LG KP210, KP215 Service Manual

Service Manual

KP210/KP215

Model : KP210/KP215

Date: February, 2008 / Issue 1.0

- 3 -

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

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

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

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

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

2.1 H/W Features.......................................... 9

2.2 Technical Specification(KP210a) .......... 10

2.3 Technical Specification (KP215b) ......... 15

3. TECHNICAL BRIEF ....................... 20

3.1 TX module (SKY77517/SKY77518, U401)

.............................................................. 20

3.2 Transceiver (AD6548, U402) ................ 22

3.3 26 MHz Clock (Crystal, X401)............... 24

3.4 Baseband Processor (AD6721, U102).. 25

3.5 Display and Interface ............................ 31

3.6 Camera Interface(AIT701G, U300)....... 33

3.7 Keypad Switches and Scanning ............35

3.8 Microphone ............................................36

3.9 Main Speaker.........................................37

3.10 Headset Interface.................................38

3.11 Key Back-light Illumination...................39

3.12 LCD Back-light Illumination..................40

3.13 VIBRATOR...........................................41

3.14 Battery Charging ..................................42

4. TROUBLE SHOOTING ...................43

4.1 RF Component.......................................43

4.2 RX Trouble.............................................44

4.3 TX Trouble .............................................49

4.4 Power On Trouble..................................55

4.5 Charging Trouble ...................................57

4.6 Vibrator Trouble .....................................59

4.7 LCD Trouble...........................................61

4.8 Camera Trouble .....................................64

4.9 Speaker Trouble ....................................67

4.10 SIM Card Interface Trouble..................69

4.11 Earphone Trouble ................................71

4.12 KEY backlight Trouble .........................73

4.13 Receiver Trouble..................................75

4.14 Microphone Trouble .............................77

4.15 RTC Trouble ........................................79

4.16 Folder on/off Trouble............................81

4.17 Micro SD Trouble .................................83

5. DOWNLOAD.......................................85

5.1 Download ...............................................85

6. BLOCK DIAGRAM ..........................91

7. CIRCUIT DIAGRAM ........................93

8. BGA IC Pin Check ..........................99

9. PCB LAYOUT................................103

10. ENGINEERING MODE ................109

10.1 BB Test [MENU 1]..............................110

10.2 RF Test [MENU 2]..............................112

10.3 MF mode [MENU 3] ...........................112

10.4 Trace option [MENU 4] ......................113

10.5 Call timer [MENU 5] ...........................113

10.6 Fact. Reset [MENU 6] ........................113

10.7 S/W version........................................113

11. STAND ALONE TEST .................114

11.1 Introduction ........................................114

11.2 Setting Method...................................114

11.3 Means of Test ....................................115

12. AUTO CALIBRATION..................117

12.1 Overview ............................................117

12.2 Equipment List ...................................117

12.3 Test Jig Operation..............................118

12.4 Procedure ..........................................119

12.5 AGC ...................................................121

12.6 APC....................................................121

12.7 ADC ...................................................121

13. EXPLODED VIEW &

REPLACEMENT PART LIST ..... 123

13.1 Exploded View .................................. 123

13.2 Replacement Parts ............................125

Table Of Contents

LGE Internal Use Only

- 4 -

LGE Internal Use Only

Only for training and service purposes

- 5 -

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

LGE Internal Use Only

- 6 -

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 matb which is also grounded.

• Use a suitable, grounded soldering iron.

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

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

LGE Internal Use Only

Only for training and service purposes

- 7 -

1. INTRODUCTION

1.3 Abbreviations

For the purposes of this manual, following abbreviations apply:

LGE Internal Use Only

APC Automatic Power Control

BB Baseband

BER Bit Error Ratio

CC-CV Constant Current – Constant Voltage

DAC Digital to Analog Converter

DCS Digital Communication System

dBm dB relative to 1 milli watt

DSP Digital Signal Processing

EEPROM Electrical Erasable Programmable Read-Only Memory

ESD Electrostatic Discharge

FPCB Flexible Printed Circuit Board

GMSK Gaussian Minimum Shift Keying

GPIB General Purpose Interface Bus

GSM Global System for Mobile Communications

IPUI International Portable User Identity

IF Intermediate Frequency

LCD Liquid Crystal Display

LDO Low Drop Output

LED Light Emitting Diode

OPLL Offset Phase Locked Loop

- 8 -

1. INTRODUCTION

LGE Internal Use Only

Only for training and service purposes

PAM Power Amplifier Module

PCB Printed Circuit Board

PGA Programmable Gain Amplifier

PLL Phase Locked Loop

PSTN Public Switched Telephone Network

RF Radio Frequency

RLR Receiving Loudness Rating

RMS Root Mean Square

RTC Real Time Clock

SAW Surface Acoustic Wave

SIM Subscriber Identity Module

SLR Sending Loudness Rating

SRAM Static Random Access Memory

PSRAM Pseudo SRAM

STMR Side Tone Masking Rating

TA Travel Adapter

TDD Time Division Duplex

TDMA Time Division Multiple Access

UART Universal Asynchronous Receiver/Transmitter

VCO Voltage Controlled Oscillator

VCTCXO Voltage Control Temperature Compensated Crystal Oscillator

WAP Wireless Application Protocol

- 9 -

2. PERFORMANCE

2.1 H/W Features

2. PERFORMANCE

LGE Internal Use Only

Item Feature Comment

Standard Battery Li-ion, 3.7V 800mAh

Talk time Up to 180min: GSM Tx Level 7

Stand by time Up to 250 hours (Paging Period: 5, RSSI: -85 dBm)

Charging time Approx. 2.5 hours

RX Sensitivity -102dBm

TX output power

GSM850, GSM900: 32.5dBm(Level 5), DCS, PCS: 29.5dBm(Level 0)

GPRS compatibility Class 10

SIM card type 3V Small

Display

MAIN: TFT 128 × 160 pixel 262K Color

SUB: CSTN 96 × 64 pixel 65K Color

Hard icons. Key Pad

Status Indicator

0 ~ 9, #, *, Up/Down/Left/Right/Ok Navigation Key Menu Key, Clear Key, Back Key, Confirm Key Send Key, Volume Key, PWR Key, Camera Key, Hot Key

ANT Internal

EAR Phone Jack Yes (Stereo)

PC Synchronization Yes

Speech coding EFR/FR/HR

Data Yes

Vibrator Yes

Loud Speaker Yes

Voice Recoding Yes

Microphone Yes

Speaker/Receiver One way speaker

Travel Adapter Yes

MIDI SW MIDI

Camera VGA

- 10 -

2. PERFORMANCE

2.2 Technical Specification(KP210a)

LGE Internal Use Only

Only for training and service purposes

Item Description Specification

GSM850

TX: 824 + 0.2 x (n-127) MHz

1Frequency Band

RX: 869 + 0.2 x (n-127) MHz ( n = 128 ~ 251)

PCS1900

TX: 1850 + ( n-511) x 0.2 MHz RX: 1930 + ( n-511) x 0.2 MHz (n = 512 ~ 810)

2 Phase Error

RMS < 5 degrees Peak < 20 degrees

3 Frequency Error < 0.1ppm

GSM850

Level Power Toler. Level Power Toler.

5 33 dBm 2dB 13 17 dBm 3dB

6 31 dBm 3dB 14 15 dBm 3dB

7 29 dBm 3dB 15 13 dBm 3dB

8 27 dBm 3dB 16 11 dBm 5dB

9 25 dBm 3dB 17 9 dBm 5dB

10 23 dBm 3dB 18 7 dBm 5dB

11 21 dBm 3dB 19 5 dBm 5dB

4 Power Level 12 19 dBm 3dB

PCS

Level Power Toler. Level Power Toler.

0 30 dBm 2dB 8 14 dBm 3dB

1 28 dBm 3dB 9 12 dBm 4dB

2 26 dBm 3dB 10 10 dBm 4dB

3 24 dBm 3dB 11 8 dBm 4dB

4 22 dBm 3dB 12 6 dBm 4dB

5 20 dBm 3dB 13 4 dBm 4dB

6 18 dBm 3dB 14 2 dBm 5dB

7 16 dBm 3dB 15 0 dBm 5dB

5

EDGE

Not support

Max. Power

6

EDGE

Not support

Modulation Accuracy

- 11 -

2. PERFORMANCE

LGE Internal Use Only

Item Description Specification

GSM850

Offset from Carrier (kHz). Max. [dBc]

100 0.5

200 -30

250 -33

400 -60

600 ~ 1,200 -60

1,200 ~ 1,800 -60

1,800 ~ 3,000 -63

3,000 ~ 6,000 -65

7

Output RF Spectrum 6,000 -71

(Due to Modulation) PCS

Offset from Carrier (kHz). Max. [dBc]

100 0.5

200 -30

250 -33

400 -60

600 ~ 1,200 -60

1,200 ~ 1,800 -60

1,800 ~ 3,000 -65

3,000 ~ 6,000 -65

6,000 -73

GSM850

Offset from Carrier (kHz) Max. [dBm]

Output RF Spectrum 400 -19

8

(Due to Switching) 600 -21

1,200 -21

1,800 -24

- 12 -

2. PERFORMANCE

LGE Internal Use Only

Only for training and service purposes

Item Description Specification

PCS

Offset from Carrier (kHz) Max. [dBm]

Output RF Spectrum 400 -22

8

(Due to Switching) 600 -24

1,200 -24

1,800 -27

9 Spurious Emissions

Conduction, Emission Status

Radiation, Emission Status

GSM850

10 Bit Error Ratio

BER (Class II) < 2.439% @-102dBm

PCS

BER (Class II) < 2.439% @-102dBm

11 Rx Level Report accuracy 3 dB

12 SLR 8 3 dB

Frequency (Hz) Max.(dB) Min.(dB)

100 -12 -

200 0 -

300 0 -12

13 Sending Response 1,000 0 -6

2,000 4 -6

3,000 4 -6

3,400 4 -9

4,000 0 -

14 RLR(Normal volume) -4 3 dB

Frequency (Hz) Max.(dB) Min.(dB)

100 -6 -

Receiving Response

200 2 -

15

(Type 3.2)

300 2 -9

1,000 2 -7

3,400 2 -12

4,000 2 -

- 13 -

2. PERFORMANCE

LGE Internal Use Only

Item Description Specification

16 STMR > 17 dB

17 Echo Loss > 40 dB

18 Idle Noise Sending < -64 dBm0p

19 Idle Noise Receiving < -36 dBm0p

Max. power < 330mA @GSM850, PL=5 < 250mA @PCS, PL=0

Standby < 5.5mA @PP2 < 3.3mA @PP5

20 Power consumption

< 2.7mA @PP9

Bluetooth (not support)

FM radio (not support)

Backup Battery(Without Main Battery) Normal Power Off: < 5uA Emergency Power Off: < 15uA

2.2 hr., Min.@GSM850, PL=5

21 Talk Time

4.0 hr., Min.@GSM850, PL=12

3.0 hr., Min.@PCS, PL=0

5.0 hr., Min.@PCS, PL=10

270 hr., Min.@PP9 220 hr., Min.@PP5

22 Standby Time - Full charge, no receive/send and keep GSM in idle mode

Broadcast set off. Signal strength display set at 3

levelabove. Backlight of phone set off.

At least 55 dB under below conditions:

23 Ringer Volume(TBD) 1. Ringer set as ringer.

2. Test distance set as 1 m.

24 Charge Current

Fast Charge: < 500 mA

Slow Charge: < 120 mA

25 Charging Time Under 3 hr.

- 14 -

2. PERFORMANCE

LGE Internal Use Only

Only for training and service purposes

Item Description Specification

Antenna Bar Number Power

5 -92 dBm ~

4-100 dBm ~ –93 dBm

26 Antenna Display 3 skip

2-103 dBm ~ –101 dBm

1-105 dBm ~ –104 dBm

0~ –105 dBm

Battery Bar Number Voltage

1 → 03.54V 0.05V

27 Battery Indicator(TBD) 2 → 13.64V 0.05 V

3 → 23.75V 0.05 V

3 4.2V

28 Low Voltage Warning(TBD)

3.54 0.05 V (Call)

3.40 0.05 V (Standby)

29 Forced shut down Voltage 3.33 0.05V

30 Battery Type

Main Battery: Li-ion, 800mAh, Hard pack Back-up Battery: Lithium, 1mAh

31 Travel Charger

Input: 100 ~ 240 V, 50/60Hz Output: 4.8V, 900mA

- 15 -

2. PERFORMANCE

LGE Internal Use Only

2.3 Technical Specification (KP215b)

Item Description Specification

GSM900

1) PGSM TX: 890 + 0.2 x n MHz

1Frequency Band

RX: 935 + 0.2 x n MHz (n = 1 ~ 124)

2) EGSM TX: 890 + 0.2 x (n-1024) MHz RX: 935 + 0.2 x (n-1024) MHz n = 975 ~ 1023)

DCS1800

TX: 1710.2 + 0.2 x (n-512) MHz RX: 1805.2 + 0.2 x (n-512) MHz (n = 512 ~ 885)

2 Phase Error

RMS < 5 degrees Peak < 20 degrees

3 Frequency Error < 0.1ppm

GSM900

Level Power Toler. Level Power Toler.

5 33 dBm 2dB 13 17 dBm 3dB

6 31 dBm 3dB 14 15 dBm 3dB

7 29 dBm 3dB 15 13 dBm 3dB

8 27 dBm 3dB 16 11 dBm 5dB

9 25 dBm 3dB 17 9 dBm 5dB

10 23 dBm 3dB 18 7 dBm 5dB

11 21 dBm 3dB 19 5 dBm 5dB

4 Power Level 12 19 dBm 3dB

DCS1800

Level Power Toler. Level Power Toler.

0 30 dBm 2dB 8 14 dBm 3dB

1 28 dBm 3dB 9 12 dBm 4dB

2 26 dBm 3dB 10 10 dBm 4dB

3 24 dBm 3dB 11 8 dBm 4dB

4 22 dBm 3dB 12 6 dBm 4dB

5 20 dBm 3dB 13 4 dBm 4dB

6 18 dBm 3dB 14 2 dBm 5dB

7 16 dBm 3dB 15 0 dBm 5dB

5

EDGE

Not support

Max. Power

6

EDGE

Not support

Modulation Accuracy

- 16 -

2. PERFORMANCE

LGE Internal Use Only

Only for training and service purposes

Item Description Specification

GSM900

Offset from Carrier (kHz). Max. [dBc]

100 0.5

200 -30

250 -33

400 -60

600 ~ 1,200 -60

1,200 ~ 1,800 -60

1,800 ~ 3,000 -63

3,000 ~ 6,000 -65

7

Output RF Spectrum 6,000 -71

(Due to Modulation) DCS1800

Offset from Carrier (kHz). Max. [dBc]

100 0.5

200 -30

250 -33

400 -60

600 ~ 1,200 -60

1,200 ~ 1,800 -60

1,800 ~ 3,000 -65

3,000 ~ 6,000 -65

6,000 -73

GSM900

Offset from Carrier (kHz) Max. [dBm]

Output RF Spectrum 400 -19

8

(Due to Switching) 600 -21

1,200 -21

1,800 -24

- 17 -

2. PERFORMANCE

LGE Internal Use Only

Item Description Specification

DCS1800

Offset from Carrier (kHz) Max. [dBm]

Output RF Spectrum 400 -22

8

(Due to Switching) 600 -24

1,200 -24

1,800 -27

9 Spurious Emissions

Conduction, Emission Status

Radiation, Emission Status

GSM900

10 Bit Error Ratio

BER (Class II) < 2.439% @-102dBm

DCS1800

BER (Class II) < 2.439% @-102dBm

11 Rx Level Report accuracy 3 dB

12 SLR 8 3 dB

Frequency (Hz) Max.(dB) Min.(dB)

100 -12 -

200 0 -

300 0 -12

13 Sending Response 1,000 0 -6

2,000 4 -6

3,000 4 -6

3,400 4 -9

4,000 0 -

14 RLR(Normal volume) -4 3 dB

Frequency (Hz) Max.(dB) Min.(dB)

100 -6 -

Receiving Response

200 2 -

15

(Type 3.2)

300 2 -9

1,000 2 -7

3,400 2 -12

4,000 2 -

- 18 -

2. PERFORMANCE

LGE Internal Use Only

Only for training and service purposes

Item Description Specification

16 STMR > 17 dB

17 Echo Loss > 40 dB

18 Idle Noise Sending < -64 dBm0p

19 Idle Noise Receiving < -36 dBm0p

Max. power < 330mA @GSM850, PL=5 < 250mA @PCS, PL=0

Standby < 5.5mA @PP2 < 3.3mA @PP5

20 Power consumption

< 2.7mA @PP9

Bluetooth (not support)

FM radio (not support)

Backup Battery(Without Main Battery) Normal Power Off: < 5uA Emergency Power Off: < 15uA

2.2 hr., Min.@GSM900, PL=5

21 Talk Time

4.0 hr., Min.@GSM900, PL=12

3.0 hr., Min.@DCS, PL=0

5.0 hr., Min.@DCS, PL=10

270 hr., Min.@PP9 220 hr., Min.@PP5

22 Standby Time - Full charge, no receive/send and keep GSM in idle mode

Broadcast set off. Signal strength display set at 3

levelabove. Backlight of phone set off.

At least 55 dB under below conditions:

23 Ringer Volume(TBD) 1. Ringer set as ringer.

2. Test distance set as 1 m.

24 Charge Current

Fast Charge: < 500 mA

Slow Charge: < 120 mA

25 Charging Time Under 3 hr.

Item Description Specification

Antenna Bar Number Power

5-92 dBm ~

4-100 dBm ~ -93 dBm

26 Antenna Display 3 skip

2-103 dBm ~ -101 dBm

1-105 dBm ~ -104 dBm

0~ -105 dBm

Battery Bar Number Voltage

1 → 03.54V 0.05V

27 Battery Indicator(TBD) 2 → 13.64V 0.05 V

3 → 23.75V 0.05 V

3 4.2V

28 Low Voltage Warning(TBD)

3.54 0.05 V (Call)

3.40 0.05 V (Standby)

29 Forced shut down Voltage 3.33 0.05V

30 Battery Type

Main Battery: Li-ion, 800mAh, Hard pack Back-up Battery: Lithium, 1mAh

31 Travel Charger

Input: 100 ~ 240 V, 50/60Hz Output: 4.8V, 900mA

- 19 -

2. PERFORMANCE

LGE Internal Use Only

- 20 -

3. TECHNICAL BRIEF

3.1 TX module (SKY77517/SKY77518, U401)

The SKY77517 is a Transmit and receive front-end-module (FEM) with Integrated Power Amplifier Control (iPAC) for dual-band cellular handsets comprising GSM850 and PCS1900 operation. Designed in a low profile, compact form factor, the SKY77517 offers a complete Transmit VCO-toAntenna and Antenna-to-Receive SAW filter solution. The FEM also supports class 12 General Packet Radio Service (GPRS) multi-slot operation.

The module consists of a GSM850 PA block and a PCS1900 PA block, impedance-matching circuitry for 50 ohm input and output impedances, TX harmonics filtering, high linearity and low insertion loss PHEMT RF switches, diplexer and a Power Amplifier Control (PAC) block with internal current sense resistor. A custom BiCMOS integrated circuit provides the internal PAC function and decoder circuitry to control the RF switches. The two Heterojunction Bipolar Transistor (HBT) PA blocks are fabricated onto a single Gallium Arsenide (GaAs) die. One PA block supports the GSM850 band and the other PA block supports the PCS 1900 band. Both PA blocks share common power supply pads to distribute current. The output of each PA block and the outputs to the two receiver pads are connected to the antenna pad through PHEMT RF switches and a diplexer. The GaAs die, PHEMT die, Silicon (Si) die and passive components are mounted on a multi-layer laminate substrate. The assembly is encapsulated with plastic overmold.

Band selection and control of transmit and receive modes are performed using two external control pads. Refer to the functional block diagram in Figure 3.1 below. The band select pad (BS) selects between GSM and PCS modes of operation. The transmit enable (TX_EN) pad controls receive or transmit mode of the respective RF switch (TX = logic 1). Proper timing between transmit enable (TX_EN) and Analog Power Control (VRAMP) allows for high isolation between the antenna and TX_VCO while the VCO is being tuned prior to the transmit burst.

The SKY77517 is compatible with logic levels from 1.2V to VCC for BS and TX_EN pads, depending on the level applied to the VLOGIC pad. This feature provids additional flexibility for the designer in the selection of FEM interface control logic.

The SkY77518 is Txmodule for GSM900/DCS1800 dual-band. Every function and logic is equal tom the SKY77517.

3. TECHNICAL BRIEF

LGE Internal Use Only

Only for training and service purposes

Figure 3.1.1 Functional Block Diagram

- 21 -

3. TECHNICAL BRIEF

LGE Internal Use Only

Pin Mame Description

1 VCATT Battery input voltage

2 VLOGIC Control logic level selection/Standby control

3 VRAMP Analog power control voltage input

4 TX_EN TX/RX select (mode control)

5BSBand Select (mode control)

6 DCS_RX DCS Receive RF Output (1930-1990 MHz)

7 GSM_RX GSM Receive RF Output (869-894 MHz)

8-10 GND RF and DC Ground

11 ANT RF_IN/RF_OUT to Antenna

12-16 GND RF and DC Ground

17 GSM_IN RF input 824-849 MHz

18 NC No Connect

19 DCS_IN RF input 1850-1910 MHz

20 GND RF and DC Ground

GMD PADS GROUND GRID Ground Pads, module underside

Mode VLOGIC

Input Control Bits

TX_En BS

STANDBY 0 X

1

X

1

GSM_RX 1 0 0

CS_RX 1 0 1

GSM_TX 1 1 0

PCS_TX 1 1 1

Table 3.1.1 Pad description

Table 3.1.2 Mode Control logic

Figure 3.1.2 Pad configuration (Top view) and case marking

LGE Internal Use Only

Only for training and service purposes

3.2 Transceiver (AD6548, U402)

The AD6548 provides a highly integrated direct conversion radio solution that combines, on a single chip, all radio and power management functions necessary to build the most com-pact GSM radio solution possible. The only external components required for a complete radio design are the Rx SAWs, PA, Switchplexer and a few passives enabling an extremely small cost effective GSM Radio solution. The AD6548 uses the industry proven direct conversion receiver architecture of the OthelloTM family. For Quad band applications the front end features four fully integrated programmable gain differential LNAs. The RF is then down converted by quad-rature mixers and then fed to the baseband programmable-gain amplifiers and active filters for channel selection. The Receiver output pins can be directly connected to the baseband analog processor. The Receive path features automatic calibration and tracking to remove DC offsets. The transmitter features a translation-loop architecture for directly modulating baseband signals onto the integrated TX VCO.

The translation-loop modulator and TX VCO are extremely low noise removing the need for external SAW filters prior to the PA. The AD6548 uses a single integrated LO VCO for both the receive and the transmit circuits. The synthesizer lock times are optimized for GPRS applications up to and including class 12.

AD6548 incorporates a complete reference crystal calibration system. This allows the external VCTCXO to be replaced with a low cost crystal. No other external components are required. The AD6548 uses the traditional VCTCXO reference source. The AD6548 also contains on-chip low dropout voltage regulators (LDOs) to deliver regulated supply voltages to the functions on chip, with a battery input voltage of between 2.9V and 5.5V. Comprehensive power down options are included to minimize power consumption in normal use. A standard 3 wire serial interface is used to program the IC. The interface features low-voltage digital interface buffers compatible with logic levels from 1.6V to 2.9V.

3. TECHNICAL BRIEF

- 22 -

Figure 3.2 AD6548 Block Diagram

Antenna Switch Module

PA Module

GSM1800/1900

GSM850/90

VCC_TXVCO

TX Loop

Filt

er

TXOP_HI

LNA Gain Reducti

TX_LO2

TX_LO1

on

Interf

Serial

VDD

/2

RX LO

Generator

TX LO

Generator

ace

Control

Band

VBAT

TXOP_L

O

0

VCC_FE

RX850

RX850B

RX900

RX900B

RX1800

RX1800B

RX1900

RX1900B

SDATA

SCLK

SEN

PFD

TX_LO

1

Frac-N Synth

TX circuits

supply

LDO

Reg 3

VLDO1 VLDO2

DC Offset Correction

LO VCO

Suppl

y

LDO

Reg 2

AD6548

General

Suppl

LDO

Reg 1

VLDO

TX_LO

y

3

/4

Ref

2

VCTCXO

Supply

I

IB

VCC_BBI

VCC_

Q

QB

VAFC

REFIN

REF_OP

VCC_REF

TXIB

TXI

RXI

RXIB

TXQ

BBQ

TXQB

RXQ

RXQB

AFC

B

CLK

REF_OP

- 23 -

3. TECHNICAL BRIEF

LGE Internal Use Only

Notes:

1. Supply regulated by internal LDO3 and should not be connected to any other supply

2. Internally connected as Synth supply (Counters + SDM + Charge pump)

3. Supply regulated by internal LDO2 and should not be connected to any other supply

AD6548/9 Pin Descriptions

No Name Description No Name Description

1 VCC_FE Front end supply (IP) 17 VCC_REF Reference Oscillator Supply (IP)

2I I baseband input/output 18

VAFC/ AD6548 Crystal Freq control (IP)

N/C AD6549: Spare Pin

3IBI baseband input/output 19 REFIN Crystal Connection

4 VCC_BBI Baseband I, TX path supply (IP) 20 REFINB Crystal Connection

5 SDATA Serial port data 21 REF_OP Reference Frequency Output

6 SCLK Serial port clock 22 QB Q baseband input/output

7 SEN Serial port enable 23 Q Q baseband input/output

8 N/C Not connected 24 VCC_BBQ Baseband Q supply (IP)

9 VLDO3 TX LDO Output (1) 25 RX1900B PCS 1900 LNA input

10 TXOP_LO Transmit O/P (850/900MHz) 26 RX1900 PCS 1900 LNA input

11 TXOP_HI Transmit O/P (1800/1900MHz) 27 RX1800B DCS 1800 LNA input

12 VCC_TXVCO TX VCO supply (1) 28 RX1800 DCS 1800 LNA input

13 VDD Serial interface supply 29 RX900B E-GSM LNA input

14 VBAT Battery I/P for LDO reg’s 30 RX900 E-GSM LNA input

15 VLDO1 LDO regulator Output (2) 31 RX850B GSM 850 LNA input

16 VLDO2 LO VCO Supply (3) 32 RX850 GSM 850 LNA input

GOMPLIANT TO JEDEC STANDARDS MO-220-VHHD-2

LGE Internal Use Only

Only for training and service purposes

3.3 26 MHz Clock (Crystal, X401)

The 26 MHz clock (X401) consists of a XO (Crystal Oscillator) which oscillates at a frequency of 26 MHz. The AD6548 requires only an external low cost crystal as the frequency reference. The circuitry to oscillate the crystal and tune its frequency is fully integrated. The Oscillator is a balanced implementation requiring the crystal to be connected across 2 pins. There is a programmable capacitor array included for coarse tuning of fixed offsets (e.g. crystal manufacturing tolerance), and an integrated varactor for dynamic control. The oscillator is designed for use with a 26MHz crystal. Dedicated control software ensures excellent frequency stability under all circumstances.

3. TECHNICAL BRIEF

- 24 -

Figure 3.3 CRYSTAL CIRCUIT DIAGRAM

- 25 -

3. TECHNICAL BRIEF

LGE Internal Use Only

3.4 Baseband Processor (AD6721, U102)

AD6721 is an ADI designed processor

AD6721 consists of

1. Control Processor Subsystem including: 32-bit MCU ARM7TDMI® Control Processor 65 MHz operation at 1.8V 2Mb of on-chip System SRAM Memory

2.DSP Subsystem including: 16-bit Fixed Point DSP Processor 91 MIPS[1] at 1.8V Data and Program SRAM Program Instruction Cache Full Rate, Enhanced Full Rate and Half Rate Speech Encoding/Decoding Capable of Supporting AMR & PDC Speech Algorithms

3.Peripheral Functions Parallel and Serial Display Interface USB 2.0 Full Speed device Interface Keypad Interface Flash Memory Interface Page-Mode Flash Support

1.8V and 3.0V, 64 kbps SIM Interface Universal System Connector Interface Data Services Interface Battery Interface (e.g. Dallas)

4. Other Supports 13 MHz and 26 MHz Input Clocks

1.8V Typical Core Operating Voltages 361-Ball Package (13x13mm) , 0.65mm Ball pitch

5. The AD6721 baseband transmit section supports the following

mobile station GMSK modulation power classes:

GSM 900/850 power classes 4 and 5, DCS 1800 power classes 1 and 2, and PCS 1900 power classes 1 and 2

- 26 -

3. TECHNICAL BRIEF

LGE Internal Use Only

Only for training and service purposes

Figure 3.4 SYSTEM INTERCONECTION OF AD6721 EXTERNAL INTERFACE

- 27 -

3. TECHNICAL BRIEF

LGE Internal Use Only

3.4.1 Interconnection with external devices

A. RTC block interface

Countered by external X-TAL The X-TAL oscillates 32.768KHz

B. LCD module interface

The LCD module is controlled by Camera backend IC AIT701G If AIT701G is in the state of by-pass mode, the LCD control signals from AD6721 are by-passed through AIT701G. In operating mode, the AIT701G controls the LCD module through L_MAIN_LCD_CS, L_SUB_LCD_CS, LCD_RESET, LCD_RS, LCD_WR, L_DATA[15-00], 2V8_MV, LCD_IF, LCD_ID.

Signals Description

L_MAIN_LCD_CS MAIN LCD driver chip enable. MAIN LCD driver IC has own CS pin

pinL_SUB_LCD_CS SUB LCD driver chip enable. SUB LCD driver IC has own CS pin

LCD_ID Select LCD module maker

LCD_RESET This pin resets LCD module. This signal comes from AD6721 directly.

LCD_WR Enable writing to LCD Driver.

LCD_RD Enable reading to LCD Driver.

LCD_RS

This pin determines whether the data to LCD module are display data or control data. LCD_RS can select 16 bit parallel bus.

2V8_CAM 2.8V voltage is supplied to LCD driver IC.

IF_MODE

Select 16bits or 8bits interface mode for MAIN LCD. For the future

Table 3.4.B LCD CONTRON SIGNALS DISCRIPTION

- 28 -

3. TECHNICAL BRIEF

LGE Internal Use Only

Only for training and service purposes

The backlight of LCD module is controlled by AD6721 via AAT3155. The control signals related to Backlight LED are given bellow.

C. RF interface

The AD6721 control RF parts through PA_BAND, ANT_SW1, ANT_SW2, ANT_SW3 , CLKON , PA_EN, S_EN, S_DATA, S_CLK

Signals Description

MLED Current source for backlight LED

LCD_DIM_CTRL Control LCD backlight level in 16 steps

MLED[1:4] This pins are returned-paths for backlight LED current source (MLED)

Table 3.4.B2 DESCRIPTION OF LCD BACKLIGHT LED CONTROL

Signals Description

PA_BAND (GPO 17) PAM Band Select

ANT_SW1 (GPO 9)) Antenna switch Band Select

ANT_SW2 (GPO 10) Antenna switch Band Select

PA_EN (GPO 16) PAM Enable/Disable

S_EN (GPO 19) PLL Enable/Disable

S_DATA (GPO 20) Serial Data to PLL

S_CLK (GPO 21) Clock to PLL

Table 3.4.C RF CONTROL SIGNALS DESCRIPTION

- 29 -

3. TECHNICAL BRIEF

LGE Internal Use Only

D. SIM interface

The AD6721 provides SIM Interface Module. The AD6721 checks status periodically during established call mode whether SIM card is inserted or not, but it doesn't check during deep Sleep mode. In order to communicate with SIM card, 3 signals SIM_DATA, SIM_CLK, SIM_RST(GPIO_23) are required. The descriptions about the signals are given by bellow Table 3-4 in detail.

Signals Description

SIM_DATA

This pin receives and sends data to SIM card.

This model can support 3.0 volt and 1.8 volt interface SIM card.

SIM_CLK Clock 3.25MHz frequency.

SIM_RST

Reset SIM block

(GPIO_23)

Table 3.4.D SIM CONTROL SIGNALS DESCRIPTION

Figure 3.4.D2 SIM Interface of AD6721

SIM CONNECTOR

[Rev.C] Remove N.A. resistor (R246)

2V85_VSIM

R243

15K

0R249

C222

NA

C5 C6 C7 GND4

J200

GND1 GND2GND3

4 5 6

10

9

2V85_VSIM

1

C1

2

C2

3

C3

7 8

C223

C221

NA

220n

SIM_RST SIM_CLKSIM_DATA

C224

1000p

- 30 -

3. TECHNICAL BRIEF

LGE Internal Use Only

Only for training and service purposes

E. LDO Block

There are 9 LDOs in the AD6721.

- 1V8_VCORE: supplies Digital baseband Processor core and AD6721 digital core(1.8V, 80mA)

- 2V8_VMEM: supplies external memory and the interface to the external memory on the digital baseband processor (2.8V, 150mA)

- 2V8_VEXT: supplies Radio digital interface and high voltage interface (2.8V, 200mA)

- 2V85_VSIM: the SIM interface circuitry on the digital processor and SIM card (2.85V,1.8V, 20mA)

- 1V8_VRTC: supplies the Real-Time Clock module (1.8 V, 20 µA)

- 2V5_VMIC: supplies the microphone interface circuitry (2.5 V, 2 mA)

- 2V75_VVCXO: supplies the voltage controlled crystal oscillator (2.75 V, 10 mA)

- VUSB: supplies USB interface circuitry(3.2V, 20mA)

- VGP: supplies VDD_IO3 of MMP(3.2V, 40mA)

- 31 -

3. TECHNICAL BRIEF

LGE Internal Use Only

3.5 Display and Interface

Controlled by L_MAIN_LCD_CS, L_SUB_LCD_CS, LCD_RESET, LCD_RS, LCD_WR, LCD_RD,

LCD_IF, L_DATA[00:15] ports

• L_MAIN_LCD_CS: MAIN LCD driver chip enable. MAIN LCD driver IC has own CS pin

• LCD_RESET: This pin resets LCD module. This signal comes from AD6721 directly.

• LCD_RS: This pin determines whether the data to LCD module are display data or control data.

• LCD_WR: Write control Signal

• LCD_RD: Read control Signal. But this pin used only for debugging.

• L_DATA[00:15]: Parallel data lines.

• LCD_ID: LCD type selection signals

- LCD_ID: LCD maker(0V for LGIT, 2.8V for Sharp)

• For using 262K color, data buses should be 16 bits.

Properties Spec. Unit

Active Screen Size 33.8mm(W) x 46.24mm(H) mm

Color Depth 262K TFT colors

Resolution 128 X 160 dots

• Main LCD

Properties Spec. Unit

Active Screen Size 18.902mm(W) x 13.43mm(H) mm

Color Depth 65K CSTN colors

Resolution 96 x 64 dots

• Sub LCD

- 32 -

3. TECHNICAL BRIEF

LGE Internal Use Only

Only for training and service purposes

Figure 3.5 LCD INTERFACE CIRCUIT

L_SUB_LCD_CS_OUTL_SUB_LCD_CS

LCD_RS_OUTLCD_RS

1

INOUT_A1

INOUT_A2

INOUT_B1

INOUT_B2

9

LCD_WR_OUTLCD_WR

L_MAIN_LCD_CS_OUTL_MAIN_LCD_CS

4

2

3

5

G1

INOUT_A4

INOUT_A3

G2

INOUT_B3

INOUT_B4

8

7

6

L_DATAOUT03

L_DATAOUT02

L_DATAOUT01

L_DATAOUT00

9

8

7

INOUT_B4

INOUT_B1

INOUT_B2

INOUT_B3

10

INOUT_A1

INOUT_A2

INOUT_A3

INOUT_A4

1

2

3

FL300

L_DATA00

L_DATA01

L_DATA02

ICVE10184E150R101FR

L_DATA03

6

G2

10

G1

5

4

FL302

ICVE10184E150R101FR

L_DATAOUT04

L_DATAOUT06

L_DATAOUT07

L_DATAOUT05

9

6

INOUT_B1

INOUT_B28INOUT_B37INOUT_B4

INOUT_A1

INOUT_A2

INOUT_A3

INOUT_A4

1

2

3

4

L_DATA06

L_DATA07

L_DATA05

L_DATA04LCD_RESET

L_DATAOUT08

9

G2

INOUT_B1

10

G1

5

INOUT_A1

1

FL304

ICVE10184E150R101FR

L_DATA08

L_DATAOUT11

L_DATAOUT10

L_DATAOUT09

8

7

6

G2

INOUT_B2

INOUT_B3

INOUT_B4

G1

INOUT_A2

INOUT_A3

INOUT_A4

2

3

4

L_DATA09

L_DATA10

L_DATA11

L_DATAOUT14

L_DATAOUT13

L_DATAOUT12

FL306

9

8

ICVE10184E150R101FR

INOUT_B1

INOUT_B2

INOUT_B3

10

5

INOUT_A1

INOUT_A2

INOUT_A3

1

2

L_DATA12

L_DATA13

L_DATA14

C_PCLK_OUT

C_MCLK_IN

L_DATAOUT15

7

6

G2

INOUT_B4

10

G1

5

INOUT_A4

3

4

L_DATA15

FL308

ICVE10184E150R101FR

C310

33343536373839440414243444546

32

29330 31

NA

CAM_PWR_EN

R304

100K

NA

C309

1u

C308

1uC307

C306 1u

C305NA

47p C304

2V8_MV

1V8_CAM

100K

R300

CN300

L_DATAOUT00

L_DATAOUT02

L_DATAOUT03

LCD_ID

LCD_RD

IF_MODE

LCD_WR_OUT

L_MAIN_LCD_CS_OUT

L_DATAOUT13

LCD_RS_OUT

L_DATAOUT14

L_DATAOUT15

L_DATAOUT04

L_SUB_LCD_CS_OUT

L_DATAOUT01

C_CD04_OUT

C_CD01_OUT

C_CD03_OUT

C_CD00_OUT

C_CD02_OUT

NAR301

48

8

9

7

495505152535455565758

47

10111213141516

18

192202122232425262728

17

59660

1

27p

C300

C30347p

MLED

MLED1

MLED3

MLED4

MLED2

MOTOR

SPK_RCV_P

SPK_RCV_N

C_CD01

8

7

INOUT_B3

INOUT_A3

2

3

C_CD02

C_CD03

9

INOUT_B1

INOUT_B2

INOUT_A1

INOUT_A2

1

L_DATAOUT08

FL303

[Rev.C] Main FPCB pin Map is changed

MAIN 262K TFT(128*160)_SUB CSTN(96*64) LCD

FL301

6

ICVE10184E150R500FR

G2

INOUT_B4

10

G1

5

INOUT_A4

4

CAM FILTER

VSYNCOUT

L_DATAOUT10

L_DATAOUT12

L_DATAOUT11

L_DATAOUT09

C_CD04

C_CD05

C_CD06

C_CD07

9

8

7

6

ICVE10184E150R500FR

G2

INOUT_B1

INOUT_B2

INOUT_B3

INOUT_B4

10

G1

5

INOUT_A1

INOUT_A2

INOUT_A3

INOUT_A4

1

2

3

4

FL305

ICVE10184E150R500FR

L_DATAOUT05

L_DATAOUT07

L_DATAOUT06

C_MCLK

C_HS

C_VS

9

8

7

6

INOUT_B1

INOUT_B2

INOUT_B3

INOUT_A1

INOUT_A2

INOUT_A3

1

2

3

4

C_CD06_OUT

C_CD07_OUT

C_CD05_OUT

C_PCLK

C311

G2

INOUT_B4

G1

5

INOUT_A4

2V8_MV

C_HS_OUT

C_VS_OUT

NA

10

C_SDA_IN

C_SCL_IN

4.7K

R303

4.7K

R302

C_RST

INOUT_B1

INOUT_A1

9

INOUT_B2

INOUT_A2

1

8

7

INOUT_B3

INOUT_A3

2

3

6

INOUT_B4

INOUT_A4

4

G2

10

G1

5

2V8_MV

C_HS_OUT

C_VS_OUT

C_CD02_OUT

C_CD03_OUT

C_CD01_OUT

C_CD04_OUT

C_CD05_OUT

C_CD06_OUT

C_CD07_OUT

C_MCLK_IN

C_PCLK_OUT

C_SDA_IN C_SDA

C_SCL_IN C_SCK

C_CD00_OUT C_CD00

FL307

ICVE10184E150R500FR

- 33 -

3. TECHNICAL BRIEF

LGE Internal Use Only

3.6 Camera Interface(AIT701G, U300)

This model has a built-in VGA(640 x 320) camera module. And the camera produces JPG pictures. Camera module is controlled by AIT701G. Interface is done by I2C and YCbCr format. I2C is a control signal and YCbCr is real data interface signal.

Figure 3.6.2 SENSOR CHIP BLOCK DIAGRAM

Figure 3.6.1 AIT701G BLOCK DIAGRAM

LCD

Interface

16-bit Host Interface

2D Graphic

Engine

Embedded Memory

Data

Formatter

Program

Memory

Micro-

Controller

(Frame/Display Buffers)

JPEG/

Video

Scalar

Engine

Image Buffer

PLL

GPIOs

LCD2

Interface

LCD1

Interface

sensor

Interface

AIT701G EUSY0318501

- 34 -

3. TECHNICAL BRIEF

LGE Internal Use Only

Only for training and service purposes

Figure 3.6.3 AIT701G CIRCUIT

C_RST

_WAIT

13M_AIT

2V8_MV

C316

1u

DATA00 DATA01 DATA02 DATA03 DATA04 DATA05 DATA06 DATA07 DATA08 DATA09 DATA10 DATA11 DATA12 DATA13 DATA14 DATA15

MULTI_BYPASS

_MAIN_CS

_RD

_WR

ADD01

CAM_INT

_MULTI_RST

_SUB_CS

R307

1V8_VCAM

C301

0.01u

BYPASS

R305 0

1000pC312

AIT701GU300

PGPIO0 PGPIO1

H5

VDD_CORE

H6

GND_CORE

D3

PSCAN_EN

E10

PTEST_EN

J3

PHD0

H3

PHD1

K4

PHD2

J4

PHD3

K5

PHD4

J5

PHD5

K6

PHD6

J6

PHD7

K10

PHD8

J9

PHD9

H10

PHD10

H9

PHD11

G10

PHD12

G9

PHD13

G8

PHD14

F10

PHD15

K7

PHLCD_BY

K1

PHCS_

J1

PHRD_

K2

PHWE_

J7

PHLCD_A0

J8

PHINT

K3

PRST_

K8

PHLCD2_CS_

J10

PHGPIO_CS_

F2

PS_RST_

K9

PHWAIT_

J2

PMCLK PPXL_CLK

G3 H8

VDD_IO0

H4

GND_IO0 GND_IO1

PGPIO2 PGPIO3 PGPIO4 PGPIO5 PGPIO6 PGPIO7

PLCD0 PLCD1 PLCD2 PLCD3 PLCD4 PLCD5 PLCD6 PLCD7 PLCD8

PLCD9 PLCD10 PLCD11 PLCD12 PLCD13 PLCD14 PLCD15 PLCD16 PLCD17

GND_IO2

VDD_IO2 PLCD2_CS_ PLCD1_CS_

PLCD_RD_

PLCD_A0

PLCD_WE_

PHSYNC PVSYNC

PD0 PD1 PD2 PD3 PD4 PD5 PD6 PD7

PSEN PSDA PSCK

PDCLK

VDD_IO1

E9 D9 C10 B9 A7 B7 F9 D10

A10 B10 A9 C9 D8 A8 B8 C8 C7 C6 B6 C5 B5 A6 C4 A5 B4 C3

F8 E8 A2 B2 A3 B3 A4

E3 G1 E2 E1 D1 D2 C2 C1 A1 B1

H1 H2 G2 F3 F1

H7

VSYNCOUT

L_DATA00 L_DATA01 L_DATA02 L_DATA03 L_DATA04 L_DATA05 L_DATA06 L_DATA07 L_DATA08 L_DATA09 L_DATA10 L_DATA11 L_DATA12 L_DATA13 L_DATA14 L_DATA15

L_SUB_LCD_CS L_MAIN_LCD_CS LCD_RD LCD_RS LCD_WR

C_HS C_VS C_CD00 C_CD01 C_CD02 C_CD03 C_CD04 C_CD05 C_CD06 C_CD07

CAM_PWR_EN C_SDA C_SCK C_MCLK C_PCLK

2V8_MV

C302

1u

2V8_MV100K

C317

1u

- 35 -

3. TECHNICAL BRIEF

LGE Internal Use Only

3.7 Keypad Switches and Scanning

The key switches are metal domes, which make contact between two concentric pads on the keypad layer of the PCB when pressed. There are 27 switches (Normal Key 23EA, Volume up down and camera side key, PWR down side key), connected in a matrix of 6 rows by 5 columns, as shown in Figure 3-7, except for the power switch (END), which is connected independently. Functions, the row and column lines of the keypad are connected to ports of AD6721. The columns are outputs, while the rows are inputs and have pull-up resistors built in. When a key is pressed, the corresponding row and column are connected together, causing the row input to go low and generate an interrupt. The columns/rows are then scanned by AD6721 to identify the pressed key.

Figure 3.7 Keypad Switches and Scanning

POWERKEY

KEY_ROW0

KEY_ROW1

KEY_ROW2

KEY_ROW3

KEY_ROW4

KEY_ROW5

KEY_COL0

KEY_COL1

KEY_COL2

KEY_COL3

KEY_COL4

R200 680

R205 680

R225 680

R229

R232 680

R237 680

R238

R240 680

END

PWR

680R233

680

CN200

SW200

680R221

SW203

680R223

SW206

SW209

680R226

T

680

CAM

1 2 3 4

680R203

1

SW201

4

SW204

7

SW207

*

SW210

680R204

VA206 varistor

2

5

8

0

varistor

VA207

SW202

SW205

SW208

SHARP

varistor

VA200

3

6

9

#

CLR

LEFT MENU

LEFT

UP

RIGHT

DOWN

FAV

MENU

SEL

SEND

CONF

FAV

SEL

SEND

CONF

T

- 36 -

3. TECHNICAL BRIEF

3.8 Microphone

The microphone is placed to the Front cover and contacted to main PCB. The audio signal is passed to MIC_N and MIC_P pins of AD6721.

The voltage supply VMIC is output from AD6721, and is a biased voltage for the MIC_P. The MIC_P and MIC_N signals are then A/D converted by the voice band ADC part of AD6721.

The digitized speech (PCM 8KHz ,16KHz) is then passed to the DSP section of AD6721 for processing (coding, interleaving etc).

LGE Internal Use Only

Only for training and service purposes

Figure 3.8 Connection between Microphone and AD6721

[Rev.C] Exchange Mic. Polarity

VINNORP

VINNORN

2V5_VMIC

R227

1K

C231

39p

100ohmR231

R235

100ohm

R230

2.2K

C232

0.1u

R239

2.2K

C212 39p

39pC214

C211

10u

C213

39p

C215 39p

VA204

EVL5M02200

VA205

EVL5M02200

MIC200

1 2

OB4-15L42-C33L

- 37 -

3. TECHNICAL BRIEF

LGE Internal Use Only

3.9 Main Speaker

Figure 3.9 Connection between Speaker, Amp and AD6721

L14

VAPPCFG

U12

VMEMSEL

T11

VRTCSEL

T13

PMTSEL

E19

PA

K18

AFCDAC

G19

QP

F19

QN

H18

IP

J18

IN

U18

AIN1P

U17

AIN1N

V18

AIN2P

V19

AIN2N

W18

ACCDETECT

U16

JACKSENSE

M15

AIN3L

N14

AIN3R

C148 0.1u

AOUT2P1 AOUT2P2 AOUT2N1 AOUT2N2

NC6

W1

AOUT1P AOUT1N

AOUT3L AOUT3R

M16 N17 N16 T14 U14 T15 U15 M17 N15

C152 39p

AIN3COMMON

NC4

NC5

V2

C153 39p

QP QN IP IN

ACC_DET

AUXOP_L AUXOP_R

C149

NA

C138

47p

C150

VINNORP

AFC

C154 47p

C145

C146

NA

R114

SPK_RCV_P

8.2

R115

SPK_RCV_N

8.2

C151

39p

SPK_P_ABB SPK_N_ABB

C142

AUXIN

AUXIP

C143 NANA

VINNORNTX_RAMP

AUDIO POWER AMP

[Rev. C] Change AMP Type (QFN -> BGA)

[Rev.C] Remove 0 Ohm pad between SPK & RCV outputs

C203

SPK_P_ABB

SPK_N_ABB

0.47u

C204 0.47u

R220 0

R222 100K

R218 10K

10KR219

C200 4.7n

R201 39K

U200 TPA6205A1ZQVR

C3

IN-

C2

IN+

B1

C1

BYPASS

C205

220n

C206 4.7n

VBAT

VDD

VO+

VO-_SHUTDOWN

GND

C201

2.2u

A3

B3

A1

B2

C202

0.1u

SPK_RCV_P

SPK_RCV_NAMP_SHDN

39KR224

3.10 Headset Interface

This phone has 6 electrodes such as GND, AUXIP, AUXIN, AUXOP_L,AUXOP_R, JACK_SENSE ACC_DETECT.

Switching from Receiver to Headset Jack

If jack is inserted, JACK_SENSE goes from high to low. Audio path is switched from receiver to earphone by JACK_SENSE interrupt.

Switching from Headset Jack to Receiver

If jack is removed, JACK_SENSE goes from low to high. Audio path is switched from earphone to receiver by JACK_DETECT interrupt.

Hook detection

If hook-button is pressed, ACC_DET is changed from high to low. This is detected by ACC_DETECT of AD6721 And then hook is detected.

- 38 -

3. TECHNICAL BRIEF

LGE Internal Use Only

Only for training and service purposes

Figure 3.10 HEADSET JACK INTERFACE

A

AUXIN

AUXIP

CC_DET

C371 0.1u

0.1uC372

C327 27p

C328 27p

20 R325

C336 100p

JACK_DETECT

2V5_VMIC

R316

1.5K

R322

2.2K

C329 10u

HS_OUT_L

HS_OUT_R

RPWRON

DSR

USC2 USC1

HS_MIC

2V8_VEXT

L300 100nH

R310

20

C360

100p

C332

18p

100nHL301

100KR314

C333 18p

100KR315

100KR312

HS_MIC

IO_P6 IO_P7

R318

47

C349 47p

VBAT

C334

1u

CN302

21

19 1 2 3 4 5 6 7 8 9

10 11 12 13 14 15 16 17 18

20

22

2 : AUDIO

4 : EAR_L 5 : EAR_R

6 : USB D+ 7 : USB D8 : JACK_D

9,10 : BATT

11 : R/ON

12,13 : CHG

14 : DSR

15 : VUSB 16,17 : UART

C350

47p

1u

C315

VCH

C330

4.7u

USB_VBUS

HSEJ-18S04-25R

LGE Internal Use Only

3. TECHNICAL BRIEF

- 39 -

3.11 Key Back-light Illumination

In key back-light illumination, there are 12 Blue LEDs in Main Board, which are driven by KEY_BACKLIGHT1 and 3 signal from AD6721.

Figure 3.11 KEY BACK-LIGHT ILLUMINTION

VBAT

KEY BACKLIGHT

R206

R207

47

LD200 LD201

VA201

R208

47

LD202

R209

47

KEY_BACKLIGHT

R211

R210

LD204 LD207

47

LD205

VA202

VA203

EVL5M02200

LD206 LD211LD210LD203

R212

47

R21347R214

LD208

47

LD209

R215

47

R216

R217

47

LGE Internal Use Only

Only for training and service purposes

3. TECHNICAL BRIEF

- 40 -

3.12 LCD Back-light Illumination

LCD backlight LEDs is controlled by AD6721 via AAT3155, U302.

Figure 3.12 MAIN LCD BACKLIGHT ILLUMINATION

VBAT

CHARGE PUMP

C320

MLED

LCD_DIM_CTRL

FB300

R323

1.5K

R326 100K

10u

C331 1u

U302 AAT3155ITP-T1

5

8

11

4

IN

OUTCP

EN_SET

GND

C1+

C1-

C2+

C2-

D1 D2 D3 D4

10

9 7

6 3 2 1 12

27p

C321

1u

C324

1u

27p

MLED1 MLED2 MLED3 MLED4

27p

C338

C337

C339

C340 27p

- 41 -

3. TECHNICAL BRIEF

LGE Internal Use Only

3.13 VIBRATOR

The vibrator is placed in the folder cover and contacted to LCD MODULE. The vibrator is driven from VIBRATOR (GPIO_3) of AD6721

Figure 3.13 Vibrator

VIBRATOR

VBAT

(1608)

MOTOR

R241

10

VIBRATOR

C218

4.7u

3

2

1

Q2_C

Q1_B

Q1_E

Q200

Q2_E

Q2_B

Q1_C

4

5

C217 27p

6

3.14 Battery Charging

The ISL6299 accepts two power inputs, normally one from a USB port and the other from a TA.

Charging Process

- Connecting TA & Charger Detection

- Control the charging Current by U203(Charger IC)

- Charging Current flows into the Battery.

Pins of U203 used for charging

- CRDL: Charger supply.

- USB: USB charging supply.

- IMIN: IMIN is the programmable input for the end-of-charge current.

- ICDL: Program the cradle charge current during the constantcurrent mode.

- _EN: Enable logic input

- BAT: Charger output pin.

TA (Travel Adaptor)

- Input voltage: AC 100V ~ 250V, 63Hz

- Output voltage: DC 5.1V

- Output current: Max 700mA

Battery

- Li-ion battery (Max 4.2V, Nom 3.7V)

- Standard battery: Capacity - 800mAh

- 42 -

3. TECHNICAL BRIEF

LGE Internal Use Only

Only for training and service purposes

Figure 3.14 CIRCUIT FOR BATTERY CHARGING

Charging current flow

External Charger

[Rev.C] Change External Charging IC (ISL6294 -> ISL6299)

USB_DET _CHG_EN

R253

100K

R254

USB_VBUS

R250

33K

R255

10K

VCHARGE

C226 1u

1

CRDL

2

USB

6

IMIN

9

ICDL

7

USBON

5

_EN

C227

1u

C442 47p

R252

100K

ISL6299U203

BAT

_PPR _CHG

GND

PGND

VBAT

10

3 4

8 11

C228

1u

- 43 -

4. TROUBLE SHOOTING

LGE Internal Use Only

4.1 RF Component

TEST POINT

Figure 4.1

U401 Tx Module (SKY77517)

U402 (AD6548) RF Main Chip (Transceiver)

X401 Crystal, 26MHz Clock

FL401 Rx SAW filter

U401

U402

FL401

X401

LGE Internal Use Only

Only for training and service purposes

- 44 -

4. TROUBLE SHOOTING

4.2 RX Trouble

CHECKING FLOW

START

HP8960 : Test mode

190 CH, 7 level setting (TCH)

190 CH, -60dBm setting (BCCH)

Spectrum analyzer setting

Oscilloscope se

tting

(1) Check

Crystal Circuit

(2) Check

Mobile SW &Rx Sa

(3) Check

RX I/Q Signa

Re-download SW or

Do calibration again

l

w

LGE Internal Use Only

4. TROUBLE SHOOTING

- 45 -

(1) Checking Crystal Circuit

TP1

X401

TP2

26 MHzO.K?

NoNo

Crystal Circuit is OK See next Page to check Mobile

SW

See next Page to check Mobile SW

Yes

Change X40

1

for DBB

C406

NA

C407

NA

1000pC401

26M

TEST POINT CHECKING FLOW

CIRCUIT

WAVEFORM

Graph 4.2.1(a)

Graph 4.2.1(b)

TP1

TP2

C419

0.1u

C427

VBAT

C428

0.1u0.1u

2V8_VMEM 2V75_VVCXO

LGE Internal Use Only

Only for training and service purposes

4. TROUBLE SHOOTING

- 46 -

(2) Checking Mobile SW & Rx SAW filter

TEST POINT

CIRCUIT

TP3

TP6

TP5

TP4

SW401

TP3

OUT402

OUT401

0

R401

R402

0

OUT403

C450

ANT

G1

RF

4.7p

SW401

RF500

G2

4.7nHL421

L422 4.7nH

PART_NO SMRH0004701

IN CASE OF GSM900/DCS1800

CHANGE THIS TXmodule

TO PART_NO SMRH0004501

1000pC418

C422

L401

NA

39nH

OUT404

L405

15nH

C404 27p

VBAT

C413 33p

C423 3p

C409 22u

3pC425

3pC426

3pC431

TP4TP5

C405 27p

L402

5.1nH

L403 18nH

R411

100ohmR406

100ohmR407

68R410

100ohm

PA_BAND

PA_EN

TX_RAMP

ANT_SW1

R412

24

R413

220

R417

30

R416 180

TP6

3

4

5

2

6

PCS_RX

7

GSM_RX

8

GND1

9

GND2

10

GND3

11

ANT

BS

TX_EN

VRAMP

U401

SKY77517

GND4

GND5

GND6

12

13

14

VLOGIC

GND7

1

VBATT

20

GND9

19

PCS_IN

18

NC

17

GSM_IN

16

GND8

PGND

15

21

FL401 B9310

1

I1

4

I2

G12G23G35G4

C410 12p

10

C402

39p

9

O1_1

8

O1_2

7

O2_1

6

O2_2

SFSB0001301

C411

0.01u

C403 68p

C412 18p

LGE Internal Use Only

4. TROUBLE SHOOTING

- 47 -

CHECKING FLOW

Table 4.2.2

MODE ANT_SW1 PA_EN PA_BAND

GSM850 RX H L L

PCS1900 RX H L H

GSM850 TX H H L

PCS1900 TX H H H

For these 2 test case,

No Call connection is needed

Check SW501 Pin ANT,RF

with RF Cable connected.

Check SW501 Pin ANT,RF

with No RF Cable Connected

Check C402,C404,C405

Check whether Ant SW

Set as RX mode

Refer to Table 4.2.2

Open

Yes

Short

Yes

Check Ant_SW1,

PA_EN, PA_BAND

Yes

Ant SW & Mobile SW is OK

See next Page to check

Rx I/Q Signal

No

Changing SW

Changing the Board.

401

For this RF Level test case,

RX Stand alone Mode is needed

refer to chapter

10

(3) Checking RX I/Q

LGE Internal Use Only

Only for training and service purposes

4. TROUBLE SHOOTING

- 48 -

TEST POINT

WAVEFORM

CIRCUIT

Graph 4.2.3

Figure 4.2.3

17

VCC_TXVCO

12

13

VDD

15

VLDO1

VLDO2

16

9

VLDO3

26

25

RX1900B

RX850

32

31

RX850B

RX900

30

29

RX900B

SCLK

6

5

SDATA7SEN

11

TXOP_HI

TXOP_LO

10

18

VAFC_NC

VBAT

14

VCC_BBI

4

24

VCC_BBQ

1

VCC_FE

VCC_REF

AD6548

U402

GND

33

I

2

3

IB

NC

8

Q

23

22QB20

REFIN

REFINB

19

REF_OP

21

RX1800

28

27

RX1800B

RX1900

33pC414

C417

0.1u

C435 100p

100p

C416

10pC408

180

R418

R414

220

IN

QN

QP

IP

CHECKING FLOW

TP7

TP8

TP7

Check TP7,8.

Check if there is any

Major difference

Refer to graph 4.

2.3

No

Similar?

Yes

Redownload software and calibration again

Replace U40

2

LGE Internal Use Only

4. TROUBLE SHOOTING

- 49 -

4.3 TX Trouble

CHECKING FLOW

START

HP8960 : Test mode

190 CH, 7 level setting (TCH)

190 CH, -60dBm setting (BCCH)

Spectrum analyzer setting

Oscilloscope se

tting

(1)Check

Crystal Circuit

(2)Check

Mobile SW & FEM(TP14)

(3)Check

PAM control

Signal(TP11,12,13,15,16

(4)Check

TX I/Q Signal(TP17,18)

)

Redownload SW or

Do calibration again

(1) Checking Crystal Circuit

- 50 -

LGE Internal Use Only

Only for training and service purposes

X401

TP9

TP10

26 MHzO.K?

NoNo

Crystal Circuit is OK See next Page to check Mobile

SW

See next Page to check Mobile SW

Yes

Change X40

1

for DBB

C406

NA

C407

NA

1000pC401

26M

TEST POINT CHECKING FLOW

CIRCUIT

WAVEFORM

Graph 4.3.1(a)

Graph 4.3.1(b)

TP9

TP10

C419

0.1u

C427

VBAT

C428

0.1u0.1u

2V8_VMEM 2V75_VVCXO

- 51 -

LGE Internal Use Only

(2) Checking Mobile SW & FEM

TEST POINT

CIRCUIT

TP11

TP14

TP13

TP12

SW401

TP11

OUT401

0

R401

OUT402

R402

OUT403

0

C450

ANT

G1

RF

4.7nHL421

4.7p

L422 4.7nH

SW401

RF500

G2

IN CASE OF GSM900/DCS1800

1000pC418

L401 39nH

OUT404

L405

15nH

PART_NO SMRH0004701

CHANGE THIS TXmodule

TO PART_NO SMRH0004501

6

PCS_RX

7

GSM_RX

8

GND1

9

GND2

10

GND3

11

ANT

C422 NA

4

5

BS

TX_EN

VRAMP

U401

SKY77517

GND4

GND5

GND6

12

13

3

VLOGIC

GND7

14

TP12TP13TP14

2

1

VBATT

20

GND9

19

PCS_IN

18

NC

17

GSM_IN

16

GND8

PGND

15

21

FL401 B9310

1

I1

4

I2

G12G23G35G4

C410 12p

10

C402

39p

9

O1_1

8

O1_2

7

O2_1

6

O2_2

SFSB0001301

C411

0.01u

C403 68p

C412 18p

C404 27p

VBAT

C413 33p

C423 3p

C409 22u

3pC425

3pC426

3pC431

C405

27p

L402

5.1nH

L403 18nH

R411

100ohmR406

100ohmR407

68R410

100ohm

PA_BAND

PA_EN

TX_RAMP

ANT_SW1

R412

24

R413

220

R417

30

R416 180

LGE Internal Use Only

Only for training and service purposes

4. TROUBLE SHOOTING

- 52 -

CHECKING FLOW

Table 4.3.2

MODE ANT_SW1 PA_EN PA_BAND

GSM850 RX H L L

PCS1900 RX H L H

GSM850 TX H H L

PCS1900 TX H H H

For these 2 test case,

No Call connection is needed

Check SW501 Pin ANT,RF

with RF Cable connected.

Check SW501 Pin ANT,RF

with No RF Cable Connected

Check C402,C404,C405

Check whether Ant SW

Set as RX mode

Refer to Table 4.2.2

Open

Yes

Short

Yes

Check Ant_SW1,

PA_EN, PA_BAND

Yes

Ant SW & Mobile SW is OK

See next Page to check

Rx I/Q Signal

No

Changing SW

Changing the Board.

401

For this RF Level test case,

RX Stand alone Mode is needed

refer to chapter

10

LGE Internal Use Only

4. TROUBLE SHOOTING

- 53 -

(3) Checking PAM Control Signal

Similar?

Yes

No

Check TP15,16

Any Major Difference or not

¨

Similar?

Yes

No

Go to Next Step

Similar?

Yes

No

Re-download S/W

Check if there is

Any Major Difference or not

¨

Refer to Graph 4.3.3

U401

TP15

TP16

68p

C403

68R410

100ohmR406

C404 27p 27p

100ohmR407

C405

39p

C402

100ohmR411

PA_BAND

TX_RAMP

PA_EN

ANT_SW1

TEST POINT

CHECKING FLOW

WAVEFORM

CIRCUIT

Graph 4.3.3

Figure 4.3.3

TP16

TP15

LGE Internal Use Only

Only for training and service purposes

4. TROUBLE SHOOTING

- 54 -

(4) Checking TX I/Q

Re-download the Software And calibrate

Check if there is

Any

Major Difference

¨

Refer to Graph4.3.4

Similar?

Yes

No

Replace U50

3

TP17

TP18

TEST POINT

WAVEFORM

CIRCUIT

Graph 4.3.4

Figure 4.3.4

CHECKING FLOW

TP18

TP17

R414

220

R418 180

25

RX1900B

26

RX1900

27

RX1800B

28

RX1800

29

RX900B

30

RX900

31

RX850B

32

RX850

33

GND

C417

0.1u

10pC408

33pC414

C416 100p

17

18

24

23

22QB20

19

21

Q

REFIN

REFINB

REF_OP

VCC_REF

VAFC_NC

VCC_BBQ

U402 AD6548

VCC_TXVCO

TXOP_HI

TXOP_LO

SCLK

SDATA7SEN

VCC_BBI

I

IB

1

VCC_FE

2

NC

6

5

4

3

8

C435 100p

VLDO2 VLDO1

VBAT

VLDO3

QP

QN

16 15 14 13

VDD

12 11 10 9

IP

IN

LGE Internal Use Only

4. TROUBLE SHOOTING

- 55 -

4.4 Power On Trouble

TEST POINT

CIRCUIT

TP10

TP5

TP6

TP7

TP4

TP8

TP3

TP9

TP1

TP2

1V8_VCORE

TP1

TP10

1V8_VRTC

TP2

2V8_VEXT

TP3

2V85_VSIM

TP4

2V8_VME

TP9

2V75_VVC

TP8

2V5_VMIC

TP7

VUSB

TP6

1V8_VCAM

TP5

M

XO

U7 V7 V5 V6 J10 K10 J8 K9 J9 V8 W8 W13 V12 V11 W11 M19 V14 W15 U19 T19 W14 N18 P18 N19 V17 L14 U12 T11

RPWRON

CLKOUT

MCLK

PWRON

ABB_IGQ_GPIO_48

DBBON

INT

RESET RESET2P8 RESET1P8

VCORE

VCOREOUT

VMEMFB

VMEMOUT

VEXT_REG1 VEXT_REG2

VRF

VSIM_A

VRTC

VMIC

VUSB_A

VGP

VABB_LDO

VAPP

VAPPGATE

PWREN VAPPCFG VMEMSEL

VRTCSEL

1

2

KDR331V

R107 3300

2.2uC124

D100

1V8_CAM

C125 1u

3

100KR104

_RESET

2V5_VMICVUSB

C126 1u

C127

1u

2V85_VSIM

C128

1u

2V75_VVCXO

C129

1u

C130

27p

2V8_VEXT

C131

1u

2V8_VMEM

1V8_VCORE 1V8_VRTC

C132

1u

C133

1u

C134

0.1u

LGE Internal Use Only

Only for training and service purposes

4. TROUBLE SHOOTING

- 56 -

CHECKING FLOW

START

Check Battery Voltage

> 3.35V

YES

Push power-on key

And check the level change

into low of POWERKEY

YES

Check the voltage of

The LDO outputs at U

YES

Logic level at RPWRON of U102

= HIGH(above 1.2V)

YES

102

1V8_VCORE=1.8V VVCXO=2.75V 2V8_VMEM=2.8V 2V85_ VSIM= 2.85V 2V8_VEXT=2.8V 1V8_VRTC=1.8V 2V5_VMIC=2.5V

NO

Charge or Change Battery

Check the contact of power key

Or dome-switc

Re-download software

Replace U102

h

Is the phone power on?

YES

The phone will

Properly operati

ng.

NO

Replace U100 and Re-download software

Does it work properly?

NO

Replace the main board

- 57 -

4. TROUBLE SHOOTING

LGE Internal Use Only

4.5 Charging Trouble

TEST POINT

_

CIRCUIT

Figure 4.5

TP1

TP2

CN302

U203

USB_DET

CHG_EN

R253

100K

USB_VBUS

R254

33K

R250

R255

10K

C226

10K

1u

VCHARGE

C227

1u

C442 47p

R252

100K

1

2

6

9

7 5

CRDL

USB

IMIN

ICDL

USBON _EN

ISL6299U203

BAT

_PPR

_CHG

GND

PGND

TP2

TP1

VBAT

10

3 4

8 11

C228

1u

LGE Internal Use Only

Only for training and service purposes

4. TROUBLE SHOOTING

- 58 -

CHECKING FLOW

START

Change the battery

Battery is charged?

NO

Is I/O Connector(CN302)

soldered ?

well-

YES

Voltage at anode of

C227 = 5.

Is Voltage across R253

Battery is charged?

LO

1V ?

YES

W?

YES

NO

Charging is

properly operati

Resolder the CN302

(Pin 12,13 : VCHARGE)

The TA is out of order

Change the TA

1) Download S/W again

2) Replace the U203

Replace the main board

ng

Charging is

properly operati

ng

LGE Internal Use Only

4. TROUBLE SHOOTING

- 59 -

4.6 Vibrator Trouble

Q200

C217

R241

TP1

TP2

TP3

TEST POINT

CIRCUIT

Figure 4.6

TP3

TP1

TP2

VIBRATOR

(1608)

R241

10

C218

4.7u

MOTOR

VIBRATOR

3

2

1

Q2_C

Q1_B

Q1_E

Q200

Q2_E

Q2_B

Q1_C

4

5

6

VBAT

C217 27p

- 60 -

4. TROUBLE SHOOTING

LGE Internal Use Only

Only for training and service purposes

CHECKING FLOW

SETTING : Enter the engineering mode, and set vibrator on at vibration of BB test menu

START

Is the voltage at pin 2

of Q200 high (0.66V)

YE

S

Is the voltage at pin 4

of Q200 equal to VB

YES

Is the voltage at C218

high (VBAT)

YES

Check the soldering

of vibrator

?

YES

?

AT?

NO

Check the U102 Output & solder

Check the soldering

If overall current is abnormal,

plre ace Main Boar

Check the soldering

of R241, Q200

Of Q200

d

Resolder or

Replace vibrat

ing

or

Replace vibrator

YES

Vibrator

Working well !

- 61 -

4. TROUBLE SHOOTING

LGE Internal Use Only

4.7 LCD Trouble

TEST POINT

Figure 4.7

U304

OK

TP1

FL306

FL304

FL302

FL300

CN300

FL308

LGE Internal Use Only

Only for training and service purposes

4. TROUBLE SHOOTING

- 62 -

CIRCUIT

TP1

MAIN 262K TFT(128*160)_SUB CSTN(96*64) LCD

[Rev.C] Main FPCB pin Map is changed

SPK_RCV_P

SPK_RCV_N

L_DATAOUT08 L_DATAOUT09 L_DATAOUT10 L_DATAOUT11 L_DATAOUT12

MOTOR

VSYNCOUT

MLED4 MLED3 MLED2 MLED1

MLED L_DATAOUT07 L_DATAOUT06 L_DATAOUT05

C_CD05_OUT C_CD06_OUT C_CD07_OUT

C_VS_OUT C_HS_OUT

C_SDA_IN C_SCL_IN

C_RST

27p

C300

C30347p

47p C304

1V8_CAM

C305NA

C306 1u

2V8_MV

1uC307

CN300 1 2 3 4 5 6 7 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32

2V8_MV

C308

2V8_MV

R300

1u

C309

NA

100K

R304 100K

NAR301

LCD_RD

LCD_ID IF_MODE LCD_RS_OUT L_MAIN_LCD_CS_OUT LCD_WR_OUT L_DATAOUT15 L_DATAOUT14 L_DATAOUT13

L_SUB_LCD_CS_OUT L_DATAOUT00 L_DATAOUT01 L_DATAOUT02 L_DATAOUT03

L_DATAOUT04 C_CD04_OUT C_CD03_OUT C_CD02_OUT C_CD01_OUT C_CD00_OUT

CAM_PWR_EN

C310 NA

C_PCLK_OUT

C_MCLK_IN

ICVE10184E150R101FR

FL300

L_DATA00 L_DATA01 L_DATA02 L_DATA03

ICVE10184E150R101FR

FL302

L_DATA07 L_DATA06 L_DATA05 L_DATA04LCD_RESET

ICVE10184E150R101FR

FL304

L_DATA08 L_DATA09 L_DATA10 L_DATA11

L_DATA12 L_DATA13 L_DATA14 L_DATA15

9

8

7

6

1

2

3

4

1

2

3

4

1

2

3

4

1

2

3

4

INOUT_B1

INOUT_B2

INOUT_B3

INOUT_B4

INOUT_A1

INOUT_A2

INOUT_A3

INOUT_A4

INOUT_A1

INOUT_A2

INOUT_A3

INOUT_A4

INOUT_A1

INOUT_A2

INOUT_A3

INOUT_A4

INOUT_A1

INOUT_A2

INOUT_A3

INOUT_A4

5

INOUT_A1

INOUT_A2

INOUT_A3

INOUT_A4

10

INOUT_B1

INOUT_B2

INOUT_B3

INOUT_B4

G110G2

INOUT_B1

INOUT_B2

INOUT_B3

INOUT_B4

G15G2

10

INOUT_B1

INOUT_B2

INOUT_B3

INOUT_B4

G110G2

INOUT_B1

INOUT_B2

INOUT_B3

INOUT_B4

G15G2

10

G15G2

L_SUB_LCD_CS_OUTL_SUB_LCD_CS

1

LCD_RS_OUTLCD_RS

2

L_MAIN_LCD_CS_OUTL_MAIN_LCD_CS

3

LCD_WR_OUTLCD_WR

4

L_DATAOUT00

9

L_DATAOUT01

8

L_DATAOUT02

7

L_DATAOUT03

6

L_DATAOUT07

9

L_DATAOUT06

8

L_DATAOUT05

7

L_DATAOUT04

6

L_DATAOUT08

9

L_DATAOUT09

8

L_DATAOUT10

7

L_DATAOUT11

6

ICVE10184E150R101FR

FL306

L_DATAOUT12

9

L_DATAOUT13

8

L_DATAOUT14

7

L_DATAOUT15

6

ICVE10184E150R101FR

FL308

100K

R330

2V8_MV

VBAT2V8_VEXT

U304

FB301

RT9011-MGPQW

C343 1u

1

VIN

2

EN1

3

EN2

4

NC1

VOUT1 VOUT2

PGND

9

NC2

GND

8 7 6 5

C344 1u

1V8_VCAM

0

C345 1u

LGE Internal Use Only

4. TROUBLE SHOOTING

- 63 -

CHECKING FLOW

START

Is the connection of

FPCB with connector on

PCB(CN300

YE

S

Is Voltage pin7 of U304 2.8V?

S

YE

Check the soldering of

S

YE

Change the FPCB and try again

YES

CN300

) ok ?

?

NO

Reassemble FPCB with CN300 connector

NO

Replace U304

NO

Resolder CN300

Check the soldering of

EMI filter ?

YES

Does LCD work

properly

?

YES

LCD working well !

NO

Resoldering EMI filter

(FL300,FL302,FL304,FL306,FL308)

Replace LCD module

LGE Internal Use Only

Only for training and service purposes

4. TROUBLE SHOOTING

- 64 -

4.8 Camera Trouble

)

TEST POINT

Figure 4.8

U304(LDO)

TP1

U300(AIT701

TP2

FL301

FL303

FL305

FL307

LGE Internal Use Only

4. TROUBLE SHOOTING

- 65 -

CIRCUIT

TP1

TP2

FL301

ICVE10184E150R500FR

10

G15G2

4

INOUT_A4

3

2V8_MV

R302

4.7K

R303

4.7K

2

1

4

3

2

1

2

3

4

1

2

3

4

INOUT_A3

INOUT_A2

INOUT_A1

INOUT_A4

INOUT_A3

INOUT_A2

INOUT_A1

INOUT_A2

INOUT_A3

INOUT_A4

INOUT_A1

INOUT_A2

INOUT_A3

INOUT_A4

C_CD01_OUT C_CD02_OUT C_CD03_OUT

C_CD04_OUT C_CD05_OUT C_CD06_OUT C_CD07_OUT

C_HS_OUT C_VS_OUT C_MCLK_IN

C_PCLK_OUT

2V8_MV

C_SCL_IN C_SCK C_SDA_IN C_SDA

C_CD00_OUT C_CD00

INOUT_B4

INOUT_B3

INOUT_B2

INOUT_B1

ICVE10184E150R500FR

5G110

G2

INOUT_B4

INOUT_B3

INOUT_B2

INOUT_B1

ICVE10184E150R500FR

INOUT_B1

INOUT_B2

INOUT_B3

INOUT_B4

G110G2

5

INOUT_B1

INOUT_B2

INOUT_B3

INOUT_B4

G110G2

5

ICVE10184E150R500FR

6

7

8

9

FL303

6

7

8

9

FL305

9

8

7

6

9

8

7

6

FL307

C_CD01 C_CD02 C_CD03

C_CD04 C_CD05 C_CD06 C_CD07

C311 NA

C_HS C_VS C_MCLK C_PCLK

SPK_RCV_P

SPK_RCV_N

L_DATAOUT08 L_DATAOUT09 L_DATAOUT10 L_DATAOUT11 L_DATAOUT12

MOTOR

VSYNCOUT

MLED4 MLED3 MLED2 MLED1

MLED L_DATAOUT07 L_DATAOUT06 L_DATAOUT05

C_CD05_OUT C_CD06_OUT C_CD07_OUT

C_VS_OUT C_HS_OUT

C_SDA_IN C_SCL_IN

C_RST

2V8_MV

1V8_CAM

2V8_MV

1uC307

CN300 1 2 3 4 5 6 7 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

27p

C300

C305NA

C30347p

47p C304

C306 1u

2V8_MV

100K

C308

1u

R300

C309

NAR301

LCD_RD

LCD_ID IF_MODE LCD_RS_OUT L_MAIN_LCD_CS_OUT LCD_WR_OUT L_DATAOUT15 L_DATAOUT14 L_DATAOUT13

LCD_RESET L_SUB_LCD_CS_OUT L_DATAOUT00 L_DATAOUT01 L_DATAOUT02 L_DATAOUT03

L_DATAOUT04 C_CD04_OUT C_CD03_OUT C_CD02_OUT C_CD01_OUT C_CD00_OUT

C_PCLK_OUT

CAM_PWR_EN

R304 100K

NA

C310 NA

C_MCLK_IN

60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32

C_RST

_WAIT

13M_AIT

2V8_MV

C316

1u

DATA00 DATA01 DATA02 DATA03 DATA04 DATA05 DATA06 DATA07 DATA08 DATA09 DATA10 DATA11 DATA12 DATA13 DATA14 DATA15

MULTI_BYPASS

_MAIN_CS

ADD01

CAM_INT

_MULTI_RST

R307

_RD

_WR

R305 0

_SUB_CS

1V8_VCAM

H5

C301

0.01u

VDD_CORE

H6

GND_CORE

D3

PSCAN_EN

E10

PTEST_EN

J3

PHD0

H3

PHD1

K4

PHD2

J4

PHD3

K5

PHD4

J5

PHD5

K6

PHD6

J6

PHD7

K10

PHD8

J9

PHD9

H10

PHD10

H9

PHD11

G10

PHD12

G9

PHD13

G8

PHD14

F10

PHD15

BYPASS

K7

PHLCD_BY

K1

PHCS_

J1

PHRD_

K2

PHWE_

J7

PHLCD_A0

J8

PHINT

K3

PRST_

K8

PHLCD2_CS_

J10

PHGPIO_CS_

F2

PS_RST_

K9

PHWAIT_

1000pC312

J2

PMCLK PPXL_CLK

G3 H8

VDD_IO0

H4

GND_IO0 GND_IO1

AIT701GU300

PGPIO0 PGPIO1 PGPIO2 PGPIO3 PGPIO4 PGPIO5 PGPIO6 PGPIO7

PLCD0 PLCD1 PLCD2 PLCD3 PLCD4 PLCD5 PLCD6 PLCD7 PLCD8

PLCD9 PLCD10 PLCD11 PLCD12 PLCD13 PLCD14 PLCD15 PLCD16 PLCD17

GND_IO2

VDD_IO2 PLCD2_CS_ PLCD1_CS_

PLCD_RD_

PLCD_A0

PLCD_WE_

PHSYNC

PVSYNC

PSEN PSDA PSCK

PDCLK

VDD_IO1

E9 D9 C10 B9 A7 B7 F9 D10

A10 B10 A9 C9 D8 A8 B8 C8 C7 C6 B6 C5 B5 A6 C4 A5 B4 C3

F8 E8 A2 B2 A3 B3 A4

E3 G1 E2

PD0

E1

PD1

D1

PD2

D2

PD3

C2

PD4

C1

PD5

A1

PD6

B1

PD7

H1 H2 G2 F3 F1

H7

VSYNCOUT

L_DATA00 L_DATA01 L_DATA02 L_DATA03 L_DATA04 L_DATA05 L_DATA06 L_DATA07 L_DATA08 L_DATA09 L_DATA10 L_DATA11 L_DATA12 L_DATA13 L_DATA14 L_DATA15

L_SUB_LCD_CS L_MAIN_LCD_CS LCD_RD LCD_RS LCD_WR

C_HS C_VS C_CD00 C_CD01 C_CD02 C_CD03 C_CD04 C_CD05 C_CD06 C_CD07

CAM_PWR_EN C_SDA C_SCK C_MCLK C_PCLK

2V8_MV100K

2V8_MV

C317

2V8_MV

VOUT2

NC2

GND

FB301

8 7 6 5

C344 1u

0

1V8_VCAM

C345 1u

VBAT2V8_VEXT

U304

RT9011-MGPQW

C343 1u

VIN1VOUT1

2

EN1

3

EN2

4

NC1

9

PGND

100K

R330

C302

1u

LGE Internal Use Only

Only for training and service purposes

4. TROUBLE SHOOTING

- 66 -

CHECKING FLOW

START

Does the LCD itself

Has no trouble

YE

S

Change the camera

module, Does it work

properly

YES

Itís camera moduleís problem

Replace the camera module

Check the signals of the

FL301,FL303,FL305,

YES

?

FL307

NO

Go to the LCD trouble

Check the

voltage

of pin 8 of

U304 is 2.8V ?

Voltage of pin 7

of U304 is

1.8V

S

YE

NO

FL301,FL303,FL305,

and

?

Replace

NO

Replace the U304

FL307

Camera will work properly

LGE Internal Use Only

4. TROUBLE SHOOTING

- 67 -

4.9 Speaker Trouble

TEST POINT

CIRCUIT

Figure 4.9

TP3

TP2

TP3

U102

ACCDETECT JACKSENSE

AIN3COMMON

AOUT1N AOUT2P1 AOUT2P2

AOUT2N1 AOUT2N2

AOUT3R

NC4

NC5

NC6

V2

W1

W18 U16 M15

AIN3L

N14

AIN3R

AOUT1P

AOUT3L

M16 N17 N16 T14 U14 T15 U15 M17 N15

C148 0.1u

TP2

C152 39p

C153 39p

ACC_DET

AUXOP_L AUXOP_R

C149

NA

C150

39p

R114

R115

C151 39p

SPK_P_ABB SPK_N_ABB

8.2

U200

TP1

SPK_RCV_P

SPK_RCV_N

VBAT

AUDIO POWER AMP

[Rev. C] Change AMP Type (QFN -> BGA) [Rev.C] Remove 0 Ohm pad between SPK & RCV outputs

C203

SPK_P_ABB

SPK_N_ABB

0.47u

C204 0.47u

R220 0

R222 100K

R218 10K

10KR219

C200 4.7n

R201 39K

U200 TPA6205A1ZQVR

C3

IN-

C2

IN+

B1

C1

BYPASSB2GND

C205

220n

C206 4.7n

C201

C202

2.2u

0.1u

A3

VDD

B3

VO+

A1

VO-_SHUTDOWN

39KR224

SPK_RCV_P

SPK_RCV_NAMP_SHDN

LGE Internal Use Only

Only for training and service purposes

4. TROUBLE SHOOTING

- 68 -

CHECKING FLOW

START

Check the state of contact of spea

Yes

Check the Audio signal

R218,R219

Yes

Check the Power voltage

U200 = VBAT

And work properly ?

Yes

Speaker

Working well!!

ker

No

Replace/Change speaker

Change the U102

Change the U403

LGE Internal Use Only

4. TROUBLE SHOOTING

- 69 -

4.10 SIM Card Interface Trouble

TEST POINT

CIRCUIT

N.A. resistor (R246)

2V85_VSIM

0R249

C224

1000p

2V85_VSIM

15K

R243

NA

C223

C222

NA

C221

220n

J200

1

C1

2

C2 C3

3

4

C5 C6

5

C7

6

GND1

7 8

GND2GND3

9

10

GND4

SIM_RST SIM_CLKSIM_DATA

Figure 4.10

TP1

TP2

TP1

J200

TP2

LGE Internal Use Only

Only for training and service purposes

4. TROUBLE SHOOTING

- 70 -

CHECKING FLOW

START

Does the SIM card

support 3V or 1.8V

YES

Is Voltage at the pin1, pin6

of J200 2.85V?

YES

Change the SIM Card

And try again.

Does it work

Properly?

S

YE

?

NO

This phone supports 3V or 1.8V SIM card

NO

Change the SIM Card.

Voltage output

of VSIM LDO

Is 2.85V?

(CHECK C221, R249)

YES

Resolder J200

Redownload SW.

Does it work

YES

Properly

?

NO

.

Change the U102

Change the main board

SIM card is properly working

SIM card is properly working.

LGE Internal Use Only

4. TROUBLE SHOOTING

- 71 -

4.11 Earphone Trouble

TEST POINT

A

Figure 4.11

CIRCUIT

TP4

TP1

TP2

TP4

AUXIN

AUXIP

CC_DET

HS_OUT_R

AUXOP_R

HS_OUT_EN

TP2

C371 0.1u

0.1uC372

C327 27p

2V8_VEXT

C318 100u

C351

1u

R316

1.5K

C329

C328

10u

27p

20 R325

C336

100p

U308 NLAS5223BMNR2G

1

VCC

2

NO1

3

COM1

4

IN1

5

NC1

2V5_VMIC

R322

2.2K

COM2

TP1

CN302

TP3

U308

IO_P6 IO_P7

R318

47

C349 47p

VBAT

C334

CN302

1u

21

2 : AUDIO

19

1

4 : EAR_L

2

5 : EAR_R

3 4

6 : USB D+

5

7 : USB D8 : JACK_D

6 7

9,10 : BATT

8

11 : R/ON

9

10

12,13 : CHG

11 12 13 14

14 : DSR

15 16

15 : VUSB

17

16,17 : UART

18

20 22

HSEJ-18S04-25R

C350

VCH

USB_VBUS

1u

47p

4.7u

C330

C315

2V8_VEXT

100KR312

100KR314

C332

18p

100KR315

HS_MIC

100nHL301

C333 18p

HS_MIC

RPWRON

DSR

USC2 USC1

L300 100nH

R310

20

C360

100p

HS_OUT_L

HS_OUT_R

JACK_DETECT

10

NO2

9

8

IN2

7

NC2

6

GND

C319100u

HS_OUT_L

AUXOP_L

HS_OUT_EN

LGE Internal Use Only

Only for training and service purposes

4. TROUBLE SHOOTING

- 72 -

CHECKING FLOW

START

Resolder J200

Check JACK_DETECT

pin(#8) in CN

YE

Is JACK_DETECT

YES

Set the audio part of the test

equipment to PRBS or

Continuous wave m

Can you hear the sound from the earphone?

YE

Set the audio part of the test

Equipment to echo m

Can you hear your

voice from

the earphone?

302

S

LOW?

ode

S

ode

NO

Change the earphone

and try again

NO

Change the earphone

and try again

Resolder JACK_DETECT pin

Resolder R310

Can you hear

the sound from

the earphone?

YE

S

Can you hear your

voice from

the ea

rphone?

NO

Resolder C318, C319, L301 & L300

OR Change the U308

NO

Resolder R317,R321, R316 & R322

Or Change the U102

Earphone will work properly

YES

LGE Internal Use Only

4. TROUBLE SHOOTING

- 73 -

4.12 KEY backlight Trouble

TEST POINT

Figure 4.12

TP1

LGE Internal Use Only

Only for training and service purposes

4. TROUBLE SHOOTING

- 74 -

CIRCUIT

CHECKING FLOW

TP1

KEY BACKLIGHT

VBAT

R206

R207

R208

47

LD200 LD201

47

LD202

R209

47

KEY_BACKLIGHT

R211

R210

LD204 LD207

47

LD205

START

Is the level Period at VA203

High Duty(30%)

?

VA201

VA202

VA203

EVL5M02200

NO

R212

LD206 LD211LD210LD203

Check U102

47

R21347R214

LD208

47

LD209

R215

47

R216

R217

47

YES

Is the level Period at VA203

Low Duty(70%)?

YES

Are all LEDs

Work

ing?

YES

Backlight will work properly.

NO

Check U102

Check the soldering

each R and LE

D

NO

Replace or resolder

com

ponent

LGE Internal Use Only

4. TROUBLE SHOOTING

- 75 -

4.13 Receiver Trouble

TEST POINT

Figure 4.13

TP1

U102

TP1

TP2

ACCDETECT JACKSENSE

AIN3COMMON

AOUT2P1 AOUT2P2 AOUT2N1 AOUT2N2

NC4

NC5

NC6

V2

W1

AIN3L

AIN3R

AOUT1P AOUT1N

AOUT3L

AOUT3R

W18 U16 M15 N14 M16 N17 N16 T14 U14 T15 U15 M17 N15

C148 0.1u

C153

C152

39p

ACC_DET

AUXOP_L AUXOP_R

C149

NA

C150

39p

R114

8.2

R115

8.2 C151 39p

SPK_P_ABB SPK_N_ABB

SPK_RCV_P

SPK_RCV_N

- 76 -

4. TROUBLE SHOOTING

LGE Internal Use Only

Only for training and service purposes

CHECKING FLOW

SETTING : After initialize Agilent 8960, Test GSM850, PCS mode

Set the property of audio as PRBS or continuous wave. Set the receiving volume of mobile as Max.

START

Does waveform at

R114 and R115

fluctuate

?

YES

Is receiver connected

Properly?

YE

S

Receiver will work properly.

NO

Change the U102

Resolder/Change the receiver

- 77 -

4. TROUBLE SHOOTING

LGE Internal Use Only

4.14 Microphone Trouble

TEST POINT

CIRCUIT

Figure 4.14

TP1

TP3

MIC200

TP2

TP1

[Rev.C] Exchange Mic. Polarity

VINNORP

VINNORN

C231

39p

TP3

100ohmR231

R235

100ohm

MIC200

2V5_VMIC

R227

1K

R230

2.2K

C232

0.1u

R239

C212 39p

39pC214

C211

10u

C213

39p

MIC200

1 2

OB4-15L42-C33L

2.2K

C215 39p

VA204

EVL5M02200

VA205

EVL5M02200

- 78 -

4. TROUBLE SHOOTING

LGE Internal Use Only

Only for training and service purposes

CHECKING FLOW

SETTING : After initialize Agilent 8960, Test GSM850, PCS mode

START

Check microphone sound hole

Make a phone call,

then check R227 mic bias signal

comes from U

YES

Check the signal

Level at each side

of MIC200.

Is it a few tens

YE

Check the soldering of

R231, R235 & R236

YES

Microphone will work

102?

mV AC?

S

properly.

NO

1. Check mic Bias signal line

2. Change the U102

Change the microphone

NO

Resolder component

- 79 -

4. TROUBLE SHOOTING

LGE Internal Use Only

4.15 RTC Trouble

TEST POINT

CIRCUIT

Figure 4.15

TP1

X100

TP1

MC-146_12_5PFX100

3

2

32.768KHz

C116

NA

4

1

R102

R103

NA

10M

C118 NA

- 80 -

4. TROUBLE SHOOTING

LGE Internal Use Only

Only for training and service purposes

CHECK FLOW

START

Is frequency

at R102 about 32.768KHz?

YES

Is voltage

at R102 about 400mV

YES

Is RTC properly working?

YES

RTC will work properly

?

NO

Resolder the X100 or

change the

Resolder the X100 or

change the X100

Re-download software and try

aga

X100

in

- 81 -

4. TROUBLE SHOOTING

LGE Internal Use Only

4.16 Folder on/off Trouble

TEST POINT

CIRCUIT

Figure 4.16

TP2

TP1

TP2

C207 27p

2V8_VMEM

C208 1u

U201

TP1

U201

EM-1681-FT

14

VDD

2

OUT

C209 1u

FLIP

C210 27p

VSS

NC

3

- 82 -

4. TROUBLE SHOOTING

LGE Internal Use Only

Only for training and service purposes

CHECKING FLOW

START

Is there the magnet

in the Folder?

YES

Voltage at pin 1 of U201 = 2.

YES

Open Folder.

Voltage at pin 2 of U201

YES

Close folder.

Voltage at pin 2 of U201

8V?

=2.8V

= 0V

NO

Place the magnet properly.

Voltage of VMEM at U102

= 2.8V?

YES

Resolder U201

Replace U201

NO

Replace U102

YES

Folder on/off will

work properly

- 83 -

4. TROUBLE SHOOTING

LGE Internal Use Only

4.17 Micro SD Trouble

TEST POINT

CIRCUIT

Figure 4.17

TP2

TP1

TP1TP2

U202

J201

T-FLASH

[Rev.C] Remove T-flash detect

T_DATA2 T_DATA3

T_CMD

T_Detect

R244

5.6K

R256 0

TFLASH_EN

R245

NA

R246

5.6K

R251 470K

VBAT

C219 1u

100K

R242

U202

BH28FB1WHFV

NC

STBY

BGND

GND

34

VIN

VOUT

(2.8V 150mA)

J201

1

DAT2

2

DAT3

3

CMD

4

VDD

9

GND1

10

GND2

DAT1 DAT0

VSS

CLK GND3 GND4

8 7 6 5 11 12

51 62

2V85_TF

R247

C220 1u

2V85_TF

R248

5.6K5.6K

C225

NA

T_DATA1 T_DATA0

T_CLK

- 84 -

4. TROUBLE SHOOTING

LGE Internal Use Only

Only for training and service purposes

CHECKING FLOW

START

Micro SD Detect

OK?

S

YE

Check out T_CLK & Data

Timing OK?

NO

Check 2V85_TF

.85V?

C220=2

YE

S

T_DATA3

Is High?

YES

Re-download SW

NO

Change U202

NO

Re-attach or

Replace J20

1

Replace Micro SD Card

Micro SD Card will

S

YE

YES

work properly

- 85 -

5. DOWNLOAD

LGE Internal Use Only

5.1 Download

A. Download Setup

Figure 5.1 describes Download setupp

Figure 5.1 Download Setup

LGE Internal Use Only

Only for training and service purposes

5. DOWNLOAD

- 86 -

B. Multi Download Procedure

1. Run GSM Multi Download program and select Setting

- 87 -

5. DOWNLOAD

LGE Internal Use Only

2. Select Configuration from the menu and you may see this window

3. Press key to select DLL file and press Open

LGE Internal Use Only

Only for training and service purposes

- 88 -

5. DOWNLOAD

4. Press key to select the mot files

5. Select AlchemyData.mot and press open

6. Repeat step 4-5 to select CodeData.mot

LGE Internal Use Only

- 89 -

5. DOWNLOAD

7. Check if the ADI option is set to Hermes

8. Press OK to end Configuration

Select Rate

LGE Internal Use Only

Only for training and service purposes

- 90 -

5. DOWNLOAD

9. Press START to execute download

10. Once downloading is started,

press STOP button to keep from re-downloading after downloading is completed.

LGE Internal Use Only

- 91 -

6. BLOCK DIAGRAM

Figure 6.1 LG-KP210a Block Diagram

LGE Internal Use Only

Only for training and service purposes

- 92 -

- 93 -

7. CIRCUIT DIAGRAM

LGE Internal Use Only

1234

1

GND

2

RX

3

TX

4

NC1

5 6

VBAT

7

NC2

8

NC3

9

NC4

10

DSR

11

RTS

12

CTS

MC-146_12_5PFX100

OJ101

OJ100

3

2

32.768KHz

VBAT

USC1 USC2

RPWRON

DSR USC5 USC4

C116

4

1

R103

ADD100

J11

ADDO_GPO_25

H10

ADD01 ADD02 ADD03 ADD04 ADD05 ADD06 ADD07 ADD08 ADD09 ADD10 ADD11 ADD12 ADD13 ADD14 ADD15 ADD16 ADD17 ADD18 ADD19 ADD20 ADD21 ADD22 ADD23

DATA00 DATA01 DATA02 DATA03 DATA04 DATA05 DATA06 DATA07 DATA08 DATA09 DATA10 DATA11 DATA12 DATA13 DATA14

DATA15 _ROM_CS1 _ROM_CS2

_RAM_CS1

_MAIN_CS

_SUB_CS

_RD

_WR _LBS _UBS

NA

BURSTCLK

_WAIT

ADV

_CHG_EN

VIBRATOR

CAM_INT

USB_DET

JACK_DETECT

13M_AIT

LCD_ID

CHG_DET

T_Detect

DEBUG_RX DEBUG_TX KEY_ROW5

HS_OUT_EN

MULTI_BYPASS

JTAGEN

USB_VBUS

VCHARGE

2.2u C135

C117

26M

FLIP

DSR

TCK

TMS TDI TDO1

KEY_BACKLIGHT

KEY_ROW1 POWERKEY

USC0 USC1 USC2 USC3 USC4 USC5 USC6

C139 22p

C140 C141 1u

R113

120K

10M

R102

C118

NA

2V8_VMEM

R106

10K

R110

10K

VBAT

C137 1u

BATT_TEMP

ADD1

G9

ADD2

G10

ADD3

F9

ADD4

G11

ADD5

F10

ADD6

H12

ADD7

H11

ADD8

F11

ADD9

G13

ADD10

G14

ADD11

G16

ADD12

F16

ADD13

F13

ADD14

G15

ADD15

F14

ADD16

F15

ADD17

E15

ADD18

F17

ADD19

E16

ADD20

E17

ADD21

D19

ADD22

D18

ADD23

C14

GPIO_40_ADD24

D15

DATA0

D17

DATA1

D16

DATA2

C19

DATA3

C18

DATA4

B19

DATA5

B18

DATA6

C17

DATA7

C16

DATA8

C15

DATA9

B14

DATA10

B15

DATA11

B17

DATA12

B16

DATA13

A14

DATA14

A15

DATA15

C11

ROMCS1

A10

GPIO_44_ROMCS2

RAM_CS

D11

RAMCS1

C10

RAMCS2

E9

AUXCS1

C8

GPIO_46_AUXCS2

D10

GPCS1

C9

GPIO_45_GPCS2

B10

MAIN_CS

GPIO_42_DISPLAY_CS1

D9

GPIO_43_DISPLAY_CS2

_RD

A16

RD

_WR

B12

WE

_LBS

A17

LWR_LB

_UBS

A18

HWR_UB

A11

BURSTCLK

A12

WAIT

B11

ADV

W4

OSCIN

W3

OSCOUT

1000p

B9

CLKIN

F2

GPIO_0

F1

GPIO_1

G4

GPIO_2

G3

GPIO_3

G2

GPIO_4

G1

GPIO_5

G5

GPIO_6

H4

GPIO_7

H3

GPIO_8

H1

GPIO_9

H2

GPIO_10

J1

GPIO_11

J2

GPIO_12

J3

GPIO_13_SRVLIGHT

K3

GPIO_16

P4

GPIO_22

D6

GPIO_24_ALRTLIGHT

K1

GPIO_33

L1

GPIO_34

M1

GPIO_35

N1

GPIO_36

M2

GPIO_37

N2

GPIO_38

L7

GPIO_39

C6

GPIO_47

P3

GPIO_55

N3

GPIO_56

JTAGEN

E6

JTAGEN

TCK

B5

GPIO_18_JCK

TMS

D5

GPIO_19_TMS

TDI

A4

GPIO_20_TDI

TDO

C5

GPIO_21_TDO

F6

USC_0

F5

USC_1

E2

USC_2

E5

USC_3

F3

USC_4

F4

USC_5

G6

USC_6

K14

VCHG

K16

CHGDET

P19

VUSBIN

H17

VUSBCHG

J15

GATEDRIVE

K15

ISENSE

L15

VBATSENSE

T12

CHGLIGHT

L18

TRKCHG1

L19

TRKCHG2

J14

BATTYPE

W12

CRST

J19

1u

REF

L16

REFBB

K17

REFOUT

68KR112

M18

REFCHG

N13

TEMP1

1uC147

P13

0.1uC144 TEMP2

L13

BATTEMP

M13

AUXADC1

M14

AUXADC2

R18

LIGHT1

R17

LIGHT2

R16

LIGHT3

R12

KEYOUT

R11

KEYON

M12

TCK

L10

TMS

L12

TDI

N12

TDO

C110

0.1u

P2

B8

D13

E12

F8

VCC4G7VCC5

VCC1

VCC2

VCC3

VABB

GND1

GND2

GND3

GND4

GND5

GND6

GND7K6GND8L6GND9

GND0

A6

J12

J13

E13

E14

H15

G17

URT100

3G 2.5G

GND RX TX

A

VCHAR ON_SW

ON_SW VBAT PWR URXD UTXD

B

C

D

E

F

C

D

E

F

567

1V8_VRTC

H13

VCC6

1V8_VCORE

C111

0.1u

H14

K4

VCC7

2V8_VMEM

C112

0.1u

B13

C12

L4

A13

C13

D12

M4

VCC8

VCC9

VCC10

VMEM2

VMEM3

VMEM4

VMEM1

D14

VMEM5

VMEM6

2V8_VEXT

2V85_VSIM

C106

C105

C104

0.1u

C115

0.1u

C114

C113

0.1u

F18

G18

H16

J16

E10

E11

G12

VMEM7

VMEM8

VMEM9

VMEM10

VMEM11

VMEM12

B1

VMEM13

VEXT1

C7

VEXT2D7VEXT3

0.1u

E8

F7

J4

J5

A9

P1

A5

W5

L5

E7

VSD

VSIM

VEXT6

VEXT7H5VEXT8

VEXT9

VEXT10K5VEXT11

VUSB

VDDRTC

VEXT4

VEXT5

U102

AD6721

GND10M7GND11

GND12N4GND13

GND14

GND15N7GND16

GND17

GND18

GND19

GND20

GND21

GND22

GND23

P5

P6

N5

N6

R4

R5

R6

M6

M5

G8

M3

F12

AGND0_6W9AGND0_7

AGND1_1

AGND1_2

AGND2_1

AGND2_2

AGND3_1

AGND3_2

AGND0_1

AGND0_2

AGND0_3

AGND0_4

AGND0_5

SGND1

SGND2

DGND

V9

V10

E18

V16

K19

U10

U11

W17

AGND3_3

J17

L17

P12

P14

H19

R13

R14

W10

100ohm

K13

R19

R100

C107

0.1u

L11

VBAT1

VBAT2

AGND3_4

AGND3_5

T16

P15

T17

P16

VBAT3

VBAT4

AGND3_6

AGND3_7

T18

VBACKUP

P17

U13

V13

V15

VBAT5

VBAT6

VBAT7

GSM_SW_SYNC_GPO_10

LGND

AGND4

VSSRTC

W2

R15

W19

W16

P11

SPWR1

SPWR2

MPOWER

SIM_RESET_GPIO23

CLKMUXOUT_GPO_4

TXPHASE_GPO_7

DCS_SW_SYNG_GPO_8

DCS_SW_DRV_GPO_9

GSM_SW_DRV_GPO_11

TX_GSM_GPO_16 TX_DCS_GPO_17 DTH_EN_GPO_18

DTH_VLO_EN_GPO_19

DTH_DATA_GPO_20 DATA_CLK_GPO_21

BKLIGHT0_GPO_22 BKLIGHT1_GPO_23

ABBRST_GPO_29

ABB_IGQ_GPIO_48

NC1A1NC2

NC3

D1

A19

89

VUSB

2V8_MV

C103

0.1u

C108

4.7u

T2 U2 V3 R3 T3 R1 T1 U1 V1 R2 T4 U3 U4 T5 U5 V4 A7 A8 B6 D8 B7 A3 B4 D4 C4 B2 B3 A2 C1 C2 C3 D3 E3 D2 E4 K2 L2 T9 U9 R8 R9 K11 K12 P7 P8 M10 M11 N10 N11 N8 N9 P9 P10 L8 L9 M8 M9 H6 H7 J6 J7 K7 K8 L3 R7 T7 T6 U6 W6 W7 H8 H9 T8 U8 R10 T10 U7 V7 V5 V6 J10 K10

INT

J8 K9 J9 V8 W8 W13 V12 V11 W11 M19 V14 W15 U19 T19 W14 N18 P18 N19 V17 L14 U12 T11 T13 E19

PA

K18 G19

QP

F19

QN

H18

IP

J18

IN

U18 U17 V18 V19 W18 U16 M15 N14 M16 N17 N16 T14 U14 T15 U15 M17 N15

ASM

TXON

RXON

CLKON

RPWRON

C124

C148 0.1u

C152 39p

R107 3300

2.2u

C153 39p

QP QN IP IN

ACC_DET

AUXOP_L AUXOP_R

LCD_RESET

D100

1

2

KDR331V

1V8_CAM

C100

C101

0.1u

4.7u

KEYPADCOL0 KEYPADCOL1 KEYPADCOL2 KEYPADCOL3

KEYPADCOL4 KEYPADROW0 KEYPADROW1 KEYPADROW2 KEYPADROW3 KEYPADROW4

MC_DATA0 MC_DATA1 MC_DATA2 MC_DATA3

SIMDATAIO

TXPA_GPO_2

CSFS_DBB CSFS_ABB

CSDD_DBB

CSDI_ABB CSDI_DBB

CSDO_ABB

BSOFS_DBB

BSIFS_ABB BSDO_DBB BSDL_ABB BSIFS_DBB

BSOFS_ABB

BSDI_DBB

BSDO_ABB

ASFS_DBB ASFS_ABB

ASDO_DBB

ASDI_ABB ASDI_DBB

ASDO_ABB

ATSM_GPO_6

ARSM_GPO_5

TXON_GPO_1

RXON_GPO_0

ABBRESET

CLKOUT_GATE

RESET2P8 RESET1P8

VCOREOUT

VMEMOUT VEXT_REG1 VEXT_REG2

VABB_LDO

VAPPGATE

VAPPCFG

VMEMSEL

VRTCSEL

ACCDETECT JACKSENSE

AIN3COMMON

AOUT2N1

AOUT2N2

NC4E1NC5

NC6

V2

W1

VBAT

MC_CLK MC_CMD

DMINUS

DPLUS

SIMCLK

GPO_3

GPIO_14

MSCLK

GPIO_15

GPIO_17

CLKON

VCXOEN

MCLKEN CLKOUT

PWRON

DBBON

RESET

VCORE

VMEMFB

VSIM_A

VUSB_A

PWREN

PMTSEL

AFCDAC

AOUT1P AOUT1N AOUT2P1 AOUT2P2

AOUT3L AOUT3R

C102

4.7u

MSFS

MSDI

ASM

TXON

RXON

MCLK

VRF

VRTC VMIC

VGP

VAPP

AIN1P AIN1N AIN2P AIN2N

AIN3L AIN3R

2V8_VEXT

KEY_COL0 KEY_COL1 KEY_COL2 KEY_COL3 KEY_COL4 KEY_ROW0 KEY_ROW1 KEY_ROW2 KEY_ROW3 KEY_ROW4 T_CLK T_CMD T_DATA0 T_DATA1 T_DATA2 T_DATA3 USBUSB+ SIM_DATA SIM_CLK SIM_RST _MULTI_RST

TFLASH_EN ANT_SW1 ANT_SW2

PA_EN PA_BAND

PCM_EN S_EN S_DATA S_CLK

AMP_SHDN

LCD_DIM_CTRL

3

R104

C125 1u

C138

47p

C149

NA

C150

39p

C109

0.1u

100K

_RESET

2V85_VSIM

2V5_VMICVUSB

C127 1u

C126 1u

AFC

R114

8.2

R115

8.2 C151 39p

SPK_P_ABB SPK_N_ABB

10 11 12 13

[Rev. C] Change Dual Diode Usage (CLKON -> DBBON) [Rev. C] Add ONNOFF to GPIO

[Rev.C] Remove 0ohm for SPWR1,2 [Rec.C] Change & Add Resistors on Battery Temp Measure ADC [Rev.C] Remove Diode on VUSBCHG [Rev.C] Change Net name for AOUT1 [Rev.C] Remove 0 Ohm on AOUT1 [Rev.C] Remove 0 Ohm on VMEMSEL [Rev.C] Change nWait 0 Ohm to 0 Ohm pad [Rev.C] Remove T-Flash detect signal(GPIO22) [Rev.C] Remove Temp_RF

2V75_VVCXO

2V8_VEXT

2V8_VMEM

1V8_VCORE

1V8_VRTC

C128 1u

SPK_RCV_P

SPK_RCV_N

C130

C129

C131

C132

27p

1u

C154 47p

C145 NA

1u

AUXIN

AUXIP

C146 NA

C134

C133

0.1u

1u

VINNORP VINNORNTX_RAMP

C143

C142

NA

[Rev. C] Add Test Point for Mass Production

[Rev. C] Add Test Point for HSL

ADD01 ADD02 ADD03 ADD04 ADD05 ADD06 ADD07 ADD08 ADD09 ADD10 ADD11 ADD12 ADD13 ADD14 ADD15 ADD16 ADD17 ADD18 ADD19 ADD20 ADD21 ADD22 ADD23

_ROM_CS1

2V8_VMEM

C120

C119

0.1u

14 15

DSR_TP

TXD_TP

RXD_TP

CN100

1 2 3 4 5 6

MEMORY(INTEL_256)

(256+ 64PSRAM)

G1

A0

F1

A1

E1

A2

D1

A3

B1

A4

C1

A5

F2

A6

E2

A7

F6

A8

D7

A9

E7

A10

B8

A11

C8

A12

D8

A13

F7

A14

E8

A15

F8

A16

D2

A17

B2

A18

B3

A19

E6

A20

B7

A21

C7

A22

C3

A23

D3

C122

0.1u

_ROM_CS2

_ROM_CS1

A24

E3

A25

B5

VCC11

L4

VCC12

B6

VCC21

K6

VCC22

J8

VCCQ1

K7

VCCQ2

L3

VCCQ3

D4

VPP

K5

P_VCC

K4

S_VCC

B4

VSS1

C4

VSS2

L1

VSS3

L2

VSS4

L5

VSS5

L6

VSS6

L7

VSS7

L8

VSS8

1V8_VCORE

C121

0.1u

RPWRON

USC0 USC1 USC2 USC3 USC4 USC5

A2

NC1A1NC2

NC8M8NC9

M7

2V8_VMEM

1

2

RPWRON DSR USC1 USC2

U100

A7

PF38F4050L0ZBQ0

NC3A8NC4NC6

_S_CS1

S_CS2

_P1_CS _P2_CS

P_MODE

_R_LB

_R_WE

_R_OE _R_UB

NC7

M1

M2

5

VCC

GND

3

H2

D0

H3

D1

G3

D2

H4

D3

J5

D4

G5

D5

J6

D6

H7

D7

G2

D8

J3

D9

G4

D10

J4

D11

H5

D12

G6

D13

H6

D14

J7

D15

J1 C5

D6 K2 K8

C2 D5 H1 F3

K1

_CE1

G8

_CE2

K3

_CE3

E4

_WP

E5

_ADV

F5

_WE

J2

_OE1

H8

_OE2

F4

_RST

G7

WAIT

C6

CLK

C136 1u

4

U101

NL17SZ08XV5T2

DATA00 DATA01 DATA02 DATA03 DATA04 DATA05 DATA06 DATA07 DATA08 DATA09 DATA10 DATA11 DATA12 DATA13 DATA14 DATA15

R105 0

C123

1000p

_ROMCS1

16

A

B

C

D

E

_RAM_CS1

_LBS

_UBS

_ROMCS1

ADV _WR _RD

0R109

_RESET _WAIT BURSTCLK

F

C

D

E

1234 6

5

78

9

- 94 -

7. CIRCUIT DIAGRAM

LGE Internal Use Only

1 3 5

AUDIO POWER AMP

[Rev. C] Change AMP Type (QFN -> BGA) [Rev.C] Remove 0 Ohm pad between SPK & RCV outputs

A

SPK_P_ABB

SPK_N_ABB

AMP_SHDN

B

C

C203

C204

R220 0

[Rev.C] Exchange Mic. Polarity

VINNORP

VINNORN

External Charger

[Rev.C] Change External Charging IC (ISL6294 -> ISL6299)

D

USB_DET

_CHG_EN

0.47u

R253

100K

R222 100K

R218 10K

C231

39p

RIGHT

DOWN

2V85_TF

5.6K5.6K

CLR

LEFT

UP

RIGHT

DOWN

C225

NA

7

CLR

FAV

LEFT MENU

UP

2 8

10KR219

R235

100ohm

R254

100ohmR231

USB_VBUS

33K

2V5_VMIC

R227

1K

R230

2.2K

C232

0.1u

R250

R255

R239

2.2K

10K

U200 TPA6205A1ZQVR

C3

C2

B1

C1

C205

220n

C212 39p

39pC214

VCHARGE

C227

C226 1u

1u

C200 4.7n

R201 39K

IN-

IN+

BYPASSB2GND

C206 4.7n

39KR224

C211

10u

C213

39p

C215

1

2

6

9

7 5

R252

C442 47p

100K

VDD

VO+

VO-_SHUTDOWN

VA204

EVL5M02200

CRDL

USB

IMIN

ICDL

USBON _EN

A3

B3

A1

VA205

EVL5M02200

ISL6299U203

BAT

_PPR

_CHG

GND

PGND

VBAT

C201

2.2u

MIC200

1 2

OB4-15L42-C33L

10

3 4

8 11

VBAT

C202

0.1u

C228

1u

SPK_RCV_P

SPK_RCV_N

POWERKEY

KEY_ROW0

KEY_ROW1

KEY_ROW2

KEY_ROW3

KEY_ROW4

KEY_ROW5

KEY_COL0

KEY_COL1

KEY_COL2

KEY_COL3

T-FLASH

[Rev.C] Remove T-flash detect

T_DATA2 T_DATA3

T_CMD

T_Detect

R200 680

R205 680

R225 680

R226

R229

R232 680

R237 680

R238

R240 680

R244

5.6K

R256 0

TFLASH_EN

END

PWR

R245

CN200

1 2 3 4

1

SW200

680R221

680R223

680

680R233

680

NA

R251 470K

R246

5.6K

SW203

SW206

SW209

4

7

*

T

VBAT

C219 1u

100K

R242

6

CAM

680R203

680R204

VA206 varistor

2

SW201

5

SW204

8

SW207

0

SW210

U202

BH28FB1WHFV

STBY

BGND62GND

34

VOUT

VIN

(2.8V 150mA)

J201

1

DAT18DAT2

7

2

DAT0

DAT3

6

3

VSS

CMD

4

5

VDD

CLK

11

9

GND3

GND1 GND2

GND4

12

10

varistor

VA200

VA207

3

SW202

6

SW205

9

SW208

#

SHARP

2V85_TF

51

NC

C220 1u

R248

R247

MENU

SEL

SEND

CONF

FAV

SEL

SEND

CONF

T_DATA1 T_DATA0

T_CLK

KEY BACKLIGHT

R206

R207

R208

R20947R211

47

LD202

LD200

LD201

LD203

FLIP SWITCH

[Rev.C] Change Hall-effect Switch (A3212 -> EM-1681)

VIBRATOR

(1608)

MOTORKEY_COL4

VIBRATOR

SIM CONNECTOR

R241

C218

4.7u

[Rev.C] Remove N.A. resistor (R246)

10

R210

47

LD204

KEY_BACKLIGHT

Q2_C4Q2_E

3

Q1_B

2

Q1_E

1

Q200

LD205

94

Q2_B

Q1_C

VBAT

5

6

2V85_VSIM

R243

15K

0R249

C222

NA

VA201

C207 27p

VBAT

10

VA202

VA203 EVL5M02200

2V8_VMEM

C208 1u

LD206

U201

EM-1681-FT

14

VDD

VSS

R212

LD207

2

3

47

OUT

NC

R21347R214

LD208

BACK-UP BATTERY

VBACKUP

C217 27p

J200

1

4

C1

C5

2

5

C2

C6

3

6

C3

C7

7

10

GND1

GND4

8

9

GND2GND3

LD209

C209 1u

2V85_VSIM

47

C221

220n

C210 27p

R215

LD210

47

C223

C216 1u

NA

R216

FLIP

LD211

47

C224

1000p

R217

47

BAT200

SIM_RST SIM_CLKSIM_DATA

A

B

C

D

E

1

2

3

54

- 95 -

7. CIRCUIT DIAGRAM

LGE Internal Use Only

A

B

C

D

E

1

CAMERA CTL IC

[Rev. C] Chane R308 Usage (_WAIT pull-up)

MULTI_BYPASS

_MAIN_CS

CAM_INT

2V8_MV

_MULTI_RST

R307

C_RST _WAIT

13M_AIT

100K

C316

1u

CHARGE PUMP

MLED

LCD_DIM_CTRL

2V8_VEXT

100K

DATA00 DATA01 DATA02 DATA03 DATA04 DATA05 DATA06 DATA07 DATA08 DATA09 DATA10 DATA11 DATA12 DATA13 DATA14 DATA15

ADD01

FB300

R330

_RD

_WR

R305 0

_SUB_CS

R323

1.5K

VBAT

2

1V8_VCAM

H5

C301

0.01u

VDD_CORE

H6

GND_CORE

D3

PSCAN_EN

E10

PTEST_EN

J3

PHD0

H3

PHD1

K4

PHD2

J4

PHD3

K5

PHD4

J5

PHD5

K6

PHD6

J6

PHD7

K10

PHD8

J9

PHD9

H10

PHD10

H9

PHD11

G10

PHD12

G9

PHD13

G8

PHD14

F10

PHD15

BYPASS

K7

PHLCD_BY

K1

PHCS_

J1

PHRD_

K2

PHWE_

J7

PHLCD_A0

J8

PHINT

K3

PRST_

K8

PHLCD2_CS_

J10

PHGPIO_CS_

F2

PS_RST_

K9

PHWAIT_

1000pC312

J2

PMCLK PPXL_CLK

G3 H8

VDD_IO0

H4

GND_IO0 GND_IO1

VBAT

C320

R326 100K

C343 1u

10u

C331 1u

2 3 4

U304

RT9011-MGPQW

VIN1VOUT1

VOUT2

EN1 EN2 NC1

PGND

9

U302 AAT3155ITP-T1

5

IN

8

OUTCP

11

EN_SET

4

GND

NC2

GND

3 7

4

5

6

8

9

10

MAIN 262K TFT(128*160)_SUB CSTN(96*64) LCD

FL301

FL303

9

8

7

6

C311 NA

C_CD01 C_CD02 C_CD03

C_CD04 C_CD05 C_CD06 C_CD07

C_HS C_VS C_MCLK C_PCLK

C_SCK

USB_P

USB_NUSB-

[Rev.C] Main FPCB pin Map is changed

SPK_RCV_P

SPK_RCV_N

L_DATAOUT08 L_DATAOUT09 L_DATAOUT10 L_DATAOUT11 L_DATAOUT12

MOTOR

VSYNCOUT

MLED4 MLED3 MLED2 MLED1

MLED L_DATAOUT07 L_DATAOUT06 L_DATAOUT05

C_CD05_OUT C_CD06_OUT C_CD07_OUT

C_VS_OUT

C_HS_OUT

C_SDA_IN C_SCL_IN

C_RST

C30347p

VCHARGE

R306

12K

CHG_DET

C314

R313

12K

NA

VBAT

R311

0

3pC326

39pC325

C346 10u

C323 22u

VCH

NCP348MTR2GU307

1

IN1

IN2

IN3

_FLAG

GND NC1 NC2

_EN

GATE_OUT

GATE

OUT2

OUT1

4

5

3

2

11 12

10

9

8

7

6

1V8_CAM

2V8_MV

27p

C300

C305NA

1u

1uC307

C306

47p C304

I/O CONNECTOR

HS_OUT_L HS_OUT_R

JACK_DETECT CN301 1 2

3

VCHARGE

C348 10u

CN300 1 2 3 4 5 6 7 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

EAR_MIC

L300 100nH

RPWRON

DSR

USC2 USC1

R310

2V8_MV

100K

R300

60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32

C308

1u

C309

NA

2V8_VEXT

100KR314

100KR315

R304 100K

NAR301

100KR312

LCD_RD

LCD_ID IF_MODE LCD_RS_OUT L_MAIN_LCD_CS_OUT LCD_WR_OUT L_DATAOUT15 L_DATAOUT14 L_DATAOUT13

L_SUB_LCD_CS_OUT L_DATAOUT00 L_DATAOUT01 L_DATAOUT02 L_DATAOUT03

L_DATAOUT04 C_CD04_OUT C_CD03_OUT C_CD02_OUT C_CD01_OUT C_CD00_OUT

CAM_PWR_EN

C310 NA

VBAT

C_PCLK_OUT

C_MCLK_IN

CN302

HS_MIC

100nHL301

IO_P6

20

IO_P7

R318

47

C360 100p

C332

C333 18p

18p

C349 47p

C334

1u

21 19 1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18

20

22

ICVE10184E150R101FR

2 : AUDIO

4 : EAR_L 5 : EAR_R

6 : USB D+ 7 : USB D8 : JACK_D

9,10 : BATT

11 : R/ON

12,13 : CHG

14 : DSR

15 : VUSB 16,17 : UART

C350

47p

L_DATA00 L_DATA01 L_DATA02 L_DATA03

ICVE10184E150R101FR

L_DATA07 L_DATA06 L_DATA05 L_DATA04LCD_RESET

L_DATA08 L_DATA09 L_DATA10 L_DATA11

L_DATA12 L_DATA13 L_DATA14 L_DATA15

C315

HSEJ-18S04-25R

C_CD01_OUT C_CD02_OUT C_CD03_OUT

C_CD04_OUT C_CD05_OUT C_CD06_OUT C_CD07_OUT

C_HS_OUT C_VS_OUT C_MCLK_IN

2V8_MV

CAM FILTER

4

INOUT_A4

3

INOUT_A3

2

INOUT_A2

1

INOUT_A1

4

INOUT_A4

3

INOUT_A3

2

INOUT_A2

1

INOUT_A1

1

INOUT_A1

2

INOUT_A2

3

INOUT_A3

4

INOUT_A4

2V8_MV

R302

R303

4.7K

INOUT_A1

1

INOUT_A2

2

INOUT_A3

3

INOUT_A4

4

U305 STF203-22-TC

USB+

VUSB

4

ICVE10184E150R500FR

10

G15G2

INOUT_B4

INOUT_B3

INOUT_B2

INOUT_B1

ICVE10184E150R500FR

5G110

G2

INOUT_B4

INOUT_B3

INOUT_B2

INOUT_B1

ICVE10184E150R500FR

INOUT_B1

INOUT_B2

INOUT_B3

INOUT_B4

G110G2

5

INOUT_B1

INOUT_B2

INOUT_B3

INOUT_B4

G110G2

5

1

D+6D+IC

2

GND5VBUS

D-3D-IC

6

7

8

9

6

7

8

9

FL305

9

8

7

6

ICVE10184E150R500FR

FL307

AIT701GU300

PGPIO0 PGPIO1 PGPIO2 PGPIO3 PGPIO4 PGPIO5 PGPIO6 PGPIO7

PLCD0 PLCD1 PLCD2 PLCD3 PLCD4 PLCD5 PLCD6 PLCD7 PLCD8

PLCD9 PLCD10 PLCD11 PLCD12 PLCD13 PLCD14 PLCD15 PLCD16 PLCD17

GND_IO2

VDD_IO2 PLCD2_CS_ PLCD1_CS_

PLCD_RD_

PLCD_A0

PLCD_WE_

PHSYNC PVSYNC

PSEN PSDA PSCK

PDCLK

VDD_IO1

E9 D9 C10 B9 A7 B7 F9 D10

A10 B10 A9 C9 D8 A8 B8 C8 C7 C6 B6 C5 B5 A6 C4 A5 B4 C3

F8 E8 A2 B2 A3 B3 A4

E3 G1 E2

PD0

E1

PD1

D1

PD2

D2

PD3

C2

PD4

C1

PD5

A1

PD6

B1

PD7

H1 H2 G2 F3 F1

H7

VSYNCOUT

L_DATA00 L_DATA01 L_DATA02 L_DATA03 L_DATA04 L_DATA05 L_DATA06 L_DATA07 L_DATA08 L_DATA09 L_DATA10 L_DATA11 L_DATA12 L_DATA13 L_DATA14 L_DATA15

L_SUB_LCD_CS L_MAIN_LCD_CS LCD_RD LCD_RS LCD_WR

C_HS C_VS C_CD00 C_CD01 C_CD02 C_CD03 C_CD04 C_CD05 C_CD06 C_CD07

CAM_PWR_EN C_SDA C_SCK C_MCLK C_PCLK

2V8_MV

C317

C_PCLK_OUT

C302

1u

C_SCL_IN C_SDA_IN C_SDA

C_CD00_OUT C_CD00

1u

2V5_VMIC

R316

C327 27p

2V8_VEXT

C351

1u

C328 27p

20 R325

1.5K

R322

2.2K

C329 10u

C336

100p

U308 NLAS5223BMNR2G

1

VCC

2

NO1

COM2

3

COM1

4

IN1

5

NC1

GND

BATT_TEMP

HS_MIC

10

NO2

9

8

IN2

7

NC2

6

HS_OUT_L

AUXOP_L

C319

100u

HS_OUT_EN

10

C1+

C321

1u

9

C1-

7

C2+

C324

1u

6

C2-

3

D1

2

D2

1

D3

12

D4

27p

C337

C338

MLED1 MLED2 MLED3 MLED4

27p

C340

C339

2V8_MV

C371 0.1u

AUXIN

AUXIP

0.1uC372

ACC_DET

[Rev.C] PWREN is added [Rev.D] CAM LDO(1.8V) is removed

1V8_VCAM

FB301

C344 1u

0

HS_OUT_R

C318 100u

AUXOP_R

C345 1u

HS_OUT_EN

8 7 6 5

9

8

7

6

FL300

1

2

3

4

FL302

1

2

3

4

ICVE10184E150R101FR

FL304

1

2

3

4

1

2

3

4

VCH

USB_VBUS

1u

4.7u

C330

INOUT_B1

INOUT_A1

INOUT_B2

INOUT_A2

INOUT_B3

INOUT_A3

INOUT_B4

INOUT_A4

G15G2

10

INOUT_A1

INOUT_B1

INOUT_A2

INOUT_B2

INOUT_A3

INOUT_B3

INOUT_A4

INOUT_B4

G110G2

5

INOUT_A1

INOUT_B1

INOUT_A2

INOUT_B2

INOUT_A3

INOUT_B3

INOUT_A4

INOUT_B4

G15G2

10

INOUT_A1

INOUT_B1

INOUT_A2

INOUT_B2

INOUT_A3

INOUT_B3

INOUT_B4

INOUT_A4

G110G2

5

INOUT_B1

INOUT_A1

INOUT_B2

INOUT_A2

INOUT_A3

INOUT_B3

INOUT_A4

INOUT_B4

G15G2

10

[Rev. C] Exchange Input signals (USB & Debug)

[Rev. C] Add Pull-Up Resistor (R331)

USB_P

USB_N

DEBUG_TX

DEBUG_RX

1

2

3

4

9

8

7

6

9

8

7

6

9

8

7

6

ICVE10184E150R101FR

9

8

7

6

ICVE10184E150R101FR

2V8_VEXT

R319

NA

L_SUB_LCD_CS_OUTL_SUB_LCD_CS LCD_RS_OUTLCD_RS L_MAIN_LCD_CS_OUTL_MAIN_LCD_CS LCD_WR_OUTLCD_WR

L_DATAOUT00 L_DATAOUT01 L_DATAOUT02 L_DATAOUT03

L_DATAOUT07 L_DATAOUT06 L_DATAOUT05 L_DATAOUT04

L_DATAOUT08 L_DATAOUT09 L_DATAOUT10 L_DATAOUT11

FL306

L_DATAOUT12 L_DATAOUT13 L_DATAOUT14 L_DATAOUT15

FL308

U301

C4

A4

C1

A1

VBAT

NO1

NO2

NC1

NC2

MAX4717EBC-T

N.M.

B4

V+

COM1

COM2

GND

B1

IN1

IN2

R327 0

A

C

C322 NA

C2

A2

C3

A3

USB_DET

IO_P6

IO_P7

D

0R328

1 4

2

3

5

67

- 96 -

7. CIRCUIT DIAGRAM

LGE Internal Use Only

2

FOR HINGE CONTACT PAD

OUT402

R402

OUT403

0

4.7nHL421

4.7p

C450

L422 4.7nH

SW401

ANT

RF500

G1

G2

RF

OUT401

A

R401

0

B

IN CASE OF GSM900/DCS1800

TO PART_NO SMRH0004501

1000pC418

C

D

L401 39nH

C422 NA

OUT404

L405

15nH

PART_NO SMRH0004701

CHANGE THIS TXmodule

6 7 8

9 10 11

PCS_RX GSM_RX GND1 GND2 GND3 ANT

SKY77517

[Rev.C] Add 0 Ohm pad on 26M clock for removing clock buffer (U400)

[Rev.C] Add 0 Ohm to ANT GND feeding

3

5

BS

TX_EN

U401

GND4

GND5

12

4

VRAMP

GND6

13

2

3

1

VBATT

VLOGIC

GND7

14

20

GND9

19

PCS_IN

18

NC

17

GSM_IN

16

GND8

PGND

15

21

PART_NO SFSB0001301

IN CASE OF GSM900/DCS1800

CHANGE THIS DUAL SAW FILTER

TO PART_NO SFSB0001401

FL401 B9310

1

I1

4

I2

G12G23G35G4

C410 12p

41

O1_1

O1_2

O2_1

O2_2

10

C402

39p

C411

0.01u

9

8

7

6

SFSB0001301

C403 68p

C412 18p

C423

C413 33p

C404 27p

VBAT

17

VCC_REF

VLDO2

VAFC_NC

VLDO1

TXOP_HI

TXOP_LO

VLDO3

NC

8

VBAT

VDD

L

H

QP

QN

16 15 14 13 12 11 10 9

IP

IN

7

PA_BAND

L

H

L

H

X401

26MHz

12

TSX-3225_26MHZ

C430

0.1u

34

5

C408

ANT_SW1 PA_EN

H

10p

33pC414

C416 100p

C409 22u

C405 27p

R411

MODE

GSM850 RX

PCS1900 RX

GSM850 TX

PCS1900 TX

100ohmR406

100ohmR407

68R410

100ohm

PA_BAND

PA_EN

TX_RAMP

ANT_SW1

TX2G_4dB atten

R412

24

R413

220

R417

30

R416 180

R414

R418 180

220

TX1G_5dB atten

C417

0.1u

18

24

23

22QB20

19

21

Q

25

3p

L402

5.1nH

3pC425

3pC426

L403 18nH

3pC431

RX1900B

26

RX1900

27

RX1800B

28

RX1800

29

RX900B

30

RX900

31

RX850B

32

RX850

33

GND

VCC_BBQ

VCC_FE

I

1

2

3

REF_OP

U402 AD6548

VCC_BBI

IB

4

REFIN

REFINB

SCLK

SDATA7SEN

6

5

C435 100p

VCC_TXVCO

C420 27p

8

9

106

A

C407

1000pC401

C406

NA

for DBB

26M

B

R415

AFC

1K

C415

0.1u

VBAT

C421 39p

C432 100p

C429

0.1u

2V8_VMEM

C419

0.1u

220nC424

C434

C433

100p100p

C427

0.1u

S_DATA S_EN S_CLK

2V75_VVCXO

C428

0.1u

C

D

E

1

2

3

45

- 97 -

7. CIRCUIT DIAGRAM

LGE Internal Use Only

1

A

2 3 4

7 8 9 5 6

10

A

MAIN Board Side LCD Side

2V8_MV1V5_CAM

CN602

1

60 59

2 3

SPK_RCV_N

L_DATAOUT08 L_DATAOUT09 L_DATAOUT10 L_DATAOUT11 L_DATAOUT12

MOTOR

B

C

VSYNCOUT

MLED4 MLED3 MLED2 MLED1

MLED L_DATAOUT07 L_DATAOUT06 L_DATAOUT05

C_CD05_OUT C_CD06_OUT C_CD07_OUT

C_VS_OUT C_HS_OUT

C_SDA_IN C_SCL_IN

C_RST

4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32

2V8_MV

LCD_RESET

MLED MLED1 MLED2 MLED3 MLED4

VSYNCOUT

MOTOR

2V8_MV

CN601

40

1

39

2

38

3

37

4 5

36

6

35

7

34

8

33

9

32

10

31

11

30 29

12

28

13

27

14

26

15

25

16

24

17

23

18

22

19 20

21

LCD_RD

LCD_ID IF_MODE LCD_RS_OUT L_MAIN_LCD_CS_OUT LCD_WR_OUT L_DATAOUT15 L_DATAOUT14 L_DATAOUT13 L_DATAOUT12 L_DATAOUT11 L_DATAOUT10 L_DATAOUT09 L_DATAOUT08

SPK_RCV_N SPK_RCV_P

LCD_RDSPK_RCV_P

C_CD04_OUT C_CD03_OUT C_CD02_OUT C_CD01_OUT C_CD00_OUT

C_PCLK_OUT

C_MCLK_IN

CAM_PWR_EN

LCD_ID IF_MODE LCD_RS_OUT L_MAIN_LCD_CS_OUT LCD_WR_OUT L_DATAOUT15 L_DATAOUT14 L_DATAOUT13

LCD_RESET L_SUB_LCD_CS_OUT L_DATAOUT00 L_DATAOUT01 L_DATAOUT02 L_DATAOUT03 L_DATAOUT04

L_SUB_LCD_CS_OUT

L_DATAOUT00 L_DATAOUT01 L_DATAOUT02 L_DATAOUT03 L_DATAOUT04 L_DATAOUT05 L_DATAOUT06 L_DATAOUT07

GB042-60P-H10-E3000 ENBY0035901

ENBY0036701

B

C

D

CAM_PWR_EN

C_MCLK_IN

C_PCLK_OUT

C_CD00_OUT C_CD01_OUT C_CD02_OUT C_CD03_OUT C_CD04_OUT C_CD05_OUT

E

TP?TP?

1 2

10 11

2V8_MV

1V5_CAM

CN603

20

1

19

2

18

3

17

4

16

5

15

6

14

7

13

8

12

9

C_RST

C_SCL_IN

C_SDA_IN

C_HS_OUT

C_VS_OUT C_CD07_OUT C_CD06_OUT

ENBY0019501

3 4 5

D

- 98 -

7. CIRCUIT DIAGRAM

LGE Internal Use Only

1

A

B

C

2

3 10

4 6 7

DOWN

UP

UPDOWN

123

CN101

->

GND

1

2

->

KEY_COL1

3

->

KEY_COL2

KEY_ROW0

4

->

8

95

A

B

C

D

E

1

D

3

4

52

LGE Internal Use Only

- 99 -

8. BGA IC Pin Check

AD6721: EUSY0321501

USE

NOT IN USE

- 100 -

8. BGA IC Pin Check

LGE Internal Use Only

Only for training and service purposes

AIT701G: EUSY0318501

A

B

C

D

E

F

G

H

J

K

1

2

3

4

5

6

7

8

9

10

AIT701G : EUSY0318501(TOP VIEW)

USE

NOT IN USE

- 101 -

8. BGA IC Pin Check

LGE Internal Use Only

EUSY0306901

USE

NOT IN USE

LG KP210, KP215 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual