LG S980 Service Manual

Internal Use Only

Service Manual

LG-LS980

Date: August, 2013 / Issue 0.9

Table Of Contents

1. INTRODUCTION ..................................................................... 3

1.1 Purpose ........................................................................................................3

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

2. PERFORMANCE ...................................................................... 5

2.1 Product Name ............................................................................................5

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

2.3 Functions of Major Semi-Conductors ..............................................6

2.4 HW Features ...............................................................................................7

2.5 SW Features ................................................................................................8

2.6 Battery Bar. ...............................................................................................11

2.7 LG980 Figures ......................................................................................... 12

3. TROUBLE SHOOTING ..........................................................13

3.1 RF Component ....................................................................................... 13

3.2 Signal Path ............................................................................................... 17

3.3 Checking XO Block ................................................................................ 20

3.4 Checking U1000 .................................................................................... 23

3.5 Checking WCDMA Block ....................................................................25

3.6 Checking GSM Block ............................................................................ 44

3.7 SIGNAL PATH (CDMA<E) ................................................................ 54

3.8 GPS/WIFI/BT Module ............................................................................ 82

3.9 GPS/WIFI/BT SIGNAL PATH ................................................................ 84

3.10 Audio trouble ....................................................................................... 92

3.11 Camera ..................................................................................................108

3.12 Main LCD trouble ..............................................................................114

3.13 Touch trouble .....................................................................................118

3.14 Vibrator Troubleshooting ..............................................................122

3.15 Gyro Sensor troubleshooting ......................................................125

3.16 Accelerometer Sensor troubleshooting ..................................127

3.17 Compass sensor troubleshooting ..............................................129

3.18 Proximity Sensor on/o trouble .................................................131

3.19 Light Sensor on/o trouble ..........................................................134

3.20 Power ON Troubleshooting ..........................................................137

3.21 Charging Troubleshooting ............................................................140

3.22 USB Trouble shooting .....................................................................142

3.23 HDMI Troubleshooting ...................................................................144

3.24 FM Radio Troubleshooting ............................................................146

4. DOWNLOAD .......................................................................149

5. BLOCK DIAGRAM ..............................................................166

6. CIRCUIT DIAGRAM ............................................................176

7. BGA PIN MAP .....................................................................196

8. PCB LAYOUT .......................................................................217

9. CALIBRATION .....................................................................228

10. NAM INPUT METHOD .....................................................247

11. DISASSEMBLE GUIDE ......................................................254

12. EXPLODED VIEW & REPLACEMENT PART LIST .............261

LGE Internal Use Only

- 2 -

Only for training and service purposes

1. INTRODUCTION

1. Introduction

1. 1 Purpose

1. INTRODUCTION

This manual provides the information necessary to repair, calibration, description and download the features of this model.

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 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 Limitation

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.

LGE Internal Use Only

- 3 -

Only for training and service purposes

1. INTRODUCTION

1. Introduction

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

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. information is ESD handling: Following

• 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.

LGE Internal Use Only

- 4 -

Only for training and service purposes

2. PERFORMANCE

LS980 Product SPEC

2.1 Product Name

LS980 : US Cellular(BC10 Support)/US PCS(EVDO Rev_0 /Rev_A) /LTE B25,B26,B41

WCDMA B1,B2,B5/GSM Quadband

2.2 Supporting Standard

2.1 Product Name

2. PERFORMANCE

LS980 : US Cellular(BC10 Support)/US PCS(EVDO Rev_0 /Rev_A) /LTE B25,B26,B41 WCDMA B1,B2,B5/GSM Quadband

2.2 Supporting Standard

Supporting Standard

Item Feature Comment

US Cellular(BC10 Support )/ US PCS/GPS

LTE B25, B26, B41

WCDMA B1,B2,B5

GSM Quad-Band

US Cellular TX : 816 ~ 848.19 MHz

US Cellular RX : 861~893.19 MHz

US PCS TX : 1850~1910 MHz

US PCS RX : 1930~1990 MHz

LTE B25 TX : 1850~1915 MHz

LTE B25 RX : 1930~1995 MHz

LTE B26 TX : 814~849 MHz

LTE B26 RX : 859~894 MHz

LTE B41 TX/RX : 2496~2690 MHz

Roaming

Frequency Range

WCDMA B1 TX : 1920~1980 MHz

WCDMA B1 RX : 2110~2170 MHz

WCDMA B2 TX : 1850~1910 MHz

WCDMA B2 RX : 1930~1990 MHz

WCDMA B5 TX : 824~849 MHz

WCDMA B5 RX : 869~894 MHz

GSM850 TX : 824~849 MHz

GSM850 RX : 869~894 MHz

GSM900 TX : 880~915 MHz

GSM900 RX : 921~960 MHz

GSM1800 TX : 1710~1785 MHz

GSM1800 RX : 1805~1880 MHz

GSM1900 TX : 1850~1910 MHz

GSM1900 RX : 1930~1990 MHz

GPS : 1575.42 MHz

LGE Internal Use Only

- 5 -

Only for training and service purposes

LS980 Product SPEC

2.3 Functions of Major Semi-Conductors

Classification Function

MSM8974 Digital Baseband Processor 4G

WTR1605L-1 4G MODEM

PM9841 PMIC

PM8841 PMIC

H9CKNNNBPTMRLR Mobile SDRAM(LPDDR3)

LBEH5DPYJC-620 BT/WLAN Tranceiver

2. PERFORMANCE

LGE Internal Use Only

- 6 -

Only for training and service purposes

2. PERFORMANCE

LS980 Product SPEC

2.4 HW Features

Item Feature Comment

Form Factor DOP

Battery 1) Capacity

Size Standard : 138.5 X 70.9 X 8.9

Weight 141g(Battery)

LCD Full HD IPS LCD

Built-in Camera 13M AF(OIS) + 2.4M VT

Keypad Full Touch Screen

ANT Main : Internal Fixed Type

System connector u-USB

Ear Phone Jack 3.5Φ Ear Jack

Memory 16Gb(SDRAM LPDDR3)

Speech coding SILK,QCELP, EVRC, EVRC-B, EVRC-WB, G.711,

Vibrator Built in Vibrator

Blue Tooth Bluetooth 4.0+EDR

MIDI(for Buzzer

Function)

Music Player MP3, AC3, eAC3, AAC, (e)AAC+, WMA, FLAC,

Video Player MPEG4, H.264

Camcorder MPEG4 or H.263

Voice Recording Yes

Speaker Phone mode

Support

Travel Adapter Yes

CDROM No

Stereo Headset No

Data Cable Yes

Standard : Li-Ion Polymer, 3000mAh

2) Packing Type : Soft Pack Embeded

(5.2”, 1920 X 1280 Pixels)

Back Side Key :

Back Side Key : 3

Volume up/down

+ 32GB eMMC

G.729A/AB, GSM-FR/EFR/HR, AMR

(Linear Motor Type)

SW Decoded 64Poly

AMR, EVRC, QCELP, OGG, MIDI, PCM

Yes

Power On,

T-Flash

(External Memory)

LGE Internal Use Only

No 32GB eMMC embeded

- 7 -

Only for training and service purposes

2. PERFORMANCE

LS980 Product SPEC

2.5 SW Features

Item Feature Comment

RSSI 0 ~ 7 Levels

Battery Charging 0 ~ 7 Levels

Key Volume 0 ~ 7 Level

Audio Volume 0 ~ 15 Level

Time / Date Display Yes

Multi-Language Yes

Quick Access Mode

PC Sync No

Speed Dial Yes Voice mail center -> 1 key

Profile Yes

Phone / Messaging / Browser /

Contacts

English,Spanish,Korean,

Chineses(CN,TW)

It is editable by users.

not same with feature phone

setting

CLIP / CLIR NO

Name / Number / Email / Website /

Phone Book

Last Dial Number Yes

Last Received

Number

Last Missed Number Yes

Search by Number

/ Name

Group Yes

Postal addresses / Organizations /

Groups / Birthday Notes / Ringtone

Yes

Name / Number

There is no limitation on the

number of items. It depends on

available memory amount.

There is no limitation on the

number of items. It depends on

available memory amount..

There is no limitation on the

number of items. It depends on

available memory amount...

There is no limitation on the

number of items. It depends on

available memory amount...

Email , Nick name, AIM and the

other fields listed on the contacts

There is no limitation on the

number of items. It depends on

available memory amount.

are also searchable.

LGE Internal Use Only

- 8 -

Only for training and service purposes

LS980 Product SPEC

Fixed Dial Number No

Service Dial Number No

Own Number No

Voice Memo No Only Support Voice Command

Call Reminder No

Network Selection Automatic

Mute Yes

Call Divert No

Call Barring No

2. PERFORMANCE

Call Charge (AoC) No

Call Duration No

There is no limitation on the number

SMS (EMS)

SMS Over GPRS No

EMS Melody / Picture No

Send / Receive / Save Yes

MMS MPEG4

Send / Receive / Save

Long Message MAX 761 characters SMS 5 concatenated

Cell Broadcast Yes

Download Yes

Game No

Calendar Yes

of items. It depends on available

memory amount.

Yes

EMS does not support.

Memo Yes

World Clock Yes

Unit Convert No

Stop Watch Yes It is included on Alarm/Clock

LGE Internal Use Only

- 9 -

Only for training and service purposes

LS980 Product SPEC

Wall Paper Yes

2. PERFORMANCE

WAP Browser No

Download Melody /

Wallpaper

SIM Lock No

SIM Toolkit No

MMS Yes

Camera Yes

JAVA No Android do not support JAVA

Voice Dial Yes

IrDa No

Bluetooth Yes Ver. 4.0

FM radio No

WAP stack and wml are not

supported.

Yes Over web browser

13M AF

VT : 2.1 MP

GPRS Yes Class 10

EDGE Yes Class 10

Hold / Retrieve Yes

Conference Call Yes Max. 3

DTMF Yes

Memo pad Yes

TTY Yes

AMR Yes

SyncML No

IM Yes Hangout

Email Yes

LGE Internal Use Only

- 10 -

Only for training and service purposes

LS980 Product SPEC

2.6 Battery Bar

2. PERFORMANCE

Battery Bar

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 2% -> 1%

Bar 11 -> Bar 10 53% -> 52% Low battery pop-up 15% , 5%, 1%

Specification

Battery Bar

Specification

Bar 10 -> Bar 9 48% -> 47%

LGE Internal Use Only

- 11 -

Only for training and service purposes

LS980 Product SPEC

2.7 Figures

2.7 LG980 Figures

2. PERFORMANCE

LGE Internal Use Only

- 12 -

Only for training and service purposes

3. TROUBLE SHOOTING

3.1 RF Component

3. TROUBLE SHOOTING

U1001 B1,B2,

B5 GSM

Quard HCPA

U1002 B1,B2,

B5 GSM_

Quard FEMid

TOP

U1008

B41 Tx SAW

U1007 B41

PAM

LGE Internal Use Only

- 13 -

Only for training and service purposes

3. TROUBLE SHOOTING

21

1. U2002 : RF Tranceiver

2. FL2002 : Drx Separator

3. FL2003 : BC1,B25 Drx SAW

4. U1004 : BC0,BC10 B26 PAM

5. U1009 : Quadplexer

6. FL1004 : BC0,BC10,B26 Tx SAW

7. U1000 : Separator

8. U1003 : BC1,B25 PAM

9. FL2010 : BC0,BC10B5,B26 G850 Prx Separator

10. FL100 : 1BC1,L25 B2 Prx Separator

11. U1006 : B41 Prx SAW

20

BOT

2

6

4

5

7

3

1

9

10

8

13

14

12. U1010 : B41 Tx/Rx Separator

13. SW1001 : RF Switch

14. SW1000 : RF Switch

15. SW1002 : RF Switch

16. SW1003 : RF Switch

17. FL1007 : B41 Balun

18. FL2005 : BC0, BC10 Drx SAW

19. FL2001 : B41 Drx SAW

20. U1005 : DC-DC Convertor

21. U2011 : DC-DC Convertor

19

18

17

11

15

12

16

LGE Internal Use Only

- 14 -

Only for training and service purposes

C9035

VA10010

L2014

L2013

R3022

R3023

C9033

ANT2002

FL9001

FB10006

SW2001

VA10011

C10033

C2012

VA10009

C9001

ZD9005

R2009

L2012

L2022

L2050

C2010

C2084

C2016

C2018

L2007

L2021

C2024

R2001

U2001

GSP LNA

U2001

3. TROUBLE SHOOTING

C10029

C2021

L2024

ANT2004 C-Cilp

ANT2004

ANT2005 C-Clip

ANT2005

C2027

C2025

L2026

U2000 B41

DRx SAW

U2000

SW2002

RF Switch

C2082

SW2002

BOT-GPS

C2023

C2006

R2000

C2022

C2008

C2026

L2025

C2020

FL2004 B41,

GPS Separator

FL2004

C9027

L2027

U9006

C9032

U9004

C9031

LGE Internal Use Only

30 16

CN305

D103

D102

FL102

C132

D104

D105

CN100

15

FL103

BC0,BC1,BC10,

B1,B2,B5,B25,B26

ANT200

FPCB

SW202

C202

C200

C201

- 15 -

34

FB204

FB200

C215

CN302

R212

C207

FB203

C209

17

VA203

VA202

VA204

18

MIC200

C213

ZD205

FB207

CN306

R214

ZD201

C210

L202

FB201

R213

ZD203

ZD204

C211

ZD202

SW203

C205

C206

B41

C204

ANT205

C203

ANT206

Only for training and service purposes

3. TROUBLE SHOOTING

Reference Description

FL1001 BC1,B2,B25 PRx Separator

FL1004 BC0,BC10,B26 Tx SAW

FL1007 B41 PRx Balun

FL2001 B41 DRx Balun

FL2002 BC0,BC1,BC10,B25,B26 DRx Separator

FL2003 BC1,B25 DRx SAW

FL2004 B41,GPS Separator

FL2005 BC0,BC10,B26 DRx SAW

FL2007 BC1,B1,B2,B25 Tx Separator

FL2010 BC0,BC10,B5,B26,G850 PRx Separator

SW1000 RF Switch

SW1001 RF Switch

SW1002 RF Switch

SW1003 RF Switch

U1000 BC0,BC1,BC10,B1,B2,B5,GSM Quad Separator

U1001 B1,B2,B5,GSM Quad HCPA

U1002 B1,B2,B5,GSM Quad FEMid

U1003 BC1,B25 PAM

U1004 BC0,BC1,B26 PAM

U1005 DC-DC convertor

U1006 B41 PRx SAW

U1007 B41 PAM

U1008 B41 Tx SAW

U1009 BC0,BC1,BC10,B25,B26 Quadplexer

U1010 B41 TRx Separator

U1011 DC-DC Convertor

U2000 B41 DRx SAW

U2001 GPS LNA

U2002 RF Transceiver

LGE Internal Use Only

- 16 -

Only for training and service purposes

3.2 Signal Path

WCDMA Tx ow

3. TROUBLE SHOOTING

LGE Internal Use Only

WCDMA B1, B5 and B2 TX Signal PATH

1. WCDMA B1 TX PATH

2. WCDMA B5 TX PATH

3. WCDMA B2 TX PATH

4. COMMON TX/RX PATH

- 17 -

Only for training and service purposes

WCDMA RX ow

3. TROUBLE SHOOTING

LGE Internal Use Only

WCDMA B1, B5 and B2 RX Signal PATH

1. WCDMA B1 RX PATH

2. WCDMA B5 RX PATH

3. WCDMA B2 RX PATH

4. COMMON TX/RX PATH

- 18 -

Only for training and service purposes

GSM Tx/Rx ow

3. TROUBLE SHOOTING

LGE Internal Use Only

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

1. GSM850/GSM900 TX PATH

2. DCS1800/PCS1900 TX PATH

3. GSM900 RX PATH

4. GSM850 RX PATH

5. DCS1800/PCS1900 RX PATH

6. COMMON RX/TX PATH

- 19 -

Only for training and service purposes

3. TROUBLE SHOOTING

3.3 Checking XO Block

The output frequency (19.2MHz) of XO (X6000) is used as the eference one of WTR1605L(U2002) and PM8941(U6001) internal VCO.

TP2

U2002

BOT

TOP

TP1

X6000

LGE Internal Use Only

- 20 -

Only for training and service purposes

Schematic of the Crystal Part (19.2MHz

13'1/21

R6041

C6026

0.1u

DNI

C6027

1n

X1E0002910001

XTAL1

19.2MHz

GND/Therm

XTAL2Thermistor

X6000

3. TROUBLE SHOOTING

VREF_XO

TP1

DNI R6042

XO_THERM GND_XOADC

XTAL_19M_IN XTAL_19M_OUT

XTAL_32K_IN XTAL_32K_OUT

DNC4

DNC5 GP_DATA2 GP_DATA1 GP_DATA0

XO_IN

VTUNE_PRX

RBIAS

DNC3

96 114 88 121 105

120 79

60

R2008 4.75K

93

WTR0_GPDATA1 WTR0_GPDATA0

TP2

DNIC2077

2

1

100pC2076

XO_OUT_A0

LGE Internal Use Only

- 21 -

Only for training and service purposes

Flow chart for the troubleshooting

Check TP1

3. TROUBLE SHOOTING

19.2MHz Signal

Check TP2

19.2MHz Signal

XO OK

YES

NO

OKCheck the X6000

X6000Check the U6001

LGE Internal Use Only

- 22 -

Only for training and service purposes

3.4 Checking U1000

L1061 DNI

Check the supply voltage and control level for U1000

3. TROUBLE SHOOTING

SW1001 MS-156C

ANT

1

COMMON

G3 G4

43

TP1

U1000

TP2

TP3

BOT

12

10

13

L1001

100n

C1001 1n

L1002

DNI

ANT

2

RF2

11

2

GND6

GND7

U1000

RF1602

CTRL

7

GND5

GND4

EN

TP2

C1096

C1095

100p

8

463

GND3

GND2

VBATT

9

TP1

1

GND1

RF1

C1097

10n

5

B25,B26

BC0,BC1,BC10

LGE Internal Use Only

- 23 -

GRFC20_SW

GRFC21_SW

TP3

+3V0_VREG_L16

C1109

1.5n

GSM QuadB1,B2,B5

Only for training and service purposes

-True Table

3. TROUBLE SHOOTING

VBATT EN CTRL

RF1 High High Low

RF2 High High High

Check TP1

TP1>2.7V

Check TP3

TP3 >High

Check TP2

TP3 >High

YES

NO

TP2 Check the Power ON

Check the U1000

Global Path OPEN

LGE Internal Use Only

CDMA

YES

Path OPEN

- 24 -

Only for training and service purposes

3.5 Checking WCDMA Block

3. TROUBLE SHOOTING

START

Check XO (19.2MHz) Block

Refer to 3.3

BoardCheck the U1000

Refer to 3.4

Check T/RX Level

Re-Download & Cal

Change the Board

LGE Internal Use Only

- 25 -

Only for training and service purposes

3.5.1 Checking XO (19.2MHz) Block

Refer to 3.3

3.5.2 Checking the U1000

Refer to 3.4

3.5.3 Checking RF TX Level

WCDMA B1

3. TROUBLE SHOOTING

TP3

U1000

TP1

BOT

TP2

LGE Internal Use Only

TOP

- 26 -

Only for training and service purposes

3. TROUBLE SHOOTING

SW1001 MS-156C

ANT

1

TX_ANT_B1

TX_ANT_B2

TX_ANT_B5

TX_ANT_GSMHB

TX_ANT_GSMLB

COMMON

G3 G4

43

2

TP1

C1015

3.3n

L1008

0.5p

C1016

1.8n

L1010

DNI

L1065

1.5n

L1066

DNI

C1002

2.2n

L1000 DNI

C1010

3.3n

L1005

1.2p

C1001 1n

L1001

100n

TP2

B1

L1009

0.5p

B2

L1011 DNI

B5

L1067 DNI

G1800/G1900

L1003 DNI

G850/G900

L1006 DNI

L1002

DNI

VPA_GSM

C1000

10u

C1003

1n

C1095

100p

VPA

C1005

2.2u

C1012

1n

2

11

C1096

100p

ANT

RF2

35

34

33

32

31

30

29

28

27

26

25

24

23

22

10

12

13

GND6

GND5

GND7

U1000 RF1602

CTRL

7

GRFC21_SW

36

GND13

RFOUT_B1 NC4 RFOUT_B3/B4 RFOUT_B2 RFOUT_B5 NC3 RFOUT_B8 VCC1

ACPM-7700-TR1

VCC2 VCC_GSM GND12 RFOUT_GSM_HB GND11 RFOUT_GSM_LB

GND10

GND4

GND3

GND1

GND2

RF1

VBATT

EN

8

9

GRFC20_SW

+3V0_VREG_L16

CPL_GLOBAL

GND14

GND15

GND17

GND16

CPL_OUT

RFIN_B1_B2 RFIN_B3_B4

RFIN_B5_B8

U1001

RFIN_GSM_HB RFIN_GSM_LB

GND6

GND7

GND8

GND9

GND5

16

17

202119

15463

C1097

10n

+1V8_VREG_S3A

43424140393738

PGND

GND18

1

3

NC1

4

5

NC2

6

VIO

7

GND1

8

SCLK

9

SDATA

10

GND2

11

VBATT

12

GND3

13

14

GND4

15218

C1109

1.5n

RF1 (CDMA)

RF2 (Global)

TX_ANT_BC0_BC1_BC10_B25_B26

L1061 DNI

+VPWR_RF

C1004

10u

C1013

1n

C1020

33p

L1015

H

L1007

C1008

33p

TP3

C1113

33p

C1021

33p

DNI

33pC102533pC1024

L1017 DNI

1.5n

C1009

L1004

DNI

L1064 DNI

RFFE1_CLK

RFFE1_DATA

TX_OUT_GSMHB

TX_OUT_GSMLB

CTRLENPath

LH

H

C1011

1.5n

C1014

DNI

33p

TX_OUT_B1_B2

C1114

TX_OUT_B5

33p

LGE Internal Use Only

- 27 -

Only for training and service purposes

Check the U1000

Check TP1 Over 21dBm?

No

Check TP2 Over 21dBm?

3. TROUBLE SHOOTING

Yes

RF TX Level is OK

Yes

Check the U1002(FEMid)

No

Yes

Check TP3 Over -3dBm?

No

Check the U2002

(WTR1605L)

First, Check the conducted Max. Power using the RF Connector

Check U1001(PAM)

LGE Internal Use Only

- 28 -

Only for training and service purposes

WCDMA B2

3. TROUBLE SHOOTING

U1000

TP1

TP3

BOT

TP2

TOP

LGE Internal Use Only

- 29 -

Only for training and service purposes

3. TROUBLE SHOOTING

SW1001 MS-156C

ANT

1

TX_ANT_B1

TX_ANT_B2

TX_ANT_B5

TX_ANT_GSMHB

TX_ANT_GSMLB

COMMON

G3 G4

43

2

TP1

C1015

3.3n

L1008

0.5p

C1016

1.8n

L1010

DNI

L1065

1.5n

L1066

DNI

C1002

2.2n

L1000 DNI

C1010

3.3n

L1005

1.2p

C1001 1n

L1001

100n

B1

L1009

0.5p

TP2

B2

L1011 DNI

B5

L1067 DNI

G1800/G1900

L1003 DNI

G850/G900

L1006 DNI

L1002

DNI

VPA_GSM

C1000

10u

C1003

1n

C1095

100p

VPA

C1005

2.2u

C1012

1n

2

11

C1096

100p

ANT

RF2

35

34

33

32

31

30

29

28

27

26

25

24

23

22

10

12

13

GND6

GND5

GND7

U1000 RF1602

CTRL

7

GRFC21_SW

36

GND13

RFOUT_B1 NC4 RFOUT_B3/B4 RFOUT_B2 RFOUT_B5 NC3 RFOUT_B8 VCC1

ACPM-7700-TR1

VCC2 VCC_GSM GND12 RFOUT_GSM_HB GND11 RFOUT_GSM_LB

GND10

GND4

GND3

GND1

GND2

RF1

VBATT

EN

8

9

GRFC20_SW

+3V0_VREG_L16

CPL_GLOBAL

GND14

GND15

GND17

GND16

CPL_OUT

RFIN_B1_B2 RFIN_B3_B4

RFIN_B5_B8

U1001

RFIN_GSM_HB RFIN_GSM_LB

GND6

GND7

GND8

GND9

GND5

16

17

202119

15463

C1097

10n

+1V8_VREG_S3A

43424140393738

PGND

GND18

1

3

NC1

4

5

NC2

6

VIO

7

GND1

8

SCLK

9

SDATA

10

GND2

11

VBATT

12

GND3

13

14

GND4

15218

C1109

1.5n

RF1 (CDMA)

RF2 (Global)

TX_ANT_BC0_BC1_BC10_B25_B26

L1061 DNI

+VPWR_RF

C1004

10u

C1013

1n

C1020

33p

L1015

H

L1007

C1008

33p

TP3

C1113

33p

C1021

33p

DNI

33pC102533pC1024

L1017 DNI

1.5n

C1009

L1004

DNI

L1064 DNI

RFFE1_CLK

RFFE1_DATA

TX_OUT_GSMHB

TX_OUT_GSMLB

CTRLENPath

LH

H

C1011

1.5n

C1014

DNI

33p

TX_OUT_B1_B2

C1114

TX_OUT_B5

33p

LGE Internal Use Only

- 30 -

Only for training and service purposes

LG S980 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual