LG Electronics - U250
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Date June 2007 Issue 1 0 Service Manual Model U250 KU250 Service Manual U250 KU250 LG umTS j 0 A o V 1 Q_D 2 abc 3 def 4 9 hi 5 jkl 6 mno 7 pq Q tuv 9 wx y z 0 9 wxyz Table Of Contents 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 4 LO generation and distribution circuits 25 3 5 Off chip RF Components 25 3 6 Digital Baseband DBB MSM6245 34 3 7 ...Click here to download the manual
Contents
Date June 2007 Issue 1 0 Service Manual Model U250 KU250 Service Manual U250 KU250 LG umTS j 0 A o V 1 Q_D 2 abc 3 def 4 9 hi 5 jkl 6 mno 7 pq Q tuv 9 wx y z 0 9 wxyz Table Of Contents 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 4 LO generation and distribution circuits 25 3 5 Off chip RF Components 25 3 6 Digital Baseband DBB MSM6245 34 3 7 ...Click here to download the manual
Contents
Date June 2007 Issue 1 0 Service Manual Model U250 KU250 Service Manual U250 KU250 LG umTS j 0 A o V 1 Q_D 2 abc 3 def 4 9 hi 5 jkl 6 mno 7 pq Q tuv 9 wx y z 0 9 wxyz Table Of Contents 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 4 LO generation and distribution circuits 25 3 5 Off chip RF Components 25 3 6 Digital Baseband DBB MSM6245 34 3 7 ...