hit counter script
LG KP135 Service Manual
  1. Manuals
  2. Brands
  3. LG Manuals
  4. Cell Phone
  5. KP135
  6. Service manual
LG KP135 Service Manual

LG KP135 Service Manual

Hide thumbs Also See for KP135:
Table of Contents

Advertisement

Quick Links

Download this manual See also: User Manual
Internal Use Only
Service Manual
KP135
Date: May, 2008 / Issue 1.0

Advertisement

Table of Contents
loading

Related Manuals for LG KP135

Summary of Contents for LG KP135

  • Page 1 Internal Use Only Service Manual KP135 Date: May, 2008 / Issue 1.0...

  • Page 2: Table Of Contents

    4.12 KEY backlight Trouble ......70 4.13 Receiver Trouble........72 4.14 Microphone Trouble ......74 4.15 RTC Trouble ........76 4.16 FM Radio ..........78 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 3 - Only for training and service purposes...

  • Page 3: Only For Training And Service Purposes

    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: Only For Training And Service Purposes

    • 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: Only For Training And Service Purposes

    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

    Loud Speaker Voice Recoding Microphone Speaker/Receiver One way speaker Travel Adapter MIDI SW MIDI (Mono SPK) Camera Bluetooth Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 9 - Only for training and service purposes...

  • Page 9: Technical Specification

    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: Only For Training And Service Purposes

    3,000~ <6,000 6,000 GSM850 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: Only For Training And Service Purposes

    * Mean that Adopt a straight line in between 300 Hz and 1,000 Hz to be Max. level in the range. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 12 - Only for training and service purposes...

  • Page 12: Only For Training And Service Purposes

    3.76V 0.05 V ~ 3.56 0.05 V (Call) every 1 minutes Low Voltage Warning 3.50 0.05 V (Standby) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 13 - Only for training and service purposes...

  • Page 13: Only For Training And Service Purposes

    Capacity: 900mAh Switching-mode charger Travel Charger Input: 100 ~ 240 V, 50/60 Hz Output: 6.6 V, 400 mA LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 14 - Only for training and service purposes...

  • Page 14: Technical Brief

    This feature provides additional flexibility for the designer in the selection of FEM interface control logic. 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: Only For Training And Service Purposes

    RF and DC Ground GMD PADS GROUND GRID Ground Pads, module underside SKY77517 Pad Names and Signal Descriptions LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 16 - Only for training and service purposes...

  • Page 16: Band Select

    Table 3.2.1 Band SW Logic Table DCS_RX VBATT GSM_RX GND9 U500 GND1 DCS_IN SKY77518 GND2 GND3 GSM_IN GND8 Figure 3.2.1 PAM+ASM CIRCUIT DIAGRAM Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 17 - Only for training and service purposes...

  • Page 17: Transceiver (Ad6548, U501)

    IC. The interface features low-voltage digital interface buffers compatible with logic levels from 1.6V to 2.9V. Figure 3.2 AD6548 Block Diagram LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 18 - Only for training and service purposes...

  • Page 18: Only For Training And Service Purposes

    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. X500 TSX-3225_26MHZ 26MHz EXXY0024401 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: Baseband Processor (Ad6724, U103)

    • GSM 900/900 power classes 4 and 5, • DCS 1800 power classes 1 and 2, and • DCS 1800 power classes 1 and 2 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 21 -...

  • Page 21: Only For Training And Service Purposes

    3. TECHNICAL BRIEF Figure 3.5 SYSTEM INTERCONECTION OF AD6724 EXTERNAL INTERFACE LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 22 - Only for training and service purposes...

  • Page 22: Only For Training And Service Purposes

    Select 16bits or 8bits interface mode for MAIN LCD. For the future 2V8_AIT_CAM 2.8V voltage is supplied to LCD driver IC. Table 3.5.B LCD CONTRON SIGNALS DISCRIPTION Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 23 - Only for training and service purposes...

  • Page 23: Only For Training And Service Purposes

    S_EN (GPO 19) PLL Enable/Disable S_DATA (GPO 20) Serial Data to PLL Table 3.5.C RF CONTROL SIGNALS DESCRIPTION LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 24 - Only for training and service purposes...

  • Page 24: Only For Training And Service Purposes

    R332 nSIM_RST SIM_DATA SIM_CLK GND4 GND1 C325 C324 GND3 GND2 1000p 220n Figure 3.5.D2 SIM Interface of AD6724 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 25 - Only for training and service purposes...

  • Page 25: Only For Training And Service Purposes

    - Output current: Max 400mA 6. Battery - Li-ion battery (Max 4.2V, Nom 3.7V) - Standard battery: Capacity - 900mAh LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 26 - Only for training and service purposes...

  • Page 26: Only For Training And Service Purposes

    (5%) R114 C138 C140 R116 R115 C139 100K 0.1uF 100K 4.7n (1%) Figure 3.5.F1 CIRCUIT FOR BATTERY CHARGING Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 27 - Only for training and service purposes...

  • Page 27: Display And Interface

    LCD_WR R421 nLCD_RESET R422 LCD_RS C421 C422 C423 C424 ECZH0000826 ECZH0000826 ECZH0000826 ECZH0000826 Figure 3.6 LCD INTERFACE CIRCUIT LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 28 - Only for training and service purposes...

  • Page 28: Camera Interface(Ait701G, U400)

    YCbCr is real data interface signal. Figure 3.7.1 AIT701G BLOCK DIAGRAM Figure 3.7.2 SENSOR CHIP BLOCK DIAGRAM Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 29 - Only for training and service purposes...

  • Page 29: Only For Training And Service Purposes

    C_MCLK C425 1000p AIT_13M PMCLK PPXL_CLK C_PCLK VDD_IO0 VDD_IO1 GND_IO0 GND_IO1 C426 C427 EUSY0318501 Figure 3.7.3 AIT701G CIRCUIT LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 30 - Only for training and service purposes...

  • Page 30: Keypad Switches And Scanning

    L304 27nH 27nH 27nH R322 KEY_COL0 R323 KEY_COL1 R324 KEY_COL2 R325 KEY_COL3 Figure 3.8 Keypad Switches and Scanning Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 31 - Only for training and service purposes...

  • Page 31: Microphone

    0.1uF 100ohm VA301 CLOSE TO ABB R321 C315 C316 EVL5M02200 2.2K Figure 3.9 Connection between Microphone and AD6724 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 32 - Only for training and service purposes...

  • Page 32: Main Speaker

    VA203 RADIO_SPK_L EVL5M02200 EVL5M02200 R208 C214 0.1uF R209 C215 1000p Figure 3.10 Connection between Speaker, Amp and AD6724 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 33 - Only for training and service purposes...

  • Page 33: Headset Interface

    C230 7 : GENIE_RX GENIE_RX nJACK_DET 8 : nJACK_DET 2V8_VEXT 9,10 : BATT Figure 3.11 HEADSET JACK INTERFACE LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 34 - Only for training and service purposes...

  • Page 34: Key Back-Light Illumination

    R313 LEBB-S14E LD308 100ohm R315 LEBB-S14E LD309 100ohm R318 C535 C534 470n 470n Figure 3.12 KEY BACK-LIGHT ILLUMINTION Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 35 - Only for training and service purposes...

  • Page 35: Lcd Back-Light Illumination

    C318 C319 MLED R326 LCD_BACKLIGHT_CTRL EN_SET MLED1 MLED2 C321 C322 EUSY0238702 C323 R329 Figure 3.12 KEY BACK-LIGHT ILLUMINTION LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 36 - Only for training and service purposes...

  • Page 36: Vibrator

    VIBRATOR (USC3) of AD6724 VBAT KDS114E CN300 D300 C320 R327 (50V,J,NP0) Q300 R328 VIBRATOR KTC4075E R330 (1608) 100K Figure 3.14 Vibrator Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 37 - Only for training and service purposes...

  • Page 37: Fm Radio (Si4702, U202)

    FM_32K VBAT 2V8_RADIO U204 FM_LDO_EN STBY R229 BGND VOUT R231 C236 BH28FB1WHFV C237 100K Figure 3.15 FM Radio LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 38 - Only for training and service purposes...

  • Page 38: Only For Training And Service Purposes

    The unity-gain stable LM4809 can be configured by external gain-setting resistors. The LM4809 features an externally controlled, active-low, micro-power consumption shutdown mode, as well as an internal thermal shutdown protection mechanism. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 39 -...

  • Page 39: Trouble Shooting

    PAM +ASM (SKY77517) U501 (AD6548) RF Main Chip (Transceiver) X500 Crystal, 26MHz Clock FL500 SAW Filter SW500 Mobile Switch 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 (2) Check Mobile SW &ASM (3) Check RX I/Q Signal 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: Only For Training And Service Purposes

    R508 CIRCUIT R508 C509 C510 C512 1000p R514 C515 C516 C517 0.1uF VLDO2 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: Only For Training And Service Purposes

    SKY77518 Tx_EN GND2 L501 L502 GND3 GSM_IN GND8 2.7nH 2.7nH C514 V_LOGIC 1.2p Graph 4.2.2 ASM Control Signal Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 43 - Only for training and service purposes...

  • Page 43: Only For Training And Service Purposes

    RX Stand alone Mode is needed Tx_EN refer to chapter 10 GSM Rx DCS Rx GSM Tx DCS Tx Table 4.2.2 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 44 - Only for training and service purposes...

  • Page 44: Only For Training And Service Purposes

    Check if there is any Similar? Replace U501 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 (3)Check PAM control signal (4)Check TX I/Q Signal 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: Only For Training And Service Purposes

    R508 R508 CIRCUIT C509 C510 C512 1000p R514 C515 C516 C517 0.1uF VLDO2 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: Only For Training And Service Purposes

    SKY77518 GND2 Tx_EN L501 L502 GND3 GSM_IN GND8 2.7nH 2.7nH C514 1.2p V_LOGIC Graph 4.2.2 ASM Control Signal LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 48 - Only for training and service purposes...

  • Page 48: Only For Training And Service Purposes

    RF Cable disconnected Input Control Bits Mode Vlogic Tx_EN GSM Rx DCS Rx GSM Tx DCS Tx Table 4.3.2 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: Only For Training And Service Purposes

    Check if there is Replace U501 Similar? 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: Power On Trouble

    C116 VVCXO C117 VSIM ASDO_DBB DBBON PWRON RPWRON TXON D100 R104 GPO_1 RXON 100K RXON RB521S-30 GPO_0 CSFS_ABB LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 52 - Only for training and service purposes...

  • Page 52: Only For Training And Service Purposes

    Is the phone power on? Does it work properly? The phone will Replace the main board Properly operating. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 53 - Only for training and service purposes...

  • Page 53: Charging Trouble

    R114 C138 C140 R116 R115 C139 GND_PAD IN_PAD 100K 4.7n 100K 0.1uF (1%) C129 C130 0.1uF 50V, Y5V LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 54 - Only for training and service purposes...

  • Page 54: Only For Training And Service Purposes

    C128 = 6.4V ? Resolder the Are U101,FL100 U101, FL100 well-soldered? Replace the Battery is charged? U102 Charging is properly operating Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 55 - Only for training and service purposes...

  • Page 55: Vibrator Trouble

    Q300 Figure 4.6 CIRCUIT VBAT KDS114E CN300 D300 C320 R327 (50V,J,NP0) Q300 R328 VIBRATOR KTC4075E R330 (1608) 100K LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 56 - Only for training and service purposes...

  • Page 56: Only For Training And Service Purposes

    Q300 low ? Reassembly or Check the contact Replace vibrator of vibrator ? Replace vibrator Vibrator Working well ! Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 57 - Only for training and service purposes...

  • Page 57: Lcd Trouble

    4. TROUBLE SHOOTING 4.7 LCD Trouble TEST POINT CN400 U401 Figure 4.7 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 58 - Only for training and service purposes...

  • Page 58: Only For Training And Service Purposes

    ECZH0000826 ECZH0000826 ECZH0000826 ECZH0000826 (300mA) (300mA) 2V8_VEXT VBAT 2V8_AIT_CAM 1V8_AIT_CAM U401 RT9011-MGPQW EUSY0319001 VOUT1 VOUT2 C444 C445 C446 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 59 - Only for training and service purposes...

  • Page 59: Only For Training And Service Purposes

    Check the soldering of Resoldering R400~R422 LCD Line ? Does LCD work Replace LCD module properly ? LCD working well ! LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 60 - Only for training and service purposes...

  • Page 60: Camera Trouble

    4. TROUBLE SHOOTING 4.8 Camera Trouble TEST POINT U400(AIT701G) U401 Figure 4.8 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 61 - Only for training and service purposes...

  • Page 61: Only For Training And Service Purposes

    PSCK C_SCK PHWAIT_ PDCLK C_MCLK C425 1000p AIT_13M PMCLK PPXL_CLK C_PCLK VDD_IO0 VDD_IO1 GND_IO0 GND_IO1 C426 C427 EUSY0318501 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 62 - Only for training and service purposes...

  • Page 62: Only For Training And Service Purposes

    Itís camera moduleís problem Replace the camera module Check the signals of the Resoldering the resistor R423~R436 Camera will work properly Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 63 - Only for training and service purposes...

  • Page 63: Speaker Trouble

    470n R206 17pi 3.6T speaker C213 0.1uF VA202 VA203 RADIO_SPK_L EVL5M02200 EVL5M02200 R208 C214 0.1uF R209 C215 1000p LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 64 - Only for training and service purposes...

  • Page 64: Only For Training And Service Purposes

    R202,R204 Check the Power voltage Change the U201 U201 = VBAT And work properly ? Speaker Working well!! Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 65 - Only for training and service purposes...

  • Page 65: Sim Card Interface Trouble

    2V85_VSIM 2V85_VSIM 2V85_VSIM R331 J300 4.7K R332 nSIM_RST SIM_DATA SIM_CLK GND4 GND1 C325 C324 GND3 GND2 1000p 220n LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 66 - Only for training and service purposes...

  • Page 66: Only For Training And Service Purposes

    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 - 67 - Only for training and service purposes...

  • Page 67: Earphone Trouble

    C225 AUXOP_FM_R ECCH0005604 6 : GENIE_TX GENIE_TX C229 C230 7 : GENIE_RX GENIE_RX nJACK_DET 8 : nJACK_DET 2V8_VEXT LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 68 - Only for training and service purposes...

  • Page 68: Only For Training And Service Purposes

    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 - 69 - Only for training and service purposes...

  • Page 69: Key Backlight Trouble

    LD307 100ohm R313 LEBB-S14E LD308 100ohm R315 LEBB-S14E LD309 100ohm R318 C535 C534 C534 470n 470n Figure 4.12 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 70 - Only for training and service purposes...

  • Page 70: Only For Training And Service Purposes

    Are all LEDs Check the soldering Working? each R and LED Replace or resolder Backlight will work properly. component Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 71 - Only for training and service purposes...

  • Page 71: Receiver Trouble

    C151 Figure 4.13 CIRCUIT AIN3N AOUT1P RCV_P AOUT1N C144 AOUT2P2 C150 C151 AOUT2P1 RCV_N AOUT2N1 AOUT2N2 AOUT3P AOUT3N LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 72 - Only for training and service purposes...

  • Page 72: Only For Training And Service Purposes

    Change the U103 C150 and C151 fluctuate? Is receiver connected Resolder/Change the receiver Properly? Receiver will work properly. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 73 - Only for training and service purposes...

  • Page 73: Microphone Trouble

    MIC300 C307 C308 SPOB-413S44-RC10BC C309 R320 VINNORN 0.1uF 100ohm VA301 CLOSE TO ABB R321 C315 C316 EVL5M02200 2.2K LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 74 - Only for training and service purposes...

  • Page 74: Only For Training And Service Purposes

    Is it a few tens mV AC? Check the soldering of Resolder component R314,R317,C308 C309,R320 Microphone will work properly. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 75 - Only for training and service purposes...

  • Page 75: Rtc Trouble

    KEYPADROW1 KEY_ROW2 KEYPADROW2 C120 X100 KEY_ROW3 KEYPADROW3 KEY_ROW4 KEYPADROW4 OSCIN R101 OSCOUT CLKIN C121 32.768KHz 1000p MC-146_12_5PF C123 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 76 - Only for training and service purposes...

  • Page 76: Only For Training And Service Purposes

    R107 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 - 77 - Only for training and service purposes...

  • Page 77: Fm Radio

    LM4809LD C233 R223 R224 0.1uF R225 100K 2V8_RADIO C234 R226 R227 0.1uF 4.7K 4.7K FM_SCLK FM_SDATA R228 FM_32K LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 78 - Only for training and service purposes...

  • Page 78: Only For Training And Service Purposes

    15 : 16 : UART_TX UART_TX 17 : UART_RX UART_RX 18 : GND C235 VA205 VA204 HSEJ-18S04-25R ENRY0006401 (50V,J,NP0) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 79 - Only for training and service purposes...

  • Page 79: Only For Training And Service Purposes

    Give the additory solder in TP1, U203 soldering TP1, U203 Check a condition of FM_radio Replace Board Performance Finish LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 80 - Only for training and service purposes...

  • Page 80: Download

    5. DOWNLOAD 5. DOWNLOAD 5.1 Download A. Download Setup Figure 5.1 describes Download setup Figure 5.1 Download Setup Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 81 - Only for training and service purposes...
  • Page 81 5. DOWNLOAD B. Multi Download Procedure 1. Run GSM Multi Download program and select Setting KP135 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 82 - Only for training and service purposes...
  • Page 82 2. Select Configuration from the menu and you may see this window 3. Press key to select DLL file and press Open KP135 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 83 - Only for training and service purposes...
  • Page 83 5. Select AlchemyData.mot and press open 6. Repeat step 4-5 to select CodeData.mot 7. Repeat step 4-5 to select FlexData.mot KP135 KP135 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 84 - Only for training and service purposes...
  • Page 84 8. Check if the ADI option is set to Hermes 9. Press OK to end Configuration KP135 KP135 KP135 KP135 KP135 KP135 KP135 Select Rate Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 85 - Only for training and service purposes...
  • Page 85 11. Once downloading is started, press STOP button to keep from re-downloading after downloading is completed. KP135 KP135 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 86 - Only for training and service purposes...

  • Page 86: Block Diagram

    6. BLOCK DIAGRAM 6. BLOCK DIAGRAM Figure 6.1 LG-KP235 Block Diagram Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 87 - Only for training and service purposes...
  • Page 87 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 88 - Only for training and service purposes...

  • Page 88: Circuit Diagram

    USC100 FM_32K USC6 NC28 AUXOP AUXON C152 C153 C154 C155 Shield CAN (Finger Type) OJ100 OJ101 OJ102 OJ103 - 89 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 89 FM_SDATA R228 FM_32K VBAT 2V8_RADIO U204 FM_LDO_EN STBY R229 BGND VOUT R231 C236 BH28FB1WHFV C237 100K RADIO DETECT - 90 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 90 2V85_VSIM 2V85_VSIM 2V85_VSIM R331 J300 4.7K R332 nSIM_RST SIM_DATA SIM_CLK GND4 GND1 C325 C324 GND3 GND2 220n 1000p - 91 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 91 C440 C441 C442 C443 (300mA) (300mA) 2V8_VEXT VBAT 2V8_AIT_CAM 1V8_AIT_CAM U401 RT9011-MGPQW EUSY0319001 VOUT1 VOUT2 C444 C445 C446 - 92 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 92 TO PART_NO SFSB0001301 X500 TSX-3225_26MHZ 26MHz EXXY0024401 MODE V_LOGIC TX_EN GSM900/GSM850 RX DCS1800/PCS1900 RX GSM900/GSM850 TX DCS1800/PCS1900 TX - 93 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 93 - 94 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 94: Bga Ic Pin Check

    8. BGA IC Pin Check 8. BGA IC Pin Check AD6724 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 95 - Only for training and service purposes...
  • Page 95 8. BGA IC Pin Check AIT701G Do Not Use Do Not Use ot Use LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 96 - Only for training and service purposes...
  • Page 96 8. BGA IC Pin Check S71PL256N Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 97 - Only for training and service purposes...
  • Page 97 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 98 - Only for training and service purposes...

  • Page 98: Pcb Layout

    9. PCB LAYOUT - 99 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 99 Rx Sensitivity Or Tx power FL500 B9308 Rx Sensitivity Or Tx power U500 SKY77518 No Tx power KP135-SPFY0164001-1.0 BTM - 100 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 100: Engineering Mode

    All Calls Change Backlight UART Off Reset Backlight frequency Buzzer Buzzer band Vibrator Vibrator Key PAD Battery MicSpkTest Audio Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 101 - Only for training and service purposes...

  • Page 101: Bb Test [Menu 1]

    This menu is to test the vibration mode. 1) Vibrator on : Vibration mode is on. 2) Vibrator off : Vibration mode is off. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 102 - Only for training and service purposes...

  • Page 102: Rf Test [Menu 2]

    This menu is to test the Specific frequency band. 1) GSM only 2) DCS only 3) PCS only 4) 850 only 5) Default Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 103 - Only for training and service purposes...

  • Page 103: Mf Mode [Menu 3]

    The sound from MIC is recorded for about 3 seconds, then it is replayed on the speaker automatically. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 104 - Only for training and service purposes...

  • Page 104: Trace Option [Menu 4]

    RF Calibration data, etc. cannot be restored again. 10.7 S/W version [MENU7] This displays software version stored in the phone. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 105 - Only for training and service purposes...

  • Page 105: 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. - 106 - Only for training and service purposes...

  • Page 106: Means Of Test

    After setting them all above, press connect button. e. Press the start button Connect Button Figure 10.3.1 HW test program Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 107 - Only for training and service purposes...
  • Page 107 11. STAND ALONE TEST Figure 10.3.2 HW test setting Figure 10.3.3 Ramping profile LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 108 - Only for training and service purposes...

  • Page 108: 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 - 109 - Only for training and service purposes...

  • Page 109: 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. - 110 - Only for training and service purposes...

  • Page 110: Procedure

    TEST JIG, in general.) 2. Run Hot_Kimchi.exe to start calibration. 3. From the Calibration menu, Select KP135! KP135 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 111 - Only for training and service purposes...
  • Page 111 12. AUTO CALIBRATION 4. Press Calibration START KP135 KP135 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 112 - Only for training and service purposes...

  • Page 112: 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 - 113 - Only for training and service purposes...
  • Page 113 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 114 - Only for training and service purposes...

  • Page 114: Exploded View & Replacement Part List

    13. EXPLODED VIEW & REPLACEMENT PART LIST 13.1 EXPLODED VIEW 16 17 18 25 26 27 28 29 30 34 35 36 - 115 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 115 ASS'Y EXPLODED VIEW - 116 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 116: Replacement Parts

    COMPLEX, (empty), , , , , Without Color MPBT00 PAD,CAMERA MPBT0049301 COMPLEX, (empty), , , , , Black Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 117 - Only for training and service purposes...
  • Page 117 PRESS, STS, , , , , Black MTAZ00 TAPE MTAZ0198601 COMPLEX, (empty), , , , , Without Color LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 118 - Only for training and service purposes...

  • Page 118: Main Component

    ECZH0003202 1 uF,6.3V ,Z ,Y5V ,HD ,1005 ,R/TP 1 uF,6.3V ,Z ,Y5V ,HD ,1005 ,R/TP C112 CAP,CHIP,MAKER ECZH0003202 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 119 - Only for training and service purposes...
  • Page 119 ,[empty] ,[empty] ,[empty] ,[empty] ,[empty] C146 CAP,CERAMIC,CHIP ECCH0000120 39 pF,50V,J,NP0,TC,1005,R/TP C147 CAP,CERAMIC,CHIP ECCH0000120 39 pF,50V,J,NP0,TC,1005,R/TP C148 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. - 120 - Only for training and service purposes...
  • Page 120 ECZH0000826 27 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP C324 CAP,CHIP,MAKER ECZH0001216 220 nF,10V ,K ,X5R ,TC ,1005 ,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 121 - Only for training and service purposes...
  • Page 121 ECCH0000112 15 pF,50V,J,NP0,TC,1005,R/TP C434 CAP,CHIP,MAKER ECZH0003202 1 uF,6.3V ,Z ,Y5V ,HD ,1005 ,R/TP C436 CAP,CERAMIC,CHIP ECCH0000112 15 pF,50V,J,NP0,TC,1005,R/TP LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 122 - Only for training and service purposes...
  • Page 122 C522 CAP,CHIP,MAKER ECZH0004402 ,[empty] ,[empty] ,[empty] ,[empty] ,[empty] C524 CAP,CHIP,MAKER ECZH0000826 27 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 123 - Only for training and service purposes...
  • Page 123 100 Kohm,1/16W ,J ,1005 ,R/TP R105 RES,CHIP,MAKER ERHZ0000527 200 ohm,1/6W ,J ,1005 ,R/TP R107 RES,CHIP,MAKER ERHZ0000406 100 Kohm,1/16W ,J ,1005 ,R/TP LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 124 - Only for training and service purposes...
  • Page 124 470 ohm,1/16W ,J ,1005 ,R/TP R406 RES,CHIP,MAKER ERHZ0000484 470 ohm,1/16W ,J ,1005 ,R/TP R407 RES,CHIP,MAKER ERHZ0000484 470 ohm,1/16W ,J ,1005 ,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 125 - Only for training and service purposes...
  • Page 125 220 ohm,1/16W ,F ,1005 ,R/TP R510 RES,CHIP,MAKER ERHZ0000242 220 ohm,1/16W ,F ,1005 ,R/TP R511 RES,CHIP,MAKER ERHZ0000327 180 ohm,1/16W ,F ,1005 ,R/TP LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 126 - Only for training and service purposes...
  • Page 126 ECZH0001217 470 nF,6.3V ,K ,X5R ,TC ,1005 ,R/TP C535 CAP,CHIP,MAKER ECZH0001217 470 nF,6.3V ,K ,X5R ,TC ,1005 ,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 127 - Only for training and service purposes...
  • Page 127 2200 ohm,1/16W ,J ,1005 ,R/TP R322 RES,CHIP,MAKER ERHZ0000505 680 ohm,1/16W ,J ,1005 ,R/TP R323 RES,CHIP,MAKER ERHZ0000505 680 ohm,1/16W ,J ,1005 ,R/TP LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 128 - Only for training and service purposes...
  • Page 128 RES,CHIP,MAKER ERHZ0000505 680 ohm,1/16W ,J ,1005 ,R/TP R325 RES,CHIP,MAKER ERHZ0000505 680 ohm,1/16W ,J ,1005 ,R/TP FR-4 ,0.8 mm,BUILD-UP 4 ,KP135 MAIN PCB ,; , , , , , , , SPFY00 PCB,MAIN SPFY0164001 VA200 VARISTOR SEVY0003901 5.5 V, ,SMD ,480pF, 1005...

  • Page 129: Accessory

    100-240V ,5060 Hz,5.6 V,.4 A,CE ,AC-DC ADAPTOR ,; ADAPTOR,AC-DC SSAD0028802 ,85Vac~264Vac ,5.6V +/-0.8V ,400mA ,5060 , ,WALL 2P ,I/O CONNECTOR , LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 130 - Only for training and service purposes...
  • Page 130 Note...
  • Page 131 Note...

Table of Contents