LG-G2-LS980_Servive manual

7/22/2019 LG-G2-LS980_Servive manual

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Internal Use Only

Service ManualLG-LS980

Date: August, 2013 / Issue 0.9


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- 2 - Copyright 2013 LG Electronics. Inc. All right reserved.Only for training and service purposes

LGE Internal Use Only

Table Of Contents

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

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

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

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&LTE) ................................................................ 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 ......................................................1253.16 Accelerometer Sensor troubleshooting ..................................127

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

3.18 Proximity Sensor on/off trouble .................................................131

3.19 Light Sensor on/off 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


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1. INTRODUCTION

1. INTRODUCTION

This manual provides the information necessary to repair, calibration, description and download the features

of this model.

1. 1 Purpose

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.

1. 2 Regulatory Information

A. Security

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 thesechanges 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.


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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.

ATTENTION

H. Electrostatic Sensitive Devices

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.

A phone may interfere with sensitive laboratory equipment, medical equipment, etc. Interference from

unsuppressed engines or electric motors may cause problems.

G. Interference and Attenuation

F. Pictures

The pictures in this manual are for illustrative purposes only; your actual hardware may look slightly

different.


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2. PERFORMANCE



2. PERFORMANCE

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

Item Feature Comment

Supporting Standard

US Cellular(BC10 Support )/ US PCS/GPS

LTE B25, B26, B41WCDMA B1,B2,B5

GSM Quad-Band

RoamingRoaming

Frequency Range

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

WCDMA B1 TX : 1920~1980 MHz

WCDMA B1 RX : 2110~2170 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


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2. PERFORMANCE



Classification Function

MSM8974 Digital Baseband Processor 4G

WTR1605L-1 4G MODEM

PM9841 PMIC

PM8841 PMIC

H9CKNNNBPTMRLR Mobile SDRAM(LPDDR3)

LBEH5DPYJC-620 BT/WLAN Tranceiver

2.3 Functions of Major Semi-Conductors


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2. PERFORMANCE



2.4 HW Features


Form Factor DOP

Battery 1) Capacity

Standard : Li-Ion Polymer, 3000mAh

2) Packing Type : Soft Pack Embeded

Size Standard : 138.5 X 70.9 X 8.9

Weight 141g(Battery)

LCD Full HD IPS LCD

(5.2, 1920 X 1280 Pixels)

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

Keypad Full Touch Screen

Back Side Key : 3

Back Side Key :

Power On,

Volume up/down

ANT Main : Internal Fixed Type

System connector u-USB

Ear Phone Jack 3.5 Ear Jack

Memory 16Gb(SDRAM LPDDR3)

+ 32GB eMMC

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

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

Vibrator Built in Vibrator

(Linear Motor Type)

Blue Tooth Bluetooth 4.0+EDR

MIDI(for Buzzer

Function)

SW Decoded 64Poly

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

AMR, EVRC, QCELP, OGG, MIDI, PCM

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 No

Data Cable Yes

T-Flash

(External Memory)No 32GB eMMC embeded


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2. PERFORMANCE



2.5 SW Features


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 YesEnglish,Spanish,Korean,

Chineses(CN,TW)

Quick Access ModePhone / Messaging / Browser /

ContactsIt is editable by users.

PC Sync No

Speed Dial Yes Voice mail center -> 1 key

Profile Yes

not same with feature phone

setting

CLIP / CLIR NO

Phone Book

Name / Number / Email / Website /

Postal addresses / Organizations /

Groups / Birthday Notes / Ringtone

There is no limitation on the

number of items. It depends on

available memory amount.

Last Dial Number Yes



available memory amount..

Last ReceivedNumber

YesThere is no limitation on the


available memory amount...

Last Missed Number Yes



available memory amount...

Search by Number

/ NameName / Number

Email , Nick name, AIM and the

other fields listed on the contacts

are also searchable.

Group Yes



available memory amount.


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2. PERFORMANCE



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

Call Charge (AoC) No

Call Duration No

SMS (EMS)

There is no limitation on the number

of items.It depends on availablememory amount.

EMS does not support.

SMS Over GPRS No

EMS Melody / Picture No

Send / Receive / Save Yes

MMS MPEG4

Send / Receive / SaveYes

Long Message MAX 761 characters SMS 5 concatenated

Cell Broadcast Yes

Download Yes

Game No

Calendar Yes

Memo Yes

World Clock Yes

Unit Convert No

Stop Watch Yes It is included on Alarm/Clock


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2. PERFORMANCE



Wall Paper Yes

WAP Browser NoWAP stack and wml are not

supported.

Download Melody /

WallpaperYes Over web browser

SIM Lock No

SIM Toolkit No

MMS Yes

Camera Yes13M AF

VT : 2.1 MP

JAVA No Android do not support JAVA

Voice Dial Yes

IrDa No

Bluetooth Yes Ver. 4.0

FM radio No

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


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2. PERFORMANCE



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 2% -> 1%

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

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

2.6 Battery Bar


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2. PERFORMANCE



2.7 LG980 Figures


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3. TROUBLE SHOOTING



3. TROUBLE SHOOTING

3.1 RF Component

TOP

U1001 B1,B2,

B5 GSM

Quard HCPA

U1002 B1,B2,

B5 GSM_

Quard FEMid

U1008

B41 Tx SAW

U1007 B41

PAM


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3. TROUBLE SHOOTING



BOT

1

23

4

5

6

7

8

9 1011

12

13 14

15

16

17

18

2021

19

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

12. U1010 : B41 Tx/Rx Separator

13. SW1001 : 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


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3. TROUBLE SHOOTING



ANT2005 C9027

ANT2004

C2025

C2024

U9006

L20

L2024

C2008

L2026

U2001L2007

C90

C2016

U9004

R2001

L2027

SW2001

C9032

C2022

C2084

L2025C2023

C2026

SW2002

C2027

C2006

L2021

L20

C9031

L2022

FL2004

C2020

U2000

C2018

C2021

C10029

C2082

R2000

U2001

GSP LNA

U2000 B41

DRx SAW FL2004 B41,GPS Separator

ANT2004 C-Cilp

ANT2005 C-Clip

SW2002

RF Switch

1817

34

30 16

15

ANT200

ANT206

FL103

MIC200

ZD202

CN306

C132

C204

C209

CN302

FB204

FB203

ZD203

ZD205

FB207

ZD204

C202

C210

C201

D102 C

205

VA202

R213

D105

C215

C206

D103

VA204

C213

D104

ANT205

C203

CN100

CN305

VA203

FB200

FL102

ZD201

R214

SW202

C211

FB201 L202

SW203

C200

C207

R212SW202

BC0,BC1,BC10,

B1,B2,B5,B25,B26

SW203B41

FPCB

BOT-GPS


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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 SwitchU1000 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


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3. TROUBLE SHOOTING



3.2 Signal Path

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

WCDMA Tx flow


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3. TROUBLE SHOOTING



WCDMA B1, B5 and B2 RX Signal PATH

1. WCDMA B1 RX PATH

2. WCDMA B5 RX PATH3. WCDMA B2 RX PATH

4. COMMON TX/RX PATH

WCDMA RX flow


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3. TROUBLE SHOOTING



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 PATH5. DCS1800/PCS1900 RX PATH

6. COMMON RX/TX PATH

GSM Tx/Rx flow


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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.

BOT

TOP

X6000

TP1

U2002

TP2


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3. TROUBLE SHOOTING



Schematic of the Crystal Part (19.2MHz

X1E0002910001

19.2MHz

X6000

XTAL1 GND/Therm

XTAL2Thermistor

C6026

0.1u 1n

C6027

R6041

DNI

DNI

R6042

GND_XOADC

XTAL_19M_IN

XTAL_19M_OUT

XTAL_32K_IN

XTAL_32K_OUT

VREF_XO

XO_THERM

13'1/21

TP1

R2008 4.75K

100pC2076

DNI

C2077

1

2

93

60

79

120

105

121

88

114

96DNC4

DNC5

GP_DATA2GP_DATA1

GP_DATA0

XO_IN

VTUNE_PRX

RBIAS

DNC3

WTR0_GPDATA0

WTR0_GPDATA1

XO_OUT_A0

TP2


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3. TROUBLE SHOOTING



Check TP1

YES

YES

XO OK

NO

NO

19.2MHz Signal

OKCheck the X6000

X6000Check the U600119.2MHz Signal

Check TP2

Flow chart for the troubleshooting


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3. TROUBLE SHOOTING



3.4 Checking U1000

Check the supply voltage and control level for U1000

BOT

U1000

TP2TP1

TP3

L1002

DNI100n

L1001

SW1001 MS-156C

43

2

1ANT COMMON

G3 G4

+3V0

_VREG

_L16

C1095

1 00 p 1 00 p

C1096

10n

C1097

C1109

1.5n

U1000RF1602

7 8 9

10

11

12

2

13

1

5

46 3

GND2

GND4

GND3

RF1

GND1

GND7

ANT

GND6

RF2

GND5

VBATT

EN

CTRL

C1001 1n

GRFC20

_SW

GRFC21

_SW

TP1TP2

TP3

BC0,BC1,BC10

B25,B26

GSM

QuadB1,B2,B5


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3. TROUBLE SHOOTING



-True Table

VBATT EN CTRL

RF1 High High Low

RF2 High High High

Check TP1

YES

YES

YES

CDMAPath OPEN

NO

NO

NO

TP1>2.7V

TP2 Check the Power ON

Check the U1000

Global Path OPEN

TP3 >High

TP3 >High

Check TP3

Check TP2


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3. TROUBLE SHOOTING



3.5 Checking WCDMA Block

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


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3. TROUBLE SHOOTING



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

BOT

TOP

U1000

TP1

TP3

TP2


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3. TROUBLE SHOOTING



1.5n

C1011

L1002

DNI100n

L1001

SW1001 MS-156C

43

2

1ANT COMMON

G3 G4

DNI

C1014

+3V0

_VRE

G_L

16

C1095

1 00 p 1 00 p

C1096

10n

C1097

C1109

1.5n

L1007

1.5n

L1061

DNI

U1000RF1602

7 8 9

10

11

12

2

13

1

5

46 3

GND2

GND4

GND3

RF1

GND1

GND7

ANT

GND6

RF2

GND5

VBATT

EN

CTRL

C1001 1n

GRFC20_S

W

GRFC21_S

W

TX_ANT_BC0_BC1_BC10_B25_B26

RF2 (Global)

RF1 (CDMA)

H

LH

CTRLENPath

H

TP1

L1008

0.5p 2.2u

C1005

1.5n

L1065

DNI

L1011L1010DNI

L1009

0.5p

C1002

2.2n

+1V8_VREG_S3A

3.3nC1010

C1003

1n

L1005

1.2p

10u

C1004

L1004

DNI

33pC1009C1008

33p

1.8n

C1016

L1015DNI

C1021

33p

C1020

33p

L1017

DNI

33pC102533pC1024

L1003

DNI

L1000

DNI

DNIL1006

C1013

1n

C1113

33p

C1114

33p

VPA

+VPWR_RF

VPA_GSM

C1012

1n

C1000

10u

L1064

DNI

DNIL1066 L1067

DNI

U1001

ACPM-7700-TR1

43

42

41

40

39

37

38

35

36

34

26

27

28

29

30

31

32

33

23

22

9

12

7

20

21

19

15

2

18

8

10

11

14

16

17

13

1

25

6

5

4

3

24RFOUT_GSM_HB

NC1

RFIN_B5_B8

NC2

VIO

GND12

RFIN_B1_B2

RFIN_GSM_HB

GND6

GND5

RFIN_GSM_LB

VBATT

GND2

SCLK

GND7

RFIN_B3_B4

GND4

GND8

GND10

GND9

GND1

GND3

SDATA

RFOUT_GSM_LB

GND11

RFOUT_B3/B4

RFOUT_B2

RFOUT_B5

NC3

RFOUT_B8

VCC1

VCC2

VCC_GSM

NC4

GND13

RFOUT_B1

GND14

CPL_

OUT

GND15

GND16

GND17

GND18

PGND

C1015

3.3n

RFFE1_DATA

RFFE1_CLK

TX_OUT_GSMHB

TX_OUT_GSMLB

TX_OUT_B1_B2

TX_ANT_GSMHB

TX_ANT_GSMLB

TX_ANT_B1

TX_ANT_B2

CPL_GLOBAL

TX_OUT_B5

TX_ANT_B5

B1

B2

G850/G900

G1800/G1900

B5

TP2

TP3


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3. TROUBLE SHOOTING



Check TP1 Over 21dBm?


Check TP3 Over -3dBm?

Yes

Yes

Yes

No

No

No

RF TX Level is OK

Check the U1002(FEMid)

Check U1001(PAM)

Check the U1000

Check the U2002

(WTR1605L)

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


29/261

3. TROUBLE SHOOTING



WCDMA B2

BOT

U1000

TP1

TOP

TP3

TP2


30/261

3. TROUBLE SHOOTING



1.5n

C1011

L1002

DNI100n

L1001

SW1001 MS-156C

43

2

1ANT COMMON

G3 G4

DNI

C1014

+3V0

_VRE

G_L

16

C1095

1 00 p 1 00 p

C1096

10n

C1097

C1109

1.5n

L1007

1.5n

L1061

DNI

U1000RF1602

7 8 9

10

11

12

2

13

1

5

46 3

GND2

GND4

GND3

RF1

GND1

GND7

ANT

GND6

RF2

GND5

VBATT

EN

CTRL

C1001 1n

GRFC20_S

W

GRFC21_S

W


RF2 (Global)

RF1 (CDMA)

H

LH

CTRLENPath

H

TP1

L1008

0.5p 2.2u

C1005

1.5n

L1065

DNI

L1011L1010DNI

L1009

0.5p

C1002

2.2n

+1V8_VREG_S3A

3.3nC1010

C1003

1n

L1005

1.2p

10u

C1004

L1004

DNI

33pC1009C1008

33p

1.8n

C1016

L1015DNI

C1021

33p

C1020

33p

L1017

DNI

33pC102533pC1024

L1003

DNI

L1000

DNI

DNIL1006

C1013

1n

C1113

33p

C1114

33p

VPA

+VPWR_RF

VPA_GSM

C1012

1n

C1000

10u

L1064

DNI

DNIL1066 L1067

DNI

U1001

ACPM-7700-TR1

43

42

41

40

39

37

38

35

36

34

26

27

28

29

30

31

32

33

23

22

9

12

7

20

21

19

15

2

18

8

10

11

14

16

17

13

1

25

6

5

4

3

24RFOUT_GSM_HB

NC1

RFIN_B5_B8

NC2

VIO

GND12

RFIN_B1_B2

RFIN_GSM_HB

GND6

GND5

RFIN_GSM_LB

VBATT

GND2

SCLK

GND7

RFIN_B3_B4

GND4

GND8

GND10

GND9

GND1

GND3

SDATA

RFOUT_GSM_LB

GND11

RFOUT_B3/B4

RFOUT_B2

RFOUT_B5

NC3

RFOUT_B8

VCC1

VCC2

VCC_GSM

NC4

GND13

RFOUT_B1

GND14

CPL_

OUT

GND15

GND16

GND17

GND18

PGND

C1015

3.3n

RFFE1_DATA

RFFE1_CLK

TX_OUT_GSMHB

TX_OUT_GSMLB

TX_OUT_B1_B2

TX_ANT_GSMHB

TX_ANT_GSMLB

TX_ANT_B1

TX_ANT_B2

CPL_GLOBAL

TX_OUT_B5

TX_ANT_B5

B1

B2

G850/G900

G1800/G1900

B5

TP2

TP3


31/261

3. TROUBLE SHOOTING






Yes

Yes

Yes

No

No

No

RF TX Level is OK


Check U1001(PAM)

Check the U1000

Check the U2002

(WTR1605L)


32/261

3. TROUBLE SHOOTING



WCDMA B5

BOT

U1000

TP1

TOP

TP3

TP2


33/261

3. TROUBLE SHOOTING



1.5n

C1011

L1002

DNI100n

L1001

SW1001 MS-156C

43

2

1ANT COMMON

G3 G4

DNI

C1014

+3V0

_VRE

G_L

16

C1095

1 00 p 1 00 p

C1096

10n

C1097

C1109

1.5n

L1007

1.5n

L1061

DNI

U1000RF1602

7 8 9

10

11

12

2

13

1

5

46 3

GND2

GND4

GND3

RF1

GND1

GND7

ANT

GND6

RF2

GND5

VBATT

EN

CTRL

C1001 1n

GRFC20_S

W

GRFC21_S

W


RF2 (Global)

RF1 (CDMA)

H

LH

CTRLENPath

H

TP1

L1008

0.5p 2.2u

C1005

1.5n

L1065

DNI

L1011L1010DNI

L1009

0.5p

C1002

2.2n

+1V8_VREG_S3A

3.3nC1010

C1003

1n

L1005

1.2p

10u

C1004

L1004

DNI

33pC1009C1008

33p

1.8n

C1016

L1015DNI

C1021

33p

C1020

33p

L1017

DNI

33pC102533pC1024

L1003

DNI

L1000

DNI

DNIL1006

C1013

1n

C1113

33p

C1114

33p

VPA

+VPWR_RF

VPA_GSM

C1012

1n

C1000

10u

L1064

DNI

DNIL1066 L1067

DNI

U1001

ACPM-7700-TR1

43

42

41

40

39

37

38

35

36

34

26

27

28

29

30

31

32

33

23

22

9

12

7

20

21

19

15

2

18

8

10

11

14

16

17

13

1

25

6

5

4

3

24RFOUT_GSM_HB

NC1

RFIN_B5_B8

NC2

VIO

GND12

RFIN_B1_B2

RFIN_GSM_HB

GND6

GND5

RFIN_GSM_LB

VBATT

GND2

SCLK

GND7

RFIN_B3_B4

GND4

GND8

GND10

GND9

GND1

GND3

SDATA

RFOUT_GSM_LB

GND11

RFOUT_B3/B4

RFOUT_B2

RFOUT_B5

NC3

RFOUT_B8

VCC1

VCC2

VCC_GSM

NC4

GND13

RFOUT_B1

GND14

CPL_

OUT

GND15

GND16

GND17

GND18

PGND

C1015

3.3n

RFFE1_DATA

RFFE1_CLK

TX_OUT_GSMHB

TX_OUT_GSMLB

TX_OUT_B1_B2

TX_ANT_GSMHB

TX_ANT_GSMLB

TX_ANT_B1

TX_ANT_B2

CPL_GLOBAL

TX_OUT_B5

TX_ANT_B5

B1

B2

G850/G900

G1800/G1900

B5

TP2

TP3


34/261

3. TROUBLE SHOOTING






Yes

Yes

Yes

No

No

No

RF TX Level is OK


Check U1001(PAM)

Check the U1000

Check the U2002

(WTR1605L)


35/261

3. TROUBLE SHOOTING



3.5.4 Checking RF Rx Level

WCDMA B1

BOT

TP1

TP2


36/261

3. TROUBLE SHOOTING



1.5n

C1011

+3V0_VREG_L16+1V8_VREG_S3A

100p

C1007

100p

C1006

C10221n

2.2nC1031

C10352.2n

DNI

L1018

L1002

DNI

C10332.2n

L1016

5.1n

2.2nC1036

DNI

L1022

100n

L1001

L1021

10n

C1030

33p

33p

C1027

DNIL1019

LMSW6SGM-F12

U1002

46

45

44

43

42

41

17

40

13

12

18

26

19

31

21

20

38

39

3

28

1

27

2

11

4

22

5

23

24

34

25

32

33

29

35

30

36

16

8

15

10

14

9

37

7

6RX_BAND2_1

RX_BAND2_2

VIO

GSM_HB_RX_1

GND8

GSM_HB_RX_2

RX

_BAND5

_1

GND4

RX

_BAND5

_2

VDD

TRX3

GND14

GSM_LB_TX

GND13

GND12

TRX1

ANT

TX_BAND2

GND11

GND3

TX_BAND1

RX_BAND1_2

GND5

GND2

TX_BAND8

GND1

GSM_HB_TXRX_BAND1_1

SCLK

SDATA

GND10

TRX2

TRX4

RX

_BAND8

_2

TX_BAND5

RX

_BAND8

_1

GND6

GND7

GND15

GND9

GND16

GND17

GND18

GND19

GND20

GND21

C102612n

SW1001 MS-156C

43

2

1ANT COMMON

G3 G4

DNI

C1014

+3V0

_VREG

_L16

C10231n

C1095

1 0 0p 1 0 0p

C1096

10n

C1097

C1109

1.5n

L1007

1.5n

L1061

DNI

C102812n

U1000RF1602

7 8 9

10

11

12

2

13

1

5

46 3

GND2

GND4

GND3

RF1

GND1

GND7

ANT

GND6

RF2

GND5

VBATT

EN

CTRL

C1001 1n

GRFC20_

SW

GRFC21_

SW

RFFE2_CLK

RFFE2_DATA

PRX_B1_INP

PRX_B1_INM

PRX_G900_INM

PRX_G900_INP

TX_ANT_GSMHBTX_ANT_GSMLB

TX_ANT_B1

TX_ANT_B2

PRX_B2_INM

PRX_B2_INP

PRX_G1800_G1900_INM

PRX_G1800_G1900_INP

TX_ANT_B5

PRX_B5_G850_INP

PRX_B5_G850_INM


RF2 (Global)

RF1 (CDMA)

H

LH

CTRLENPath

H

TP1

TP2


37/261

3. TROUBLE SHOOTING



Check TP1 Signal Exist?


Yes

Yes

No

No

RF TX Level is OK


Check the U1000

Check the U2002

(WTR1605L)


38/261

3. TROUBLE SHOOTING



WCDMA B2

BOT

TOP

U2002

FL1001

TP1

TP3

TP2


39/261

3. TROUBLE SHOOTING



1.5n

C1011


100p

C1007

100p

C1006

C10221n

2.2nC1031

C10352.2n

DNI

L1018

L1002

DNI

C10332.2n

L1016

5.1n

2.2nC1036

DNI

L1022

100n

L1001

L1021

10n

C1030

33p

33pC1027

DNIL1019

LMSW6SGM-F12

U1002

46

45

44

43

42

41

17

40

13

12

18

26

19

31

21

20

38

39

3

28

1

27

2

11

4

22

5

23

24

34

25

32

33

29

35

30

36

16

8

15

10

14

9

37

7

6RX_BAND2_1

RX_BAND2_2

VIO

GSM_HB_RX_1

GND8

GSM_HB_RX_2

RX

_BAND5

_1

GND4

RX

_BAND5

_2

VDD

TRX3

GND14

GSM_LB_TX

GND13

GND12

TRX1

ANT

TX_BAND2

GND11

GND3

TX_BAND1

RX_BAND1_2

GND5

GND2

TX_BAND8

GND1

GSM_HB_TX

RX_BAND1_1

SCLK

SDATA

GND10

TRX2

TRX4

RX

_BAND8

_2

TX_BAND5

RX

_BAND8

_1

GND6

GND7

GND15

GND9

GND16

GND17

GND18

GND19

GND20

GND21

C102612n

SW1001 MS-156C

43

2

1ANT COMMON

G3 G4

DNI

C1014

+3V0

_VREG

_L16

C10231n

C1095

1 0 0p 1 0 0p

C1096

10n

C1097

C1109

1.5n

L1007

1.5n

L1061

DNI

C102812n

U1000RF1602

7 8 9

10

11

12

2

13

1

5

46 3

GND2

GND4

GND3

RF1

GND1

GND7

ANT

GND6

RF2

GND5

VBATT

EN

CTRL

C1001 1n

GRFC20_

SW

GRFC21_

SW

RFFE2_CLK

RFFE2_DATA

PRX_B1_INP

PRX_B1_INM

PRX_G900_INM

PRX_G900_INP

TX_ANT_GSMHB

TX_ANT_GSMLB

TX_ANT_B1

TX_ANT_B2

PRX_B2_INM

PRX_B2_INP

PRX_G1800_G1900_INM

PRX_G1800_G1900_INP

TX_ANT_B5

PRX_B5_G850_INP

PRX_B5_G850_INM


RF2 (Global)

RF1 (CDMA)

H

LH

CTRLENPath

H

TP1

TP2

FL1001

XMSSJE3G0PA-003TMP

3

9

7

5 6

1

4

10

8

2GND1

PORT1-

PORT3-

PORT2-

PORT3+

CTLPORT2+

PORT1+

VDD

GND2

+3V0_VREG_L16

100p

C1037 C1038

100p

33pC1034

33pC1029

L1020

5.6n

PRX_SW_SEL0

PRX_B25_BC1_INM

PRX_B25_BC1_INP

PRX_B2_INM

PRX_B2_INP

PRX_BC1_B2_B25_INP

PRX_BC1_B2_B25_INM

TP3


40/261

3. TROUBLE SHOOTING






Yes

Yes

Yes

No

No

No

RF TX Level is OK


Check the FL1001

Check the U1000

Check the U2002

(WTR1605L)


41/261

3. TROUBLE SHOOTING



WCDMA B5

BOT

TP1

TP2

TP3FL2010

U2002


42/261

3. TROUBLE SHOOTING



1.5n

C1011


100p

C1007

100p

C1006

C10221n

2.2nC1031

C10352.2n

DNI

L1018

L1002

DNI

C10332.2n

L1016

5.1n

2.2nC1036

DNI

L1022

100n

L1001

L1021

10n

C1030

33p

33pC1027

DNIL1019

LMSW6SGM-F12

U1002

46

45

44

43

42

41

17

40

13

12

18

26

19

31

21

20

38

39

3

28

1

27

2

11

4

22

5

23

24

34

25

32

33

29

35

30

36

16

8

15

10

14

9

37

7

6RX_BAND2_1

RX_BAND2_2

VIO

GSM_HB_RX_1

GND8

GSM_HB_RX_2

RX

_BAND5

_1

GND4

RX

_BAND5

_2

VDD

TRX3

GND14

GSM_LB_TX

GND13

GND12

TRX1

ANT

TX_BAND2

GND11

GND3

TX_BAND1

RX_BAND1_2

GND5

GND2

TX_BAND8

GND1

GSM_HB_TX

RX_BAND1_1

SCLK

SDATA

GND10

TRX2

TRX4

RX

_BAND8

_2

TX_BAND5

RX

_BAND8

_1

GND6

GND7

GND15

GND9

GND16

GND17

GND18

GND19

GND20

GND21

C102612n

SW1001 MS-156C

43

2

1ANT COMMON

G3 G4

DNI

C1014

+3V0

_VREG

_L16

C10231n

C1095

1 0 0p 1 0 0p

C1096

10n

C1097

C1109

1.5n

L1007

1.5n

L1061

DNI

C102812n

U1000RF1602

7 8 9

10

11

12

2

13

1

5

46 3

GND2

GND4

GND3

RF1

GND1

GND7

ANT

GND6

RF2

GND5

VBATT

EN

CTRL

C1001 1n

GRFC20_

SW

GRFC21_

SW

RFFE2_CLK

RFFE2_DATA

PRX_B1_INP

PRX_B1_INM

PRX_G900_INM

PRX_G900_INP

TX_ANT_GSMHB

TX_ANT_GSMLB

TX_ANT_B1

TX_ANT_B2

PRX_B2_INM

PRX_B2_INP

PRX_G1800_G1900_INM

PRX_G1800_G1900_INP

TX_ANT_B5

PRX_B5_G850_INP

PRX_B5_G850_INM


RF2 (Global)

RF1 (CDMA)

H

LH

CTRLENPath

H

TP1

TP2

+3V0_VREG_L16

L2036

DNI

C207233p

33pC2073

100pC2075C2074

100p

FL2010 XM0831SZ

3

9

7

5 6

1

4

10

8

2GND1

PORT1-

PORT3-

PORT2-

PORT3+

CTLPORT2+

PORT1+

VDD

GND2

14

5

13

4

12

3

11

2

69

78

54

61

43

48

3036

17

23 PRX_MB3_INM

PRX_MB2_INP

PRX_MB2_INM

PRX_MB1_INP

PRX_MB1_INM

PRX_LB3_INP

PRX_LB3_INM

PRX_LB2_INP

PRX_LB2_INM

PRX_LB1_INP

PRX_LB1_INM

DRX_HB_INP

DRX_HB_INM

DRX_MB_INP

DRX_MB_INM

DRX_LB2_INP

DRX_LB2_INM

DRX_LB1_INP

DRX_LB1_INM

PRX_B1_INM

PRX_G900_INM

PRX_G900_INP

PRX_G1800_G1900_INM

PRX_G1800_G1900_INP

PRX_BC1_B2_B25_INP

PRX_BC1_B2_B25_INM

PRX_B5_G850_INP

PRX_B5_G850_INM

DRX_HB_B41_INM

DRX_HB_B41_INP

PRX_SW_SEL1

PRX_B26_BC0_BC10_INP

PRX_B26_BC0_BC10_INM

DRX_MB_B25_BC1_INP

DRX_MB_B25_BC1_INM

DRX_LB_BC0_BC10_B26_INP

DRX_LB_BC0_BC10_B26_INM

H

Path

PRX_B26_BC0_BC10

PRX_B5_G850

CTLVDD

H H

L

TP3


43/261

3. TROUBLE SHOOTING






Yes

Yes

Yes

No

No

No

RF TX Level is OK


Check the FL2010

Check the U1000

Check the U2002

(WTR1605L)


44/261

3. TROUBLE SHOOTING



3.6 Checking GSM Block

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


45/261

3. TROUBLE SHOOTING



3.6.1 Checking TCXO Block

Refer to 3.3

3.6.2 Checking U1000

Refer to 3.4

3.6.3 Checking RF GSM850 & GSM900 TX level

BOT

TOP

U1000

TP1

TP2

TP3


46/261

3. TROUBLE SHOOTING






Yes

Yes

Yes

No

No

No

RF TX Level is OK


Check U1001(PAM)

Check the U1000

Check the U2002

(WTR1605L)

L1008

0.5p 2.2u

C1005

1.5n

L1065

DNI

L1011L1010DNI

L1009

0.5p

C1002

2.2n

+1V8_VREG_S3A

3.3nC1010

C1003

1n

L1005

1.2p

10u

C1004

L1004

DNI

33pC1009C1008

33p

1.8n

C1016

L1015DNI

C1021

33p

C1020

33p

L1017

DNI

33pC102533pC1024

L1003

DNI

L1000

DNI

DNIL1006

C1013

1n

C1113

33p

C1114

33p

VPA

+VPWR_RF

VPA_GSM

C1012

1n

C1000

10u

L1064

DNI

DNIL1066 L1067

DNI

U1001ACPM-7700-TR1

43

42

41

40

39

37

38

35

36

34

26

27

28

29

30

31

32

33

23

22

9

12

7

20

21

19

15

2

18

8

10

11

14

16

17

13

1

25

6

5

4

3

24RFOUT_GSM_HB

NC1

RFIN_B5_B8

NC2

VIO

GND12

RFIN_B1_B2

RFIN_GSM_HB

GND6

GND5

RFIN_GSM_LB

VBATT

GND2

SCLK

GND7

RFIN_B3_B4

GND4

GND8

GND10

GND9

GND1

GND3

SDATA

RFOUT_GSM_LB

GND11

RFOUT_B3/B4

RFOUT_B2

RFOUT_B5

NC3

RFOUT_B8VCC1

VCC2

VCC_GSM

NC4

GND13

RFOUT_B1

GND14

CPL_

OUT

GND15

GND16

GND17

GND18

PGND

C1015

3.3n

RFFE1_DATA

RFFE1_CLK

TX_OUT_GSMHB

TX_OUT_GSMLB

TX_OUT_B1_B2

TX_ANT_GSMHB

TX_ANT_GSMLB

TX_ANT_B1

TX_ANT_B2

CPL_GLOBAL

TX_OUT_B5

TX_ANT_B5

B1

B2

G850/G900

G1800/G1900

B5

TP2

TP3


47/261

3. TROUBLE SHOOTING



3.6.4 Checking RF DCS & PCS TX level

BOT

TOP

U1000

TP1

TP2TP3


48/261

3. TROUBLE SHOOTING






Yes

Yes

Yes

No

No

No

RF TX Level is OK


Check U1001(PAM)

Check the U1000

Check the U2002

(WTR1605L)

L1008

0.5p 2.2u

C1005

1.5n

L1065

DNI

L1011L1010DNI

L1009

0.5p

C1002

2.2n

+1V8_VREG_S3A

3.3nC1010

C1003

1n

L1005

1.2p

10u

C1004

L1004

DNI

33pC1009C1008

33p

1.8n

C1016

L1015DNI

C1021

33p

C1020

33p

L1017

DNI

33pC102533pC1024

L1003

DNI

L1000

DNI

DNIL1006

C1013

1n

C1113

33p

C1114

33p

VPA

+VPWR_RF

VPA_GSM

C1012

1n

C1000

10u

L1064

DNI

DNIL1066 L1067

DNI

U1001ACPM-7700-TR1

43

42

41

40

39

37

38

35

36

34

26

27

28

29

30

31

32

33

23

22

9

12

7

20

21

19

15

2

18

8

10

11

14

16

17

13

1

25

6

5

4

3

24RFOUT_GSM_HB

NC1

RFIN_B5_B8

NC2

VIO

GND12

RFIN_B1_B2

RFIN_GSM_HB

GND6

GND5

RFIN_GSM_LB

VBATT

GND2

SCLK

GND7

RFIN_B3_B4

GND4

GND8

GND10

GND9

GND1

GND3

SDATA

RFOUT_GSM_LB

GND11

RFOUT_B3/B4

RFOUT_B2

RFOUT_B5

NC3

RFOUT_B8VCC1

VCC2

VCC_GSM

NC4

GND13

RFOUT_B1

GND14

CPL_

OUT

GND15

GND16

GND17

GND18

PGND

C1015

3.3n

RFFE1_DATA

RFFE1_CLK

TX_OUT_GSMHB

TX_OUT_GSMLB

TX_OUT_B1_B2

TX_ANT_GSMHB

TX_ANT_GSMLB

TX_ANT_B1

TX_ANT_B2

CPL_GLOBAL

TX_OUT_B5

TX_ANT_B5

B1

B2

G850/G900

G1800/G1900

B5

TP2

TP3


49/261

3. TROUBLE SHOOTING



3.6.5 Checking RF DCS, PCS & GSM900 Rx Block

BOT

TP1

TP2

GSM900 DCS &PCS

U2002


50/261

3. TROUBLE SHOOTING





Yes

Yes

No

No

RF TX Level is OK


Check the U1000

Check the U2002

(WTR1605L)

1.5n

C1011


100p

C1007

100p

C1006

C10221n

2.2nC1031

C10352.2n

DNI

L1018

L1002

DNI

C10332.2n

L1016

5.1n

2.2nC1036

DNI

L1022

100n

L1001

L1021

10n

C1030

33p

33pC1027

DNIL1019

LMSW6SGM-F12

U1002

46

45

44

43

42

41

17

40

13

12

18

26

19

31

21

20

38

39

3

28

1

27

2

11

4

22

5

23

24

34

25

32

33

29

35

30

36

16

8

15

10

14

9

37

7

6RX_BAND2_1

RX_BAND2_2

VIO

GSM_HB_RX_1

GND8

GSM_HB_RX_2

RX

_BAND5

_1

GND4

RX

_BAND5

_2

VDD

TRX3

GND14

GSM_LB_TX

GND13

GND12

TRX1

ANT

TX_BAND2

GND11

GND3

TX_BAND1

RX_BAND1_2

GND5

GND2

TX_BAND8

GND1

GSM_HB_TX

RX_BAND1_1

SCLK

SDATA

GND10

TRX2

TRX4

RX

_BAND8

_2

TX_BAND5

RX

_BAND8

_1

GND6

GND7

GND15

GND9

GND16

GND17

GND18

GND19

GND20

GND21

C102612n

SW1001 MS-156C

43

2

1ANT COMMON

G3 G4

DNI

C1014

+3V0

_VREG

_L16

C10231n

C1095

1 0 0p 1 0 0p

C1096

10n

C1097

C1109

1.5n

L1007

1.5n

L1061

DNI

C102812n

U1000RF1602

7 8 9

10

11

12

2

13

1

5

46 3

GND2

GND4

GND3

RF1

GND1

GND7

ANT

GND6

RF2

GND5

VBATT

EN

CTRL

C1001 1n

GRFC20_

SW

GRFC21_

SW

RFFE2_CLK

RFFE2_DATA

PRX_B1_INP

PRX_B1_INM

PRX_G900_INM

PRX_G900_INP

TX_ANT_GSMHB

TX_ANT_GSMLB

TX_ANT_B1

TX_ANT_B2

PRX_B2_INM

PRX_B2_INP

PRX_G1800_G1900_INM

PRX_G1800_G1900_INP

TX_ANT_B5

PRX_B5_G850_INP

PRX_B5_G850_INM


RF2 (Global)

RF1 (CDMA)

H

LH

CTRLENPath

H

TP1

TP2


51/261

3. TROUBLE SHOOTING



3.6.6 Checking RF GSM850 Rx Block

BOT

TP1

TP3

TP2FL2010

U2002


52/261

3. TROUBLE SHOOTING



1.5n

C1011


100p

C1007

100p

C1006

C10221n

2.2nC1031

C10352.2n

DNI

L1018

L1002

DNI

C10332.2n

L1016

5.1n

2.2nC1036

DNI

L1022

100n

L1001

L1021

10n

C1030

33p

33pC1027

DNIL1019

LMSW6SGM-F12

U1002

46

45

44

43

42

41

17

40

13

12

18

26

19

31

21

20

38

39

3

28

1

27

2

11

4

22

5

23

24

34

25

32

33

29

35

30

36

16

8

15

10

14

9

37

7

6RX_BAND2_1

RX_BAND2_2

VIO

GSM_HB_RX_1

GND8

GSM_HB_RX_2

RX

_BAND5

_1

GND4

RX

_BAND5

_2

VDD

TRX3

GND14

GSM_LB_TX

GND13

GND12

TRX1

ANT

TX_BAND2

GND11

GND3

TX_BAND1

RX_BAND1_2

GND5

GND2

TX_BAND8

GND1

GSM_HB_TX

RX_BAND1_1

SCLK

SDATA

GND10

TRX2

TRX4

RX

_BAND8

_2

TX_BAND5

RX

_BAND8

_1

GND6

GND7

GND15

GND9

GND16

GND17

GND18

GND19

GND20

GND21

C102612n

SW1001 MS-156C

43

2

1ANT COMMON

G3 G4

DNI

C1014

+3V0

_VREG

_L16

C10231n

C1095

1 0 0p 1 0 0p

C1096

10n

C1097

C1109

1.5n

L1007

1.5n

L1061

DNI

C102812n

U1000RF1602

7 8 9

10

11

12

2

13

1

5

46 3

GND2

GND4

GND3

RF1

GND1

GND7

ANT

GND6

RF2

GND5

VBATT

EN

CTRL

C1001 1n

GRFC20_

SW

GRFC21_

SW

RFFE2_CLK

RFFE2_DATA

PRX_B1_INP

PRX_B1_INM

PRX_G900_INM

PRX_G900_INP

TX_ANT_GSMHB

TX_ANT_GSMLB

TX_ANT_B1

TX_ANT_B2

PRX_B2_INM

PRX_B2_INP

PRX_G1800_G1900_INM

PRX_G1800_G1900_INP

TX_ANT_B5

PRX_B5_G850_INP

PRX_B5_G850_INM


RF2 (Global)

RF1 (CDMA)

H

LH

CTRLENPath

H

TP1

TP2

+3V0_VREG_L16

L2036

DNI

C207233p

33pC2073

100pC2075C2074

100p

FL2010 XM0831SZ

3

9

7

5 6

1

4

10

8

2GND1

PORT1-

PORT3-

PORT2-

PORT3+

CTLPORT2+

PORT1+

VDD

GND2

14

5

13

4

12

3

11

2

69

78

54

61

43

48

30

36

17

23 PRX_MB3_INM

PRX_MB2_INP

PRX_MB2_INM

PRX_MB1_INP

PRX_MB1_INM

PRX_LB3_INP

PRX_LB3_INMPRX_LB2_INP

PRX_LB2_INM

PRX_LB1_INP

PRX_LB1_INM

DRX_HB_INP

DRX_HB_INM

DRX_MB_INP

DRX_MB_INM

DRX_LB2_INP

DRX_LB2_INM

DRX_LB1_INP

DRX_LB1_INM

PRX_B1_INM

PRX_G900_INM

PRX_G900_INP

PRX_G1800_G1900_INM

PRX_G1800_G1900_INP

PRX_BC1_B2_B25_INP

PRX_BC1_B2_B25_INM

PRX_B5_G850_INP

PRX_B5_G850_INM

DRX_HB_B41_INM

DRX_HB_B41_INP

PRX_SW_SEL1



DRX_MB_B25_BC1_INP

DRX_MB_B25_BC1_INM



H

Path

PRX_B26_BC0_BC10

PRX_B5_G850

CTLVDD

H H

L

TP3


53/261

3. TROUBLE SHOOTING






Yes

Yes

Yes

No

No

No

RF TX Level is OK


Check the FL2010

Check the U1000

Check the U2002

(WTR1605L)


54/261

3. TROUBLE SHOOTING



3.7 SIGNAL PATH (CDMA&LTE)

1

L

J

1

7

1

1

1

1

11

1

1

1

1

15 1

C9027

C2024

C9035

L2014

U9006

L2013

L2024

R3022

C2008

R3023

U2001L2007

C9033

C2016

ANT2002

FL9003

U90

04FL9001

R2001

L2027

FB10006

C9036

SW2001

FL9

L

C9032

VA10011

C2022

C2084

L2025C2023

C2012

VA10009

C9030

C2026

C9001

SW2002

C9005

L

C2006 ZD9005

L

L

ANT2003

L

C9006

R2009

L2021

L2012

C9031

L2022

FL2004

L2050

C9002

C9003

U9005

C9026

C2020

CN9001

U2000

C2018

C2021

C2010

C10029

C2082

R2000

1

B23,BC1 RTX

B26,B10,BC0 RTX

B41 RTX

B25, BC1 DRX

B26, BC0,BC10 DRX

B41 DRX

BOT

BOT

TOP


55/261

3. TROUBLE SHOOTING



START

Re download S/W & Cal

1. Check DC Power Supply circuit

2. Check XO

3. Check RF Signal path


56/261

3. TROUBLE SHOOTING



3.7.1 Checking RF TX Level(CDMA BC0,BC10&LTE B26)

BOT

TP1

TP3

TP4

TP2

U1004

PAM

L1002

DNI100n

L1001

SW1001 MS-156C

43

2

1ANT COMMON

G3 G4

+3V0

_VREG

_L16

C1095

1 00 p 1 00 p

C1096

10n

C1097

C1109

1.5n

L1061

DNI

U1000RF1602

7 8 9

10

11

12

2

13

1

5

46 3

GND2

GND4

GND3

RF1

GND1

GND7

ANT

GND6

RF2

GND5

VBATT

EN

CTRL

C1001 1n

GRFC20

_SW

GRFC21

_SW

TP1


57/261

3. TROUBLE SHOOTING



L1037

DNI

10nC1060

C1057

DNI

VPA

U1004

ACPM-5805-TR2

6

7 4

8 3

5

9 210 1

11PGND

VCC1VCC2

RFINRFOUT

VEN

NCISO

VMODEGND

CPL

L10366.8n

2.2uC1059

CPL_B25

CPL_B26

TX_BC0_B10_B26

TP2

C105233p

C1065

100p100p

C1064

+VPWR_RF

100pC1054

C1063

2.2u

FL1004

LFL18829MTCRD627

43

52

61IN G3

G1 NC

O UT G 2

U1004

ACPM-5805-TR2

6

7 4

8 3

5

9 2

10 1

11PGND

VCC1VCC2

RFINRFOUT

VEN

NCISO

VMODEGND

CPL

C1055

DNI

C1058

DNI

C1062

330p

PA_ON1_B26

PA1_R0_B26

TP4TP3


58/261


59/261

3. TROUBLE SHOOTING



3.7.2 Checking RF TX Level(CDMA BC1 & LTE B25)

BOT

L1002

DNI100n

L1001

SW1001 MS-156C

43

2

1ANT COMMON

G3 G4

+3V0

_VREG

_L16

C1095

1 00 p 1 00 p

C1096

10n

C1097

C1109

1.5n

L1061

DNI

U1000RF1602

7 8 9

10

11

12

2

13

1

5

46 3

GND2

GND4

GND3

RF1

GND1

GND7

ANT

GND6

RF2

GND5

VBATT

EN

CTRL

C1001 1n

GRFC20

_SW

GRFC21

_SW

TP1

TP1 TP3

TP4TP2

U1003

PAM


60/261

3. TROUBLE SHOOTING



C1043

2.2u

VPA U1003

SKY77762

6 5

7 4

8 3

9 2

10 1

11PGND

VCC1VCC2

RFINRFOUT

VMODE_1CPL_IN

VMODE_0GND

VENCPL_OUT

L1030

1p 10n

C1044L1042

1p

L1028

3.9n

CPL_B25

CPL_GLOBALTP2

C1042

DNIC1046

330p 2.2u

C1047

100p

L1029

+VPWR_RF

C1049

100p

U1003

SKY77762

6 5

7 4

8 3

9 2

10 1

11PGND

VCC1VCC2

RFINRFOUT

VMODE_1CPL_IN

VMODE_0GND

VENCPL_OUT

C1048

100p

C1040

3.3n TX_OUT_B25_BC1

PA_ON0_B25PA0_R1_B25

TP4

TP3


61/261

3. TROUBLE SHOOTING



PAM control signal

PA_ON1_U1003 (C1049) : PAM Enable (VEN)

PA0_R1 (C1048) : PAM Gain Control (VMODE)

PA_ON1_U1004 (VEN) must be HIGH (over 2.6V)

Check TP2(L1036) at U1003

Check Over 21 dBm?

Check TP4(C1064) at U1003

Check PA_R1 : 2.6V

Check TP3(C1054) at U1003 (PA_ON)

Check OVER -3dBm?

START Set the phone Tx is ON PDM is 90

Change the board

Yes

Yes

Yes

No

No

No

PAM circuits OK See next page

Check MS8974 OK

Check WTR1605L OK


62/261

3. TROUBLE SHOOTING



3.7.3 Checking RF TX Level(LTE B41)

BOT

TOP

B41

SW1003

RF Switch

U1010

RF/TX SPDT

TP1

TP4

TP2

TP3

U1007

PAM


63/261

3. TROUBLE SHOOTING



100p

C1073

100p

C1084

DNI

L1045L1060

100n

SW1003 MS-156C

43

2

1ANT COMMON

G3 G4

C1079

100p

DNI

L1046

U1010RF1602

7 8 9

10

11

12

2

13

1

5

46 3

GND2

GND4

GND3

RF1

GND1

GND7

ANT

GND6

RF2

GND5

VBATT

EN

CTRL

10n

C1112

+3V0

_VREG

_L16

SW

_B41

SW

_B41

_EN

TP1

L20335.6n

L2034

3.3n

C2035

100p 100p

C2036

DNI

C2038

C2085

3.3n DNI

L2051

TX_OUT_B41

TP3

C1092

2.2u 100p

C1093

L1050

1p

100p

C1094

VPA_GSM

+VPWR_RF

C1089

10n

C1091

330p

C1090

330p2.2u

C1088

U1007

ACPM-9041-TR1

6

7 4

8 3

5

9 2

10 1

11PGND

VCC1VCC2

RFINRFOUT

VEN

NCISO

VMODEGND

CPL

C1086

DNI

L10481.8n

TX_OUT_B41

PA1_R1_B41PA_ON2_B41

CPL_B26

CPL_PDET

TP2 TP4


64/261

3. TROUBLE SHOOTING



PAM control signal

PA_ON2 (C1092) : PAM Enable

PA_R1 (C1093) : PAM Gain Control

PA_ON2 (C1092) must be HIGH (over 2.6V)

Check TP2(L1048) at U1007

Check Over 21 dBm?

Check TP4(C1093) at U1007

Check PA_R1 : 2.6V

Check TP3(L2033) at U1007 (PA_ON)

Check OVER -3dBm?

START Set the phone Tx is ON PDM is 90

Change the board

Yes

Yes

Yes

No

No

No

PAM circuits OK See next page

Check MS8974 OK

Check WTR1605L OK


65/261

3. TROUBLE SHOOTING



3.7.4 Checking RF PRX Level(CDMA BC0,BC10 & LTE B26)

BOT

L1002

DNI100n

L1001

SW1001 MS-156C

43

2

1ANT COMMON

G3 G4

+3V0

_VREG

_L16

C1095

1 00 p 1 00 p

C1096

10n

C1097

C1109

1.5n

L1061

DNI

U1000RF1602

7 8 9

10

11

12

2

13

1

5

46 3

GND2

GND4

GND3

RF1

GND1

GND7

ANT

GND6

RF2

GND5

VBATT

EN

CTRL

C1001 1n

GRFC20

_SW

GRFC21

_SW

TP1

TP1

TP3TP4

TP2


66/261

3. TROUBLE SHOOTING



+3V0_VREG_L16

L2036

DNI

C207233p

33pC2073

100pC2075C2074

100p

FL2010 XM0831SZ

3

9

7

5 6

1

4

10

8

2GND1

PORT1-

PORT3-

PORT2-

PORT3+

CTLPORT2+

PORT1+

VDD

GND2

PRX_B5_G850_INP

PRX_B5_G850_INM

PRX_SW_SEL1



H

Path

PRX_B26_BC0_BC10

PRX_B5_G850

CTLVDD

H H

L

TP2

TP3

C1100

1.2p 3p

C1102

1.2pC1099

100pC1104L1054

12n

L1051

5.6n

L1052

5.6n

L1055

12n

15n

L1056

L1030

1p

100pC1103

L1042

1p

C11013p

U1009ACFM-7526-TR1

17

9

8

10

7

11

6

12

5

13

4

14

3

15

2

16

1BAND_26_RX

GND11

GND1

BAND_

25_

RX

GND2

GND10

GND3

GND9

BAND_25_TX

GND8

GND4

ANT

BAND_

26_

TX

GND7

GND5

GND6

GND12

L1028

3.9n

PRX_B25_BC1_INM

PRX_B25_BC1_INP

TX_BC0_B10_B26

TP4


67/261

3. TROUBLE SHOOTING



Check if there is any major difference between

TP1 Signal Exist?


TP4 Signal Exist?

Check TP2 at FL2010

Check PRX SW_SEL : 1.6V


TP3 Signal Exist?

START

Replace Main board

Yes

Yes

Yes

Yes

No

No

No

No

U1000 RF SPDT

U1005 Quadlxer

FL2010 SP4T

WTR1605L


68/261

3. TROUBLE SHOOTING



3.7.5 Checking RF DRX Level(CDMA BC0,BC10& LTE B26)

BOT

TP3

TP2

TP1


69/261

3. TROUBLE SHOOTING



C2010

100p

100p

C2014

100p

C2003

FL2002XM2400SB-DL1201

1112 10

9

54 6

3 7

2 8

1VCTL1

PORT2ANT

GND3VCTL3

GND2

PORT

3

GND1

GND4

GND5

PORT1

VCTL2

100p

C2083

L2050

DNI

MS-156CSW2001

ANT1

COMMON2

G3

3

G4

4

100n

L2014

DRX_SW_SEL

DRX_SW_SEL_800

DRX_SW_SEL_2100

TP2

TP1

12nL2029

FL2005

SAFFB876MFL0F0A

U_BP1

BP14

G1

2

BP23

G2

5

33pC2030

12n

L2031

C2029

33p

C2028100p

100p

C2031L203212n

22nL2030



TP3


70/261

3. TROUBLE SHOOTING




TP1 Signal Exist?

Check TP2 at FL2002

Check DRX SW_800 : 1.6V


TP3 Signal Exist?

START

Replace Main board

Yes

Yes

Yes

No

No

No

U1000 FL2002

Check FL2005

WTR1605L


71/261

3. TROUBLE SHOOTING



3.7.6 Checking RF PRX Level(CDMA BC1 & LTE B25)

BOT

L1002

DNI100n

L1001

SW1001 MS-156C

43

2

1ANT COMMON

G3 G4

+3V0

_VREG

_L16

C1095

1 00 p 1 00 p

C1096

10n

C1097

C1109

1.5n

L1061DNI

U1000RF1602

7 8 9

10

11

12

2

13

1

5

46 3

GND2

GND4

GND3

RF1

GND1

GND7

ANT

GND6

RF2

GND5

VBATT

EN

CTRL

C1001 1n

GRFC20

_SW

GRFC21

_SW

TP1

TP1

TP3

TP4

TP2


72/261

3. TROUBLE SHOOTING



FL1001

XMSSJE3G0PA-003TMP

3

9

7

5 6

1

4

10

8

2GND1

PORT1-

PORT3-

PORT2-

PORT3+

CTLPORT2+

PORT1+

VDD

GND2

+3V0_VREG_L16

100p

C1037 C1038

100p

33pC1034

33pC1029

L1020

5.6n

PRX_SW_SEL0

PRX_B25_BC1_INM

PRX_B25_BC1_INP

PRX_B2_INM

PRX_B2_INP

PRX_BC1_B2_B25_INP

PRX_BC1_B2_B25_INM

TP3

TP2

C1115

0.3p

C1100

1.2p 3p

C1102

1.2pC1099

100pC1104

L1054

12n

L1051

5.6n

L1052

5.6n

L1055

12n

C10432.2u

VPA U1003

SKY77762

6

7

8

9

10

11PGND

VCC2

RFOUT

CPL_IN

GND

CPL_OUT

15n

L1056

L1030

1p

2.2n

L1025

100pC1103

10n

C1044L1042

1p

C11013p

U1009ACFM-7526-TR1

17

9

8

10

7

11

6

12

5

13

4

14

3

15

2

16

1BAND_26_RX

GND11

GND1

BAND_

25_

RX

GND2

GND10

GND3

GND9

BAND_25_TX

GND8

GND4

ANT

BAND_

26_

TX

GND7

GND5

GND6

GND12

L1028

3.9n

CPL_B25

CPL_GLOBAL

PRX_B25_BC1_INM

PRX_B25_BC1_INP




TX_BC0_B10_B26

TP4


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3. TROUBLE SHOOTING




TP1 Signal Exist?


TP4 Signal Exist?

Check TP2 at FL1001

Check PRX SW_SEL : 1.6V


TP3 Signal Exist?

START

Replace Main board

Yes

Yes

Yes

Yes

No

No

No

No

U1000 RF SPDT

U1005 Quadlxer

FL1001 SPDT

WTR1605L


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3. TROUBLE SHOOTING



3.7.7 Checking RF DRX Level(CDMA BC1 & LTE B25)

BOT

TP3

TP4TP2

TP1


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3. TROUBLE SHOOTING



C2010

100p

100p

C2014

100p

C2003

FL2002XM2400SB-DL1201

1112 10

9

54 6

3 7

2 8

1VCTL1

PORT2ANT

GND3VCTL3

GND2

PORT

3

GND1

GND4

GND5

PORT1

VCTL2

100p

C2083

L2050

DNI

MS-156CSW2001

ANT1

COMMON2

G3

3

G4

4

100n

L2014

DRX_SW_SEL

DRX_SW_SEL_800

DRX_SW_SEL_2100

TP1

TP2TP3

SAWFD1G96BH0F0A

FL20031

9

4

6

2 7

3 8

5 10GND6GND3

GND5GND2

GND4GND1

Balance_Port_1

Unbalance_Port_Hch

Balance_Port_2

Unbalance_Port_Lch

L2045

DNIDNI

L2044

L2046DNI

L2047DNI

C2002

3.9n

L2042

100p

3.3n

L2043

100p

L2041

33p

C2078

C2079

33p

L2037

6.8n

47p

C2013

DRX_MB_B25_BC1_INP

DRX_MB_B25_BC1_INM

TP4


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3. TROUBLE SHOOTING




TP1 Signal Exist?

Check TP2,TP3 at FL2002

Check DRX SW, DRX SW_2100 : 1.6V


TP3 Signal Exist?

START

Replace Main board

Yes

Yes

Yes

No

No

No

U1000 FL2002

Check FL2003

Check WTR1605L FL2003


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3. TROUBLE SHOOTING



3.7.8 Checking RF PRX Level(LTE 41)

BOT

TP1

TP3

TP2

100p

C1073

100p

C1084

DNI

L1045L1060

100n

SW1003 MS-156C

43

2

1ANT COMMON

G3 G4

C1079

100p

DNI

L1046

C1110

33p

U1010RF1602

7 8 9

10

11

12

2

13

1

5

46 3

G

ND2

G

ND4

G

ND3

RF1

G

ND1

G

ND7

ANTG

ND6

RF2

G

ND5

VBATT

EN

CTRL

10n

C1112

+3V0

_VREG

_L16

SW

_B41

SW

_B41

_EN

TP1


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3. TROUBLE SHOOTING



Check TP1(C1073) Signal Exist?

Check TP2 (C1072) Signal Exist?

Check TP3(L1041) Signal Exist?

Yes

Yes

Yes

No

No

No

Check U1010 SPDT SW

Check U1006 SAW FILTE

Check WTR1605L

START

Replace Main board

U1006ACPF-70412 1

3

GND

TX/RXANT

FL1007

HHM1918A2

3

12

4GND

UNBAL BALAN1

BALAN2

12pC1075

L1040

100p

DNI

C1074

100p

C1072

C106812p

L1041

1.8n

L1044

100p

PRX_B41_INP

PRX_B41_INM

TP3

TP2


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3. TROUBLE SHOOTING



3.7.9 Checking RF DRX Level(LTE 41)

BOT

TP3

5 C9027

4

C2025

C

2024

C9035

L2014

L2013

L2024

C2008

U2001L2007

C9033

C2016

U

R

2001

L2027

SW2001

C9032

0011

C2022

C

2084

L2025C2023

C2012

C2026

C9001

C2027

C2006 ZD9005

L2021

L2012L2022

FL2004

L2050

C2020

U2000

C2018

C2021

C2010

C10029

C2082

R2000

TP1

TP2


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3. TROUBLE SHOOTING



2.2n

C2026MS-156CSW2002

43

2

1ANT COMMON

G3 G4

15n

L2027C2082

100n

FL2004 B9839

108

9

4

75

1

632

G1

G2

G4

ANT

G3

G7

GPS/GLONASS_OUT

Non-GPS/GLONASS_OUT

G5

G6

3n

C2006

U2000ACPF-7041

GND

3

TX/RX1

ANT2

HHM1918A2

FL2001

3

12

4GND

UNBAL BALAN1

BALAN2

DNI

C2008

L2005

DNI

L2002

1.2n

L20101.2n

C200912p

C2084

100p

DNI

L2007

L2004

2.7n

C200112p

DRX_HB_B41_INM

DRX_HB_B41_INPTP3

TP2

TP1


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3. TROUBLE SHOOTING



Check TP1(C2026) Signal Exist?

Check TP2 (C2084) Signal Exist?

Check TP3(L2004) Signal Exist?

Yes

Yes

Yes

No

No

No

Check FL2004 SPDT

Check FL2001 Balan FILTE

Check WTR1605L

START

Replace Main board


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3. TROUBLE SHOOTING



3.8 GPS/WIFI/BT Module

3.8.1 GPS Module

The WTR1605L is integrated GPS solution.


U2000 SAW FILTER

U2001 PAM

SW2002 RF SWITCH

FL2004 SEPARATOR

ANT12004/5 ANTENNA CONTACT

ANT2005 C9027

ANT2004

C

2025

C2024

U9006

L

L2024

C2008

L2026

U2001L2007

C

C2016

U9004

R2001

L202

7

C

9032

C2022

C2084

L2025C2023

C2026

SW2002

C2027

C2006

L2021

L

C9031

L2022

FL2004

C2020

U2000

C2018

C2021

C10029

C2082

R2000

BOT


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3. TROUBLE SHOOTING



3.8.2 WIFI,BT Module

BCM4335(Module) is the combination module that integrates WLAN(WIFI), BT and FM.


ANT14000 Antenna Contact(GND)

ANT14001 Antenna Contact(Feeding)

FL14002 2.4GHz BPF

U15012 WiFi/BT chip

TOP BOT

U15012

FL14002

ANT1401

ANT1400


8

LG-G2-LS980_Servive manual

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Transcript of LG-G2-LS980_Servive manual