LG CU400 Service Manual

Date: January, 2007 / Issue 1.0

Service Manual

Model : CU400

Service Manual

CU400

Internal Use Only

CU400 SVC cover(8)_0104 1904.1.13 3:2 PM ˘`1

- 3 -

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

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

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

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

2.1 Default Packaging Accessories ...............7

2.2 System Specification................................7

2.3 Using Condition (Accessory)....................7

2.4 Radio Performance..................................8

2.5 Current Consumption.............................11

2.6 Operation Time ......................................11

2.7 RSSI Bar................................................11

2.8 Battery Bar.............................................12

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

2.10 Sound Level.........................................12

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

3.1 MSM6280 (Block Diagram)....................13

3.2 MSM6280 (GPIO MAP) .........................14

3.3 RF Block Diagram..................................16

3.4 Memory..................................................17

3.5 Camera & LCD Interface........................18

3.6 Interface USB,UART,SIM,JTAG ............19

3.7 Power Block Diagram ............................20

3.8 Peripheral...............................................21

3.9 Audio Block Diagram .............................22

3.10 Digital Baseband(DBB/MSM6280).......23

3.11 Subsystem(MSM6280) ........................26

3.12 Power Block.........................................33

3.13 External memory interface...................38

3.14 H/W Sub System..................................39

3.15 Main Features......................................57

4. TROUBLE SHOOTING ...................62

4.1 RF Component.......................................62

4.2 Checking VCXO Block...........................66

4.3 Checking Ant. SW Module Block ...........68

4.4 Checking UMTS Block...........................71

4.5 Checking GSM Block.............................78

4.6 Power ON Troubleshooting....................86

4.7 Charger Troubleshooting .......................88

4.8 USB Troubleshooting.............................91

4.9 SIM Detect Troubleshooting ..................93

4.10 Camera Troubleshooting .....................94

4.11 Keypad Backlight Troubleshooting ......95

4.12 Folder ON/OFF Troubleshooting .........96

4.13 Main LCD Troubleshooting ..................97

4.14 Receiver Path ......................................98

4.15 Headset path......................................100

4.16 Speaker phone path...........................102

4.17 Main microphone ...............................104

4.18 Headset microphone..........................106

4.19 Vibrator ..............................................108

5. DOWNLOAD .................................109

5.1 Introduction ..........................................109

5.2 Downloading Procedure.......................109

5.3 Troubleshooting download errors ........123

5.4 Caution.................................................130

6. BLOCK DIAGRAM ........................131

6.1 CU400 Block Diagram .........................131

7. Circuit Diagram ............................133

8. pcb layout .....................................140

9. Calibration & RF Auto

Test Program ................................145

9.1 Configuration of HOT KIMCHI .............145

9.2 How to use HOT KIMCHI.....................149

9.3 Example for using HOT KIMCHI..........150

10. EXPLODED VIEW &

REPLACEMENT PART LIST ..... 153

10.1 EXPLODED VIEW ............................ 153

10.2 Replacement Parts

<Mechanic component>.................... 155

<Main component> ........................... 158

10.3 Accessory ......................................... 174

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 Default Packaging Accessories

2.2 System Specification

2.3 Using Condition (Accessory)

1) Maximum Using Condition (Using Environment)

2. PERFORMANCE

Item Specification Performance

Charging Voltage : 4.2V

1. Battery Li-ion, 1,100mAh 1ea Charging Current : 650mA (Charging Time : under 3 hours)

2.Travel Adapter Output : 4.6V, 800mA Input : AC 100 ~ 240V

Item Specification

Shape GSM850/EGSM/1800/1900 and WCDMA Slim Clamshell

Size 92.7 x 49.5 x 20.9 mm

Weight 100 g (with Battery)

Power 3.7V normal, 1100 mAh Li-Polymer

LCD TFT Main LCD(2°Ø, 262K, 176 x 220), MSTN Sub LCD

Travel Adaptor Input : AC 100~240V , Output : 4.6V, 800mA

Item Specification

Available AC Input Power AC 100 ~ 240V Max

Available DC Input Power 12V Max

Storage Temperature -30 ~ +85 °C

LGE Internal Use Only

Only for training and service purposes

2) General Using Condition

2.4 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

GSM : 0.1 ppm DCS/PCS : 0.1 ppm

EMC(Radiated Spurious Emission

GSM/DCS : < -28dBm

Disturbance)

Transmitter 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 200kHz : -36dBm than 1800kHz offset 600kHz : -51dBm/-56dBm

GSM :

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 :

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 : GSM(824~849MHz/869~894MHz), DCS(1710~1785MHz/1805~1880MHz) PCS(1850~1910MHz/1930~1990MHz)

- Oscillator Frequency Range : 1688 ~ 1736 MHz

- Intermediate Frequency : None

- Normal Maximum Output Power : 1995.3mW (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 - GSM Mode

4)Receiver - WCDMA Mode

2. PERFORMANCE

- 10 -

Item Specification

Sensitivity (TCH/FS Class II)

-105dBm (GSM / EGSM / DCS / PCS)

Co-Channel Rejection

C/Ic=7dB (GSM / EGSM)

(TCH/FS Class II, RBER, TU high/FH) Storage -30 ~ +85 (DCS / PCS) Adjacent Channel 200kHz C/la1 = -12dB(GSM / EGSM / DCS / PCS) Rejection 400kHz C/la2 = -44dB(GSM / EGSM / DCS / PCS)

Wanted Signal : -98dBm Wanted Signal : -96dBm

Intermodulation Rejection

1stinterferer : -44dBm 1stinterferer : -44dBm 2ndinterferer : -45dBm 2ndinterferer : -45dBm

(GSM / EGSM) (DCS / PCS) Blocking Response Wanted Signal : -101dBm Wanted Signal : -101dBm (TCH/FS Class II, RBER) Unwanted : Depend on Freq. Unwanted : Depend on Freq.

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 -

2.5 Current Consumption

2.6 Operation Time

2.7 RSSI Bar

WCDMA Only GSM Only

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

Standby 4.4mA(DRX=1.28sec) ↓ 4.4mA(MF=5) ↓

Talk Mode VC 12dBm : 366 mA↓ 366 mA (Tx Lvl:5) ↓

NO SVC Mode TBD TBD

Power Off 300µA ↓ 300µA ↓

(Backup Battery Charging) 500µA ↓ 500µA ↓

Level Change WCDMA GSM

BAR 5 → 4 -85 ± 2 dBm -85 ± 2 dBm BAR 4 → 3 -90 ± 2 dBm -90 ± 2 dBm BAR 3 → 2 -95 ± 2 dBm -95 ± 2 dBm BAR 2 → 1 -98 ± 2 dBm -100 ± 2 dBm BAR 1 → 0-101 ± 2 dBm -105 ± 2 dBm

Stand by Voice Call VT

250 hours ↑ = 4.4mA 180 mins ↑ = 366mA

WCDMA ↓↓

Only (1100mAh battery, (1100mAh battery,

/

DRX cycle = 1..28) TX = 12dBm)

250 hours ↑ = 4.4mA 180 mins ↑ = 366mA

GSM ↓↓

Only (1100mAh battery, (1100mAh battery,

/

Paging frame class5) TX = Level 5)

LGE Internal Use Only

Only for training and service purposes

2.8 Battery Bar

2.9 BACKUP BATTERY : over 50 hours

(when normal POWER OFF/EMERGENCY OFF)

2.10 Sound Level

Ring Tone : Cingular Requested Specification

30Cm distance : under 75dBspl

2.5Cm distance : under 115dBspl Contact : under 140dBspl (Reporting Maximum Value)

Key Tone (Only Numeric Keypad measured) :

1) Standby : a) Speaker : under 140dBspl ( when contact state / Maximum Tone ), over 70dBspl ( when

30cm distance / Minimum Tone),

b) Headset : 60 ~ 98dBspl

2) Talk : a) Speaker : 60 ~ 98dBspl b) Headset : 60 ~ 98dBspl

2. PERFORMANCE

- 12 -

Indication Standby

Bar3 Over 3.68 ± 0.05V

Bar 3 → 2 3.68 ± 0.05V

Bar 2 → 13.6 ± 0.05V

Bar 1 → Empty 3.52 ± 0.05V

Low Voltage, Warning message+ 3.42 ± 0.05V (Stand-by) / 3.52 ± 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 MSM6280 (Block Diagram)

3. RF TECHNICAL BRIEF

MSM6280

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 0.3M

KEY

PAD

I/O Conn

USB

NAND Flash

512M

SDRAM

512M

LCD

(2inch)

PM6650

GSM/GPRS/EDGE

processor

JTAG

RF SBI

GPIO

USIM

LGE Internal Use Only

Only for training and service purposes

3.2 MSM6280 ( GPIO MAP )

3. TECHNICAL BRIEF

- 14 -

GPS_SBCK (WDOG_STG)GPIO[0]

GPIO[1]

GPIO[14]

GPS_SBDT

WCDMA_SAW_SW_MODEBGPIO[3]

WCDMA_SAW_SW_MODEAGPIO[6] NCGPIO[7]

GRFC13

CAM_ENGPIO[18]

SDCC_CMDGPIO[30] SDCC_CLKGPIO[31] SDCC_DAT(0)GPIO[32]

XMEM2_CS_N(2)GPIO[35]

LCD_ENGPIO[37]

UART1_DCDGPIO[39]

UART1_DTRGPIO[44]

CU400GPIO(RFCMOS)GPIO#

PA_ON1PA_ON1GPIO[2]

GAM_PA_ENGSM_PA_EN(GRFC1)GPIO[4] GSM_PA_BANDGSM_PA_BAND(GRFC2)GPIO[5]

GSM_SAW_SW_MODEGSM_SAW_SW_MODEGPIO[8] ANT_SEL0ANT_SEL0_EN_N(GRFC6)GPIO[9] ANT_SEL1ANT_SEL1_EN_N(GRFC7)GPIO[10] ANT_SEL2ANT_SEL2_EN_N(GRFC8)GPIO[11] ANT_SEL3ANT_SEL3_EN_N(GRFC9)GPIO[12] CAM_MCLKCAM_MCLKGPIO[13]

CAM_HSYNCCAM_HSYNCGPIO[15] CAM_VSYNCCAM_VSYNCGPIO[16] CAM_VGA_RESETCAM_RESET_NGPIO[17]

LCD_BL_CTRLGP_CLKGPIO[19] BT_DATABT_DATAGPIO[20] BT_TX_RX_NBT_TX_RX_NGPIO[21] BT_SBDTBT_SBDTGPIO[22] BT_SBCKBT_SBCKGPIO[23] BT_SBSTBT_SBSTGPIO[24] BT_CLKBT_CLKGPIO[25] I2C_SDAI2C_SDAGPIO[26] I2C_SCL I2C_SCLGPIO[27] LCD_IF_MODEGPIO[28] PA_ON2PA_ON2GPIO[29]

NAND_READYNAND_READYGPIO[33] EBI2_ADDR(20);LCD_ADSA2(20)GPIO[34]

VGA_CAM_PWDNXMEM2_CS_N(3)GPIO[36]

LCD_CS_NLCD2_CS_NGPIO[38]

PM_INT_NPM_INT_NGPIO[40] EAR_SENSE_NGPIO[41] PS_HOLDPS_HOLDGPIO[42] LCD_RESET_NGPIO[43]

KEY_COL(5)KYPD_MEMOGPIO[45] KEY_ROW(2)KEYSENSE2_NGPIO[46] KEY_ROW(3)KEYSENSE3_NGPIO[47] KEY_ROW(4)KEYSENSE4_NGPIO[48] KEY_COL(4)KYPD_9GPIO[49] KEY_COL(3)KYPD_11GPIO[50] KEY_COL(2)KYPD_13GPIO[51] KEY_COL(1)KYPD_15GPIO[52] KEY_COL(0)KYPD_17GPIO[53]

LGE Internal Use Only

3. TECHNICAL BRIEF

- 15 -

GPIO[77]

GPIO[92]

GPIO[97]

GPIO[99]

GPIO[101]

CU400GPIO(RFCMOS)GPIO#

CAM_DATA(0)CAM_DATA2GPIO[54] CAM_DATA(1)CAM_DATA3GPIO[55] CAM_DATA(2)CAM_DATA4GPIO[56] CAM_DATA(3)CAM_DATA5GPIO[57] CAM_DATA(4)CAM_DATA6GPIO[58] CAM_DATA(5)CAM_DATA7GPIO[59] CAM_DATA(6)CAM_DATA8GPIO[60] CAM_DATA(7)CAM_DATA9GPIO[61] KEY_ROW(0)KEYSENSE0_NGPIO[62] KEY_ROW(1)KEYSENSE1_NGPIO[63]

UART_RIGPIO[64]

HOOK_SENSEGPIO[65]

MONO_STEREO_HS_DET_NGPIO[66]

SDRAM_DATA(16)SDRAM_DATA(16)GPIO[67] SDRAM_DATA(17)SDRAM_DATA(17)GPIO[68] SDRAM_DATA(18)SDRAM_DATA(18)GPIO[69] SDRAM_DATA(19)SDRAM_DATA(19)GPIO[70] SDRAM_DATA(20)SDRAM_DATA(20)GPIO[71] SDRAM_DATA(21)SDRAM_DATA(21)GPIO[72] SDRAM_DATA(22)SDRAM_DATA(22)GPIO[73] SDRAM_DATA(23)SDRAM_DATA(23)GPIO[74] SDRAM_DQM(3)SDRAM_DQM(3)GPIO[75]

LCD_RESET_NGPIO[76]

SDRAM_DQM(2)SDRAM_DQM(2)GPIO[78] SDRAM_ADDR(0)SDRAM_ADDR(0)GPIO[79] SPK_AMP_ENGRFC14GPIO[80]

CAM_DATA1GPIO[81]

CAM_PCLKCAM_PCLKGPIO[82] CAM_DATA0GPIO[83] UART3_TXGPIO[84] UART3_RXGPIO[85] UART3_CTS_NGPIO[86] UART3_RFR_NGPIO[87]

MSM_USIM_DATAUSIM_DATAGPIO[88] USIM_PWR_ENGPIO[89]

MSM_USIM_RST_NUSIM_RESETGPIO[90]

MSM_USIM_CLKUSIM_CLKGPIO[91]

FOLDER_DETECT SBST1GPIO[93]

TCXO_ENTCXO_ENGPIO[94]

UART_TXD UART1_TXD(NAND_BOOT_ERR)GPIO[95]

UART_RXDUART1_RXDGPIO[96] IrDA_SD PA_POWER_CTL_NGPIO[98] SDCC_DAT(1) SDCC_DAT(2)GPIO[100] SDCC_DAT(3) GRFC11GPIO[102] GRFC12GPIO[103]

LCD_MAKER_IDMDP_VSYNC_SECGPIO[104]

ON_SW_NMDP_VSYNC_PRIGPIO[105]

LGE Internal Use Only

Only for training and service purposes

3.3 RF Block Diagram

3. TECHNICAL BRIEF

- 16 -

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 

TCXO

RX_IQ -

SSBI -

SBDT -

PM6650

VCTCXO

19.2MHz

VCONTROL-

SBDT -

RF_ON -

RX_IQ -

TX_IQ -

DAC_REF -

-RX_IQ

- SSBDT_RFR

-PM_SBDT

-TCXO

-TCXO_EN

-TRK_LO_ADJ

MSM6280

-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

- 17 -

3.4 Memory

PMIC

MSM6280

SDRAM 512Mb

(64MB)

NAND

512Mb

(64MB)

DATA[31:0]

ADDRESS[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

DATA[7:0]

USIM

SIM_RESET

SIM_IO

SIM_CLK

EBI1 EBI2

LGE Internal Use Only

Only for training and service purposes

3.5 Camera & LCD Interface

3. TECHNICAL BRIEF

- 18 -

VREG_CAM_2.8V

IOVDD_2.6V (MSMP)

0.3M

Camera

VGA_CAM_RESET

VGA_CAM_PWDN

I2C_SCL I2C_SDA

CAM_MCLK CAM_PCLK CAM_VSYNC CAM_HSYNC

CAM_DATA[7:0]

MSM6280

VREG_MSMP_2.6V

LCD_RESET_N

EBI2_WE_N

LCD_ADS

LCD_IF_MODE

EBI2_DATA[15:0]

LCD_CS_N

SUB_LCD_CS_N

LCD_MAKER_ID

M_LCD "2

TFT(QCIF)

S_LCD"0.98

MSTN

LGE Internal Use Only

3. TECHNICAL BRIEF

- 19 -

3.6 Interface USB,UART,SIM,JTAG

USB

MSM6280

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

3.7 Power Block Diagram

3. TECHNICAL BRIEF

- 20 -

+VPWR

resistor

VCOIN

CHG_CTL_N

USB_VBU

ISNS_P

BAT_FET_N

Pass Tr

+5V_PWR

Receptacle

- +

Pass Tr

Sense

+VPWR

V

B

A

T

FET

VCHG

S

ISNS_M

USB_VBUS

VDD_MSM VDD_RF VDD_MAIN VDD_SPKR VDD_WLAN

VDD_PA VDD_MSMC VDD_MSME VDD_RUIM VDD_ANA

Pin73-VREG_RFTX

Pin81-VREG_SYNTH Pin67-VREG_RFRX2

Pin69-VREG_RFRX1

PM6650-2

VREG_MSMP (2.6V/300mA)

VREG_MSMC (1.25V/500mA)

VREG_MSMA (2.6V/300mA)

VREG_MSME(1.8V/500mA)

VREG_RFTX (2.6V/150mA)

VREG_SYNTH(2.6V/50mA)

VREG_RFRX1 (2.6V/150mA)

VREG_RF_2.85V(2.85V/150mA)

FET

+VPWR

8

_

V

2

.

R

V

G

_

E

M

A

C

G

N

(

_

E

R

V

E

R

V

G

_

VREG_TCXO (2.85V/ 50mA)

G

E

R

V

B

L

W

A

/

V

5

8

.

2

(

M

I

U

R

_

VREG_W_PA

(

1

0

m

5

A

2

(

)

T

8

5

V

.

m

)

A

0

5

1

MCP

SDRAM

NAND FLASH

TR, Other

MSM6280

RTR6275

FEM

RFR6275

PAM(W850

/W1900)

+VPWR

PAM(GSM)

)

0

1

5

/

)

A

m

Bluetooth

TCXO

USIM

TR, Other

VREG_MSMP_2.6V (2.6V/300mA)

VREG_MSMP_2.6V

Charge Pump

BACKLIGHT_CTRL

SPK_AMP_EN

+VPWR

IOVDD

AVDD

0.3M

CAMERA

LCD

LCD Backlight

TPA2005

LGE Internal Use Only

3. TECHNICAL BRIEF

- 21 -

3.8 Peripheral

Charge Pump

+VPWR

MSM6280

PM6650-2

MAIN KEYPAD backlight

USB (Recep)

TCXO

(19.2MHz)

Xtal:sleep

(32.768kHz)

USIM

KYPD_DRV_N

Xtal:USB

(48MHz)

VIB_DRV_N

GP1_DRV_N

RUIM_IO ,CLK,

RST_N

RUIM_M_IO, CLK, RST_N

USB_DAT, SE0 , OE_N

USB_D+, D-, VBUS

SSBDT_PM

AMUX_IN2

AMUX_IN1

USB

BUFF_TCXO

SLEEP_CLK

Remote PWR ON (Recep)

TRST_N, TCK, TMS, TDI, TDO, RTCK

PM_INT_N

PS_HOLD

TCXO_EN

PM_ON_SW_N

RESET_IN_N

JTAG

LED,Motor

Driver

USIM Level

Trans

SBI

USB Trans

ADC

AMUX_OUT

+VPWR

Motor

VBAT_SENSE

REF_ADC

VBAT_TEMP

HKADC0

HKADC1

HKADC3

HKADC4

HKADC5

PA_THERM

UART2 (USIM)

UART3 (PM_SBI)

UART1 (IrDA)

UART TX/RX

JTAG CON, UART,USB

USB_D+,D-,VBUS

KEY_ROW(0:4)

KEY_COL(0:5)

FOLDER_DET_N

Hall Sensor

BACKLIGHT_CTRL

HOOK_SENSE

EAR_SENSE_N

EAR JACK

KEY

MOTOR_PWR

TTY_ADC_DET

LGE Internal Use Only

Only for training and service purposes

3.9 Audio Block Diagram

3. TECHNICAL BRIEF

- 22 -

MSM6280

LINE_N

LINE_P

SPK_AMP_EN

HPH_L HPH_R

MICBIAS

MIC1P MIC1N

Amp

TPA2005D

MIC

4Pie, 1.1T

-42dB +/-3dB

SPK+

SPK-

EAR_SENSE_N

TTY_ADC_DET

HOOK_SENSE

MIC2P

VREG_MSMP_2.7V

RCV+ RCV-

Loud SPEAKER

20Pie,3.7T

8ohm, 1.2W

EAR JACK

4 Pole

Receiver

13Pie*3T

32ohm, 30mW

HAC

LGE Internal Use Only

3. TECHNICAL BRIEF

- 23 -

3. BB Technical Description

3.10 Digital Baseband(DBB/MSM6280)

3.10.1 General Description

A. Features(MSM6280)

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

• Support for HSDPA downlink up to 7.2Mbps (initial commercial release will support 3.6Mbps

• HSDPA. Later releases will have support for 7.2 Mbps HSDPA)

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

• High-performance ARM926EJ-S running at up to 225 MHz (later at 270 MHz for 7.2 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 15 fps QVGA viewfinder resolution, and support for 4 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 Q-fuse.

• 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

- 24 -

3. TECHNICAL BRIEF

LGE Internal Use Only

Only for training and service purposes

FEM (SWPlexer + GSM_RX_SAW)

1800/1900

850/900

TX_SAW

RFR6275

RTR6275

MSM6280

PM665

0

VGA

Bluetooth

TX_SAW

850

SPDT

GSM Tx/Rx

SS

BI

SS

BI

I/Q

Earpiece

MIC

Power

GSM PAM

RX_SAW

W-VCO

HDET

GSM 850 Rx

GSM 1800 Rx

GSM 1900 Rx

Duplexer

1900

Coupler

LNA

1900

LNA

850

GSM-VCO

W-VCO

WCDMA

Tx/Rx

USIM

USB

+5V

NAND

512M

SDRAM

512M

SPEAKER

LCD

(2 QCIF)

Stereo

Headset

TPA2005

TX_SAW

900

WCDMA

PAM

GSM 900 Rx

Coupler

RX_SAW

SS

BI

Figure. Simplified Block Diagram

- 25 -

3. TECHNICAL BRIEF

3.10.2 Block Diagram(MSM6280)

LGE Internal Use Only

MSM6280

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 0.3M

KEY

PAD

I/O Conn

USB

NAND Flash

512M

SDRAM

512M

LCD

(2.0)

PM6650

GSM/GPRS/EDGE

processor

JTAG

RF SBI

GPIO

USIM

Figure. Simplified Block Diagram of MSM6280

LGE Internal Use Only

Only for training and service purposes

3.11 Subsystem(MSM6280)

3.11.1 ARM Microprocessor Subsystem

The MSM6280 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.

3.11.2 WCDMA R99 features

The MSM6280 device supports release 99 June 2004 of the W-CDMA FDD standard, 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)

3.11.3 GSM features

The following GSM modes and data rates are supported by the MSM6280 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

3. TECHNICAL BRIEF

- 26 -

LGE Internal Use Only

3. TECHNICAL BRIEF

- 27 -

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

3.11.4 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

3.11.5 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.

3.11.6 MSM6280 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

LGE Internal Use Only

Only for training and service purposes

3.11.7 MSM6280 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

Please note that NOR/PSRAM will not be supported on MSM6280.

❏ 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 or 2.6 V memory interface support (excluding EBI1) ❏ 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

3.11.8 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

3.11.9 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.

3. TECHNICAL BRIEF

- 28 -

LGE Internal Use Only

3. TECHNICAL BRIEF

- 29 -

Qcamera

TM

■ High-quality digital camera processing, supporting CCD or CMOS image sensors up to 4-megapixel with 15 fps capture rate

■ 15 fps QVGA 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

■ 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.H.264

■ Audio Codecs supported: AMR-NB, AAC

■ Recording performance: 15 fps @ QVGA, 384 kbps

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/OLS ❏ MFil (requires Docomo license)

■ PNG decoder

■ Pitch bend range support

■ LED/vibrate support

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

LGE Internal Use Only

Only for training and service purposes

■ MLZ decoder

■ Integrated PNG/SAF A.T.

3. TECHNICAL BRIEF

- 30 -

Processor MSM6280 device

ARM926 EJ-S-225 MHz and 270 MHz

Process technology

(for 3.6 Mbps and 7.2 Mbps HSDPA) ADSP-75 MHz and 90 MHz (for 3.6 Mbps and 7.2 Mbps HSDPA)

MDSP-61.44 MHz Broadcast 90 nm High speed serial interface TSIF (dedicated) Security/digital rights management Mobile display digital interface (MDDI)

Supported RF platforms

OMA DRM v2.0

Q-fuse supported gpsOne Tri-band UMTS(3U). Platform B (RFCMOS), Platform D (Diversity) 16-bit burst NOR flash +

Not supported 16-bit or 32-bit burst PSRAM

8-bit or 16-bit NAND flash + 32-bit Supported SDRAM Only 32-bit SDRAM supported USB USB-OTG Qcamcorder 15 fps @ QVGA, 15 fps QVGA viewfinder

Qtv (video decode)

30 fps @ QVGA playback

15 fps @ QVGA streaming Qvideophone (video telephony) 15 fps @ QCIF Qcamera (camera interface) 4M pixel support

Audio/video decoders

MP3, AAC, AAC+, Enhanced AAC+ ADPCM, MP4, H.263.

H.264, Windows Media, Real 2D/3D graphics HW acceleration HW-100K triangles/sec

Table 1-1 Summary of MSM6280 device features

LGE Internal Use Only

3. TECHNICAL BRIEF

- 31 -

3.11.10 Serial Bus Interface(SBI)

The MSM6280 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.

3.11.11 Wideband CODEC

The MSM6280 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 MSM6280 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.

3.11.12 Vocoder Subsystem

The MSM6280 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 MSM6280 device’s integrated ARM9TDMI processor downloads the firmware into the QDSP4000 and configures QDSP4000 to support the desired functionality.

3.11.13 ARM Microprocessor subsystem

The MSM6280 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.

3.11.14 Mode Select and JTAG Interfaces

The mode pins to the MSM6280 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 MSM6280 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.