LG KS360 Service Manual

LGE Internal Use Only Copyright © 2008 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 KS360 series Component
Block diagram... .....................................19
3.2 Baseband Processor (BBP)
Introduction ............................................20
3.3 Power management IC ..........................28
3.4 Power ON/OFF ......................................32
3.5 SIM interface..........................................33
3.6 Micro SD external memory Interface .....34
3.7 Memory ..................................................35
3.8 LCD Display ...........................................36
3.9 Keypad Switching & Scanning ...............39
3.10 Touch KEY...........................................41
3.11 Keypad back-light illumination .............43
3.12 LCD back light illumination...................44
3.13 ISP(Image Signal Processor)...............45
3.14 JTAG & ETM interface connector ........46
3.15 Audiot ...................................................47
3.16 Charging circuit ....................................49
3.17 BLUETOOTH .......................................50
3.18 FM Radio .............................................52
3.19 18pin Multi Media Interface
connector .............................................53
3.20 General Description .............................55
3.21 Receiver part........................................57
3.22 Transmitter part....................................58
3.23 RF synthesizer .....................................59
3.24 DCXO...................................................60
3.25 Front End Module control.....................60
3.26 Power Amplifier Module .......................61
4. PCB layout......................................62
4.1 Main PCB component placement ..........62
5. Trouble shooting............................66
5.1 Trouble shooting test setup....................66
5.2 Power on Trouble...................................67
5.3 Charging trouble ....................................70
5.4 LCD display trouble................................72
5.5 Camera Trouble .....................................74
5.6 Receiver & Speaker trouble ...................76
5.7 Microphone trouble ................................78
5.8 Ear-MIc Jack Detection trouble..............79
5.9 Vibrator trouble ......................................80
5.10 Keypad back light trouble.....................82
5.11 SIM & USD trouble...............................84
5.12 Touch trouble .......................................88
5.13 Qwerty Key trouble ..............................90
5.14 Trouble Shooting of Receiver Part.......92
5.15 Trouble Shooting of Transmitter Part...96
6. Download & S/W upgrade...............103
6.1 S/W download setup ............................103
6.2 Download program user guide.............104
6.3 Multi-Download Program Setting .........105
7. CIRCUIT DIAGRAM ......................107
8. BGM PIN MAP...............................117
9. PCB LAYOUT................................121
10. RF Calibration ............................127
10.1 Test Equipment Setup .......................127
10.2 Calibration Step .................................127
11. Stand-alone Test ........................133
11.1 Test Program Setting .........................133
11.2 Tx Test ...............................................135
11.3 Rx Test...............................................136
12. ENGINEERING MODE ................137
13. EXPLODED VIEW &
REPLACEMENT PART LIST ......139
13.1 Exploded View ...................................139
13.2 Replacement Parts ............................141
Table Of Contents

LG KS360 Specifications

General

Display type	TFT
Display diagonal	2.4 \
Display resolution	240 x 320 pixels
Display number of colors	262144 colors
Internal memory	15 MB
Rear camera resolution (numeric)	2 MP
USB 2.0 ports quantity	1
Multimedia Messaging Service (MMS)	Multimedia Messaging Service (MMS) is a standard way to send messages that include multimedia content to and from a mobile phone over a cellular network
Ringer type	Polyphonic
Talk time (2G)	5 h
Battery capacity	800 mAh
Standby time (2G)	444 h
Form factor	Slider
Text prediction system type	T9
Personal info management (PIM)	Alarm clock, Calendar, Notes
Keyboard layout	QWERTY
Bluetooth version	2.0+EDR
Data network	EDGE, GPRS

Weight and Dimensions

Depth	16.8 mm
Width	51 mm
Height	101.5 mm
Weight	111.5 g