LG KP260 Service Manual
  1. Manuals
  2. Brands
  3. LG Manuals
  4. Cell Phone
  5. KP260
  6. Service manual

LG KP260 Service Manual

Hide thumbs Also See for KP260:
Table of Contents

Advertisement

Quick Links

Download this manual
Internal Use Only
Service Manual
KP260/265
Date: August, 2008 / Issue 1.0

Advertisement

Table of Contents
loading

Related Manuals for LG KP260

Summary of Contents for LG KP260

  • Page 1 Internal Use Only Service Manual KP260/265 Date: August, 2008 / Issue 1.0...

  • Page 2: Table Of Contents

    4.11 SIM Card Interface Trouble....70 13.3 Accessory ..........148 4.12 Earphone Trouble ........72 4.13 KEY backlight Trouble ......74 4.14 Receiver Trouble........76 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 3 - Only for training and service purposes...
  • Page 3 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 4 - Only for training and service purposes...

  • Page 4: Introduction

    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. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 5 -...
  • Page 5 • When returning system boards or parts like EEPROM to the factory, use the protective package as described. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 6 - Only for training and service purposes...

  • Page 6: Abbreviations

    International Portable User Identity Intermediate Frequency Liquid Crystal Display Low Drop Output Light Emitting Diode OPLL Offset Phase Locked Loop Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 7 - Only for training and service purposes...
  • Page 7 Time Division Multiple Access UART Universal Asynchronous Receiver/Transmitter Voltage Controlled Oscillator VCTCXO Voltage Control Temperature Compensated Crystal Oscillator Wireless Application Protocol LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 8 - Only for training and service purposes...

  • Page 8: Performance

    Microphone Speaker/Receiver Receiver 11X 07, Speaker : 12 X 18 Travel Adapter MIDI 40poly SW MIDI Camera 1.3M Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 9 - Only for training and service purposes...

  • Page 9: Technical Specification (Kp265C,D)

    8 dBm 22 dBm 6 dBm 20 dBm 4 dBm 18 dBm 2 dBm 16 dBm 0 dBm LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 10 - Only for training and service purposes...
  • Page 10 3,000~ <6,000 6,000 GSM850/EGSM900 Offset from Carrier (kHz) Max. (dBm) Output RF Spectrum (due to switching transient) 1,200 1,800 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 11 - Only for training and service purposes...
  • Page 11 2,000 3,000 3,400 4,000 -4 3 dB Frequency (Hz) Max.(dB) Min.(dB) Receiving Response (Type 3.2) 1,000 3,400 4,000 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 12 - Only for training and service purposes...
  • Page 12 At least 55 dB under below conditions: Ringer Volume(TBD) 1. Ringer set as ringer. 2. Test distance set as 1 m. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 13 - Only for training and service purposes...
  • Page 13 Battery Type Back-up Battery : Lithium, 1mAh Input: 100 ~ 240 V, 50/60Hz Travel Charger Output: 5.6V, 400mA LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 14 - Only for training and service purposes...

  • Page 14: Technical Brief

    DCS1800 and PCS1900 bands. Both PA blocks share common power supply pins to distribute current. Figure 3.1 Functional Block Diagram Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 15 - Only for training and service purposes...
  • Page 15 3. TECHNICAL BRIEF Figure 3.2 Pad configuration (Top view) and case marking Table 3.1 Pad description LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 16 - Only for training and service purposes...

  • Page 16: Fem(Lmsp43Qa-538, Fl500)

    ANT_SW2 GSM850_EGSM TX DCS_PCS TX GSM850 RX EGSM900 RX DCS1800 RX PCS1900 RX Table 3.2 Mode Control logic Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 17 - Only for training and service purposes...

  • Page 17: Transceiver (Ad6548, U502)

    IC. The interface features low-voltage digital interface buffers compatible with logic levels from 1.6V to 2.9V. Figure 3.3 AD6548 Block Diagram LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 18 - Only for training and service purposes...
  • Page 18 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 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only...

  • Page 19: 26 Mhz Clock (Crystal, X500)

    26MHz crystal. Dedicated control software ensures excellent frequency stability under all circumstances. 26MHz X500 DSX321G-26M Figure 3.4 CRYSTAL CIRCUIT DIAGRAM LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 20 - Only for training and service purposes...

  • Page 20: Bt Module With Integrated Fm Tuner(Bc5-Fm, U500)

    With the on-chip CSR Bluetooth software stack, it provides a fully compliant Bluetooth system to v2.1 + EDR of the specification for data and voice communications. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 21 -...

  • Page 21: Baseband Processor (Ad6726, U103)

    • GSM 900/850 power classes 4 and 5, • DCS 1800 power classes 1 and 2, and • PCS 1900 power classes 1 and 2 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 22 - Only for training and service purposes...
  • Page 22 3. TECHNICAL BRIEF Figure 3.5 SYSTEM INTERCONECTION OF AD6726 EXTERNAL INTERFACE Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 23 - Only for training and service purposes...
  • Page 23 LCD command or data. 2V8_MM 2.8V is supplied to LCD driver IC. Table 3.5.B LCD CONTRON SIGNALS DISCRIPTION LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 24 - Only for training and service purposes...
  • Page 24 S_DATA (GPO 20) Serial Data to PLL S_CLK (GPO 21) Clock to PLL Table 3.5.C RF CONTROL SIGNALS DESCRIPTION Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 25 - Only for training and service purposes...
  • Page 25 R315 SIM_RST SIM_DATA SIM_CLK GND2 GND1 C326 C327 C328 C329 220n 1000p Figure 3.5.D2 SIM Interface of AD6726 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 26 - Only for training and service purposes...
  • Page 26 - 2V75_VVCXO: supplies the voltage controlled crystal oscillator ( 2.75 V, 10 mA) - VUSB : supplies USB interface circuitry( 3.2V, 20mA) - 1V8_VGP : supplies VDD_IO1 & VDD_IO4 of MMP(1.8V, 40mA) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 27 -...

  • Page 27: Display And Interface

    FL302 ICVE10184E150R101FR VSYNCOUT F_VSYNCOUT INOUT_A1 INOUT_B1 nLCD_WR F_nLCD_WR INOUT_A2 INOUT_B2 nLCD_RS F_nLCD_RS INOUT_A3 INOUT_B3 nLCD_CS F_nLCD_CS INOUT_A4 INOUT_B4 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 28 - Only for training and service purposes...
  • Page 28 F_VSYNCOUT MLED1 MLED2 F_DATA00 F_DATA01 LCD_RESET F_DATA02 LCD_ID F_DATA03 F_DATA04 F_DATA05 F_DATA06 F_DATA07 Figure 3.6 LCD INTERFACE CIRCUIT Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 29 - Only for training and service purposes...

  • Page 29: Camera Interface(Ait716 , U400)

    Camera module is controlled by AIT716. Interface is done by I2C and YCbCr format. I2C is a control signal and YCbCr is real data interface signal. Figure 3.7.1 AIT716 BLOCK DIAGRAM LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 30 - Only for training and service purposes...
  • Page 30 3. TECHNICAL BRIEF Figure 3.7.2 SENSOR CHIP BLOCK DIAGRAM Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 31 - Only for training and service purposes...
  • Page 31 MM_R PI2S_WS nCAM_RST PI2S_SDO PUSBDN MM_USBDM PI2S_MCLK PUSBDP MM_USBDP 1V8_CAMIO R412 4.7K R413 4.7K Figure 3.7.3 AIT716 CIRCUIT LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 32 - Only for training and service purposes...

  • Page 32: Keypad Switches And Scanning

    UKEY_ROW4 VA212 R227 KEY_COL0 R228 KEY_COL1 R229 KEY_COL2 KEY_COL3 KEY_COL3 KEY_COL4 KEY_COL4 Figure 3.8 Keypad Switches and Scanning Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 33 - Only for training and service purposes...

  • Page 33: Microphone

    SPK_MICN SPEAKER PHONE MODE C110 C111 R106 Don't Use 2.2K Figure 3.9 Connection between Microphone, AD6726 and AIT716 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 34 - Only for training and service purposes...

  • Page 34: Main Speaker

    L204 270nH SPK_P L205 270nH SPK_N C233 C234 Figure 3.10 Connection between Speaker, Amp and AD6726 & AIT716 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 35 - Only for training and service purposes...

  • Page 35: Headset Interface

    R309 RPWRON USC2 USC1 C313 C314 C315 C316 C317 100p C357 330p GU041-18P-E1000 Figure 3.11 HEADSET JACK INTERFACE LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 36 - Only for training and service purposes...

  • Page 36: Key Back-Light Illumination

    ICVN0505X150FR LD104 LD100 LD101 LD102 LD103 LD105 EDLH0013403 WHITE LD200 LD201 LED_BC LED_A Figure 3.12 KEY BACK-LIGHT ILLUMINTION Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 37 - Only for training and service purposes...

  • Page 37: Lcd Back-Light Illumination

    VB300 R317 Q2_C Q2_E Q2_B Q1_B C331 VIBRATOR Q1_E Q1_C L302 100nH Q300 C339 4.7u Figure 3.14 Vibrator LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 38 - Only for training and service purposes...

  • Page 38: Battery Charging

    IVDC _CHG_EN IMIN R336 IUSB 100K R339 C352 C353 R340 R338 C354 Figure 3.15 CIRCUIT FOR BATTERY CHARGING Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 39 - Only for training and service purposes...

  • Page 39: Trouble Shooting

    U502 X500 Figure 4.1 U501 PAM (SKY77318) U502 (AD6548) RF Main Chip (Transceiver) X500 Crystal, 26MHz Clock FL500 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 40 - Only for training and service purposes...

  • Page 40: Rx Trouble

    Crystal Circuit(TP1, (2) Check Mobile SW &Rx Saw(TP3,4,5,6) (3) Check RX I/Q Signal(TP7,8) Re-download SW or Do calibration again Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 41 - Only for training and service purposes...
  • Page 41 VBAT 2V75_VVCXO C513 Not Mount 1000p 26M_BT R509 C514 2.2u C522 0.1u 26M_DBB WAVEFORM Graph 4.2.1(b) Graph 4.2.1(a) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 42 - Only for training and service purposes...
  • Page 42 TX_RAMP GSM900_RX2 GSM900_RX1 C532 C533 C505 C506 C507 0.1u GSM850_RX2 GSM850_RX1 LMSP43QA-538 FL500 SFAY0008602 ANT_SW1 ANT_SW2 C544 C545 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 43 - Only for training and service purposes...
  • Page 43 RX Stand alone Mode is needed refer to chapter 10 GSM850 RX EGSM900 RX DCS1800 RX PCS1900 RX LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 44 - Only for training and service purposes...
  • Page 44 Check if there is any Similar? Replace U502 Major difference Refer to graph 4.2.3 Redownload software and calibration again Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 45 - Only for training and service purposes...

  • Page 45: Tx Trouble

    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 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 46 - Only for training and service purposes...
  • Page 46 2V75_VVCXO U500 C513 Not Mount 1000p 26M_BT R509 C514 C522 2.2u 0.1u 26M_DBB WAVEFORM Graph 4.2.1(a) Graph 4.2.1(b) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 47 - Only for training and service purposes...
  • Page 47 GSM1800_RX1 GSM900_RX2 GSM900_RX1 C505 C506 C507 C532 C533 0.1u GSM850_RX2 GSM850_RX1 LMSP43QA-538 FL500 SFAY0008602 ANT_SW1 ANT_SW2 C544 C545 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 48 - Only for training and service purposes...
  • Page 48 TX Stand alone Mode is needed refer DCS_PCS TX to chapter 10 GSM850 RX EGSM900 RX DCS1800 RX PCS1900 RX Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 49 - Only for training and service purposes...
  • Page 49 Any Major Difference or not Any Major Difference or not ¨ Refer to Graph 4.3.3 ¨ Go to Next Step LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 50 - Only for training and service purposes...
  • Page 50 Check if there is Similar? Replace U502 Any Major Difference Refer to Graph4.3.4 Re-download the Software And calibrate Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 51 - Only for training and service purposes...

  • Page 51: Bluetooth + Fm Radio

    BT_DBB_INT Balun Filter 0.1uF R207 SFDY0002601 R208 AIT_CLKON C238 C239 C241 C240 2.2u 0.1u BT_MAIN_CLK_EN 2.2u _BT_RST 2V8_VEXT LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 52 - Only for training and service purposes...
  • Page 52 _BT_RST check at TP4? U103 Bluetooth on is OK? Re-download SW and try again Bluetooth will work properly Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 53 - Only for training and service purposes...
  • Page 53 2V8_BT at TP1 Replace Check BT_32k at TP5? U103 Replace FM_Radio work is good? U200 FM_radio will work properly LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 54 - Only for training and service purposes...

  • Page 54: Power On Trouble

    C136 VABB_LDO C129 C130 C131 C133 C134 C135 0.1u VAPP C127 C128 VAPPGATE PWREN VAPPCFG VMEMSEL VRTCSEL PMTSEL Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 55 - Only for training and service purposes...
  • Page 55 Replace U100 and Re-download software Does it work properly? The phone will Replace the main board Properly operating. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 56 - Only for training and service purposes...

  • Page 56: Charging Trouble

    PGND VDC_BYP VUSB _PPR USB_BYP _CHG IVDC _CHG_EN IMIN R336 IUSB 100K R339 C352 C353 R340 R338 C354 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 57 - Only for training and service purposes...
  • Page 57 Is Voltage across TP2 Replace the 304 LOW? Battery is charged? Replace the main board Charging is properly operating LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 58 - Only for training and service purposes...
  • Page 58 Is Voltage across TP2 Replace the U304 LOW? Battery is charged? Replace the main board Charging is properly operating Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 59 - Only for training and service purposes...

  • Page 59: Vibrator Trouble

    VIBRATOR VBAT (1608) VB300 R317 Q2_C Q2_E Q2_B Q1_B C331 VIBRATOR Q1_E Q1_C L302 100nH Q300 C339 4.7u LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 60 - Only for training and service purposes...
  • Page 60 311, L301, Q200 Check the soldering Resolder or Replace vibrator of vibrator ? Replace vibrator Vibrator Working well ! Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 61 - Only for training and service purposes...

  • Page 61: Lcd Trouble

    4. TROUBLE SHOOTING 4.8 LCD Trouble TEST POINT CN10 0 FPCB CN302 Figure 4.8 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 62 - Only for training and service purposes...
  • Page 62 F_DATA05 F_DATA06 R103 F_DATA07 CN100 C106 MM LDO 2V8_MM EUSY0365901 VBAT U403 RP101K282D R415 VOUT ONNOFF C423 C424 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 63 - Only for training and service purposes...
  • Page 63 Check the soldering of (FL300,FL301,FL302) EMI filter ? Does LCD work Replace LCD module properly ? LCD working well ! LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 64 - Only for training and service purposes...

  • Page 64: Camera Trouble

    4. TROUBLE SHOOTING 4.9 Camera Trouble TEST POINT FL400 FL401 FL402 Figure 4.8 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 65 - Only for training and service purposes...
  • Page 65 INOUT_B1 R424 C_VS_OUT INOUT_A2 INOUT_B2 C_VS C_MCLK C_MCLK_IN INOUT_A3 INOUT_B3 C_PCLK_OUT INOUT_A4 INOUT_B4 C_PCLK R425 120K C414 ICVE10184E150R500FR LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 66 - Only for training and service purposes...
  • Page 66 U404 U400 Replace the camera module Replace Check the signals of the FL400,FL401,FL402 FL400,FL401,FL402 Camera will work properly Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 67 - Only for training and service purposes...

  • Page 67: Speaker Trouble

    AUXOP_L INB1 OUT+ SPK_P C214 FM_L BIAS OUT- SPK_N C218 C221 C222 MM_L I2C_SDA I2C_SCL RXIN+ RXIN- C225 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 68 - Only for training and service purposes...
  • Page 68 Change the main Check, TP3 is VBAT? board Is speaker Change U200 properly working? Speaker Working well!! Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 69 - Only for training and service purposes...

  • Page 69: Sim Card Interface Trouble

    Figure 4.11 CIRCUIT 2V85_VSIM 2V85_VSIM J300 R315 SIM_RST SIM_DATA SIM_CLK GND2 GND1 C326 C327 C328 C329 220n 1000p LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 70 - Only for training and service purposes...
  • Page 70 Does it work Does it work Properly? Properly? SIM card is properly working SIM card is properly working. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 71 - Only for training and service purposes...

  • Page 71: Earphone Trouble

    INB2 C213 GU041-18P AUXOP_L INB1 C214 FM_L BIAS C534 C218 MM_L I2C_SDA I2C_SCL RXIN+ RXIN- C225 Figure 4.12 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 72 - Only for training and service purposes...
  • Page 72 Or Change the U103 and try again the earphone? the earphone? Earphone will work properly Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 73 - Only for training and service purposes...

  • Page 73: Key Backlight Trouble

    4. TROUBLE SHOOTING 4.13 KEY backlight Trouble TEST POINT LD201 LD200 CIRCUIT KEY BACKLIGHT VBAT EDLH0013403 WHITE LD200 LD201 LED_A LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 74 - Only for training and service purposes...
  • Page 74 Low Duty(70%)? Are all LEDs Check the soldering Working? each LED Replace or resolder Backlight will work properly. component Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 75 - Only for training and service purposes...

  • Page 75: Receiver Trouble

    REC_P C101 L101 1800 REC_N REC_N C102 C103 VA100 VA101 REC_P C348 C349 MLED MLED1 MLED2 LCD_RESET LCD_ID LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 76 - Only for training and service purposes...
  • Page 76 Change the FPCB fluctuate? Check TP2 to make sure the Resolder/Change the receiver receiver connected Properly? Receiver will work properly. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 77 - Only for training and service purposes...

  • Page 77: Microphone Trouble

    SPKPH_EN NO_D0 MM_MICP R306 SPK_MICN NO_B0 MIC_PATH_SEL OBE-415L42-RC10-LGB10 C311 0.1uF MAIN_MICN COM_B NC_C1 VINNORN MIC300 C308 C309 C312 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 78 - Only for training and service purposes...
  • Page 78 Are the TP5 LOW? Change the U103 fluctuate? Change the U301 Check the soldering of Resolder component Microphone will work properly. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 79 - Only for training and service purposes...

  • Page 79: Rtc Trouble

    4. TROUBLE SHOOTING 4.16 RTC Trouble TEST POINT X100 Figure 4.15 CIRCUIT C121 MC-146_12_5PFX100 32.768KHz C124 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 80 - Only for training and service purposes...
  • Page 80 TP1 about 400mV? change the X100 Re-download software and try Is RTC properly working? again RTC will work properly Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 81 - Only for training and service purposes...

  • Page 81: Slide Open/Close Trouble

    4.17 Slide open/close Trouble TEST POINT U300 Figure 4.17 CIRCUIT 2V8_VMEM SLIDE EUSY0362601 BU52031NVX U300 C303 0.1u C306 0.1u LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 82 - Only for training and service purposes...
  • Page 82 Resolder U300 Voltage at TP2 =2.8V Close folder. Replace U300 Voltage atTP2 = 0V Folder on/off will work properly Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 83 - Only for training and service purposes...

  • Page 83: Micro Sd Trouble

    TF_DATA1 BH28PB1WHFV TF_DATA0 TFLASH_EN STBY TF_CLK BGND VOUT TF_CMD TF_DATA3 C350 C351 EUSY0290701 TF_DATA2 4.7u C355 C356 ENSY0014701 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 84 - Only for training and service purposes...
  • Page 84 Check out T_CLK & Data Re-download SW Timing OK? Replace Micro SD Card Micro SD Card will work properly Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 85 - Only for training and service purposes...

  • Page 85: Download

    5. DOWNLOAD 5. DOWNLOAD 5.1 Download A. Download Setup Figure 5.1 describes Download setup Figure 5.1 Download Setup LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 86 - Only for training and service purposes...
  • Page 86 5. DOWNLOAD B. Multi Download Procedure 1. Run GSM Multi Download program and select Setting KP265 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 87 - Only for training and service purposes...
  • Page 87 2. Select Configuration from the menu and you may see this window 3. Press key to select DLL file and press Open KP265_080315.dll LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 88 - Only for training and service purposes...
  • Page 88 5. Select AlchemyData.mot and press open 6. Repeat step 4-5 to select CodeData.mot Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 89 - Only for training and service purposes...
  • Page 89 7. Check if the ADI option is set to Hermes 8. Press OK to end Configuration KP265 KP265 Select Rate LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 90 - Only for training and service purposes...
  • Page 90 10. Once downloading is started, press STOP button to keep from re-downloading after downloading is completed. KP265 KP265 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 91 - Only for training and service purposes...

  • Page 91: Block Diagram

    6. BLOCK DIAGRAM 6. BLOCK DIAGRAM Figure 6.1 LG-KP235 Block Diagram LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 92 - Only for training and service purposes...

  • Page 92: Circuit Diagram

    NAME Approved DRAWING VER 1.0 LG Electronics Inc. Iss. Notice No. Date Name LG(42)-A-5505-10:01 LG Electronics Inc. LGMC - 93 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 93 KEY_COL4 KEY_COL4 DRAWING Iss. Notice No. Date Name LG Electronics Inc. VER 1.0 LGIC(42)-A-5505-10:01 LG Electronics Inc. LGMC - 94 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 94 Approved 2006 DRAWING VER 1.0 LG Electronics Inc. Iss. Notice No. Date Name LG(42)-A-5505-10:01 LG Electronics Inc. LGMC - 95 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 95 Multimedia C433 NAME R424 Approved R425 120K DRAWING VER 1.0 LG Electronics Inc. LGIC(42)-A-5505-10:01 LG Electronics Inc. LGMC - 96 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 96 DRAWING DCS1800 RX NAME Approved PCS1900 RX DRAWING VER 1.0 LG Electronics Inc. LGIC(42)-A-5505-10:01 LG Electronics Inc. LGMC - 97 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 97 NAME Approved DRAWING VER 1.0 Iss. Notice No. Date Name LG Electronics Inc. LG Electronics Inc. LGIC(42)-A-5505-10:01 LGMC - 98 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 98 FPCB NAME Approved DRAWING Iss. Notice No. Date Name LG Electronics Inc. REV.B LGIC(42)-A-5505-10:01 LG Electronics Inc. LGMC - 99 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 99 - 100 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 100: Bga Ic Pin Check

    8. BGA IC Pin Check 8. BGA IC Pin Check U103 AD6726 (EUSY0364401) Top View Not use Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 101 - Only for training and service purposes...
  • Page 101 8. BGA IC Pin Check U101 EUSY0288701 S71PL256NC0_TLA084 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 102 - Only for training and service purposes...
  • Page 102 8. BGA IC Pin Check U400 EUSY0344901 AIT716 Bottom View Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 103 - Only for training and service purposes...
  • Page 103 8. BGA IC Pin Check U200 SMZY0015801 BLUECORE5-FM Not use (NC Pin) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 104 - Only for training and service purposes...
  • Page 104 BT Tx & Rx No USB No Service LD200, LD201 LED No KEY backlight MIC300 MIC No MIC - 105 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 105: Pcb Layout

    No Speaker U303 T-flash CN301 Battery LDO. Conn. No T-flash No Power on Q300 Vibrator Tr. No Vibrator - 106 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 106 7. CIRCUIT DIAGRAM MIC100 MIC No MIC for SPK phone LD100~104 No KEY backlight - 107 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 107 CN100 LCD Conn. No Receiver No Display No Mic for Spk phone No Multi Key BAT100 Backup Battery RTC Reset - 108 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 108 7. CIRCUIT DIAGRAM CN403 No Display No Receiver No Mic for Spk phone No Multi Key - 109 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 109 - 110 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 110: Engineering Mode

    Cell Env. Battery Info Key Backlight (Ded) Audio Speaker Tuning Vibrator UART Camera Setting MicRcv BT Test Keypad Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 111 - Only for training and service purposes...

  • Page 111: Mf Mode [Menu 1]

    2) Flash on : Camera Flash LED turns on. 3) Flash off : Camera flash LED turns off. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 112 - Only for training and service purposes...

  • Page 112: Elt Mode [Menu 2]

    This displays total conversation time. This value is never reset even after Factory Reset. 10.5.2 Band Selection This menu is designed to allow a service man/engineer to select band and test. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 113 -...
  • Page 113 4. test table 3 2. Downlink 1. aecCtrl 1. Enable / 2. Disable 2. aecCnfg 0x0000 ~ 0xFFFF LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 114 - Only for training and service purposes...

  • Page 114: Network Info [Menu 6]

    2) RF Trst 10.6 Network Info [MENU 6] This displays Cell Enviroment. 10.6.1 Cell Env. (Idle) 10.6.2 Cell Env. (Ded) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 115 - Only for training and service purposes...

  • Page 115: Stand Alone Test

    - See if the value of RSSI is close to -16dBm when setting the value between 0 ~ 26 in Gain Control Index. - Normal phone should indicate the value of RSSI close to -16dBm. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 116 - Only for training and service purposes...

  • Page 116: Means Of Test

    After setting them all above, press connect button. e. Press the start button Connect Button Figure 11.3.1 HW test program Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 117 - Only for training and service purposes...
  • Page 117 11. STAND ALONE TEST Figure 11.3.2 HW test setting Figure 11.3.3 Ramping profile LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 118 - Only for training and service purposes...

  • Page 118: Auto Calibration

    PC (for Software Installation) Pentium II class above 300MHz Table 11.2.1 Calibration Equipment List. Figure 11.2.1 Equipment Setup Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 119 - Only for training and service purposes...

  • Page 119: Test Jig Operation

    Indicate data transfer state through the UART port LED 4 Indicate data transfer state through the MON port Table 12-4 LED Description LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 120 - Only for training and service purposes...

  • Page 120: Procedure

    TEST JIG, in general.) 2. Run Hot_Kimchi.exe to start calibration. 3. From the Calibration menu, Select KP265! KP265 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 121 - Only for training and service purposes...
  • Page 121 12. AUTO CALIBRATION 4. Press Calibration START KP265 KP265 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 122 - Only for training and service purposes...

  • Page 122: Agc

    12.7 ADC This procedure is for battery calibration. You can get main Battery Config Table and temperature Config Table will be reset. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 123 - Only for training and service purposes...
  • Page 123 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 124 - Only for training and service purposes...

  • Page 124: Exploded View & Replacement Part List

    8 10 13 79 80 21 22 15 16 56 57 58 76 71 74 60 61 62 - 125 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 125 ASS'Y EXPLODED VIEW - 126 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 126: Replacement Parts

    CUTTING, PMMA MR 200, 0.1t, , , , Color ACGQ00 COVER ASSY,SLIDE ACGQ0026501 ABGF00 BUTTON ASSY,MAIN ABGF0004302 Silver G, 48 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 127 - Only for training and service purposes...
  • Page 127 COMPLEX, (empty), , , , , Color Without MMAA00 MAGNET,SWITCH MMAA0008701 COMPLEX, (empty), , , , , Color LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 128 - Only for training and service purposes...
  • Page 128 COMPLEX, (empty), , , , , Color Without MGAD00 GASKET,SHIELD FORM MGAD0170001 COMPLEX, (empty), , , , , Color Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 129 - Only for training and service purposes...
  • Page 129 CAN,SHIELD MCBA0031801 PRESS, STS, , , , , Color Without MLAZ00 LABEL MLAZ0038301 PID Label 4 Array Color LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 130 - Only for training and service purposes...
  • Page 130 35 PIN,0.3 mm,STRAIGHT , , ,; , ,0.30MM ,FPC CN100 CONNECTOR,FFC/FPC ENQY0013901 ,STRAIGHT ,BOTH ,SMD ,R/TP ,[empty] , ECN100 CONNECTOR,FFC/FPC ENQY0010102 61 PIN,0.3 mm,ETC ,AU ,H::1.0MM Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 131 - Only for training and service purposes...
  • Page 131 SAFB0087201 SJMY00 VIBRATOR,MOTOR SJMY0007106 3 V,.08 A,10*3.0T ,17mm ,; ,3V , , ,12000 rpm , , , , LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 132 - Only for training and service purposes...
  • Page 132 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C120 CAP,CERAMIC,CHIP ECCH0000143 1 nF,50V,K,X7R,HD,1005,R/TP C121 CAP,CHIP,MAKER ECZH0000810 9 pF,50V ,D ,NP0 ,TC ,1005 ,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 133 - Only for training and service purposes...
  • Page 133 ECCH0000120 39 pF,50V,J,NP0,TC,1005,R/TP C154 CAP,CERAMIC,CHIP ECCH0000120 39 pF,50V,J,NP0,TC,1005,R/TP C155 CAP,CERAMIC,CHIP ECCH0000120 39 pF,50V,J,NP0,TC,1005,R/TP C156 CAP,CERAMIC,CHIP ECCH0000120 39 pF,50V,J,NP0,TC,1005,R/TP LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 134 - Only for training and service purposes...
  • Page 134 1 uF,10V ,K ,X5R ,TC ,1005 ,R/TP C313 CAP,CHIP,MAKER ECZH0000813 100 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP C314 CAP,CERAMIC,CHIP ECCH0000113 18 pF,50V,J,NP0,TC,1005,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 135 - Only for training and service purposes...
  • Page 135 ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP C407 CAP,CHIP,MAKER ECZH0000830 33 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 136 - Only for training and service purposes...
  • Page 136 ECZH0000830 33 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP C518 CAP,CERAMIC,CHIP ECCH0000115 22 pF,50V,J,NP0,TC,1005,R/TP C519 CAP,CERAMIC,CHIP ECCH0000127 82 pF,50V,J,NP0,TC,1005,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 137 - Only for training and service purposes...
  • Page 137 ENZY0019801 Connector CN400 CONN,SOCKET ENSY0020101 24 PIN,ETC , ,0.9 mm, D100 DIODE,SWITCHING EDSY0017301 VSM ,15 V,100 mA,R/TP ,PB-FREE LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 138 - Only for training and service purposes...
  • Page 138 100 ohm,1/16W ,J ,1005 ,R/TP R105 RES,CHIP ERHY0000254 4.7K ohm,1/16W,J,1005,R/TP R106 RES,CHIP ERHY0000254 4.7K ohm,1/16W,J,1005,R/TP R107 RES,CHIP ERHY0000512 10M ohm,1/16W,J,1608,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 139 - Only for training and service purposes...
  • Page 139 100 Kohm,1/16W ,J ,1005 ,R/TP R311 RES,CHIP,MAKER ERHZ0000406 100 Kohm,1/16W ,J ,1005 ,R/TP R312 RES,CHIP,MAKER ERHZ0000529 1.5 Kohm,1/16W ,J ,1005 ,R/TP LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 140 - Only for training and service purposes...
  • Page 140 R411 SAFP0000501 SHORT R412 RES,CHIP ERHY0000254 4.7K ohm,1/16W,J,1005,R/TP R413 RES,CHIP ERHY0000254 4.7K ohm,1/16W,J,1005,R/TP PCB ASSY,MAIN,PAD R414 SAFP0000501 SHORT Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 141 - Only for training and service purposes...
  • Page 141 DFN1612-4B ,4 ,R/TP ,300mA 2.8V LDO ,; ,IC,LDO U403 EUSY0365901 Voltage Regulator U501 SMPY0014001 35.5 dBm,56 %, A, dBc, dB,6x6x1.15 ,SMD ,Tri Band LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 142 - Only for training and service purposes...
  • Page 142 ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C240 CAP,CERAMIC,CHIP ECCH0000198 2.2 uF,6.3V ,M ,X5R ,TC ,1005 ,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 143 - Only for training and service purposes...
  • Page 143 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP CONNECTOR,BOARD TO CN302 ENBY0040501 50 PIN,0.4 mm,ETC , ,H=1.0, Socket BOARD LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 144 - Only for training and service purposes...
  • Page 144 2.2 ohm,1/16W ,J ,1005 ,R/TP PCB ASSY,MAIN,PAD R208 SAFP0000501 SHORT R209 RES,CHIP,MAKER ERHZ0000505 680 ohm,1/16W ,J ,1005 ,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 145 - Only for training and service purposes...
  • Page 145 100 Kohm,1/16W ,J ,1005 ,R/TP R418 RES,CHIP,MAKER ERHZ0000529 1.5 Kohm,1/16W ,J ,1005 ,R/TP R419 RES,CHIP ERHY0008402 160 Kohm,1/16W ,F ,1005 ,R/TP LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 146 - Only for training and service purposes...
  • Page 146 ERHZ0000213 120 Kohm,1/16W ,F ,1005 ,R/TP SPFY PCB,MAIN SPFY0181401 FR-4 ,0.8 mm,BUILD-UP 8 ,KP260 MAIN ,; , , , , , , , , , U200 MODULE,ETC SMZY0015801 84 Ball 0.5pitch, BGA , Bluetooth+FM (6.0*6.0*1.0) SON5-P-0.35(fSV) ,5 PIN,R/TP ,2-INPUT AND GATE, Pb...

  • Page 147: Accessory

    100-240V ,5060 Hz,5.6 V,.4 A,GOST ,AC-DC Adaptor ,; ADAPTOR,AC-DC SSAD0028502 ,150Vac~350Vac ,5.6V +/-0.8V ,400mA ,5060 , ,WALL 2P ,I/O CONNECTOR , LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 148 - Only for training and service purposes...
  • Page 148 Note...
  • Page 149 Note...

This manual is also suitable for:

Kp265

Table of Contents