LG Electronics KS360 service manual Table Of Contents

Table Of Contents

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

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

4. PCB layout	62	13. EXPLODED VIEW &
		REPLACEMENT PART LIST		139
4.1 Main PCB component placement	62
		13.1	Exploded View	139
		13.2	Replacement Parts	141

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