Table Of Contents - LG KE600 - Cell Phone Service Manual

1. INTRODUCTION ...............................7
1.1 Purpose .................................................. 7
1.2 Regulatory Information............................ 7
1.3 ABBREVIATION ..................................... 9
2. PERFORMANCE .............................11
2.1 H/W Features.........................................11
2.2 Technical specification...........................12
3. TECHNICAL BRIEF ........................19
3.1 KE600 / KE608 Component
Block diagram. .......................................19
3.2 Baseband Processor (BBP)
Introduction ............................................21
3.3 Power management IC ..........................33
3.4 Power ON/OFF ......................................39
3.5 SIM interface..........................................40
3.6 Memory ..................................................41
3.7 LCD Display ...........................................42
3.8 Keypad Switching & Scanning ...............43
3.9 Keypad back-light illumination ...............44
3.10 LCD back light illumination...................46
3.11 Battery current consumption monitor ...48
3.12 JTAG & ETM interface connector ........48
3.13 Audio....................................................49
3.14 USB charging circuit ............................52
3.15 FM radio with RDS function .................53
3.16 BLUETOOTH .......................................54
3.17 Micro SD external memory card slot....58
3.18 12pin Multi Media Interface connector .60
3.19 General Description .............................62
3.20 Receiver part........................................64
3.21 Transmitter part....................................64
3.22 RF synthesizer .....................................66
3.23 VCTCXO ..............................................66
3.24 Front End Module control.....................67
3.25 Power Amplifier Module .......................67
3.26 Dual Mode Operation...........................68
4. PCB layout......................................69
4.1 Main & Sub PCB component
placement ..............................................69

Table Of Contents

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5. Trouble shooting............................76
5.1 Trouble shooting test setup....................76
5.2 Power on Trouble...................................76
5.3 Charging trouble ....................................80
5.4 LCD display trouble................................82
5.5 Camera Trouble .....................................83
5.6 Speaker trouble......................................86
5.7 Receiver trouble.....................................88
5.8 Microphone trouble ................................90
5.9 Vibrator trouble ......................................92
5.10 Keypad back light trouble.....................94
5.11 SIM card trouble...................................96
5.12 MicroSD trouble ...................................98
5.13 Bluetooth trouble..................................99
5.14 FM Radio trouble ...............................101
5.13 RF PART TROUBLESHOOTING ......103
6. Download & S/W upgrade...............116
6.1 S/W download setup ............................116
6.2 Download program user guide.............117
7. CIRCUIT DIAGRAM ......................121
8. PCB LAYOUT ................................127
9. RF Calibration ..............................133
9.1 Test Equipment Setup .........................133
9.2 Calibration Steps..................................133
10. Stand-alone Test ........................139
11. ENGINEERING MODE ................143
12. EXPLODED VIEW &
REPLACEMENT PART LIST ..... 145
12.1 Exploded View .................................. 145
12.2 Replacement Parts ............................147
12.3 Accessory ......................................... 167