LG LG-P880 User manual

Internal Use Only
Service Manual
LG-P880
Date: June, 2012 / Issue 1.0

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Only for training and service purposes
LGE Internal Use Only
Table Of Contents
1. INTRODUCTION..................................................................... 3
1.1 Purpose ........................................................................................................3
1.2 Regulatory Information.........................................................................3
1.3 Abbreviations.............................................................................................5
2. PERFORMANCE...................................................................... 7
2.1 Product Name............................................................................................7
2.2 Supporting Standard..............................................................................7
2.3 Main Parts : GSM Solution.....................................................................7
2.4 HW Features ...............................................................................................8
2.5 SW Features............................................................................................. 10
2.6 HW SPEC. ................................................................................................. 13
2.7 P880 Figures............................................................................................ 25
3.CIC_AND SERVICE CENTER.................................................. 26
3.1 CIC FAQ...................................................................................................... 26
4. TROUBLE SHOOTING .......................................................... 43
4.1 RF Component ....................................................................................... 43
4.2 SIGNAL PATH........................................................................................... 44
4.3 Checking TCXO Block........................................................................... 47
4.4 Checking WCDMA Block .................................................................... 49
4.5 Checking GSM Block............................................................................ 56
4.6 Wi/BT/FM Module............................................................................... 63
4.7 NFC trouble.............................................................................................. 65
4.8 GPS trouble.............................................................................................. 69
4.9 Power ON Troubleshooting............................................................... 73
4.10 Switching Charger Troubleshooting........................................... 76
4.11 USB Trouble shooting ....................................................................... 79
4.12 Audio troubleshooting..................................................................... 82
4.13 (8M) Camera troubleshooting....................................................... 92
4.14.(1.26M) Camera troubleshooting................................................. 95
4.15 Main LCD trouble................................................................................ 98
4.16 SIM detect Trouble shooting........................................................102
4.17 Side Key Troubleshooting .............................................................105
4.18 Vibrator Troubleshooting ..............................................................107
4.19 Motion/Gyro sensor(MPU-6050) trouble shooting.............110
4.20 Compass sensor trouble................................................................113
4.21 Proximity Sensor on/o trouble.................................................115
4.22 Illumination Sensor on/o trouble............................................118
4.23 HDMI Troubleshooting...................................................................121
4.24 Touch trouble .....................................................................................122
5. DOWNLOAD.......................................................................124
6. BLOCK DIAGRAM...............................................................144
7. CIRCUIT DIAGRAM ............................................................ 165
8. BGA PIN MAP ....................................................................182
9. PCB LAYOUT.......................................................................192
10. CALIBRATION...................................................................194
11. HIDDEN MENU................................................................. 214
12. EXPLODED VIEW & REPLACEMENT PART LIST ............. 230
12.1 EXPLODED VIEW................................................................................230
12.2 Replacement Parts ...........................................................................231
12.3 Accessory .............................................................................................273

- 3 - Copyright © 2012 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
1. INTRODUCTION
1.1 Purpose
This manual provides the information necessary to repair, calibration, description and download
the features of this model.
1.2 Regulatory Information
A. Security
Toll fraud, the unauthorized use of telecommunications system by an unauthorized part (for
example, persons other than your company’s employees, agents, subcontractors, or person
working on your company’s behalf) can result in substantial additional charges for your
telecommunications services. System users are responsible for the security of own system. There
are may be risks of toll fraud associated with your telecommunications system. System users are
responsible for programming and configuring the equipment to prevent unauthorized use. The
manufacturer does not warrant that this product is immune from the above case but will prevent
unauthorized use of commoncarrier telecommunication service of facilities accessed through or
connected to it. The manufacturer will not be responsible for any charges that result from such
unauthorized use.
B. Incidence of Harm
If a telephone company determines that the equipment provided to customer is faulty and possibly
causing harm or interruption in service to the telephone network, it should disconnect telephone
service until repair can be done. A telephone company may temporarily disconnect service as long
as repair is not done.
C. Changes in Service
A local telephone company may make changes in its communications facilities or procedure. If
these changes could reasonably be expected to affect the use of the phones or compatibility with
the net work, the telephone company is required to give advanced written notice to the user,
allowing the user to take appropriate steps to maintain telephone service.
1. INTRODUCTION

- 4 - Copyright © 2012 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
1. INTRODUCTION
D. Maintenance Limitations
Maintenance limitations on the phones must be performed only by the manufacturer or its authorized
agent. The user may not make any changes and/or repairs expect as specifically noted in this manual.
Therefore, note that unauthorized alternations or repair may affect the regulatory status of the system
and may void any remaining warranty.
E. Notice of Radiated Emissions
This model complies with rules regarding radiation and radio frequency emission as defined by local
regulatory agencies. In accordance with these agencies, you may be required to provide information
such as the following to the end user.
F. Pictures
The pictures in this manual are for illustrative purposes only; your actual hardware may look slightly
different.
G. Interference and Attenuation
A phone may interfere with sensitive laboratory equipment, medical equipment, etc. Interference
from unsuppressed engines or electric motors may cause problems.
H. Electrostatic Sensitive Devices
ATTENTION
Boards, which contain Electrostatic Sensitive Device (ESD), are indicated by the sign. Following
information is ESD handling:
• Service personnel should ground themselves by using a wrist strap when exchange system boards.
• When repairs are made to a system board, they should spread the floor with anti-static mat which is
also grounded.
• Use a suitable, grounded soldering iron.
• Keep sensitive parts in these protective packages until these are used.
• When returning system boards or parts like EEPROM to the factory, use the protective package as
described.

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1. INTRODUCTION
Copyright © 2007 LG Electronics. Inc. All right reserved.
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1.3 Abbreviations
For the purposes of this manual, following abbreviations apply:
Offset Phase Locked LoopOPLL
Light Emitting DiodeLED
Low Drop OutputLDO
Liquid Crystal DisplayLCD
Intermediate FrequencyIF
International Portable User IdentityIPUI
Global System for Mobile CommunicationsGSM
General Purpose Interface BusGPIB
Gaussian Minimum Shift KeyingGMSK
Flexible Printed Circuit BoardFPCB
Electrostatic DischargeESD
Electrical Erasable Programmable Read-Only MemoryEEPROM
Digital Signal ProcessingDSP
dB relative to 1 milli wattdBm
Digital Communication SystemDCS
Digital to Analog ConverterDAC
Constant Current – Constant VoltageCC-CV
Bit Error RatioBER
BasebandBB
Automatic Power ControlAPC
1. INTRODUCTION

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1. INTRODUCTION
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only 7/140
Wireless Application Protocol
WAP
Voltage Control Temperature Compensated Crystal OscillatorVCTCXO
Voltage Controlled OscillatorVCO
Universal Asynchronous Receiver/TransmitterUART
Time Division Multiple AccessTDMA
Time Division DuplexTDD
Travel AdapterTA
Side Tone Masking RatingSTMR
Pseudo SRAMPSRAM
Static Random Access MemorySRAM
Sending Loudness RatingSLR
Subscriber Identity ModuleSIM
Surface Acoustic WaveSAW
Real Time ClockRTC
Root Mean SquareRMS
Receiving Loudness RatingRLR
Radio FrequencyRF
Public Switched Telephone NetworkPSTN
Phase Locked LoopPLL
Programmable Gain AmplifierPGA
Printed Circuit BoardPCB
Power Amplifier ModulePAM
1. INTRODUCTION

2. PERFORMANCE
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LGE Internal Use Only
LG-P880 Product SPEC
3
2.1 Product Name
LG-P880 : WCDMA 850/900/1900/2100+GSM850/EGSM/DCS/PCS
(HSUPA 5.8Mbps(cat6)/HSDPA 21Mbps(cat14)/GPRS Class12/EDGE Class12)
2.2 Supporting Standard
Item Feature Comment
Supporting Standard
WCDMA(FDD1,2,8)/EGSM/GSM850/DCS1800/PCS1900
with seamless handover
Phase 2+(include AMR)
SIM Toolkit : Class 1, 2, 3, C-E
Frequency Range
WCDMA(FDD1) TX : 1920 – 1980 MHz
WCDMA(FDD1) RX : 2110 – 2170 MHz
WCDMA(FDD2) TX : 1850 – 1910 MHz
WCDMA(FDD2) RX : 1930 – 1990 MHz
WCDMA(FDD8) TX : 880 – 915 MHz
WCDMA(FDD8) RX : 925 – 960 MHz
EGSM TX : 880 – 915 MHz
EGSM RX : 925 – 960 MHz
GSM850 TX : 824 – 849 MHz
GSM850 RX : 869 – 894 MHz
GSM900 TX : 880 – 915 MHz
GSM900 RX : 925 – 960 MHz
DCS1800 TX : 1710 – 1785 MHz
DCS1800 RX : 1805 – 1880 MHz
PCS1900 TX : 1850 – 1910 MHz
PCS1900 RX : 1930 – 1990 MHz
Application Standard
2.3 Main Parts : GSM Solution
Item Part Name Comment
AP Chip AP33 : nVIDIA
CP Chip XMM6260 : IMC
2. PERFORMANCE
2.1 Product Name
2.2 Supporting Standard
LG-P880 : WCDMA 850/900/1900/2100+GSM850/EGSM/DCS/PCS
(HSUPA 5.8Mbps(cat6)/HSDPA 21Mbps(cat14)/GPRS Class12/EDGE Class12)
2.3 Main Parts : GSM Solution
LG-P880 Product SPEC
3
2.1 Product Name
LG-P880 : WCDMA 850/900/1900/2100+GSM850/EGSM/DCS/PCS
(HSUPA 5.8Mbps(cat6)/HSDPA 21Mbps(cat14)/GPRS Class12/EDGE Class12)
2.2 Supporting Standard
Item
Feature
Comment
Supporting Standard
WCDMA(FDD1,2,8)/EGSM/GSM850/DCS1800/PCS1900
with seamless handover
Phase 2+(include AMR)
SIM Toolkit : Class 1, 2, 3, C-E
Frequency Range
WCDMA(FDD1) TX : 1920 – 1980 MHz
WCDMA(FDD1) RX : 2110 – 2170 MHz
WCDMA(FDD2) TX : 1850 – 1910 MHz
WCDMA(FDD2) RX : 1930 – 1990 MHz
WCDMA(FDD8) TX : 880 – 915 MHz
WCDMA(FDD8) RX : 925 – 960 MHz
EGSM TX : 880 – 915 MHz
EGSM RX : 925 – 960 MHz
GSM850 TX : 824 – 849 MHz
GSM850 RX : 869 – 894 MHz
GSM900 TX : 880 – 915 MHz
GSM900 RX : 925 – 960 MHz
DCS1800 TX : 1710 – 1785 MHz
DCS1800 RX : 1805 – 1880 MHz
PCS1900 TX : 1850 – 1910 MHz
PCS1900 RX : 1930 – 1990 MHz
Application Standard
2.3 Main Parts : GSM Solution
Item Part Name Comment
AP Chip AP33 : nVIDIA
CP Chip XMM6260 : IMC

2. PERFORMANCE
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Only for training and service purposes
LGE Internal Use Only
LG-P880 Product SPEC
4
2.4 HW Features
Item Feature Comment
Form Factor DOP type
Battery
1) Capacity
Standard : Li-Ion Polymer, 2000mAh
2) Packing Type : Soft Pack
Size Standard :
132.4 x 68.1 x 9.19 mm
Weight 130 g(TBD) With Battery
PCB Any Layer, 12 Layers , 0.75t
Stand by time 2G Up to 588 hrs
3G Up to 588 hrs
@ Paging Period 5 (2G)
@ DRX 7 (3G)
Charging time 4 hrs @ Power Off / 2000mAh
Talk time 2G Up to 430 min
3G Up to 430 min
@ Tx=Max(2G)
@ Tx = 12dBm (3G)
RX sensitivity WCDMA(FDD1) : -106.7 dBm
WCDMA(FDD2) : -106.7 dBm
WCDMA(FDD8) : -106.7 dBm
EGSM : -105 dBm
GSM850 : -105 dBm
DCS 1800 : -105 dBm
PCS 1900 : -105 dBm
TX output power WCDMA/
GSM/
GPRS
WCDMA :
24dBm/3.84MHz,+1/-
3dBm
EGSM : 33dBm
GSM850 : 33 dBm
DCS 1800 : 30 dBm
PCS 1900 : 30 dBm
GPRS
compatibility
EDGE EGSM : 26 dBm
GSM850 :26dBm
DCS 1800 : 25 dBm
PCS 1900 : 25 dBm
Class3(WCDMA)
Class4 (EGSM)
Class4 (GSM850)
Class1 (PCS)
Class1 (DCS)
GPRS
Class
12
E2 (GSM900)
E2 (PCS)
E2 (DCS)
EDGE compatibility EDGE Class 12
SIM card type Plug-In SIM
2.85V /1.8V
2.4 HW Features
LG-P880 Product SPEC
4
2.4 HW Features
Item Feature Comment
Form Factor DOP type
Battery
1) Capacity
Standard : Li-Ion Polymer, 2000mAh
2) Packing Type : Soft Pack
Size Standard :
132.4 x 68.1 x 9.19 mm
Weight 130 g(TBD) With Battery
PCB Any Layer, 12 Layers , 0.75t
Stand by time 2G Up to 588 hrs
3G Up to 588 hrs
@ Paging Period 5 (2G)
@ DRX 7 (3G)
Charging time 4 hrs @ Power Off / 2000mAh
Talk time
2G Up to 430 min
3G Up to 430 min
@ Tx=Max(2G)
@ Tx = 12dBm (3G)
RX sensitivity WCDMA(FDD1) : -106.7 dBm
WCDMA(FDD2) : -106.7 dBm
WCDMA(FDD8) : -106.7 dBm
EGSM : -105 dBm
GSM850 : -105 dBm
DCS 1800 : -105 dBm
PCS 1900 : -105 dBm
TX output power WCDMA/
GSM/
GPRS
WCDMA :
24dBm/3.84MHz,+1/-
3dBm
EGSM : 33dBm
GSM850 : 33 dBm
DCS 1800 : 30 dBm
PCS 1900 : 30 dBm
GPRS
compatibility
EDGE EGSM : 26 dBm
GSM850 :26dBm
DCS 1800 : 25 dBm
PCS 1900 : 25 dBm
Class3(WCDMA)
Class4 (EGSM)
Class4 (GSM850)
Class1 (PCS)
Class1 (DCS)
GPRS
Class
12
E2 (GSM900)
E2 (PCS)
E2 (DCS)
EDGE compatibility EDGE Class 12
SIM card type Plug-In SIM
2.85V /1.8V

2. PERFORMANCE
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LG-P880 Product SPEC
5
Display Main LCD (HD LCD)
TFT Main LCD(4.57”, 1280X720)
Brightness :
Min. 380nit
Built-in Camera 8M Camera, 1.26M secondary
Status Indicator No
Keypad Function Key : 3
Side Key : 3
Function Key : Home,
Back, menu,
Side Key :
Volume up,down, power
key,
ANT Main : LDS(Laser Direct Structure) type
Sub : DPA type(Directed Print Antenna)
NFC : Attached Battery cover
System connector 5 Pin Micro USB 2.0 HS
Ear Phone Jack 3.5Phi, 4 Pole, Stereo
PC synchronization Yes
Memory(AP) eMMC : 16GB
LP-DDR2 : 8Gb
Speech coding FR, EFR, HR, AMR,AMR-WB
Data & Fax Built in Data & Fax support
Vibrator Built in Vibrator
BlueTooth V4.0 BLE
MIDI(for Buzzer
Function)
72 Poly, MP3 Ringtone
Music Player MP3/ WMA/AAC/AAC+/WAV/AC3
Video Player MPEG4, H.263, H.264 @ Full HD 30fps/ Divx
HD
Camcorder MPEG4, H.264, H.263 @ 1080p 30pfs
Voice Recording Yes
Speaker Phone mode
Support
Yes
Travel Adapter Yes
CDROM Yes
Stereo Headset No
Data Cable Yes
T-Flash
(External Memory)
Yes Up to 64GB

2. PERFORMANCE
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LG-P880 Product SPEC
6
2.5 SW Features
Item Feature Comment
RSSI 0 ~ 5 Levels
Battery Charging 0 ~ 21 Levels Android 3.0 (ICS)
Key Volume 0 ~ 7 Level
Audio Volume 1 ~ 15 Level
Time / Date Display Yes
Multi-Language Yes English, Espanol, Franch, Korea,
Chinese
Quick Access Mode Phone / Space / Browser / Menu
PC Sync Yes
Speed Dial Yes Voice mail center -> 1 key
Profile Yes not same with feature phone
setting
CLIP / CLIR Yes
Phone Book Name / Number / Email / Chat Id /
Website / Postal addresses /
Organizations / Groups /
BirthdayNotes / Ringtone
There is no limitation on the
number of items.
It depends on available memory
amount.
Last Received
Number
Yes There is no limitation on the
number of items.
It depends on available memory
amount.
Last Missed Number Yes There is no limitation on the
number of items.
It depends on available memory
amount.
Search by Number
/ Name
Name / Number
Group Yes There is no limitation on the
number of items.
It depends on available memory
amount.
Fixed Dial Number Yes
Service Dial Number No
Own Number Yes Read only
(add/edit/delete are not
supported)
Voice Memo
Yes
Support voice recorder
Call Reminder No Missed call popup
Network Selection Automatic
2.5 SW Features
LG-P880 Product SPEC
6
2.5 SW Features
Item Feature Comment
RSSI 0 ~ 5 Levels
Battery Charging 0 ~ 21 Levels Android 3.0 (ICS)
Key Volume 0 ~ 7 Level
Audio Volume 1 ~ 15 Level
Time / Date Display Yes
Multi-Language Yes English, Espanol, Franch, Korea,
Chinese
Quick Access Mode Phone / Space / Browser / Menu
PC Sync Yes
Speed Dial Yes Voice mail center -> 1 key
Profile Yes not same with feature phone
setting
CLIP / CLIR
Yes
Phone Book Name / Number / Email / Chat Id /
Website / Postal addresses /
Organizations / Groups /
BirthdayNotes / Ringtone
There is no limitation on the
number of items.
It depends on available memory
amount.
Last Received
Number
Yes There is no limitation on the
number of items.
It depends on available memory
amount.
Last Missed Number Yes There is no limitation on the
number of items.
It depends on available memory
amount.
Search by Number
/ Name
Name / Number
Group Yes There is no limitation on the
number of items.
It depends on available memory
amount.
Fixed Dial Number Yes
Service Dial Number No
Own Number Yes Read only
(add/edit/delete are not
supported)
Voice Memo Yes Support voice recorder
Call Reminder No Missed call popup
Network Selection Automatic