Table of Contents
Advertisement
1. INTRODUCTION.................................. 5
1.1 Purpose ...................................................... 5
1.2 Regulatory Information ............................... 5
2. PERFORMANCE ..................................7
2.1 System Overview.........................................7
2.2 Usable environment.....................................8
2.3 Radio Performance......................................8
2.4 Current Consumption.................................14
2.5 RSSI BAR ..................................................14
2.6 Battery BAR ...............................................15
2.7 Sound Pressure Level ...............................16
2.8 Charging ....................................................16
3. TECHNICAL BRIEF............................17
3.1 General Description ...................................17
3.2 GSM Mode.................................................19
3.3 UMTS Mode...............................................23
3.5 Off-chip RF Components ...........................25
3.6 Digital Baseband(DBB/MSM6245) ............34
3.7 Subsystem(MSM6245) ..............................37
3.8 Power Block...............................................45
3.9 External memory interface.........................50
3.10 H/W Sub System .....................................52
3.11 Main Features..........................................68
4. TROUBLE SHOOTING.......................73
4.1 RF Component ..........................................73
4.2 SIGNAL PATH_UMTS RF .........................75
4.3 SIGNAL PATH_GSM RF ...........................76
4.4 Checking VC-TCXO Block.........................77
4.5 Checking Front-End Module Block ............79
4.6 Checking UMTS Block...............................81
4.7 Checking GSM Block.................................86
4.8 Checking Bluetooth Block..........................92
4.9 Power ON Troubleshooting .......................94
4.10 Charger Troubleshooting .........................96
4.11 USB Troubleshooting...............................99
4.12 SIM Detect Troubleshooting ..................100
4.13 Camera Troubleshooting .......................102
4.14 Keypad Backlight Troubleshooting ........105
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Table Of Contents
- 3 -
4.15 Main LCD Troubleshooting ....................106
4.16 Receiver Path ........................................107
4.17 Headset path .........................................109
4.18 Speaker phone path ..............................111
4.19 Main microphone ...................................113
4.20 Headset microphone..............................115
4.21 Vibrator ..................................................117
5. DOWNLOAD .....................................118
5.1 Introduction ..............................................118
5.2 Downloading Procedure ..........................118
5.3 Troubleshooting Download Errors ..........131
5.4 Caution ....................................................136
6. BLOCK DIAGRAM ...........................137
6.1 GSM & UMTS RF Block ..........................137
6.2 Interface Diagram ....................................139
7. CIRCUIT DIAGRAM..........................143
8. BGA IC PIN MAP..............................149
9. PCB LAYOUT ...................................153
Program (Hot Kimchi) ...................159
10.1 Configuration of HOT KIMCHI ...............159
10.2 How to use HOT KIMCHI.......................162
11. Factory Test Mode .........................164
11.1 Factory Test Mode.................................164
11.2 WCDMA Test Mode...............................164
11.3 GSM Test Mode.....................................165
PART LIST ..................................... 167
12.1 EXPLODED VIEW ................................ 167
<Mechanic component> ....................... 169
<Main component> ............................... 172
12.3 Accessory ............................................. 188
LGE Internal Use Only
Advertisement
Table of Contents
Troubleshooting
