LG LG-D325 User manual

Internal Use Only
Service Manual
LG-D325
Date: March, 2014 / Issue 1.0

- 2 - Copyright © 2014 LG Electronics. Inc. All right reserved.
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 Specications.............................................................................................5
2. PERFORMANCE...................................................................... 8
2.1 Product Name............................................................................................8
2.2 Supporting Standard..............................................................................8
2.3 Main Parts : GSM Solution.....................................................................8
2.4 HW Features ...............................................................................................9
2.5 HW SPEC ................................................................................................... 11
2.6 D325 Figures ........................................................................................... 23
3. TROUBLE SHOOTING .......................................................... 24
3.1 WCDMA Rx Part...................................................................................... 24
3.2 WCDMA Tx Part Trouble...................................................................... 49
3.3 GSM Rx Part Troubleshooting.......................................................... 81
3.4 GSM Tx Part Troubleshooting.........................................................117
3.5 Power .......................................................................................................126
3.6 Charging .................................................................................................130
3.7 USB TS ......................................................................................................132
3.8 Audio........................................................................................................133
3.9 3 AXIS Sensor........................................................................................147
3.10 Proximity Sensor...............................................................................150
3.11 Touch Sensor Trouble Shooting..................................................152
3.12 Vibrator Trouble Shooting.............................................................154
3.13 8M Main Camera TS .........................................................................156
3.14 Main LCD TS ........................................................................................159
3.15 BT/Wi TS .............................................................................................162
3.16 GPS TS....................................................................................................165
3.17 FM TS......................................................................................................168
4. DOWNLOAD.......................................................................170
5. BLOCK DIAGRAM..............................................................187
6. CIRCUIT DIAGRAM ............................................................198
7. BGA PIN MAP .....................................................................218
8. PCB LAYOUT.......................................................................224
9. CALIBRATION.....................................................................228
10. HIDDEN MENU.................................................................247
11. DISASSEMBLE GUIDE......................................................278
12. EXPLODED VIEW & REPLACEMENT PART LIST .............283
12.1 EXPLODED VIEW................................................................................283
12.2 Replacement Parts...........................................................................284
12.3 Accessory .............................................................................................310

- 3 - Copyright © 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
1. INTRODUCTION
1. INTRODUCTION
This manual provides the information necessary to repair, calibration, description and download the features
1.1 Purpose
1. Introduction
This
manual
provides
the
information
necessary
to
repair,
calibration,
description
and
download
the
features
of this model.
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
1.2 Regulatory Information
A. Security
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 common carrier
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 Ch i S i
C
.
Ch
anges
i
n
S
erv
i
ce
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.
D. Maintenance Limitation
Maintenance limitations on the phones m st be performed onl b the man fact rer or its a thori ed agent
Maintenance
limitations
on
the
phones
m
u
st
be
performed
onl
y
b
y
the
man
u
fact
u
rer
or
its
a
u
thori
z
ed
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 Emission
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
y y y
the following to the end user.
- 4 -

- 4 - Copyright © 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
1. INTRODUCTION
1. Introduction
F. Pictures
The pictures in this manual are for illustrative purposes only; your actual hardware may look slightly
different.
H. Electrostatic Sensitive Devices
A phone may interfere with sensitive laboratory equipment, medical equipment, etc. Interference from
unsuppressed engines or electric motors may cause problems.
G. Interference and Attenuation
ATTENTION
H.
Electrostatic
Sensitive
Devices
Boards, which contain Electrostatic Sensitive Device (ESD), are indicated by the sign. Following
information is ESD handling:
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.
- 5 -

- 5 - Copyright © 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
1. INTRODUCTION
1. Introduction
1.3 Specification
KEY FEATURES
• Android 4.4-(KitKat)
• 4.5” Touch Screen WVGA (480 x 800)
• 8MP AF with flash
• 3G Mobile Hotspot
ENHANCED USER EXPERIENCE
• Android 4.4
• Proximity Sensor – locks the touch screen and buttons while talking on the phone
• Motion Sensor – Electronic compass , Accelerometer and Gyroscope
• USB Charging via Computer
• Airplane Mode (RF Off)
DESIGN
• Sleek and Stylish Design
• 4.5“ WVGA LCD Screen
• Ca
p
acitive Touch Screen – Glass with fast and accurate res
p
onse
p
p
• Micro USB/Charging Port
- 6 -
1.3 Specication

- 6 - Copyright © 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
1. INTRODUCTION
1. Introduction
• 8MP AF with flash and Camcorder
CAMERA/VIDEO
• Camera Resolutions: 2560 x 1920, 2048 x 1536, 2240 x 1344 1280 x 960 1280 X 768 Pixels
• Image Editor: zoom, rotate, crop images
• Brightness, ISO, White Balance,* Color Effects, Timer
• Cheese shutter – take photo with voice command.
• Video Resolutions: 640 x 480 320 x 240 176 x 144 Pixels
MULTIMEDIA
• Music Player for MP3, WMA, and Unprotected AAC
• Stereo Sound via Headset or Bluetooth
• Music Library – Organized by Artists, Albums, Songs, and Playlists
•
Repeat and Shuffle Music Playback Modes
•
Repeat
and
Shuffle
Music
Playback
Modes
BLUETOOTH®
• Version: 4.0
• Supported Profiles: headset, hands-free, object push, advanced audio distribution (stereo), audio/video
remote control, file transfer, phone book access, message access, serial port
• Listen to Music with Optional Stereo Bluetooth Headset**
• Send User-Generated Pictures (JPEG) and Videos via Bluetooth Wireless Technology
*Depends on available memory.
**Accessories sold separately.
- 7 -
5MP AF with

- 7 - Copyright © 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
1. INTRODUCTION
VOICE/AUDIO
1. Introduction
• One-Touch Speakerphone*
• Speaker-Independent Voice Commands
• Voice-Activated Dialing
• Text to Speech
• MP3 Music Ringer Support
TOOLS & DATA
Android Apps: Alarm/Clock, Browser, Calculator, Calendar (Corporate or Google), Camera, Contacts,
Email, Gallery, Gmail, Google+, Maps, Messaging, Messenger, Music Player, Phone, Places, Play Books,
Play Movies, Play Music, Play Store, Talk, Video Player, Voice Recorder, Youtube
Navigation – spoken turn-by-turn directions showing real-time traffic
Wi-Fi Connectivity – IEEE 802.11 b/g/n
• A-GPS Support for Enhanced Location Accuracy
SPECIFICATIONS
• Technology: GSM/WCMDA
• Frequencies: GSM 850,900,1800,1900
• WCDMA 2100, 850
• Data Transmission: WCMDA, GPRS
• Dimensions: 127.2 x 66.8 x 9.55(mm)
• Display: 4.5" , WVGA (480 x 800) pixels
• Standard Battery: 2,040 [mAh]
ACCESSORIES
• Standard Battery
•
Travel Adapter and USB Cable
*
- 8 -
•
Travel
Adapter
and
USB
Cable
• Stereo Headset
WCDMA 2100, 900

2. PERFORMANCE
- 8 - Copyright © 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
2. PERFORMANCE
2.1 Product Name
LG-D325: WCDMA 900//2100+GSM850/EGSM/DCS/PCS (HSUPA 5.76Mbps(cat6)/HSDPA 21Mbps(cat14)/GPRS Class12/EDGE Class12)
2.2 Supporting Standard
LG-D325 Product SPEC
4
2.1 Product Name
LG-D325: WCDMA 900//2100+GSM850/EGSM/DCS/PCS (HSUPA 5.76Mbps(cat6)/HSDPA 21Mbps(cat14)/GPRS
Class12/EDGE Class12)
2.2 Supporting Standard
Supporting Standard
WCDMA(FDD1,8)/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(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
Digital Baseband MSM8210 : Qualcomm
Analog Baseband PM8110 : Qualcomm
RF Chip WTR2605 : Qualcomm
2.3 Main Parts : GSM Solution
LG-D325 Product SPEC
4
2.1 Product Name
LG-D325: WCDMA 900//2100+GSM850/EGSM/DCS/PCS (HSUPA 5.76Mbps(cat6)/HSDPA 21Mbps(cat14)/GPRS
Class12/EDGE Class12)
2.2 Supporting Standard
Supporting Standard
WCDMA(FDD1,8)/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(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
Digital Baseband MSM8210 : Qualcomm
Analog Baseband PM8110 : Qualcomm
RF Chip WTR2605 : Qualcomm

2. PERFORMANCE
- 9 - Copyright © 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
2.4 HW Features
LG-D325 Product SPEC
5
2.4 HW Features
List Type / Spec.
1. Phone Type DOP Type
2. Size 127.2 x 66.8 x 9.55 (mm)
3. Weight 126.6g
4. Battery 2,100mAh ( typ.), 2,040mAh(min) (Li-Ion)
5.Chipset MSM8210
6. Memory 4GB(EMMC) +1Gb(LPDDR2)
7. LCD
Size 4.5 inch
Dot 480(H) X 800(V)
Color 16.7M colors
Display Type Active matrix TFT, Transmissive Type
NTSC Typ. 70%
Contrast Ratio Typ. 1000:1
Pixel Pitch(mm) 0.0408 * RGB(V) * 0.1224(H) (208PPI)
8. Main Camera (5M)
Type CMOS image sensor
Resolution 2592(H) X 1944(V) pixels.
Frame Rate 30fps@QSXGA, 30fps@Full HD 1080P
60fps@HD 720P, 120fps@QVGA
View Angle 68°
Image Scaling Down 5M,3M,W3M,1M,W1M
Pixel x size 1.4um x1.4um

2. PERFORMANCE
- 10 - Copyright © 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LG-D325f Product SPEC
6
10. Audio
1) MIDI MIDI
2) Mono 18 X 10 X 3T Speaker
3) Receiver 13 X 07 X 2.7T Wideband Receiver
11. Bluetooth
Effective Distance 10M
Distance 0 m ~ 10 m (depend on
environment)
12. WLAN
standard IEEE 802.11 b/g/n
Throughput Max 40Mbps (SDIO Driver
performance)
depend on environment 0 ~ 50m (depend on environment)
13. GPS type A-GPS, GNSS