LG LG-H815 User manual
MODEL : LG-H815
Internal Use Only
MOBILE PHONE
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS” IN THIS MANUAL
Date: May, 2015 / Issue 1.0
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Copyright ⓒ2015 LG Electronics. Inc. All right
reserved. Only training and service purposes
LGE Internal Use Only
Table Of Contents
1. INTRODUCTION................................................ 3
1.1 Purpose
1.2 Regulatory Information
2. PERFORMANCE................................................... 4
2.1 Band Specification
2.2 HW Features
2.3 RSSI Display
2.4 Current consumption
2.5 Battery bar
2.6 SW Specification
3. TROUBLE SHOOTING..........................................12
3.1 XO Block
3.2 Transceiver DC Power Supply Circuit
3.3 DC-DC Block
3.4 ASM Block
3.5 GSM Part
3.6 WCDMA Part
3.7 LTE Part
3.8 BT/WiFi Part
3.9 GPS
3.10 NFC
3.11 Power
3.12 USB
3.13 Hall IC
3.14 Sensor
3.15 Display
3.16 Main Camera
3.17 Front Camera
3.18 Motor
3.19 Audio
3.20 FM Radio
4. BLOCK DIAGRAM…........................................... 58
5. CIRCUIT DIAGRAM............................................ 69
6. BGA PIN MAP............................................................ 95
7. PCB LAYOUT…........................................................... 96
8. HIDDEN MENU.......................................................... 103
9. DOWNLOAD…........................................................... 106
10. CALIBRATION.......................................................... 107
11. DISASSEMBLE GUIDE............................................. 108
12. EXPLODED VIEW……………………………………….. 109
13. REPLACEMENT PART LIST..…………………………. 110
2
Copyright ⓒ2015 LG Electronics. Inc. All right
reserved. Only 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
This material is prohibited to share and release to unauthorized person, in accordance with the regulations, LG Electronics, Civil / criminal
responsibility in accordance with the relevant provisions violate.
B. Precautions for repair
•In case of Disassembly or Assembly to repair product, be careful of a product failure caused by RF signals and Static electricity.
•When using Magnetic tool for the Phone's SVC repair, you should check affect the Electric parts according to effect of Magnet.
•When fastening the screw, be careful not to damage the head of screw and even product.
C. Attention
Boards, which contain Electrostatic Sensitive Device (ESD), are indicated by the sign.
Following information is ESD handling:
•Service personal should ground themselves by using a wrist, strap when exchange system board.
•When repair 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 board or parts like EEPROM to the Factory, use the protective package as described.
33
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2. PERFORMANCE
2.1 Band Specification
Support Band TX Freq (MHz) RX Freq (MHz)
WCDMA(FDD1) 1920 – 1980 2110 – 2170
WCDMA(FDD2) 1850 - 1900 1930 - 1990
WCDMA(FDD5) 824 – 849 869 – 894
WCDMA(FDD8) 880 – 915 925 – 960
EGSM 880 – 915 925 – 960
GSM850 824 – 849 869 – 894
DCS1800 1710 – 1785 1805 – 1880
PCS1900 1850 – 1910 1930 – 1990
LTE FDD1 1920 – 1980 2110 – 2170
LTE FDD2 1850 – 1910 1930 – 1990
LTE FDD3 1710 – 1785 1805 – 1880
LTE FDD4 1710 – 1755 2110 – 2155
LTE FDD5 824 – 849 869 – 894
LTE FDD7 2500 – 2570 2620 – 2690
LTE FDD8 880 – 915 925 – 960
LTE FDD17 704 – 715 734 – 745
LTE FDD20 832 – 862 792 – 821
LTE FDD28 703 – 748 758 – 803
4
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2. PERFORMANCE
2.2 HW Features
List Type / Spec.
1. Phone Type DOP Type
2. Size 148.9 x 76.1 x 9.8mm (Metallic Battery Cover)
148.9 x 76.1 x 10.1mm(Leather Battery Cover)
3. Weight 155g (Metallic Battery Cover)
157g (Leather Battery Cover)
4. Battery 3,000mAh(Typ) (Li-Ion)
5.Chipset MSM8992, WTR3925, PM8994, PMI8994, WCD9330
6. Memory 3GB(SDRAM DDR3) + 32GB eMMC
7. LCD Size 5.5 inch
Display Type Transmissive type / normally black / IPS
Color 16M colors
Resolution 2560x1440 pixels, 538PPI
8. Touch Type Capacitive type
9. Main Camera (16M) Type CMOS image sensor
Resolution 5312(H) X 2988(V) pixels.
Image Scaling Down 12M(4:3) / 3984 X2988
9M(1:1) / 2976 X2976
Format Image : JPG, Video : MP4
5
Copyright ⓒ2015 LG Electronics. Inc. All right
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LGE Internal Use Only
2. PERFORMANCE
2.2 HW Features
10. Audio Receiver 11 X 06 X 2.65T Receiver
Speaker 15 X 11 X 3.5T Speaker
Format mp3 / wav /amr / aac / ac3 / ogg / flac / mid / wma
11. Bluetooth Standard Bluetooth 4.1
Effective Distance 10M
Distance 0 m ~ 10 m (depend on environment)
12. WLAN Standard 2.4GHz IEEE 802.11 b/g/n/, 5GHz IEEE 802.11 a/n/ac
Throughput Max 40Mbps (SDIO Driver performance)
Depend on environment 0 ~ 50m (depend on environment)
13. GPS type A-GPS
14.FM type FM Radio, 3.5pi Ear-jack
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2. PERFORMANCE
2.3 RSSI Display
2.4 Current consumption
Antenna BAR
Specification
Unit
LTE WCDMA GSM
54 -86 dBm ±4dBm -87 ±4dBm -90 ±2dBm
dBm
43 -96 dBm ±4dBm -92 ±4dBm -96 ±2dBm
32 -106 dBm ±4dBm -98 ±4dBm -98 ±2dBm
21 -116 dBm ±4dBm -102 ±4dBm -102 ±2dBm
10 -128 dBm ±4dBm -108 ±4dBm -104 ±2dBm
Item
Specification
LTE WCDMA GSM
1. Sleep Mode Under 12.5mA Under 12mA Under 12mA
2. Sleep : connector Ear jack Under 13mA Under 12.5mA Under 12.5mA
3. Current(Sleep & Idle AVG) Under 15mA @ 2.56s Under 14.5mA @ DRX 7 Under 14.5mA @ P.P 5
7
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2. PERFORMANCE
2.5 Battery bar
Battery Bar Specification
BAR 20 (Full) 98% over
remain%
BAR 20 --> 19 98% ◊97%
BAR 19 --> 18 93% ◊92%
BAR 18 --> 17 88% ◊87%
BAR 17 --> 16 83% ◊82%
BAR 16 --> 15 78% ◊77%
BAR 15 --> 14 73% ◊72%
BAR 14 --> 13 68% ◊67%
BAR 13 --> 12 63% ◊62%
BAR 12 --> 11 58% ◊57%
BAR 11 --> 10 53% ◊52%
BAR 10 --> 9 48% ◊47%
BAR 9 --> 8 43% ◊42%
BAR 8 --> 7 38% ◊37%
BAR 7 --> 6 33% ◊32%
BAR 6 --> 5 28%◊27%
BAR 5 --> 4 23% ◊22%
BAR 4 --> 3 16% ◊15%
BAR 3 --> 2 13% ◊12%
BAR 2 --> 1 8% ◊7%
BAR 1 --> 0 3% ◊2%
Low Battery Pop-up 5% ~ 15%
8
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LGE Internal Use Only
2. PERFORMANCE
2.6 SW Specification
Item Feature Comment
RSSI 0 ~ 5 Levels
Battery Charging 0 ~ 20 Levels
Key Volume 0 ~ 7 Level
Audio Volume 0 ~ 15 Level
Time / Date Display Yes
Multi-Language Yes depending on build language
Quick Access Mode Phone / Messaging / Apps / Web /
Contact
Phone / Contact / Messaging /
Applications
PC Sync Yes
Speed Dial Yes Voice mail center -> 1 key
Profile Yes not same with feature phone s
etting
CLIP / CLIR Yes
Phone Book Name / Number / Email / Website /
Postal addresses / Organizations /
Groups / Birthday / Notes /
Ringtone
There is no limitation on the n
umber of items.
It depends on available memor
y amount.
Last Dial Number Yes
Last Received Number Yes
Last Missed Number Yes
Search by Number/Na
me
Name / Number
Group Yes There is no limitation on the n
umber of items.
It depends on available memor
y amount.
Fixed Dial Number Yes
Service Dial Number No
Own Number Yes My Profile (add/edit/delete are
supported)
9
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2. PERFORMANCE
2.6 SW Specification
Voice Memo Yes Support voice recorder
Call Reminder No Missed call popup
Network Selection Automatic
Mute Yes
Call Divert Yes
Call Barring Yes
Call Charge (AoC)No
Call Duration Yes
SMS (EMS) There is no limitation on the number of items
.
It depends on available memory amount.
EMS does not support.
SMS Over GPRS No
EMS Melody / Picture
Send / Receive / Save
No
MMS MPEG4
Send / Receive / Save
Yes Send / Receive : Ye s
Save : depends on content type
Support video content type li
st
1. video/mp4
2. video/h263
3. video/3gpp2
video/3gpp
Long Message It depends on SIM The standard of Open vender
Cell Broadcast Yes
Download Yes
Game No
Calendar Yes
Memo No integrated to QMemo+
World Clock Yes
10
Copyright ⓒ2015 LG Electronics. Inc. All right
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LGE Internal Use Only
2. PERFORMANCE
2.6 SW Specification
Unit Convert No
Stop Watch Yes
Wall Paper Yes
WAP Browser No WAP stack and wml are not su
pported.
Download Melody /
Wallpaper
Yes Over web browser
SIM Lock No
SIM Toolkit Yes
MMS Yes Google MMS Client
EONS Yes
CPHS Yes V4.2
ENS No
Camera Yes Main : 16M AF
VT : 8M FF
JAVA No
Voice Dial Yes
IrDa No IrRC
Bluetooth Yes Ver. 4.1
FM radio No
GPRS Yes Class 12
EDGE Yes Class 12(Rx only)
Hold / Retrieve Yes
Conference Call Yes Max. 6
DTMF Yes
Memo pad No integrated to QMemo+
TTY No
AMR Yes
SyncML No
IM Yes Google Hangout
Email Yes
11
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LGE Internal Use Only
3. TROUBLE SHOOTING
The output frequency(19.2MHz) of XO(X4100) is used as the reference one of WTR3905 and PM8994 internal VCO
3.1 Checking XO Block
ImageChecking Flow
Check TP1
Is it 19.2MHz?
START
The Problem may be
Logic part
Refer to
Logic trouble shoot
Replace X4100 and then
check TP1
Is it 19.2MHz? XO Circuit is OK.
Check next step
XO Circuit is OK.
Check next step
NO
NO
YES
YES
BOTTOM
U1500
TP1
Circuit Diagram
TP1
1212
Copyright ⓒ2015 LG Electronics. Inc. All right
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LGE Internal Use Only
3. TROUBLE SHOOTING
Checking Transceiver DC Power Supply Circuit
3.2 Transceiver DC Power Supply Circuit
ImageChecking Flow
Check TP1
+1V_RF is OK?
START
YES
Check TP2
+1.8V_RF is OK?
YES
Check next step
The Problem may be
Logic part
Refer to Logic trouble
shoot
The Problem may be
Logic part
Refer to Logic trouble
shoot
NO
NO
BOTTOM
U1500
TP2(1.8V)
TP1(1V)
Circuit Diagram
TP2(1.8V) TP1(1V)
13
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LGE Internal Use Only
3. TROUBLE SHOOTING
Checking DC-DC Block
3.3 DC-DC Block
ImageChecking Flow
BOTTOM
START
Check next step
Check TP1(+VPA0)
0.5V ≤ TP4 ≤ 4.2V ?
Check U1400 Physical
Damage or soldering
condition
NO
YES
U1400
TP1
(+VPA0)
Circuit Diagram
TP1
(+VPA0)
14
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3. TROUBLE SHOOTING
Checking FEMiD Block
3.4 ASM Block
ImageChecking Flow
Check TP1, TP2 High Level?
(2.5V≤TP1 ≤3.1V)
(1.7V≤TP2 ≤1.9V)
START
YES
Check Next step
The Problem may be
Logic part
Refer to Logic trouble
shoot
NO
Check U1201 physical Damage
or soldering condition
OK?
NOT
GOOD
Replace U1201
U1201
TP1(2.7V)
TP2(1.8V)
TOP
Circuit Diagram
TP2(1.8V)
TP1(2.7V)
15
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3. TROUBLE SHOOTING
GSM850/900/1800/1900 Rx
3.5.1 GSM PART
ImageChecking Flow
TP1(G900 Rx)
Check TP1/2/3/4 Signal exist?
START
Check next step
Check Component
above RF signal path
YES
NO
Check Transceiver physical
damage
or soldering condition
OK?
NOT GOOD
Replace U1500
TP1(G900 Rx)
U1500
TP2(G850 Rx)
TP3
(DCS Rx)
TP4
(PCS Rx)
BOTTOM
16
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3. TROUBLE SHOOTING
3.5.1 GSM PART
Circuit Diagram
TP1(G900 Rx)
TP2(G850 Rx)
TP3
(DCS Rx)
TP4
(PCS Rx)
17
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3. TROUBLE SHOOTING
GSM850/900/1800/1900 Tx
3.5.2 GSM PART
Checking Flow Image
Check TP1
+VPWR OK?
START
The Problem may be Other part
Check Logic part
YES
NO
YES
Check DC-DC Power Block
Refer to 3.3
NO
Check TP2
3.2V≤TP2≤4.2V?
Check TP3/4
If GSM850/900 Over 31dBm?
If DCS/PCS Over 28dBm?
NO
Check next step
Check component
above RF signal path
YES
Check TP5/6
If GSM850/900 Over 9dBm?
If DCS/PCS Over 7dBm? YES
Check U1301 soldering
NO
Check Transceiver
physical damage
or soldering condition
OK?
NOT GOOD
Replace U1500
TP1(+VPWR)
TP2(+VP0)
U1300
TP4
TP3
TP6(DCS/PCS)
TP5(G900/G850)
TOP
18
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3. TROUBLE SHOOTING
3.5.2 GSM PART
Circuit Diagram
TP1(+VPWR)
TP3
TP4
TP2(+VP0)
TP6(DCS/PCS)
TP5(G900/G850)
19
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3. TROUBLE SHOOTING
Checking Rx signal path(B1/B2/B5/B8)
3.6.1 WCDMA PART
Checking Flow Image
TP4
TP2
TP1
TP3
Check TP1/2/3/4
Signal exist?
START
Check next step
Check U1201
YES
NO
Check Transceiver
physical damage
or soldering condition Replace U1500
NO
OK?
U1500
20
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