Table Of Contents - LG C3100 Service Manual

1. INTRODUCTION
1.1 Purpose ................................................ 2
1.2 Regulatory Information ......................... 2
1.3 Abbreviations ........................................ 4
2. PERFORMANCE
2.1 H/W Features ....................................... 6
2.2 Technical Specification ......................... 7
3. TECHNICAL BRIEF
3.1 Transceiver (SI4205, U401) ............... 11
3.2 Power Amplifier Module (RF3133, U400) .. 16
3.3 13 MHz Clock ..................................... 17
3.4 Power Supplies for RF Circuits .......... 17
3.5 Digital Main Processor (AD6525, U100) ... 18
3.6 Analog Main Processor (AD6521, U101) .. 23
3.7 Power Management IC (ADP3522, U301) . 27
3.8 Memory (U300) .................................. 28
3.9 LCD and LCD Backlight ..................... 28
3.10 Keypad Switches and Key Backlight
Illumination ......................................... 30
3.11 Microphone ......................................... 31
3.12 Dual Mode Speaker and MIDI IC ....... 32
3.13 Headset Jack Interface ....................... 32
4. TROUBLE SHOOTING
4.1 RF Components ................................. 35
4.2 RX Trouble ......................................... 36
4.3 TX Trouble .......................................... 43
4.4 Power On Trouble .............................. 51
4.5 Charging Trouble ................................ 53
4.6 LCD Trouble ....................................... 55
4.7 Receiver Trouble ................................ 56
4.8 Speaker Trouble ................................. 57
4.9 MIC Trouble ........................................ 59
4.10 Vibrator Trouble .................................. 60
4.11 Key Backlight LED Trouble ................ 62
4.12 SIM Detect Trouble ............................ 63
4.13 Ear Jack Trouble ................................ 64
5. DISASSEMBLY INSTRUCTION

Table Of Contents

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2 6. DOWNLOAD AND CALIBRATION
6.1 Download ........................................... 72
6.2 Calibration .......................................... 79
7. BLOCK DIAGRAM
6
8. CIRCUIT DIAGRAM
9. PCB LAYOUT
10. ENGINEERING MODE
10.1 BB Test [MENU 1] .......................... 91
10.2 RF Test [MENU 2] .......................... 93
10.3 MF Mode [MENU 3] ......................... 93
10.4 Trace option [MENU 4] ..................... 94
10.5 Call Timer [MENU 5] ...................... 94
10.6 Fact. Reset [MENU 6] .................... 94
10.7 S/W version [MENU 7] .................. 94
11. STAND ALONE TEST
11.1 What's the Standalone Test? .......... 95
11.2 Standalone Test Equipment Setup ...... 96
11.3 HW Test : Software for Standalone
Test Setup ...................................... 97
11.4 Tx Stand alone Test Setting ........... 98
11.5 Rx Stand alone Test Setting ........ 100
12. AUTO CALIBRATION
12.1 Overview ...................................... 102
12.2 Equipment List ............................. 102
12.3 Equipment Setup .......................... 103
12.4 AGC for RX .................................. 104
12.5 APC for TX ................................... 104
12.6 ADC .............................................. 105
12.7 How to do calibration .................... 105
13. EXPLODED VIEW &
REPLACEMENT PART LIST
13.1 Exploded View ............................ 107
13.2 REPLACEMENT PARTS ............ 109
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