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LG GS290, Service Manual

The LG GS290 Service Manual is a comprehensive and user-friendly guide that allows you to troubleshoot, repair, and maintain your LG GS290 phone. With easy-to-follow instructions, diagrams, and illustrations, this manual is available for free download on manualshive.com, ensuring you have all the necessary information at your fingertips.

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LGE Internal Use Only

Copyright © 2010 LG Electronics. Inc. All right reserved.

Only for training and service purposes

GS290 Operational Description                                                                                      Revision B 

LG Electronics                     

                      65/136                                                   

LGE Property

 

 

LDO     

Net name     

Output Voltage     

Output Current   

Usage     

SD1     

CORE_1V35 

1.35V     

600mA     

Core & for LDO 

SD2 

SD_1V8 

1.8V 

300mA 

Memory 

VAUX     

VFM_2V9 

2.9V     

100mA     

Touch, LCD 

VIO 

VIO_2V62     

2.62V     

100mA     

Peripherals 

VSIM 

VSIM_2V9 

2.9V     

70mA     

SIM card 

VMME 

VMME_2V9 

2.9V 

150mA 

u-SD 

VUMTS 

CAM_2V85 

2.85V 

110mA 

Camera 

VUSB 

VUSB 

3.1V 

40mA 

USB 

VLED 

VLED 

2.9V 

10mA 

Not used 

VAUDIOa 

VAUDA_2V5 

2.5V 

200mA 

Stereo headset, Mono earpiece

VAUDIOb 

VAUDB_2V5 

2.5V 

50mA 

Analog parts of S-Gold 

VRF1 

VRF_2V85 

2.85V 

150mA 

2.85 V supply for SMARTi-PM 
RF transceiver 

VRF2 

VRF_1V5 

1,53V 

100mA 

1.5 V supply for SMARTi-PM 
RF transceiver 

VRF3 

VBT_2V65 

2.7V 

150mA 

BT/FM Radio 

VPLL 

VPLL_1V35 

1.35V 

30mA 

S-GOLD3 PLL 

VRTC 

VRTC_2V11 

2.11V 

4mA 

Real Time Clock 

VAFC 

VAFC 

2.65V 

5mA 

Not used 

VVIB 

CAM_A_2V8 

2.8V 

140mA 

Camera 

4. TROUBLE SHOOTING

22u

C234

0.1u

C204

C200
1u

u2.

2
10

2

C

VAUDA_2V5

C202
2.2u

SD_1V8

u0

1

00

2L

VBAT

30

2

C

u1

0.1u

C214

VFM_2V9

1u

C205

1u

C207

VRF_1V5

10u

L201

10u

C208

2.2u

C209

VPLL_1V35

u1
11

2

C

VBAT

CORE_1V35

CAM_A_2V8

U202

PMB6821

4

H

8

H

9

D

6

J

7

H

6

H

5

H

9

G

8

G

7

G

6

G

5

G

4

G

3

G

9

F

8

F

7

F

6

F

5

F

4

F

3

F

9

E

8

E

7

E

6

E

5

E

4

E

8

D

7

D

6

D

5

D

4

D

6

C

L2

L10

K2

J10

K1

K11

J3

J11

H3

H9

J2

J1

H10

H1

H11

H2

G10

G1

G2

G11

F11

F1

F10

F2

E11

E1

E10

E2

D1

D11

E3

D10

D2

C10

C1

C11

D3

C2

B1

1

1

L

8

A

9

J

0

1

K

9

L

9

K

8

L

8

K

7

L

8

J

7

K

6

L

7

J

6

K

5

K

5

J

5

L

4

L

4

K

3

L

3

K

4

J

1

A

4

B

1

1

B

1

L

1

1

A

9

B

0

1

A

0

1

B

9

C

9

A

8

C

8

B

6

A

7

C

7

A

5

A

7

B

5

C

6

B

5

B

4

A

4

C

3

A

3

B

3

C

2

A

2

B

M

V_

0

E

S

P

V_

T

A

D

-

C

A

+

C

A

D

N

E

P

S

U

S

N_

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O

B

S

U

V

B

S

U_

D

D

V

P

NI

_

O

N

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M

N

NI

_

O

N

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M

O

N

O

M_

D

D

V

M_

X

EF

E

R

V

PT

U

O_

O

N

O

M

O

N

O

M_

S

S

V

NT

U

O_

O

N

O

M

F

E

R

R

F

E

R

V

K

NI

H

S_

H

S

AL

F

N

O_

H

S

AL

F

A

P

N

O

XT

LL

P

V

OI

LL

P

D

D

V

OI

V

2

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V

3

S

M

U

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2

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P

1

S

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PT

U

O

N

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R

E

W

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P

G

O

D

W

1F

F

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N

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2F

F

O_

N

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U

O_

FF

O_

N

O

LT

R

C_

E

C

R

U

O

S

E

R

T

NI

_

C2I

T

A

D_

C2I

KL

C_

C2I

M

W

P_

1L

B

M

W

P_

2L

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W

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3L

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L

RT

N

C_

H

C

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D

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D

EL

V

1

D

S

V

RCV
VPIN
VMIN

VMME

D+

VDDMME

D-

VDDRF2

RESET_N

VRF2

RESET2_N
SLEEP1_N

VRF3

SLEEP2_N

VDDRF13_AFC

VAUDIOA

VRF1

VDDAUDIOA

VVIB

VDDSIMVIB

VDDAUDIOB
VAUDIOB

VSIM

VAUX

VAFC

VDDAUX

VRTC

SU1_GATE
SU1_GND

VDDUMTS

SU1_FB

VUMTS

SU1_ISENSE

VDDSD1

VDDSD2

SD1_FB

SD2_FB

SD1_FBL

SD2_FBL

1

S

S

V

2

S

S

V

3

S

S

V

4

S

S

V

5

S

S

V

6

S

S

V

7

S

S

V

8

S

S

V

9

S

S

V

01

S

S

V

11

S

S

V

21

S

S

V

31

S

S

V

41

S

S

V

51

S

S

V

61

S

S

V

71

S

S

V

81

S

S

V

91

S

S

V

02

S

S

V

12

S

S

V

22

S

S

V

32

S

S

V

42

S

S

V

52

S

S

V

62

S

S

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72

S

S

V

82

S

S

V

92

S

S

V

03

S

S

V

F

E

R

V_

S

S

V

1

D

S_

S

S

V

2

D

S_

S

S

V

u1.

0

71

2

C

u0

1
51

2

C

61

2

C

u0

1

VBAT

u1.

0

33

2

C

CAM_2V85

40

2

R

K7.

4

1u

C219

C222

10u

1u

C223

52

2

C

u0

1

31

2

R

I

N

D

R214

27K

VAUDB_2V5

C226
2.2u

0.1u

C227

H-

KT

RE

06

1S

D

K

00

2

D

00

2

PT

VBAT

51

2

R

K0

01

VIO_2V62

C228
1u

10

2

PT

61

2

R

K0

01

VSIM_2V9

2.2u

C229

VBAT

1u

C230

RTC_2V11

2.2u

C231

VBT_2V65

23

2

C

u1

VRF_2V85

VMME_2V9

VBAT

1u

C235

FB201

A1

22

S8

06

1Z

P

M

02

2

20

2

BF

A1

22

S8

06

1Z

P

M

VUSB

1u

C236

1u

C237

2.2u

C238

SD_1V8

C239
2.2u

20

2

PT

VBAT

C240
2.2u

VBAT

C241
1u

VBAT

K7.

4

12

2

R

K0

01

72

2

R

H-

KT

RE

06

1S

D

K

10

2

D

USB_SE0_VM

N

E_

Y

E

K

G

O

D

W

USB_OEN

VCXO_EN

TXON_PA

A

D

S_

C2I

L

C

S_

C2I

RTC_OUT

USB_DAT_VP

L

RT

C_

E

C

R

U

O

S

E

R

USB_DP

USB_DM

RPWRON_EN

2F

F

O_

N

O

ON_OFF2

N

O

R

W

P

T

NI

_

R

E

W

O

P

S

L

B_

Y

E

K

PMRSTN

FM_SPK_INN
FM_SPK_INP

FM_SPK_OUTP

FM_SPK_OUTN

BT_CLK_REQ

PMIC

Summary of Contents for GS290

Page 1: ...Service Manual Model GS290 Internal Use Only Service Manual GS290 Date March 2010 Issue 1 0 ...

Page 2: ...iption 54 3 17 Receiver part 56 3 18 Transmitter part 57 3 19 RF synthesizer 58 3 20 Front End Module control 59 3 21 Power Amplifier Module 60 3 22 PAM Schematic 61 4 TROUBLE SHOOTING 62 4 1Trouble shooting test setup 62 4 2 Power onTrouble 63 4 3 Charging trouble 66 4 4 LCD display trouble 68 4 5 CameraTrouble 70 4 6 Receiver Speaker trouble 72 4 7 Microphone trouble 75 4 8Vibrator trouble 77 4 ...

Page 3: ... LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes ...

Page 4: ...se of common carrier telecommunication service of facilities accessed through or connected to it LGE will not be responsible for any charges that result from such unauthorized use 1 2 2 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 ser...

Page 5: ...fferent 1 2 7 Interference and Attenuation An GS290 may interfere with sensitive laboratory equipment medical equipment etc Interference from unsuppressed engines or electric motors may cause problems 1 2 8 Electrostatic Sensitive Devices ATTENTION Boards which contains Electrostatic Sensitive Device ESD are indicated by the sign Following information is ESD handling Service personnel should groun...

Page 6: ...le Programmable Read Only Memory EGPRS Enhanced General Packet Radio Service EL Electroluminescence ESD Electrostatic Discharge FPCB Flexible Printed Circuit Board GMSK Gaussian Minimum Shift Keying GPIB General Purpose Interface Bus GPRS General Packet Radio Service GSM Global System for Mobile Communications IPUI International Portable User Identity IF Intermediate Frequency LCD Liquid Crystal D...

Page 7: ...ic Switched Telephone Network RF Radio Frequency RLR Receiving Loudness Rating RMS Root Mean Square RTC Real Time Clock SAW Surface Acoustic Wave GS290 Operational Description Revision B SIM Subscriber Identity Module SLR Sending Loudness Rating SRAM Static Random Access Memory STMR Side Tone Masking Rating TA Travel Adapter TDD Time Division Duplex TDMA Time Division Multiple Access UART Universa...

Page 8: ...ime Over 250 hours Paging Period 9 RSSI 85dBm Charging time Under 3 hours RX Sensitivity EGSM GSM850 105dBm DCS PCS 105dBm TX output power EGSM GSM850 33dBm PL 5 DCS PCS 30dBm PL 0 GPRS compatibility Class 10 SIM card type 3V Small Display Main 240 u 400 pixels 3 WQVGA 262K color Status Indicator Send Key Shortcut Key Volume Up Down Key PWR Key Camera Key Lock Key ANT Built in antenna EAR Phone Ja...

Page 9: ...MHz n 512 a 885 RX TX 95 MHz PCS1900 2 Phase Error RMS 5 degrees Peak 20 degrees 3 Frequency Error 0 1ppm GSM850 EGSM 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 12 19 dBm 3dB DCS1800 PCS1900 Level Power Toler Level Powe...

Page 10: ... 250 33 400 60 600 1 200 60 1 200 1 800 60 1 800 3 000 63 3 000 6 000 65 6 000 71 DCS1800 PCS1900 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 5 Output RF Spectrum due to modulation 6 000 73 GSM850 EGSM Offset from Carrier kHz Max dBm 400 19 600 21 1 200 21 1 800 24 DCS1800 PCS1900 Offset from Carrier kHz Max dBm 400 22 600 ...

Page 11: ...0 EGSM BER Class II 2 439 102dBm DCS1800 PCS1900 BER Class II 2 439 100dBm 9 Rx Level Report accuracy r 3 dB 10 SLR 8 r 3 dB Frequency Hz Max dB Min dB 100 12 200 0 300 0 12 1 000 0 6 2 000 4 6 3 000 4 6 3 400 4 9 11 Sending Response 4 000 0 12 RLR 2 r 3 dB Frequency Hz Max dB Min dB 100 12 200 0 300 2 7 500 5 1 000 0 5 3 000 2 5 3 400 2 10 4 000 2 13 Receiving Response Mean that Adopt a straight ...

Page 12: ...ce d 2 5 ppm 19 Change 32 768KHz tolerance d 30ppm 20 Power consumption Standby Normalஆd 3 mA PP9 21 Talk Time EGSM Lvl 7 Battery Capacity 800mA 180 min EGSM Lvl12 Battery Capacity 800 mA 320min 22 Standby Time Under conditions at least 300 hours 1 Brand new and full 900mAh battery 2 Full charge no receive send and keep GSM in idle mode 3 Broadcast set off 4 Signal strength display set at 3 level ...

Page 13: ... 103dBm a 101dBm 1 105dBm a 104dBm 0 106 dBm 25 Antenna Display Off No Service Battery Bar Number Voltage 0 05V 3 3 72V 4 2V 2 3 65V 3 71V 1 3 59V 3 64V 26 Battery Indicator 0 3 35V 3 58V 3 59VĻ 0 05V Call 27 Low Voltage Warning 3 59VĻ 0 05V Standby 28 Forced shut down Voltage 3 35 r 0 05 V 29 Battery Type Li ion Battery Standard Voltage 3 7 V Battery full charge voltage 4 2 V Capacity 900mAh 30 T...

Page 14: ... 27dBm 3dB 13 17dBm 3dB 6 27dBm 3dB 14 15dBm 3dB 7 27dBm 3dB 15 13dBm 3dB 8 27dBm 3dB 16 11dBm 5dB 9 25dBm 3dB 17 9dBm 5dB 10 23dBm 3dB 18 7dBm 5dB 11 21dBm 3dB 19 5dBm 5dB 12 19dBm 3dB DCS1800 PCS1900 Level Power Toler Level Power Toler 0 26 25dBm 3dB 8 14dBm 3dB 1 26 25dBm 3dB 9 12dBm 4dB 2 26 25dBm 3dB 10 10dBm 4dB 3 24dBm 3dB 11 8dBm 4dB 4 22dBm 3dB 12 6dBm 4dB 5 20dBm 3dB 13 4dBm 4dB 6 18dBm ...

Page 15: ...ectronics 18 136 LGE Property DCS1800 PCS1900 Offset from carrier kHz Max dBc 100 0 5 200 30 250 33 400 54 600 1 200 60 1 200 1 800 60 1 800 3 000 63 3 000 6 000 65 6 000 71 GSM900 EGSM Offset from carrier kHz Max dBm 400 23 600 26 1 200 27 1 800 30 DCS1800 PCS1900 Offset from carrier kHz Max dBm 400 23 600 26 1 200 27 7 Output RF Spectrum due to switching transient 1 800 30 6 ...

Page 16: ...ses LGE Internal Use Only 3 TECHNICAL BRIEF 3 TECHNICAL BRIEF GS290 Operational Description Revision B LG Electronics 19 136 LGE Property 3 Technical brief 3 1 GS290 Functional Block diagram The functional component arrangement is mentioned below diagram Figure 1 GS290 Functional block diagram ...

Page 17: ...wer battery and power management IC a complete 3 chip system solution is achieved which results in extremely compact implementation very low power consumption and cost effective system performance A wide choice of communication interfaces allows complex data and multimedia system designs Due to its flexible interfaces S GOLD3TM can be set up easily to control a wide variety of RF architectures SMA...

Page 18: ...itional external hardware 3 2 2 Block Description z Processing core ARM926EJ S 32 bit processor core for controller functions The ARM926EJ S includes an MMU and the Jazelle Java extension for Java acceleration TEAKLite DSP core z ARM Memory 32k Byte Boot ROM on the AHB 96k Byte SRAM on the AHB flexibly usable as program or data RAM 16k Byte Cache for Program internal 8k Byte tightly coupled memory...

Page 19: ...nearized GMSK Pulse Filter Hardware accelerators for equalizer and channel decoding Incremental Redundancy memory for EDGE class 12 support A5 1 A5 2 A5 3 Cipher unit GEA1 GEA2 GEA3 Cipher Unit to support GPRS data transmission Advanced static and dynamic power management features including TDMA Frame synchronous low power mode and enhanced CPU modes idle and sleep modes Pulse Number Modulation ou...

Page 20: ... access 2 times transmission Melody IC Not Used S W Infineon Software CODEC 3 2 4 RF Interface T_OUT S Gold3 uses this interface to control RF IC and Peripherals 13 signals are provided switch on off RF ICs Periodically each TDMA frame Table 2 RF Interface Spec T_OUT Resource Interconnection Description T_OUT0 TXON_PA PAM Power on T_OUT1 N A N A T_OUT2 PA_BAND TX RF band select T_OUT3 N A N A T_OU...

Page 21: ... by reading battery voltage and other analog values Table 4 S Gold3 ADC channel usage ADC channel Resource Interconnection Description M0 BAT_ID Battery temperature measure M1 RF_TEMP RF block temperature measure M2 N C M3 N C M4 N C M5 N C M6 N C M7 N C M8 VSUPPLY Battery supply voltage measure M9 N C M10 N C Resource Name Remark USIF1 USIF1_TXD TXD Transmit Data USIF1_RXD RXD Receive Data USIF1_...

Page 22: ...RT_BT_CTS Bluetooth CTS USIF3 USIF3 _RXD UART_BT_RX Bluetooth RX USIF3 _TXD UART_BT_TX Bluetooth TX CLK CLK32K CLK32k For FM Radio BT CLK32K GPIO_22 Not used CAMERA I F GS290 Operational Description Revision B LG Electronics 25 136 LGE Property 3 2 7 GPIO map Over a hundred allowable resources GS290 is using as follows except dedicated to SIM and Memory GS290 GPIO General Purpose Input Output Map ...

Page 23: ...YNC CIF_VS Camera V sync CLKOUT CIF_MCLK Camera main clock CIF_PD CIF_PD Camera power down active high CIF_RESET CIF_RESET Camera reset LCD I F DIF_D0 DIF_D 0 LCD data 0 DIF_D1 DIF_D 1 LCD data 1 DIF_D2 DIF_D 2 LCD data 2 DIF_D3 DIF_D 3 LCD data 3 DIF_D4 DIF_D 4 LCD data 4 DIF_D5 DIF_D 5 LCD data 5 DIF_D6 DIF_D 6 LCD data 6 DIF_D7 DIF_D 7 LCD data 7 DIF_D8 DIF_D 8 LCD data 8 DIF_CS1 DIF_MAIN_CS MA...

Page 24: ...d I2S2_TX Not used I2S2_WA0 Not used GPIO_103 Not used External Memory MMCI_CMD TF_CMD T flash MMCI_DAT 0 TF_DAT0 T flash MMCI_CLK TF_CLK T flash GPIO_109 CAM_LDO_EN Camera Power LDO Control IrDA GPIO_110 GPIO_109 I2S1 I2S1_CLK0 BT_PCM_CLK For Bluetooth I2S1_CLK1 MMC_DETECT T flash Detect I2S1_RX I2S1_RX For Bluetooth I2S1_TX I2S1_TX For Bluetooth I2S1_WA0 I2S1_WA For Bluetooth External Memory MMC...

Page 25: ... For Headset Mic VMICP VMICP Power for MIC VMICN VMICN Power for MIC ADC M0 BAT_ID Battery temperature measure M1 RF_TEMP RF block temperature measure M2 M3 M7 M8 VSUPPLY Battery supply voltage measure M9 M10 Reference VREF IREF JTAG I F TDO TDO JTAG TDI TDI JTAG TMS TMS JTAG TCK TCK JTAG TRST_n _TRST JTAG RTCK RTCK JTAG ETM I F TRIG_IN TRIG_IN ETM Embedded Trace Macro Cell MON1 MON1 ETM MON2 MON2...

Page 26: ...CEPKT 4 ETM TRACEPKT 5 TRACEPKT 5 ETM TRACEPKT 6 TRACEPKT 6 ETM TRACEPKT 7 TRACEPKT 7 ETM Memory MEM_AD 0 DATA 0 MEM _AD 1 DATA 1 MEM _AD 2 DATA 2 MEM _AD 3 DATA D 3 MEM _AD 4 DATA 4 MEM _AD 5 DATA 5 MEM _AD 6 DATA 6 MEM _AD 7 DATA 7 MEM _AD 8 DATA 8 MEM _AD 9 DATA 9 MEM _AD 10 DATA 10 MEM _AD 11 DATA 11 MEM _AD 12 DATA 12 MEM _AD 13 DATA 13 MEM _AD 14 DATA 14 MEM _AD 15 DATA 15 MEM _WR_n _WR MEM ...

Page 27: ...12 MEM _A 13 ADD 13 MEM _A 14 ADD 14 MEM _A 15 ADD 15 MEM _A 16 ADD 16 MEM _A 17 ADD 17 MEM _A 18 ADD 18 MEM _A 19 ADD 19 MEM _A 20 ADD 20 MEM _A 21 ADD 21 MEM _A 22 ADD 22 MEM _A 23 ADD 23 MEM _A 24 ADD 24 MEM_A 25 ADD 25 MEM_A 26 ADD 26 MEM_CSA0_n ADD 27 MEM_CSA1_n ADD 28 MEM_CSA2_n ADD 29 MEM _RAS_n _RAS MEM _CAS_n _CAS MEM _WAIT_n _WAIT MEM _SDCLKO SDCLKO For Burst mode MEM _SDCLKI SDCLKI For ...

Page 28: ..._OUT3 FE1 T_OUT4 BT_WAKEUP T_OUT5 LIN_PWM_MAG T_OUT6 PA_MODE PAM T_OUT7 LIN_PWM_FRQ CC1CC7IO JACK_DETECT GPIO_52 LCD_BACKLIGHT LCD Backlight control GPIO_102 LCD_ID LCD ID check GPIO_54 RF I F RF_STR0 RF_EN CC1CC5IO _PPR For Charger RF_DATA RF_DA RF_CLK RF_CLK System Port AFC AFC CLKOUT0 26MHz Not used F26M 26MHZ_MCLK 26M Main Clock F32K to 32k crystal OSC32K to 32k crystal RESET_n _RESET TRIG_OUT...

Page 29: ...eband supply including Core DSP and memory interface External Bus Unit Support of S GOLD standby power down concept Low drop out LDO regulators for Flash and mobile RAM memory devices Voltage independent switching of two SIM cards LDO regulators for baseband I O supply LDO regulator for analog mixed signal section of S GOLD Low noise LDO regulators for RF devices Supply for Bluemoon Single Infineo...

Page 30: ...plied by the other linear regulator SM POWER includes a fully differential audio amplifier able to drive loads down to a nominal value of 8 Ohm for usage in hands free phones and for ringing 450 mW maximum output power adjustable gain mute switch SM POWER also integrates a charging function for Li Ion Li Polymer batteries click and pop protection SM POWER also integrates a charging function for Li...

Page 31: ...150mA Bluetooth VPLL 1V35_VPLL 1 35V 30mA S GOLD3 PLL VRTC 2V11_RTC 2 11V 4mA Real Time Clock VAFC VAFC 2 65V 5mA Not used VVIB 2V8_VLCD 2 8V 140mA LCD GS290 Operational Description Revision B LG Electronics 34 136 LGE Property driver for Vibra Motor with adjustable voltages soft startup shutdown and current limitation SM POWER offers several control functions Power on Reset Generator with logic s...

Page 32: ...1 VDDAUDIOA VVIB VDDSIMVIB VDDAUDIOB VAUDIOB VSIM VAUX VAFC VDDAUX VRTC SU1_GATE SU1_GND VDDUMTS SU1_FB VUMTS SU1_ISENSE VDDSD1 VDDSD2 SD1_FB SD2_FB SD1_FBL SD2_FBL 1 S S V 2 S S V 3 S S V 4 S S V 5 S S V 6 S S V 7 S S V 8 S S V 9 S S V 0 1 S S V 1 1 S S V 2 1 S S V 3 1 S S V 4 1 S S V 5 1 S S V 6 1 S S V 7 1 S S V 8 1 S S V 9 1 S S V 0 2 S S V 1 2 S S V 2 2 S S V 3 2 S S V 4 2 S S V 5 2 S S V 6 2...

Page 33: ...ternal circuitry The one wire interface EN SET is available to place the bq25040 into Test Jig Mode In Test Jig Mode the output is regulated at 4 2V and can be used without a battery The bq25040 has a single power output that charges the battery Either a 1 cell Li Ion or Li Ion Polymer battery with 4 1 4 2 or 4 4 Volts may be used 4 2V 3 74V 3 73V 3 65V 3 65V 3 59V 3 59V 3 35V Figure 5 Battery Blo...

Page 34: ... levels see Figure 6 It might be triggered by a push button or by the RTCOUT output of the S GOLD device as well To detect if the push button is pressed during system operation the logical level at pin ON or its change if Bit 1 EION in INTCTRL2 is asserted is recorded in bit LON of the ISF register If the high level of voltage at pin ON does not reach VIHdet Vbat 0 8 Vbat 0 3 the above mentioned b...

Page 35: ...entioned bit won t be set To support Remote power on function for factory mass production applied an analog switch as following figure As monitoring the RPWRON and Key matrix KP_OUT 2 KP_IN 6 GS290 system recognize whether remote power on or End key pushed GS290 Operational Description Revision B Figure 7 Remote power on and End key power on circuit 3 5 SIM uSD interface GS290 supports 1 8V 2 9V p...

Page 36: ...interface scheme is shown in Figure 8 SIM_IO SIM_CLK SIM_RST ports are used to communicate with BBP S Gold3 and the SIM power supply enabled by PMIC SIM Interface SIM_CLK SIM card reference clock SIM_RST SIM card Async sync reset SIM_IO SIM card bidirectional reset Figure 8 SIM Micro SD Circuit GCA26D 6S H18 E1500 J400 9 8 10 7 6 3 5 2 4 1 C1 C5 C2 C6 C3 C7 GND1 GND4 GND2 GND3 0 1u C401 VSIM_2V9 V...

Page 37: ...a bit 2 2 CD DAT3 I O Data bit 3 3 CMD I O Command response 4 VDD Power Power supply 5 CLK I Clock 6 VSS Ground Power ground 7 DAT0 I O Data bit 0 8 DAT1 I O Data bit 1 GS290 Operational Description Revision B LG Electronics 39 136 LGE Property The MicroSD Memory Module has eight exposed contacts on one side The S Gold3 is connected to the module using a dedicated eight pin connector Micro SD Memo...

Page 38: ... C N 9 1 C N 0 2 C N 1 2 C N 2 2 C N 3 2 C N 4 2 C N 5 2 C N 6 2 C N 7 2 C N 8 2 C N 9 2 C N 0 3 C N 1 3 C N 2 3 C N 3 3 C N 4 3 C N 5 3 C N A0 A1 I_O0 A2 I_O1 A3 I_O2 A4 I_O3 A5 I_O4 A6 I_O5 A7 I_O6 A8 I_O7 A9 I_O8 A10 I_O9 A11 I_O10 A12 I_O11 A13 I_O12 DQ0 I_O13 DQ1 I_O14 DQ2 I_O15 DQ3 DQ4 _CE DQ5 _WEN DQ6 _RE DQ7 ALE DQ8 CLE DQ9 R__B DQ10 _WP DQ11 DQ12 VCCN1 DQ13 DQ14 VSS1 DQ15 VSS2 LDQM VSS3 U...

Page 39: ...r training and service purposes 3 TECHNICAL BRIEF GS290 Operational Description Revision B LG Electronics 41 136 LGE Property 3 7 LCD Display LCD module include Main LCD 3 0 240x400 WQVGA 262K color TFT Backlight 5 piece of white LED LCD FPC Interface Spec Table 7 LCD FPC Interface Spec ...

Page 40: ...rt Control Logic and 2columns inputs to PCL The number of rows and columns depend on settings of the PCL Figure 10 Key pad part key matrix VA407 EVLC5S0250 CN401 3 2 1 R425 680 VA412 R423 680 VA411 EVLC5S0250 VA413 CN403 3 2 1 KB402 KB400 DNI VA404 R426 680 R424 680 R420 680 DNI VA400 DNI VA403 R419 680 R415 680 CN407 4 3 2 1 VA415 EVLC5S0250 KB401 VBAT R414 680 R412 680 EVLC5S0250 VA416 EVLC5S025...

Page 41: ... There are 2 snow white color LEDs on Key FPCB for keypad illumination Keypad Back light is controlled by SM Power Flash LED port which has constant current control function The whole configuration of the SM POWER Flash LED drivers is shown in below Figure11 Figure 11 Keypad Back light LEDs LD401 LD404 LD405 2 0 4 R 0 2 1 3 1 4 R 0 2 1 2 2 4 R 0 2 1 LD403 1 2 4 R 0 2 1 6 0 4 R 0 2 1 VBAT LD400 LD4...

Page 42: ...bsection Figure 13 I2C Serial data port control method GS290 Operational Description Revision B LG Electronics 44 136 LGE Property 3 10 LCD back light illumination Figure 12 LCD Back light unit and Flash LED charge pump IC The AAT3169 is a write only single wire interface It provides access to up to 32 registers that control device functionality In this system two sets of pulse trains are transmit...

Page 43: ... Inc All right reserved Only for training and service purposes 3 TECHNICAL BRIEF GS290 Operational Description Revision B LG Electronics 45 136 LGE Property 3 11 Audio GS290 Audio signal flow diagram as following diagram Figure 14 Audio signal flow diagram ...

Page 44: ...allows flexibility in routing and mixing audio channels Figure 15 Audio amplifier PMIC 3 12 2 Microphone circuit Figure 16 Microphone circuit 1u C350 1u C351 C320 2 2u 0 R348 0 1u C311 VIO_2V62 2 2u C362 0 1u C361 220n C347 220n C321 VBAT 27p C342 27p C343 LM49151TLX U304 4 E 4 D 3 D 4 C 2 A E2 B3 B2 A1 C3 E3 C2 D2 C1 A3 D1 A4 E1 4 B 1 B D D V D D V S L INM LSOUT INM LSOUT INL SET INR HPL BYPASS I...

Page 45: ...lated adapters MAIN FEATURES 30V input rating with Over Voltage Protection OVP Input Voltage Dynamic Power Management Feature 50mA integrated low dropout linear regulator LDO 1 Battery Regulation Accuracy 10 Charge Current Accuracy Pin selectable USB 100mA and 500mA maximum input current limit 4 2V 2 3A Test Jig mode Thermal Regulation Protection for Output Current Control Low Battery Leakage Curr...

Page 46: ...g RDS demodulator Audio output available over Bluetooth audio interface or dedicated audio output Control of FM via Bluetooth HCI or I2C Adaptive filter to suppress narrow band interference in the FM channel z Bluetooth General Features Small outline by LTCC substrate built in RF function and Resin mold Integrated top BPF for Bluetooth and FM radio Integrated RDS RBDS demodulator and decoder Bluet...

Page 47: ...SPI_MISO PCM1_SYNC_SPI_CS PCM1_CLK_SPI_CLK AUDIO_OUT_L AUDIO_OUT_R PIO_2_CLK_REQ_OUT PIO_3_CLK_REQ_IN O I D A R _ A N A _ D D V S D A P _ D D V ANT301 0 R302 I N D 0 2 3 R ANT302 1 5p C302 FL300 LFB212G45SG8A166 IN OUT GND1 GND2 4 1 3 P T 1u C301 1u C303 R301 100K 100K R305 100p C305 2 2u C375 27p C376 TP308 470 R343 TP313 TP311 C308 0 1u 2 2u C309 C304 2 2u 470n C377 2 2u C312 TP312 0 1u C378 VBT...

Page 48: ...Synthesiser Fully integrated synthesizer requires no external VCO varactor diode resonator or loop filter Compatible with crystals between 7 5 and 40MHz in multiples of 250KHz or an external clock Audio Single ended stereo analogue output 16 bit 48 kHz digital audio bit stream output Baseband and Software Internal 48Kbyte RAM allows full speed data transfer mixed voice and data and full piconet op...

Page 49: ...ining and service purposes 3 TECHNICAL BRIEF GS290 Operational Description Revision B LG Electronics 51 136 LGE Property Figure 19 Bluetooth FM Radio Functional Block Diagram XQFWLRQDO ORFN LDJUDP LJXUH XQFWLRQDO ORFN LDJUDP XQFWLRQDO ORFN LDJUDP GYDQFH QIRUPDWLRQ _ TUOM PP SLWFK 63 DWD 6KHHW ...

Page 50: ...ICAL BRIEF GS290 Operational Description Revision B LG Electronics 52 136 LGE Property 3 15 5pin u USB Interface connector Figure 20 u USB Connector Block Diagram Micro USB Integrated IC Multiplexing USB UART and audio on a single micro USB connector 5pin Micro USB connector USB UART Charger Earphone Mic MUIC VBUS D D ID GND ...

Page 51: ...o 28 volts There is an internal device detection method which uses the USB ID signal pin and the voltage on VBUS Each accessory will have a unique detection based on resistor values and voltage on VBUS The host microprocessor uses I2C to control the switch position as well as read the results of the accessory detection The MAX14526 will also detect USB chargers including dedicated chargers D D sho...

Page 52: ...agram Figure 22 GS290 RF part Block Diagram PAM SKY77344 FEM ANT Mobile Switch GS290 Operational Description Revision B LG Electronics 54 136 LGE Property 3 2 RF circuit RF Block Diagram Figure 22 GS290 RF part Block Diagram PAM SKY77344 FEM ANT Mobile Switch GS290 Operational Description Revision B LG Electronics 54 136 LGE Property 3 2 RF circuit RF Block Diagram Figure 22 GS290 RF part Block Di...

Page 53: ...oice and data transfer applications The transceiver provides an analog I Q baseband interface and consists of a direct conversion receiver and a quad band polar transmitter for GSM and EDGE with integrated PGA functionality Further on a completely integrated SD synthesizer with HSCSD and GPRS EDGE capability a digitally controlled reference oscillator with three outputs a fully integrated quad ban...

Page 54: ... 7 2 6 8 2 5 9 2 4 0 3 3 1 3 2 2 3 1 33 34 35 36 37 38 39 40 41 GND4 GND3 VDDMIX2V8 VDDTX2V8 TX2 TX1 VDDTX1V5 VBIAS FE2 A 1 E F X A 8 V 2 S A I B D D V B X 1 X R X B 1 X R 8 V 2 G I D D D V X 2 X R A D 2 X R K L C 2 D N G 5 V 1 G I D D D V X 3 X R 3 S Y S F 3 X R 2 S Y S F X 4 X R O X 4 X R X O X 5 V 1 A N L D D V GND1 FSYS1 VDDXO2V8 EN VDDVCO2V8 VCO_RC VDDRX1V5 VDDRX2V8 VRF_2V85 VRF_1V5 C511 220n...

Page 55: ...domain is performed by low high band quadrature direct down conversion mixers The baseband chain contains a LNB low noise buffer channel filter output buffer and DC offset compensation The 3rd order low pass filter is fully integrated and provides sufficient suppression of blocking signals as well as adjacent channel interferers and avoids anti aliasing through the baseband ADC The receive path is...

Page 56: ... I Q coordinates is converted to digital data stream and is subsequently transformed to polar coordinates by means of a CORDIC algorithm The resulting amplitude information is fed into a digital multiplier for power ramping and level control The ready processed amplitude signal is applied to a DAC followed by a low pass filter which reconstructs the analog amplitude information The phase signal fr...

Page 57: ... the phase detector and as clock frequency for all digital circuitry The divider in the feedback path of the synthesizer is carried out as a multi modulus divider MMD The loop filter is fully integrated and the loop bandwidth is about 100 kHz to allow the transfer of the phase modulation The loop bandwidth is automatically adjusted prior to each slot OLGA2 To overcome the statistical spread of the...

Page 58: ... 782 FL500 0 2 9 1 3 1 1 1 8 1 5 1 8 4 1 7 2 1 6 9 5 4 0 1 3 6 1 2 1 17 ANT 1 X R 0 5 8 M S G 2 X R 0 5 8 M S G 1 C V 1 X R 0 0 9 M S G 2 C V 2 X R 0 0 9 M S G 1 X R 0 0 8 1 M S G 1 D N G 2 X R 0 0 8 1 M S G 2 D N G 1 X R 0 0 9 1 M S G 3 D N G 2 X R 0 0 9 1 M S G 4 D N G 5 D N G X T 0 0 9 1 _ 0 0 8 1 M S G X T 0 0 9 _ 0 5 8 M S G 1 C N 2 C N 0 R510 VC1 VC2 L L GSM 1800 1900_ RX GSM850 900_RX VC2 F...

Page 59: ...on power supply pins to distribute current The InGaP die the silicon die nad the passive components are mounted on a multi layer laminate substrate The assembly is encapsulated with plastic overmold RF input and output ports are internally matched to 50ohm to reduce the number of external components Extremely low leakage current 2 5uA maximizes handset standby time Band select BS circuitry select ...

Page 60: ...tronics 62 136 LGE Property 3 22 PAM Schematic Figure 28 PAM schematic 22u C500 C509 47p 1K R505 SKY77344 U501 1 2 11 10 12 9 13 8 14 7 15 6 16 5 17 4 18 3 19 2 20 1 BS MODE ENABLE VDET VRAMP VBATT2 DCS_PCS_IN VBATT1 GSM_IN GND9 GND1 DCS_PCS_OUT GND2 GND8 GND3 GSM_OUT GND4 GND7 GND5 GND6 D N G P 1u C530 VBAT 27p C531 PA_LEVEL PA_MODE PA_BAND TXON_PA LBAND_PAM_IN HBAND_PAM_IN SKY77344 ...

Page 61: ...ion Revision B LG Electronics 63 136 LGE Property 4 Trouble shooting 4 1 Trouble shooting test setup Equipment setup Power on all of test equipment Connect PIF UNION JIG or dummy battery to the DUT for power up Connect mobile switch cable between Communication test set and DUT when you need to make a phone call Follow trouble shooting procedure 4 TROUBLE SHOOTING ...

Page 62: ...ry Voltage Need to over 3 35V Power On Key detection PWRON signal Outputs of LDOs from PMIC TP1 TP2 Q201 1 2 3 Q200 1 2 3 K 0 3 1 2 1 2 R 7 1 2 R K 5 7 K 0 0 1 2 2 2 R 10K R226 8 2 2 R K 2 RTC_2V11 KP_OUT 2 RPWRON KP_IN 6 RPWRON_EN END PWRON END_KEY_IN END_KEY_IN Power On R225 DNI 0 R203 0 R202 NC7WZ08L8X_F113 U203 3 4 2 5 1 6 8 7 A1 VCC B1 Y1 Y2 B2 GND A2 DNI C242 VIO_2V62 RTC_2V11 _RESET SPOWER_...

Page 63: ... E R V P T U O _ O N O M O N O M _ S S V N T U O _ O N O M F E R R F E R V K N I H S _ H S A L F N O _ H S A L F A P N O X T L L P V O I L L P D D V O I V 2 D S V 3 S M U P 2 S M U P 1 S M U P T R O P T U O N O _ R E W O P G O D W 1 F F O _ N O 2 F F O _ N O T U O _ F F O _ N O L T R C _ E C R U O S E R T N I _ C 2 I T A D _ C 2 I K L C _ C 2 I M W P _ 1 L B M W P _ 2 L B M W P _ 3 L B L R T N C _...

Page 64: ...ET signal Check 8 pin of U203 Check the all LDO s output Is it correct Is the 26MHz clock From X500 signal correct Replace main PCB Check the RPWRON replace Q201 Check solder U203 or replace it Check solder U202 or replace it Check solder X500 or replace it Check 1 pin of X500 Or Check 11 pin of U500 Yes Yes Yes Yes Yes No No No No Q201 TP1 Change Battery or Check Battery connector Battery Voltage...

Page 65: ... 2 Charger detect voltage 4 0 V 3 Charging time 2h 00m 4 Charging current 645 mA 5 CV voltage 4 2 V 6 Cutoff current 105 mA 7 Full charge indication current icon stop current 105 mA 8 Recharge voltage 4 16 V 4 2V 3 74V 3 73V 3 65V 3 65V 3 59V 3 59V 3 35V TP1 TP2 K 3 3 6 0 2 R BQ25040 U201 5 6 7 4 8 3 9 2 10 1 11 PGND IN BAT ISET _PG VSS1 CHG LDO VSS2 EN_SET IFULL 1u C210 1u C212 VIO_2V62 VIO_2V62 ...

Page 66: ...IO CN200 Is soldered Source pin of U201 4 8V Output pin of U201 4 2V Resolder the CN200 Battery voltage is over 3 4V Charge is operating properly The TA can be broken Change other TA then retest Check solder U201 or replace it Waiting until battery Voltage goes up to 3 4V Yes Yes Yes Yes Yes No No No No Battery thermistor value is about 10K Change the Battery retest No 5pin IO CN200 U401 TP2 Outpu...

Page 67: ...84E150R101FR FL401 0 1 5 6 4 7 3 8 2 9 1 INOUT_A1 INOUT_B1 INOUT_A2 INOUT_B2 INOUT_A3 INOUT_B3 INOUT_A4 INOUT_B4 1 G 2 G VA402 EVLC14S02050 TP408 TP409 TP410 VFM_2V9 ICVE10184E150R101FR FL402 0 1 5 6 4 7 3 8 2 9 1 INOUT_A1 INOUT_B1 INOUT_A2 INOUT_B2 INOUT_A3 INOUT_B3 INOUT_A4 INOUT_B4 1 G 2 G TP411 TP412 C420 1u TP413 VFM_2V9 CN402 GB042 40S H10 E3000 21 20 22 19 23 18 24 17 25 16 26 15 27 14 28 1...

Page 68: ...TROUBLE SHOOTING GS290 Operational Description Revision B LG Electronics 70 136 LGE Property START Is LCD FPCB normal Signal is normal on DIF Signal FL400 FL401 FL402 Assemble Replace LCD FPCB Check solder and repair Damaged filter Yes Yes No No Check LCD connector combination then LCD test with New LCD FL400 FL402 FL401 ...

Page 69: ... P 2 D N G P 3 D N G P 4 D N G P 5 D N G P 6 D N G P 7 D N G P 8 D N G P D0 PCLK D1 VSYNC D2 HSYNC D3 STANDBY D4 SCK D5 SDA D6 RESETB D7 MCLK 1 D N G D 2 D N G D 3 D N G D 1 D N G A 2 D N G A D D V D O I D D V D D V A 0 R403 C402 0 1u 0 1u C404 C407 1u 1u C412 C414 0 1u C415 56p C416 56p K 0 0 1 8 1 4 R VBAT CAM_2V85 CAM_1V5 56p C419 CAM_1V5 CAM_A_2V8 TP415 CAM_LDO_EN I2C2_SDA I2C2_SCL CIF_MCLK CI...

Page 70: ...ectronics 72 136 LGE Property START Replace New Camera module Working properly Assemble Yes Yes No Check camera connector 24pin main PCB connector combination then Camera test with equipped camera module Replace Camera module Yes Replace Main PCB Change CAM connector So follow Next sequences CAM connector 2 Clear PAD 3 Change CAM connector 1 Remove fault CAM connector with heat gun ...

Page 71: ...D1 A4 E1 4 B 1 B D D V D D V S L INM LSOUT INM LSOUT INL SET INR HPL BYPASS I2CVDD SDA SCL HPR D N G S S V P C N 1 C P 1 C D N G P C 220n C364 0 1u C363 220n C365 2 2u C319 100K R330 4 7u C313 BB_SND_R BB_SND_L EAR_P EAR_N I2C_SDA I2C_SCL SPK_RCV_P FM_AUDIO_L FM_AUDIO_R HSO_R HSO_L EAR_GND SPK_RCV_N AUDIO AMP SUB SYSTEM SIGNAL DISTRIBUTOR TP1 TP2 FSA2268UMX U306 9 4 6 3 5 2 7 1 8 10 1B0 1A 1B1 S1 ...

Page 72: ...nc All right reserved Only for training and service purposes LGE Internal Use Only 4 TROUBLE SHOOTING GS290 Operational Description Revision B LG Electronics 74 136 LGE Property Speaker contact Audio Subsystem C365 C364 C343 C342 TP1 TP2 ...

Page 73: ... purposes 4 TROUBLE SHOOTING GS290 Operational Description Revision B LG Electronics 75 136 LGE Property START Input Signal is Good C364 C365 Output Signal is High C343 C342 Replace Main Board Replace Audio AMP U304 Check Speaker s Combination with PCB Yes Connect Speaker completely No No Yes No Yes Assemble ...

Page 74: ...Mic Bias signal line FB305 FB306 L303 MIC101 TP1 TP1 TP2 TP2 GS290 Operational Description Revision B LG Electronics 76 136 LGE Property 4 7 Microphone trouble Check Points Microphone hole Mic Bias signal line FB305 FB306 L303 MIC101 TP1 TP1 TP2 TP2 C307 27p C314 1u VA300 C318 47p 100n L303 27p C322 VA302 MIC300 SPM0410LR5H QB 6 5 4 3 2 1 OUT G1 G2 G3 PWR G4 22n C373 22n C374 BLM15AG121PN1 FB305 B...

Page 75: ...g and service purposes 4 TROUBLE SHOOTING GS290 Operational Description Revision B LG Electronics 77 136 LGE Property START Replace MIC Yes No No Check microphone sound hole Replace PCB Yes No MIC Bias ON 2 5V When Call L303 Assemble MIC work properly Check mic Bias line MIC Siganl OK FB305 FB306 ...

Page 76: ...ational Description Revision B LG Electronics 78 136 LGE Property 4 8 Vibrator trouble Check Points Vibrator soldering IC is working correct Check PWM Signal TP1 TP2 TP3 TP4 C330 C331 TP3 TP4 TP1 TP2 R311 TPA6202A1ZQVR U303 B2 C1 A1 B1 B3 C2 A3 C3 IN VDD IN VO _SHUTDOWN VO BYPASS GND 100K R318 100K R310 5 2 3 R K 1 BU31TD2WNVX U302 5 3 2 4 1 VOUT VIN GND STBY D N G P 10n C316 51K R311 100n L301 4 ...

Page 77: ...ng and service purposes 4 TROUBLE SHOOTING GS290 Operational Description Revision B LG Electronics 79 136 LGE Property Assemble Replace Vibrator Check PWM Signal TP3 TP4 Check U302 Q300 replace it Check U302or replace it START Yes No Check Vibrator contact Yes TP1 VBAT of U302 and TP2 is High No ...

Page 78: ...BLE SHOOTING GS290 Operational Description Revision B LG Electronics 80 136 LGE Property 4 9 Keypad back light trouble Check Points Signal path is connected well TP1 LD401 LD404 LD405 2 0 4 R 0 2 1 3 1 4 R 0 2 1 2 2 4 R 0 2 1 LD403 1 2 4 R 0 2 1 6 0 4 R 0 2 1 VBAT LD400 LD402 EVL5M02200 VA405 6 1 4 R 0 2 1 KEY_BL KEY LED TP1 ...

Page 79: ...ning and service purposes 4 TROUBLE SHOOTING GS290 Operational Description Revision B LG Electronics 81 136 LGE Property START Check TP1 is 2 62V Check PMIC U202 Assemble Check R402 R406 R413 R41 6 R421 R422 LD400 LD405 Replace U202 Yes No No Check All of LEDs solder Replace main board Yes TP1 ...

Page 80: ...s LGE Internal Use Only 4 TROUBLE SHOOTING GS290 Operational Description Revision B LG Electronics 82 136 LGE Property 4 10 SIM uSD trouble SIM Check Points Power is working Socket soldering Proper SIM is used Pin C3 SIM_CLK C7 C1 C3 Check soldering all pin of socket Pin C1 2V9_SIM Pin C7 SIM_IO ...

Page 81: ...ctronics 83 136 LGE Property START 6 pins are soldered well Check Proper SIM Card Assemble Resolder pin Replace Main Board Yes Yes No Check All of SIM card voltage GS290 support 2 9V SIM only GCA26D 6S H18 E1500 J400 9 8 10 7 6 3 5 2 4 1 C1 C5 C2 C6 C3 C7 GND1 GND4 GND2 GND3 0 1u C401 VSIM_2V9 VSIM_2V9 R407 10K 22p C405 C409 DNI C410 22p VSIM_2V9 SIM_RST SIM_IO SIM_CLK SIM CONNECTOR ...

Page 82: ...service purposes LGE Internal Use Only 4 TROUBLE SHOOTING GS290 Operational Description Revision B LG Electronics 84 136 LGE Property uSD Check Points Power is working Socket soldering Card detect is working MMC DETECT PIN MMC_DETECT SIGNAL TP1 TP2 TP3 TP4 Card Deject Card insert ...

Page 83: ... and service purposes 4 TROUBLE SHOOTING GS290 Operational Description Revision B LG Electronics 85 136 LGE Property START TF socket pins are well soldered Check proper uSD Assemble Resolder it check data line TP 1 4 is 2 9V Signal Replace Main Board Yes Yes No Check Micro SD card voltage 2V8_VMME ...

Page 84: ... U400 Solder check Resolder U400 Resolder or Replace CN400 Yes No No Check Touch Signal If not replace front touch panel Yes Yes Replacd Main Board U400 CN400 Solder check START CN400 KQ13L 4R CN400 4 3 2 1 VBT_2V65 TSC2007IYZGR U400 D3 B3 D2 B2 D1 B1 C3 A3 C2 A2 C1 A1 AUX SDA VDD_REF A1 X X PENIRQ SCL A0 GND Y Y VA401 EVLC14S02050 EVLC14S02050 VA408 C425 0 1u EVLC14S02050 VA409 VA410 EVLC14S02050...

Page 85: ...ed Only for training and service purposes 4 TROUBLE SHOOTING LG Electronics 86 136 LGE Property U400 Solder check Resolder U400 Resolder or Replace CN400 Yes No No Check Touch Signal If not replace front touch panel Yes Yes Replacd Main Board U400 CN400 Solder check START CN400 ...

Page 86: ...rational Description Revision B LG Electronics 87 136 LGE Property 4 12 Trouble shooting of Receiver part Figure 1 Main PCB ྙ ྛ ྚG Checking Points ྜ START Check point ྙ DCXO Check point ྚ PLL Control Setup Test Equipment Cell Power 74dBm EGSM CH30 DCS CH699 Re Download S W CAL Check point ྜ RX I Q Signal Checking Flow Check point ྛ Mobile SW FEM ...

Page 87: ...k PLL Circuit TP1 C516 26MHz Figur2 DCXO DCXO Circuit Diagram Figure 3 DCXO Cicuit Waveform Is the waveform of TP1 C516 similar to Fig 4 TP1 C516 X500 Figure 4 DCXO Waveform Checking Points Checking Flow 26MHz X500 TSX 3225 2 1 3 4 GND2 HOT2 HOT1 GND1 U500 PMB6272 19 18 17 16 15 14 13 2 1 1 1 0 1 9 8 7 6 5 4 3 2 1 A X A B X B 8 V 2 G I D D D V A D K L C 5 V 1 G I D D D V 3 S Y S F 2 S Y S F O X X ...

Page 88: ...s Normal CLK Clock TP3 is Normal TP2 RF_DATA U601 TP2 TP3 TP1 RF_EN TP1 RF_CLK TP2 RF_DATA TP3 Figure 7 PLL Control Waveform 26MHz X500 TSX 3225 2 1 3 4 GND2 HOT2 HOT1 GND1 U500 PMB6272 20 19 18 17 16 15 14 13 1 2 2 1 2 2 1 1 3 2 0 1 4 2 9 5 2 8 6 2 7 7 2 6 8 2 5 9 2 4 0 3 3 1 3 2 2 3 1 33 34 35 36 37 38 39 40 41 GND4 GND3 VDDMIX2V8 VDDTX2V8 TX2 TX1 VDDTX1V5 VBIAS FE2 A 1 E F X A 8 V 2 S A I B D D...

Page 89: ...SW FEM Circuit Checking Points Figure 9 Mobile SW FEM Table 2 FEM RX Control Logic TP4 TP3 TP1 TP2 TP4_C503 VC1 G 22p C524 KMS 518_P SW500 G1 A C G2 100n L501 C539 DNI 100 R502 100 R504 C503 47p C508 47p LMSP43NA 782 FL500 0 2 9 1 3 1 1 1 8 1 5 1 8 4 1 7 2 1 6 9 5 4 0 1 3 6 1 2 1 17 ANT 1 X R 0 5 8 M S G 2 X R 0 5 8 M S G 1 C V 1 X R 0 0 9 M S G 2 C V 2 X R 0 0 9 M S G 1 X R 0 0 8 1 M S G 1 D N G ...

Page 90: ...n B LG Electronics 91 136 LGE Property Check TP1 of SW500 with RF Cable and TP2 of C524 TP1 Signal same as TP2 Replace Mobile SW SW500 Yes No Yes Mobile SW FEM is OK Check Antenna Replace U100 Control Signal is OK No Yes Check TP3 TP4 of FL500 Replace FEM FL500 TP5 8 Signal is OK No Yes Checking Flow Figure 10 Mobile SW R403 Figure 11 FEM Control Signals DCS PCS RX FE1 FE2 ...

Page 91: ...nd Circuit or Re Download S W and Cal TP2 IX TP3 Q TP4 QX TP1 I Checking Flow Figure 14 RX I Q Waveform 26MHz X500 TSX 3225 2 1 3 4 GND2 HOT2 HOT1 GND1 U500 PMB6272 20 19 18 17 16 15 14 13 1 2 2 1 2 2 1 1 3 2 0 1 4 2 9 5 2 8 6 2 7 7 2 6 8 2 5 9 2 4 0 3 3 1 3 2 2 3 1 33 34 35 36 37 38 39 40 41 GND4 GND3 VDDMIX2V8 VDDTX2V8 TX2 TX1 VDDTX1V5 VBIAS FE2 A 1 E F X A 8 V 2 S A I B D D V B X 1 X R X B 1 X ...

Page 92: ...ision B LG Electronics 93 136 LGE Property 4 13 Trouble shooting of Transmitter part Figure 1 Main PCB ྙ ྛ ྚ Checking Points ྜ ྜྷ ྞ Check point ྙ DCXO Check point ྚ PLL Control Setup Test Equipment Cell Power 74dBm EGSM CH30 DCS CH699 Check point ྛ TX I Q Signal Re Download S W RF CAL Check point ྜ Transceiver Check point ྜྷ PAM Control Checking Flow Check ྞ FEM Mobile SW ...

Page 93: ...RX Part 1 Checking DCXO Circuit 4 13 2 Checking PLL Control Signal See RX Part 2 Checking PLL Control Signal 4 13 3 Checking TX I Q Signals Replace Transceiver PMB6272 U500 Check TX I Q Signals TP1 TP4 Figure 17 TX I Q Circuit Yes No TX Part is OK Check Base Band Circuit or Re Download S W and Cal TP4 QX TP3 Q TP2 IX Signals are Normal Checking Points Figure 18 TX I Q I Q I Q U500 TX TP1 I TP2 IX ...

Page 94: ... Output MODE TP1 LBNAD_PAM_IN G TP2 HBNAD_PAM_IN G TP1 LBNAD_PAM_IN TP2 HBNAD_PAM_IN U500 PMB6272 20 19 18 17 16 15 14 13 1 2 2 1 2 2 1 1 3 2 0 1 4 2 9 5 2 8 6 2 7 7 2 6 8 2 5 9 2 4 0 3 3 1 3 2 2 3 1 33 34 35 36 37 38 39 40 41 GND4 GND3 VDDMIX2V8 VDDTX2V8 TX2 TX1 VDDTX1V5 VBIAS FE2 A 1 E F X A 8 V 2 S A I B D D V B X 1 X R X B 1 X R 8 V 2 G I D D D V X 2 X R A D 2 X R K L C 2 D N G 5 V 1 G I D D D...

Page 95: ...nal Description Revision B LG Electronics 96 136 LGE Property Signals are Normal Replace PMB6272 U500 Yes No Transceiver is OK See next page to check PAM Control Circuit Checking Flow Check Output Signal TP1 TP2 Figure 22 Transceiver Output GMSK LBAND_PAM_IN MODE GMSK TP1 LBAND_PAM_IN MODE 8PSK TP1 EGSM 30CH EGSM 30CH Figure 23 Transceiver Output 8PSK ...

Page 96: ...e 4 PAM Mode Operation HIGH Control Amp bias HIGH 8PSK HIGH Ramp Burst Control LOW GMSK TXON_PA PA_LEVEL MODE MODE Figure 24 PAM Control Signals Circuit TP1 PA LEVEL TP2 TXON PA TP3 PA_MODE TP3 PA_MODE TP2 TXON_PA TP1 PA_LEVEL GS290 Operational Description Revision B 4 13 5 Checking PAM Control Signals Checking Points Figure 25 Transceiver Output Table 4 PAM Mode Operation HIGH Control Amp bias HI...

Page 97: ...ion B LG Electronics 98 136 LGE Property Figure 26 GSMK Control Signal Figure 27 8PSK Control Signal Check Control Signals TP1 TP2 TP3 TP1 PA LEVEL TP2 TXON PA TP3 PA MODE TP1 PA LEVEL TP2 TXON PA TP3 PA MODE TP1 PA LEVEL TP2 TXON PA TP3 PA MODE Signals are Normal Check PMB8877 U100 Yes No PAM Control Signal is OK See next page to check FEM Mobile SW Circuit Checking Flow ...

Page 98: ... SW FEM Circuit Checking Points Figure 9 Mobile SW FEM Table 2 FEM TX Control Logic TP3 TP1 TP2 TP4_C503 22p C524 KMS 518_P SW500 G1 A C G2 100n L501 C539 DNI 100 R502 100 R504 C503 47p C508 47p LMSP43NA 782 FL500 0 2 9 1 3 1 1 1 8 1 5 1 8 4 1 7 2 1 6 9 5 4 0 1 3 6 1 2 1 17 ANT 1 X R 0 5 8 M S G 2 X R 0 5 8 M S G 1 C V 1 X R 0 0 9 M S G 2 C V 2 X R 0 0 9 M S G 1 X R 0 0 8 1 M S G 1 D N G 2 X R 0 0...

Page 99: ...G Electronics 100 136 LGE Property Check TP1 of SW500 with RF Cable and TP2 of C524 TP1 Signal same as TP2 Replace Mobile SW SW500 Yes No Yes Mobile SW FEM is OK Check Antenna Replace BB CHIP U100 Control Signal is OK No Yes Check TP3 TP4 of FL500 Replace FEM FL500 TP5 Signal is OK No Yes Checking Flow EGSM TX Figure 30 Mobile SW R403 Figure 31 FEM Control Signals TP3 VC2 TP4 VC1 ...

Page 100: ...ics Inc All right reserved Only for training and service purposes LGE Internal Use Only 5 DOWNLOAD S W UPGRADE GS290 Operational Description Revision B LG Electronics 109 142 LGE Property 9 Download S W upgrade 5 DOWNLOAD S W UPGRADE ...

Page 101: ... Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes 5 DOWNLOAD S W UPGRADE GS290 Operational Description Revision B LG Electronics 110 142 LGE Property ...

Page 102: ...yright 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 5 DOWNLOAD S W UPGRADE GS290 Operational Description Revision B LG Electronics 111 142 LGE Property ...

Page 103: ... Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes 5 DOWNLOAD S W UPGRADE GS290 Operational Description Revision B LG Electronics 112 142 LGE Property ...

Page 104: ...yright 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 5 DOWNLOAD S W UPGRADE GS290 Operational Description Revision B LG Electronics 113 142 LGE Property ...

Page 105: ... Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes 5 DOWNLOAD S W UPGRADE GS290 Operational Description Revision B LG Electronics 114 142 LGE Property ...

Page 106: ...yright 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 5 DOWNLOAD S W UPGRADE GS290 Operational Description Revision B LG Electronics 115 142 LGE Property ...

Page 107: ... Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes 5 DOWNLOAD S W UPGRADE GS290 Operational Description Revision B LG Electronics 116 142 LGE Property ...

Page 108: ...yright 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 5 DOWNLOAD S W UPGRADE GS290 Operational Description Revision B LG Electronics 117 142 LGE Property ...

Page 109: ... Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes 5 DOWNLOAD S W UPGRADE GS290 Operational Description Revision B LG Electronics 118 142 LGE Property ...

Page 110: ...yright 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 5 DOWNLOAD S W UPGRADE GS290 Operational Description Revision B LG Electronics 119 142 LGE Property ...

Page 111: ... reserved Only for training and service purposes 6 BLOCK DIAGRAM 6 BLOCK DIAGRAM LG Electronics 19 136 LGE Property 3 Technical brief 3 1 GS290 Functional Block diagram The functional component arrangement is mentioned below diagram Figure 1 GS290 Functional block diagram ...

Page 112: ...2 2 A P P E 1 N C I M 1 P C I M 2 N C I M 2 P C I M 1 N X U A 1 P X U A 2 N X U A 2 P X U A D N G X U A P C I M V N C I M V 0 K L C _ 1 S 2 I 1 K L C _ 1 S 2 I X R _ 1 S 2 I X T _ 1 S 2 I 0 A W _ 1 S 2 I 0 K L C _ 2 S 2 I 1 K L C _ 2 S 2 I X R _ 2 S 2 I X T _ 2 S 2 I 0 A W _ 2 S 2 I 1 A W _ 2 S 2 I L C S _ 1 C 2 I A D S _ 1 C 2 I T N I _ M P L C S _ 2 C 2 I A D S _ 2 C 2 I T S R M _ D X R _ 1 F I ...

Page 113: ... _ D D V 1 N I _ E S N E S 2 N I _ E S N E S F E R _ D D V D E L V 1 D S V RCV VPIN VMIN VMME D VDDMME D VDDRF2 RESET_N VRF2 RESET2_N SLEEP1_N VRF3 SLEEP2_N VDDRF13_AFC VAUDIOA VRF1 VDDAUDIOA VVIB VDDSIMVIB VDDAUDIOB VAUDIOB VSIM VAUX VAFC VDDAUX VRTC SU1_GATE SU1_GND VDDUMTS SU1_FB VUMTS SU1_ISENSE VDDSD1 VDDSD2 SD1_FB SD2_FB SD1_FBL SD2_FBL 1 S S V 2 S S V 3 S S V 4 S S V 5 S S V 6 S S V 7 S S V...

Page 114: ...3 R M 1 VA309 VIO_2V62 C314 1u 120p C315 2 2u C381 VA300 10n C316 51K R311 100n L301 EDTY0008606 D300 2 0 3 L n 0 0 1 C318 47p 2 2u C362 BLM15BD182SN1D FB303 1800 100n L303 0 1u C361 27p C322 220n C347 2 2 9 4 3 R 220n C321 4 1 3 R K 1 51K R315 Q300 KRC402E 2 1 C B E GND IN OUT 22n C324 47 R319 1u C325 VA302 BLM15BD182SN1D FB308 1800 C330 1u C331 1u 47p C332 BLM15BD182SN1D FB309 1800 VBAT VBAT VIO...

Page 115: ...1u VMME_2V9 C403 1u AAT3169IFO T1 U401 2 15 1 10 14 13 3 12 11 9 6 8 5 7 4 C1 C2 C1 C2 OUTCP IN D1 D2 EN_SET D3 D4 GND D5 PGND D6 VA402 EVLC14S02050 0 1u C404 R407 10K 22p C405 R414 680 C406 1u K 0 0 1 8 0 4 R C407 1u 1u C408 C409 DNI C410 22p 9 0 4 R K 7 4 K 7 4 0 1 4 R 1 1 4 R K 7 4 1u C411 1u C412 LD400 VIO_2V62 R412 680 EVLC5S0250 VA416 VSIM_2V9 C414 0 1u LD402 EVL5M02200 VA405 C415 56p C416 5...

Page 116: ...506 4 7n 1n C516 C517 47n 0 1u C520 1K R505 SKY77344 U501 1 2 11 10 12 9 13 8 14 7 15 6 16 5 17 4 18 3 19 2 20 1 BS MODE ENABLE VDET VRAMP VBATT2 DCS_PCS_IN VBATT1 GSM_IN GND9 GND1 DCS_PCS_OUT GND2 GND8 GND3 GSM_OUT GND4 GND7 GND5 GND6 D N G P DNI C519 0 1u C535 0 1 6 0 5 R VRF_2V85 4 7n C521 10 R507 VRF_2V85 VRF_1V5 VRF_2V85 220n C522 C523 DNI ANT501 2 2p C525 C526 4 7p C527 4 7p ANT502 0 1u C506...

Page 117: ...Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes 8 7 6 5 4 3 2 1 B C D E F A B C D E F A 8 7 6 5 4 3 2 1 CN100 3 2 1 KB100 KP_OUT 0 KP_OUT 0 KP_IN 3 KP_IN 3 F_KEY_CAM ...

Page 118: ...Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes 8 7 6 5 4 3 2 1 B C D E F A B C D E F A 8 7 6 5 4 3 2 1 CN100 3 2 1 KB100 KP_IN 5 KP_IN 5 KP_OUT 0 KP_OUT 0 F_KEY_HOLD 7 CIRCUIT DIAGRAM ...

Page 119: ...yright 2010 LG Electronics Inc All right reserved Only for training and service purposes 8 7 6 5 4 3 2 1 B C D E F A B C D E F A 8 7 6 5 4 3 2 1 CN100 4 3 2 1 KB100 KB101 KP_OUT 3 KP_OUT 3 KP_IN 3 KP_IN 3 KP_OUT 2 KP_OUT 2 VOL UP F_KEY_VOL VOL DOWN ...

Page 120: ...nc All right reserved Only for training and service purposes LGE Internal Use Only 8 BGA Pin Map 8 BGA Pin Map GS290 Operational Description Revision B LG Electronics 110 136 LGE Property 8 BGA Pin Map U100 PMB8877 EUSY0322801 Revision B ...

Page 121: ... Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes 8 BGA Pin Map GS290 Operational Description Revision B LG Electronics 111 136 LGE Property U101 K522H1HACB B060 EUSY0388101 NC Not Use ...

Page 122: ... Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 8 BGA Pin Map GS290 Operational Description Revision B LG Electronics 112 136 LGE Property U202 PMB6821 EUSY0323901 Revision B ...

Page 123: ...ctronics Inc All right reserved Only for training and service purposes 8 BGA Pin Map GS290 Operational Description Revision B LG Electronics 113 136 LGE Property U200 MAX14526 EUSY0371201 GS290 Operational Description Revisi YWWOth X Y SGl z WZ XYWXP ...

Page 124: ...lectronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 8 BGA Pin Map GS290 Operational Description Revision B LG Electronics 114 136 LGE Property U304 LM49151TLX EUSY0390501 USE ALL PINS ...

Page 125: ...g and service purposes 8 BGA Pin Map LG Electronics 115 136 LGE Property U301 BC7820 EUSY0394501 GS290 Operational Description Revision B LG Electronics 115 136 LGE Property U301 BC7820 EUSY0394501 GS290 Operational Description Revision B LG Electronics 106 142 LGE Property ZWXOij _YWSGl z WZ WXP ...

Page 126: ...ght reserved Only for training and service purposes LGE Internal Use Only 8 BGA Pin Map GS290 Operational Description Revision B LG Electronics 116 136 LGE Property U500 PMB6821 EUSY0323901 LG Electronics 107 142 LGE Prop WWOwti _YXSGl z WZYZ WXP ...

Page 127: ...ght reserved Only for training and service purposes 8 BGA Pin Map GS290 Operational Description Revision B LG Electronics 117 136 LGE Property U501 SKY77344 SMPY0017601 GS290 Operational Description Revision B LG Electronics 108 142 LGE Property WXOzr Z SGztw WWX WXP G ...

Page 128: ...g and service purposes LD400 R 41 3 2 0 4 B K L D 4 0 3 0 0 4 N C R416 KB401 LD405 R422 L D 4 0 4 MIC300 VA300 R 40 2 VA302 7 0 3 A V VA405 4 0 3 A V 9 0 3 A V 6 0 3 A V LD401 R421 KB400 LD402 R406 GS290_MAIN_1 0_PLACE_TOP CN400 Touch Conn no Touch sensing MIC300 Microphone no far end voice no voice recording ...

Page 129: ...5C 025C 225C R500 105TNA C209 C222 C227 303BF 631C 002D 001X R506 C358 903L C306 R221 002C 502C 002L 901PT 521C 301C 005TP R109 905R 501PT 001PT C120 C106 R114 C122 C121 Q200 005X C511 705R C537 C538 202U 531C 901C C128 C138 C117 C111 R405 114R C322 C307 R204 R215 C217 403BF 433R C236 C241 202PT TP200 101PT C146 541C R105 001U TP415 TP408 TP111 R100 R111 R106 C112 712R 714R 212R 904R 114C 014R C31...

Page 130: ... 131 9 PCB LAYOUT LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes CN100 GS290_F_SK_CAM_SPKY0081401 1 1 KB100 ...

Page 131: ...9 PCB LAYOUT 132 LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes GS290_F_SK_HOLD_SPKY0081101 1 1 CN100 KB100 ...

Page 132: ... 133 9 PCB LAYOUT LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes GS290_F_SK_VOL_SPKY0077101 1 0 CN100 KB100 KB101 ...

Page 133: ... 134 LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes ...

Page 134: ... service purposes LGE Internal Use Only 10 ENGINEERING MODE 10 ENGINEERING MODE GS290 Operational Description Revision B LG Electronics 124 136 LGE Property 10 RF Calibration 10 1 Test Equipment Setup 10 2 Calibration Step 2 1 Turn on the Phone 2 2 Execute HK_34 exe 4 00 V 0 000 A ...

Page 135: ... Electronics Inc All right reserved Only for training and service purposes 10 ENGINEERING MODE GS290 Operational Description Revision B LG Electronics 125 136 LGE Property 2 3 Click SETTING Menu 2 4 Setup Ezlooks menu such as the following figure ...

Page 136: ... GS290 Operational Description Revision B LG Electronics 126 136 LGE Property 2 5 Setup Line System menu such as the following figure 2 6 Setup Logic operation such as the following figure Adjust number of times PWR Power supply CELL Call Test Equipment Setup UART port Operation Mode 1 By Pass not control by GPIB 2 Normal control by GPIB ...

Page 137: ...ectronics Inc All right reserved Only for training and service purposes 10 ENGINEERING MODE GS290 Operational Description Revision B LG Electronics 127 136 LGE Property 2 7 Select MODEL 2 8 Click START for RF calibration 2 9 RF Calibration finishes ...

Page 138: ...0 Calibration data will be saved to the following folder Notices 1 The state of Phone is test mode during the CALIBRATION 2 Calibration program automatically changes either normal mode or ptest mode 3 RF Calibration steps as follow TX Channel compensation EGSM GSM850 DCS PCS EDGE EGSM EDGE GSM850 EDGE DCS EDGE PCS RX Channel compensation EGSM GSM850 DCS PCS 4 Phone Operation Mode z Gm aG V V G G P...

Page 139: ...aining and service purposes 11 STAND ALONE TEST 11 STAND ALONE TEST GS290 Operational Description Revision B LG Electronics 129 136 LGE Property 11 Stand alone Test 11 1 Test Program Setting G ྙG Set COM Port ྚG Check PC Baud rate ྛG Confirm EEPROM Delta file prefix name G G G G G G G G ྙ ԙ Ԛ ...

Page 140: ...served Only for training and service purposes LGE Internal Use Only 11 STAND ALONE TEST GS290 Operational Description Revision B LG Electronics 130 136 LGE Property ྜG Click Update Info for communicating Phone and Test Program Connected Not Connected ԛ ...

Page 141: ...urposes 11 STAND ALONE TEST GS290 Operational Description Revision B LG Electronics 131 136 LGE Property ྜྷG For the purpose of the Standalone Test Change the Phone to ptest mode and then Click the Reset bar ྞG Select Non signaling in the Quick Bar menu Then Standalone Test setup is finished ԝ Ԝ Change ptest mood ...

Page 142: ...ved Only for training and service purposes LGE Internal Use Only 11 STAND ALONE TEST GS290 Operational Description Revision B LG Electronics 132 136 LGE Property 11 2 Tx Test G ྙG Click Non signaling mode bar and then confirm OK text in the command line ԘG ...

Page 143: ...vice purposes 11 STAND ALONE TEST GS290 Operational Description Revision B LG Electronics 133 136 LGE Property ྚG Put the number of TX Channel in the ARFCN ྛG Select Tx in the RF mode menu and PCL in the PA Level menu ྜG Finally Click Write All bar and try the efficiency test of Phone 11 3 Rx Test ԙG ԚG ԛ ...

Page 144: ...al Use Only 11 STAND ALONE TEST GS290 Operational Description Revision B G ྙG Put the number of RX Channel in the ARFCN ྚG Select Rx in the RF mode menu ྛG Finally Click Write All bar and try the efficiency test of Phone G G G G G G G G G G G G G G G ԚG ԘG ԙG LG Electronics 133 136 LGE Property 11 3 Rx Test ...

Page 145: ...ly for training and service purposes GS290 Operational Description Revision B LG Electronics 135 136 LGE Property ྜG The Phone must be changed normal mode after finishing Test ྜྷG Change the Phone to normal mode and then Click the Reset bar ԛ ԜG Change normal mode 11 STAND ALONE TEST ...

Page 146: ...ing and service purposes 1 5 6 7 15 16 17 18 25 37 38 39 40 41 42 43 44 45 46 47 48 49 56 58 57 55 54 53 52 51 50 26 27 28 29 30 31 32 33 35 34 36 22 23 24 21 20 19 14 13 12 11 10 3 9 8 4 2 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 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 ...

Page 147: ... 148 LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes A B C E D F G I J J I H G F E D C B A H ASS Y EXPLODED VIEW ...

Page 148: ... MPBJ00 PAD MOTOR MPBJ0071301 COMPLEX empty WITHOUT COLOR 31 4 MPBN00 PAD SPEAKER MPBN0081601 COMPLEX empty WITHOUT COLOR 35 4 MPBT00 PAD CAMERA MPBT0087101 COMPLEX empty WITHOUT COLOR 34 4 MPBU00 PAD CONNECTOR MPBU0088701 COMPLEX empty WITHOUT COLOR 36 4 MPBZ00 PAD MPBZ0253801 COMPLEX empty WITHOUT COLOR 39 4 MPBZ01 PAD MPBZ0270901 COMPLEX empty WITHOUT COLOR 48 4 MPBZ02 PAD MPBZ0283601 COMPLEX e...

Page 149: ...04A BLACK 3 5 MDAY00 DECO MDAY0049801 MOLD PC LUPOY SC 1004A BLACK 5 5 MDAY01 DECO MDAY0049701 MOLD PC LUPOY SC 1004A BLACK 7 5 MGAZ00 GASKET MGAZ0085701 COMPLEX empty WITHOUT COLOR 16 5 MICC00 INSERT FRONT UPPER MICC0010001 D2 2 L2 0 KURL 45 GOLD 9 5 MPBG00 PAD LCD MPBG0102901 COMPLEX empty WITHOUT COLOR 12 5 MPBJ00 PAD MOTOR MPBJ0071201 COMPLEX empty WITHOUT COLOR 14 5 MPBN00 PAD SPEAKER MPBN007...

Page 150: ...EL APPROVAL MLAA0062303 COMPLEX empty WITHOUT COLOR 5 ACKA00 CAN ASSY SHIELD ACKA0022301 WITHOUT COLOR 6 MCBA00 CAN SHIELD MCBA0066101 PRESS STS WITHOUT COLOR 21 6 MGAZ00 GASKET MGAZ0093101 COMPLEX empty WITHOUT COLOR 25 6 MIDZ00 INSULATOR MIDZ0241001 COMPLEX empty WITHOUT COLOR 23 6 MLAB LABEL A S MLAB0001102 C2000 USASV DIA 4 0 WHITE 22 6 MPBZ00 PAD MPBZ0282701 COMPLEX empty AIRY BLUE 24 5 ADCA0...

Page 151: ...SPKY01 PCB SIDEKEY SPKY0081101 POLYI 0 2 mm DOUBLE 5 SPKY02 PCB SIDEKEY SPKY0081401 POLYI 0 75 mm MULTI 2 5 SUSY00 SPEAKER SUSY0028902 ASSY 8 ohm 91 dB 1812 mm 3 0T 15mm empty 5 SVCY00 CAMERA SVCY0020301 CMOS MEGA 2M FF SS LSI 1 5 7x7x4 1 Socket 4 SAFF00 PCB ASSY MAIN SMT SAFF0246201 5 SAFC00 PCB ASSY MAIN SMT BOTTOM SAFC0130901 6 C100 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 6 C1...

Page 152: ...K X7R HD 1005 R TP 6 C123 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 6 C124 CAP CERAMIC CHIP ECCH0000182 0 1 uF 10V K X5R HD 1005 R TP 6 C125 CAP CERAMIC CHIP ECCH0000115 22 pF 50V J NP0 TC 1005 R TP 6 C126 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 6 C127 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 6 C128 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 100...

Page 153: ...00 pF 6 3V M X5R TC 1608 R TP empty empty empty empty empty empty 0 8 mm 6 C209 CAP CERAMIC CHIP ECCH0005603 2 2 uF 10V K X5R TC 1608 R TP 6 C210 CAP CHIP MAKER ECZH0001215 1 uF 10V K X5R TC 1005 R TP 6 C211 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 6 C212 CAP CHIP MAKER ECZH0003503 1 uF 25V K X5R HD 1608 R TP 6 C214 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 6 C215 C...

Page 154: ...IP ECCH0000198 2 2 uF 6 3V M X5R TC 1005 R TP 6 C241 CAP CHIP MAKER ECZH0001215 1 uF 10V K X5R TC 1005 R TP 6 C301 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 6 C302 CAP CHIP MAKER ECZH0000822 1 5 pF 50V C NP0 TC 1005 R TP 6 C303 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 6 C304 CAP CERAMIC CHIP ECCH0000198 2 2 uF 6 3V M X5R TC 1005 R TP 6 C305 CAP CHIP MAKER ECZH00008...

Page 155: ...V K X5R TC 1608 R TP 6 C338 CAP CERAMIC CHIP ECCH0000120 39 pF 50V J NP0 TC 1005 R TP 6 C339 RES CHIP MAKER ERHZ0000401 0 ohm 1 16W J 1005 R TP 6 C341 CAP CERAMIC CHIP ECCH0000115 22 pF 50V J NP0 TC 1005 R TP 6 C342 CAP CERAMIC CHIP ECCH0000117 27 pF 50V J NP0 TC 1005 R TP 6 C343 CAP CERAMIC CHIP ECCH0000117 27 pF 50V J NP0 TC 1005 R TP 6 C344 CAP CERAMIC CHIP ECCH0000110 10 pF 50V D NP0 TC 1005 R...

Page 156: ... 10V K X7R HD 1005 R TP 6 C379 CAP CERAMIC CHIP ECCH0000198 2 2 uF 6 3V M X5R TC 1005 R TP 6 C381 CAP CERAMIC CHIP ECCH0000198 2 2 uF 6 3V M X5R TC 1005 R TP 6 C382 CAP CERAMIC CHIP ECCH0000112 15 pF 50V J NP0 TC 1005 R TP 6 C384 CAP CERAMIC CHIP ECCH0000115 22 pF 50V J NP0 TC 1005 R TP 6 C401 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 6 C402 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X...

Page 157: ...C510 CAP CHIP MAKER ECZH0000802 1 pF 50V C NP0 TC 1005 R TP 6 C511 CAP CHIP MAKER ECZH0001216 220 nF 10V K X5R TC 1005 R TP 6 C512 CAP CERAMIC CHIP ECCH0000175 2 7 pF 50V B NP0 TC 1005 R TP 6 C513 CAP CERAMIC CHIP ECCH0000175 2 7 pF 50V B NP0 TC 1005 R TP 6 C514 CAP CHIP MAKER ECZH0000839 4 7 pF 50V C NP0 TC 1005 R TP 6 C515 CAP CHIP MAKER ECZH0000839 4 7 pF 50V C NP0 TC 1005 R TP 6 C516 CAP CERAM...

Page 158: ...08 6 FB300 RES CHIP MAKER ERHZ0000249 22 ohm 1 16W F 1005 R TP 6 FB303 FILTER BEAD CHIP SFBH0008105 1800 ohm 1005 Chip bead 1800ohm empty R TP 6 FB304 FILTER BEAD CHIP SFBH0008105 1800 ohm 1005 Chip bead 1800ohm empty R TP 6 FB305 FILTER BEAD CHIP SFBH0007101 120 ohm 1005 Ferrite Bead 6 FB306 FILTER BEAD CHIP SFBH0007101 120 ohm 1005 Ferrite Bead 6 FB307 FILTER BEAD CHIP SFBH0008105 1800 ohm 1005 ...

Page 159: ... 6 L502 INDUCTOR CHIP ELCH0004714 18 nH J 1005 R TP 6 L503 INDUCTOR CHIP ELCH0003814 5 1 nH S 1005 R TP 5 1nH 1005 6 L504 CAP CERAMIC CHIP ECCH0000901 2 2 pF 50V C NP0 TC 1005 R TP 6 L505 INDUCTOR CHIP ELCH0004710 15 nH J 1005 R TP 6 L506 INDUCTOR CHIP ELCH0004704 4 7 nH S 1005 R TP 6 M300 MODULE ETC SMZY0023501 3 8 Backup Capacitor 0 03F Module Assembly 6 PT500 THERMISTOR SETY0006301 NTC 10000 oh...

Page 160: ...30 ohm 1 16W J 1005 R TP 6 R211 RES CHIP MAKER ERHZ0000467 330 Kohm 1 16W J 1005 R TP 6 R212 RES CHIP ERHY0000283 130K ohm 1 16W J 1005 R TP 6 R214 RES CHIP MAKER ERHZ0000454 27 Kohm 1 16W J 1005 R TP 6 R215 RES CHIP MAKER ERHZ0000204 100 Kohm 1 16W F 1005 R TP 6 R216 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP 6 R217 RES CHIP ERHY0000277 75K ohm 1 16W J 1005 R TP 6 R218 RES CHIP MAKER E...

Page 161: ...0000439 200 Kohm 1 16W J 1005 R TP 6 R324 RES CHIP MAKER ERHZ0000443 2200 ohm 1 16W J 1005 R TP 6 R325 RES CHIP MAKER ERHZ0000404 1 Kohm 1 16W J 1005 R TP 6 R330 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP 6 R333 RES CHIP ERHY0000254 4 7K ohm 1 16W J 1005 R TP 6 R334 RES CHIP MAKER ERHZ0000405 10 Kohm 1 16W J 1005 R TP 6 R341 RES CHIP MAKER ERHZ0000429 180 ohm 1 16W J 1005 R TP 6 R342 RE...

Page 162: ...P ELCH0003831 1 nH S 1005 R TP MLCI 6 R502 RES CHIP ERHY0003301 100 ohm 1 16W J 1005 R TP 6 R504 RES CHIP ERHY0003301 100 ohm 1 16W J 1005 R TP 6 R505 RES CHIP MAKER ERHZ0000404 1 Kohm 1 16W J 1005 R TP 6 R506 RES CHIP MAKER ERHZ0000206 10 ohm 1 16W F 1005 R TP 6 R507 RES CHIP MAKER ERHZ0000206 10 ohm 1 16W F 1005 R TP 6 R508 RES CHIP ERHY0000185 820 ohm 1 16W F 1005 R TP 6 R509 RES CHIP MAKER ERH...

Page 163: ...6 U500 IC EUSY0274801 VQFN 40 PIN R TP GPRS EDGE TRANSCEIVER 6 U501 PAM SMPY0017601 dBm A dBc dB 5x5 SMD IFX Linear EDGE R TP R TP 16 6 VA303 VARISTOR SEVY0005201 5 5 V SMD 1005 50pF 6 VA305 VARISTOR SEVY0005201 5 5 V SMD 1005 50pF 6 VA308 DIODE TVS EDTY0008606 DFN 2 7 82 V 150 mW R TP PB FREE 6 VA401 VARISTOR SEVY0001001 14 V SMD 50pF 1005 6 VA402 VARISTOR SEVY0001001 14 V SMD 50pF 1005 6 VA406 V...

Page 164: ...OPHONE SUMY0010610 UNIT 42 dB 4 72 3 76 1 25 mems TDMA Improve OMNI empty SMD 6 R402 RES CHIP MAKER ERHZ0000411 120 ohm 1 16W J 1005 R TP 6 R406 RES CHIP MAKER ERHZ0000411 120 ohm 1 16W J 1005 R TP 6 R413 RES CHIP MAKER ERHZ0000411 120 ohm 1 16W J 1005 R TP 6 R416 RES CHIP MAKER ERHZ0000411 120 ohm 1 16W J 1005 R TP 6 R421 RES CHIP MAKER ERHZ0000411 120 ohm 1 16W J 1005 R TP 6 R422 RES CHIP MAKER ...

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