Page 1 Internal Use Only Service Manual LG-P768 Date: October, 2012 / Issue 0.9...
Page 2: Table Of Contents
4.16 Compass or Accelerometer Sensor on/off trouble ....99 4.17 Proximity Sensor on/off trouble ..........101 4.18 Touch trouble ..................103 LGE Internal Use Only - 2 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 3: Introduction
Therefore, note that unauthorized alternations or repair may affect the regulatory status of the system and may void any remaining warranty. LGE Internal Use Only 4/140 Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 3 - Copyright ©...
Page 4 • When returning system boards or parts like EEPROM to the factory, use the protective package as described. LGE Internal Use Only 5/140 Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 4 - Copyright ©...
Page 5: Abbreviations
OPLL Offset Phase Locked Loop LGE Internal Use Only 6/140 Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 5 - Copyright © 2012 LG Electronics. Inc. All right reserved.
Page 6 Voltage Control Temperature Compensated Crystal Oscillator Wireless Application Protocol LGE Internal Use Only 7/140 Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 6 - Copyright © 2012 LG Electronics. Inc. All right reserved.
Page 7: Performance
2.3 Main Parts : GSM Solution Item Part Name Comment AP Chip OMAP4430 : TI CP Chip XMM6260 : IMC LGE Internal Use Only - 7 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 8: Hw Features
: 26 dBm compatibilit GPRS Class 33 EDGE compatibility EDGE Class 33 Plug-In SIM SIM card type 2.85V /1.8V LGE Internal Use Only - 8 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 9 Voice Recording Speaker Phone mode Support Travel Adapter CDROM Stereo Headset Data Cable T-Flash Up to 32GB (External Memory) LGE Internal Use Only - 9 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 10: Sw Features
It depends on available memory amount. Nickname / Website / Events Last Received There is no limitation on the number of Number items. LGE Internal Use Only - 10 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 11 MMS MPEG4 Send / Receive / Save Long Message 172 bytes SMS 5 concatenated Cell Broadcast Download Game Calendar LGE Internal Use Only - 11 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 12 Class 33 Hold / Retrieve Conference Call Max. 7 DTMF Memo pad Memo / Quick memo SyncML Gtalk Email LGE Internal Use Only - 12 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 13: Hw Spec
: -98dBm/-96dBm (2.439%) AM Suppression -98dBm/-96dBm (2.439%) GSM : -31dBm DCS : -29dBm Timing Advance ± 0.5T LGE Internal Use Only - 13 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 14 @1844.5MHz ≤f ≤1879.9MHz <-41dBm/300kHz RW @1884.5MHz ≤f ≤1919.6MHz <-60dBm/3.84MHz RW @2110MHz ≤f ≤2170MHz <-60dBm/3.84MHz RW @2620MHz ≤f ≤2690MHz LGE Internal Use Only - 14 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 15 < 17.5 %, when Pout ≥ -20 dBm < -15 dB at Pout ≥ -20 dBm Peak Code Domain Error LGE Internal Use Only - 15 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 16 +1.5/4 -0.5/+0.5 -0.5/+0.5 -0.5/+0.5 Inner Loop Power Control -0.5/-1.5 -1/-3 -1.5/-4 In Uplink group(10equal command group) +8/+12 +16/+24 LGE Internal Use Only - 16 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 17 Power Ratio (ACLR) > 43 dB @ ±10 MHz Error Vector Magnitude < 17.5 %, when Pout ≥ -20 dBm LGE Internal Use Only - 17 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 18 Sub-Test : 1=11/15, 2=6/15, 3=15/9, 4=2/15, 5=15/15 Leakage > 33 dB @ ±5 MHz Power Ratio > 43 dB @ ±10 MHz (ACLR) LGE Internal Use Only - 18 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 19 ※ACR shall be measured by setting the desired signal's strength 3 dB above the rate-dependent sensitivity specified in min input sensitivity LGE Internal Use Only - 19 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 20 ≥ -10dBm(1Mbps,2Mbps,5.5Mbps,11Mbps) @ FER ≤ 8% Rx Adjacent Channel ≥ 35dB @FER ≤ 8%, Rejection interference input signal -70dBm@fc±25MHz(11Mbps) LGE Internal Use Only - 20 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 21 ※ACR shall be measured by setting the desired signal's strength 3 dB above the rate-dependent sensitivity specified in min input sensitivity LGE Internal Use Only - 21 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 22 < -30 dBm @ 5.35 GHz to 5.47 GHz < -30 dBm @ 5.725 GHz to 26.5 GHz LGE Internal Use Only - 22 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 23 ** Test condition for Standby current consumption should be as below. : Measurement time 1hr, with Agilent & CMT JIG LGE Internal Use Only - 23 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 24 -102 ± 3dBm 1  0 -109 ± 3dBm -104 ± 3dBm No service < -109 dBm By Network Notification LGE Internal Use Only - 24 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 25 3%  2% Low Battery Pop-up 0% ~ 15% : popup at 5%, 15%(No call) POWER OFF 2% under LGE Internal Use Only - 25 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 26: P768 Figures
2. PERFORMANCE LG-P768 Product SPEC 2.7 P768 Figures 2.7 P768 Figures LGE Internal Use Only - 26 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 27: Cic And Service Center
First, download and install the USB Driver. Then, check out the following with the USB communication cable being connected. 1.PC<-> SD CARD Request for development 2.PHONE<-> SD CARD LGE Internal Use Only - 27 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 28 If it is in uncheck condition, please check. ex) 1. Europe<->Europe Request for development 2. Europe<->Continents(North America, Asia etc) LGE Internal Use Only - 28 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 29 Let us know the incompatible apps. We’ll find out what the problems are. Thanks. LGE Internal Use Only - 29 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 30 > (Generally, SMTP user name and password is the same as the e-mail address and password entered in the first place) > Confirm LGE Internal Use Only - 30 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 31 For example, phone or email app is supposed to let the user know any incoming calls or messages even when they are killed. LGE Internal Use Only - 31 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 32 2) AP information might be newly updated. Click the corresponding AP and choose “Forget”, press “Option key > Scan” button and update the AP list. After that, attempt connection.(picture. 3) LGE Internal Use Only - 32 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 33 Check if Settings > More... > Mobile networks > Data enabled is checked. If it is unchecked, check it. LGE Internal Use Only - 33 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 34 PC Suite main screen. Can language be changed? You can change language through Settings - Language & keyboard - Select language LGE Internal Use Only - 34 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 35 It can be executed by pressing power key with pressing Volume Up key + Home key together, with Power Off. LGE Internal Use Only - 35 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 36 It is basically compatible only with external Bluetooth devices. How do you use HDMI? P768 does not support HDMI and MHL features. LGE Internal Use Only - 36 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 37 3. Select wanted contents through searching library. 4. It can be played through selecting player in the player set up category. LGE Internal Use Only - 37 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 38 - It could be a type of file that the device doesn’t support. 4. Uploading can’t be done. - Uploading DMS may not support uploading function. LGE Internal Use Only - 38 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 39 How is the distribution schedule of OS or SW new version known? It can be checked at local LG Electronic service centers or LG Mobile homepage notice page. LGE Internal Use Only - 39 - Copyright ©...
Page 40 What kinds of phone accessories are there? You can purchase it from a local LG Electronics service center or on the internet. What should be done if SmartShare is terminated or stopped when changing USB set up(mass storage device) during Up/Down load? It can’t be controlled by SmartShare because it’s a problem that takes place when...
Page 41 On P768, only 802.11 b,g and n are supported. Hence, it may be slower compared to other terminals supporting 802.11n. LGE Internal Use Only - 41 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 42 How to access the Safe Mode on each model need be described in detail along with Request for development screen captures. LGE Internal Use Only - 42 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 43 1) Default available memory on this phone need be specified with an image attached. Request for development 2) Available memory size for users need be specified. LGE Internal Use Only - 43 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 44: Trouble Shooting
4.1 RF Component <Top> U105 U101 PAM DCDC RFIC(Tranceive) FL101 U102 Filter(ASM) Duplexer(Bank) U103 PAM(MMMB) RF component (WCDMA / GSM) LGE Internal Use Only - 44 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 45 U101 RFIC (Transceiver) U104 Transceiver PMU U102 Duplexer Bank U105 PAM DCDC U103 PAM MMMB FL101 Filter (ASM) LGE Internal Use Only - 45 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 46: Signal Path
WCDMA 1, 8 Band TX Signal PATH A. WCDMA 2100 TX PATH B. WCDMA 900 TX PATH C. COMMON TX/RX PATH LGE Internal Use Only - 46 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 47 WCDMA 1, 8 Band RX Signal PATH A. WCDMA 2100 RX PATH B. WCDMA 1900 RX PATH C. COMMON TX/RX PATH LGE Internal Use Only - 47 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 48 D. GSM 900 RX PATH E. GSM 1800 RX PATH F. GSM 1900 RX PATH G. COMMON TX/RX PATH LGE Internal Use Only - 48 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 49: Checking Tcxo Block
The output frequency (26MHz) of TCXO (X101) is used as the reference one of PMB5712 X101 1XXA26000FBA VCONT 26MHz EAW61443801 C130 C131 Schematic of the Crystal Part (26MHz) LGE Internal Use Only - 49 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 50 1.7V ≥ VCC ≥ 1.9V Check the PMB5712 Check TP2 Check soldering and 26 MHz Signal components TCXO is OK LGE Internal Use Only - 50 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 51: Checking Wcdma Block
4.4 Checking WCDMA Block START Check TCXO Block Check RF Switch (M/S) Check TX/RX Level Re-download & Cal Change the Board LGE Internal Use Only - 51 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 52 4. TROUBLE SHOOTING 4.4.1. Checking RF TX Leve (WCDMA)l Test Point (TX Level) LGE Internal Use Only - 52 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 53 GSM_HB_TX GSM_HB_TX SDI_CLK SPI_CLK SDI_DAT SPI_DRW C142 C141 0.1u 100n CP_OUT Schematic of WCDMA Band1, 8 Tx Block LGE Internal Use Only - 53 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 54 Check TP2 Over 21dBm? Check Separator Check TP3 Over 21dBm? Check Duplexer Check TP4 Over 6dBm? Check PAM Check PMB5712 LGE Internal Use Only - 54 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 55 4. TROUBLE SHOOTING 4.4.2. Checking RF Rx Level (WCDMA) Test Point (RF Rx Level) LGE Internal Use Only - 55 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 56 Set the phone Rx is ON Check TP1 Signal exist? Check RF Switch (M/S) Check TP2 Check Separator Signal exist? Check Duplexer, PMB5712 LGE Internal Use Only - 56 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 57: Checking Gsm Block
4.5 Checking GSM Block START Check TCXO Block Check RF Switch (M/S) Check TX/RX Level Re-download & Cal Change the Board LGE Internal Use Only - 57 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 59 SDI_EN SPI_SS GSM_HB_TX GSM_HB_TX SDI_CLK SPI_CLK SDI_DAT SPI_DRW C142 C141 0.1u 100n CP_OUT Schematic of GSM850/EGSM/DCS/PCS Tx Block LGE Internal Use Only - 59 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 60 Over 31 dBm(GSM850, EGSM) Check Separator Over 28 dBm(DCS, PCS) Check TP3 Check PAM Over 12 dBm Check PMB5712 LGE Internal Use Only - 60 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 62 Set the phone Rx is On Check TP1 Signal exist? Check RF Switch (M/S) Check TP2 Signal exist? Check Separator Check Duplexer, PMB5712 LGE Internal Use Only - 62 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 63: Gps/Wifi/Bt Rf Components
Description Reference No. Description FL201 Filter U203 GPS IC U201 GPS LDO X201 GPS TCXO U202 GPS LNA LGE Internal Use Only - 63 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 64 Reference No. Description FL301 Filter U301 2Ghz FEM FL302 Filter Separator U304 5Ghz FEM U302 WIFI/BT/FM Chip X301 Crystal LGE Internal Use Only - 64 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 65: Gps/Wifi/Bt Signal Path
GPS ANT GPS ANT U200 GPS LDO FL200 X200 GPS Filter TCXO U201 U202 GPS LNA GPS IC LGE Internal Use Only - 65 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 66 WIFI Signal Path X301 U304 Crystal 5Ghz FEM U302 Wifi/BT/ FM IC U301 2Ghz FEM Wifi Tx Signal Path LGE Internal Use Only - 66 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 67: Power On Troubleshooting
CDC3S04: VCXIO VDDA_CSI2 , VDDA_UNI1, VDDA_USB1OTG_1P8V, VDDS_1P8_FREF VDD_CORE VCORE3 VDD_DLL0/1_LPDDR21/2 VCORE1 VDD_MPU VCORE2 VDD_IVA_AUDIO TWL6030 Power on sequence LGE Internal Use Only - 67 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 68 4. TROUBLE SHOOTING XMM6260 PMU Power on sequence XMM6260 PMU Power on sequence LGE Internal Use Only - 68 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 69 VCORE2_OMAP_IVAUD(TP7) VSEL_VCORE3(TP8) up? Is clock OK? Change the TCXO and X-tal X701(TP9) : 32.768Khz Change the main board LGE Internal Use Only - 69 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 70 BOTTOM view of LGP768 L706, VSEL1.29V(TP5) L705, VSEL_2.1V(TP4) L704, VSEL_1.8V(TP2) L707,VSEL_VMEM(TP3) X701, CLOCK(TP9) L702,VCORE2_OMAP_IVAUD(TP7) L703, VSEL_VCORE3(TP8) L701, VCORE1 _OMAP_MPU(TP6) LGE Internal Use Only - 70 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 71: Charger Troubleshooting
During charging operation test point signal goes low and when stop charging goes high. R760 (pull-up resistor), CHARGE_IRQ_N (not VSEL_1.8V point of R760) LGE Internal Use Only - 71 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 72 4.8V (or 5.0V) Is it charging properly After turning on? R760 Signal is correct? Change the Main Board LGE Internal Use Only - 72 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 73: Usb Trouble Shooting
USB_D+(TP2) is USB_D+ (TP2) is 3.3V? Check IC701 Check IC701 3.3V? Change the mainboard Change the Main board LGE Internal Use Only - 73 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 74 R911 FRONT_KEY_LED_EN/ Q902 4.7K LSCR523EBFS8 EBK61572201 HIGH : ON LOW : OFF USBA0_OTG_DM/UART3_TX_IRTX/UART2_TX/GPIO_180/SAFE_MODE USB_DM_OMAP USBA0_OTG_DP/UART3_RX_IRRX/UART2_RX/GPIO_179/SAFE_MODE USB_DP_OMAP MUIC USBA0_OTG_CE LGE Internal Use Only - 74 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 75 C719 (USB_VBUS)_TP1 IC701 (MUIC – TI TSU5611YZPR) IC701 (MUIC – TI TSU5611YZPR) C719 (USB_VBUS)_TP1 USB D+(TP2) USB D+(TP2) LGE Internal Use Only - 75 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 76: Audio Trouble
Change the RF key PCB. Is speaker sound OK? Change the TWL6040(U803) Is speaker sound OK? TP3,TP4 Change the mainboard LGE Internal Use Only - 76 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 77 Check the connector To Main board Check the connector To Main board Connector Connector F-PCB Front-side view F-PCB back-side view LGE Internal Use Only - 77 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 78 TP3 AUD_SPK_N HFLP1 HFLN1 FB803 HFRP1 AUD_SPK_P FB804 HFRN1 AUD_SPK_N HFLP2 C839 C840 TP4 AUD_SPK_P HFLN2 HFRP2 HFRN2 LGE Internal Use Only - 78 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 79 Is receiver sound OK? Change receiver ok? (TP2) Change theTWL6040(U803) Is speaker sound OK? Change the mainboard LGE Internal Use Only - 79 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 80 (2) Check the output signal of Audio Codec (2) Check the output signal of Audio Codec Main PCB Back side view LGE Internal Use Only - 80 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 81 And check the voice siganl. Is voice signal OK? (TP1) Change the TWL6040(U803) Is the voice siganl OK? (TP2) Change the mainboard LGE Internal Use Only - 81 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 82 TWL6040 C829 output signal of SUB MIC C825 output signal of Main MIC Main PCB Front side view LGE Internal Use Only - 82 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 83 Change the sub mic. Is voice signal OK Change the TWL6040(U803) Is the voice signal OK? (TP4) Change the mainboard LGE Internal Use Only - 83 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 84 (1) Check the SUB MIC and MiC’s Hole SUB MIC TWL6040 C829 output signal of SUB MIC C825 output signal of Main MIC SUB MIC LGE Internal Use Only - 84 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 85 Check the left signal and detection signal that be shorted when headset inserted, also confirm Ear MIC Signal, HIGH LGE Internal Use Only - 85 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 86: Camera Trouble(8M/ 0.3M)
DVDD(TP2), AVDD(TP3) Check the camera signals MCLK(TP4), Change the main board MIPI_CLK(TP5), MIPI_DATA(TP6) Change the camera Camera is OK? LGE Internal Use Only - 86 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 87 -> revB(EAN62335301) for CI VBAT revA(DNI) -> revB(Deleted) U1003 RP103K121D-TR VOUT 1.8V_5M_LDO_EN TP2:C1023 C1023 C1024 EUSY0374201 1.2V_VDIG LGE Internal Use Only - 87 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 88 ENBY0034201 GB042-24S-H10-E3000 ZD1004 ZD1001 R1003 DNI -> 0ohm (P768) ZD1002 PESD5V0V1BL ESD9B5_0ST5G TP2:C1023 TP3:C1012 TP6:FL1002 TP1:C1013 TP5:FL1001 TP4:R1006 LGE Internal Use Only - 88 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 89 U1001 I2C3_SCL LP8720TLX CAM_SUBPM_EN EUSY0227205 LDO4 R1002 100K TP2:C1011 DEFSEL IDSEL LDO5 VT_2.8V_VANA C1010 C1011 C1012 C1013 C1014 LGE Internal Use Only - 89 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 90 2.2u 2.2u 2.2u 2.2u rev1.0 -> rev1.1 : Change for CI, 2.2uF -> 1uF C746,C748,C750,C751,C752,C754,C756 TP2:C1011 TP1:C750 TP2:C1010 LGE Internal Use Only - 90 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 91: Main Lcd Trouble
3. LCD BL Boost output LED_A(C906)-TP3 Check EMI Fiter 1. Damage Check 2. Signal Check (TP4) Change the Main board The LCD works LGE Internal Use Only - 91 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 92 I2C2_SDA I2C2_SCL LED_C1 HVLED1 LCD_CP_EN LED_C2 HWEN HVLED2 U902 LM3533TMX-40 CPOUT EAN62410501 LCD_PWM LVLED1 LVLED2 LVLED3 LVLED4 LVLED5 LGE Internal Use Only - 92 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 93 4. TROUBLE SHOOTING LCD BL LED_A(C906)TP3 VCC_LCD_2.8V(C905)TP1 ICVCC_LCD1.8V(C910)TP2 LGE Internal Use Only - 93 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 94: Sim Detect Trouble Shooting
SIM inserted to LG-P760  2.9V_USIM(C1228) goes to 2.9V  Triggers SIM clock, reset and data. SIM inserted to LG-P768 -> 2.9V_USIM(C1228) goes to 2.9V -> Triggers SIM clock, reset and data. Block Diagram of USB & UART connection is shown below Block Diagram of USB &...
Page 95 100n ON-SEMI ESD7951ST5G 5V 5.4V min. 12.9V 1A 150mW 1A R/TP 2P ON-SEMI revB(TVS)->rev1.0(TVS Vender changed) TP1 2.9V_USIM(C1228) LGE Internal Use Only - 95 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 96: Vibrator Troubleshooting
(1) Check the Haptic FeedBack [On] Menu => System settings => Sound => Vibrate on touch Check [On] LGE Internal Use Only - 96 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 97 (3) Check the Signal of TP (MAIN Board) TWL_LDO_3.2V R803 TP805 VIB_L_P VIBE_EN U806 VIBE_PWM C847 ISA1000A MODE GAIN VIB_L_N C848 EAN62532201 R807 C849 R811 LGE Internal Use Only - 97 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 98 4. TROUBLE SHOOTING TP2:Check high TP3:Check PWM signal TP1:Check 3.0~3.2v LGE Internal Use Only - 98 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 99: Compass Or Accelerometer Sensor On/Off Trouble
Menu Function is OK? Check the VSEL_1.8V Change the main board TP1(C830) Change the Chip Accelerometer woeks LGE Internal Use Only - 99 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 100 0.1u I2C4_SCL I2C4_SDA MOTION_INT1 16 15 INT2 U801 BMC050 COMPASS_DRDY DRDY BOSCH EAN62222201 Compass & Accelerometer Sensor(U801) TP1(C830) LGE Internal Use Only - 100 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 101: Proximity Sensor On/Off Trouble
Check Sensor_3.0V(TP1) & I2C3_SDA & SCL & PROX_INT Output(TP2) Output work well? Change the main board Function is OK? LGE Internal Use Only - 101 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 102 -> rev1.1 : Change for CI, 2.2uF -> 1uF P760_RevD/P768_RevB : C853 Added SENSOR_3.0V TP1 : C852 PROXI_3.0V TP2 : C853 LGE Internal Use Only - 102 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 103: Touch Trouble
Check Touch Power 1. VSEL_1.8V(R1119)-TP1 Change Touch module Touch is OK? 2.Touch_3.0V(C1112)-TP2 Change the Main board The LCD works LGE Internal Use Only - 103 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 104 TOUCH_RESET TOUCH_INT_N R1109 TOUCH_Maker_ID 51338-9873 ENBY0058601 C1112 C1114 2.2u C1112(TP2) ESD9B5_0ST5G Touch Conn 1.0T-> 1.5T Change C1112(TP2) R1119(TP1) LGE Internal Use Only - 104 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 105: Download
TOOL INFORMATION TOOL VERSION DLL NAME USB DRIVER Please Check the Version to “B2B” Name Part No. D/L Cable LGE Internal Use Only - 105 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 107 5. DOWNLOAD P768 MS695 [LGFlashTool1.3.77.21]LGMS695_20120208_Download P768 LGE Internal Use Only - 107 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 118 5. DOWNLOAD [LGFlashTool1.3.77.21]LGMS695_20120208_Download LGMS695_20120208.dll LGMS695_20120208 P768 MS695 [LGFlashTool1.3.77.21]LGMS695_20120208_Download P768 MS695 P768 MS695 LGE Internal Use Only - 118 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 125: Block Diagram
32.768KHz (TWL6030) JTAG JTAG VCHG PWR-ON KEY Charger 32.768KHz DP3T SWITCH MUIC Fuel gauge Coin cell Battery VBAT LGE Internal Use Only - 125 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 126 AE24 ABE_DMIC_CLK1/GPIO119 IPC_MRDY EINT2 M8 AF24 ABE_DMIC_DIN1/GPIO120 RESET_PMU_N AH11 HSI2/CAREADY/GPIO164 RESET_PWRDWN_N J3 IFX_PWR_ON_SW/ J1 SIM_CD/GPIO_WK3 ON1 H2 TWL6030 LGE Internal Use Only - 126 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 127 SYS_NRESWARM SYS_nRESWARM VBAT_IN NRESPWRON SYS_NRESPWRON SYS_nRESPWRON TWL6030 OMAP4430 I2C1 GPIO_WK3 IFX_PWR_ON_SW GPIO_164 VBAT RESET_PMU_N RESET_PWRDWN_N XMM6260 MP_MCP (MEMORY) LGE Internal Use Only - 127 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 128 DI3_TX_DATX D12 DI3_TX_DATX RX_L2 B5/GSM850 RX_B5_L2 DI3_TX_DATX RESET_N XRESET_N RX_BAND8_1 RX_L1X TRX1 ANT_Band8 RX_B8_L1X B8/EGSM RX_BAND8_2 RX_L1 RX_B8_L1 LGE Internal Use Only - 128 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 129 VSPI DI3_TX_DAT (RFMD) DI3_TX_DAT C12 DI3_TX_DAT DI3_TX_DATX D12 DI3_TX_DATX PA_RF RF_OUT DI3_TX_DATX PA_RF FB_AM PA_POW_DET PA_POW_DET RESET_N XRESET_N LGE Internal Use Only - 129 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 130 VOUT_FB PAM DCDC VSPI L_OUTA RF6561 L_OUTB (RFMD) VDD_2.85V VBAT VSPI VSPI SP8T, ASM RF6261B RF6361A (RFMD) (RFMD LGE Internal Use Only - 130 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 131 UART3_TX_RTS_SD VCC_GPS_2V8 RFIP ALM-3012 GPS_RESET_N GPIO_1 RST_N GPS_26MHz TCXO/TSXO GPS_PWR_ON GPIO_0 REGPU TCXO VDD_GPS_TCXO_1.8V VDD_AUX_O VCC_GPS_2V8 VDD_AUX_IN (NXP) LGE Internal Use Only - 131 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 132 BT_PCM_CLK RF_SW_CTRL_6 BT_PCM_DOUT WLAN_SW_[7] VREF RF_SW_CTRL_7 BT_PCM_IN McBSP1_DX_GPIO[116] OMAP4430 XO_IN TWL6030 WRF_XTAL_OP XTAL CLK32K_GATE XO_OUT 37.4MHz WRF_XTAL_ON CLK32KG LGE Internal Use Only - 132 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 133 MEM_RAS_N DDR_CAS_N MEM_CAS_N /CAS /WED MEM_BC1_N MEM_BC1_N UDQM MEM_BC0_N LDQM MEM_BC0_N DDR_DQS[1] UDQS MEM_BC3_N DDR_DQS[0] MEM_BC2_N LDQS VSD2_1.8V LGE Internal Use Only - 133 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 134 I2C2_SCL (Tovis) I2C2_SCL LED_C2 (LM3533 I2C2_SDA I2C2_SDA LCD_CP_EN GPIO98 Battery VCI_LCD_2.8V ● LD6805K/28P IOVCC_LCD_1.8V LCD_EN LD6805K/18P GPIO27 ● LGE Internal Use Only - 134 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 135 8M MCLK FREF_CLK1_OUT/GPIO_181 8M_RESET_N GPIO_24 1.2V_8M_VDIG 1.2V_8M_LDO_EN GPIO_59 I2C2_SCL I2C2_SCL I2C2_SDA I2C2_SDA FLASH_EN FLASH GPIO_191 GSM_TXON_IND FLASH XMM6260 VBAT LGE Internal Use Only - 135 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 136 GPIO 14 TOUCH_RESET GPIO 159 TOUCH_INT GPIO 52 I2C2_SCL I2C2_SCL I2C2_SDA I2C2_SDA OMAP4430 VSEL_1.8V TWL6030 TOUCH_3.0V Touch Module LGE Internal Use Only - 136 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 137 (PMIC) IPC_PCM_DOUT Call ABE_McBSP2_DX I2S2_RX CDC3S04 IPC_PCM_SYNC I2S2_WA0 ABE_McBSP2_FSX (Buffer IC) SE : Single ended, DIFF : Differential LGE Internal Use Only - 137 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 138 I2C2_SDA Touch I2C2_SDA(GPIO_129) TOUCH_3.3V TOUCH_INT_N GPIO_52 GPI_175 GPIO_171 KEY_R[0] GPI_176 down KEY_C[0] KEY_R[1] GPIO_143 I2C1_SCL/SDA VOLUME KEY TWL6040 LGE Internal Use Only - 138 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 139 JTAG UART_RX_IFX USIF1_RXD_MRST IFX_TOD USIF1_TXD_MTSR UART_TX_IFX IFX_TDI USB_D+_IFX IFX_TMS USB_DPLUS USB_D-_IFX USB_DMINUS IFX_TCK IFX_TRST TRST_N XMM6260 IFX_TRIG_IN TRIG_IN LGE Internal Use Only - 139 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 140 VUSB_ANA_1.8V (40mA) VUSB_ANA VDD_USB_ANA VUSB_PD_1.1V (40mA) VUSB_PD VDD_USB_PD VUSB_IO_3.1V (40mA) VUSB_IO VDD_USBIO VIO_1.2V (60mA) VIO_12 VDD_IO12 NAND VSD2_1.8V LGE Internal Use Only - 140 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 141 VMEM VANA[25mA] POP LPDDR VSEL_1.23V[600mA,1.225V] VDDCA V1V29 VSEL_1.23V[600mA,1.225V] VDDQ V1V29 VBAT OMAP4430 VPMIC_VRTC VRTC [25mA] Booting Config PU LGE Internal Use Only - 141 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 142 VBAT IOVCC_LCD_1V8(300mA) VCC_LCD_2V8 (300mA) VBAT Dual LDO VT_1.8V_VDIG VT_2.8V_VANA 2.8V_5M_VANA 1.8V_5M_VIO PMIC VBAT 2.8V_5M_VCM LED_C VBAT LED_A BACKLIGHT LGE Internal Use Only - 142 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 143 SUB PMIC(CAM POWER) 8M_CAM VT_CAM (VGA) I2C3 CAM_PMIC MUIC Proximity Compass + Motion I2C4 Charger IC Fuel Gauge LGE Internal Use Only - 143 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 144: Circuit Diagram
L_OUTB C178 C179 C185 C177 3.3u 220n 220n C181 C114 C182 C183 220n 5.6p 5.6p revA(DNI) -> revB(1u) - 144 - LGE Internal Use Only Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 145 VSSC2 VSSC3 VSEL_1.8V VSEL_1.8V C213 C214 C215 2.2u 2.2u 2.2u TCXO for GPS OJ201 OJ202 OJ204 GND1 GND2 - 145 - LGE Internal Use Only Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 146 C350 C351 C343 C342 4.7p 4.7p P760_RevD/P768_RevB : C350 20p -> 15p P760_RevD/P768_RevB : C351 15p -> 18p - 146 - LGE Internal Use Only Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 147 UART1_RX_IPC UART_RX_SW IFX_USB_VBUS_EN (Active high) C442 R416 100n EUSY0186504 4.7K EBK61693301 S1,S2 UART_RX_IFX(1A) UART_TX_IFX(2A) UART1_TX_IPC(1B0) UART1_RX_IPC(2B0) UART_RX_SW(1B1) UART_TX_SW(2B1) - 147 - LGE Internal Use Only Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 148 SYS_nRESPWRON R523 38.4MHz UART_TX_IFX UART4_TX_OMAP ADR_A0 GND_DIG GND1 GND2 UART_RX_IFX UART4_RX_OMAP C509 R526 R527 EXST0002601 0.1u VRTC_1.8V ENBY0053801 - 148 - LGE Internal Use Only Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 149 POP_VACC_LPDDR2_B28 SC603 SC606 POP_VACC_LPDDR2_B2 SC624 SC625 SC607 SC608 SC626 SC629 SC609 SC610 SC628 SC630 SC611 SC612 SC631 SC632 - 149 - LGE Internal Use Only Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 150 C775 C774 C771 OVLO C770 EUSY0365101 rev1.0 -> rev1.1 : Change for CI, 2.2uF -> 1uF EUSY0374601 C746,C748,C750,C751,C752,C754,C756 - 150 - LGE Internal Use Only Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 151 R808 AMIC_GND GAIN R809 HS_MIC_GND VIB_L_N INT2 U801 C848 BMC050 EAN62532201 COMPASS_DRDY DRDY R807 C849 BOSCH EAN62222201 R811 - 151 - LGE Internal Use Only Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 152 KEY_C[1] - KEY_R[2] : HOME Key KEY_R[0] Vol. Up KEY_C[0] - KEY_R[0] : Vol. Up KEY_C[0] - KEY_R[1] : Vol. Down - 152 - LGE Internal Use Only Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 153 VBAT revA(DNI) -> revB(Deleted) U1003 RP103K121D-TR VOUT 1.8V_5M_LDO_EN EBP61561901 : Aptina 1/11¡±, Cowell, 0 deg C1023 C1024 EUSY0374201 - 153 - LGE Internal Use Only Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 154 EDTY0012501 UCLAMP3311T TOUCH_RESET TOUCH_INT_N R1109 AMIC_GND TOUCH_Maker_ID 51338-9873 ENBY0058601 C1112 C1114 2.2u ESD9B5_0ST5G Touch Conn 1.0T-> 1.5T Change - 154 - LGE Internal Use Only Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 155 100n ESD7951ST5G EAH61634001 ON-SEMI ESD7951ST5G 5V 5.4V min. 12.9V 1A 150mW 1A R/TP 2P ON-SEMI revB(TVS)->rev1.0(TVS Vender changed) - 155 - LGE Internal Use Only Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 156 C1304 100p AMIC_GND FEED FEED CN1305 ZD1305 ZD1306 ZD308 FEED C1306 C1305 C1310 100p HJ-ICT-03Y EU Rev.E: DNI->1pF - 156 - LGE Internal Use Only Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 157 CN1500 KEY_R[0] KEY_C[0] KEY_R[1] KEY_C[1] SIDEKEY_4P KEY_R[0] - KEY_C[0] : Vol. Up KEY_R[1] - KEY_C[1] : Vol. Down - 157 - LGE Internal Use Only Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 158 7. CIRCUIT DIAGRAM POWER_KEY_FPCB POWER KEY ON/OFF/LOCK KB1600 CN1600 SIDEKEY_2P - 158 - LGE Internal Use Only Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 159: Bga Pin Map
8. BGA PIN MAP U101 PMB5712 (Transceiver) 8. BGA PIN MAP U101 PMB5712 (Transceiver) Not Used Used LGE Internal Use Only - 159 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 160 8. BGA PIN MAP U401 H9DA1GH25HAMMR-4EM U401 H9DA1GH25HAMMR-4EM NC Not Used LGE Internal Use Only - 160 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 161 8. BGA PIN MAP U402 XMM6260 (Digital Baseband Processor,3G) U402 XMM6260 (Digital Baseband Processor,3G) Not Used Used LGE Internal Use Only - 161 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 162 8. BGA PIN MAP U603 H9TKNNN8KDMPQR-NGM 8Gb LPDDR2 PoP U603 H9TKNNN8KDMPQR-NGM 8Gb LPDDR2 PoP Not Used LGE Internal Use Only - 162 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 163 8. BGA PIN MAP U501 OMAP4430 IC, Application Processor U501 OMAP4430 IC, Application Processor Not Used Not Used Not Used Used LGE Internal Use Only - 163 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 164 8. BGA PIN MAP U702 TWL6030B107CMR PMIC U702 TWL6030B107CMR PMIC Not Used LGE Internal Use Only - 164 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 165 U602 SKHynix 4G NAND Flash (H26M31003FPR) U602 SKHynix 4G NAND Flash (H26M31003FPR) Used Not Used Used Not Used LGE Internal Use Only - 165 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 166 8. BGA PIN MAP U803 (TWL6040 Audio codec) U803 (TWL6040 Audio codec) Not Used LGE Internal Use Only - 166 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 167 8. BGA PIN MAP IC701 MUIC TSU5611YZPR IC701 MUIC TSU5611YZPR Not Used Used LGE Internal Use Only - 167 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 168: Pcb Layout
- no Charging Function : Analog Switch - no CP UART port - no AP-CP UART port LG-P768_EAX64928101_1.0_MAIN_TOP-1 - 168 - LGE Internal Use Only Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 169 Function : OVP, Voltage Detector - no Charging Model name : TSU5611YZPR (IC701) Function : MUIC - no USB/UART LG-P768_EAX64928101_1.0_MAIN_TOP-2 - 169 - LGE Internal Use Only Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 170 Model name : LD6805K/18P (U1003) - no Proxi. Sensor - Function : LDO - no 8M Camera LG-P768_EAX64928101_1.0_MAIN_BOT-1 - 170 - LGE Internal Use Only Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 171 Model name : RF6590 (U104) - no 8M Camera - Function : Transceiver PMU - RF Sensitivity & TX Power LG-P768_EAX64928101_1.0_MAIN_BOT-2 - 171 - LGE Internal Use Only Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 178: Calibration
I/O Cable RF Cable_Main Power Supply_PIF Power Supply 5.3V Power Supply_Phone Power Supply 5.0V RF Test Equipment E5515C(8960) LGE Internal Use Only - 178 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 179 10. CALIBRATION P768 MS695 [Tachyon36]LGMS695_20120213_Calibration LGE Internal Use Only - 179 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 183 10. CALIBRATION P768 MS695 LGP768 LGP768 P768 MS695 P768 MS695 MS695 P768 MS695 P768 MS695 P768 MS695 LGP768 LGE Internal Use Only - 183 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 195 10. CALIBRATION LG-P768 MS695 LG-P768 MS695 MS695 LGP768 MS695 MS695 LGP768 MS695 LGP768 LGP768 MS695 LGP768 MS695 LGE Internal Use Only - 195 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 198: Hidden Menu
All Auto Test All Auto Test – Partial All Auto Test Result– Partial All Auto Test – Full LGE Internal Use Only - 198 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 199 12. FM Radio Test 13. LoopBack Test 14. LogService Auto All Test Result: -> Display Auto All Test result LGE Internal Use Only - 199 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 200 Phone contact with your fingers in the top of the sensor determine the sensor response - Far - Near Camera(Main) Test Camera Test 1 Main Camera Preview LGE Internal Use Only - 200 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 201 Display check Test : LCD Black & White test - Check the Black display - Check the White display LGE Internal Use Only - 201 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 202 : Check sound Check the sound Vibrator test A case-by-state vibration tests Touch window test Write with finger LGE Internal Use Only - 202 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 203 - Check the GLONASS scanning - Check the WIFI scanning - Check the BT scanning FM Radio Test Check the FM Radio LGE Internal Use Only - 203 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 204 EMI Test Font Test LCD Test RTC Test Sound Test Touch Test Touch LED Brightness Wifi Scan Test LGE Internal Use Only - 204 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 205 - Far 0 - Near 1023 Bluetooth Scan Test - Check the Bluetooth scan LGE Internal Use Only - 205 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 206 Compass Test - Check the compass EMI Test - Check the EMI (H-pattern) Font Test - Change native font LGE Internal Use Only - 206 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 207 Sound Test List Ring Test Effect Sound Message Tone Loop Back Test AudioPolicyManager Audio CAL Tool Call Loopback Test LGE Internal Use Only - 207 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 208 Touch Key Test Block Touch Test Touch Firmware Version Touch Window Touch LED On/Off test Wifi Scan test LGE Internal Use Only - 208 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 209 LCD Backlight Ringtone Vibrator Camera Audio Loopback -> test on the device is working (The ability to use plant) LGE Internal Use Only - 209 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 210 Format Internal SD card : Internal SD Card Data reset Factory Rest : Changing the Factory Version Info Classified Information representation LGE Internal Use Only - 210 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 211 - SMPL count - Wakelock Monitoring Setting - RIL Recovery - HIS Log Enable WLAN performance on SW LGE Internal Use Only - 211 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 212 11. HIDDEN MENU Contacts Test Aging Test Port Setting Select -> OK LGE Internal Use Only - 212 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 216 11. HIDDEN MENU SMS Test ->Automatic Memfull Test Call Test Streaming Test LGE Internal Use Only - 216 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 217 11. HIDDEN MENU MMS Test Change network mode Change connectivity mode LGE Internal Use Only - 217 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 218 11. HIDDEN MENU Set preferred networks For monkey cage test FM Radio test LGE Internal Use Only - 218 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 219 11. HIDDEN MENU SyncML test Connectivity test TouchArea Setting LGE Internal Use Only - 219 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 221 11. HIDDEN MENU APCP Sync Test Battery Test Widevine keybox Test LGE Internal Use Only - 221 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 222: Disassemble Guide
1. Disassemble Battery Cover , Rear 1. Remove Battery Cover Assy 2. Remove 10 SCREWs From Rear 3. Remove Rear Assy LGE Internal Use Only - 222 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 223 12. DISASSEMBLE GUIDE 2. Disassemble SPK Module Remove SPK Module from Rear LGE Internal Use Only - 223 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 224 3. Disassemble PCB 1. Remove FPCB CONNECTOR 6EA and COAXIAL CABLE CONNETOR from PCB. 2. Remove PCB From Frame. LGE Internal Use Only - 224 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 225 1. Remove 4 SCREWs From Frame. 2. Remove 3 Rubber From Frame. 3. Remove Lower FPCB From Frame. LGE Internal Use Only - 225 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 226 12. DISASSEMBLE GUIDE 5. Disassemble Frame-1 10Point Hook Loosen LGE Internal Use Only - 226 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 227 12. DISASSEMBLE GUIDE 5. Disassemble LCD-2 . Remove LCD From Frame LGE Internal Use Only - 227 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 228 12. DISASSEMBLE GUIDE 6. Disassemble Home Key Remove Home Key From Front Remove Touch Window From Front LGE Internal Use Only - 228 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 229 12. DISASSEMBLE GUIDE 7. Disassemble Frame Mold Remove Frame Mold from Frame MG LGE Internal Use Only - 229 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 231: Exploded View & Replacement Part List
13. EXPLODED VIEW & REPLACEMENT PART LIST This document is draft version, so the contents will be updated after registering the final one. LGE Internal Use Only - 231 - Copyright © 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes...

LG -P768 Service Manual

1 Introduction

2 Performance

3 CIC and Service Center

4 Trouble Shooting

5 Download

6 Block Diagram

7 Circuit Diagram

8 Bga Pin Map

9 Pcb Layout

10 Calibration

11 Hidden Menu

12 Disassemble Guide

13 Exploded View & Replacement Part List

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Troubleshooting

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Summary of Contents for LG LG-P768

Table of Contents