LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
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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 KF600 Functional Block diagram.... .......19
3.2 Baseband Processor (BBP)
Introduction ............................................20
3.3 Power management IC ..........................32
3.4 Power ON/OFF ......................................37
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 ...............44
3.10 LCD back-light illumination ..................45
3.11 Battery current consumption monitor ...46
3.12 JTAG & ETM interface connector ........46
3.13 ISP(Image Signal Processor)...............47
3.14 Audio....................................................48
3.15 Multi port switch ...................................51
3.16 charging circuit .....................................52
3.17 FM radio & BLUETOOTH ....................53
3.18 18pin Multi Media Interface connector .56
3.19 Touchpad Interface ..............................58
3.20 General Description .............................59
3.21 Receiver part........................................61
3.22 Transmitter part....................................62
3.23 RF synthesizer .....................................63
3.24 VCTCXO ..............................................63
3.25 Front End Module control.....................64
3.26 Power Amplifier Module .......................65
3.27 Mode Selection ....................................66
3.28 PAM Schematic ...................................66
4. PCB layout......................................67
4.1 Main & Sub PCB component
placement ..............................................67
5. Trouble shooting............................71
5.1 Trouble shooting test setup....................71
5.2 Power on Trouble...................................72
5.3 Charging trouble ....................................75
5.4 LCD display trouble................................77
5.5 Camera Trouble .....................................79
5.6 Receiver & Speaker trouble ...................81
5.7 Microphone trouble ................................83
5.8 Vibrator trouble ......................................84
5.9 Keypad back light trouble.......................86
5.10 SIM & uSD trouble ...............................88
5.11 Touch pad trouble ................................91
5.12 Trouble Shooting of Receiver Part.......92
5.13 Trouble Shooting of Transmitter Part...98
6. Download & S/W upgrade...............107
6.1 S/W download setup ............................107
6.2 Download program user guide.............108
7. CIRCUIT DIAGRAM.......................111
8. BGM PIN MAP...............................117
9. PCB LAYOUT................................123
10. RF Calibration ............................129
10.1 Test Equipment Setup .......................129
10.2 Calibration Step .................................129
11. Stand-alone Test ........................135
11.1 Test Program Setting .........................157
11.3 Rx Test...............................................159
12. ENGINEERING MODE ................139
13. EXPLODED VIEW &
REPLACEMENT PART LIST ..... 141
13.1 Exploded View .................................. 141
13.2 Replacement Parts ............................143
13.3 Accessory ......................................... 165
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