Voxtel V50 Service Manual

GPRS PHONE SERVICE MANUAL

MODEL : V50

Rev. 1.00

Table Of Contents

1. Introduction 1-1 ·······································································································

2. Specification 2-1

2.1 H/W Features 2-1

2.2 S/W Features 2-2

3. Disassembly Instruction 3-1

3.1 Before Disassembly 3-1

3.2 Main Frame 3-2

3.3 Folder 3-3

3.4 Exploded View and Parts List 3-5

3.4.1 Exploded View 3-5

3.4.2 Mechanical Parts List 3-7

4. Data Kit & Download Procedure 4-1

4.1 Data Kit 4-1

4.1.1 Download Equipment 4-1

4.1.2 Download Procedure 4-1

5. Troubleshooting 5-1

5.1 Power-On Trouble 5-1

5.2 MIC Trouble 5-2

5.3 Receiver Trouble 5-3

5.4 Melody Trouble 5-4

5.5 LCD Trouble 5-5

5.6 Charge Trouble 5-6

5.7 Vibrator Trouble 5-7

5.8 Backlight Trouble 5-8

5.9 SIM Detection Trouble 5-9

5.10 Ear Phone Trouble 5-10

5.11 Camera Trouble 5-11

5.12 TX Power Trouble(E-GSM) 5-12

5.13 TX Power Trouble(DCS) 5-14

5.14 RX Sensitivity Trouble(E-GSM) 5-16

5.15 RX Sensitivity Trouble(DCS) 5-18

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I

Table of Contets

6. Block Diagram 6-1 ···································································································

6.1 BB Block Diagram 6-1

6.2 RF Block Diagram 6-2

7. Schematic Diagram 7-1

7.1 Key Pad 7-1

7.2 Main Board 7-2

7.2.1 Chipset (Calypso & IOTA) 7-2

7.2.2 Memory & Melody 7-3

7.2.3 Audio & SIM Interface & Charger 7-4

7.2.4 I/O & B’d to LCD Connector 7-5

7.2.5 Camera 7-6

7.2.6 LCD Module 7-7

7.3 RF Schematic 7-8

7.3.1 RF Pam 7-8

7.3.2 RF Main IC 7-9

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8. PCB Diagram 8-1

8.1 Main PCB 8-1

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9. Electrical Part List 9-1

9.1 Circuit Part List 9-1

9.2 Mechanical Part List 9-6

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II

1. Introduction

V50 is a folder type mobile phone operated in the GPRS Digital Cellular Mobile Radio System, which is the Pan-European mobile cellular standard. V50 has the operation band of GSM 900 and DCS 1800. GPRS Class 10 II features are fully supported and parts of the GSM Phase II+ features are also supported. About the SIM Toolkit, V50 supports up to Class 3 including Class 1, 2. For speech communication, V50 supports Full Rate(FR), Enhanced Full Rate(EFR) and Half Rate(HR). For easy text, eZi Text is implemented and WAP protocol is adopted for internet connection.

1-1

Introduction

Memo

1-2

2. Specification

2.1 HW Features

Item Description Remark

Supporting standard

Frequency range

Battery

Display

3 Color LED Not Applied Antenna Fixed type PC synchronization Applied

GSM 900/DCS 1800 Dual Band E-GSM Phase 2 and Phase 2+ SIM Toolkit : Class 1,2,3 GPRS Class 10

E-GSM TX : 880 - 915 MHz E-GSM RX : 925 - 960 MHz DCS 1800 TX : 1710 - 1785 MHz DCS 1800 RX : 1805 - 1880 MHz

Capacity

Standard : Li-ion, 780 mAh

Full graphic type Dual LCD

Main 65k Color-STN LCD Pixels : 128 x 160 Ext. 65k Color-STN LCD Pixels : 96 x 96

Speech coding FR, EFR, HR Data & Fax Built-in Vibrator Built-in Dual Speaker Applied (64 poly) Portable Handsfree (Ear-Phone) Built-in Travel charger Built-in

2-1

2.2 SW Features

Function Detail Item Comments

Specification

Normal features

Call Earpiece volume 5 level Audio

Cell broadcast Read topics SIM

Supplementary services

Outgoing calls 30 entry Incoming calls 30 entry Missed calls 30 entry Dial Memo 1 Call waiting Yes(network dependent)

Mute on& Mute off Yes CB option Activate/Deactive

Languages Same as number of language Divert If No Reach

If Busy If No Reply All calls Cancel All

Call wating Call Barring Outgoing

Send My Caller ID Network Select

International calls International Exc. Home Incoming call Incoming when Roam Cancel All Bars Change password

Automatic Manual

2-2

Specification

Function Detail Item Comments

Text Message

Info Message Voice Mail Multi-band

Miscellaneous function

Write message Send/Store Output message

Send/Save Delete/Delete All

Input message

Reply/Forward

Delete/Delete All Unsent Message Template Settings

Velidity Period/SMSC/

Status Report Read/Topics(SIM)

Languages/Alert Call Voice Mail/Set VMSC

Support of multi-band & mode

GSM 900

EGSM

DCS1800 Development & test facility

Field test facility Display software version Language English

Simplified Chinese eZi text Predictive word input View Day/Weeky

Text input

Make Meet

Birthday

Anniversary

Memo

Call

Scheduler

Delete Find

Of Chosen Day/All Days/

Old Events

All/Meet/Birthday/Anniversary/

Memo/Call WAP

Number of selectable cities *, -, +, /

WAP World time Calculator

2-3

Specification

Function Detail Item Comments

PhoneBook

Game 4 EA (Main 3 EA, Front 1 EA)

Main LCD 3EA (Mobile DJ, Pong Pong, Cinderelia) Sub LCD 1EA (Animal Farm) Camera

Multi-Media Message

Search Add New Entry Caller group Speed Dial Management Special Number

Shot Display Setting

New Text Message New multimedia message Inbox Message Outbox Message Drafts Sent

Mobile DJ Pong Pong Animal Farm Cinderelia

Templates Settings Exit

Sending/Retrieva l mode/Filt ers/ MMSC/Network

2-4

3. Disassembly Instruction

3.1 Before Disassembly

1. Remove the battery. To do so: ① Pull the battery lock above the battery toward

the top of the phone and hold it in the position.

② Lift the battery away.

2. Remove the SIM card. To do so:

① Remove the SIM card as shown.

3-1

Disassembly Instruction

3.2 Main Frame

1. Remove Five screws on the back of the phone.

2. Insert a small ‘ - ‘ type driver between the front case the rear case, and lift up the front case.

3. Remove the rear case as described at Steps 1 and 2 under Main Frame Disassembly on page 3-2.

Unplug the connector shown at right from

the main PCB.

Rear case

Front case

Connector

Main PCB

3-2

y

4. Now, you can replace the PCBs and the other components.

Ke

Main PCB

5. Unhook the folder from the main frame.

Disassembly Instruction

Pad

3-3

y

3.3 Folder

1. Remove two screws from the folder.

2. Insert a small ‘ - ‘ type driver between the folder upper and the folder lower, and lift up the folder upper.

3. Now, you can remove the LCD ass’y and the other components.

Folder upper

Folder lower

Disassembly Instruction

LCD ass’

3-4

3.4. Exploded View and Parts List

3.4.1 Exploded View

Disassembly Instruction

3-5

Disassembly Instruction

3-6

Disassembly Instruction

3.4.2 Mechanical Parts List

NO. DESCRIPTION Q’TY NO. DESCRIPTION Q’TY

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

SUB ASS’Y DECO CAMERA WINDOW CAMERA SUB ASS’Y FOLDER UPPER SHIELD FOAM LCD SIDE CUSHION CAMERA CUSHION CAMERA CON ASS’Y LCD SHIELD FOAM MAIN LCD SUB ASS’Y FOLDER LOWER WINDOW MAIN DECO EAR SUB ASS’Y DECO WINDOW WINDOW SUB PROTECTION LCD DUST SHIELD FOAM FOLDER SCREW FOLDER BADGE ASS’Y FOLDER SUB ASS’Y FRONT COVER SIDE KEY

21

1

22

1

23

1

24

1

25

1

26

1

27

1

28

2

29

1

30

1

31

1

32

1

33

1

34

1

35

1

36

2

37

1

38

1

39

1

40

1

41

1

KEY PAD NAVI KEY PAD MAIN METAL DOME RUBBER MIC TAPE PROTECTION MAIN CHIP SHIELD FOAM DOME MAIN PCB RUBBER IO SUB ASS’Y REAR COVER SCREW MAIN SHEET SIM CHIP SHEET SIM COVER RUBBER RF RUBBER SCREW CAP ANTENNA CAMERA KEY SPONGE CONNECTOR SHIELD FOAM FRONT TAPE FRONT LIGHT SHIELD HINGE CUSHION CON

1 1 1 1 1 1 1 1 1 5 1 1 1 1 1 1 1 2 1 1 1

3-7

4. Data Kit & Download Procedure

4.1 Data Kit

4.1.1 Download Equipment

Data Kit & Download Procedure

1. Download Cable

2. Desktop or Notebook PC

3. Download Fluid Program

4. V50 Mobile Phone

4.1.2 Download Procedure

DOWNLOAD ENVIRONMENT

To download software of V50, the following environments should be Prepared:

 V50 downlo a d cab le, Interf ace JIG , is connect ed to serial port of the desktop or notebook PC.  V50 download fluid program is copied to the desktop or notebook PC.  Target software is downloaded to the V50 mobile phone.

Warning

You must use the download cable kit(Interface JIG) and UART download monitor program. Otherwise, downloading process won't work properly.

4-1

Data Kit & Download Procedure

DOWNLOAD PROCEDURE

1. Unzip V50 download fluid program (fluid1.5.zip) in the PC.

2. Execute fluid_gui.exe. And then select "Global settings" tab. Then choose a correct serial port in

the RS232 serial port Box. <Figure 1>

3. To download software, you must add the target software in the "Erase/Program flash" tab.

So, Push the "Add" button, then choose the target software that you want to download.

4-2