LG E973-5 Optimus G Service Manual

Internal Use Only

Service ManualLG-E973

Date: December, 2012 / Issue 1.0

- 2 - Copyright 2012 LG Electronics. Inc. All right reserved.Only for training and service purposes

LGE Internal Use Only

Table Of Contents

1. INTRODUCTION ..................................................................... 31.1 Purpose ........................................................................................................3

1.2 Regulatory Information .........................................................................3

2. PERFORMANCE ...................................................................... 52.1 Product Name ............................................................................................5

2.2 Supporting Standard ..............................................................................5

2.3 Main Parts : GSM Solution .....................................................................6

2.4 HW Features ...............................................................................................6

2.5 SW Features ............................................................................................. 11

2.6 HW SPEC. ................................................................................................. 14

3.CIC_AND SERVICE CENTER .................................................. 233.1 CIC FAQ ...................................................................................................... 23

4. TROUBLE SHOOTING .......................................................... 414.1 RF Component ....................................................................................... 41

4.2 SIGNAL PATH ........................................................................................... 43

4.3 Checking TCXO Block ........................................................................... 46

4.4 Checking FEMiD (GSM, WCDMA B1/B2/B5, LTE B4) Block .... 49

4.5 Checking WCDMA Block .................................................................... 51

4.6 Checking GSM Block ............................................................................ 78

4.7 RF Component (LTE) ............................................................................. 86

4.8 GPS/WIFI/BT Module ..........................................................................111

4.9 GPS/WIFI/BT SIGNAL PATH ..............................................................113

4.10 Checking GPS/WIFI/BT....................................................................114

4.11 Audio troubleshooting ...................................................................120

4.12 8M AF Camera Trouble Shooting ...............................................128

4.13 Main LCD trouble ..............................................................................131

4.14 Touch trouble .....................................................................................134

4.15 Vibrator Troubleshooting ..............................................................136

4.16 Gyro Sensor troubleshooting ......................................................139

4.17 Compass sensor troubleshooting ..............................................141

4.18 Proximity Sensor on/off trouble .................................................144

4.19 Light Sensor on/off trouble ..........................................................146

4.20 Pressure Sensor troubleshooting ...............................................147

4.21 Power ON Troubleshooting ..........................................................149

4.22 Charging Troubleshooting ............................................................155

4.23 USB Trouble shooting .....................................................................156

4.24 HDMI Troubleshooting ...................................................................160

5. DOWNLOAD ....................................................................... 161

6. BLOCK DIAGRAM ............................................................... 181

7. CIRCUIT DIAGRAM ............................................................ 195

8. BGA PIN MAP .................................................................... 214

9. PCB LAYOUT ....................................................................... 225

10. CALIBRATION ................................................................... 227

11. HIDDEN MENU ................................................................. 247

12. DISASSEMBLE GUIDE ...................................................... 263

13. EXPLODED VIEW & REPLACEMENT PART LIST ............. 28013.1 EXPLODED VIEW ................................................................................280

13.2 Replacement Parts ...........................................................................281

13.3 Accessory .............................................................................................327



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 companys employees, agents, subcontractors, or person working on your

companys 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. 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.

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.

1. INTRODUCTION



1. INTRODUCTION


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.

2. PERFORMANCE


LGE Internal Use Only LGE Internal Use Only

2.1 Product Name

LG-E973 : WCDMA850/1900/2100+EGSM/GSM850/DCS/PCS

LTE Band 7, 17 (DC-HSDPA 42Mbps / GPRS Class 12 / EDGE Class 12)

2.2 Supporting Standard

Item Feature Comment

Supporting Standard WCDMA(FDD1,2,5)/EGSM/GSM850/DCS1800/PCS1900

LTE

with seamless handover

Phase 2+(include AMR)

Frequency Range WCDMA(FDD1) TX : 1920 1980 MHz

WCDMA(FDD1) RX : 2110 2170 MHz

WCDMA(FDD2) TX : 1850 1910 MHz


WCDMA(FDD5) TX : 824 - 849 MHz


EGSM TX : 880 915 MHz

EGSM RX : 925 960 MHz

GSM850 TX : 824 849 MHz

GSM850 RX : 869 894 MHz

DCS1800 TX : 1710 1785 MHz

DCS1800 RX : 1805 1880 MHz

PCS1900 TX : 1850 1910 MHz

PCS1900 RX : 1930 1990 MHz

LTE Band4 TX : 1710 1755 MHz

LTE Band4 RX : 2110 2155 MHz

LTE Band17 TX : 704 716 MHz

LTE Band17 RX : 734 746 MHz

Application Standard WAP 2.0

2. PERFORMANCE

2.1 Product Name

2.2 Supporting Standard

LG-E973 : WCDMA850/1900/2100+EGSM/GSM850/DCS/PCS

LTE Band 4, 17 (DC-HSDPA 42Mbps / GPRS Class 12 / EDGE Class 12)

2. PERFORMANCE




2.3 Main Parts : GSM Solution

Item Part Name Comment

Digital Baseband APQ8064: Qualcomm

Analog Baseband MDM9215M : Qualcomm

RF Chip WTR1605L : Qualcomm

2.4 HW Features Item Feature Comment

Form Factor DOP type

Battery 1) Capacity

Standard : Li-Ion, 2100mAh

2) Packing Type Embeded : Soft Pack

Size Standard :

131.9x68.9x8.45

Weight 141g With Battery

RX sensitivity

WCDMA(FDD1) : -109 dBm WCDMA(FDD5) : -109 dBm WCDMA(FDD2) : -109 dBm EGSM : -109 dBm GSM850 : -109 dBm DCS 1800 : -109 dBm PCS 1900 : -109 dBm

LTE : - 97dBm

TX output power

WCDMA/ GSM/ LTE/ GPRS

WCDMA : 23dBm/3.84MHz,+1/-3dBm

EGSM : 33dBm GSM850 : 33 dBm DCS1800 : 30dBm

PCS 1900: 29.5 dBm LTE : 23dBm

EDGE compatibility GPRS Class 12

SIM card

type

EDGE Class 12

Class3(WCDMA) Class4 (EGSM)

Class4 (GSM850) Class1 (PCS) Class1 (DCS) Class3(LTE)

2.3 Main Parts : GSM Solution

2.4 HW Features

2. PERFORMANCE




Plug-In SIM 3V /1.8V

E2 (GSM900)

E2 (PCS) E2 (DCS)

Display Main LCD

TFT Main LCD (4.67, 768 X 1280 Pixels)

Built-in Camera 8M AF + 1.3M VT Status Indicator Yes

Keypad Full Touch Screen

Side Key : 3

Side Key : Power On Volume up/down

ANT Main : Internal Fixed Type

System connector 5 Pin u-USB

Ear Phone Jack 3.5 pi type

PC synchronization Yes PC Suite

Memory 16Gb(SDRAM DDR2)

+ 32GB eMMC

Speech coding FR, EFR, HR,AMR Vibrator Built in Vibrator

Blue Tooth Bluetooth 4.0+LE MIDI(for Buzzer

Function) SW Decoded 72Poly

Music Player MP3/WMA/AAC/MIDI/EAAC+/HE

AAC/OGG

Video Player MPEG4, H.264 Camcorder MPEG4 or H.263

Voice Recording Yes

Speaker Phone mode Support

Yes

Travel Adapter Yes

CDROM No

Stereo Headset Yes Data Cable Yes

T-Flash (External Memory)

No

2. PERFORMANCE



Cell power(dBm) GSM WCDMA LTE Comment

Bar 5->4 -80dBm 3dBm -78dBm 3dBm -84dBm 3dBm

1. Cell Connecteted & CPICH level = 3.3

2. LTE l RSRP




Bar 1->Noservice No service No service No service

1) RSSI Display

Measure RSSI after 10 seconds if you change power.

2) Charging Time210 minutes under

3) Travel Charger

Input : 100 ~ 240 V, 50/60 Hz

Output : 5.0V, 1200 mA

4) Battery Type

Li-ion Battery Pack, 2100 mAh

Standard Voltage : 3.8 V, Battery Full Charge Voltage : 4.35V

2. PERFORMANCE




5) Current Consumption

Item

Specification

GSM WCDMA LTE

1. Sleep Mode 6 mA 6mA 9mA

2. Sleep : Ear jack

contact7.5 mA 7.5mA 10.5mA

3. Standby Power

(Sleep & Idle)9mA @ P.P 5 9mA @ DRX 7 11mA

4. BT Connected 10.5mA (Standby

Power 1.5mA)

10.5mA

(Standby Power

1.5mA)

12.5mA (Standby

Power 1.5mA )

5. Talk ModeGSM LVL 5

400 mA @ Avg

- Max Pwr

600mA @ Avg

- Tx 10dBm

400 mA @ Avg

450mA LTE Cat2 @

TX 10dBm

6. No SVC Mode 200 mA 200 mA

7. Power Off Mode 200uA 200uA 200uA

5) Current Consumption

2. PERFORMANCE



6) Battery Bar


6) Battery Bar

Battery Bar Specification Battery Bar Specification Bar 20(Full) 98% Bar 9 -> Bar 8 43% -> 42%

Bar 20 -> Bar 19 98% -> 97% Bar 8 -> Bar 7 38% -> 37% Bar 19 -> Bar 18 93% -> 92% Bar 7 -> Bar 6 33% -> 32% Bar 18 -> Bar 17 88% -> 87% Bar 6 -> Bar 5 28% -> 27% Bar 17 -> Bar 16 83% -> 82% Bar 5 -> Bar 4 23% -> 22% Bar 16 -> Bar 15 78% -> 77% Bar 4 -> Bar 3 18% -> 17% Bar 15 -> Bar 14 73% -> 72% Bar 3 -> Bar 2 13% -> 12% Bar 14 -> Bar 13 68% -> 67% Bar 2 -> Bar 1 8% -> 7% Bar 13 -> Bar 12 63% -> 62% Bar 1 -> Bar 0 3% -> 2% Bar 12 -> Bar 11 58% -> 57% Power off 1% Bar 11 -> Bar 10 53% -> 52% Low battery pop-up 15% , 5%, 0% Bar 10 -> Bar 9 48% -> 47%

2. PERFORMANCE




2.5 SW Features Item Feature Comment

RSSI 1 ~ 5 Levels

Battery Charging 0 ~ 7 Levels

Key Volume 0 ~ 7 Level

Audio Volume 0 ~ 15 Level

Time / Date Display Yes

Multi-Language Yes English, French, Korea, Chinese(Simplified, Traditional)

Quick Access Mode Phone / Contacts / Messaging / Email / Apps

It change by Operator(Rogers/Fido/Chat-r)

requirement.

PC Sync Yes PC Suite

Speed Dial Yes Voice mail center -> 1 key

Profile Yes not same with feature phone setting

CLIP / CLIR Yes

Phone Book Name / Number / Email / Website /

Organization / IM / Nickname / Groups / Event /Notes / Ringtone

There is no limitation on the number of items. It depends on

available memory amount.

Last Dial Number Yes 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 (Telus)

No (Bell)

2.5 SW Features

2. PERFORMANCE




Service Dial Number No(Telus)

Yes(Bell)

Own Number No Read from SIM

Voice Memo No

Call Reminder No

Network Selection Automatic

Mute Yes

Call Divert Yes

Call Barring No

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 No

Send / Receive / Save No

MMS MPEG4 Send / Receive / Save

Yes

Long Message MAX 765 characters SMS 5 concatenated

Cell Broadcast No

Download Yes

Game No

Calendar Yes

Memo Yes

World Clock Yes

Unit Convert No

Stop Watch Yes

Wall Paper Yes

2. PERFORMANCE




WAP Browser No WAP stack and wml are not supported.

Download Melody / Wallpaper

Yes Over web browser

SIM Lock Yes Operator Dependent

SIM Toolkit Class 1, 2, 3, C, D

MMS Yes

EONS Yes

CPHS Yes V4.2

ENS No

Camera Yes 8M AF VT : 1.3 M HD

JAVA No Android do not support JAVA

Voice Dial Yes Nuance Voice Control

IrDa No N/A

Bluetooth Yes Ver. 4.0 BLE

FM radio No N/A

GPRS Yes Class 12

EDGE Yes Class 12

Hold / Retrieve Yes

Conference Call Yes Max. 7

DTMF Yes

Memo pad Yes

TTY Yes

AMR Yes

SyncML No N/A

IM Yes GTalk

Email Yes

2. PERFORMANCE


LGE Internal Use Only LGE Internal Use Only

2.6 HW SPEC. 1) GSM transceiver specification

Item Specification

Phase Error Rms : 5

Peak : 20

Frequency Error GSM : 0.1 ppm

DCS/PCS : 0.1 ppm

EMC(Radiated Spurious Emission Disturbance)

GSM/DCS : < -28dBm

Transmitter Output power and Burst Timing

GSM : 5dBm 33dBm 3dB

DCS/PCS : 0dBm 30dBm 3dB

Burst Timing

2. PERFORMANCE




2) WCDMA transmitter specification

Item Specification

Transmit Frequency Band1 : 1920 MHz ~ 1980 MHz

Band5 : 824 - 849 MHz

Maximum Output Power +22.5 dBm / 3.84 MHz, +1 / -3 dB

Frequency Error within 0.1 PPM

Open Loop Power Control Normal Conditions : within 9 dB,

Extreme Conditions : within 12 dB

Minimum Transmit Power < -50 dBm /3.84 MHz

Occupied Bandwidth < 5 MHz at 3.84 Mcps (99% of power)

Adjacent Channel Leakage

Power Ratio (ACLR)

> 33 dB @ 5 MHz,

> 43 dB @ 10 MHz

Spurious Emissions

|f-fc| > 12.5 MHz

< -36 dBm / 1 kHz RW @ 9 kHz f < 150 kHz

< -36 dBm / 10 kHz RW @ 150 KHz f < 30 MHz

< -36 dBm / 100 kHz RW @ 30 MHz f < 1 GHz

< -30 dBm / 1 MHz RW @ 1 GHz f < 12.75 GHz

< -60 dBm / 3.84 MHz RW @ 869 MHz f 894 MHz



< -67 dBm / 100 kHz RW @ 925 MHz f 935 MHz

< -79 dBm / 100 kHz RW @ 935 MHz < f 960 GHz

< -71 dBm / 100 kHz RW @ 1805 MHz f 1880 MHz

< -41 dBm / 300 kHz RW @ 1884.5 MHz < f < 1919.6 MHz

Transmit Intermodulation < -31 dBc @ 5 MHz & < -41 dBc @ 10 MHz

when Interference CW Signal Level = -40 dBc

Error Vector Magnitude < 17.5 %, when Pout -20 dBm

Peak Code Domain Error < -15 dB at Pout -20 dBm

2) WCDMA transmitter specification

2. PERFORMANCE




3) WCDMA receiver specification

Item Specification

Receive Frequency Band1 : 2110 ~ 2170 MHz

Band5 : 869~894MHz

Reference Sensitivity Level Band1 : BER < 0.001 when or = -106.7 dBm / 3.84 MHz

Band4 : BER < 0.001 when or = -103.7 dBm / 3.84 MHz

Maximum Input Level BER < 0.001 when or = -25 dBm / 3.84 MHz

Adjacent Channel Selectivity

(ACS)

ACS > 33 dB where BER < 0.001 when

or = -92.7 dBm / 3.84 MHz

& Ioac = 52 dBm / 3.84 MHz @ 5 MHz

Blocking Characteristic

BER < 0.001 when or = -103.7 dBm / 3.84 MHz

& Iblocking = -56 dBm / 3.84 MHz @ Fuw(offset) = 10 MHz

or Iblocking = -44 dBm / 3.84 MHz @ Fuw(offset) = 15 MHz

Spurious Response BER < 0.001 when or = -103.7 dBm / 3.84 MHz

& Iblocking = -44 dBm

Intermodulation

BER < 0.001 when or= -103.7 dBm / 3.84 MHz

& Iouw1 = -46 dBm @ Fuw1(offset) = 10 MHz

& Iouw2 = -46 dBm / 3.84 MHz @ Fuw2(offset) = 20 MHz

Spurious Emissions < -57 dBm / 100 kHz BW @ 9 kHz f < 1 GHz

< -47 dBm / 1 MHz BW @ 1 GHz f 12.75 GHz

Inner Loop Power Control

In Uplink

Adjust output(TPC command)

cmd 1dB 2dB 3dB

+1 +0.5/1.5 +1/3 +1.5/4

0 -0.5/+0.5 -0.5/+0.5 -0.5/+0.5

-1 -0.5/-1.5 -1/-3 -1.5/-4

group(10equal command group)

+1 +8/+12 +16/+24

3) WCDMA receiver specification

2. PERFORMANCE




4) HSDPA transmitter specification

Item Specification

Transmit Frequency Band1 : 1920 MHz ~ 1980 MHz

Band5 : 824MHz~849 MHz

Maximum Output Power

Sub-Test

1=1/15, 2=12/15 21~25dBm / 3.84 MHz

3=13/15 4=15/8 20~25dBm / 3.84 MHz

5=15/7 6=15/0 19~25dBm / 3.84 MHz

HS-DPCCH

Sub-test in table

C.10.1.4

Power step

Power step slot boundary

Power step

size, P [dB]

Transmitter power step tolerance [dB]

5

1 Start of Ack/Nack

6 +/- 2.3

2 Start of CQI 1 +/- 0.6

3 Middle of CQI 0 +/- 0.6

4 End of CQI 5 +/- 2.3

Spectrum Emission Mask

Sub-Test : 1=1/15, 2=12/15, 3=13/15, 4=15/8, 5=15/7, 6=15/0

Frequency offset from carrier f

Minimum requirement Measurement Bandwidth

2.5 ~ 3.5 MHz -35-15(f-2.5)dBc 30 kHz

3.5 ~ 7.5 MHz -35-1(f-3.5)dBc 1 MHz

7.5 ~ 8.5 MHz -35-10(f-7.5)dBc 1 MHz

8.5 ~ 12.5 MHz -49dBc 1 MHz

Adjacent Channel Leakage

Power Ratio (ACLR)

Sub-Test : 1=1/15, 2=12/15, 3=13/15, 4=15/8, 5=15/7, 6=15/0

> 33 dB @ 5 MHz

> 43 dB @ 10 MHz

Error Vector Magnitude < 17.5 %, when Pout -20 dBm

4) HSDPA transmitter specification

2. PERFORMANCE




5) HSDPA receiver specification

Item Specification

Receive Frequency Band1 : 2110 ~ 2170 MHz

Band4 : 869 ~ 894Hz

Maximum Input Level

(BLER or R), 16QAM Only

Sub-Test : 1=1/15, 2=12/15, 3=13/15, 4=15/8, 5=15/7, 6=15/0

BLER < 10% or R >= 700kbps

6) WLAN 802.11b transceiver specification

Item Specification

Transmit Frequency 2400 MHz ~ 2483.5 MHz ( CH1~CH13 )

Tx Power Level 20dBm under

Frequency Tolerance within 25 PPM

Chip clock Frequency

Tolerance within 25 PPM

Spectrum Mask -30 @ fc-22MHz< f

2. PERFORMANCE




7) WLAN 802.11g transceiver specification

Item Specification


Tx Power Level 20dBm




Spectrum Mask

-20 @ 11MHz offset (9Mhz ~ 11MHz)

-28 @ 20MHz offset (11MHz ~ 20Mhz)


Transmitter constellation error

(rms EVM) -5dB

Spurious Emissions

< -36 dBm @ 30MHz ~ 1GHz

< -30 dBm above @ 1GHz ~ 12.75GHz

< -47 dBm @ 1.8GHz ~ 1.9GHz

< -47 dBm @ 5.15GHz ~ 5.3GHz

Rx Min input Sensitivity

PER 10%

-82dBm@6Mbps, -81dBm@9Mbps, -79dBm@12Mbps


-66dBm@48Mbps, -65dBm@54Mbps

Rx Max input Sensitivity -20dBm(6,9,12,18,24,36,48,54Mbps) @ PER 10%

Rx Adjacent Channel

Rejection

PER 10%,

ACR 16dB@6Mbps, ACR 15dB@9Mbps,

ACR 13dB@12Mbps, ACR 11dB@18Mbps,

ACR 8dB@24Mbps, ACR 4dB@36Mbps

ACR 0dB@48Mbps, ACR -1dB@54Mbps

ACR shall be measured by setting the desired signal's strength 3 dB above the rate-dependent

sensitivity specified in min input sensitivity

7) WLAN 802.11g transceiver specification

2. PERFORMANCE




8) WLAN 802.11n transceiver specification

Item Specification


Tx Power Level 20dBm




Spectrum Mask

-20 @ 11MHz offset (9Mhz ~ 11MHz)



Transmitter constellation error

(rms EVM) -5dB

Spurious Emissions

< -36 dBm @ 30MHz ~ 1GHz

< -30 dBm above @ 1GHz ~ 12.75GHz

< -47 dBm @ 1.8GHz ~ 1.9GHz

< -47 dBm @ 5.15GHz ~ 5.3GHz

Rx Min input Sensitivity

PER 10%

[email protected], -79dBm@13Mbps, [email protected]


[email protected], -64dBm@65Mbps

Rx Max input Sensitivity -20dBm(6,9,12,18,24,36,48,54Mbps) @ PER 10%

Rx Adjacent Channel

Rejection

PER 10%,

ACR [email protected], ACR 13dB@13Mbps,

ACR [email protected], ACR 8dB@26Mbps,

ACR 4dB@39Mbps, ACR 0dB@52Mbps

ACR [email protected], ACR -2dB@65Mbps

ACR shall be measured by setting the desired signal's strength 3 dB above the rate-dependent

sensitivity specified in min input sensitivity

8) WLAN 802.11n transceiver specification

2. PERFORMANCE



9) LTE transceiver specification

Item Spec. Min Typ. Max

Maximum Output Power(Class III)

Power class 3(Environmental Test)

20.3(20.3)

20.3(20.3)

25.7(25.7)

dBm10MHz

Frequency Error QPSK -0.1PPM-12hz -+0.1PPM

-15hz

EVM QPSK16 QAM17.512.5 %

IQ-component QPSK, 12RB -24.2 dBc

In-band emissionsfor non allocated RB QPSK, 12RB -24.2 dB

Spectrum Flathness QPSK, 50RB +5.4 dBpp

Occupied Bandwidth QPSK, 50RB 10 MHz

ACLR(Adjacent Channel Leakage

Power Ratio)

E-UTRA ACLR1 -29.2 dB

UTRA ACLR1 -32.2 dB

UTRA ACLR2 -35.2 dB

TransmitterSpurious emissions

9 kHz < f < 150 kHz -36 dBm1kHz

150 kHz < f < 30 kHz -36 dBm10kHz

30 kHz < f < 1 GHz -36 dBm100kHz

1GHz < f < 12.75 GHz -30 dBm1MHz

2. PERFORMANCE




11) GPS receiver specification

Item Specification

Receive Frequency 1574.42 MHz ~ 1576.42 MHz

Minimum Sensitivity 1 satellite -142dBm, 7 satellites -147dBm at coarse time

aiding

10) LTE receiver specification

11) GPS receiver specification

Item Spec. Min Typ. Max

Sensitivity LevelDL : QPSK, 50RB

UL :QPSK, 20RB(B5)UL : QPSK, 20RB(B17)

UL : QPSK, 50RB(B2/B4)

Dual ReceiverBand2,5Band4

Band17

-94.3-96.3-93.3

dBm/10MHz

Maximum input LevelDual Receiver

(DL : 640AM, 50RBUL : QPSK, 12RB)

-25.7dBm

/10MHz

ACS(Adjacent Channel Selectivity)

Dual Receiver(DL : 640AM, 50RBUL : QPSK, 12RB)

f 7.5MHz, LTE BW 5MHz

33 dB

In-band Blocking(DL : QPSK, 50RBUL :QPSK, 20RB)

Dual Receiverf 7.5MHz, LTE BW 5MHz

f 12.5MHz, LTE BW 5MHz-88.3

dBm/10MHz

Out-band Blocking(DL : QPSK, 50RBUL :QPSK, 20RB)

Dual Receiverf 15MHz,~85MHz, CW

- -88.3dBm

/10MHz

Narrow Band BlockingDual Receiver

f 5.2125MHz, CW-81.3

dBm/10MHz

Intermodulation( DL: QPSK, 50RBUL :QPSK, 20RB)

Dual Receiverf 12.5MHz, CW

f 25MHz, LTE BW 5MHz-88.3

dBm/10MHz

Spurious Emission( DL: QPSK, 50RBUL :QPSK, 20RB)

Dual Receiver30MHz< f < 1GHz

-57dBm

/100MHz

1GHz < f < 12.75 GHz -47dBm

/1MHz

3. CIC AND SERVICE CENTER



No FAQ Q&A

1 Q I cant remember the PhoneLock password.

A

In case of password, pin lock, proceed with factory reset through Power key + Volume down key with the power being off. - For pattern lock with Gmail setting, press the forgot button to set a new pattern

lock.- If Gmail isnt set, use Factory Reset by pressing the Power key + Volume down key

Request for development

1. How to disable Pattern Lock, Password and PIN. 2. Request to check out if it is specified in the user manual.3. Description on HW Factory Reset Key combination and how to do it.

3.CIC_AND SERVICE CENTER

3.1 CIC FAQ




No FAQ Q&A

2 Q How do I put in and take out files from the SD card?

A

To write or delete a file on the SD card, the unit must be connected to a PC by portable disk.First, download and install the USB driver. Then, confirm the order below as the USB data communication cable is connected.

1. Status Bar Slide Down2. USB connected Touch

3. Select Media sync(MTP)


1. PC SD CARD2. PHONE SD CARD




No FAQ Q&A

3 Q I use it abroad, but 3G connection doesnt work.

A

Check if Settings > networks > Mobile networks > Data Enabled is checked. If it is in uncheck condition, please check.


ex) 1. EuropeEurope 2. EuropeContinents(North America, Asia etc)




No FAQ Q&A

4 Q The GPS location isnt right, what should I do?

A

There are cases when location isnt found because GPS signal is very low or because of weather condition or surrounding environment(signal reflection).If Setting->Location Service -> Googles location service items are checked, information can be brought from the adjacent base station. It could not identify the precise location for it has wider range of error.

5 Q The downloaded application isnt compatible?

A

Specific explanation on how compatibility doesnt fit is needed.Generally for issues of incompatibility of APPs, it is shown that these problems occur when compatibility isnt considered when making APPs. It will be confirmed if the APP with incompatibility is informed.Thank you.




No FAQ Q&A

6 Q How do I make an e-mail account?

A

Email supports EAS, IMAP4, POP3 protocol.The registration order is as follows.(If no account is registered, the registration screen is automatically connected when using the e-mail.)

* EAS accountAmong e-mail service providers, choose MS Exchange > enter e-mail address, password (The user name isnt changed unless the e-mail ID and user name is different.)>Choose server address, domain and SSL > Set receiving interval, e-mail activating term > (Security setting following the server setting) > Confirm

* IMAP4, POP3Select among e-mail service providers > enter e-mail address, password > (Check if your account supports IMAP4 or POP3 service)> Choose receiving server and security type(Automatic enter and progress if the service provider is already entered) > Select sending server and security connection(Automatic enter and progress if the service provider is already entered)> (Generally, SMTP user name and password is the same as the e-mail address and password entered in the first place) > Confirm




No FAQ Q&A

7 Q E-mail registration doesnt work.

A

1. Check if wifi or data can be used because the e-mail service uses data.2. Check e-mail address and password.3. Check account setting information(IMAP, POP3, SMTP) of the service corresponding

to your mail.4. For EAS, check server information from the corresponding service manager.

8 QUnused application shows up as a using program even though it is all killed. What should I do?

AFor example, it is because e-mails and calls must be informed to the user even if kill is in progress.




No FAQ Q&A

9 Q Wifi connection doesnt work well.

A

There can be several reasons in why WiFi connection doesnt work well, but try connecting with the methods below.1. Check if WiFi is ON.2. Check if business specialized AP, thus AT&T, NESPOT, Olleh KT, SKT, U+, etc. is

connected to the AP.1) If the security type of this AP is on Open, it can be automatically connected

without entering another password, but WiFi cant be used if the unit isnt certified from the AP. Connect with another AP.

3. Entered information on the PHONE can simply be different from the AP information.

1) Check if AP information which is to be connected, thus Security type, password is precisely entered on the PHONE.

2) AP information might be newly updated. Click the corresponding AP and choose Forget, press Scan button and update the AP list. After that, attempt connection.

4. The IP might not be dynamically allocated if there is problem in the DHCP server. At this time, receive IP allocation using a static IP.

1) Go to Show advanced options(Check) > Set IP Settings(Static), i.e. IP adress, Gateway, Network prefix length, DNS 1 and DNS 2 to access AP.




No FAQ Q&A

10 Q How do you install the PC Sync Program?

ALG-E973 does not provide a separate PC-Sync program at the request of the service provider.

11 Q How do you install the Phone driver?

A

Download the USB Driver fitting the model from the communication company web site.Delete the USB cable and install the USB Driver installation file.When the installation is completed, connect the USB cable with the PC and use it with the unit.

12 Q How to connect internet/data network

A

Check if Settings > Networks > Connectivity > Mobile networks > Data enabled is checked. If it is unchecked, check it.(Users can choose to turn ON/OFF the cell phones data connection status. With data connection set OFF, MMS text messages and internet are not available.)




No FAQ Q&A

13 QWhat should I do to connect PC Sync program with the phone?

A

After connecting USB cable, it automatically works through PC Software selection > PC Suite execution for connection mode. If its not automatically connected, choose Connect Phone selection > USB Cable Connection on the PC Suite main screen. Or, connection can progress through Connect Phone selection > Bluetooth Connection > Phone to be connected selection of Bluetooth On > Discoverable On > PC Suite main screen.




No FAQ Q&A

14 Q Can language be changed?

A

You can change language through Settings - Language & input - Language(US English, Canadian French, Mexican Spanish, Chinese simplified, Chinese traditional and Korean)




No FAQ Q&A

15 Q How do you Reset and Factory Reset?

A

Reset can be done as below.(On resetting the phone, select the SD card check box and the data on the SD card will be deleted as well.)- Go to Settings - General - Back up & Reset - Factory data reset.Factory Reset can be done as below.It can be executed by pressing power key with pressing volume down key together, with Power Off.

16 Q I want to change the bell sound.

A

It can be changed through Settings - Sound - Phone ringtone.




No FAQ Q&A

17 Q Is it compatible with other devices?

A It is basically compatible with external Bluetooth and NFC devices.

18 Q How do you use HDMI?

A

pare for MHL Gender, HDMI Cable, and charger as shown in the picture.

MHL cable HDMI cable Adapter

2. Connect as shown in the picture.

3. Connect HDMI terminal to devices(monitor, TV), and change to the external input mode(HDMI mode) on the device.




No FAQ Q&A

19 Q HDMI error occurs.

A1. Confirm that HDMI Cable, MHL Gender, TA are properly connected.2. Confirm that external input mode of devices(monitor, TV) is set to HDMI mode.

20 Q How do you use Smart Share?

A

Pictures, videos and musics can be shared among DLNA-certified devices connected to same network by using SmartShare.

1. Press the Share pole and select SmartShare. 2. Move to Contents List View screen. 3. Click From to view and select available DMS Device List. 4. Click To and view/select available Player List.5. View the selected devices Contents Share List. 6. Select and play an item from the Contents List.

MUSIC VIDEO PICTURE

PLAYLIST




No FAQ Q&A

21 Q Smart Share error occurs.

A

1. LGE973 cant be searched on other devices. - Confirm whether Discoverable is checked on Setting. - Confirm if you approved E973 on other devices set up. (On E973, check Always Accept Request.)

2. Even there is a device in the same AP, no device is searched on From. - Confirm if the connected devices support DLNA, and check DLNA server function

(DMS) is on. - Searching may not be smooth if network status is not good.

3. File doesnt get played. - It could be a type of file that the device doesnt support.

4. Uploading cant be done. - Uploading DMS may not support uploading function.

5. E973(including all of LG Phones) is not found under To.-SmartShare-installed LG Phones do not support DMR.

6. When DMP is running, the pop-up for content loading wont disappear shortly.- As data are transmitted through network, loading may take longer depending on

network condition.




No FAQ Q&A

22 Q Battery consumption is too fast.

A

1. Because it is thought that the phone is distant from the network at areas of low antenna(shaded areas), more power is needed to send and receive location registration information of the phone, so battery consumption is faster.

2. Because the screen(LCD Back Light) is on, battery consumption is faster because power consumption is high. For example) If the current of the LCD Back Light is 100mA/h, it means that the 1500mA battery allows 15 hours of LCD to be on, so setting the screen time limit to be short is good because battery consumption becomes faster if the screen time limit is set to be long.

3. After turning on the application and turning it off using the home key, invisible applications are still being used on the background, so battery consumption becomes faster. It is recommended that delete/before key is always used to end applications or programs.

4. When routing is sued, the Super user authority of the Android system area is taken, so battery consumption might become faster.

5. For applications like Dodolphone, Nateon, Kakaotalk, stocks/weather wizet which need regular data updates, battery consumption might become faster if the update interval is set short.

6. If several applications are installed at once, use after restarting and battery consumption might become faster if several wizet applications are installed on the background.

23 Q How is the distribution schedule of OS or SW new version known?

AIt can be checked at local LG Electronic service centers or LG Mobile homepage notice page.




No FAQ Q&A

24 Q How do you update the SW?

A

There are 2 ways for End Users to update SW(Web Download / FOTA)- Web Download : After connecting cellphone to computer through USB, install new

binary gained through internet by using SW Update Tool.- FOTA : Without need of additional computer, download FOTA Package to cellphone

through phones network(3G, 4G WIFI etc.) and let it install & Update by itself.The 2 ways are supposed to keep User Data.

25 QUntil when is it guaranteed after purchase? What is the warranty limit?

AFree warranty period is 1 year from the date of purchase. Any breakdown or failure caused by external shock may incur repair charge even within the free warranty period.

26 Q What kinds of phone accessories are there?

A You can purchase it from a local LG Electronics service center or on the internet.




No FAQ Q&A

Please ask and answer 3 expected questions regarding the new product and new features.

27 QWhat should I do when SmartShare ends or halts upon changing the setting to USB (large capacity storage unit) while up-/down-loading files?

AWhen you change the setting to a large capacity storage unit while SD card reading or writing, the system forces the application accessing the SD card to end. That is why such abrupt ending or halting occurs. You cannot control it with SmartShare.

28 Q What is CSFB?

ACSFB stands for Circuit Switched Fall Back. CSFB enables 2G or WCDMA connection by Fall Back when an incoming call arrives while youre using LTE.

29 Q What should I do to run Quick Memo?

A

Press Volume Up + Down at the same time.Go to Quick Setting and select Quick Memo.

30 Q What should I do to use Android NFC Beam?

A

Go to Quick Setting and see if Beam feature is active. Then, get the back side of your phone together with that of the others and touch any information you want to share, e.g. Browser Pages, YouTube video, Pepple contacts etc. And youll see the touched information move to the other Phone.




No FAQ Q&A

31 Q The screen wont work. What should I do?

APress the Power button for 10 sec. Then, it will be rebooted forcefully, and the screen will work normally.

32 Q The phone is too hot.

AThe phone gets hot when you use it for a long time for calling, playing games and surfing the internet. This wont cause any problem to the phones performance or product quality.

4. TROUBLE SHOOTING



4. TROUBLE SHOOTING

4.1 RF Component

SW1002MOBILE S/W

FL1001 SEPERATOR

U2001RF Transceiver

U1002PAM (GSM, WCDMA)

U17002NFC

FL1001FEMID

U1000GNSS LNA

SW1002MOBILE S/W

SW1003MOBILE S/W

SW1001MOBILE S/W

4. TROUBLE SHOOTING



RF component

Reference No. Description Reference No. Description

U2001 WTR1605L (Transceiver) FL1013 LTE B4 Tx Filter

U1002 PAM (GSM, WCDMA B1/5) FL1001 LTE B17 / GNSS SEPERATOR

U1001 PAM (WCDMA B2) FL1013 LTE B17 Tx Filter

U1003 PAM (LTE B4) FL1006 DRX SP4T (WCDMA, LTE B4)

U1005 LTE B17 PAM FL1015 LTE B4 / B17 SEPERATOR

U1000 GNSS LNA U17002 NFC MODULE

FL1003 WCDMA B2 TX SAW SW1001 MOBILE S/W

FL1014 LTE B4 Tx Filter SW1002 MOBILE S/W

FL1012 LTE B4 DUPLEXER SW1003 MOBILE S/W

FL1017 LTE B17 DUPLEXER SW1005 MOBILE S/W

4. TROUBLE SHOOTING



4.2 SIGNAL PATH

WCDMA B1, B5 and B2 TX Signal PATH

1. WCDMA B1 TX PATH 3. WCDMA B2 TX PATH

2. WCDMA B5 TX PATH 4. COMMON TX/RX PATH

4. TROUBLE SHOOTING



WCDMA B1, B5 and B2 RX Signal PATH

1. WCDMA B1 RX PATH 3. WCDMA B2 RX PATH

2. WCDMA B5 RX PATH 4. COMMON TX/RX PATH

4. TROUBLE SHOOTING



GSM850/GSM900/DCS1800/PCS1900 RX/TX Signal PATH

1. GSM850/GSM900 TX PATH 4. GSM850 RX PATH

2. DCS1800/PCS1900 TX PATH 5. DCS1800/PCS1900 RX PATH

3. GSM900 RX PATH 6. COMMON RX/TX PATH

4. TROUBLE SHOOTING



4.3 Checking XO BlockThe output frequency (19.2MHz) of XO (X23001) is used as the reference one of WTR1605L

TP1

TP2

4. TROUBLE SHOOTING



Schematic of the Crystal Part (19.2MHz)

VREG_MODEM_L3_1P8

1n

C21038

4985253719

21

XTAL_19M_INXTAL_19M_OUTXO_OUT_A0XO_OUT_A1XO_OUT_D0XO_OUT_A0_EN/MPP_01XO_OUT_A1_EN/GPIO_06

R21

035

100K

X21000 19.2MHz4 3

21XTAL1 GND/Therm

XTAL2Thermistor

PM_GND_XOADC

WTR0_XO_A0

MDM_CXO

MODEM_XO_THERM

XO with thermistor.

TP1

R2003 4.75K

80

9360

79120

1051218811496

GNSS_BB_QM

GP_CLKGP_SYNCGP_DATA2GP_DATA1GP_DATA0

XO_INVTUNE_PRX

RBIASADC_IN

SSBI_PRX_DRX

DNIC2022

R2002

0100p

C2021

WTR0_GPDATA0WTR0_GPDATA1WTR0_GPDATA2

WTR0_XO_A0TP2

4. TROUBLE SHOOTING



Check TP1

1.7V~1.9V Check PM8018No

Yes

Check TP2

19.2MHz Signal Check soldering and components

No

Yes

XO OK

4. TROUBLE SHOOTING



4.4 Checking FEMiD (GSM, WCDMA B1/B2/B5, LTE B4) Block

Schematic of the Antenna Switch Block

C1000

100n

1KR1004

R1005 1K

1KR1006

C1016

1n

R1003 1K

4 3

2

1

SW1001

ANTCOMMON

G3G4

SW1000

G1

ANT G2

DNI

L1001

FL1000

GND828

GND727

B1TX1

B1RX226

GND1

2B1R

X1

25B2TX

3B5TX

4GSM1800/1900TX

5GSM850/900TX

6

GND1034

GND2

7

GND933

ANT

8

GSM900RX232

GND3

9

GSM900RX131

VDD10

GSM1800/1900RX230

CTL111

GSM1800/1900RX129

CTL212

CTL313

CTL414

TRX115

TRX216

TRX317

B5R

X1

18

B5R

X2

19

GND4

20

GND5

21

B2R

X1

22

B2R

X2

23

GND6

24

L10001n

R1000

0

VDD_RF_SW

ANT_SW_SEL3

ANT_SW_SEL0

RX_L4

RX_G900_MRX_G900_P

RX_UG850_MRX_UG850_P

RX_U2100_PRX_U2100_M

RX_GSM_HB_PRX_GSM_HB_M

RX_U1900_MRX_U1900_P

TX_ANT_U1900

ANT_SW_SEL1ANT_SW_SEL2

TX_ANT_U850

TX_ANT_U2100

TX_GSM_HBTX_GSM_LB

TRX_ANT_B20

TP1

TP2

TP3TP5

TP4

4. TROUBLE SHOOTING



Check ANT_SEL 0,1,2,3 High Level

1.4 Voltage 3.0V Check the TP1(VDD)No

Yes

Check the ANT Logic in each mode

CTL1 CTL2 CTL3 CTL4

UMTS B1 H L H H

UMTS B2 H L L H

UMTS B5 L L L H

LTE 4 H H H H

GSM LB TX L H L H

GSM HB TX H L L L

GSM900 RX L H L L

GSM1800 RX L L H L

GSM1900 RX L H H L

TP2 TP3 TP4 TP5

4. TROUBLE SHOOTING



4.5 Checking WCDMA Block

START

Check XO(19.2MHz) BlockRefer to 4.3

Check FEMID BlockRefer to 4.4

Check TX/RX Level

Re-download & Cal

Change the Board

4. TROUBLE SHOOTING



4.5.1 Checking XO (19.2MHz) BlockRefer to 4.3

4.5.2. Checking FEMID BlockRefer to 4.4

4.5.3. Checking RF TX Level

WCDMA B1

C1000

100n

1KR1004

R1005 1K

1KR1006

C1016

1n

R1003 1K

4 3

2

1

SW1001

ANTCOMMON

G3G4

SW1000

G1

ANT G2

DNI

L1001

FL1000

GND828

GND727

B1TX1

B1RX226

GND1

2B1R

X1

25B2TX

3B5TX

4GSM1800/1900TX

5GSM850/900TX

6

GND1034

GND2

7

GND933

ANT

8

GSM900RX232

GND3

9

GSM900RX131

VDD10

GSM1800/1900RX230

CTL111

GSM1800/1900RX129

CTL212

CTL313

CTL414

TRX115

TRX216

TRX317

B5R

X1

18

B5R

X2

19

GND4

20

GND5

21

B2R

X1

22

B2R

X2

23

GND6

24

L10001n

R1000

0

VDD_RF_SW

ANT_SW_SEL3

ANT_SW_SEL0

RX_L4

RX_G900_MRX_G900_P





TX_ANT_U1900


TX_ANT_U850

TX_ANT_U2100

TX_GSM_HBTX_GSM_LB

TRX_ANT_B20

TP1

4. TROUBLE SHOOTING



L1059

2.2n

L1046

1.5n

U1002

25

1224

18

17

19

16

20

15

21

14

22

13

23

6

5

7

4

8

3

9

2

10

1

11UMTS_LB_RF_IN

UMTS_HB_RF_IN

GSM_LB_RF_IN

GSM_HB_RF_IN

LB_EN

HB_EN

VBATT

VMODE0

GND1

VMODE1

MODE

GND2

GSM_LB_RF_OUT

UMTS_HB_RF_OUT

GND3

GND4

GSM_HB_RF_OUT

UMTS_LB_RF_OUT

GND5

GND6

VCC_GSM

VCC_UMTS

CPL_RF_OUT

CPL_RF_IN

GND_SLUG

C1046

DNI

C1052

22u

L1053

DNI

C1061

1n C1053

1n 1nC1060

VBAT

DNI

L1061

1.5p

C1064

L1065

DNI

4.7u

C1051

51

R1007

5.6n

L1052

500f

L1049

600f

L1054

5.6n

L1064

C1102 1.2p

+VSMPS

PA_DET_MMMB

TX_ANT_U850

TX_ANT_U2100

TX_GSM_HB

TX_GSM_LB

GSM(QUAD)_ U1/8(EU) MMMBTP2

FL1011GND

5

IN1

OUT4

G1

2

G2

3

L1042

2.2n

U1002

25

1224

18

17

19

16

20

15

21

14

22

13

23

6

5

7

4

8

3

9

2

10

1

11UMTS_LB_RF_IN

UMTS_HB_RF_IN

GSM_LB_RF_IN

GSM_HB_RF_IN

LB_EN

HB_EN

VBATT

VMODE0

GND1

VMODE1

MODE

GND2

GSM_LB_RF_OUT

UMTS_HB_RF_OUT

GND3

GND4

GSM_HB_RF_OUT

UMTS_LB_RF_OUT

GND5

GND6

VCC_GSM

VCC_UMTS

CPL_RF_OUT

CPL_RF_IN

GND_SLUG

L1062

15n

C1054

22u

100p

C1055

100p

C1056

C1057

100p

C1058

100p

100p

C1059

1nC1060

L1055

2.7n

L1063

DNI

C1062

6.8p

51

R1007

L1060

DNI

DNI

L1045

DNI

L1044

C1042 33p

33pC1039

C1063

9.1n

L1043

2.7n

FL1007 1950MHz

5 2

4 1

3G3

INOUTG1G2

+VPWR

PA_DET_MMMB

PA0_R0PA0_R1

TX_OUT_U850

TX_OUT_GSM_HB

TX_OUT_GSM_LB

TX_OUT_U2100

MMMB_MODE

PA_ON0_GSMLB

PA_ON1_GSMHB

TP3

4. TROUBLE SHOOTING



TP3

TP2

TP1

4. TROUBLE SHOOTING



testing, Max power output is needed

Check ANT_SEL 0,1,2,3 (High, Low, High, High)

Check TP1Over 21 dBm? RF TX Level is OK

Yes

No

Check WTR1605L

Check TP2Over 21 dBm? Check FL11008

Yes

No

Check TP3Over -3 dBm? Check PAM

Yes

No

4. TROUBLE SHOOTING



- PAM control signal

PA_ON1 GSMHB (C1059) : PAM Enable

PA_R0 (C1056) : PAM Gain Control

PA_ON1 GSMHB (C1059) must be HIGH (over 2.6V)

TP3

TP4

TP2

TP1

4. TROUBLE SHOOTING



FL1011GND

5

IN1

OUT4

G1

2

G2

3

L1042

2.2n

U1002

25

1224

18

17

19

16

20

15

21

14

22

13

23

6

5

7

4

8

3

9

2

10

1

11UMTS_LB_RF_IN

UMTS_HB_RF_IN

GSM_LB_RF_IN

GSM_HB_RF_IN

LB_EN

HB_EN

VBATT

VMODE0

GND1

VMODE1

MODE

GND2

GSM_LB_RF_OUT

UMTS_HB_RF_OUT

GND3

GND4

GSM_HB_RF_OUT

UMTS_LB_RF_OUT

GND5

GND6

VCC_GSM

VCC_UMTS

CPL_RF_OUT

CPL_RF_IN

GND_SLUG

L1062

15n

C1054

22u

100p

C1055

100p

C1056

C1057

100p

C1058

100p

100p

C1059

1nC1060

L1055

2.7n

L1063

DNI

C1062

6.8p

51

R1007

L1060

DNI

DNI

L1045

DNI

L1044

C1042 33p

33pC1039

C1063

9.1n

L1043

2.7n

FL1007 1950MHz

5 2

4 1

3G3

INOUTG1G2

+VPWR

PA_DET_MMMB

PA0_R0PA0_R1

TX_OUT_U850

TX_OUT_GSM_HB

TX_OUT_GSM_LB

TX_OUT_U2100

MMMB_MODE

PA_ON0_GSMLB

PA_ON1_GSMHB

TP2

TP1

TP3

4. TROUBLE SHOOTING



Set the phone Tx is On and PDM is 90

Check TP4 Over 21 dBm?

Check TP1 Over -3 dBm?

RF Tx Level is OK

No

No

No

Yes

Yes

Yes

Change the board

Check TP2 MMPA 2.6V

Check TP3 PA _R0 0.5V

Check MDM9615M

Check WTR1605L

4. TROUBLE SHOOTING



WCDMA B5

C1000

100n

1KR1004

R1005 1K

1KR1006

C1016

1n

R1003 1K

4 3

2

1

SW1001

ANTCOMMON

G3G4

SW1000

G1

ANT G2

DNI

L1001

FL1000

GND828

GND727

B1TX1

B1RX226

GND1

2B1R

X1

25B2TX

3B5TX

4GSM1800/1900TX

5GSM850/900TX

6

GND1034

GND2

7

GND933

ANT

8GSM900RX2

32GND3

9

GSM900RX131

VDD10

GSM1800/1900RX230

CTL111

GSM1800/1900RX129

CTL212

CTL313

CTL414

TRX115

TRX216

TRX317

B5R

X1

18

B5R

X2

19

GND4

20

GND5

21

B2R

X1

22

B2R

X2

23

GND6

24

L10001n

R1000

0

VDD_RF_SW

ANT_SW_SEL3

ANT_SW_SEL0

RX_L4

RX_G900_MRX_G900_P





TX_ANT_U1900


TX_ANT_U850

TX_ANT_U2100

TX_GSM_HBTX_GSM_LB

TRX_ANT_B20

TP1

L1059

2.2n

L1046

1.5n

U1002

25

1224

18

17

19

16

20

15

21

14

22

13

23

6

5

7

4

8

3

9

2

10

1

11UMTS_LB_RF_IN

UMTS_HB_RF_IN

GSM_LB_RF_IN

GSM_HB_RF_IN

LB_EN

HB_EN

VBATT

VMODE0

GND1

VMODE1

MODE

GND2

GSM_LB_RF_OUT

UMTS_HB_RF_OUT

GND3

GND4

GSM_HB_RF_OUT

UMTS_LB_RF_OUT

GND5

GND6

VCC_GSM

VCC_UMTS

CPL_RF_OUT

CPL_RF_IN

GND_SLUG

C1046

DNI

C1052

22u

L1053

DNI

C1061

1n C1053

1n 1nC1060

VBAT

DNI

L1061

1.5p

C1064

L1065

DNI

4.7u

C1051

51

R1007

5.6n

L1052

500f

L1049

600f

L1054

5.6n

L1064

C1102 1.2p

+VSMPS

PA_DET_MMMB

TX_ANT_U850

TX_ANT_U2100

TX_GSM_HB

TX_GSM_LB

GSM(QUAD)_ U1/8(EU) MMMB

TP2

4. TROUBLE SHOOTING



FL1011GND

5

IN1

OUT4

G1

2

G2

3

L1042

2.2n

U1002

25

1224

18

17

19

16

20

15

21

14

22

13

23

6

5

7

4

8

3

9

2

10

1

11UMTS_LB_RF_IN

UMTS_HB_RF_IN

GSM_LB_RF_IN

GSM_HB_RF_IN

LB_EN

HB_EN

VBATT

VMODE0

GND1

VMODE1

MODE

GND2

GSM_LB_RF_OUT

UMTS_HB_RF_OUT

GND3

GND4

GSM_HB_RF_OUT

UMTS_LB_RF_OUT

GND5

GND6

VCC_GSM

VCC_UMTS

CPL_RF_OUT

CPL_RF_IN

GND_SLUG

L1062

15n

C1054

22u

100p

C1055

100p

C1056

C1057

100p

C1058

100p

100p

C1059

1nC1060

L1055

2.7n

L1063

DNI

C1062

6.8p

51

R1007

L1060

DNI

DNI

L1045

DNI

L1044

C1042 33p

33pC1039

C1063

9.1n

L1043

2.7n

FL1007 1950MHz

5 2

4 1

3G3

INOUTG1G2

+VPWR

PA_DET_MMMB

PA0_R0PA0_R1

TX_OUT_U850

TX_OUT_GSM_HB

TX_OUT_GSM_LB

TX_OUT_U2100

MMMB_MODE

PA_ON0_GSMLB

PA_ON1_GSMHB

TP3

TP3

TP2TP1

4. TROUBLE SHOOTING



testing, Max power output is needed

Check ANT_SEL 0,1,2,3 (Low, Low, Low, High)


Yes

No

Check WTR1605L

Check TP2Over 21 dBm? Check FL11012

Yes

No

Check TP3Over -3 dBm? Check PAM

Yes

No

4. TROUBLE SHOOTING




PA_ON0 GSMLB (C1059) : PAM Enable

PA_R0 (C11053) : PAM Gain Control

PA_ON0 GSMLB (C1059) must be HIGH (over 2.6V)

TP3

TP2

TP4

TP1

4. TROUBLE SHOOTING



L1059

2.2n

L1046

1.5n

U1002

25

1224

18

17

19

16

20

15

21

14

22

13

23

6

5

7

4

8

3

9

2

10

1

11UMTS_LB_RF_IN

UMTS_HB_RF_IN

GSM_LB_RF_IN

GSM_HB_RF_IN

LB_EN

HB_EN

VBATT

VMODE0

GND1

VMODE1

MODE

GND2

GSM_LB_RF_OUT

UMTS_HB_RF_OUT

GND3

GND4

GSM_HB_RF_OUT

UMTS_LB_RF_OUT

GND5

GND6

VCC_GSM

VCC_UMTS

CPL_RF_OUT

CPL_RF_IN

GND_SLUG

C1046

DNI

C1052

22u

L1053

DNI

C1061

1n C1053

1n 1nC1060

VBAT

DNI

L1061

1.5p

C1064

L1065

DNI

4.7u

C1051

51

R1007

5.6n

L1052

500f

L1049

600f

L1054

5.6n

L1064

C1102 1.2p

+VSMPS

PA_DET_MMMB

TX_ANT_U850

TX_ANT_U2100

TX_GSM_HB

TX_GSM_LB

GSM(QUAD)_ U1/8(EU) MMMB

TP1

FL1011GND

5

IN1

OUT4

G1

2

G2

3

L1042

2.2n

U1002

25

1224

18

17

19

16

20

15

21

14

22

13

23

6

5

7

4

8

3

9

2

10

1

11UMTS_LB_RF_IN

UMTS_HB_RF_IN

GSM_LB_RF_IN

GSM_HB_RF_IN

LB_EN

HB_EN

VBATT

VMODE0

GND1

VMODE1

MODE

GND2

GSM_LB_RF_OUT

UMTS_HB_RF_OUT

GND3

GND4

GSM_HB_RF_OUT

UMTS_LB_RF_OUT

GND5

GND6

VCC_GSM

VCC_UMTS

CPL_RF_OUT

CPL_RF_IN

GND_SLUG

L1062

15n

C1054

22u

100p

C1055

100p

C1056

C1057

100p

C1058

100p

100p

C1059

1nC1060

L1055

2.7n

L1063

DNI

C1062

6.8p

51

R1007

L1060

DNI

DNI

L1045

DNI

L1044

C1042 33p

33pC1039

C1063

9.1n

L1043

2.7n

FL1007 1950MHz

5 2

4 1

3G3

INOUTG1G2

+VPWR

PA_DET_MMMB

PA0_R0PA0_R1

TX_OUT_U850

TX_OUT_GSM_HB

TX_OUT_GSM_LB

TX_OUT_U2100

MMMB_MODE

PA_ON0_GSMLB

PA_ON1_GSMHB

TP4

TP3

TP2

4. TROUBLE SHOOTING




Check TP4 Over 21 dBm?

Check TP1 Over -3 dBm?

RF Tx Level is OK

No

No

No

Yes

Yes

Yes

Change the board

Check TP2 MMPA 2.6V

Check TP3 PA _R0 0.5V

Check MDM9615M

Check WTR1605L

4. TROUBLE SHOOTING



WCDMA B2

C1000

100n

1KR1004

R1005 1K

1KR1006

C1016

1n

R1003 1K

4 3

2

1

SW1001

ANTCOMMON

G3G4

SW1000

G1

ANT G2

DNI

L1001

FL1000

GND828

GND727

B1TX1

B1RX226

GND1

2B1R

X1

25B2TX

3B5TX

4GSM1800/1900TX

5GSM850/900TX

6

GND1034

GND2

7

GND933

ANT

8

GSM900RX232

GND3

9

GSM900RX131

VDD10

GSM1800/1900RX230

CTL111

GSM1800/1900RX129

CTL212

CTL313

CTL414

TRX115

TRX216

TRX317

B5R

X1

18

B5R

X2

19

GND4

20

GND5

21

B2R

X1

22

B2R

X2

23

GND6

24

L10001n

R1000

0

VDD_RF_SW

ANT_SW_SEL3

ANT_SW_SEL0

RX_L4

RX_G900_MRX_G900_P





TX_ANT_U1900


TX_ANT_U850

TX_ANT_U2100

TX_GSM_HBTX_GSM_LB

TRX_ANT_B20

TP1

2.2u

C1021

1p

L1030

FL1003

5 3 2

4 1INOUT

G1G2G3

C1027

100p

C1028

100p

C1029

100p

C1020

330p

C1018

330p

C1019

2.2u

15n

L1029

C1024 33pC1023 33p

1n

L1027

2.7n

C1022

U1001

PGND11

VCC11

VCC210

RFIN2

RFOUT9

VEN5

NC3

ISO8

VMODE4

GND7

CPL6R1016

DNI

+VPWR

PA_DET_1

+VSMPS

PA_DET_MMMBTX_ANT_U1900

PA_ON4_U1900

PA0_R0PA0_R1

TP2

TP3

4. TROUBLE SHOOTING



TP1

TP2

TP3

TOP BOTTOM

4. TROUBLE SHOOTING




PA_ON4_U1900 (C1029) : PAM Enable (VEN)

PA0_R1 (C1028) : PAM Gain Control (VMODE)

PA_ON4_U1900 (VEN) must be HIGH (over 2.6V)

TP2

TP3

TP1

VEN

4. TROUBLE SHOOTING




Check TP3Over 21 dBm? RF Tx Level is OK

Yes

No

Change the board

Check TP2PA _R1 2.6V Check MDM9615M

Yes

No

Check TP1Over -3 dBm? Check WTR1605L

Yes

No

2.2u

C1021

1p

L1030

FL1003

5 3 2

4 1INOUT

G1G2G3

C1027

100p

C1028

100p

C1029

100p

C1020

330p

C1018

330p

C1019

2.2u

15n

L1029

C1024 33pC1023 33p

1n

L1027

2.7n

C1022

U1001

PGND11

VCC11

VCC210

RFIN2

RFOUT9

VEN5

NC3

ISO8

VMODE4

GND7

CPL6R1016

DNI

+VPWR

PA_DET_1

+VSMPS

PA_DET_MMMBTX_ANT_U1900

PA_ON4_U1900

PA0_R0PA0_R1

TP3

TP2

TP1

VEN

4. TROUBLE SHOOTING



4.5.4. Checking RF Rx Level

WCDMA B1

Test Point (WCDMA B1 RF Rx Level)

TP1

TP2

4. TROUBLE SHOOTING



C1000

100n

1KR1004

R1005 1K

1KR1006

C1016

1n

R1003 1K

4 3

2

1

SW1001

ANTCOMMON

G3G4

SW1000

G1

ANT G2

DNI

L1001

FL1000

GND828

GND727

B1TX1

B1RX226

GND1

2B1R

X1

25B2TX

3B5TX

4GSM1800/1900TX

5GSM850/900TX

6

GND1034

GND2

7

GND933

ANT

8

GSM900RX232

GND3

9

GSM900RX131

VDD10

GSM1800/1900RX230

CTL111

GSM1800/1900RX129

CTL212

CTL313

CTL414

TRX115

TRX216

TRX317

B5R

X1

18

B5R

X2

19

GND4

20

GND5

21

B2R

X1

22

B2R

X2

23

GND6

24

L10001n

R1000

0

VDD_RF_SW

ANT_SW_SEL3

ANT_SW_SEL0

RX_L4

RX_G900_MRX_G900_P





TX_ANT_U1900


TX_ANT_U850

TX_ANT_U2100

TX_GSM_HBTX_GSM_LB

TRX_ANT_B20

TP1

3.3n

L1004

1.2n

L1002

L1009

1.2nRX_U2100_P

RX_U2100_M PRX_U2100_INM

PRX_U2100_INP

W1(AT) W1(EU)_Rx

TP2

4. TROUBLE SHOOTING



START

Check TP1 Signal exist? Check RF (M/S)No

Yes

Check, WTR1605L

Yes

Check TP2 Signal exist?

Check FemidNo

4. TROUBLE SHOOTING



WCDMA B5


TP1

TP2

4. TROUBLE SHOOTING



C1000

100n

1KR1004

R1005 1K

1KR1006

C1016

1n

R1003 1K

4 3

2

1

SW1001

ANTCOMMON

G3G4

SW1000

G1

ANT G2

DNI

L1001

FL1000

GND828

GND727

B1TX1

B1RX226

GND1

2B1R

X1

25B2TX

3B5TX

4GSM1800/1900TX

5GSM850/900TX

6

GND1034

GND2

7

GND933

ANT

8

GSM900RX232

GND3

9

GSM900RX131

VDD10

GSM1800/1900RX230

CTL111

GSM1800/1900RX129

CTL212

CTL313

CTL414

TRX115

TRX216

TRX317

B5R

X1

18

B5R

X2

19

GND4

20

GND5

21

B2R

X1

22

B2R

X2

23

GND6

24

L10001n

R1000

0

VDD_RF_SW

ANT_SW_SEL3

ANT_SW_SEL0

RX_L4

RX_G900_MRX_G900_P





TX_ANT_U1900


TX_ANT_U850

TX_ANT_U2100

TX_GSM_HBTX_GSM_LB

TRX_ANT_B20

TP1

L1015

10n

C1010

DNI

10n

L1012

RX_UG850_M

RX_UG850_P

PRX_UG850_INM

PRX_UG850_INP

UG5(AT) UG8(EU)_Rx

TP2

4. TROUBLE SHOOTING



START


Yes

Check, WTR1605L

Yes


Check FemidNo

4. TROUBLE SHOOTING



WCDMA B2


TP1

TP2

4. TROUBLE SHOOTING



C1000

100n

1KR1004

R1005 1K

1KR1006

C1016

1n

R1003 1K

4 3

2

1

SW1001

ANTCOMMON

G3G4

SW1000

G1

ANT G2

DNI

L1001

FL1000

GND828

GND727

B1TX1

B1RX226

GND1

2B1R

X1

25B2TX

3B5TX

4GSM1800/1900TX

5GSM850/900TX

6

GND1034

GND2

7

GND933

ANT

8

GSM900RX232

GND3

9

GSM900RX131

VDD10

GSM1800/1900RX230

CTL111

GSM1800/1900RX129

CTL212

CTL313

CTL414

TRX115

TRX216

TRX317

B5R

X1

18

B5R

X2

19

GND4

20

GND5

21

B2R

X1

22

B2R

X2

23

GND6

24

L10001n

R1000

0

VDD_RF_SW

ANT_SW_SEL3

ANT_SW_SEL0

RX_L4

RX_G900_MRX_G900_P





TX_ANT_U1900


TX_ANT_U850

TX_ANT_U2100

TX_GSM_HBTX_GSM_LB

TRX_ANT_B20

TP1

TP2DNI

L1014

10n

L1016

L1013

10n

RX_G900_M

RX_G900_P

PRX_G900_INM

PRX_G900_INP

EGSM(AT)GSM850(EU)_Rx

4. TROUBLE SHOOTING



START


Yes

Check, WTR1605L

Yes


Check FemidNo

4. TROUBLE SHOOTING



4.6 Checking GSM Block

START

1. Check XO Block

2. Check TX Module

3. Check TX/RX Level

4. Re-download SW & Cal

4. TROUBLE SHOOTING



1

1

4. TROUBLE SHOOTING



2,3

4. TROUBLE SHOOTING



4.6.1 Checking XO Block

Refer to 4.3

4.6.2 Checking Tx module Block

Refer to 4.4

4.6.3 Checking RF TX level

TP3

TP2

TP1

4. TROUBLE SHOOTING



FL1011GND

5

IN1

OUT4

G1

2

G2

3

L1042

2.2n

U1002

25

1224

18

17

19

16

20

15

21

14

22

13

23

6

5

7

4

8

3

9

2

10

1

11UMTS_LB_RF_IN

UMTS_HB_RF_IN

GSM_LB_RF_IN

GSM_HB_RF_IN

LB_EN

HB_EN

VBATT

VMODE0

GND1

VMODE1

MODE

GND2

GSM_LB_RF_OUT

UMTS_HB_RF_OUT

GND3

GND4

GSM_HB_RF_OUT

UMTS_LB_RF_OUT

GND5

GND6

VCC_GSM

VCC_UMTS

CPL_RF_OUT

CPL_RF_IN

GND_SLUG

L1062

15n

C1054

22u

100p

C1055

100p

C1056

C1057

100p

C1058

100p

100p

C1059

1nC1060

L1055

2.7n

L1063

DNI

C1062

6.8p

51

R1007

L1060

DNI

DNI

L1045

DNI

L1044

C1042 33p

33pC1039

C1063

9.1n

L1043

2.7n

FL1007 1950MHz

5 2

4 1

3G3

INOUTG1G2

+VPWR

PA_DET_MMMB

PA0_R0PA0_R1

TX_OUT_U850

TX_OUT_GSM_HB

TX_OUT_GSM_LB

TX_OUT_U2100

MMMB_MODE

PA_ON0_GSMLB

PA_ON1_GSMHB

TP3

TP2

Schematic of GSM(850/900)/DCS/PCS Tx Block

Chenck XO BlockRefer to 1.3

Check TP1If GSM over 31 dBm ?

If DCS, PCS over Over 28 dBm?GSM/DCS/PCS TX is Check other part

Yes

No

Change the Board

Check TP2,3If GSM(TP2) under 6 dBm ?

If DCS, PCS (TP3) under 6 dBm ?Check Tx Module, FEMID

Refer to 4.4

Yes

No

Check RTR & PAD Check soldering and components

No Problem

Still exist Problem

START

4. TROUBLE SHOOTING



4.6.4 Checking RF Rx Block

TP1

TP2

4. TROUBLE SHOOTING



Schematic of GSM(850/900)/DCS/PCS Rx Block

C1000

100n

1KR1004

R1005 1K

1KR1006

C1016

1n

R1003 1K

4 3

2

1

SW1001

ANTCOMMON

G3G4

SW1000

G1

ANT G2

DNI

L1001

FL1000

GND828

GND727

B1TX1

B1RX226

GND1

2B1R

X1

25B2TX

3B5TX

4GSM1800/1900TX

5GSM850/900TX

6

GND1034

GND2

7

GND933

ANT

8

GSM900RX232

GND3

9

GSM900RX131

VDD10

GSM1800/1900RX230

CTL111

GSM1800/1900RX129

CTL212

CTL313

CTL414

TRX115

TRX216

TRX317

B5R

X1

18

B5R

X2

19

GND4

20

GND5

21

B2R

X1

22

B2R

X2

23

GND6

24

L10001n

R1000

0

VDD_RF_SW

ANT_SW_SEL3

ANT_SW_SEL0

RX_L4

RX_G900_MRX_G900_P





TX_ANT_U1900


TX_ANT_U850

TX_ANT_U2100

TX_GSM_HBTX_GSM_LB

TRX_ANT_B20

TP1

4. TROUBLE SHOOTING



Set the Phone Rx is ON

Check TP1 Signal exist? Check RF Switch(M/S)No

Yes

Change the Board

Yes


Check Tx Module, FEMIDRefer to 4.4

No

TP2

DNI

L1014

5.1n

L1024

L1015

10n10n

L1016

L1013

10n

C1017

1n

1n

C1015

C1010

DNI

10n

L1012

RX_G900_M

RX_G900_PRX_UG850_M

RX_UG850_P

RX_GSM_HB_P

RX_GSM_HB_M

PRX_UG850_INM

PRX_UG850_INPPRX_G900_INM

PRX_G900_INP

PRX_GSM_HB_INM

PRX_GSM_HB_INP

EGSM(AT)GSM850(EU)_Rx

DCS/PCS(AT,EU)_Rx

UG5(AT) UG8(EU)_Rx

4. TROUBLE SHOOTING



4.7 RF Component (LTE)

FL1001GPS/LTE B17 Separator

U2000RF Tranceiver

FL1002LTE B17 DRx SAW

FL1000RF FEMID

4. TROUBLE SHOOTING



SP4T

LTE B7DRx SAW

LTE B4Tx SAW

LTE B4PRx SAW

LTE B4PAM

LTE B4Duplexer

LTE B4/B17Diplexer

LTE B17Duplexer

LTE B17PAM

LTE B17Tx SAW

4. TROUBLE SHOOTING



4.7.1 SIGNAL PATH (LTE)

LTE B4 DRx

LTE B17 DRx

TOP

TOP

Tranceiver

LTE B4 TxLTE B17 Tx

LTE B17 PRx

LTE B4 PRx

TOP

BOTTOM

BOTTOM

TranceiverBOTTOM

4. TROUBLE SHOOTING



START

Check XO Block

Check TX/RX Level

Re-download & Cal

Change the Board

4. TROUBLE SHOOTING



4.7.2 Checking RF Tx Level [LTE Band4]

TP1

DNI

C1104

L1082 1n

FL1015

4 3

5 2

6 1P2GND3

GND1P3

P1GND2

L1085

82n

C1103

100p

SW1004

G1

ANTG2

SW1005

43

2

1ANT COMMON

G3 G4

TRX_ANT_B20

TP1

4. TROUBLE SHOOTING



TP4

TP3

TP2

L1067

100p

R1008

49.9

L1069

2.7n

L1070

100p

C1077

1p

C1066

2.2u

L1075

4.7n

U1003

PGND11

VCC11

VCC210

RFIN2

RFOUT9

VEN5

NC3

ISO8

VMODE4

GND7

CPL6

L1072

3.9n

L1071

33p

L1077

2.7n

FL1012

75

84

92

3

16ANT RX

TX

GND1 GND6

GND2 GND5

GND3 GND4 DNI

R1017

FL1013

1732.5MHz532

41IN OUTG1 G2 G3

100p

C1080

C1079

100p

C1078

100p

C1065

330p

C1067

330p

2.2u

C1068

+VPWR

PA_DET_1

+VSMPS

PA0_R0PA0_R1

Rx_L7

PA_ON5_L4

LTE B4 R1008

DNI -> 49.9OHM (ERHY0042409)

Change New PAChange EU AVAGO

TP2 TP3 TP4

4. TROUBLE SHOOTING



Start


Yes

No

Check WTR1605L

Check TP2Over 21 dBm? Check B4/B17 Diplexer

Yes

No

Check TP3Over 21 dBm?

Check TP4Over -5 dBm?

Check B4 Duplexer

Check B7 PAM

Yes

Yes

No

No

4. TROUBLE SHOOTING



4.7.1.1 Checking PAM [LTE Band4]

TP2TP3

TP4

4. TROUBLE SHOOTING



Set the Phone Tx is On andPDM is 90

Check TP1Over 21 dBm? RF Tx Level is OK

Yes

No

Change the board

Check TP2PA_ON = 1.35~3.1V MDM9615M is OK

Yes

No

Check TP3Over -5 dBm? Check WTR1605L is OK

Yes

No

L1066

DNI

L1070

100p

C1077

1p

C1

Documents

LG E973-5 Optimus G Service Manual