Table Of Contents - LG H990ds Service Manual

1. INTRODUCTION................................................... 3
1.1 Purpose
1.2 Regulatory Information
2. PERFORMANCE................................................... 4
2.1 Band Specification
2.2 HW Features
2.3 RSSI Display
2.4 Current consumption
2.5 Battery bar
2.6 SW Specification
3. TROUBLE SHOOTING..........................................12
3.1 Checking XO Block
3.2 Transceiver DC Power Supply Circuit
3.3 DC-DC Block
3.4 FEMiD Block
3.5 LTE PART
3.6 WCDMA PART
3.7 GSM PART
3.8 BT/WiFi PART
3.9 GPS PART
3.10 NFC PART
3.11 Power
3.12 Charger
3.13 Audio
3.14 Display
3.15 Camera
3.16 Sensor
3.17 Motor
3.18 Hall IC
3.19 USB
3.20 SIM Card interface trouble
4. BLOCK DIAGRAM.............................................. 94
5. CIRCUIT DIAGRAM............................................. 107
LGE Internal Use Only
6. BGA PIN MAP.................................................................. 140
7. PCB LAYOUT.................................................................. 143
8. HIDDEN MENU................................................................... 149
9. DOWNLOAD..................................................................... 153
10. CALIBRATION................................................................ 154
11. DISASSEMBLE GUIDE.................................................. 155
12. EXPLODED VIEW.................................................. 159
13. REPLACEMENT PART LIST.................................... 160
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Table Of Contents

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