LG U8120 Cell Phone Manuals

Manuals and User Guides for LG U8120 Cell Phone. We have 3 LG U8120 Cell Phone manuals available for free PDF download: Service Manual, User Manual

LG U8120 Service Manual (271 pages)

Brand: LG | Category: Cell Phone | Size: 28.09 MB

Table of Contents
2
1 Introduction

5
- Purpose
  5
- Regulatory Information
  5
- Abbreviations
  7
2 Performance

9
- System Overview
  9
- Usable Environment
  10
- Radio Performance
  10
- Current Consumption
  16
- Rssi
  16
- Battery Bar
  16
- Sound Pressure Level
  17
- Charging
  18
3 Technical Brief

19
- Digital Baseband(DBB)& Multimedia Processor
  19
  - General Description
    19
  - Hardware Architecture
    20
  - External Memory Interface
    24
  - RF Interface
    25
  - SIM Interface
    27
  - UART Interface
    27
  - GPIO (General Purpose Input/Output) Map
    28
  - Usb
    30
  - Irda Interface
    32
  - Folder ON/OFF Operation
    33
  - Power on Sequence
    34
  - Key Pad
    35
- GAM Hardware Subsystem
  36
  - General Description
    36
  - Block Description
    37
- Camera & Camera FPC Interface
  39
- Camera Position Detection
  41
- Camera Regulator
  41
- Display & LCD FPC Interface
  42
- Main LCD Backlight Illumination
  45
- Sub LCD Backlight Illumination
  46
- Keypad Illumination
  47
- Camera Flash Illumination
  48
- LCD Module
  49
- Analog Baseband (ABB) Processor
  50
  - Overview of Audio Path
    50
  - Audio Signal Processing & Interface
    51
  - Audio Mode
    53
  - Voice Call
    54
  - MIDI (Ring Tone Play)
    58
  - MP3 (Audio Player)
    59
  - Video Telephony
    60
  - Audio Main Component
    61
  - Gpadc(General Purpose ADC) and AUTOADC2
    63
  - Charger Control
    64
  - Fuel Gauge
    65
  - Battery Temperature Measurement
    66
  - Charging Part
    67
- Voltage Regulation
  70
  - Internal Regulation
    70
  - External Regulation
    70
- General Description
  72
- GSM Mode
  74
  - Receiver
    74
  - Transmitter
    79
- WCDMA Mode
  81
  - Receiver
    81
  - Transmitter
    84
  - Frequency Generation
    88
4 Trouble Shooting

90
- Power on Trouble
  90
- USB Trouble
  92
- SIM Detect Trouble
  93
- Keypad Trouble
  94
- Camera Trouble
  95
- Main LCD Trouble
  97
- Sub LCD Trouble
  98
- Keypad Backlight Trouble
  99
- Folder ON/OFF Trouble
  101
- Camera Detection Trouble
  103
- Camera Flash Trouble
  105
- Audio Trouble Shooting
  107
- Charger Trouble Shooting
  122
- RF Component
  125
- Procedure to Check
  127
- Checking Common Power Source Block
  128
  - Step 1
    129
  - Step 2
    130
  - Step 3
    131
  - Step 4
    132
  - Checking Regular Part
    135
- Checking VCXO Block
  136
- Checking Ant. SW Module Block
  141
- Checking Antenna Switch Block Input Logic
  142
  - Mode Logic by TP Command
    142
  - Checking Switch Block Power Source
    144
- Checking WCDMA Block
  150
  - Checking
    151
  - Checking Ant. SW Module
    151
  - Checking Control Signal
    151
  - Checking RF TX Level
    154
  - Checking PAM Block
    157
  - Checking RX I,Q
    161
  - Checking RX Level
    163
  - Checking GSM Block
    165
    
    Checking Regulator Circuit
    166
    
    Checking VCXO Block
    166
    
    Checking Ant. SW Module
    166
    
    Checking Control Signal
    167
    
    Checking RF Tx Path
    169
    
    Checking RF Rx Path
    174
5 Block Diagram

179
- GSM & WCDMA RF Block
  179
- Interface Diagram
  181
- Detailed Interface Signal
  183
6 Disassembly Instruction

185
7 Download

193
- Download Environment Setup
  193
8 Calibration

206
- General Description
  206
- XCALMON Environment
  206
  - H/W Environment
    206
  - S/W Environment
    206
  - Configuration Diagram of Calibration Environment
    206
- Calibration Explanation
  207
  - Overview
    207
  - Calibration Items
    207
  - EGSM 900 Calibration Items
    208
  - DCS 1800 Calibration Items
    213
  - WCDMA Calibration Items
    216
  - Baseband Calibration Item
    224
- Program Operation
  225
  - XCALMON Program Overview
    225
  - XCALMON Icon Description
    226
  - Calibration Procedure
    229
  - Calibration Result Message
    231
9 Circuit Diagram

234
10 Pcb Layout

243
11 Exploded View & Replacement Part List

247
- Exploded View
  247
- Replacement Parts
  248
  - Mechanic Component
    248
  - Main Component
    251
- Accessory
  270

LG U8120 User Manual (131 pages)

Brand: LG | Category: Cell Phone | Size: 8.25 MB

Table of Contents
5
Emergency Services and Safety Precautions
11
Getting Started
15
Using the Battery, Charger and USIM Card
15
Getting to Know Your LG U8120
21
Familiarise Yourself with Its Features
21
Your Handset's Home Screen
23
Display Information
24
Your Handset's Keys and Navigation
25
Function of Keys When Phone Is Idle
26
General Functions
27
Turning Your Handset on
27
Turning Your Handset off
27
Access Codes
27
Barring Password
28
Making and Answering Calls
29
Entering Text
32
Using the ABC Mode
33
Menu Tree
36
New Message
37
Text Message
37
Multimedia Message
37
Email
37
Inbox
40
Drafts
48
Outbox
48
Mailbox
50
Templates
50
Emoticons
51
Settings
51
Text Message
51
Multimedia Message
52
Calling
54
Video Calls
54
Call History
55
Missed Calls
56
Call Divert
57
Call Duration
58
Fixed Dial Numbers
59
Call Barring
59
Call Reject
61
Multimedia
64
Video Player
64
Audio Player
67
Image Viewer
69
Video Camera
71
Camera
72
Contacts
74
Add New
74
Search
74
Group
74
Speed Dials
76
Clear Contacts
76
Service Dial Numbers
76
Copy All
76
Move All
77
Own Number
77
Settings
77
Applications
78
My Applications
78
Download Applications
78
Settings
80
Browser
82
Home
82
Bookmarks
84
Go to URL
84
Security Certificates
85
Settings
85
Organiser
88
Calendar
88
Secret Memo
94
Tools
96
Quick Menu
96
Alarm Clock
98
World Time
99
Temperature
99
Volume
99
Velocity
102
Date Finder
103
Timers
103
Voice Recorder
104
Server Sync
104
Connect
106
Settings
106
Profiles
106
Handset
109
Time
109
Daylight Saving
110
Screen
110
Backlight
110
Clock Display
111
Network
113
Preferred List
113
Access Points
113
Security
114
Change Codes
115
Connectivity
116
Memory Status
116
Language
116
Reset Settings
116
Troubleshooting
119
Accessories
121
Glossary
123
Index
127

LG U8120 User Manual (131 pages)

Brand: LG | Category: Cell Phone | Size: 8.37 MB

Limited Warranty
2
What this Warranty Covers
2
What this Warranty Does Not Cover
2
Table of Contents
5
Emergency Services and Safety Precautions
11
Getting Started
15
General Functions
27
Menu Tree
36
Messages
37
New Message
37
Text Message
37
Multimedia Message
37
Email
37
- Contacts
  38
- Search
  38
- Group
  38
- Speed Dials
  38
- Organiser
  39
- Calendar
  39
- Memo
  39
- Secret Memo
  39
- Troubleshooting
  118
- Accessories
  118
- Glossary
  118
- Index
  118

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LG U8120 Cell Phone Manuals

LG U8120 Service Manual (271 pages)

Table of Contents

1 Introduction

2 Performance

3 Technical Brief

4 Trouble Shooting

5 Block Diagram

6 Disassembly Instruction

7 Download

8 Calibration

9 Circuit Diagram

10 Pcb Layout

11 Exploded View & Replacement Part List

LG U8120 User Manual (131 pages)

Table of Contents

LG U8120 User Manual (131 pages)

Table of Contents

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