter ON/OFF operation. When SHT 1 or 2 is transmitted, the shutter turns ON; when SHT0 (to fix the screen) is transmitted, the shutter is released.

Changing zoom. When ZOOM 1 is transmitted, the double size image is displayed; when ZOOM 2 is transmitted, the original state is returned.

* 1: Be sure to check white flaw (WHC command) before performing white flaw correction (WH command).

* 2: CAM5 Full output of flash is given 0.5 sec after the camera startup and then lights out.

* 3: CAM4,6 Pre-flash 0.5 sec after the camera startup.

* 4: SHT2 After full output, pre-flash also lights out.

2 – 73

GX20

3. Display Test

Serial Signal Format for Main Display Test

CONFIDENTIAL

Item

Checking main display

Gradation display

* For VCOM adjustment (flicker adjustment), refer to "the Adjustment Procedures for Replacement of Parts".

Serial Signal Format for External Display Test

Item

Checking the rear liquid crystal display

* For contrast adjustment of the external display, refer to "the Adjustment procedures after replacement of parts" on pages 2-36 to 2-38.

Incoming Serial Signal Outgoing Serial Signal Command n Response

LCDDISP 3

2 1 0

SGRA 1

Incoming Serial Signal Outgoing Serial Signal Command n Response

SUBLCD 1

LCDDISPn VCOM adjustment pattern.

OK VCOM adjustment pattern dis-

OK RGB display: Vertical tripartition

Contents Test Method

Color gradation. Black display. White display.

played on the main display. White display.

Contents Test Method

(RGB from the left). RGB display: Horizontal tripartition (RGB from the top). * 256-color mode display.

Checking for the main display. LCDDISP3: VCOM adjustment pattern. LCDDISP2: Color gradation display. LCDDISP1: All black display. LCDDISP0: All white display.

8-gradation pattern displayed. Send the signal for flicker adjustment.

Checking RGB display available.

2 – 74

4. Audio Test

Serial Signal Format for Audio Test

CONFIDENTIAL

GX20

Item

Audio system power source and codec loop-back test.

H/S Detection EAR None EARON•EAROFF Detection of hands free insertion. Detecting that the hands free is

Incoming Serial Signal Outgoing Serial Signal

Command n Response

PCMLP 4xx

3xx 2xx 1xx 0

PCMLPnxx (xx: Volume level)

Contents Test Method

Mic to JackEar path check. JackMic to Earpiece check. Jack to Jack path check. Mic to Earpiece path check. Path release (Finished)

Loop-back test for codec IC. Ex.: xx=20 (when the volume level is 5) PCMLP120: Checking that signals from the main unit microphone (TP324) are transmitted to the main unit earpiece (between TP167 and TP168). (In case that the volume level is 20) (Other cases.) PCMLP220: Inputting the signal from headset microphone (TP106) to check that it is output at the headset earpiece (TP107). PCMLP320: Between the hands free microphone and the main unit earpiece. PCMLP420: Between the main unit microphone and the hands free earpiece. PCMLP000: Exiting from the loopback.

connected to the hands free connector. When “EAR” is transmitted: “EARON” is returned if the hands free is connected, and “EAROFF” returned if not connected.

Gain Table during “Mic to Earpiece” and “JackMic to Earpiece” Path Check.

00 0x1F Mute Mute 03 0x12 –18.0 dB VOLUME 1 07 0x10 –15.0 dB VOLUME 2 11 0x0D –10.5 dB VOLUME 3 15 0x08 –3.0 dB VOLUME 4 20 0x03 +4.5 dB VOLUME 5

Gain Table during “Jack to Jack” and “Mic to JackEar” Path Check.

00 0x1F Mute Mute 03 0x0F –13.5 dB VOLUME 1 07 0x0C –9.0 dB VOLUME 2 11 0x09 –4.5 dB VOLUME 3 15 0x06 0 dB VOLUME 4 20 0x03 +4.5 dB VOLUME 5

Table Value of Audio Volume

DAC Output Gain (dB)

Equivalent to Volume

Position for User Setting

Equivalent to Volume

Position for User Setting

2 – 75

GX20

CONFIDENTIAL

5. All Key Test and Others

1) Fit a battery or a dummy battery in the set. Hold down the “End/Power” key to start up in the general mode.

2) Connect the Data cable and send the [AT+XDIAG] command to receive the response [DIAGREADY].

3) Send the [PWRFON] command to receive the response [OK].

4) Send the [PWRDOWN] command to power off.

5) Hold down the “End/Power” key to display “****”.

6) Press the “3” key to display “H/W CHECK *GX20*” and then to access the test mode.

• After the test mode is started, the Data cable can be removed.

• The back light is on for standby.

The [PWRFON] command is executed to enter the special mode; in the case of restart, the test mode is started with the display "****". Startup is unavailable in the normal mode. After ending the test, follow the procedures below.

1) Press the “End/Power” key with the all key test initial screen displayed to power off.

2) Connect the Data cable and hold down the “End/Power” key to display "****".

3) Press the “2” key to display “Function Mode *GX20*”.

4) Send the [PWRFOFF] command to receive the response [OK].

5) Send the [PWRDOWN] command to power off.

6) Hold down the “End/Power” key and check for the startup in the normal mode.

7) Hold down the “End/Power” key to power off.

Key Contents

“Send” Vibrator operation. “VIBRATOR” Displayed. Stop the vibrator with the key “0” to return to the all key test mode initial screen.

“”

””

“Centre” Full-rate codec loop-back. “CODEC INT” displayed.

“0” Return to the all key test initial screen. “1” Display check mode. Display is as shown below.

Playback melody at max. volume (MERODY1 in the normal condition). “MELODY” displayed.

Press the key “ ” to set the volume to the minimum, and the key “#”, to the maximum, respectively. Stop melody with the key “0” to return to the all key test mode initial screen. Playback the ringer at max. volume (Ringer1 in the normal condition). “RINGER” displayed.

Press the key “ ” to set the volume to the minimum, and the key “#”, to the maximum, respectively. Stop melody with the key “0” to return to the all key test mode initial screen.

Stop loop-back with the key “0” to return to the all key test mode initial screen.

(The main display back light MAX; the external display back light Off; the key back light On; the mobile light Off.)

LCD CHECK ∗ GX-20 ∗ ROM VERSION : ∗∗∗

GX20 Diag Version ∗∗∗ CVS Ver. A∗∗_∗∗∗_∗∗∗∗_GX20 BLCD (256) : 089+004 BLCD (64K) : 075

“1”: All White → All Red → All Green → All Blue → All Black → Color gradation → (Returning to white.) “2”: First pressing of the key for white pre-flash of the strobe light. 400 ms full output given after the second pressing (Back to

pre-flash). “3”: Press this key for white pre-flash of the mobile light. The same state is remained until the “0” key is pressed. Press the

key furthermore to change flash colors in the order of “White → Red → Green → Blue → Light blue → Purple → Yellow → (Back to white).

“0”: Press this key to turn off the mobile light and the key back light and then to access the all key test initial screen. “8”: Press this key to turn on the external display back light with “H/W CHECK Den: 075” displayed. Every pressing of the

“Side-Up” changes the screen in the order of “All white → All red → All green → All blue → All black → Color gradation →

VCOM adjustment pattern → (Back to all white)”. Press the “Side-Down” to reverse the order. “2” IrDA Check (115 kbps). Press the key “0” to return to the initial screen. Time out: 1 sec. “3” Display changed to CHG CHECK. Press the key “0” to return to the initial screen.

“4“ Press this key to change the main display to the flickering check pattern. Press the “0” key to return to the all key test initial

AC Charger is inserted to turn on the red LED.

screen.

2 – 76

CONFIDENTIAL

Key Contents

“8” External display contrast check. Press the key “0” to return to the initial screen. To thickness is reflected in the general mode.

“”

“0” To return to the all key test initial screen. “Centre“ To write in the contrast SRAM. (“SaveOK” displayed on the external display.)

“6” Camera turns ON to display camera image. (Optical axis at the left end)

Press the key “Left Soft“ to repeat the operation of “2 x ZOOM → 4 x ZOOM → Standard”. Press the key “Centre“ to repeat the operation of the shutter ON/OFF. Press the key “0“ to return to the all key test initial screen.

“9” Red LED ON. Display is shown below. Back light remains ON. Key back light ON.

RTC contents are displayed at the time the key “9” is pressed. Clock does not tick.

To increase the contrast by one level. (Write operation not performed) (Other set value is changed to obtain the equation, “256-color setting= 65 k-color setting +14”.) To decrease the contrast by one level. (Write operation not performed) (Other set value is changed to obtain the equation, “256-color setting= 65 k-color setting +14”.)

KEY CHECK ∗ GX-20 ∗ ROM VERSION : ∗∗∗

GX20 Diag Version ∗∗∗ CVS Ver. A∗∗_∗∗∗_∗∗∗∗_GX20 BLCD (256) : 089+004 BLCD (64K) : 075

2003/**/** **: **: **

GX20

Press all keys except the key “0” in random order. The first pressing of the key brings white display and red LED OFF. Every pressing makes a bleep. Opening/closing flip also makes a bleep. With flip closed, green LED ON.

Press the key “ ” to sound melody. (When pressing the next key, melody stops.)

Press the key “ ” so sound ringer at max volume. (When pressing the next key, ringer stops.) Press the key “0” before pressing all keys to return to the all key test initial screen. When pressing all keys except the key “0”, ringer sounds at max. volume. Green LED for incoming call blinks and the screen display becomes black. When closing the flip, the ringer stops sounding. (Thereafter the ringer does not sound.) After that open/close the flip to make a bleep. Close it to turn on green LED. Press the key “0” to stop ringer, to turn off green LED for incoming call, and to return to the all key test initial screen.

“#” Sum check.

Press the key “0” to return to the all key test initial screen.

SUM CHECK ∗ GX-20 ∗ ROM VERSION : ∗∗∗

GX20 Diag Version ∗∗∗ CVS Ver. A∗∗_∗∗∗_∗∗∗∗_GX20 BLCD (256) : 089+004 BLCD (64K) : 075 SUM : ∗∗∗∗

2 – 77

GX20

CONFIDENTIAL

Key Contents

“”

Shifting to the mode for temperature correction.

TEMP ADJ

1. CAM TEMP

2. BAT TEMP

0. EXIT

“1” (Selecting the camera side) or “2” (Selecting the battery side) “0” Exit

TEMP ADJ (BAT)

Temp.

: +23 Deg..

Correct : --05 Deg.

" KEY

“ ”: +1 ºC Correction in the correction mode.

“ ”: -1 ºC Correction in the correction mode.

“#”: Determination of corrected value.

TEMP is not updated automatically.

Press the key “0” to return to the all key test initial screen.

Note) Display: No temperature correction during the all key test; Display in the user contrast setting default condition.

* : Display in the external display contrast adjustment mode

: +1 Deg.. : --1 Deg..

6. Initializing Flash User Domain (Manual Test Mode F99)

Only use the troubleshooting procedure, “Power does not turn on” (page 2 - 42). Take care that the user setting data will be lost in this operation. Before starting this mode, be sure to backup the user data, referring to “SOFTWARE DOWNLOAD.”

1. Fit a battery in the set to start the manual test mode.

2. Press the keys, “9” → “9” → “Right Soft”, to start the manual test mode F99 (User Function).

3. When “Select Init Area: ” is displayed on the screen, enter “1” and press the key “Right Soft”.

4. “EE_FORMAT START” is displayed on the screen.

5. When initialization ended, [FINISHED PLEASE ANY KEY] is displayed on the lower part of the screen.

6. Press any key to return to the F99 initial screen.

7. Press the “Centre” key.

8. Press the “End/Power” key to finish operation.

After initialization, start up in the general mode.

2 – 78

Standard position

Standard

position

Case RF, shield (cover)

Fixing tape

Separator

Service label

SIM card connector

(SIM card connector end face)

(External connector end face)

Note:

Do not put the fixing tape on the service label.

Standard position (Corner)

Sensor, Moisture

Back Cabinet (Key)

CONFIDENTIAL

OZ/IQ/YO/CalcGX20Service ManualTQGX20MarketE

CHAPTER 3. DISASSEMBLY AND REASSEMBLY

GX20

[1] Servicing Concerns

1. General

1. Before servicing, you must warn the user that the repair may clear the information stored in the memory.

2. Before storing or transporting the circuit board, put it into the conductive bag or wrap it in aluminium foil. (C-MOS IC may be damaged by electrostatic charges.)

3. In order not to stain cosmetic parts such as a cabinet, especially clear window parts for main and external display panels by finger print or whatever, please cover your finger by finger sack. Also, please take care about surface of main and external display panels not to stamp finger print.

4. To prevent oxidation which cause connection problem, please do not touch any terminal on electric board, microphone, vibrator, earpiece and speaker. If you have to touch there, please cover your finger by finger sack. If you touch those parts, please clean by soft dry cloth. Also, please do not touch shield case on electric board directly without finger sack, otherwise performance of the phone may decline because of oxidation.

5. Since FPC is sensitive, please handle FPC careful so that you will not make any damage.

6. Please do not wet the moisture sensor. Once the sheet is wet, red ink is supposed to run. In this case, please replace the sheet with new one. Please take care about your sweat.

7. Be sure to remove the Li-Ion battery from mobilephone.

8. Take sufficient care on static electricity of integrated circuits and other circuits by using static electricity prevention bands when ser-

vicing.

• SOLDERING SPECIFICATION

Soldering iron must be set to 350° C for 5 seconds.

• Diagram for Service Label Position

Before attaching the cabinet, remove and throw out the service label with IMEI Number written on it as shown in the illustration. If it is not removed or it is put on the other position, the handset may be damaged.

2. For disassembling

1. Please do not remove the board of base band section by pulling external interface connector, otherwise you will make damage to the board.

2. Shield case is attached on shield case holder without clearance. When you remove it, please take care not to remove together with shield case holder. If you remove shield case holder together, you can not attach it again because it is attached by solder and in such a case, you should have taken electric pattern on the board as well.

3. For reassembling

1. Please make sure that all cosmetic parts have no scratch and clean.

2. Please make sure that you can open and close handset smoothly and hear tick sound of hinges.

3. Please make sure that external display cushion can not be seen from the window.

4. Please make sure that main screen display panel is placed in proper position without inclination.

5. Please make sure that all three battery terminals protrude evenly.

6. Please 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 value is for reference when an electric screwdriver (HIOS CL4000) is used.

14.7 ± 2.0 N • cm (1.5 ± 0.2 Kgf • cm)

• STANDARD POSITION OF ATTACHMENT

When replacing the following labels (marked with ), be sure to put new ones on the specified positions.

[Sensor, Moisture]

3 – 1

GX20

Sheet, Sensitivity decrease prevention

Standard position

Main PWB-A

Standard position

Spacer, Driver

Protect Sheet, Main PWB

Main PWB-A (Front Side)

Standard position

External Display Holder Ass'y

Sheet, Light Leak Prevention

CONFIDENTIAL

Standard position

Tape, Mg Holder

Sheet, FPC Fix A

Standard position

Cushion, Battery

[Cushion, Battery]

Standard position

Back Cabinet (key)

Standard position

Cushion, Magnet

Holder, Mg

Standard position

Sheet, Shade

Standard position

[Sheet, Shade]

[Sheet, Sensitivity decrease prevention]

Holder, Mg

Standard position

[Tape, Mg Holder/Cushion, Magnet/Sheet, FPC Fix A/Cushion,

Main PWB Spacer A Application range

Spacer A, Main PWB

Standard position

Application range

[Spacer A, Main PWB/Spacer B, Main PWB/Sheet, FPC Fix B]

Standard position

LED]

Main PWB Spacer B Application range

Cushion, LED

Main PWB-A (Rear Side)

Spacer B, Main PWB

Standard position

Sheet, FPC Fix B

[Protect Sheet, Main PWB/Spacer, Driver]

[Sheet, Light Leak Prevention]

3 – 2

CONFIDENTIAL

Main PWB-A (Rear Side)

Standard position

Spacer, External Display FPC

Cushion, Main Connector

External Display Holder Ass'y

(Front side view)

External Display Holder Ass'y

(Rear side view)

Tape2, External Display Holder

Tape1, External Display Holder

Standard position

GX20

Electrostatic Sheet, Side keys

Standard position

Electrostatic Sheet, Side keys

Standard position

Spacer, Key PWB

Standard position

[Cushion, Main Connector/Spacer, External Display FPC]

Front Cabinet (key)

[Spacer, Key PWB/Electrostatic Sheet, Side keys]

Spacer, Relay FPC_B

Standard position

[Spacer, Relay FPC_B]

Main PWB-A (Front Side)

[Tape1, External Display Holder/Tape2, External Display

Holder]

Sheet, Reinforcement

External Display (Front side view)

Standard position

[Sheet, Reinforcement/Spacer,External Display L/Spacer,Exter-

Standard position

nal Display R]

Spacer, External Display L

External Display (Rear side view)

Standard position

Spacer, External Display R

Standard position

3 – 3

GX20

Back Cabinet (Display)

[Cushion, Reinforcement]

CONFIDENTIAL

Application range

Cushion, Reinforcement

Standard position

Driver Sheet Application range

Sheet, Driver

Front Cabinet (Display)

[Cushion, Driver/Sheet, Driver]

Standard position

Cushion, Driver

3 – 4

CONFIDENTIAL

[2] Disassembly and reassembly

• To reassemble, follow the reverse procedure.

STEP REMOVAL PROCEDURE FIGURE

1 Back Cabinet

(Key) Ass’y

2 Key PWB-B 1.Socket...................

1.Battery Cover........

2.Li-Ion Battery.........

3.Screw Cover..........

4.Screw....................

5.Hook.....................

2.Solder....................

3.Hook.....................

(A1)x1 (A2)x1 (A3)x2 (A4)x4 (A5)x5

(B1)x2 (B2)x7 (B3)x4

GX20

(A1) x 1

(A2) x 1

(A3) x 2

(A4) x 2 Ø1.7x5mm

Back Cabinet (Key) Ass'y

(A5) x 5

Back Cabinet (Display) A'ssy

Figure 1

Relay FPC_A PWB-C

(B1) x 1

Relay FPC_B PWB-D

(B2) x 1

(B2) x 2

Relay FPC_C PWB-E

(B1) x 1

Flexible PWB, Side Switch

Key PWB-B

PWB-I

(B2) x 2

Cover, Jack

Keys, Side

(Hands Free)

Cover, External Connector

(B3) x 4

Electrostatic plate (Inside) *

Back Cabinet (Display) A'ssy

Figure 2

* Be careful not to deform the electrostatic plate (PSLDC3348AFZZ)

used to eliminate static electricity when installing/removing the key PWB.

3 – 5

GX20

CONFIDENTIAL

STEP REMOVAL PROCEDURE FIGURE

3 Back Cabinet

(Display) Ass’y

4 Main PWB-A 1.Solder....................

1.Screw Cover..........

2.Screw....................

3.Hook.....................

2.Sheet....................

3.Socket...................

4.Hook.....................

(C1)x4 (C2)x4 (C3)x11

(D1)x3 (D2)x2 (D3)x6 (D4)x2

(C3) x 2

Main PWB-A

(C2) x 2 Ø1.7x5mm

(C1) x 2

(C3) x 7

Back Cabinet (Display) Ass'y

(C3) x 2

(C2) x 2 Ø1.7 x 4.5 mm, Black

(C1) x 2

(D4) x 1

(D3) x 1

(D3) x 3

(D1) x 3

Figure 3

Back Light FPC Ass'y

(D2) x 1

Main PWB-A

Figure 4

External Display/ External Display Holder

(D4) x 1

(D3) x 2

Main Display

(D2) x 1

Main Display/ Main Display Holder

3 – 6

- MEMO -

CONFIDENTIAL

GX20

3 – 7

GX20

OZ/IQ/YO/CalcGX20Service ManualTQGX20MarketE

CHAPTER 4. DIAGRAMS

[1] Block diagram

[Main]

CONFIDENTIAL

RF I/F

GPO_3

EP100 EARPIECE

MIC100 MICROPHONE

JK301 HANDS FREE CONNECTOR

V-ANA

IRXP IRXN QRXP QRXN

VINT

ITXP ITXN QTXP QTXN

VOUT****

VIN****

AUXADC[1:6]

GPO_3

VSIM

VCORE

VANA

VMEM

(Not use)

MVBAT

RAMPDAC AFCDAC

IC102

Filter

I Receive ADC

QReceive ADC

PGA

SIM LDO

DIGITAL Core LDO

ANALOG LDO

TCXO LDO

MEMORY LDO

RTC LDO

REF BUFFER

GPIO_7(Jack det)

VANA VCORE VMEM

AD6521ACA ANALOG BASEBAND

RAMP DAC

Voltage Reference

Battery Voltage Divider

ROWX

I Transmit DAC

Q Transmit DAC

Filter

ADC

AFC DAC

IDAC

AUX ADC

Power-UP Sequencing And Protection Logic

PWRONKEY

Filter

PGA

CLKON,GPO_1(TXON) GPO_2(BS2),GPO_9(RFON) GPO_16(BS0),GPO_17(BS1)

GSMK MOD

Power Ranping RAM

Filter

DAC

Filter

Control Registers

IC202

ADP3408ACP POWER SUPPLY

GATEIN

Battery Charge Controller

CHGIN

Baseband Serial Port

Voiceband Serial Port

Auxiliary Serial Port

BATT+

PWRONOIN

CLKON,GPIO_24(SIMEN)

High(VMEM)

GPO_2(CHGEN) GPIO_10(EOC) GPIO_6(CHRDET)

BATSNS GATEDR ISENSE

GPO_18(SYNTHEN) GPO_20(SYNTHDATA) GPO_21(SYNTHCLK)

BSDO,BSOFS BSDI,BSIFS

GPO_0 (RXON) GPO_1 (TXON) GPO_5 (ARSM) GPO_6 (ATSM)

ASDO,ASFS ASDI

CSDO,CSFS CSDI

GPO_29(RESET)

CLKOUT_GATE

CLKOUT (13MHz)

VINT

2.6V detect

nRESET

PWRON

External Circuit For Charging

CLKIN (13MHz)

AD6529

IC104

DIGITAL BASEBAND

HSL/ Trace

MCU Subsystem

SBUS

BOOT

ROM Serial number

MCU ARM7T

52MHz

MMI

GPIO

DISPLAY

RTC

KEYPAD

BMC

SIM

USC

UART

USB 1.1

Fast IrDA

MMC/SD

USC5(CTS)

USC4(RTS)

USC3(GPIO_28,CD)

USC0(ADP/GSPda_TX/DAICLK)

EXTERNAL CONNECTOR

CN302

USC2(TXD)

USC1(RXD)

KEYPADROW[4:0] KEYPADCOL[4:0]

GPIO_36(ADPDET)

USC 6(CONT2/GSPdb_RX/DAIRESET)

GPIO_37(Genie_SW)

GPIO_35(CONT1/DTR)

V-EXT_CN (2.5V)

KEYPAD:5X5 IC306 TK71635S

REG15 for LODER

Q305

5.2V/600mA From AC/DC CHAGER

Figure 1 MAIN BLOCK DIAGRAM (1/2)

4 – 1

POWER ON KEY

GPIO_12

KEYPAD BACK LIGHT

SIMDATAIO

VSIM

SIMCLK GPIO_23(RESET)

CN301

SIM CARD

CONNECTOR

3V 0NLY

BATT+

IC205 R1160N301B

VINT:3.0V

REG8

Controlled by VMEN

Li-Ion BATTERY 720mAh

FLIP KEY

IC204

R3111Q251C

VOLTAGE

DETECTOR

REG10

IC201 XC6209B302MR HIGH SPEED LDO REGULATOR

GPIO_11

VRTC 1.8V

Q201

2.5V DET

BAT100 BACK-UP BATTERY

REG1

CONFIDENTIAL

GX20

BAND

HSL/ Trace

MCU ARM7TDMI

MHz

LAY

PAD

B1.1

IrDA

C/SD

1.8V

REG14

IC203 RQ5RW18B

VBACK 3.0V

VSIM VCORE VMEM VINT VRTC VDDUSB VMC VEXT

BSPORT

VSPORT

Cipher Coprocessor

Viterbi Coprocessor

Cache 16k byte

CLK & BS GEN

HOUSE-KEEPING

System DMA

General Timers

IRQ-CTRL & RAU

VMEM 2.8V

When JTAGEN=H, automaticaly

SPORT-0

SPORT-1

PLL

IDMA

DSP ADSP-218x

78MHz

DMA and BUS ARBITRATION

Internal SRAM (2Mbit)

COMMS-SYSTEM

GPIO_18 TCK GPIO_19 TMS GPIO_20 TDI GPIO_21 TDO

JTAG I/F

DSP Subsystem

Cache RAM (4k word)

PM (16k word)

DM (16k word)

RBUS 2M

MicroSM

Slow Clocking

A-SPORT

Synth i/f

X102 32kHz CRYSTAL

OSCIN OSCOUT

PBUS

Cipher Engine

WDT

Peripheral PLL

Peripheral Subsystem

ADDRESS & DATA BUS/GPIO(INT)

LEDA

4Mbit(X16) nRAMCS2

GPIO_8

Q207

UN101

INFRARED PORT

SRAM

eGSPa

GPIO_1(RXD) GPIO_0(TXD)

SC-RAM

64Mbit(X16)

nRAMCS1

JTAGEN

EBUS

RBUS 2M

Internal SRAM (2Mbit)

V-INT: 3.0V

GPIO_8(Hardware revison monitor[0]) GPIO_16(Hardware revison monitor[1]) GPIO_17(Hardware revison monitor[2])

nWE,nRD,nDISPLAYCS2, ADD[19:17],ADD[2:1],D[15:0]

Controlled by VMEN

IC208 XC6209B252MR Q205

nRD,nWE,GPO_25(RSP),nWAIT, GPIO_33(LCDINT),DATA[15:0], GPO_10(BUFOFF)

nDISPLAYCS1

LED (BLUE)

LED (GREEN)

LED (RED)

GPO_19

nAUXCS2

nWE,nRD,ADD[1] DATA[7:0], GPIO_15(RESET), GPIO_38(INT)

nROMCS1,nRAMCS1, nRAMCS2,nGPCS1 ADD[22:1],DATA[15:0] nWE,nRD,nUB,nLB, GPIO_14(WP),nRESET

FLASH2

64Mbit(X16)

nGPCS1

IC106 LRS1B24 4-LEVEL STACK MEMORY

GPIO_47

GPIO_34

GPO_7

V-CCD:2.5V

REG7

V-INT:3.0V

GPIO_39

SE_D0, SE_LD2, SE_CK

VBAT

IC402

IX3053AF

POWER MANAGEMENT

(BD6010 Rohm)

FLASH1

64Mbit(X16)

nROMCS1

IP part

RESET

INT

CAMP CAMN

GPIO_3

EQ3

GPO_11(E_AMP)

CA1001 CAMERA UNIT

DSP part

VDD2

VDD1

IC207

R116018B

CAM_CK

RESET

IC403

DISPLAY CONTROLLER

LR38863

DISPLAY DRIVER IC

LCD001

EXTERNAL DISPLAY

MAIN DISPLAY BACKLIGHT

EXTERNAL

DISPLAY BACKLIGHT

IC103 YMU759B

SOUND

(MA2)

HP_OUT

IC209 TK11130C

AUXADC2

REG17

AUXADC5

3.0V

13V

CCD sensor

V-Driver

ADD

IC206

TK1131C

REG9

REG11

Controlled by VMEM

LCD100

MAIN DISPLAY

(CGS module)

VDDPLL

VDDCORE

NJM2871F03

IC101 NJM2149R

SPEAKER AMP.

IC105 TEMP.SENSOR LM20BIM7

For CAMERA

TEMP.SENSOR LM20BIM7

For BATTERY

3.1V

V-LCD:1.8V

CLKOUT(13MHz)

GPIO_4

GPO_23

CLKOUT(13MHz)

SP100 SPEAKER

V-INT:3.0V

IC302

Bias

IC307

REG13

MO100

VIBRATOR

-7V

VBAT

IC404

LT1937

DC-DC

3.0V

Figure 2 MAIN BLOCK DIAGRAM (2/2)

4 – 2

GX20

CONFIDENTIAL

[RF]

SYNTHDATA

SYNTHCLK

+B(VTCXO)

BS0

BS1 BS2

RAMPDAC

SYNTHEN

ITXN

ITXP QTXN QTXP

TCXOOUT

AFCDAC

28,30,31,32,41,46

TCX951

26MHz VCTCXO

+B(VRF)

LOGIC

35 39 37

20 21 22

1/2

IC991 NL27WZ08 IC992 TC7W00FK IC993 NL27WZ08

SERIAL DATA INTERFACE

I&Q MOD

90DEG SHIFT1/2

1/2

RF IC901 HD155148TF

PHASE DETECTOR

RF SYNTHESIZER

+B(VRF)

QRXN

QRXP

IRXP

IRXN

LOOP FILTER

2,13,16,18,47,56

1,3,6,9,12,14,19

29,34,40,45,48,51

IF SYNTHESIZER

IFVCO EGSM 975CH - 4CH 656MHz

5CH - 124CH 640MHz

DCS 512CH - 665CH 640MHz

666CH - 885CH 656MHz

PCS 512CH - 810CH 640MHz

PGA PART

PGA

1/2

90DEG SHIFT

LNA

Figure 3 RF BLOCK DIAGRAM (1/2)

4 – 3

CONFIDENTIAL

GX20

TxVCO EGSM 880.2MHz - 914.8MHz DCS 1710.2MHz - 1784.8MHz PCS 1850.2MHz - 1909.8MHz

LOOP FILTER

Tx VCO VCO851

43,44

FL971

50493

746

BALUN

2,5

SAW FILTER FL901

SAW FILTER FL902

+B(VTXVCO)

11 3, 7

1,3,5

+B(VTXVCO)

+B(VBAT)

3,6

2,4,6,8 10,12

LOOP FILTER

RF VCO VCO971

RFVCO Tx EGSM 3848.8MHz - 3979.2MHz

Rx EGSM 3700.8MHz - 3839.2MHz

+B(VSYNTH)

DCS 3580.4MHz - 3733.6MHz PCS 3860.4MHz - 3979.6MHz

DCS 3610.4MHz - 3759.6MHz PCS 3860.4MHz - 3979.6MHz

2,4,6,8

GSM Rx

DCS Rx

IC831 PF08123B RF POWER AMP.

4,9,10

5,6,7

1,2,15,16

AUTO POWER CONTROL

12 13

R811

2,5

DIRECTIONAL COUPLER FL811

6,10,12

FL801 RF SWITCH

IC881

HD155173

11,14

R816

2,32,3

ATTATT

DIRECTIONAL COUPLER FL816

2,5

DCS/PCS Tx

GSM Tx

11 1

2,4,8

FL817 ESD DEVICE

EGSM Band Tx 880.2MHz - 914.8MHz Rx 925.2MHz - 959.8MHz DCS Band Tx 1710.2MHz - 1784.8MHz Rx 1805.2MHz - 1879.8MHz PCS Band Tx 1850.2MHz - 1909.8MHz Rx 1930.2MHz - 1989.8MHz

RF CONNECTOR

3,4

AERIAL

J801

SAW FILTER FL903

1,3,5

PCS Rx

Figure 4 RF BLOCK DIAGRAM (2/2)

4 – 4

Rx LINE

Tx LINE

CONTROL LOGIC LINE

GX20

- MEMO -

CONFIDENTIAL

4 – 5

CONFIDENTIAL

OZ/IQ/YO/CalcGX20Service ManualTQGX20MarketE

CHAPTER 5. SCHEMATIC DIAGRAM AND WIRING SIDE OF P.W.BOARD

GX20

[1] Notes on schematic diagram

•Resistor:

To differentiate the units of resistors, the symbols K and M are used. The symbol K means 1000 ohm and the symbol M means 1000 kohm. The resistor without any symbol is an ohm resistor.

• Capacitor:

To indicate the unit of capacitor, the symbol is used. The symbol P means pico-farad and the unit of the capacitor without such a symbol is microfarad. As to electrolytic capacitor, the expression “capacitance/withstand voltage” is used. (CH), (RH), (UJ): Temperature compensation (ML): Mylar type (S): Styrol type (PP): Polypropylene type

[2] Types of transistor and LED

(3)

(G)

(1)

(S)

2SA1955 A 2SA1989 SR 2SC4617 R 2SK3019 MCH3443 RT1N144 U

TOP

VIEW

(2)

(D)

CPH6311 FDG311 N

TOP

VIEW

(S)

(D)

(G)

TOP

VIEW

EMD6 EMD9 EMD12 EMG9 UM6K1

• The indicated voltage in each section is the one measured by Digital Multimeter between such a section and the chassis with no signal given.

• 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.

(G)

(D)

(S)

(G)

(S)

(G)

FDC6322 C

TOP

VIEW

(D)

(S)

(D)

(2)

VIEW

EMH11

TOP

(3)

(1)

TOP VIEW

1SS388 1SS405 RB160M30 RB520S30 RB521S30 RB551V30

TOP VIEW

YPY1105C

TOP VIEW

CUS01

TOP VIEW

NSCW335T

TOP VIEW

HN2S01FU

TOP VIEW

GM56271A

TOP VIEW

RD22SL RSB6.8S

5 – 1

GX20

[3] Waveforms of circuit

RF UNIT PLL_IC SERIAL COMMUNICATION

CONFIDENTIAL

TCXOEN (STAND-BY) IC304 1Pin

RFON_B (STAND-BY) R351 (Q304 5Pin)

SYNTHDATA (STAND-BY) IC901 39Pin

SYNTHEN (STAND-BY) IC901 35Pin

TXON_B (Talking) R352 (Q304 4Pin)

SYNTHCLK (STAND-BY) IC901 37Pin

QTXN (Talking) C924 (IC901 22Pin)

QTXP (Talking) C924 (IC901 23Pin)

5 – 2

CONFIDENTIAL

GX20

ITXN (Talking) C923 (IC901 20Pin)

ITXP (Talking) C923 (IC901 21Pin)

IRXN (Talking) IC901 27Pin

IRXP (Talking) IC901 26Pin

QRXN (Talking) IC901 24Pin

QRXP (Talking) IC901 25Pin

BS0(GSM) (Talking) IC993 1Pin

BS1(GSM) (Talking) IC993 2Pin

5 – 3

GX20

CONFIDENTIAL

BS2(GSM) (Talking) IC992 1Pin

BS0(DCS) (Talking) IC993 1Pin

CLKIN (Stand-by) C148 (IC104 142Pin)

CLKOUT (Stand-by) Jumper (IC104 84Pin

–IC102 46Pin)

BS1(DCS) (Talking) IC993 2Pin

BS2(DCS) (Talking) IC992 1Pin

OSCIN (32 kHz) (Stand-by) R147 (IC104 49Pin)

DCLK (Stand-by) TP424

5 – 4

Sharp GX20 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual