LG KP175 Service Manual
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LG KP175 Service Manual

LG KP175 Service Manual

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Internal Use Only
Service Manual
KP175 / KP170
Date: July, 2008 / Issue 1.0

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Summary of Contents for LG KP175

  • Page 1 Internal Use Only Service Manual KP175 / KP170 Date: July, 2008 / Issue 1.0...

  • Page 2: Table Of Contents

    4.14 Microphone Trouble ......74 4.15 RTC Trouble ........76 4.16 Bluetooth (KP175 only) ......78 4.17 FM Radio (KP175 only)......80 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 GSM900 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

    0.05 V ≤ 3.42 0.05V (Call), 1minutes/1time (Receiver) Low Voltage Warning ≤ 3.42 0.05 V (Standby), 1minutes/3time (Speaker) 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

    VLOGIC pad. 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 -...

  • 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 U501 GND1 DCS_IN GND2 SKY77518 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, U502)

    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 26MHz 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: Baseband Processor (Ad6726, U102)

    • GSM 900/850 power classes 4 and 5, • DCS 1800 power classes 1 and 2, and • DCS 1900 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 AD6726 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

    SIM_DATA SIM_CLK GND4 GND1 GND3 GND2 C402 C401 C403 C404 220n 1000p Figure 3.5.D2 SIM Interface of AD6726 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

    USB_BYP _CHG _CHG IVDC _CHG_EN IMIN IUSB C244 C245 C246 C247 C248 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_ID : LCD type selection signals • For using 262K color, data buses should be 16 bits. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 28 - Only for training and service purposes...

  • Page 28: Only For Training And Service Purposes

    L_DATAOUT03 L_DATA10 L_DATAOUT10 L_DATA02 L_DATAOUT02 L_DATA09 L_DATAOUT09 L_DATA01 L_DATAOUT01 L_DATA08 L_DATAOUT08 L_DATA00 L_DATAOUT00 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(Ait701G, U301)

    YCbCr is real data interface signal. Figure 3.7.1 AIT701G BLOCK DIAGRAM Figure 3.7.2 SENSOR CHIP BLOCK DIAGRAM LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 30 - Only for training and service purposes...

  • Page 30: Only For Training And Service Purposes

    PDCLK C_MCLK C308 1000p 13M_AIT PMCLK PPXL_CLK C_PCLK VDD_IO0 VDD_IO1 GND_IO0 GND_IO1 C309 C310 Figure 3.7.3 AIT701G CIRCUIT Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 31 - Only for training and service purposes...

  • Page 31: Keypad Switches And Scanning

    VA403 ICVN0505X150FR R422 KEY_COL0 R424 KEY_COL1 R425 KEY_COL2 R426 KEY_COL3 R427 KEY_COL4 Figure 3.8 Keypad Switches and Scanning LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 32 - Only for training and service purposes...

  • Page 32: Microphone

    SPOB-413S44-RC10BC VINNORN R221 100ohm CLOSE TO ABB R223 C227 C228 2.2K Figure 3.9 Connection between Microphone and AD6726 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 33 - Only for training and service purposes...

  • Page 33: Main Speaker

    AMP_SHDN _SHUTDOWN SPK_OUT_P BYPASS R208 100K C212 220n C213 R209 Figure 3.10 Connection between Speaker, Amp and AD6726 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 34 - Only for training and service purposes...

  • Page 34: Headset Interface

    FB801 1800 C232 FB802 1800 HS_OUT_R IO_P6 C233 C234 IO_P7 JACK_DETECT R230 RPWRON Figure 3.11 HEADSET JACK INTERFACE Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 35 - Only for training and service purposes...

  • Page 35: Key Back-Light Illumination

    R412 C408 R413 R414 LD400 LD401 LD402 LD403 LD404 LD405 KEY_BACKLIGHT VA401 ICVN0505X150FR 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: Lcd Back-Light Illumination

    R312 1.5K LCD_DIM_CTRL EN_SET MLED1 R313 C314 C315 MLED2 100K C316 C317 Figure 3.13 MAIN LCD BACKLIGHT ILLUMINATION Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 37 - Only for training and service purposes...

  • Page 37: Vibrator

    VBAT VIBRATOR KDS114E J401 D400 C409 R420 (50V,J,NP0) Q400 R421 VIBRATOR KTC4075E R423 (1608) 100K 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

    USB_BYP _CHG _CHG IVDC _CHG_EN IMIN IUSB C244 C245 C246 C247 C248 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

    PAM +ASM (SKY77518) 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

    R706 Mobile SW Change X500 CIRCUIT R706 R514 2V75_VVCXO C512 0.1u C513 0.1u 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 VBAT EGSM RX C508 C510 0.01u Tx_EN DCS_RX VBATT GSM_RX GND9 U501 V_LOGIC 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 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 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 (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

    Mobile SW R706 Change X500 CIRCUIT R706 R514 2V75_VVCXO C512 0.1u C513 0.1u 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

    VBAT EGSM RX C508 C510 0.01u Tx_EN DCS_RX VBATT GSM_RX GND9 U501 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 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 49 - Only for training and service purposes...

  • Page 49: Only For Training And Service Purposes

    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 U502 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

    CLKOUT_GATE 100K MCLKEN CLKOUT MCLK PWRON D101 KDS114E DBBON GPIO_48 R109 100K NRESET _RESET R112 3300 RESET2P8 NC22 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

    Replace U100 and Re-download software 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

    C305 C306 C307 VUSB _PPR _PPR USB_BYP _CHG _CHG IVDC _CHG_EN IMIN IUSB C244 C245 C246 C247 C248 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

    C245 = 6.4V ? Resolder the Are U300,FL201 U300, FL201 well-soldered? Replace the Battery is charged? U205 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

    Figure 4.6 CIRCUIT VBAT VIBRATOR KDS114E J401 D400 C409 R420 (50V,J,NP0) Q400 R421 VIBRATOR KTC4075E R423 (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

    Of D400,R420 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 U301 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

    L_DATAOUT14 R315 LCD_RESET LCD_RESET_OUT L_DATA13 L_DATAOUT13 100ohm L_DATA12 L_DATAOUT12 C706 L_DATA11 L_DATAOUT11 L_DATA10 L_DATAOUT10 L_DATA09 L_DATAOUT09 L_DATA08 L_DATAOUT08 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 FL304,FL305 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) U301 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 _WAIT PHWAIT_ PDCLK C_MCLK C308 1000p 13M_AIT PMCLK PPXL_CLK C_PCLK VDD_IO0 VDD_IO1 GND_IO0 GND_IO1 C309 C310 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 Filter FL302 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

    BYPASS R208 100K C212 220n C213 R209 SPEAKER R203 SPK_OUT_N CN201 C206 R206 SPK_OUT_P C210 C211 17-8T-01PP SUSY0022601 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

    R207,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 R401 J400 R402 SIM_RST SIM_DATA SIM_CLK GND4 GND1 GND3 GND2 C402 C401 C403 C404 220n 1000p 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

    R225 100K 100K R227 HS_OUT_L FB801 1800 C232 FB802 1800 HS_OUT_R IO_P6 C233 C234 IO_P7 JACK_DETECT R230 RPWRON 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 U102 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

    R409 R410 R411 R412 C408 R413 R414 LD400 LD401 LD402 LD403 LD404 LD405 KEY_BACKLIGHT VA401 ICVN0505X150FR 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

    AOUT1N RCV_N AOUT2P1 C147 C148 AOUT2P2 AOUT2N1 AOUT2N2 AOUT3L AUXOP_L AOUT3R AUXOP_R C149 C150 C151 C152 SPK_P_ABB SPK_N_ABB 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 U102 C147 and C148 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

    100ohm VINNORP MIC201 C221 C222 C223 0.1u SPOB-413S44-RC10BC VINNORN R221 100ohm CLOSE TO ABB R223 C227 C228 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 C227,C228,C223 R219,R216 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

    PA_BAND GPIO_0 32.768KHz R106 C122 nFM_RESET GPIO_1 3.3M BT_CTS GPIO_2 VIBRATOR GPIO_3 BT_RTS GPIO_4 T_Detect GPIO_5 CAM_INT GPIO_6 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

    R105 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: Bluetooth (Kp175 Only)

    BT_CTS TP604 RF_ACTIVE_GPIO4 UART_RXD DEBUG_TX TP605 BT_PRIORITY_STATUS_GPIO3 UART_TXD DEBUG_RX TX_CONFX_WLAN_ACTIVITY_GPIO2 TP606 BT_DBB_INT HOST_WAKE_USB_DETACH_GPIO_1 HUSB_DN TP607 DBB_BT_INT BT_WAKE_GPIO_0 HUSB_DP 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

    _BT_RST check at TP600? U102 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 - 79 - Only for training and service purposes...

  • Page 79: Fm Radio (Kp175 Only)

    SI4702-C19-GM nFM_RESET _RST R701 C702 100K R702 100K C703 0.1u R703 R704 4.7K 4.7K FM_SCLK FM_SDATA R705 BT_32K LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 80 - Only for training and service purposes...

  • Page 80: Only For Training And Service Purposes

    VGP at C700 Replace Check BT_32k at R705? U102 Replace FM_Radio work is good? U700 FM_radio will work properly Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 81 - Only for training and service purposes...

  • Page 81: 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. - 82 - Only for training and service purposes...
  • Page 82 5. DOWNLOAD B. Multi Download Procedure 1. Run GSM Multi Download program and select Setting Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 83 - Only for training and service purposes...
  • Page 83 2. Select Configuration from the menu and you may see this window 3. Press key to select DLL file and press Open LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 84 - Only for training and service purposes...
  • Page 84 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 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 85 - Only for training and service purposes...
  • Page 85 8. Check if the ADI option is set to Hermes 9. Press OK to end Configuration Select Rate LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 86 - Only for training and service purposes...
  • Page 86 10. Press START to execute download 11. Once downloading is started, press STOP button to keep from re-downloading after downloading is completed. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 87 - Only for training and service purposes...

  • Page 87: Block Diagram

    6. BLOCK DIAGRAM 6. BLOCK DIAGRAM i t l Figure 8.1 LG-KP175 Block Diagram LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 88 - Only for training and service purposes...
  • Page 88 6. BLOCK DIAGRAM i t l Figure 8.2 LG-KP170 Block Diagram Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 89 - Only for training and service purposes...
  • Page 89 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 90 - Only for training and service purposes...

  • Page 90: Circuit Diagram

    KEYON AOUT2N1 AOUT2N2 NC31 AOUT3L AUXOP_L NC32 AOUT3R AUXOP_R NC33 C149 C150 C151 C152 SPK_P_ABB SPK_N_ABB OJ100 OJ101 - 91 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 91 (18pin 6, 7) VUSB _PPR _PPR USB_BYP _CHG _CHG IVDC _CHG_EN IMIN IUSB C244 C245 C246 C247 C248 - 92 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 92 L_DATAOUT14 R315 LCD_RESET LCD_RESET_OUT L_DATA13 L_DATAOUT13 100ohm L_DATA12 L_DATAOUT12 C706 L_DATA11 L_DATAOUT11 L_DATA10 L_DATAOUT10 L_DATA09 L_DATAOUT09 L_DATA08 L_DATAOUT08 - 93 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 93 J402 AXA463062P T_DATA1 DAT1_2 DUMMY1 T_DATA0 DAT0 T_CLK T_CMD T_DATA3 CD_DAT3 DUMMY2 T_DATA2 DAT2 T_Detect DETECT_A DETECT_B DUMMY3 C419 - 94 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 94 CHANGE THIS DUAL SAW FILTER DCS1800 RX C527 C528 C529 TO PART_NO SFSB0001301 GSM 900 TX C530 DCS1800 TX - 95 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 95 BT_CTS TP604 RF_ACTIVE_GPIO4 UART_RXD DEBUG_TX TP605 BT_PRIORITY_STATUS_GPIO3 UART_TXD DEBUG_RX TX_CONFX_WLAN_ACTIVITY_GPIO2 TP606 BT_DBB_INT HOST_WAKE_USB_DETACH_GPIO_1 HUSB_DN TP607 DBB_BT_INT BT_WAKE_GPIO_0 HUSB_DP - 96 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 96 GND2 nFM_RESET _RST R701 C702 100K R702 100K C703 0.1u R703 R704 4.7K 4.7K FM_SCLK FM_SDATA R705 BT_32K - 97 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 97 - 98 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 98: Bga Ic Pin Check

    8. BGA IC Pin Check 8. BGA IC Pin Check U102 AD6726 (EUSY0364401) Top View Not use Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 99 - Only for training and service purposes...
  • Page 99 8. BGA IC Pin Check U102 EUSY0288701 S71PL256NC0_TLA084 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 100 - Only for training and service purposes...
  • Page 100 8. BGA IC Pin Check U301 EUSY0318501 AIT701G Not use (NC Pin) 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 U602 EUSY0350101 BCM2046SB1 Not use (NC Pin) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 102 - Only for training and service purposes...

  • Page 102: Pcb Layout

    9. PCB LAYOUT LD400~407 No KEY backlight MIC201 MIC No MIC for SPK phone - 103 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 103 U102 AD6726 Can’t boot the phone U502 AD6548 Tx, Rx Error U501 SKY77518 Tx Power FL500 B9308 Rx sensitivity - 104 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 104: Engineering Mode

    Selection Cell Env. Backlight Battery (Ded) Audio Backlight Tuning Speaker UART Vibrator Setting Camera BT Test MicRcv Keypad Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 105 - Only for training and service purposes...

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

  • Page 106: Elt Mode [Menu 2]

    This is NOT a necessary menu to be used by neither engineers nor users. 10.2.1 Automatic 10.2.2 Manual 10.3 Version [MENU 3] This displays software version stored in the phone. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 107 - Only for training and service purposes...

  • Page 107: Factory Reset [Menu 4]

    3) MVBAT ADC : This displays Battery voltage ADC. 4) AUX ADC : This displays AUX ADC. 5) TEMPER ADC : This displays temperature ADC. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 108 - Only for training and service purposes...
  • Page 108 4. test table 3 2. Downlink 1. aecCtrl 1. Enable / 2. Disable 2. aecCnfg 0x0000 ~ 0xFFFF Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 109 - Only for training and service purposes...

  • Page 109: Network Info [Menu 6]

    2) RF Trst 10.6 Network Info [MENU 6] This displays Cell Enviroment. 9.6.1 Cell Env. (Idle) 9.6.2 Cell Env. (Ded) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 110 - Only for training and service purposes...

  • Page 110: 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. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 111 -...

  • Page 111: 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 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 112 - Only for training and service purposes...
  • Page 112 11. STAND ALONE TEST Figure 10.3.2 HW test setting Figure 10.3.3 Ramping profile Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 113 - Only for training and service purposes...

  • Page 113: Auto Calibration

    PC (for Software Installation) Pentium II class above 300MHz Table 12.2.1 Calibration Equipment List. Figure 12.2.1 Equipment Setup LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 114 - Only for training and service purposes...

  • Page 114: 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 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 115 - Only for training and service purposes...

  • Page 115: Procedure

    TEST JIG, in general.) 2. Run Hot_Kimchi.exe to start calibration. 3. From the Calibration menu, Select KP175! KP175 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 116 - Only for training and service purposes...
  • Page 116 12. AUTO CALIBRATION 4. Press Calibration START KP175 KP175 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 117 - Only for training and service purposes...

  • Page 117: Agc

    This procedure is for battery calibration. You can get main Battery Config Table and temperature Config Table will be reset. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 118 - Only for training and service purposes...

  • Page 118: Exploded View & Replacement Part List

    13. EXPLODED VIEW & REPLACEMENT PART LIST 13.1 EXPLODED VIEW 27 29 30 - 119 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 119 ASS'Y EXPLODED VIEW - 120 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 120: Replacement Parts

    CUTTING, NS, , , , , Black Without MPBU00 PAD,CONNECTOR MPBU0041801 COMPLEX, (empty), , , , , Color Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 121 - Only for training and service purposes...
  • Page 121 TAPE MTAZ0219201 COMPLEX, (empty), , , , , Color Without MLAZ00 LABEL MLAZ0038301 PID Label 4 Array Color LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 122 - Only for training and service purposes...

  • Page 122: Main Component

    ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C112 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 123 - Only for training and service purposes...
  • Page 123 ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP C146 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 124 - Only for training and service purposes...
  • Page 124 22 uF,10V ,M ,L_ESR ,2012 ,R/TP ,; , ,[empty] ,[empty] , C236 CAP,TANTAL,CHIP ECTH0001704 ,[empty] , ,2.2X1.25X1.2MM ,[empty] ,[empty] ,[empty] Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 125 - Only for training and service purposes...
  • Page 125 ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP C401 CAP,CHIP,MAKER ECZH0001216 220 nF,10V ,K ,X5R ,TC ,1005 ,R/TP LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 126 - Only for training and service purposes...
  • Page 126 ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP C604 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 127 - Only for training and service purposes...
  • Page 127 FL303 FILTER,EMI/POWER SFEY0010501 Pb-free FL304 FILTER,EMI/POWER SFEY0015201 SMD ,; ,; ,Filter,LCR FL305 FILTER,EMI/POWER SFEY0015201 SMD ,; ,; ,Filter,LCR LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 128 - Only for training and service purposes...
  • Page 128 39 Kohm,1/16W ,J ,1005 ,R/TP PCB ASSY,MAIN,PAD R203 SAFP0000401 SHORT R204 RES,CHIP,MAKER ERHZ0000405 10 Kohm,1/16W ,J ,1005 ,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 129 - Only for training and service purposes...
  • Page 129 4700 ohm,1/16W ,J ,1005 ,R/TP R303 RES,CHIP,MAKER ERHZ0000406 100 Kohm,1/16W ,J ,1005 ,R/TP R305 RES,CHIP,MAKER ERHZ0000406 100 Kohm,1/16W ,J ,1005 ,R/TP LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 130 - Only for training and service purposes...
  • Page 130 PCB ASSY,MAIN,PAD R601 SAFP0000401 SHORT R602 RES,CHIP,MAKER ERHZ0000486 47 Kohm,1/16W ,J ,1005 ,R/TP PCB ASSY,MAIN,PAD R603 SAFO0000501 0OHM_1005_DNI OPEN Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 131 - Only for training and service purposes...
  • Page 131 VA208 VARISTOR SEVY0004101 5.6 V, ,SMD ,360pF, 1005 X100 X-TAL EXXY0016001 32.768 KHz,20 PPM,7 pF,65 Kohm,SMD ,6.9*1.4*1.3 , LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 132 - Only for training and service purposes...
  • Page 132 47 ohm,1/16W ,J ,1005 ,R/TP R408 RES,CHIP,MAKER ERHZ0000483 47 ohm,1/16W ,J ,1005 ,R/TP R409 RES,CHIP,MAKER ERHZ0000483 47 ohm,1/16W ,J ,1005 ,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 133 - Only for training and service purposes...
  • Page 133 5.6 V, ,SMD ,360pF, 1005 VA401 VARISTOR SEVY0004101 5.6 V, ,SMD ,360pF, 1005 VA403 VARISTOR SEVY0004101 5.6 V, ,SMD ,360pF, 1005 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 134 - Only for training and service purposes...

  • Page 134: Accessory

    100-240V ,5060 Hz,5.6 V,.4 A,CE ,AC-DC ADAPTOR ,; SSAD00 ADAPTOR,AC-DC SSAD0028801 ,85Vac~264Vac ,5.6V+/-0.8V ,400mA ,5060 , ,WALL 2P ,I/O CONNECTOR , Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 135 - Only for training and service purposes...
  • Page 135 Note...

This manual is also suitable for:

Kp170

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