LG CU575 Service Manual

Date: Mugust, 2007 / Issue 1.0

Service Manual

Model : CU575

Service Manual

CU575

- 3 -

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

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

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

2. PERFORMANCE...............................7

2.1 System Specification................................7

2.2 Using Condition (Accessory)....................7

2.3 Radio Performance..................................8

2.4 Current Consumption.............................11

2.5 Operation Time ......................................11

2.6 RSSI Bar................................................11

2.7 Battery Bar.............................................12

2.8 BACKUP BATTERY : Over 50 hours ....12

2.9 Sound Level...........................................12

3. RF TECHNICAL BRIEF...................13

3.1 MSM6260 ( Block Diagram)...................13

3.2 RF Block Diagram..................................14

3.3 Memory..................................................15

3.4 Camera & LCD Interface........................16

3.5 Interface USB,UART,SIM,JTAG ............17

3.6 Peripheral...............................................18

3.7 Audio Block Diagram .............................19

3.8 Digital Baseband(DBB/MSM6260).........20

3.9 Subsystem(MSM6260) ..........................23

3.10 Power Block.........................................30

3.11 External memory interface...................35

3.12 H/W Sub System..................................36

3.13 Main Features......................................53

4. TROUBLE SHOOTING ...................57

4.1 RF Component.......................................57

4.2 Checking VCXO Block...........................61

4.3 Checking Ant. SW Module Block ...........63

4.4 Checking UMTS Block...........................66

4.5 Checking GSM Block.............................73

4.6 Power ON Troubleshooting....................79

4.7 Charger Troubleshooting

(TA Charging) ........................................81

4.8 Charger Troubleshooting

(USB Charging)......................................84

4.9 USB Troubleshooting.............................87

4.10 SIM Detect Troubleshooting ................89

4.11 Camera Troubleshooting .....................91

4.12 Keypad Backlight Troubleshooting ......92

4.13 Folder ON/OFF Troubleshooting .........93

4.14 Main LCD Troubleshooting ..................94

4.15 Receiver Path ......................................95

4.16 Headset path........................................97

4.17 Speaker phone path.............................99

4.18 Main microphone ...............................101

4.19 Headset microphone..........................103

5. DOWNLOAD .................................105

5.1 Introduction ..........................................105

5.2 Downloading Procedure.......................105

5.3 Troubleshooting Download Errors .......119

5.4 Caution.................................................126

6. BLOCK DIAGRAM ........................127

6.1 CU575 Block Diagram .........................127

7. Circuit Diagram ............................129

8. BGA ...............................................139

9. PCB LAYOUT................................143

10. Calibration & RF Auto Test

Program ......................................147

9.1 Configuration of HOT KIMCHI .............147

9.2 How to use HOT KIMCHI.....................151

9.3 Example for using HOT KIMCHI..........152

11. EXPLODED VIEW &

REPLACEMENT PART LIST ..... 155

11.1 EXPLODED VIEW ............................ 155

11.2 Replacement Parts

<Mechanic component>.................... 157

<Main component> ........................... 160

11.3 Accessory ......................................... 178

Table Of Contents

LGE Internal Use Only

- 4 -

LGE Internal Use Only

Only for training and service purposes

LGE Internal Use Only

- 5 -

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 commoncarrier telecommunication service of facilities accessed through or connected to it. The manufacturer will not be responsible for any charges that result from such unauthorized use.

B. Incidence of Harm

If a telephone company determines that the equipment provided to customer is faulty and possibly causing harm or interruption in service to the telephone network, it should disconnect telephone service until repair can be done. A telephone company may temporarily disconnect service as long as repair is not done.

C. Changes in Service

A local telephone company may make changes in its communications facilities or procedure. If these changes could reasonably be expected to affect the use of the phones or compatibility with the net work, the telephone company is required to give advanced written notice to the user, allowing the user to take appropriate steps to maintain telephone service.

D. Maintenance Limitations

Maintenance limitations on the phones must be performed only by the manufacturer or its authorized agent. The user may not make any changes and/or repairs expect as specifically noted in this manual. Therefore, note that unauthorized alternations or repair may affect the regulatory status of the system and may void any remaining warranty.

1. INTRODUCTION

LGE Internal Use Only

Only for training and service purposes

E. Notice of Radiated Emissions

This model complies with rules regarding radiation and radio frequency emission as defined by local regulatory agencies. In accordance with these agencies, you may be required to provide information such as the following to the end user.

F. Pictures

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

G. Interference and Attenuation

A phone may interfere with sensitive laboratory equipment, medical equipment, etc. Interference from unsuppressed engines or electric motors may cause problems.

H. Electrostatic Sensitive Devices

ATTENTION

Boards, which contain Electrostatic Sensitive Device (ESD), are indicated by the sign. Following information is ESD handling:

• Service personnel should ground themselves by using a wrist strap when exchange system boards.

• When repairs are made to a system board, they should spread the floor with anti-static mat which is also grounded.

• Use a suitable, grounded soldering iron.

• Keep sensitive parts in these protective packages until these are used.

• When returning system boards or parts like EEPROM to the factory, use the protective package as described.

1. INTRODUCTION

- 6 -

LGE Internal Use Only

2. PERFORMANCE

- 7 -

2.1 System Specification

2.2 Using Condition (Accessory)

1) Maximum Using Condition (Using Environment)

2. PERFORMANCE

Item Type / Spec.

1. Type Dual_LCD_Color Folder

2. Size 98.9 x 51 x 16.9 mm

3. Weight 102.5g, (with 970mA Battery)

4. Battery 970 mAh (Li-Polymer)

5. LCD Type TFT Main LCD(2.2’, 176 x 220), TFT Sub LCD(1.3’ 128 X160)

6. Accessory

1)Travel Adaptor 1) Input : AC 100~240V , Output : 5.1V,700mA

2)Ear-Mic Adaptor 2) ELA (option)

3)Data Cable 3) USB data cable (option)

Item Specification

Available AC Input Power AC : 240V Max

Available DC Input Power 12 V Max

Storage Temperature -20 ~ +70 °C

LGE Internal Use Only

Only for training and service purposes

2) General Using Condition

2.3 Radio Performance

1) Transmitter-GSM Mode

2. PERFORMANCE

- 8 -

Item Spec. Min Typ. Max Unit

Output Power

DC Power 12 Vdc

Battery Power 3.2 3.7 4.2 Vdc

Input Power AC Power 100 110 240 Vac

Current Consumption W

Operation Temperature -20 60 °C

Item Specification

Phase Error

Rms : 5° Peak : 20°

Frequency Error

GSM850/EGSM : 0.1 ppm DCS/PCS : 0.1 ppm

EMC(Radiated Spurious Emission

GSM850/EGSM/DCS/PCS : < -28dBm

Disturbance)

Transmitter Output power and Burst Timing

GSM850/EGSM : 5dBm - 33dBm ± 3dB

DCS/PCS : 0dBm - 30dBm ± 3dB Burst Timing <3.69us Spectrum due to modulation out to less 200kHz : -36dBm than 1800kHz offset 600kHz : -51dBm/-56dBm

GSM850/EGSM :

1800-3000kHz :< -63dBc(-46dBm) Spectrum due to modulation out to larger 3000kHz-6000kHz : <-65dBc(-46dBm) than 1800kHz offset to the edge of the 6000kHz < : < -71dBc(-46dBm) transmit band DCS/PCS :

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

-98dBm/-96dBm (2.439%)

-GSM : -31dBm - DCS : -29dBm Timing Advance ± 0.5T

LGE Internal Use Only

2. PERFORMANCE

- 9 -

- Frequency Range : GSM850(824~849MHz/869~894MHz), EGSM(880~915MHz/925~960MHz) DCS(1710~1785MHz/1805~1880MHz), PCS (1850~1910MHz/1930~1990MHz)

- Oscillator Frequency Range : 1688 ~ 1736 MHz

- Intermediate Frequency : None

- Normal Maximum Output Power : 1995.3 mW(33dBm)

2)Transmitter - WCDMA Mode

Item Specification

Transmit Frequency

WCDMA850 : 824 MHz ~ 849 MHz

WCDMA1900 : 1850 ~1910 MHz 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 > 33 dB @ ±5 MHz, Leakage Power Ratio (ACLR) > 43 dB @ ±10 MHz

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

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

< -36 dBm / 100 kHz RW @ 30 MHz ≤ f < 1 GHz Spurious Emissions < -30 dBm / 1 MHz RW @ 1 GHz ≤ f < 12.75 GHz |f-fc| > 12.5 MHz < -41 dBm / 300 kHz RW @ 1893.5 MHz < f < 1919.6 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

Transmit Intermodulation

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

when Interference CW Signal Level = -40 dBc Error Vector Magnitude < 17.5 %, when Pout ≥ -20 dBm Peak Code Domain Error < -15 dB at Pout ≥ -20 dBm

LGE Internal Use Only

Only for training and service purposes

3)Receiver - WCDMA Mode

2. PERFORMANCE

- 10 -

Item Specification

Receive Frequency

WCDMA850 : 849 MHz ~ 894 MHz

WCDMA1900 : 1930 ~1990 MHz Reference Sensitivity Level BER < 0.001 when Îor= -106.7 dBm / 3.84 MHz Maximum Input Level BER < 0.001 when Îor= -25 dBm / 3.84 MHz Adjacent Channel ACS > 33 dB where BER < 0.001 when Îor= -92.7 dBm / 3.84 MHz Selectivity (ACS) & I

oac

= -52 dBm / 3.84 MHz @ ±5 MHz

BER < 0.001 when Îor= -103.7 dBm / 3.84 MHz Blocking Characteristic & I

blocking

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

or I

blocking

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

Spurious Response BER < 0.001 when Îor= -103.7 dBm / 3.84 MHz & I

blocking

= -44 dBm

BER < 0.001 when Îor= -103.7 dBm / 3.84 MHz Intermodulation & I

ouw1

= -46 dBm @ F

uw1

(offset) = 10 MHz

& I

ouw2

= -46 dBm / 3.84 MHz @ F

uw2

(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

LGE Internal Use Only

2. PERFORMANCE

- 11 -

2.4 Current Consumption

2.5 Operation Time

2.6 RSSI Bar

WCDMA Only GSM Only

Sleep Mode 1.5mA(sleep current) ↓ 1.5mA(sleep current) ↓

Standby 3.8mA(DRX=1.28sec) ↓ 3.8mA(PM=6) ↓

Talk Mode

VC 13dBm

323 mA (Tx Lvl:5)

(low power mode) : 323 mA↓

NO SVC Mode TBD TBD

Power Off 300µA ↓ 300µA ↓

(Backup Battery Charging) 500µA ↓ 500µA ↓

Level Change WCDMA GSM

1) BAR 5 -82 ± 2 dBm -85 ± 2 dBm

2) BAR 5 → 4 -82 ± 2 dBm -85 ± 2 dBm

3) BAR 4 → 3 -87 ± 2 dBm -90 ± 2 dBm

4) BAR 3 → 2 -92 ± 2 dBm -95 ± 2 dBm

5) BAR 2 → 1 -95 ± 2 dBm -100 ± 2 dBm

6) BAR 1 →0 -98 ± 2 dBm -105 ± 2 dBm

Stand by Voice Call VT

250 hours ↑ = 3.8mA 180 mins ↑ = 323mA

WCDMA ↓↓

Only (970mAh battery, (970mAh battery,

/

DRX cycle = 1.28) TX = 12dBm)

250 hours ↑ = 3.8mA 180 mins ↑ = 323mA GSM ↓↓ Only (970mAh battery, (970mAh battery,

/

Paging frame class6) TX = Level 5)

LGE Internal Use Only

Only for training and service purposes

2.7 Battery Bar

2.8 BACKUP BATTERY : Over 50 hours (When Normal POWER OFF/EMERGENCY OFF)

2.9 Sound Level

Key Tone

1) Standby : a) Speaker : 70~120dBspl (When 30cm distance, Maximum Tone) b) Headset : 70~100dBspl c) Warning Tone : 70~120dBspl (When 30cm distance, Maximum Tone)

2) Talk :

a) Speaker : 70 ~ 100dBspl b) Headset : 70 ~ 100dBspl (Key Tone (In Calling) 100dBspl under) c) Warning Tone : 70~100dBspl (When 30cm distance, Maximum Tone)

2. PERFORMANCE

- 12 -

Indication Standby

Bar3 3.75 ± 0.05V

Bar 3 → 2 3.75 ± 0.05V

Bar 2 → 1 3.66 ± 0.05V

Bar 1 → Empty 3.58 ± 0.05V

Low Voltage, Warning message+ 3.51 ± 0.05V (Stand-by) / 3.58 ± 0.05V (Talk)

Blinking [Interval : 3min(Stand-by) / 1min(Talk)]

Power Off 3.28 ± 0.05V

LGE Internal Use Only

3. TECHNICAL BRIEF

- 13 -

3.1 MSM6260 ( Block Diagram)

3. TECHNICAL BRIEF

MSM6260

CONNECTIVITY

CAMERA

PROCESSING

(Default 8bit

Interface)

GRAPHICS

VIDEO

AUDIO

DUAL MEMORY BUS

Modem QDSP 4000

PLL

QDSP 4000

ARM 926ejs

With Jazelle

UMTS, WCDMA,

HSDPA processor

BT 1.2

processor

Rx ADC

Tx DAC

MP3, AAC,

EVRC, QCELP

AMR, CMX, MIDI

EBI 1 EBI 2

Open GL ES

3D, 2D

MPEG-4

H.263, H.264

Keypad I/F

USB

UART1

UART2 / RUIM1

UART3 / PMIC SBI

Camera 1.3M

KEY

PAD

I/O Conn

USB

NAND Flash

1G

SDRAM

512M

LCD

(2.2inch)

PM6650

GSM/GPRS/EDGE

processor

JTAG

RF SBI

GPIO

USIM

LGE Internal Use Only

Only for training and service purposes

3.2 RF Block Diagram

3. TECHNICAL BRIEF

- 14 -

FRONT

END

MODULE

SP8T

WCDMA 850

DUPLEXER

Coupler

WCDMA 1900

DUPLEXER

Coupler

UMTS RF

GSM RF

GSM

QUAD PA

BLUETOOTH RF

WCDMA

Dual PA

GCELL/EGSM

DCS/PCS

TX SAW

FILTER

TX SAW

FILTER

TX SAW

FILTER

-LB_LNA_IN

-HB_LNA_IN LB_LNA_OUT-

LB_INP-

RX SAW

FILTER

-LB_RF_OUT2

-HB_RF_OUT1

-PWD_DET_IN

-GCELL_INP

-GCELL_INN

-EGSM_INP

-EGSM_INN

-DCS_INP

-DCS_INN

-GPCS_INP

-GPCS_INN

-LB_RF_OUT1

-HB_RF_OUT2

BLUETOOTH RF MODULE

RFR6275

HB_LNA_OUT

-

LB_INM-

RX SAW

FILTER

RTR6275

BT_SBST/CK/DT

HB_INM-

HB_INP-

Loop

filter

-V_TUNE2 TCXO

PLL2

TCXO

BT_RX_TX_N

BT_DATA

UMTS_CP_OUT-

PLL

-V_TUNE1

PLL1

TCXO 

PM6650

VCTCXO

19.2MHz

TCXO

VCONTROL-

DAC_REF -

RX_IQ -

SSBI -

SBDT -

RF_ON -

RX_IQ -

TX_IQ -

-RX_IQ

- SSBDT_RFR

-PM_SBDT

-TCXO

-TCXO_EN

-TRK_LO_ADJ

MSM6260

-TX_AGC_ADJ

-SSBDT_RTR

-TX_ON

-TX_IQ

-DAC_REF

BT_SBST/CK/DT BT_RX_TX_N BT_DATA

LGE Internal Use Only

3. TECHNICAL BRIEF

- 15 -

3.3 Memory

PMIC

MSM6260

SDRAM

512Mb

(64MB)

NAND

1Gb

(128MB)

DATA[31:0]

ADDRESS[14:0]

DATA [15:0]

WE*

CS*

CAS*

RAS*

CLK_EN

CLK

DQM[3:0]

NAND_CS*

NAND_RE*

NAND_WE*

NAND_CLE

NAND_WP*

NAND_ALE

NAND_READY

USIM

SIM_RESET

SIM_IO

SIM_CLK

EBI1 EBI2

TFLASH

TFLASH_CMD

TFLASH_DATA

TFLASH_CLK

TFLASH_DECT_N

LGE Internal Use Only

Only for training and service purposes

3.4 Camera & LCD Interface

3. TECHNICAL BRIEF

- 16 -

CAM_RESET

CAM_PWDN

VREG_CAM_2.7V

VREG_CAM_1.8V

IOVDD_2.8V (MSMP)

1.3M

Camera

I2C_SCL I2C_SDA

CAM_MCLK CAM_PCLK CAM_VSYNC CAM_HSYNC

CAM_DATA[7:0]

MSM6260

VREG_LCD_2.8V

LCD_RESET_N

EBI2_WE_N

LCD_ADS

LCD_IF_MODE

EBI2_DATA[15:0]

LCD_CS_N

SUB_LCD_CS_N

M_LCD 2.2'

TFT(QCIF)

S_LCD 1.3'

TFT(QQVGA)

LGE Internal Use Only

3. TECHNICAL BRIEF

- 17 -

3.5 Interface USB,UART,SIM,JTAG

USB

MSM6260

PM6650-2

RECEPTACLE ( I/O Conn.)

UART3 /PM_SBI

UART1

VBUS

D+

D-

SIM

UART2 /RUIM1

USB

TRANSCEIVER

I/O

RST

CLK

USB_DAT

USB_SE0

USB_OE_N

USB , UART

JTAG

SSBDT_PM

RX

TX

USIM

TRANSCEIVER

PM6650

SBI

JTAG

JTAG Interface

LGE Internal Use Only

Only for training and service purposes

3.6 Peripheral

3. TECHNICAL BRIEF

- 18 -

+VPWR

MAIN KEYPAD backlight

Remote PWR ON (Recep)

JTAG CON, UART,USB

Motor

MOTOR_PWR

USB (Recep)

USIM

PA_THERM

PM_ON_SW_N

KYPD_DRV_N

VIB_DRV_N

GP1_DRV_N

USB_D+, D-, VBUS

RUIM_IO ,CLK,

RST_N

USB_D+,D-,VBUS

TCXO

(19.2MHz)

PM6650-2

LED,Motor

USB Trans

AMUX_IN1 AMUX_IN2

USIM Level

Xtal:sleep

(32.768kHz)

Driver

Trans

SBI

TRST_N, TCK, TMS, TD I, TDO, RTCK

RESET_IN_N

PS_HOLD

TCXO_EN BUFF_TCXO

SLEEP_CLK

PM_INT_N

USB_DAT, SE0 , OE_N

AMUX_OUT

VBAT_SENSE

TTY_ADC_DET

REF_ADC

VBAT_TEMP

RUIM_M_IO, CLK, RST_N

SSBDT_PM

UART TX/RX

Xtal:USB (48MHz)

MSM6260

USB

HKADC0

HKADC1

ADC

HKADC3

HKADC4

HKADC5

UART2 (USIM)

UART3 (PM_SBI)

UART1 (IrDA)

JTAG

TFLASH_DET_N

SDCC_CMD

SDCC_DATA

SDCC_CLK

FOLDER_DET_N

KEY_ROW(0:4)

KEY_COL(0:5)

HOOK_SENSE

EAR_SENSE_N

TTY_ADC_DET

+VPWR

BACKLIGHT_CTRL

TFLASH

Hall Sensor

KEY

EAR JACK

Charge Pump

LGE Internal Use Only

3. TECHNICAL BRIEF

- 19 -

3.7 Audio Block Diagram

MSM6260

AMP

TPA2010D

SPK_AMP_EN

AMP_N

AMP_P

Loud SPEAKER

18x13 ,3.7T

8ohm, 0.8W

EAR JACK

4 Pole(

18 PIN MMI)

MIC

4Pie, 1.5T

-42dB +/-3dB

AMP_SPK+ AMP_SPK-

HPH_L HPH_R

TTY_ADC_DET

HOOK_SENSE

MIC2P

MIC1P MIC1N

MICBIAS

RCV+

RCV-

EAR_SENSE_N

VREG_MSMP_2.7V

NLA5223B

(Analog

Switch)

SPK+

SPK-

LGE Internal Use Only

Only for training and service purposes

3.8 Digital Baseband(DBB/MSM6260)

3.8.1 General Description

A. Features(MSM6260)

• Support for multimode operation - HSDPA, tri-band WCDMA (UMTS), quad GSM/GPRS/EDGE, and GPS.

• Support for HSDPA downlink up to 3.6 Mbps

• Support for WCDMA (UMTS) uplink data rate up to 384 kbps

• High-performance ARM926EJ-S running at up to 270 MHz for 3.6 Mbps HSDPA

• ARM Jazelle Java hardware acceleration for faster Java-based games and other applets

• QDSP4000 high-performance DSP cores

• Integrated gpsOne position location technology functionality

• Integrated Bluetooth 1.2 baseband processor for wireless connectivity to peripherals

• Qcamera with 30 fps QCIF viewfinder resolution, and support for 3 MP camera sensors

• Direct interface to digital camera module with video front end (VFE) image processing

• True 3D graphics for advanced wireless gaming

• SecureMSM v2.0 includes support for Open Mobile Alliance (OMA) DRM v2.0, SIM-lock and IMEI

integrity. Support for Qfuse.

• Audio on par with portable music players

• Vocoder support (AMR, FR, EFR, HR)

• Advanced 14 x 14 mm, 0.5-mm pitch, 409-pin lead-free CSP packaging technology

• SD/SDIO hardware support

3. TECHNICAL BRIEF

- 20 -

3. BB Technical Description

LGE Internal Use Only

3. TECHNICAL BRIEF

- 21 -

GSM Tx/Rx

Figure. Simplified Block Diagram

SPDT

FEM (SWPlexer + GSM_RX_SAW)

1800/1900

850/900

850

Coupler

Duplexer

1900

Coupler

Duplexer

GSM PAM

GSM 850 Rx

GSM 900 Rx

GSM 1800 Rx

GSM 1900 Rx

WCDMA

Tx/Rx

WCDMA

PAM

TX_SAW

900

TX_SAW

GSM-VCO

RTR6275

W-VCO

HDET

I/ Q

MSM6260

S S

BI

SXGA

TPA2

010

TFLA

SH

LCD

(2.2î QCIF)

NAND 1G

SDRAM

512M

Receiver

MIC

SPE AKE

R

Stereo Headset

LNA

1900

RX_SAW

RFR6275

LNA

850

RX_SAW

W-VCO

S S

BI

Bluetooth

Power

S S

BI

PM

USIM

USB

6650

+5V

- 22 -

3. TECHNICAL BRIEF

3.8.2 Block Diagram(MSM6260)

LGE Internal Use Only

Only for training and service purposes

MSM6260

CONNECTIVITY

CAMERA

PROCESSING

(Default 8bit

Interface)

GRAPHICS

VIDEO

AUDIO

DUAL MEMORY BUS

Modem QDSP 4000

PLL

QDSP 4000

ARM 926ejs With Jazelle

UMTS, WCDMA,

HSDPA processor

BT 1.2

processor

Rx ADC

Tx DAC

MP3, AAC,

EVRC, QCELP

AMR, CMX, MIDI

EBI 1 EBI 2

Open GL ES

3D, 2D

MPEG-4

H.263, H.264

Keypad I/F

USB

UART1

UART2 / RUIM1

UART3 / PMIC SBI

Camera

1.3M

KEY

PAD

I/O Conn

USB

NAND Flash

1G

SDRAM

512M

LCD

(2.2inch)

PM6650

GSM/GPRS/EDGE

processor

JTAG

RF SBI

GPIO

USIM

Figure. Simplified Block Diagram of MSM6260

LGE Internal Use Only

3. TECHNICAL BRIEF

- 23 -

3.9 Subsystem(MSM6260)

3.9.1 ARM Microprocessor Subsystem

The MSM6260 device uses an embedded ARM926EJ-S microprocessor. This microprocessor, through the system software, controls most of the functionality for the MSM, including control of the external peripherals such as the keypad, LCD, SDRAM, and NAND-Flash devices. Through a QUALCOMM proprietary serial bus interface (SBI) the ARM926EJ-S configures and controls the functionality of the RTR6275, RFR6275 and PM6650 devices.

3.9.2 WCDMA R99 features

The MSM6260 device supports the W-CDMA FDD release 99, including the following features:

■ All modes and data rates for W-CDMA 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

• The following transmit diversity modes are supported: 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 kbps

❏ Full SF range support from 4 to 256

■ SMS (CS and PS)

■ PS data rate - 384 kbps DL / 384 kbps UL

■ CS data rate - 64 kbps DL / 64 kbps UL

■ AMR (all rates)

3.9.3 GSM features

The following GSM modes and data rates are supported by the MSM6260 device hardware. Support modes conform to release '99 specifications of the sub-feature.

■ Voice features ❏ FR ❏ EFR ❏ AMR ❏ HR ❏ A5/1, A5/2, and A5/3 ciphering

LGE Internal Use Only

Only for training and service purposes

■ Circuit-switched data features ❏ 9.6k ❏ 14.4k ❏ Fax ❏ Transparent and non-transparent modes for CS data and fax ❏ No sub-rates are supported.

3.9.4 GPRS features

■ Packet switched data (GPRS) ❏ DTM (Simple Class A) operation ❏ Multi-slot class 12 data services ❏ CS schemes: CS1, CS2, CS3, and CS4 ❏ GEA1, GEA2, and GEA3 ciphering

■ Maximum of four Rx timeslots per frame

3.9.5 EDGE features

■ EDGE E2 power class for 8 PSK

■ DTM (simple Class A), multi-slot 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, 11-bit RACH

■ PBCCH support

■ 1 phase/2 phase access procedures

■ Link adaptation and IR

■ NACC, extended UL TBF.

3.9.6 MSM6260 device audio processing features

■ Integrated wideband stereo CODEC ❏ 16-bit DAC with typical 88 dB dynamic range ❏ Supports sampling rates up to 48 kHz on the speaker path and 16 kHz on the microphone path

■ VR- Voice mail + voice memo

■ Acoustic echo cancellation

■ Audio AGC

■ Audio Codecs: AMR-NB, AAC, AAC Plus, Enhanced AAC Plus, Windows Audio v9, Real Audio 8

(G2)

■ Internal vocoder supporting AMR, FR, EFR, and HR

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3.9.7 MSM6260 microprocessor subsystem

■ Industry standard ARM926EJ-S embedded microprocessor subsystem ❏ 16 kB instruction and 16 kB data cache ❏ Instruction set compatible with ARM7TDMI® ❏ ARM version 5TEJ instructions ❏ Higher performance 5 stage pipeline, Harvard cached architecture ❏ Higher internal CPU clock rate with on-chip cache

■ Java hardware acceleration

■ Enhanced memory support

■ 75 MHz and 90 MHz bus clock for SDRAM

■ 32-bit SDRAM

■ Dual memory buses separating the high-speed memory subsystem (EBI1) from low-speed

peripherals (EBI2) such as LCD panels

■ 1.8 V memory interface support for EBI1 and 1.8V or 2.6V memory interface support for EBI2

■ NAND FLASH memory interface ❏ 8/16-bit data I/O width NAND flash support ❏ 1- or 4-bit ECC ❏ 512-byte/2KB page-size support ❏ 2 chip selects supported for NAND Flash ❏ Boot from NAND ❏ Low-power SDRAM (LP-SDRAM) interface

■ Internal watchdog and sleep timers

3.9.8 Supported interface features

■ USB On-the-Go core supports both slave and host functionality

■ Three universal asynchronous receiver transmitter (UART) serial ports

■ USIM controller (via UART)

■ Integrated 4-bit secure digital (SD) controller for SD and Mini SD cards

■ Parallel LCD interface

■ General-purpose I/O pins

■ External keypad interface

3.9.9 Supported multimedia features

■ Provide additional general purpose MIPS by using: ❏ Two QDSP4000s ❏ Dedicated hardware accelerators and compression engines

■ Improve Java, BREW, and game performance ❏ Integrated Java and 2D/3D graphics accelerator with Sprite engine

■ Enable various accessories via USB host connectivity. ❏ Integrated USB host controller functionality

■ Enable compelling visual and audio applications.

LGE Internal Use Only

Only for training and service purposes

Qcamera

TM

■ High-quality digital camera processing, supporting CCD or CMOS image sensors up to 3 MP

■ 30 fps QCIF viewfinder

Qtv

TM

■ Audio and video decoder that supports VOD, MOD and Broadcast multimedia services.

■ Audio CODECs supported: AMR-NB, AAC, AAC Plus, Enhanced AAC Plus, Windows® Audio v9,

RealAudio® v8

■ Integrated stereo wideband Codec for music/digital clips

■ CMX

■ Video Codecs supported: MPEG-4, H.263, H.264, Windows Media® v9 and RealNetworks® v10

Video telephony services: Qvideophone

TM

■ A two-way mobile video conferencing solution that delivers 15 fps @ QCIF, 64kbps

■ Video CODECs supported: MPEG-4 and H.263

■ Audio CODECs supported: AMR-NB.

Qcamcorder

TM

■ Real time mobile video encoder

■ Video CODECs supported: MPEG-4, H.263

■ Audio CODECs supported: AMR-NB

■ Recording performance: 15 fps @ QCIF, 192 kbps

■ Video telephony at 15 frames per second(fps), QCIF resolution video encode at 15 fps at QCIF for

camcorder capability

■ Video decode at 15 fps at QCIF resolution, streaming or offline

gpsOne

TM

■ Integrated gpsOne processing

■ Standalone gpsOne mode in which the handset acts as a GPS receiver

CMX

TM

(MIDI and still image, animation, text, LED/vibrate support)

■ 72 simultaneous polyphonic tones

■ 44 kHz sampling rate

■ 512 kB wave table

■ Support of universal file formats ❏ Standard MIDI Format (SMF) ❏ SP-MIDI ❏ SMAF® Audio playback (MA-2, MA-3, MA-5) ❏ XMF/DLS ❏ MFil (requires Docomo license)

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LGE Internal Use Only

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■ PNG decoder

■ Pitch bend range support

■ LED/vibrate support

■ Scalable Vector Graphics (SVG- Tiny 1.1 + SVG Tiny 1.2)

■ MLZ decoder

■ Integrated PNG/SAF A.T.

Features MSM6260

Modem Tri-band WCDMA

Quad-band GSM/GPRAS/EDGE HEDGE

3.6 Mbps HSDPA GPS DTM

Processor ARM926 EJ-S-270 MHz

AHB-90 MHz for 3.6 Mbps HSDPA ARM926 EJ-S-225 MHz AHB-75 MHz for no HSDPA ARM926 EJ-S-122 MHz AHB-61 MHz for no HSDPA and limited multimedia

QDSP-100 MHz Process technology 65nm Supported RF platforms Platform B (RTR6275+RFR6275) (see Description of RF configurations Platform E (RTR6275+RFR6275) for platform definition) Platform F (RTR6285+receive diversity) HSDPA 3.6 Mbps, category 5/6 Enhanced antenna SAIC, equalizer, receive diversity Memory configuration 8/16-bit NAND and 32-bit SDRAM (See Note 2) Boradcast interface Not supported Power management IC PMIC 6650-2 USB 3-wire USB-OTG MDDI Supported Qcamera (camera interface) Up to 3.0 M pixel support Viewfinder frame rate 30 fps @ QCIF QTv (video decode) MP3, AAC, AAC+, ADPCM, MPEG4, H.263,

H.264, Real networks, Windows media, WB-AMR/+ Qvideophone (video telehony) 15 fps @ QCIF LCD HW interface Up to 24 bpp Boot mode Trusted boot mode only

Table. Summary of MSM6260 device features

LGE Internal Use Only

Only for training and service purposes

3.9.10 Serial Bus Interface(SBI)

The MSM6260 device’s SSBI is designed specifically to be a quick, low pin count control protocol for QUALCOMM’s RTR6275, RFR6275 and PM6650 ASICs. Using the SSBI, the RTR6275, RFR6275, and PM6650 devices can be configured for different operating modes and for minimum power consumption, extending battery life in Standby mode. The SSBI also controls DC baseband offset errors.

3.9.11 Wideband CODEC

The MSM6260 device integrates a wideband voice/audio CODEC into the mobile station modem (MSM). The CODEC supports two differential microphone inputs, one differential earphone output, one single-ended earphone output, and a differential analog auxiliary interface. The CODEC integrates the microphone and earphone amplifiers into the MSM6260 device, reducing the external component count to just a few passive components. The microphone (Tx) audio path consists of a two-stage amplifier with the gain of the second stage set interally. The Rx/Tx paths are designed to meet the ITU-G.712 requirements for digital transmission systems.

3.9.12 Vocoder Subsystem

The MSM6260 device’s QDSP4000 supports AMR,FR,EFR and HR. In addition, the QDSP4000 has modules to support the following audio functions: DTMF tone generation, DTMF tone detection, Tx/Rx volume controls, Tx/Rx automatic gain control (AGC), Rx Automatic Volume Control (AVC), EarSeal Echo Canceller (ESEC), Acoustic Echo Canceller (AEC), Noise Suppression (NS), and programmable, 13-tap, Type-I, FIR, Tx/Rx compensation filters. The MSM6260 device’s integrated ARM9TDMI processor downloads the firmware into the QDSP4000 and configures QDSP4000 to support the desired functionality.

3.9.13 ARM Microprocessor subsystem

The MSM6260 device uses an embedded ARM926EJ-S microprocessor. This microprocessor, through the system software, controls most of the functionality for the MSM device, including control of the external peripherals such as the keypad, LCD, RAM, ROM, and EEPROM devices. Through a generic single serial bus interface (SSBI) the ARM926EJ-S configures and controls the functionality of the RFR6275, RTR6275, and PM6650 devices.

3.9.14 Mode Select and JTAG Interfaces

The mode pins to the MSM6260 device determine the overall operating mode of the ASIC. The options under the control of the mode inputs are Native mode, which is the normal subscriber unit operation, ETM mode, which enables the built-in trace mode, and test mode for factory testing. The MSM6260 device meets the intent of the ANSI/IEEE 1149.1A-1993 feature list. The JTAG interface can be used to test digital interconnects between devices within the mobile station during manufacture.

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LGE Internal Use Only

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3.9.15 General-Purpose Input/Output Interface

The MSM6260 device has general-purpose bidirectional input/output pins. Some of the GPIO pins have alternate functions supported on them. The alternate functions include USB interface, additional RAM, ROM, general-purpose chip selects, parallel LCD interface, and a UART interface. The function of these pins is documented in the various software releases.

3.9.16 UART

The MSM6260 device employs three UARTs. UART1 has dedicated pins while UART2 and UART3 share multiplexed pins.

■ UART1 for data

■ UART2 (can be used for USIM interface)

■ UART3 for data

3.9.17 USB

The MSM6260 device integrates a universal serial bus (USB) controller that supports both unidirectional and bidirectional transceiver interfaces. The USB controller acts as a USB peripheral communicating with the USB host.

LGE Internal Use Only

Only for training and service purposes

3.10 Power Block

3.10.1 General

MSM6260, included RF, is fully covered by PM6650(Qualcomm PMIC). PM6650 cover the power of MSM6260, MSM memory, RF block, Bluetooth, Micro SD, USIM and TCXO.

Major power components are :

PM6650(U701) : Phone power supply

AAT3152IWP(U401) : LCD Backlight charge pump

BH28FB1WHFV(U402) : LCD LDO

MIC2211-LGYML(U404) : Camera dual LDO

3.10.2 PM6650

The PM6650 device (Figure 1-1) integrates all wireless handset power management. The power management portion accepts power from all the most common sources - battery, external charger, adapter, coin cell back-up - and generates all the regulated voltages needed to power the appropriate handset electronics. It monitors and controls the power sources, detecting which sources are applied, verifying that they are within acceptable operational limits, and coordinates battery and coin cell recharging while maintaining the handset electronics supply voltages. Eight programmable output voltages are generated using low dropout voltage regulators, all derived from a common trimmed voltage reference.

A dedicated controller manages the TCXO warm-up and signal buffering, and key parameters (undervoltage lockout and crystal oscillator signal presence) are monitored to protect against detrimental conditions. MSM device controls and statuses the PM6650 IC using Single Serial Bus Interface (SSBI) supplemented by an Interrupt Manager for time-critical information. Another dedicated IC Interface circuit monitors multiple trigger events and controls the power-on sequence.

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Figure. PM6650 Functional Block Diagram