Table Of Contents - LG GX300 Service Manual
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Also See for GX300:
- User manual (82 pages) ,
- Quick reference manual (11 pages) ,
- User manual (106 pages)
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1. INTRODUCTION .........................................................5
1.1 Purpose ....................................................................................5
1.2 Regulatory Information .....................................................5
1. Abbreviation ..........................................................................7
2. PERFORMANC ............................................................9
2.1 H/W Features .........................................................................9
2.2 Technical Specification. ....................................................11
3. TECHNICAL BRIEF .....................................................16
.1 GX00 Functional Block Diagram ................................16
. Power Management ..........................................................22
(SKY77547, U00, U02) ..................................................5
.5 Crystal(26 MHz, X100, X401) ..........................................7
.6 RF Subsystem of PMB8810 (U102, U402) ..................8
.7 MEMORY ................................................................................4
.8 Bluetooth module ..............................................................49
.9 Dual SIM Card Interface. ..................................................51
.10 LCD Interface. ....................................................................52
.11 Battery Charger Interface .............................................55
.12 Keypad Interface ..............................................................56
.1 Audio Front-End ...............................................................58
.14 Camera Interface(1.M Fixed Focus Camera) ........64
.15 Flash LED Driver ...............................................................66
.16 KEY BACLKLIGHT LED Interface ..................................67
.17 Vibrator Interface .............................................................68
4. TROUBLE SHOOTING ...............................................69
4.1 Trouble shooting test setup ...........................................69
4.2 RF Component ....................................................................70
4. RX Trouble .............................................................................72
4.4 TX Trouble .............................................................................78
4.5 Power On Trouble ..............................................................84
4.6 Charging Trouble................................................................87
4.7 Vibrator Trouble ..................................................................89
4.8 LCD Trouble ..........................................................................91
4.9 Camera Trouble ...................................................................95
4.10 Speaker Trouble ............................................................101
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Only for training and service purposes
Table Of Contents
4.11 Earphone Trouble .........................................................104
4.12 Receiver Trouble ............................................................107
4.1 Microphone Trouble ................................................... 110
4.14 SIM Card Interface Trouble ........................................112
4.15 KEY backlight Trouble .................................................114
4.16 Micro SD Trouble ...........................................................116
4.17 Bluetooth Trouble .........................................................118
4.18 FM Radio Trouble ..........................................................120
5. DOWNLOAD. ...........................................................122
6. BLOCK DIAGRAM ...................................................135
7. CIRCUIT DIAGRAM .................................................137
8. BGA Pin Map...........................................................143
9. PCB LAYOUT ...........................................................149
10. STAND ALONE TEST .............................................153
10.1 Introduction ...................................................................15
10.2 Setting Method .............................................................15
10. Tx Test. ...............................................................................155
10.4 Rx Test .............................................................................. 156
11. AUTO CALIBRATION .............................................157
11.1 Overview. .........................................................................157
11.2 Configuration of HotKimchi ......................................157
11. Description of Basic File .............................................158
11.4 Auto Calibration setup................................................159
11.5 Procedure ........................................................................160
11.6 AGC ....................................................................................162
11.7 APC ....................................................................................162
11.8 ADC ....................................................................................162
11.9 Target Power ...................................................................162
12. EXPLODED VIEW & REPLACEMENT
12.1 EXPLODED VIEW ........................................................... 16
12.2 Replacement Parts .......................................................165
12. Accessory .........................................................................189
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LGE Internal Use Only
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