Table Of Contents - LG KE800 Service Manual

1. INTRODUCTION ...............................7
1.1 Purpose .................................................. 7
1.2 Regulatory Information............................ 7
1.3 ABBREVIATION ..................................... 9
2. PERFORMANCE .............................11
2.1 Hardware Features ................................11
2.2 Technical Specification ..........................12
3. TECHNICAL BRIEF ........................15
3.1 Quad-Band RF EDGE Transceiver
(PMB6272, U602) ..................................15
3.2 Power Amplifier Module (PAM :
SKY77340, U502) ..................................18
3.3 26 MHz Clock (VCTCXO, X601)............19
3.4 Front End Module for Triband
(YGHF-S006T, FL601)...........................19
3.5 Baseband Chip(PMB8876, U101)..........22
3.6 Audio......................................................23
4. Trouble Shooting ...........................25
4.1 Main & Sub PCB Components
Placement ..............................................25
4.2 Key PCB Components Placement .........28
4.3 FPCB Components Placement ..............29
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

Table Of Contents

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4.15 FM Radio trouble .................................53
4.16 TOUCH PAD Trouble shooting ............55
4.17 Multimedia Microphone Trouble...........58
4.18 18pin Multi-Port Receptacle.................60
4.19 RF PART TROUBLESHOOTING ........64
5. Block Diagram................................77
5.1 Power Block Diagram ............................78
6. SW Download ....................................79
6.1 Download setup .....................................79
6.2 Download procedure..............................80
7. CIRCUIT DIAGRAM ........................85
8. PCB LAYOUT ..................................97
9. CALIBRATION ..............................109
9.1 Calibration test equipment setup .........109
9.2 Calibration procedure...........................110
10. EXPLODED VIEW &
REPLACEMENT PART LIST ......115
10.1 Exploded View .................................. 115
10.2 Replacement Parts ............................117
10.3 Accessory ......................................... 141