Table Of Contents - LG -E400f Service Manual

1. INTRODUCTION ..................................................................... 3
1.1 Purpose ........................................................................................................3
1. Regulatory Information .........................................................................3
2. PERFORMANCE ...................................................................... 5
.1 Product Name ............................................................................................5
. Supporting Standard ..............................................................................5
.3 Main Parts : GSM Solution .....................................................................6
.4 HW Features ...............................................................................................6
.5 SW Features ................................................................................................9
.6 HW SPEC. ................................................................................................. 13
3. CIC_FAQ ................................................................................ 20
3.1 FAQ Inquiry List ...................................................................................... 0
4. TROUBLE SHOOTING .......................................................... 33
4.1 RF Component ....................................................................................... 33
4. SIGNAL PATH ........................................................................................... 35
4.3 Checking TCXO Block ........................................................................... 38
4.4 Checking GSM TX Module(GSM PAM + ASM) Block ............... 41
4.5 Checking WCDMA Block .................................................................... 44
4.6 Checking GSM Block ............................................................................ 55
4.7 GPS/WIFI/BT RF Component ............................................................ 63
4.8 GPS/WIFI/BT SIGNAL PATH ................................................................ 65
4.9 GPS/WIFI/BT Trouble shooting ........................................................ 67
4.10 Power ON Trouble Shooting........................................................... 74
4.11 Charging Trouble Shooting ............................................................ 78
4.1 3MFF Camera Trouble Shooting ................................................... 81
4.13 Main LCD trouble ................................................................................ 84
4.14 Proximity Sensor on/off Trouble Shooting ............................... 86
4.15 Motion Sensor on/off Trouble Shooting ................................... 88
4.16 Compass Sensor on/off Trouble Shooting ............................... 90
4.17 DC Motor Trouble Shooting ........................................................... 93
4.18 Audio Troble .......................................................................................... 95
5. DOWNLOAD .......................................................................105
6.Block diagram ....................................................................125
LGE Internal Use Only

Table Of Contents

7. CIRCUIT DIAGRAM ............................................................132
8. BGA PIN MAP .....................................................................141
9. PCB LAYOUT .......................................................................147
10. CALIBRATION ...................................................................149
11. HIDDEN MENU .................................................................169
12. EXPLODED VIEW & REPLACEMENT PART LIST .............175
1.1 EXPLODED VIEW ................................................................................175
1. Replacement Parts ...........................................................................176
1.3 Accessory .............................................................................................01
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