Table Of Contents - LG KF510C 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 KF510 Functional Block diagram... ................19
3.2 Baseband Processor (BBP) Introduction .......20
3.3 Power management IC ..................................30
3.4 Power ON/OFF ..............................................36
3.5 SIM & uSD interface.......................................38
3.6 Memory ..........................................................40
3.7 LCD Display ...................................................41
3.8 Keypad Switching & Scanning .......................43
3.9 Keypad back-light illumination........................45
3.10 LCD back-light illumination...........................46
3.11 ALC ..............................................................48
3.12 Battery current consumption monitor ...........49
3.13 JTAG & ETM interface connector ................50
3.14 Audio ............................................................51
3.15 Multi port switch ...........................................53
3.16 Charging circuit.............................................54
3.17 FM radio & BLUETOOTH.............................55
3.18 Touch PAD...................................................58
3.19 18pin Multi Media Interface connector .........60
3.20 General Description .....................................62
3.21 Receiver part................................................65
3.22 Transmitter part............................................66
3.23 RF synthesizer .............................................67
3.24 VCTCXO ......................................................67
3.25 Front End Module control.............................68
3.26 Power Amplifier Module ...............................69
3.27 Mode Selection ............................................70
3.28 PAM Schematic............................................70
4. PCB layout............................................71
4.1 Main & Sub PCB component placement........71
5. Trouble shooting..................................75
5.1 Trouble shooting test setup............................75
5.2 Power on Trouble...........................................76
5.3 Charging trouble.............................................80
5.4 LCD display trouble........................................83
5.5 Camera Trouble .............................................85
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Only for training and service purposes

Table Of Contents

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5.6 Receiver & Speaker trouble ...........................87
5.7 Microphone trouble ........................................90
5.8 Vibrator trouble...............................................92
5.9 Keypad back light trouble...............................94
5.10 SIM & uSD trouble .......................................96
5.11 Touch pad trouble ........................................99
5.12 Trouble Shooting of Receiver Part .............101
5.13 Trouble Shooting of Transmitter Part .........107
6. Download & S/W upgrade .....................115
6.1 S/W download setup ....................................115
6.2 Download program user guide .....................116
7. Block Diagram....................................121
8. CIRCUIT DIAGRAM ............................123
9. BGM PIN MAP.....................................131
10. PCB LAYOUT....................................133
11. RF Calibration...................................143
11.1 Test Equipment Setup................................143
11.2 Calibration Step..........................................143
12. Stand-alone Test ..............................148
12.1 Test Program Setting .................................148
12.2 Tx Test .......................................................150
12.3 Rx Test.......................................................151
13. ENGINEERING MODE ......................152
14. EXPLODED VIEW & REPLACEMENT
PART LIST.........................................153
14.1 Exploded View ...........................................153
14.2 Replacement Parts.....................................155
14.3 Accessory.................................................. 175
LGE Internal Use Only