Text preview for : LG KE800.pdf part of LG KE800 LG Mobile Phone LG KE800 LG KE800.pdf
Back to : LG KE800.pdf | Home
Service Manual
Service Manual
KE800
Model : KE800
Date: January, 2007 / Issue 1.0
REVISED HISTORY
DATE ISSUE CONTENTS OF CHANGES S/W VERSION
13 DEC 2006 ISSUE 1 Initial Release
The information in this manual is subject to change without notice and should not be construed as a
commitment by LGE Inc. Furthermore, LGE Inc. reserves the right, without notice, to make changes to
equipment design as advances in engineering and manufacturing methods warrant.
This manual provides the information necessary to install, program, operate and maintain the KE800.
-3-
-4-
Table Of Contents
1. INTRODUCTION ...............................7 4.15 FM Radio trouble .................................53
1.1 Purpose .................................................. 7 4.16 TOUCH PAD Trouble shooting ............55
1.2 Regulatory Information............................ 7 4.17 Multimedia Microphone Trouble...........58
1.3 ABBREVIATION ..................................... 9 4.18 18pin Multi-Port Receptacle.................60
4.19 RF PART TROUBLESHOOTING ........64
2. PERFORMANCE .............................11
5. Block Diagram................................77
2.1 Hardware Features ................................11
2.2 Technical Specification ..........................12 5.1 Power Block Diagram ............................78
3. TECHNICAL BRIEF ........................15 6. SW Download ....................................79
3.1 Quad-Band RF EDGE Transceiver 6.1 Download setup .....................................79
(PMB6272, U602) ..................................15 6.2 Download procedure..............................80
3.2 Power Amplifier Module (PAM :
7. CIRCUIT DIAGRAM ........................85
SKY77340, U502) ..................................18
3.3 26 MHz Clock (VCTCXO, X601)............19 8. PCB LAYOUT ..................................97
3.4 Front End Module for Triband
(YGHF-S006T, FL601)...........................19 9. CALIBRATION ..............................109
3.5 Baseband Chip(PMB8876, U101)..........22 9.1 Calibration test equipment setup .........109
3.6 Audio......................................................23 9.2 Calibration procedure...........................110
4. Trouble Shooting ...........................25 10. EXPLODED VIEW &
4.1 Main & Sub PCB Components REPLACEMENT PART LIST ......115
Placement ..............................................25 10.1 Exploded View .................................. 115
4.2 Key PCB Components Placement .........28 10.2 Replacement Parts ............................117
4.3 FPCB Components Placement ..............29 10.3 Accessory ......................................... 141
4.4 Power On Trouble..................................30
4.5 Charging Trouble ...................................33
4.6 LCD Display Trouble..............................36
4.7 Camera Trouble .....................................38
4.8 Speaker Trouble ....................................40
4.9 Receiver Trouble....................................42
4.10 Microphone Trouble .............................43
4.11 Vibrator Trouble ...................................45
4.12 Keypad Backlight Trouble (EL driver) ..47
4.13 SIM Detect Trouble ..............................49
4.14 Bluetooth Trouble.................................51
-5-
-6-
1. INTRODUCTION
1. INTRODUCTION
1.1 Purpose
This manual provides the information necessary to repair, calibration, description and download the
features of the KE800.
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 you're 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. LGE does not warrant that
this product is immune from the above case but will prevent unauthorized use of common-carrier
telecommunication service of facilities accessed through or connected to it. LGE 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 KE800 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 the KE800 must be performed only at the LGE or its authorized agents.
The user may not make any changes and/or repairs expect as specifically noted in this manual.
Therefore, note that unauthorized alternations or repair may affect the regulatory status of the system
and may void any remaining warranty.
-7-
1. INTRODUCTION
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 Device (ESD), are indicated by the sign. Following
information is ESD handling: