Voxtel GSM ST11 User manual

GSM PHONE
SERVICE MANUAL
MODEL : ST11

Rev. 1.00

I
Table Of Contents
1. Introduction ........................................................................................................ 1-1
2. Specification ....................................................................................................... 2-1
2.1 HW Features ................................................................................................................................................ 2-1
2.2 SW 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 ...........................................................................................................................3-6
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 7-LED 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

II
Ta ble 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 (Ulysse&Omega) ..................................................................................................................7-2
7.2.2 Memory & Melody .............................................................................................................................7-3
7.2.3 Audio & Peripheral Circuit ...............................................................................................................7-4
7.2.4 I/O & B’d to B’d Connector Interface .............................................................................................7-5
7.3 RF Top Schematic ........................................................................................................................................ 7-6
7.3.1 RF Pam ..................................................................................................................................................7-6
7.3.2 RF Main IC ...........................................................................................................................................7-7
8. PCB Diagram ......................................................................................................................................... 8-1
8.1 Main PCB ..................................................................................................................................................... 8-1
9. Electrical Part List .............................................................................................................................. 9-1
9.1 RF Part List .................................................................................................................................................. 9-1
9.2 Base Band Part List ..................................................................................................................................... 9-3
9.3 Key PCB Part List .........................................................................................................................................9-6

1. Introduction
ST11 is a folder type mobile phone operated in the GSM Digital Cellular Mobile Radio System, which is the
Pan-European mobile cellular standard. ST11 has the operation band of GSM 900 and DCS 1800. GSM Phase II
features are fully supported and parts of the GSM Phase II+ features are also supported. About the SIM Toolkit,
ST11 supports up to Class 3 including Class 1, 2. For speech communication, ST11 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

1-2
Introduction
Memo

2. Specification
2.1 HW Features
Item Description Remark
Supporting standard GSM 900/DCS 1800 Dual Band
E-GSM
Phase 2 and Phase 2+
SIM Toolkit : Class 1,2,3
Frequency range E-GSM TX : 880 - 915 MHz
E-GSM RX : 925 - 960 MHz
DCS 1800 TX : 1710 - 1785 MHz
DCS 1800 RX : 1805 - 1880 MHz
Battery Capacity
Standard : Li-ion, 720 mAh
Slim : Li-ion, 600 mAh
Display Full graphic type
Dual LCD
Main LCD
Pixels : 128 x 96
Ext. LCD
Pixels : 96 x 32
7 Color LED Indicator
Antenna Fixed type
PC synchronization Applied
Speech coding FR, EFR, HR
Data & Fax Built-in
Vibrator Built-in
Dual Speaker Applied (40 pole)
Portable Handsfree (Ear-Phone) Built-in
Travel charger Built-in
2-1

2-2
Specification
2.2 SW Features
Function Detail Item Comments
Normal features Last dialed number 30 entry
Last received number 30 entry
Last missed number 30 entry
Dial meno 1
Call Call waiting Yes(network dependent)
Audio Earpiece volume 5 level
Mute on& Mute off Yes
Cell broadcast CB option On / Off
Read topics SIM / Phone
Languages Same as number of language
Supplementary services Call barring All calls
All outgoing calls
All outgoing international calls
All outgoing int. calls except to home country
All incoming calls
All incoming calls when roaming
Short Message Write message Send/Store
Output message Send/Save/Extract Number/
Delete/Delete All
Input message Reply/Forward/Extract number/
Delete/Delete All
Status report Delete/Delete All
Call voicemail
Cell broadcast CB Option(On/Off)/Read
Topics(SIM/Phone)/Languages

2-3
Specification
Function Detail Item Comments
Memory status
Settings Status report/Message type
Expiry period/SMS center
Voice center/Alert
Multi-band Support of multi-band & mode GSM 900
EGSM
DCS1800
Miscellaneous function Development & test facility
Field test facility
Display software version
Text input Language English
Simplified chinese
Traditional chinese
eZi text Predictive word input
Scheduler View
Make Schedule
Call
Memo
Anniversary
Delete
View all Delete All Go Today
WAP WAP
World time Setting local time
Number of selectable cities 61 Cities

2-4
Specification
Function Detail Item Comments
PhoneBook Search All
Number Search
Name Search
Add New Entry
management
Game 2EA Eggaman
Honey
(
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3. Disassembly Instruction
3.1 Before Disassembly
②Remove the SIM card as shown.
3-1
①②
2. Remove the SIM card. To do so:
①Slide the metal lock in the direction of arrow.
1. Remove the battery. To do so:
①Pull the battery lock above the battery toward the
top of the phone and hold it in the position.
②Lift the battery away.

3-2
Disassembly Instruction
3.2 Main Frame
1. Remove the three screws on the back of the phone.
2. Insert a small ‘ - ‘ type driver between the front case
and the rear case, and lift up the front case.
Front case
Rear case
Main PCB
Key Pad
3. Now, you can replace the PCBs and the other
components.

3-3
Disassembly Instruction
1. Remove the rear case as described at Steps 1 and 2
under Main Frame Disassembly on page 3-2.
2. Unplug the connector shown at right from the main
PCB.
3. Unhook the folder from the main frame.
3.3 Folder
4. Remove the three screws from the folder.
Connector
Main PCB

3-4
Disassembly Instruction
6. Now, you can remove the LCD ass’y and the other
components.
LCD ass’y
5. Insert a small ‘ - ‘ type driver between the folder
upper and the folder lower, and lift up the folder
upper.
Folder upper
Folder lower

3.4. Exploded View and Parts List
3.4.1 Exploded View
3-5

3-6
Exploded View and Parts List
NO. DESCRIPTION Q’TY
1BATTERY 1
2KNOB SLIDE 1
3SPRING 1
4CASE REAR 1
5RURRER EAR MIC 1
6ANTENNA 1
7BRACKET ANTENNA 1
8RUBBER R/F 1
9 LOCKER SIM 1
10 SCREW 4
11 PCB MAIN ASS’Y 1
12 RUBBER I/O 1
13 KEY PAD 1
14 SIDE KEY 1
15 RUBBER MIC 1
16 CASE FRONT 1
17 SCREW 3
18 WINDOW MAIN 1
19 DECO WINDOW 1
20 INDICATOR-R 1
21 WINDOW SUB 1
22 BEZEL 1
23 FOLDER UPPER 1
24 PCB FOLDER ASS’Y 2
25 HINGE 1
26 FOLDER LOWER 1
3.4.2 Mechanical Parts List

4. Data Kit & Download Procedure
4.1 Data Kit
4.1.1 Download Equipment
1. Download Cable
2. Desktop or Notebook PC
3. Download monitor program
4. ST11 mobile phone
4.1.2 Download Procedure
DOWNLOAD ENVIRONMENT
To download software of ST11, the following working environments should be
prepared:
• ST11 download cable, Interface JIG, is connected to only COM1 serial port of the desktop or notebook PC.
• ST11 download monitor program is copied to the desktop PC or notebook PC.
• Target software is downloaded to the ST11 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

4-2
DOWNLOAD PROCEDURE
1. Unzip ST11 UART Download monitor program (monitor662.zip) in the PC.
2. Execute monitor662.exe. And then select Target menu. Then, choose Connect from the Target menu.
3. A table will be displayed as shown in <Figure 2>. Then press the arrow-button and choose a correct serial
port. And press OK button.
Data Kit &Download Procedure
<Figure 1>
<Figure 2>

4-3
Data Kit & Download Procedure
4. As the following window shown in <Figure 3> is displayed, connect ST11 phone to the download cable,
(Interface JIG) and press power on key of ST11. If the connection is succeeded, the following screen will
show the contents as shown in <Figure 4>.
<Figure 3>
<Figure 4>

4-4
Data Kit & Download Procedure
5. Click on Flash on the top menu and select Erase and Program Appli only item as shown in <Figure 5>.
6. Choose the target SW that you want to download. And then you can see the following window in
<Fingure 6>.
<Figure 5>
<Figure 6>