LG 600 Schematics 1
SERVICE MANUAL MODEL : LG-600
GSM Phone
SERVICE MANUAL
MODEL : LG-600
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1. Introduction
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2
2. Specification & Feature
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2
2.1 Product Name
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2
2.2 Supporting Standard
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2
2.3 Main Parts
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2
2.4 Main Features
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3
2.5 HW Features
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4
2.6 SW Features
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6
3. Keypad Arrangement &
Functions
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10
3.1 Keypad Arrangement
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10
3.2 Functions of Keys
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11
4. Disassembly/Reassembly
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12
4.1 Disassembly
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12
4.1.1 Disassembly of Upper Case/Lower
Case
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12
4.1.2 Disassembly of Lower-Case
Components
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13
4.1.3 Assembly of Lower Case
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15
4.1.4 Disassembly of PCB
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16
5. Data Kit & Test Method
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17
5.1 Data Kit
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17
5.1.1 Download Equipment
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17
5.1.2 Data Kit Download
Procedure
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17
5.1.3 Test Equipment
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21
5.1.4 Test Equipment Setup
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21
5.2 Test Method
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22
5.2.1 Power-On Trouble
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22
5.2.2 MIC Trouble
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23
5.2.3 RECEIVER Trouble
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24
5.2.4 Melody Trouble
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25
5.2.5 LCD Trouble
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26
5.2.6 Charge Trouble
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27
5.2.7 Vibrator is not working
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28
5.2.8 Backlight is not Working
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29
5.2.9
TX POWER Trouble(E-GSM)
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30
5.2.10 TX Power Trouble(DCS)
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32
5.2.11 RX Sensitivity
Trouble (E-GSM)
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34
5.2.12 Rx Sensitivity
Trouble(DCS)
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37
6. PCB Diagram & Testpoint
Description
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40
7. Block Diagram
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45
7.1 BB Block Diagram
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7.2 RF Block Diagram
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46
8. Schematic Diagram
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47
8.1 Key Pad
(LCD Interface & Earphone)
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48
8.2 Main Board
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48
8.2.1 Baseband(Ulysse & Omega)
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49
8.2.2 Memory Devices
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50
8.2.3 Audio & Peripheral Circuit
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51
8.2.4 I/O & B’ to
B Connector Interface
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51
8.3 RF Top Schematic
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52
8.3.1 RF Front End
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8.3.2 RF Main
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53
9. EXPLODED VIEW
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55
10. Replacement Parts list
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56
Table Of Contents
1. Introduction
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1. Introduction
LG-600 is a folder type mobile phone operated in the GSM Digital Cellular Mobile Radio System, which
is the Pan-European mobile cellular standard. LG-600 has the operation band of GSM 900 and DCS
1900. GSM Phase II features are fully supported and parts of the GSM Phase II+ features are also
supported. About the SIM Toolkit, LG-600 supports up to Class 3 including Class 1, 2. For speech
communication, LG-600 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.
2. Specification & Feature
2.1 Product Name
2.2 Supporting Standard (LG-600)
2.3 Main Parts : GSM Solution
Item Feature
Supporting Standard GSM 900/DCS Dual Band
E-GSM
Phase 2 and Phase 2+
SIM Toolkit : Class 2
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
Application Standard WAP : Yes
Item LG-600 Chip-set
Digital Baseband Hercules ROM 20 @ 26MHz
Analog Baseband Nausica
RF Chip SMARTI (single slot)
Model Design GPRS support LCD
LG-600 Folder type Not support Dual LCD
2. Specification & Feature
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2.4 Main Features
Category Feature Comments
Language English and other languages are
under this category.
SIM Toolkit Class 2
Pre-paid SIM Applied
Operation
Text Input(eZi Text) Language All available languages
2 languages per market
Predictive word input Ok
Phone Book 1 Phone Numbers for 1 Name 500 Phone Numbers
Voice Recording up to 90 seconds
Dialing up to 20 names
Schedule Manager Calendar, Day Scheduler,
Weekly Scheduler
Game Applied Five games
Clock Current time
World time
Alarm
Calculator General calculator
WAP YES (Version 1.1) AUR Browser
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2.5 HW Features
Category Feature Comments
Form Factor Folder
Battery 1. Capacity Unit(mm)
Standard : Li-ion, 600mAh Standard : 6.7 X 35.8 X 50
Extended : Li-ion, 1050 mAh (16g)
(Option, LG Chemical Ltd.) Extended : 11 X 43.1 X 66.7
28.1 X 44 X 80 (30g)
2. Packing Type
Standard : Soft Pack
Extended : Hard Pack
Size 80 X 44 X 25(mm)
Extended : 80 X 44 X 28.1(mm)
Weight 90.4 gram (Standard)
PCB Two PCB Keypad (4 Layers) 39 X 74.4 X 0.6(mm)
Main PCB (8 Layers) 40 X 76.2 X 0.8(mm)
Average Talk time current
240 (mA) Estimated
Standby current 4~5 (mA) Estimated
Talk time 2.5 hours @ 600mA Estimated
Standby time Up to 150 hours @ 600mA Estimated
Charging time 2 hours
RX sensitivity GSM 900 : -108 dBm Conducted emission test
DCS 1800 : -108 dBm
TX output power GSM 900 : +33 dBm Class4 (GSM)
DCS 1800 : +30 dBm Class0 (DCS)
SIM card type Plug-In SIM 3V/5V
Display Full Graphic type Hard Icon
Dual LCD Line : 9lines – 8 X 8
Main LCD 5lines – 8 X 12
Pixels : 128 X 90 5lines – 8 X 16
Size(Active) :28.758 X 23.385(mm) Deep blue
Ext.LCD
Pixels : 96 X 12
Size(Active) :25.9 X 7.42(mm)
Backlight : EL
Status Indicator Dual LED Red, Green
Key pad Alphanumeric Key : 12 Function Key :*
Flip Detection Key : 1 Navigation (4 Key)
Function Key : 9 Easy Key (O.K)
Side Key : 3 Soft Key, Soft2 Key
Total # of Keys : 25 SEND, END/PWR Key
Ant (Antenna) Fixed Type Snap In type
System connector 26 Pins With DTC contact 2 pins
Ear phone Jack 4 Pole 6 Pins (ø2.5mm) M±, R±
PC synchronization Applied
2. Specification & Feature
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Category Feature Comments
Memory Flash : 4Mbytes
SRAM : 512Kbytes
Speech coding FR, EFR, HR
Data & Fax Built-in
Vibrator Built-in Type : Coin
Buzzer Applied
Voice Dialing Up to 20 names
Voice Recording Up to 180 seconds
C- MIC Built-in
Receiver Built-in
Portable Handsfree Ear-Microphone
Travel Charger Built-in
Options Belt clip Some optional items may be
Cigarette Lighter Adapter Basic items depending on
Data communication Kit Circumstances.
Extended Battery(1,050mAh) Pack
Desktop Charger
Handsfree Car kit
Portable Handsfree (Ear-Phone)
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2.6 SW Features
Function Detail Item Comments
Display Main LCD/Front LCD 128 x 90 / 96 x 12(mm)
Backlight LCD, Keypad
Icons Soft Icons / Fixed Icons
Fonts Variable 8x8, 8x12, 10x16
Screen Display RSSI, Battery Status, Clock
Incoming/outgoing Call
Menu Access and operation
Language Options English and other languages are under this
category.
Quick Access Mode
Keypad Number of Keys 12 Numeric Keys
Send & End Key
4 Navigation Keys
1 Easy Key(O.K)
2 Soft Function Keys
1 Flip Detect Key
3 Side Keys
Key assignment Numeric, Alphabet, function keys
Special function keys Voice mail(hot key), …
Key Locking Applied
Key tone On/Off
International Access(+) Applied
Normal Dialed Number 10
Features Received Number 10
Missed Number 10
Scratch Pad Memory 1
Call Call Waiting Yes(network dependent)
Management Hold Call Yes(network dependent)
Swap Call Yes(network dependent)
Retrieve Call Yes(network dependent)
Conference Call Yes(network dependent)
Disconnect Yes
Answer key Any key/ Flip key
Speaker Phone Yes
Closed User Group Yes(network dependent)
Automatic Redial Yes
Calling Line Identification Calling Line Identification Presentation &
Restriction
Full Call divert Yes(network dependent)
2. Specification & Feature
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Function Detail Item Comments
Speed Dialing Yes
Last Number Redial Yes
Multi-party Call Yes(network dependent)
Voice Recording in call Yes
Voice Dialing Number of Voice Dial Max 20
Phone Book
Voice Tag Time 1.6 second
Network Network Selection Automatic/ Manual
Network List Display
DTMF DTMF Signaling
DTMF Enable & Disable
Audio Key Tone Volume Min 5 Level
Ring Tone Volume Min 5 Level
Ring Tone Pattern 31 Ring tones
Ring Type 1)Ring
2)Vibrate
3)Vibrate & Ring
4)Silent
Earpiece Volume Min 5 Level
Mute On& Mute Off
Cell Broadcast Read Cell Broadcast On/ Off
Cell Broadcast Topics SIM/ Phone
Cell Broadcast Message Same as number of language
Languages
Voice Memo Voice Recording Time Max 3 Minute
Phone Book Search
Search E-Mail
Add Entry
Add E-Mail
Group
Speed Dials
Delete All
Memory
Copy SIM to Phone
Phone to SIM
SDN
Own number
Call Charge Call Duration
Call Costs
Cost Settings Call cost limit
Set tariff
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Function Detail Item Comments
Supplementary Call Forwarding All Incoming Calls
On Busy
No Reply
Not-reachable
Call Barring All Outgoing Calls
Outgoing International Calls
Outgoing International Calls except to
Home Country
All incoming Calls
Incoming Calls when roaming
SIM Plug-In Type
Service Provider Lock & Network
Lock
Auto Detection 3V & 5V Detection
SIM Toolkit Class 2
Prepaid SIM Operation
Short Message Write Message Send/Store
Outbox Send/Save/Delete/Delete All
Inbox Reply/Forward/Return Call/
Extract Number/Delete/
Delete All
Status Report Delete/Delete All
Call Voicemail
Cell Broadcast CB Option(On/Off)/Read
Topics(SIM/Phone)/Languages
Memory Status
Settings Status Report/Message Type
Expiry Period/SMS center
Voice center/Alert
Multi-Band Support of Multi-band & Mode GSM 900
E-GSM
DCS1800
Miscellaneous Development & Test Facility
Function Field Test Facility
Display Software Version
Display Serial Number
Text Input Language Available languages vary in each
country
eZi text Predictive word input
2. Specification & Feature
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Function Detail Item Comments
Scheduler View Day
Make Schedule
Call
Memo
Anniversary
Delete
View All
WAP WAP1.1 AUR Browser
World Time Setting Local Time
Number of Selectable Cities 24 Cities
Calculator Operator Addition
Subtraction
Multiplication
Division
Unit Converter Length Conversion
Weight Conversion
Volumes Conversion
Surface Conversion
PC Sync Phone Book Sync
Game Corsair
Crazy Race
Diamond King
Stone Axe
Black Jack
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3. Keypad Arrangement & Functions
3.1 Keypad Arrangement
3.1.1 Front of the phone
1 Earpiece
2 Active Folder
3 Display Screen
4 Soft Left Key
5 Record Key
6 Confirm Key
7 Send Key
8 Up/Down Side Key
9 Ear Microphone
10 Star Key
11 Call Indicator Light
12 Soft Right Key
13 Navigation Keys
14 END/PWR Key
15 Numeric Keys
16 Hash Key
17 Microphone
1
2
2
5
9
8
3
4
12
11
3
4
13
14
15
16
17
6
10
7
1
1 Front LCD Screen
2 Hard Icons
3 Call Indicator Light
4 Antenna
3.2 Functions of Keys
3. Keypad Arrangement & Functions
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The following shows key components of the phone.
Key Description
Soft Left Key / Soft Right Key
Each of these keys performs the function indicated by
the text on the display immediately above it.
WAP Hotkey
You can directly connect to WAP by pressing this key.
Navigation Keys
You can use these keys to scroll through names, phone numbers,
menus or setting options. In a standby mode, if you press up/down
navigation keys, you can see the "Dialed Number” “Received Number”
and “Missed Number”.
Send Key
You can dial a phone number and answer a call.
If you press this key without entering a number, your phone shows the
most recently dialled number.
Numeric Keys
These keys are used mainly to dial in standby mode
and enter numbers or characters in editing mode.
When you press these keys for a long time.
• Used to call your voice mail box by .
• Used to call for international call by .
• Used to call speed dials by ~ .
Star Key
Used to enter to vibration mode by pressing this key
for a long time.
Hash Key
Used to lock key by pressing this key for a long time.
END/PWR Key
Used to end or reject a call. This key is also used as Power Key.
You can power on and off by pressing this key for a long time.
Record Key
You can use voice memo by pressing this key for a long time.
Up/Down Side Key
You can control the volume of key tone in standby mode and also control
the volume during a call.
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4. Disassembly/Reassembly
4.1 Disassembly
4.1.1 Disassembly of Upper Case/Lower Case
1. Push the battery locker, and then remove the battery cover.
2. Pull the battery downward and lift it up.
3. Use your thumb to pull down the battery-locker hard.
Figure 4-1. Removing the Battery cover and the Battery
Upper Case
Lower Case
Battery Cover
4. Disassembly/Reassembly
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4. Loosen the 4 screws as shown below.
5. Turn over the phone facing up and detach lower case carefully from the hooks on the top of upper
case.
Figure 4-2. Disassembling of Upper and Lower Case
4.1.2 Disassembly of Lower-Case Components
1. Turn over the lower case and remove the circuit boards.
2. Then, pull out volume BTN and Recording BTN.
Figure 4-3. Removing the Volume BTN and Recording BTN
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3. Use a small ‘-’ type driver to push away a pin from the hinge.
4. Hold the display case and pull out the right hinge first and then left one.
Figure 4-4. Removing the display case
5. Use a pin to lift up the microphone to the direction as shown in fig. 4-5.
Figure 4-5. Removing the Microphone
4. Disassembly/Reassembly
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4.1.3 Assembly of Lower Case
1. When assembling the display case to the lower case, make sure only circuit board, pin and a side
of the display cases are assembled first as shown below.
2. Insert left side first when assembling hinges.
3. Use a driver to push the pin to the right for secure locking.
Figure 4-6. Reassembling Lower Case
1
2
3
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4.1.4 Disassembly of PCB
1. PCB is easily detached from the upper case by hand.
Assembly:
- When placing Backup-battery onto Battery-hold, make sure the battery poles are facing the
right direction.
Figure 4-7. Placing Backup-battery
2. Use a '-'type driver to push away the antenna hook, and while pushing the hook, turn and pull out
the antenna from the case.
Assembly: Push the Antenna into the hole until it clicks.
Figure 4-8. Removing the Antenna
5. Data Kit & Test Method
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5. Data Kit & Test Method
5.1 Data Kit
5.1.1 Download Equipment
1. Data Kit
2. Desktop or Notebook PC
3. Download Monitor Program
4. LG-600 mobile phone
5.1.2 Data Kit Download Procedure
■ General Purpose:
This document gives a guideline for upgrading software of LG-600 GSM/DCS Dual-band mobile
phone using UART port.
■ Download Environment:
In order to download software of LG-600, the following working environments should be
prepared:
LG-600 Data Link Kit, DK-10G that is connected to COM1 or COM2 serial port in the Desktop or
Notebook PC.
LG-600 Data Kit Download Monitor Program that is copied to Desktop PC or Notebook PC.
Target SW* downloaded to LG-600 mobile phone.
Note: Target SW* means any necessary software to be downloaded to the mobile phone.
Warning
You MUST use the Data Link Kit (DK-10G) and UART Download Monitor program that are
provided from LGE. Otherwise downloading process won't work properly.
■ Download Procedure
1. Unzip LG-600 UART Download monitor program (monitor632.zip) in PC.
2. Execute monitor632.exe. And then select the "Target" Menu shown in Fig1. Then, choose
"Connect" in the Target Menu.
<Figure 1>
3. A table will be displayed as shown in Fig 2. Then press the arrow-button and choose a correct
serial port. And press "OK" button.
<Figure 2>
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5. Data Kit & Test Method
4. As the following window shown in Fig 3 is displayed, connect LG-600 Phone to Data Link Kit,
DK-10G and power on LG-600. If the connection is succeeded, the following screen will show
the contents as shown in Fig 4.
<Figure 3>
<Figure 4>
5. Click on "Flash" on the top menu and select "Erase and Program Appli Only" item as shown
in Fig 5.
<Figure 5>
6. Finally choose the target SW that you want to download. And then you can see the following
window in Fig 6.
<Figure 6>
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