LG GB108 Bedienungsanleitung
1
GB108
Service Manual
LG Electronics
2
Table Of Contents
1. INTRODUCTION………………..3
1.1 Purpose………………………………..3
1.2 Regulatory Information……………….3
2. PERFORMANCE………………...5
2.1 H/W Features………………………….5
2.2 S/W Features…………………………..6
3. TECHNICAL BRIEF……………11
3.1 Digital Main Processor(PMB7780)…..11
3.2 Power Amplifier Module(SKY)……...18
3.3 26 MHz Clock (DCXO)……………...21
3.4 RTC (32.768KHz Crystal)………...….22
3.5 LCD Interface……………………..….23
3.6 SIM Card Interface…………………...25
3.7 KEYPAD Interface……………………26
3.8 Battery Charging Block Interface……..27
3.9 RF Interface……………………….......28
3.10 Audio Interface………………………30
3.11 Key LED Interface…………………..34
3.12 Vibrator Interface……………………35
3.13 Memory Interface…………………...36
3.14 Power Block Interface………………37
3.15 FM Radio Interface……………….…39
4. TROUBLE SHOOTING…………41
4.1 RF Trouble……………………………41
4.2 TX Trouble……………………………47
4.3 Power On Trouble………………….…51
4.4 SIM Card Trouble…………………….54
4.5 Vibrator Trouble………………………56
4.6 Keypad Trouble…………………….…58
4.7 RTC Trouble…………………………..60
4.8 Key Backlight Trouble………………..62
4.9 LCM Backlight Trouble………………65
4.10 LCD Trouble…………………………..67
4.11 Microphone Trouble…………………...69
4.12 Receiver Trouble……………………….71
4.13 Speaker Trouble………………………..73
4.14 Headphone Trouble…………………….75
4.15 Charging Trouble……………………….79
4.16 FM Radio Trouble……………………...81
5. DOWNLOAD……………………….86
5.1 Download setup…………………………86
5.2 Download process ……………………..87
6. BLOCK DIAGRAM………………..91
7. CIRCUIT DIAGRMA………………92
8. BGA IN PIN Check………………....98
9. PCB LAYOUT………………………100
10.ENGINEERING MODE…………..102
11.CALIBRATION……………………105
11.1 Test equipment setup…………..……….105
11.2 Calibration steps ……………………....105
12. Stand alone test……………………107
12.1 Test Program Setting…………………...107
12.2 TX Test ………………………………..111
12.3 RX Test………………………………...112
13.EXPLODED VIEW&
REPLACEMENT PARTLIST…….….113
13.1 Exploded View…………………………...113
13.2 Replacement Part………………………...115
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1. INTRODUCTION
Purpose
This manual provides information necessary to repair, description and download the features of this
model.
1.2 Regulatory Information
A. Security
Toll fraud, the unauthorized use of telecommunications system by an unauthorized part(for example ,
persons other than your company’s employees, agents, subcontractors, or person working on your
company’s behalf) can result in substantial additional charges for your telecommunications services.
system users are responsible for the security of own system. There are may be risks of toll fraud
associated with your telecommunications system. System users are responsible for programming and
configuring the equipment to prevent unauthorized use .The manufacturer dose not warrant that this
product is immune from the above case but will prevent unauthorized use of common-carrier
telecommunications service of facilities accessed through or connected to it.
The manufacturer will not be responsible for any charges that result from such unauthorized use.
B. Incidence of Harm
If a telephone company determines that the equipment provided to customer is faulty and possibly
causing harm or interruption in service to the telephone network, it should disconnect telephone
service until repair can be done. A telephone company may temporarily disconnect service as long as
repair is not done.
C. Changes in Service
A local telephone company may make changes in its communications facilities or procedure. If these
changes could reasonably be expected to affect the use of the this phone or compatibility with the
network, the telephone company is required to give advanced written notice to the user, allowing the
user to take appropriate steps to maintain telephone service.
D. Maintenance Limitations
Maintenance limitations on this model must be performed only by the manufacturer or its authorized
agent . The user may not make any changes and/or repairs expect as specifically noted in this manual.
Therefore, note that authorized alternations or repair may affect the regulatory status of the system and
may void any remaining warranty.
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E. Notice of Radiated Emissions
This model complies with rules regarding radiation and radio frequency emission as defined by local
regulatory agencies. In accordance with these agencies, you may be required to provide information
such as the following to the end user.
F. Pictures
The pictures in this manual are for illustrative purposes only; your actual hardware may look slightly
different.
G. Interference and Attenuation
Phone may interfere with sensitive laboratory equipment, medical equipment, etc. Interference from
unsuppressed engines or electric motors may cause problems.
H. Electrostatic Sensitive Devices
ATTENTION
Boards, which contain Electrostatic Sensitive Devices(ESD),are indicated by the sign .
Following information is ESD handing:
. Service personnel should ground themselves by using a wrist strap when exchange system boards.
.When repairs are made to a system board , they should spread the floor with anti-static mat which is
also grounded .
.Use a suitable, grounded soldering iron .
. Keep sensitive parts in these protective packages until these are used.
.When returning system boards or parts like EEPROM to the factory, use the protective packages as
described.
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2. PERFORMANCE
H/W Features
Item Specifications etc
Solution EGOLD voice PMB7880 (ULC2) Infineon
pe Bar type
Antenna Type Internal (dual-Band)
Main Display 1.5＂ 128x128 CSTN/65k
Battery 800mAh Li-ion inner pack 800mAh: 54x34x4.9mm
Audio player MIDI ring tone, 16poly MIDI ring tone
Loud Speaker Yes
Memory Size 32Mb+4Mb No user memory
LMT (Lost Mobile Tracker) Yes
Weight 65g
Vibrator Shall support in built vibration alert
SIM Card Shall support SIM card both 1.8V and 3V.
KEY Back Light Yes
KEY Back Light color Blue
850 MHz/class 4 (2W)
850/1900
(N/A)
900 MHz/class 4 (2W) 900/1800
1800 MHz/class 1 (1W) 900/1800
Frequency
1900 MHz/class 1 (1W)
850/1900
(N/A)
Standby Time Shall support minimum test minutes as [min]
based on battery capacity of [mAh]
↑ 400 hrs & ↓ 2.1mA @ 800mAh (P.P.:
5)
Talk Time Shall support minimum test hours as [hrs] based on
battery capacity of [mAh]
↑ 5 hrs30min@800mAh (PCL: 10)
(Talk time = 95% Capacity / Talk
current)
RTC The real time clock shall be able to sustain for at least
[#hrs] after removing the battery.
LGE confirm to put 22uf capacitor for
RTC backup time
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S/W Features
Feature Detail Item Description
OS OSE Operating System Y
Speech Code FR,EFR,HR,AMR-NB Y
AMR code GSM Full Rate
3GPP Adaptive Multi Rate (AMR-NB)
Y
FM Radio Only
GB105,GB105a,GB105b,Gb107,GB107a,GB107b,GB108
-
MP3 Ring Tone MP3 decode N
Integrated hands free
speaker
Speaker phone mode Y
Key Tone Volume 6 Level (Include Mute) Y
Ring Tone Volume 6 Level (Include Mute) Y
Ring Tone 10 Midi Y
Call Alert type Ring, Vibrate, Ring & Vibrate, Ring after vibrate, Silent Y
Earpiece Volume 6 Level (Include Mute) Y
Audio
Mute Y
GSM dual band MS
900-1800
N Frequency Bands
PCS dual band MS
850-1900
Configuration is during software compile time. Y
Circuit N Date Service
Packet N
Infrared (IrDA) N
Bluetooth N
USB N
USB Mass storage N
Connectivity
RS232(UART) Only for Phone tool & download Y
Voice Recording N
Voice Command N
Voice Function
Answering machine N
RSSI 6 level (0~5Level) Y
Battery level 4 level (0~3Level) Y
RTC Date & Time Display Y
PLMN/Service Indicator Y
Quick Access Mode In
Idle
Profile/ SMS + Voice Mail Y
Display
Dimming Clock N
7
Dual Clock N
Home shortcut Display Shortcut icon in Idle Y
Last Dial Number Max : 20 records Y
Last Received Number Max : 20 records Y
Last Missed Number Max : 20 records Y
Scratch Pad Memory N
Call History
Call Duration Last Call time, Total Call Time Y
Last Call Charge Units N Call Cost
Total Charge Units N
Call Waiting Y
Call Swap Y
Call Retrieve Y
Auto Answer Y
Auto Redial Y
Calling Line Y
Full Call Divert Y
Speed Dialing Y
Last Number Redial Y
Multi Party Call Y
Call Management
ECT Explicit Call Transfer (4 + Send) Y
Automatic Network
Selection
Y
Manual Network Y
Preferred Network Y
Network
Network Service Status Y
DTMF Signaling Y DTMF
DTMF Enable & Disable Y
Read Cell Broadcast Y
On/Off setting Receive On/Off Y
Alert setting Y
Language setting Y
Cell Broadcast
Topics Setting Y
Entry Phone 300 + SIM Y
Field Name, Mobile, Home, Office Y
Copy ME <-> SIM Y
Move ME <-> SIM Y
Contacts(Phone
Book)
FDN Y
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SDN Y
Email Entry N
Picture ID N
Video Caller ID N
vCard N
Business Card Y
Delete Delete, Delete All(SIM or Phone), Multi Delete Y
CFU Call Forwarding Unconditional Y
CFB Call Forwarding on Mobile Subscriber Busy Y
CFNRy Call Forwarding on No Reply Y
CFNRc Call Forwarding on Mobile Subscriber Not Reachable Y
BAOC Barring of All Outgoing Calls Y
BOIC Barring of Outgoing International Calls Y
BOICexHC Barring of Outgoing International Calls except those directed
to the Home PLMN Country
Y
BAIC Barring of All Incoming Calls Y
BICRoam Barring of Incoming Calls when Roaming Outside the/Home
PLMN Country
Y
Supplementary Services
Conference Call Up to 5 calls + 1 Waiting Call Y
Plug in Type 3V & 1.8 V Y
SIM Lock Service Provider / Network Lock / Hard Lock Y
SIM
SIM Toolkit Class 3 Y
Read Message Y
Write and Edit Message Y
Send and Receive
Message
Y
Reply to Message Y
Forward Message Y
Extract Number from
Message
Y
Message Status Y
Message Unread Y
Settable Message
Center Number,
Reply Path and Validity
Y
Visible and Audible
Message Receive
Y
Short Message
Voice Mail Y
9
Settable Voice Mail
Center Number
Y
Message Protocol Normal, Fax, National Paging, X400,
ERMES, Voice
Y
Message Overflow
Indicator
Y
Message Center Number Y
Nokia Smart Message Not supported.
[Can be supported based on operator request]
N
Development & Test
Facility
Y
Field Test Facility Y
Display Software Version Y
IMEI Y
Restore Factory Setting Y
Miscellaneous
Function
Battery Charging Mode Y
Language Selectable Auto Language Y Text Input
Predictive word input T9 Y
Calendar MAX: 20 records (18 chars) Y
To Do N
Scheduler
Memo MAX: 10 records (80 chars) Y
Setting Local Time Y
Display Two
Cities Time
Dual Clock N
Daylight saving
World Time
NITZ Y
Unit converter Length, Weight, Volume, Surface,
Velocity, Temperature, User-defined
Y
Stop Watch Y
Calculator + - * / Y
Phone Book Sync Only For service Center Y PC Sync
Message Sync N
Game Will use Ruby＇s Game, 1 game Y
Emergency Call Y
Handset Lock Y
Security Code When Delete All Y
SIM Lock Y
Security
Keypad Lock Y
10
12/24 Hour Y
Calendar Y
Time Zone Y
Daylight saving Y
Alarm Manager Y
Dimming Clock N
Power-off Alarm Y
Real Time Clock
On Alarm Event Y
Mobile Tracking
software
For India, Asia Y Others
M-DOG For China Y
Micro SD Adapter N Accessory
Stereo Ear-mic without
hook switch
Ear-mic type Stereo without hook key.
Only FM play supports Stereo.
Y
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