Equipment information:

LG U310 Mobile phone
Manufacturer:
LG
Model: U310
Date: 2006
Category: Radio, Communication
Group: Mobile phone
Description:
Information:
                                    

These manuals are available for the above equipment:

LG -- U310 -- Service Manual
File name: LG-3041-Manual-Page-1-Picture
Manual Type: Service Manual
Pages: 188
Size: 3.89 Mbytes (4079195 Bytes)
Language: english
Revision: 1
Manual-ID/Number:
Date: October 2006
Quality: Electronic document, no scan, very well readable.
Upload date:
MD5: 231c96a5ab28419812777560ff040aa8
ed2kID: 036cf4e06e88146a84390c70a904ef8b
Downloads: 271 since 15 January 2012
Information:
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 ...........................................14
2.7 Sound Pressure Level............................15
2.8 Charging ................................................16
3. TECHNICAL BRIEF ........................17
3.1 General Description ...............................17
3.2 GSM Mode.............................................20
3.3 WCDMA Mode.......................................23
3.4 LO Phase-locked Loop ..........................26
3.5 Off-chip RF Components .......................28
3.6 Digital Baseband(DBB/MSM6250A) ......35
3.7 Hardware Architecture ...........................36
3.8. Subsystem(MSM6250A).......................38
3.9. External memory interface ....................41
3.10. H/W Sub System.................................42
3.11 LG-U310 Main features........................66
4. TROUBLE SHOOTING ...................72
4.1 RF Component.......................................72
4.2 SIGNAL PATH .......................................73
4.3 Checking VCTCXO Block ......................75
4.4 Checking Ant. SW Module Block ...........78
4.5 Checking WCDMA Block .......................81
4.6 Checking GSM Block .............................87
4.7 Bluetooth RF Block ................................95
4.8 Power ON Trouble .................................97
4.9 USB Trouble ..........................................99
4.10 SIM Detect Trouble ............................100
4.11 Key Sense Trouble ............................101
4.12 Camera Trouble .................................102
4.13 Main LCD Trouble..............................103
4.14 Folder ON/OFF Trouble .....................105
4.15 Camera Direction Detection Trouble..106
4.16 Trans Flash Trouble...........................107
4.17 Audio Trouble Shooting .....................108
4.18 Charger Trouble Shooting..................118
5. DOWNLOAD .................................121
5.1 Introduction ..........................................121
5.2 Downloading Procedure.......................121
5.3 Troubleshooting Download Errors .......135
5.4 Caution.................................................140
6. BLOCK DIAGRAM........................141
6.1 GSM & WCDMA RF Block...................141
6.2 Interface Diagram ................................142
7. Circuit Diagram ............................143
8. pcb layout .....................................150
9. Calibration & RF Auto
Test Program ................................155
9.1 Configuration of HOT KIMCHI .............155
9.2 How to use HOT KIMCHI.....................159
9.3 Example for using HOT KIMCHI ..................160
10. EXPLODED VIEW &
REPLACEMENT PART LIST ..... 163
10.1 EXPLODED VIEW ............................ 163
10.2 Replacement Parts
.................... 165
........................... 169 10.3 Accessory ......................................... 187
LG-3041-Manual-Page-1-Picture
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