LG GD880 Service Manual

Service Manual Model : GD880

Internal Use Only

Service Manual

GD880

Date: March, 2010 / Issue 1.0

Table Of Contents

1. INTRODUCTION ................................................. 5

1.1 Purpose ............................................................................................... 5

1.2 Regulatory Information ............................................................... 5

1.3 Abbreviations ................................................................................... 7

2. PERFORMANCE ..................................................9

2.1 Product Name .................................................................................. 9

2.2 Supporting Standard .................................................................... 9

2.3 Main Parts : GSM Solution ........................................................... 9

2.4HW Features .....................................................................................10

2.5SW Features .....................................................................................12

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

2.7 GD880 Figures ...............................................................................20

3. TECHNICAL BRIEF ............................................21

3.1 Digital Baseband(DBB/MSM7227) .........................................21

3.2 Hardware Architecture ..............................................................22

3.3 Sub system(MSM7227)...............................................................25

3.4 Power Block.....................................................................................34

3.5 External memory interface .......................................................39

3.6 H/W Sub system ............................................................................41

3.7 Audio and sound ..........................................................................52

3.8 Camera / LCD ..................................................................................58

3.9 Proximity Sensor ...........................................................................65

3.10 Luminance Sensor .....................................................................66

3.11 Motion Sensor .............................................................................67

3.12 Vibrators .........................................................................................68

3.13 GSM MODE ...................................................................................70

3.14 UMTS MODE .................................................................................72

3.15 GPS RECEIVER ..............................................................................75

3.16 LO GENERATION and DISTRIBUTION CIRCUIT ................75

3.17 OFF-CHIP RF COMPONENTS ..................................................76

3.18 LG GD880 Main Features.........................................................80

3.19 GD880 Main Component .......................................................81

4. TROUBLE SHOOTING ......................................86

4.1 RF Component...............................................................................86

4.2 Signal Path .......................................................................................88

4.3 Checking TCXO Block ..................................................................92

4.4 Checking FEM Block ....................................................................93

4.5 Checking WCDMA Block ............................................................96

4.6 Checking GSM Block ................................................................ 106

4.7 GPS/WIFI/BT/FM Radio RF components .......................... 113

4.8 GPS/WIFI/BT/FM Radio SIGNAL PATH ................................115

4.9 GPS/WIFI/BT/FM Radio TROUBLE SHOOTING ................116

4.10 Power ON Troubleshooting ................................................ 122

4.11 Charger Troubleshooting .................................................... 126

4.12 USB trouble................................................................................ 130

4.13 Audio trouble ...........................................................................133

4. 14 5M Camera trouble ............................................................... 145

4. 15 VGA Camera trouble ............................................................. 148

4. 16 Main LCD trouble ................................................................... 150

4.17 SIM Detect Troubleshooting ..............................................153

4.18 Side Key Troubleshooting.................................................... 155

4.19 LINEAR MOTOR ........................................................................157

4.20 Proximity Sensor on/oﬀ trouble ....................................... 158

4.21 Luminance Sensor on/oﬀ trouble ....................................160

4.22 Motion Sensor on/oﬀ trouble ............................................162

5. DOWNLOAD ...................................................164

6. BLOCK DIAGRAM ...........................................177

7. CIRCUIT DIAGRAM ........................................185

8. BGA PIN MAP .................................................195

9. PCB LAYOUT ...................................................201

10. RF CALIBRATION .........................................205

10.1 Introduction .............................................................................. 206

10.2 Terminology ..............................................................................206

10.3 Tachyon Main UI ......................................................................206

11. EXPLODED VIEW & REPLACEMENT

PART LIST ....................................................215

11.1 EXPLODED VIEW ......................................................................215

11.2 Replacement Parts..................................................................219

11.3 Accessory ...................................................................................244

- 3 -

LGE Internal Use Only

- 4 -

Only for training and service purposes

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 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 this phone or compatibility with the network, 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 this model 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

- 5 -

LGE Internal Use Only

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

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. INTRODUCTION

- 6 -

Only for training and service purposes

1.3 Abbreviations

For the purposes of this manual, following abbreviations apply:

Offset Phase Locked LoopOPLL

Light Emitting DiodeLED

Low Drop OutputLDO

Liquid Crystal DisplayLCD

Intermediate FrequencyIF

International Portable User IdentityIPUI

Global System for Mobile CommunicationsGSM

General Purpose Interface BusGPIB

Gaussian Minimum Shift KeyingGMSK

Flexible Printed Circuit BoardFPCB

Electrostatic DischargeESD

Electrical Erasable Programmable Read-Only MemoryEEPROM

Digital Signal ProcessingDSP

dB relative to 1 milli wattdBm

Digital Communication SystemDCS

Digital to Analog ConverterDAC

Constant Current – Constant VoltageCC-CV

Bit Error RatioBER

BasebandBB

Automatic Power ControlAPC

1. INTRODUCTION

- 7 -

LGE Internal Use Only

1. INTRODUCTION

Wireless Application Protocol

WAP

Voltage Control Temperature Compensated Crystal OscillatorVCTCXO

Voltage Controlled OscillatorVCO

Universal Asynchronous Receiver/TransmitterUART

Time Division Multiple AccessTDMA

Time Division DuplexTDD

Travel AdapterTA

Side Tone Masking RatingSTMR

Pseudo SRAMPSRAM

Static Random Access MemorySRAM

Sending Loudness RatingSLR

Subscriber Identity ModuleSIM

Surface Acoustic WaveSAW

Real Time ClockRTC

Root Mean SquareRMS

Receiving Loudness RatingRLR

Radio FrequencyRF

Public Switched Telephone NetworkPSTN

Phase Locked LoopPLL

Programmable Gain AmplifierPGA

Printed Circuit BoardPCB

Power Amplifier ModulePAM

1. INTRODUCTION

- 8 -

Only for training and service purposes

2. PERFORMANCE

GD880 Product SPEC

2.1 Product Name

GD880 : WCDMA900/2100+EGSM/GSM850/DCS/PCS

(HSDPA 7.2Mbps / GPRS Class 12 / EDGE Class 12)

2.2 Supporting Standard

Item Feature Comment

Supporting Standard WCDMA(FDD1,8)/EGSM/GSM850/DCS1800/PCS1900

with seamless handover Phase 2+(include AMR) SIM Toolkit: Class 1, 2, 3, C-E

Frequency Range WCDMA(FDD1) TX : 1920 – 1980 MHz

WCDMA(FDD1) RX : 2110 – 2170 MHz WCDMA(FDD8) TX : 880 – 915 MHz WCDMA(FDD8) RX : 925 – 960 MHz EGSM TX: 880 – 915 MHz EGSM RX: 925 – 960 MHz GSM850 TX: 824 – 849 MHz GSM850 RX: 869 – 894 MHz DCS1800 TX : 1710 – 1785 MHz DCS1800 RX: 1805 – 1880 MHz PCS1900 TX: 1850 – 1910 MHz PCS1900 RX: 1930 – 1990 MHz

Application Standard WAP 2.0, JAVA 2.0

2.3 Main Parts : GSM Solution

Item Part Name Comment Digital Baseband MSM7227 : Qualcomm Analog Baseband PM7540 : Qualcomm RF Chip RTR6285 : Qualcomm

2. PERFORMANCE

- 9 -

LGE Internal Use Only

2. PERFORMANCE

GD880 Product SPEC

2.4HW Features

Item Feature Comment Form Factor Bar type Battery 1) Capacity

Standard : Li-Ion, 900mAh

2) Packing Type : Soft Pack

Size Standard :

102 x 47.6 x 10.6 mm

Weight 99g With Battery Volume

BD PCB All Layer (10) , 0.75t Stand by time 2G Up to 340 hrs

3G Up to 300 hrs

@ Paging Period 5 (2G) @ DRX 7 (3G)

Charging time 3 hrs @ Power Off / 900mAh

alk time 2G Up to 190mins

3G Up to 250 mins

@ Power Level 5 (2G) @ Tx = 12dBm (3G)

RX sensitivity WCDMA(FDD1) : -106.7 dBm

WCDMA(FDD8) : -103.7 dBm EGSM : -105 dBm GSM850 : -105 dBm DCS 1800 : -105 dBm PCS 1900 : -105 dBm

X output power

WCDMA/ GSM/ GPRS

WCDMA : 24dBm/3.84MHz,+1/-3dBm EGSM : 33dBm GSM850 : 33 dBm DCS 1800 : 30 dBm PCS 1900 : 30 dBm

Class3(WCDMA) Class4 (EGSM) Class4 (GSM850) Class1 (PCS) Class1 (DCS)

EDGE GSM 900 : 27 dBm

DCS 1800 : 26 dBm PCS 1900 : 26 dBm

E2 (GSM900) E2 (PCS) E2 (DCS)

GPRS compatibility GPRS Class 12 EDGE compatibility EDGE Class 12 SIM card type Plug-In SIM

3V /1.8V

Display Main LCD

TFT Main LCD(3.2’, 480 x 854)

Built-in Camera

5M CMOS Camera

1.3M CMOS Camera (VGA) Status Indicator Yes Keypad Function Key : 2

Side Key : 2

Function Key: CAM, Power Side Key : Volume up/down

1.3M VGA CMOS Camera No

320 hrs

180 mins 225 mins

- 10 -

Only for training and service purposes

2. PERFORMANCE

GD880 Product SPEC

ANT Main : Internal Fixed Type System connector 5 Pin

Ear Phone Jack 3.5Phi, 4 Pole, Stereo PC synchronization Yes Memory NAND Flash : 4Gbit

SDRAM : 4Gbit Speech coding FR, EFR, HR,AMR Data & Fax Built in Data & Fax support Vibrator Built in Vibrator Blue Tooth V2.1+ EDR MIDI(for Buzzer

Function)

SW Decoded 72Poly

Music Player MP3/AAC/AAC+ Video Player MPEG4, H.263,

Camcorder MPEG4, H.263,

Voice Recording Yes Speaker Phone mode Support

Yes

ravel Adapter Yes CDROM Yes Stereo Headset Yes Data Cable Yes

-Flash

(External Memory)

Yes

- 11 -

LGE Internal Use Only

2. PERFORMANCE

GD880 Product SPEC

2.5SW Features

Item Feature Comment RSSI 0 ~ 7 Levels Battery Charging 0 ~ 3 Levels Key Volume 0 ~ 7 Level

Audio Volume 1 ~ 20 Level

ime / Date Display Yes

Multi-Language Yes English/Spanish/Portuguese

orean

Quick Access Mode Dialing / Call Log / Contact / Menu/

Message / Camera / Favorite

PC Sync Schedule / Phonebook / MEMO / SMS /

Download (Photo, file) Speed Dial Yes (1~9) Voice mail center -> 1 key Profile Yes CLIP / CLIR Yes

Phone Book Name + 5 Numbers + 1 Memo + 2 e-mail

+ 3 Group Select + Picture + Ringtone +

Anniversary day

otal 1000 Member

Last Dial Number Yes

otal Call DB Max 100

LDN (SIM) N/A Last Received Number

Yes

otal Call DB Max 100

LDN (SIM) N/A Last Missed Number Yes

otal Call DB Max 100

LDN (SIM) N/A Search by Number / Name

Name and Number

Group 30 Fixed Dial Number Yes Service Dial Number Yes Own Number Yes Voice Memo Yes Call Reminder Yes Network Selection Automatic

Mute Yes Call Divert Yes Call Barring Yes Call Charge (AoC) Yes Call Duration Yes SMS (EMS) 1000 (10) EMS : Release4

(Except Text align) SMS Over GPRS Yes EMS Melody / Picture Send / Receive / Save

Yes

Receive only MMS MPEG4 Send / Receive / Save

Yes

- 12 -

Only for training and service purposes

GD880 Product SPEC

Long Message MAX 1000 Characters SMS 7pages

Cell Broadcast Yes Download Over the WAP Game Yes

Calendar Yes Memo 50 World Clock Yes Unit Convert Currency/Surface/Length/Volume/Weig

ht/Temperature/Velocity Stop Watch Yes Wall Paper Yes WAP Browser Over WAP 2.0 Obigo Download Melody / Wallpaper

Yes Over WAP

SIM Lock Yes Operator Dependent SIM Toolkit Class 1, 2, 3, C-E MMS Yes Obigo +LG MMS Client EONS Yes CPHS Yes V4.2 ENS No Camera Yes 5M AF/

Digital Zoom : x16

JAVA Yes CLDC V1.1 / MIDP V2.0

Download Over WAP Voice Dial No IrDa No Bluetooth Yes V2.0

HSP, HFP, OPP, FTP(server), BPP,

A2DP, AVRCP FM radio Yes

GPRS Yes Class 12 EDGE Yes Class 12 Hold / Retrieve Yes Conference Call Yes Max. 6 DTMF Yes Memo pad Yes

TY No AMR Yes SyncML Yes IM No

Email Yes

2. PERFORMANCE

- 13 -

LGE Internal Use Only

2. PERFORMANCE

GD880 Product SPEC

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

ransmitter Output power and

Burst Timing

GSM : 5dBm – 33dBm ± 3dB

DCS/PCS : 0dBm – 30dBm ± 3dB Burst Timing <3.69us Spectrum due to modulation out

to less than 1800kHz offset

200kHz : -36dBm

600kHz : -51dBm/-56dBm

Spectrum due to modulation out to larger than 1800kHz offset to the edge of the transmit band

GSM : 1800-3000kHz :< -63dBc(-46dBm) 3000kHz-6000kHz : <-65dBc(-46dBm) 6000kHz < : < -71dBc(-46dBm) DCS : 1800-3000kHz :< -65dBc(-51dBm) 6000kHz < : < -73dBc(-51dBm)

Spectrum due to switching transient

400kHz : -19dBm/-22dBm(5/0), -23dBm 600kHz : -21dBm/-24dBm(5/0), -26dBm

Reference Sensitivity – TCH/FS Class II(RBER) : -105dBm(2.439%) Usable receiver input level range 0.012(-15 - -40dBm) Intermodulation rejection –

Speech channels

± 800kHz, ± 1600kHz : -98dBm/-96dBm (2.439%)

AM Suppression

T GSM : -31dBm

- DCS : -29dBm

-98dBm/-96dBm (2.439%)

iming Advance ± 0.5

- 14 -

Only for training and service purposes

GD880 Product SPEC

2) WCDMA transmitter specification

Item Specification

ransmit Frequency Band1 : 1920 MHz ~ 1980 MHz

Band8 : 880MHz~915MHz

Maximum Output Power +24 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 < -60 dBm / 3.84 MHz RW @ 1930 MHz ≤ f ≤ 1900 MHz < -60 dBm / 3.84 MHz RW @ 2110 MHz ≤ f ≤ 2155 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

ransmit 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 t -20 dBm

2. PERFORMANCE

- 15 -

LGE Internal Use Only

2. PERFORMANCE

GD880 Product SPEC

3) WCDMA receiver specification

Item Specification

Receive Frequency Band1 : 2110 ~ 2170 MHz

Band8 : 925~960MHz

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

Band8 : BER < 0.001 when Îor = -103.7 dBm / 3.84 MHz Maximum Input Level BER < 0.001 when Îor = -25 dBm / 3.84 MHz Adjacent Channel Selectivity

(ACS)

ACS > 33 dB where BER < 0.001 when

Îor = -92.7 dBm / 3.84 MHz

& Ioac = –52 dBm / 3.84 MHz @ ±5 MHz Blocking Characteristic BER < 0.001 when Îor = -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 Îor = -103.7 dBm / 3.84 MHz

& Iblocking = -44 dBm Intermodulation BER < 0.001 when Îor= -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

- 16 -

Only for training and service purposes

2. PERFORMANCE

GD880 Product SPEC

4) HSDPA transmitter specification

Item Specification

ransmit Frequency Band1 : 1920 MHz ~ 1980 MHz

Band8 : 880MHz~915 MHz

Maximum Output Power Sub

est 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]

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

est : 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

- 17 -

LGE Internal Use Only

2. PERFORMANCE

GD880 Product SPEC

6) WLAN 802.11b transceiver specification

Item Specification

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

x Power Level ≤ 20dBm under (Europe), ≤ 30dBm under (USA)

Frequency Tolerance within ±25 PPM Chip clock Frequency

Tolerance

within ±25 PPM

Spectrum Mask ≤ -30 @ fc-22MHz< f <fc-11MHz and fc+11MHz< f <fc+22MHz

≤ -50 @ f < fc-22MHz and f > fc+22MHz

Power ramp on/off time ≤ 2us Carrier Suppression ≤ -15dB

Modulation Accuracy (Peak EVM)

≤ 35%

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 ≤ -76dBm(1Mbps,2Mbps,5.5Mbps,11Mbps) @ FER ≤ 8%

Rx Max input Sensitivity ≥ -10dBm(1Mbps,2Mbps,5.5Mbps,11Mbps) @ FER ≤ 8% Rx Adjacent Channel

Rejection

≥ 35dB @FER ≤ 8%, interference input signal -70dBm@fc±25MHz(11Mbps)

GD880 Product SPEC

4) HSDPA transmitter specification

Item Specification

ransmit Frequency Band1 : 1920 MHz ~ 1980 MHz

Band8 : 880MHz~915 MHz

Maximum Output Power Sub

est 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]

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

est : 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

5) HSDPA receiver specification

Item Specification

Receive Frequency

Band1 : 2110 ~ 2170 MHz Band8 : 925 ~ 960Hz

Maximum Input Level (BLER or R), 16QAM Only

Sub

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

BLER < 10% or R >= 700kbps

- 18 -

Only for training and service purposes

GD880 Product SPEC

7) WLAN 802.11g transceiver specification

Item Specification

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

x Power Level ≤ 20dBm under (Europe), ≤ 30dBm under (USA)

Frequency Tolerance within ±25 PPM Chip clock Frequency

Tolerance

within ±25 PPM

Spectrum Mask ≤ -20 @ ±11MHz offset (9Mhz ~ 11MHz)

≤ -28 @ ±20MHz offset (11MHz ~ 20Mhz) ≤ -40 @ ±30MHz offset (20MHz ~ 30Mhz)

ransmitter 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

-77dBm@18Mbps, -74dBm@24Mbps, -70dBm@36Mbps

-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

8) 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

2. PERFORMANCE

- 19 -

LGE Internal Use Only

2. PERFORMANCE

GD880 Product SPEC

2.7 GD880 Figures

- 20 -

Only for training and service purposes

ZUG{Gi

3. Technical Description

3.1 Digital Baseband(DBB/MSM7227)

3.1.1 General Description

A. Features(MSM7227)

WCDMA Rel ‘99 plus HSDPA and HSUPA GSM/GPRS/EDGE High-performance ARM1136JF-S™ application processor at up to 600 MHz; QDSP5000™ at 320 MHz High-performance ARM926EJ-S™ modem processor at up to 400 MHz; QDSP4000™ at 122.88 MHz Java® hardware acceleration for faster Java-based games and other applets Support for Bluetooth® 2.1 EDR via an external Bluetooth System-on-Chip (SoC) High-speed, serial mobile display digital interface (MDDI) that optimizes the interconnection cost between the MSM device and the LCD panel Receive diversity support for WCDMA mode, thereby providing improved capacity and data throughput USB 2.0 compliant high-speed USB core with limited OTG capabilities Integrated high-speed USB PHY Integrated wideband stereo codec for digital audio applications Direct interface to digital camera module with video front-end (VFE) image processing GPS position location capabilities Vocoder support (GSM-HR, FR, EFR, AMR, and AMR-WB/+) Advanced 12 Ý 12 Ý1.05 mm, 0.4 mm pitch, 560 NSP High-performance ARM1136JF-S 600 MHz application processor Industry standard ARM926EJ-S 400 MHz embedded microprocessor subsystem QDSP5000 320 MHz application digital signal processing (ADSP) QDSP4000 122.88 MHz modem digital signal processing (MDSP) 256 kB internal memory (IMEM) for graphics, internal functions, DSP, etc. Dual-memory buses separating the high-speed memory subsystem (EBI1) from low-speed peripherals (EBI2) such as LCD panels Enhanced EBI1 memory support: 200 MHz bus clock for DDR SDRAM EBI2 support All modes and data rates for WCDMA frequency division duplex (FDD), with the following restrictions Full SF range support from 4 to 256 SMS (CS and PS) PS data rate – 384 kb/s DL/384 kb/s UL CS data rate – 64 kb/s DL/64 kb/s UL AMR (all rates)

3. TECHNICAL BRIEF

- 21 -

LGE Internal Use Only

3. TECHNICAL BRIEF

3.2 Hardware Architecture

3. Technical Brief

MINI Block Diagram

Parallel Interface [0:9]

LBEH19UNBC

PCM

I2C

UART1/

WCDMA GSM

VGA

Camera

5Mega AF

Camera

I2C

GPS

BT Wi-Fi

SDIO1

FM Audio R/L

Parallel Interface [2:9]

MSM7227

CAM I/F

MCP

SBI

GSM 850 900 1800

RX ADC

SSBI

EBI2 DATA

GSM FEM

RTR6285

Camera I/F[0:9]

NAND

3.2” FWVGA LCD

MDDI

GPS

GPS ADC

RGB

Interface

RGB 24bit

EDGE

PAM

I2C

EBI2 ADDR

WCDMA 900 2100

1900

TX DAC

EBI1 DATA

EBI1 ADDR

Duplexer

WCDM A PAM

DDRSDRAM

2Gbit

Flash

4Gbit

Charge Pump

BD6084

LCD_PWM

Ambient Light

Sensor

RF Block

8CH

(ALC)

SDIO2

Speaker

Line O P/N

HPH_R/L

EAR1OP/N

Receiver

Micro SD

UART3/

UIM2

UART2/

I2C

Touch

Sensor

Proximity

Speaker AMP

TCXO_RTR_19.2MHz

3.5ĭ

Earphone

PM_SSBI

USB I/F

MIC1P

UART2/UIM

I2C

Sensor

3-Axis

Sensor

PWM

Headset AMP

MIC2P

arphone

R/L

Audio Subsystem

Line L/R_IP

FM Audio R/L

Earphone R/L

TRK_LO_ADJ

GPS

D F/F

X-Tal

(19.2MHz)

PM7540

SSBI

cro USB

ector

USB 2.0 HS

USB

VBUS

OVP

near

Motor

VCHG_VBUS

TCXO_PM_19.2MHz

USIM

USIM Translator

UART1/DM : BT URRT2/DM : UART2(DP) UART2/UIM : USIM UART3/UIM2 : N.A

5pin Mi

Con

MUIC

UART

D+ / D-

UART3/UIM2

3.2 Hardware Architecture

3. Technical Brief

Figure. Simplified Block Diagram of System

- 22 -

Only for training and service purposes

3. Technical Brief

Figure. Simplified Block Diagram of System

POWER Block

MSM7227

Charging IC

(NUS5530MN)

VCHG_VBUS

TA (5PIN)

5.1V,700mA

+VPWR

REG_MSMC1_1.35V (500m A)

VREG_MSME_1.8V (500m A)

VREG_MSMA_2.6V (300m A)

VDD

PM7540

VSW_MSME

VREG_MSMA

VSW_MSMC1

VSW_MSMC2

VREG_MSMC2_1.25V (500m A)

VDD_VCORE1 ( 1.2V , 203mA )

VDD_P1/P2/P8 /MDDI ( 1.8V ,MAX 10mA )

VDD_A / PLL ( 2,6V , MAX 65mA )

CHG_CTL_N

Battery

900mAh

VBATT

VREG_MSMP_2.6V (300m A)

VREG_MSMP

VREG_GP5

VREG_AUX2_2.9V (150m A)

VDD_P3/P4 (2.6V , MAX 25mA )

VDD_QFUSE (2.9V , MAX 10mA )

VDD_USBPHYE (3.3V , MAX 10mA )

USB

LDO(3.3V)

BATT_FET_N

+VPWR

MCP

SDRAM ( 1.8V , MAX 180mA )

NAND ( 1.8V , MAX 30mA )

RTR6285

GSM PAM

VDDA ( 2.7V , MAX 93mA )

VDDM ( 2.6V , MAX 10mA )

VDDA ( 2.1V , MAX 70mA )

VREG_RF_2.7V (150mA)

VREG_SMPS_2.1V (300mA)

VREG_RFRX1

VSW_PA

VREG_GP2

GPS LN

VREG_LCD_2.8V (150mA)

LCD module

VIO (1.8V )

WCDMA PAM

VREG_SYNT

VREG_MSME2

VREG_GP1

Motion Sensor ( 2.7V, MAX ?mA)

VREG_GP6

VREG_SENSOR_2.6V (300mA)

Proximity sensor( 2.7V, 20mA)

VREG_SYNTH_2.75V

VREG_LCD_1.8V (150mA)

VREG_RGBC_1.5V (150mA)

FEM

WVGA LCD Controller

CORE,DRAM,PLL,MD15 (1.5V )

VDD (2.8V )

VREG_RFTX

VREG_GP3

VREG_MMC_3.0V (150mA)

VREG_MMC MICRO SD slot (3.0V , , MAX mA )

VREG_TCXO_2.85V (50mA)

VREG_TCXO TCXO (2.85V , , MAX 20mA )

GPS D FLIP-FLOP

VREG_RGBC_2.6V (150mA)

MD18,PIO,HIO (1.8V

)

DRAM,OSC (2.6V )

VREG_RFRX2

USIM SLOT (3.0V , , 1mA )

REG_RUIM_3.0V (150mA)

VREG_RUIM1

VREG_MOTOR_3.0V (300mA)

Linear Motor Driver ( 3.0V, mA )

VREG_WLAN

VREG_GP4

BACKUP Battery

VBACK_UP

VCOIN

3. TECHNICAL BRIEF

- 23 -

LGE Internal Use Only

3. TECHNICAL BRIEF

3. Technical Brief

Figure. Simplified Block Diagram of System

POWER Block

VREG_MSMP_2.6V

BD6084GUL

CAM_VDD_2.8V

CAM_VDD_1.8V

LDO2 (150mA)

LDO1 (150mA)

LDO3 (150mA)

5M CAMERA

VIO

CAM_AF_2.8V

+V_PWR

LDO4 (150mA)

VBAT

VGA CAMERA

Touch IC

TOUCH_VDD_3.3V

MLED ( 7ea )

MLEDOUT ( 450mA )

LCD_BACKLIGHT_4.8V

WIFI/BT/FM MODULE

VBAT

VDDIO/VDDIO_SD

VREG_MSMP_2.6V

LDO(2.8V)

26MHz TCXO for WIFI/BT/FM

MUIC

Audio Sub System

- 24 -

Only for training and service purposes

3.3 Subsystem(MSM7227)

3.3.1 Architecture and baseband processing features

High-performance ARM1136JF-S 600 MHz application processor:

- ARM® architecture v6

- 32 kB instruction and 32 kB data cache

- 256 kB ARM11™ L2 cache

- 4 kB level-one tightly-coupled memory (TCM)

- 8-stage pipeline, branch prediction with return stack

- Supports the ARM and Thumb instruction sets, and Jazelle™ technology to enable direct

- execution of Java byte-codes

- Low-interrupt latency Industry standard ARM926EJ-S 400 MHz embedded microprocessor subsystem

- 16 kB instruction and 16 kB data cache

- ARM version 5TEJ instructions

- Higher-performance five-stage pipeline, Harvard cached architecture

- Higher internal CPU clock rate with on-chip cache

- Internal watchdog and sleep timers

QDSP5000 320 MHz application digital signal processing (ADSP)

- 512 kB L2 cache

QDSP4000 122.88 MHz modem digital signal processing (MDSP)

3.3.2 Memory support features

256 kB internal memory (IMEM) for graphics, internal functions, DSP, etc. Dual-memory buses separating the high-speed memory subsystem (EBI1) from low-speed peripherals (EBI2) such as LCD panels Enhanced EBI1 memory support: 200 MHz bus clock for DDR SDRAM EBI2 support:

- 1.8 or 2.6 V memory interface support

- NAND/OneNAND™ flash memory interface

- Boot from NAND/OneNAND

- LCD and Universal Broadcast Modem™ (UBM™) support

3. Technical Brief

3. TECHNICAL BRIEF

- 25 -

LGE Internal Use Only

3. TECHNICAL BRIEF

3.3.3 Air interface features

3.3.3.1 WCDMA R99

The MSM7227 device supports release 99, June 2004 of the WCDMA FDD standard, including the following features. All modes and data rates for WCDMA frequency division duplex (FDD), with the following restrictions:

- The downlink supports the following specifications. : Up to four physical channels, including the broadcast channel (BCH), if present : Up to three dedicated physical channels (DPCHs) : Spreading factor (SF) range support from 4 to 256 : Support for the following transmit diversity modes:

=> Space-time transmit diversity (STTD) => Time-switched transmit diversity (TSTD) => Closed-loop feedback transmit diversity (CLTD)

- The uplink supports the following specifications. : The uplink provides the following UE support.

=> One physical channel, eight TrCH, and 16 TrBks starting at any frame boundary

=> A maximum data rate of 384 kb/s Full SF range support from 4 to 256 SMS (CS and PS) PS data rate – 384 kb/s DL/384 kb/s UL CS data rate – 64 kb/s DL/64 kb/s UL AMR (all rates)

- 26 -

Only for training and service purposes

3. TECHNICAL BRIEF

3.3.3.2 HSDPA

The MSM7227 device supports the release 5, December 2004 standard for HSDPA, including the following features. The HSDPA enables PS data speeds up to 7.2 Mb/s on the downlink. HS-DSCH (HS-SCCH, HS-PDSCH, and HS-DPCCH) and the R99 transport channels, as defined in the 3GPP specifications A maximum of four simultaneous HS-SCCH channels, as defined in the 3GPP specifications A maximum of 10 HS-PDSCH channels, both QPSK and 16 QAM modulation and UE category 6 in s oftware release 2.0, and category 8 in software release 3.0 CQI and ACK/NACK on the HS-DPCCH channel, as defined in the 3GPP specifications All incremental redundancy versions for HARQ, as defined in the 3GPP specifications Can switch between HS-PDSCH and DPCH channel resources as directed by the network Can be configured to support any of the two power classes 3 or 4, as defined in the 3GPP R5 specifications (25.101) Network activation of compressed mode by SF/2 or HLS on the DPCH for conducting inter-frequency or inter-RAT measurements when the HS-DSCH is active STTD on both associated DPCH and HS-DSCH simultaneously CLTD mode 1 on the DPCH when the HS-PDSCH is active STTD on HS-SCCH when either STTD or CLTD mode 1 is configured on the associated DPCH TFC selection limitation on the UL factoring in transmissions on the HS-DPCCH, as required in TS 25.133

3.3.3.3 HSUPA

The MSM7227 device supports the release 6, March 2006 standard for HSUPA, including the following features. E-DCH data rates of up to 5.76 Mb/s for 2 ms TTI (UE category 6) uplink N E-AGCH, E-RGCH and E-HICH channels for downlink, as defined in the 3GPP specifications. E-RGCH and E-HICH supports serving and non-serving radio links, with up to four radio links in the E-DCH active set. STTD on all HSUPA downlink channels CLTD mode 1 on HS-PDSCH and DPCH along with HSUPA channels All incremental redundancy versions for HARQ and maximum number of HARQ retransmissions, as defined in 3GPP specifications E-DCH channel on the uplink, as defined in the 3GPP specifications, with support for up to four E-DPDCH channels HSUPA channels simultaneously with R99 and HSDPA channels, as defined in the 3GPP specifications Switch between HSUPA channels and DPCH channel resources as directed by the network Handover using compressed mode with simultaneous E-DCH and HS-DSCH interactive/background and streaming QoS classes

ZUG{Gi

- 27 -

LGE Internal Use Only

3. TECHNICAL BRIEF

3.3.3.4 GSM R99

The following GSM modes and data rates are supported by the MSM7227 hardware. Support modes conform to release ‘99 specification of subfeatures. Voice features

- FR, EFR, AMR, HR, A5/1 and A5/2 ciphering

Circuit-switched data features

- 9.6 k, 14.4 k, Fax

- Transparent and non-transparent modes for CS data and fax

- No subrates are supported.

3.3.3.5 GPRS

Packet-switched data (GPRS) DTM (simple class A) operation Multislot class 12 data services CS schemes — CS1, CS2, CS3, and CS4 GEA1, GEA2, and GEA3 ciphering Maximum of four Rx timeslots per frame

3.3.3.6 EDGE

EDGE E2 power class for 8 PSK DTM (simple class A), multislot class 12 Downlink coding schemes — CS 1-4, MCS 1-9 Uplink coding schemes — CS 1-4, MCS 1-9 BEP reporting SRB loopback and test mode B 8-bit and 11-bit RACH PBCCH support One-phase/two-phase access procedures Link adaptation and IR NACC, extended UL TBF

3. Technical Brief

- 28 -

Only for training and service purposes

3. TECHNICAL BRIEF

3.3.3.7 GPS position location

Next-generation gpsOne® solution with an enhanced GPS engine Enhanced filtering software optimizes GPS accuracy and availability. Full integration with Windows Mobile®, Java, and BREW®-based development environments MS-assisted, MS-based, MS-assisted/hybrid, and standalone GPS modes gpsOneXTRA Assistance™ for enhanced standalone GPS performance Support for UMTS control plane, GSM control plane, and OMA SUPL 1.0 user plane assisted-GPS protocols

3.3.4 Supported multimedia features

3.3.4.1 General multimedia

Additional general-purpose MIPS

- QDSP5000 aDSP at 320 MHz

- Dedicated hardware accelerators and compression engines

Improved Java, BREW, and game performance

3.3.4.2 Camera interface

High-quality digital camera processing, supporting CCD or CMOS image sensors up to 8-megapixels Up to 12-bit data width with timing synchronization via discrete or embedded signals YUV (4:2:2) or Bayer data types A multitude of image signal processing capabilities

- Black level correction, bad pixel correction, and color correction

- Radial-based LROC, zoom, FOV crop, and frame drop

- Statistical techniques such as pre-zoom statistic gathering, AE/AWB, and histogram

- Gain adjustments including 4-channel and white balance

- Chroma subsampling, high-quality downscaler, and Bayer noise filter

ZUG{Gi

- 29 -

LGE Internal Use Only

3. TECHNICAL BRIEF

3.3.4.3 Video

Dedicated support for market-leading codecs such as MPEG-4, H.263, H.264, and Windows Media®

- Integrated stereo wideband codec for music/digital clips

- CMX® – 128 polyphonic MIDI wavetable synthesizer

- Audio codecs: MP3, AMR-WB/+, AAC, AAC+™, EAAC+, and Windows Media

3.3.4.4 Graphics support

3D graphics core - Up to WVGA (800 Ý 480) display support 256 kB internal memory 3D support: OpenGL ES 1.1, 2.0, JSR 297, D3DM 2D support: OpenVG, SVG, JSR226, GDI, Ddraw Performance:

- 27 megapixel triangles/s (peak 3D triangle rate)

- 166 megapixel/s peak 3D pixel draw rate

- 1660 megapixel/s effective 3D pixel rate

- 532 megapixel/s peak 3D pixel reject rate

- 207 megapixel four-component-vector instructions/s

- 166 megapixel/s 2D/OVG pixel draw rate

3.3.4.5 Audio processing

Integrated wideband stereo codec

- 16-bit DAC with typical 88 dB dynamic range

- Sampling rates up to 48 kHz on the speaker path and 48 kHz on the microphone path

- Supports summing of an external device’s stereo single-ended analog signal

- Supports summing of an I2S digital audio signal

- Supports headset switch press detection Enhanced acoustic echo cancellation for full-duplex calls PureVoice Audio AGC™ Internal vocoder supporting 13 kb/s PureVoice®

3.3.4.6 LCD controller

Parallel LCD support RGB888 interface

3. Technical Brief

- 30 -

Only for training and service purposes

3. TECHNICAL BRIEF

3.3.5 Supported connectivity features

High-speed USB port with integrated PHY Four universal asynchronous receiver transmitter (UART) serial ports

- Two high-speed (DM via UART, 4 Mb/s)

- Emergency software download on UART2

Two UIM ports (shared with UART2 and UART3)

- 1.8 V and 3.0 V support; IS-820-C compliant

Four SDIO ports (SD 2.0)

- SD card, mini SD card, micro SD card, and MMC up to 52 MHz

- Boot from SD

Display support

- High-speed serial MDDI port that optimizes the interconnection cost between the MSM

device and LCD panel

- MDDI V1.0 interface that supports up to 384 Mb/s link rate

- Dual displays

: Primary => LCD controller (LCDC) or MDDI; FWVGA resolution; 16-bit, 18-bit, and 24-bit

true color depth; on-screen buffer support

: Secondary => EBI2 interface; up to WQVGA resolution; 16-bit, 18-bit, and 24-bit true

color depth

- Mobile display processor: MDP v.3

Touchscreen support AUX_PCM for Bluetooth, SDAC, and SADC support Inter-integrated circuit (I2C) interface for peripheral devices Bluetooth 2.1 + EDR (external BTS4025™ IC) Transport stream interface (TSIF) and the ability to support broadcast technologies, including the Qualcomm MediaFLO™ technology, DVB-H, ISDB-T, T-DMB, and S-DMB

ZUG{Gi

- 31 -

LGE Internal Use Only

+ 213 hidden pages

LG GD880 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual