LG L705i Service Manual Download Page 11

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LGE Internal Use Only

Only for training and service purposes

3)Receiver - GSM Mode

2. PERFORMANCE

- 12 -

Item

Specification

Adjacent Channel Leakage Ratio(ACLR)

33dB@5MHz, ACP>-50dBm

43dB@10MHz, ACP>-50dBm

-36 dBm @f=9 ~ 150KHz, 1k BW

-36 dBm @f=150KHz ~ 30MHz, 10k

-36 dBm @f=30 ~ 1000MHz, 100k

Spurious Emissions

-30 dBm @f=1 ~ 12.75GHz, 1M

(*: additional requirement)

(*)-41 dBm @1893.5 ~ 1919.6MHz, 300k

(*)-67 dBm @925 ~ 935MHz, 100k

(*)-79 dBm @935 ~ 960MHz, 100k

(*)-71 dBm @1805 ~ 1880MHz, 100k

Transmit Intermodulation

-31 dBc @5MHz,Interferer -40dBc

-41 dBc @10MHz,Interferer -40dBc

Error Vector Magnitude (EVM)

17.5 % ( >-20dBm)

(@12.2k, 1DPCCH)

Transmit OFF Power

-15 dB@SF=4, 768kbps, multi-code

transmission

Item

GSM

DCS & PCS

Sensitivity (TCH/FS Class II)

-102dBm

Co-Channel Rejection

C/Ic= 7dB

Storage -30 ~ +85

(TCH/FS Class II, RBER, TU high/FH)

Adjacent Channel

200kHz

C/Ia1=-12dB

Rejection

400kHz

C/Ia2=-44dB

Wanted Signal:-98dBm

Wanted Signal :-96dBm

Intermodulation Rejection

1st interferer:-44dBm

2nd interferer:-45dBm

2nd interferer:-44dBm

Blocking Response

Wanted Signal:-101dBm

Wanted Signal :-101dBm

(TCH/FS Class II, RBER)

Unwanted: Depend on Frequency

Unwanted : Depend on Frequency

Z3X-BOX.COM

Summary of Contents for L705i

Page 1: ...Date October 2008 Issue 1 0 Service Manual Model L705i Service Manual L705i Internal Use Only Z 3 X B O X C O M ...

Page 2: ...eshooting 101 4 9 SIM Detect Troubleshooting 103 4 10 1 3 Mega Camera Troubleshooting 105 4 11 Keypad Backlight Troubleshooting 107 4 12 FOLDER Close Open Troubleshooting 108 4 13 Main LCD Troubleshooting 109 4 14 Receiver Path 110 4 15 Headset path 112 4 16 Speaker phone path 114 4 17 Main microphone 116 4 18 Headset microphone 118 4 19 Vibrator 120 5 DOWNLOAD 121 5 1 Introduction 121 5 2 Downloa...

Page 4: ...cted to it The manufacturer will not be responsible for any charges that resultfrom such unauthorized use B Incidence of Harm If a telephone company determines that the equipment provided to customer is faulty and possibly causing harm or interruption in service to the telephone network it should disconnect telephone service until repair can be done A telephone company may temporarily disconnect s...

Page 5: ... with sensitive laboratory equipment medical equipment etc Interference from unsuppressed engines or electric motors may cause problems H Electrostatic Sensitive Devices ATTENTION Boards which contain Electrostatic Sensitive Device ESD are indicated by the sign Following information is ESD handling Service personnel should ground themselves by using a wrist strap when exchange system boards When r...

Page 6: ... Call with 1000mAh Over 90 Min WCDMA Tx 10dBm Video Call Over 170 Min GSM Tx 29dBm Voice Standby Time Over 300 hrs DRX 2 56s with 1000mAh Over 300 hrs GSM Paging period 5 Antenna Internal Antenna LCD Main 2 4 QVGA 262K TFT Sub 1 3 262K TFT LCD Backlight White Camera 1 3 Mega pixel CMOS Vibrator Yes Coin cell type LED Indicator Yes 2 color LED MIC Yes SMD type Receiver Yes Speaker Receiver dual mod...

Page 7: ... Min Shut Down 3 28 V Operation Temp 20 60 C Storage Temp 20 70 C Humidity 85 Max Reference Spec Min Typ Max Unit TA Power Available power 100 220 240 Vac No Item GSM DCS PCS 100k 1GHz 39dBm 9k 1GHz 39dBm MS allocated 1G A MHz 33dBm Channel 1G 12 75GHz 33dBm A M B MHz 39dBm Conducted B M 12 75GHz 33dBm 1 Spurious 100k 880MHz 60dBm 100k 880MHz 60dBm Emission 880M 915MHz 62dBm 880M 915MHz 62dBm Idle...

Page 8: ...m B M 4GHz 47dBm B M 4GHz 47dBm 3 Frequency Error 0 1ppm 0 1ppm 4 Phase Error 5 RMS 5 RMS 20 PEAK 20 PEAK 3dB below reference sensitivity 3dB below reference sensitivity Frequency Error RA250 200Hz RA250 250Hz 5 Under Multipath and HT100 100Hz HT100 250Hz Interference Condition TU50 100Hz TU50 150Hz TU3 150Hz TU1 5 200Hz 0 100kHz 0 5dB 0 100kHz 0 5dB 200kHz 30dB 200kHz 30dB 250kHz 33dB 250kHz 33dB...

Page 9: ...be Less than 55dB below the level of Wanted signal Power control Power Tolerance Power control Power Tolerance Level dBm dB Level dBm dB 5 33 3 0 30 3 6 31 3 1 28 3 7 29 3 2 26 3 8 27 3 3 24 3 9 25 3 4 22 3 10 23 3 5 20 3 8 Transmitter Output Power 11 21 3 6 18 3 12 19 3 7 16 3 13 17 3 8 14 3 14 15 3 9 12 4 15 13 3 10 10 4 16 11 5 11 8 4 17 9 5 12 6 4 18 7 5 13 4 4 19 5 5 14 2 5 15 0 5 9 Burst tim...

Page 10: ...l command group 1 8 12 16 24 5 Minimum Output Power 50dBm 3 84MHz Qin Qout PCCH quality levels 6 Out of synchronization handling of output power Toff DPCCH Ior 22 28dB Ton DPCCH Ior 24 18dB 7 Transmit OFF Power 56dBm 3 84MHz 8 Transmit ON OFF Time Mask 25us PRACH CPCH uplinlk compressed mode 25us 9 Change of TFC Power varies according to the data rate DTX DPCH off minimize interference between UE ...

Page 11: ... 31 dBc 5MHz Interferer 40dBc 41 dBc 10MHz Interferer 40dBc 16 Error Vector Magnitude EVM 17 5 20dBm 12 2k 1DPDCH 1DPCCH 17 Transmit OFF Power 15 dB SF 4 768kbps multi code transmission No Item GSM DCS PCS 1 Sensitivity TCH FS Class II 102dBm 102dBm 2 Co Channel Rejection C Ic 7dB Storage 30 85 TCH FS Class II RBER TU high FH 3 Adjacent Channel 200kHz C Ia1 12dB C Ia1 12dB Rejection 400kHz C Ia2 4...

Page 12: ...output power Class3 44dBm 3 84MHz 15MHz UE 20dBm output power Class3 44 dBm 3 84MHz f 2050 2095 2185 2230 MHz band a UE 20dBm output power class3 30 dBm 3 84MHz f 2025 2050 5 Out band Blocking 2230 2255 MHz band a UE 20dBm output power class3 15 dBm 3 84MHz f 1 2025 2255 12500 MHz band a UE 20dBm output power class3 6 Spurious Response 44dBm CW UE 20dBm output power class3 46 dBm CW 10MHz 7 Interm...

Page 13: ...VT WCDMA 300hrs 300hrs 220hrs 200hrs 140 Min 90 Min only mode auto mode only mode auto mode Tx 10 dBm Tx 10 dBm DRX 2 56 DRX 2 56 Stand By Static Voice Call 300 hrs hrs 170 Min GSM only mode auto mode Tx Max Paging period 5 Antenna Bar WCDMA GSM BAR 3 RSCP 105 dBm RSSI 95dBm and Ec Io 12 dBm BAR 2 110 RSCP 105 dBm 100 RSSI 95 dBm or 14 Ec Io 12 dBm BAR 1 113 RSCP 110 dBm 105 RSSI 100 dBm or 17 Ec ...

Page 14: ... state During Call state BAR 3 2 3 78 0 05V 3 67 0 05V call maintenance over 40min BAR 2 1 3 67 0 05V 3 57 0 05V call maintenance over 10min BAR 1 0 3 3V 0 05V 3 28V 0 05V Icon Blinking Low battery message BAR 1 0 Low battery pop up BAR 2 1 display one time Power OFF during call 80s after Low battery message Power OFF at stand by 60s after Low battery message Z 3 X B O X C O M ...

Page 15: ...5 3 dB 3 Side Tone Masking Rating STMR Min 17 dB 4 Echo Loss EL Min 40 dB 5 Sending Distortion SD Refer to Table 30 3 6 Receiving Distortion RD Refer to Table 30 4 7 Idle Noise Sending INS Max 64 dBm0p 8 Idle Noise Receiving INR Nor Under 47 dBPA Max Under 36 dBPA 9 Sending Loudness Rating SLR 8 3 dB 10 Receiving Loudness Rating RLR Nor 1 3 dB Max 12 3 dB 11 Side Tone Masking Rating STMR Min 25 dB...

Page 16: ...and GSM transmitters use a baseband to IF upconversion followed by an offset phase locked loop that translates the GMSK modulated or 8 PSK modulated signal to RF A generic high level functional block diagram of L705i is shown in Figure 1 1 One antenna collects base station forward link signals and radiates handset reverse link signals The antenna connects with receive and transmit paths through a ...

Page 17: ...ts share the same interface to the MSM IC input ADC as the RTR6275 IC baseband outputs The GSM transmit path employs one stage of up conversion and in order to improve efficiency is divided into phase and amplitude components to produce an open loop Polar topology 1 The on chip quadrature up converter translates the GMSK modulated signal or 8 PSK modulated signal to a constant envelope phase signa...

Page 18: ...CS and PCS The antenna switch module allows multiple operating bands and modes to share the same antenna In L705i a common antenna connects to one of eight paths 1 UMTS 800 Rx Tx 2 UMTS 1900 Rx Tx 3 GSM 850 Rx 4 GSM 900 Rx 5 GSM 850 GSM 900 Tx Low Band Tx s share the same path 6 DCS 1800 Rx and 7 DCS 1800 PCS 1900 Tx High Band Tx s share the same path 8 PCS 1900 Rx UMTS operation requires simultan...

Page 19: ...nd matching networks that transform single ended 50 Ω sources to differential impedances optimized for gain and noise figure Similar to the RFR the RTR input uses a differential configuration to improve second order inter modulation and common mode rejection performance The RTR6275 input stages include MSM controlled gain adjustments that maximize receiver dynamic range The amplifier outputs drive...

Page 20: ...LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 3 TECHNICAL BRIEF 21 Fig 3 2 1 RTR6275 RX feature Z 3 X B O X C O M ...

Page 21: ...ass band symmetry about the band center frequency the suggested starting value is shown in Figure1 2 The RTR6275 IC is able to support GSM 850 1900 and GSM 1800 1900 mode transmitting This design guideline shows a quad band GSM application Both high band and low band outputs are followed by resistive pads to ensure that the load Presented to the outputs remains close to 50ohm The low band GSM Tx p...

Page 22: ...band UMTS path are separated from all other receive functions contained within the RFR6275 and RTR6275 reveiver ICs to improve mixer LO to RF isolation a critical parameter in the ZIF architecture Isolation is further improved using high reverse isolation circuits in the LNA designs The LNA gains are stepped via API control The IC operating mode and LNA bias currents are automatically adjusted via...

Page 23: ... and the differential I Q outputs are buffered to interface with the MSM IC Numerous secondary functions also are integrated on chip the Rx LO generation and distribution circuits and various interface control and status circuits An on chip UMTS VCO is phase locked to the external VC TCXO signal and processed by the LO generation and distribution circuits to create the UMTS Rx LO signals for the q...

Page 24: ... are filtered and applied to the PA Transmit power is delivered from the duplexer to the antenna through the switch module The transceiver LO synthesizer is contained within the RTR6275 IC with the exception of the off chip loop filter components and the VC TCXO This provides a simplified design for multimode applications The PLL circuits include a reference divider phase detector charge pump feed...

Page 25: ...Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 3 TECHNICAL BRIEF 26 WCDMA_2100_TX WCDMA_800_TX Figure 3 3 3 RTR6275 IC functional block diagram Z 3 X B O X C O M ...

Page 26: ...ces the Rx LO for one of the high band UMTS receive Paths Figure 3 4 2 3 PLL3 within the RFR6275 IC produces the Rx LO for the remaining UMTS receive paths 4 PLL4 within the RFR6275 IC produces the Rx LO for the GPS receive path Within the RFICs a buffered 19 2 MHz TCXO signal provides the synthesizer input REF the frequency reference to which the PLL is phase and frequency locked The reference is...

Page 27: ...UALCOMM internal Rx VCO 5 The listed settling times are for switching between channels at opposite ends of the active band and settling to within 250 Hz of the final frequency 6 Test and evaluation efforts were ongoing at the time of this document release Check future versions for design recommendations based on our test results 3 4 2 Transceiver PLL PLL1 The PLL1 within the RTR6275 IC creates the...

Page 28: ... and service purposes 3 5 Off chip RF Components 3 5 1 Antenna switch module FL100 DGM099M01 Switch Mode CTRL1 CTRL2 CTRL3 GSM850 EGSM TX 1 0 1 PCN PCS TX 0 1 1 WB850 0 1 1 WB1900 1 0 1 WB2100 0 0 1 GSM850 RX 0 0 0 EGSM RX 1 0 0 PCN RX 1 1 0 PCS RX 0 1 0 All Off 1 1 1 Table 3 5 1 FEM control table Z 3 X B O X C O M ...

Page 29: ...the PA and LNA Minimum duplexer Rx band isolation value is about 45 dB Tx band isolation the transmit channel power also leaks into the receiver In this case the leakage is outside the receiver passband but at a relatively high level It combines with Rx band jammers to create cross modulation products that fall in band to desensitize the receiver The required Tx band isolation depends on the PA ch...

Page 30: ...e of the art reliability and ruggedness Selectable bias modes that optimize efficiency for different output power levels and a shutdown mode with low leakage current increase handset talk and standby time The self contained 4mm 4mm 1 1mm surface mount package incorporates matching networks optimized for output power efficiency and linearity in a 50Ω system LGE Internal Use Only Copyright 2007 LG E...

Page 31: ...LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 3 TECHNICAL BRIEF 32 Table 3 5 2 AWT6277R Electrical specification Z 3 X B O X C O M ...

Page 32: ...ess The AWT6307R is part of ANADIGICS High Efficiency at Low Power HELP family of CDMA power amplifiers which deliver low quiescent currents and significantly greater efficiency without a costly external DAC or DC DC converter Through selectable bias modes the AWT6307R achieves optimal efficiency across different output power levels specifically at low and mid range power levels where the PA typic...

Page 33: ...LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 3 TECHNICAL BRIEF 34 Table 3 5 3 AWT6370R Electrical specification Z 3 X B O X C O M ...

Page 34: ...nd the other supports the DCS1800 and PCS1900 bands Both PA blocks share common power supply pins to distribute current The GaAs die the Silicon Si die and the passive components are mounted on a multi layer laminate substrate The assembly is encapsulated with plastic overmold RF input and output ports of the SKY77318 are internally matched to a 50 ßŸ load to reduce the number of external componen...

Page 35: ...LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Figure 3 5 5 SKY77318 functional block diagram Table 3 5 4 SKY77318 Electrical specification Z 3 X B O X C O M ...

Page 36: ...ngle ended outputs from the ICs and provide differential outputs having nominal 180 phase separation Phase and or amplitude imbalance causes degraded common mode rejection and second order nonlinearity so their requirements are specified jointly 9 degrees and 1 dB 1 5 degrees and 0 1 dB Of course passband ripple and return loss are still important in all cases for the same reasons explained in the...

Page 37: ...for faster Java based games and other applets QDSP4000 high performance DSP cores Integrated gpsOne position location technology functionality Integrated Bluetooth 1 2 baseband processor for wireless connectivity to peripherals Qcamera with 15 fps QVGA viewfinder resolution and support for 4 MP camera sensors Direct interface to digital camera module with video front end VFE image processing True ...

Page 38: ...LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 3 TECHNICAL BRIEF 39 Figure Simplified Block Diagram Z 3 X B O X C O M ...

Page 39: ...TY CAMERA PROCESSING Default 8bit Interface GRAPHICS VIDEO AUDIO DUAL MEMORY BUS Modem QDSP 4000 PLL QDSP 4000 ARM 926ejs With Jazelle UMTS WCDMA HSDPA processor Rx ADC Tx DAC AAC EVRC QCELP AMR CMX EBI 1 EBI 2 Open GL ES 3D 2D MPEG 4 Keypad I F USB UART1 UART2 RUIM1 PMIC SSBI KEY PAD I O Conn USB NAND Flash 2G SDRAM 1G LCD Main 2 4î S ub 1 3î PM6650 GSM GPRS processor JTAG RF SSBI GPIO USIM Camer...

Page 40: ...FDD standard including the following features All modes and data rates for W CDMA frequency division duplex FDD with the following restrictions The downlink supports the following specifications Up to four physical channels including the broadcast channel BCH if present Up to three dedicated physical channels DPCHs Spreading factor SF range support from 4 to 256 The following transmit diversity mo...

Page 41: ...d fax No sub rates are supported 3 8 4 GPRS features Packet switched data GPRS DTM Simple Class A operation Multi slot class 12 data services CS schemes CS1 CS2 CS3 and CS4 GEA1 GEA2 and GEA3 ciphering Maximum of four Rx timeslots per frame 3 8 5 MSM6280 device audio processing features Integrated wideband stereo CODEC 16 bit DAC with typical 88 dB dynamic range Supports sampling rates up to 48 kH...

Page 42: ...clock for SDRAM 32 bit SDRAM Dual memory buses separating the high speed memory subsystem EBI1 from low speed peripherals EBI2 such as LCD panels 1 8 V or 2 6 V memory interface support excluding EBI1 NAND FLASH memory interface 8 16 bit data I O width NAND flash support 1 or 4 bit ECC 512 byte 2KB page size support 2 chip selects supported for NAND Flash Boot from NAND Low power SDRAM LP SDRAM in...

Page 43: ...essing supporting CCD or CMOS image sensors up to 4 megapixel with 15 fps capture rate 15 fps QVGA viewfinder Qtv Audio and video decoder that supports VOD MOD and Broadcast multimedia services Audio Codecs supported AMR NB AAC AAC Plus Enhanced AAC Plus Windows Audio v9 RealAudio v8 Integrated stereo wideband Codec for music digital clips CMX Video Codecs supported MPEG 4 H 263 H 264 Windows Medi...

Page 44: ...neous polyphonic tones 44 kHz sampling rate 512 kB wave table Support of universal file formats Standard MIDI Format SMF SP MIDI SMAF Audio playback MA 2 MA 3 MA 5 XMF OLS MFil requires Docomo license PNG decoder Pitch bend range support LED vibrate support Scalable Vector Graphics SVG Tiny 1 1 SVG Tiny 1 2 MLZ decoder Integrated PNG SAF A T Table 1 1 Summary of MSM6280 device features Z 3 X B O X...

Page 45: ... a two stage amplifier with the gain of the second stage set interally The Rx Tx paths are designed to meet the ITU G 712 requirements for digital transmission systems 3 8 11 Vocoder Subsystem The MSM6280 device s QDSP4000 supports AMR FR EFR and HR In addition the QDSP4000 has modules to support the following audio functions DTMF tone generation DTMF tone detection Tx Rx volume controls Tx Rx aut...

Page 46: ...manufacture 3 8 14 General Purpose Input Output Interface The MSM6280 device has general purpose bidirectional input output pins Some of the GPIO pins have alternate functions supported on them The alternate functions include USB interface additional RAM ROM general purpose chip selects parallel LCD interface and a UART interface The function of these pins is documented in the various software rel...

Page 47: ...wer the appropriate handset electronics It monitors and controls the power sources detecting which sources are applied verifying that they are within acceptable operational limits and coordinates battery and coin cell recharging while maintaining the handset electronics supply voltages Eight programmable output voltages are generated using low dropout voltage regulators all derived from a common t...

Page 48: ...LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 3 TECHNICAL BRIEF 49 Figure PM6650 Functional Block Diagram Z 3 X B O X C O M ...

Page 49: ...nal supply is applied or not For additional accuracy or to capture variations over time this voltage is routed internally to the housekeeping ADC via the analog multiplexer PM6650 circuits monitor voltages at VCHARGER and ICHARGE pins to determine which supply should be used and when to switch between the two supplies These pins are connected to the Source or emitter and Drain or collector contact...

Page 50: ...d through SBI control and powered from VDD is provided by the PM6650 IC The trickle charger is on chip programmable current source that supplies current from VDD to pin VBAT Trickle charging can be used for lithium ion and nickelbased batteries with its performance specified below 3 2V The charging current is set to 80mA Parameter Min Typ Max Unit Trickle Current 60 80 100 mA Z 3 X B O X C O M ...

Page 51: ...t voltage charging begins when the battery voltage reaches a target voltage 4 2V The end of constant voltage charging is commonly detected 10 of the full charging current 140mA Charging Method CC CV Constant Current Constant Voltage Maximum Charging Voltage 4 2V Maximum Charging Current 600mA Nominal Battery Capacity 860 mAh Charger Voltage 5 4V Charging time Max 180min Except time trickle chargin...

Page 52: ...n each chip select Synchronous burst memories supported burst NOR burst PSRAM Synchronous DRAM memories supported Byte addressable memory supporting 8 bit 16 bit and 32 bit accesses Pseudo SRAM PSRAM memory support EBI2 Features Support for asynchronous FLASH and SRAM 16bit 8bit Interface support for byte addressable 16bit devices UB_N LB_N signals 2Mbytes of memory per chip select Support for 8 b...

Page 53: ...ower amplifier 3 TECHNICAL BRIEF 54 Figure Schematic of RF Interface of MSM6280 Near to MSM WCMDA 2100PAM Enable TX_AGC_ADJ H13 SYNTH0_GP_PDM0_GPIO92 F19 TCXO_EN_GPIO94 L13 TRK_LO_ADJ V23 Q_IP_CH1 Q_OUT B12 Q_OUT_N A12 H18 SBST1_GPIO93 F17 PA_ON0 Q_IM_CH0 AA25 W23 Q_IM_CH1 Q_IP_CH0 Y25 I_IP_CH1 W25 B13 I_OUT A13 I_OUT_N I_IM_CH0 AB25 I_IM_CH1 V25 I_IP_CH0 AC25 GP_PDM1_PA_RAN_GE0 H17 GP_PDM2_PA_RAN...

Page 54: ...for control Sub chipset RX_I Q_M P I Q for Rx of RF C the others TRK_LO_ADJ TCXO 19 2M Control PA_ON1 WCDMA 800 WCDMA 2100 TX Power Amp Enable ANT_SEL 0 3 Ant Switch Module Mode Selection WCDMA GSM Tx Rx DCS PCS Tx Rx GSM_PA_BAND GSM DCS PCS Band Selection of Power Amp GSM_PA_RAMP Power Amp Gain Control of APC_IC GSM_PA_EN Power Amp Gain Control Enable of APC_IC Z 3 X B O X C O M ...

Page 55: ...lowed USIM_CLK USIM Clock USIM_Reset USIM Reset USIM_Data USIM Data T Rx 3 11 2 2 UART Interface UART signals are connected to MSM GPIO through IO connector with 115200 bps speed 3 TECHNICAL BRIEF 56 GPIO_Map Name Note GPIO_96 UART_RXM Data_Rx GPIO_95 UART_TXM Data_Tx MSM6280 PM6650 USIM MSM_USIM CLK MSM_USIM Reset MSM_USIM Data USIM Data USIM Reset USIM CLK VREG_UIM 2 85V Figure SIM Interface Tab...

Page 56: ...e is also compliant as a peripheral with the USB Specification Revision 2 0 The USB Specification Revision 1 1 defines two speeds of operation namely low speed 1 5 Mbps and full speed 12 Mbps both of which are supported by the MSM6280 Name Note USB_DAT Data to from MSM USB_SE0 Data to from MSM USB_OE_N Out Put Enable of Transceiver USB_VBUS USB_Power From Host PC USB_D USB Data to Host USB_D USB D...

Page 57: ... non booting from USB When the phone is booted from USB_VBUS without Battery booting current might be insufficient Sometimes this scheme can break the USB port on a computer So L705i does not support booting from USB 3 TECHNICAL BRIEF 58 Figure Schematic of USB protective circuit 2 4 5 3 1 KRX102E Q402 USB_VBUS_IN PS_HOLD USB_VBUS Z 3 X B O X C O M ...

Page 58: ... signals corresponding to analog parameters such as battery voltage temperature and RF power levels The MSM6280 device has six analog input pins which are multiplexed to the input of the internal HKADC Figure MSM6280HKADC Block diagram Table HKADC channel table Channel Signal Note HKADC0 PM_ADC PMIC ADC Input HKADC1 VBATT_SENSE Battery voltage level detect HKADC2 HKADC3 HKADC4 PCB_Rev_ADC PCB Vers...

Page 59: ...1 1 2 3 RIGHT MULTI DOWN SIDE KEY ROW 2 4 5 6 UP UP SIDE KEY ROW 3 7 8 9 DOWN 1 SUB KEY 2 SUB KEY ROW 4 0 OK 3 SUB KEY MODE SUB KEY KB102 KB103 KB101 KEY_COL 4 KEY_ROW 3 KEY_COL 5 KEY_ROW 4 KB100 KB102 KEY_ROW 0 KEY_ROW 1 SIDE KEY KEY_ROW 2 KEY_COL 5 KB101 KB100 CN1 1 2 3 4 5 7 D N 9 HOT3 HOT4 5 RIGHT 8 CLR 6 2 LEFT KEY MULTI SND 4 OK 3 1 UP 0 HOT600 600 605 10K R600 2 4 6 8 1 3 5 7 RA600 10K LEFT...

Page 60: ...LC18S02015 VA507 C521 0 1u C520 0 1u VA508 EVLC18S02003 PRSB6 8C D508 C518 0 1u D507 RB521S 30 G2 10 INOUT_A1 1 2 INOUT_A2 INOUT_A3 3 4 INOUT_A4 9 INOUT_B1 INOUT_B2 8 7 INOUT_B3 INOUT_B4 6 FL507 ICVE10184E070R100FR G1 5 FL501 ICVE10184E070R100FR 1 9 R509 51K VA511 EVLC18S02015 EVLC18S02015 VA510 D510 PRSB6 8C G1 5 G2 10 INOUT_A1 1 2 INOUT_A2 INOUT_A3 3 4 INOUT_A4 9 INOUT_B1 INOUT_B2 8 7 INOUT_B3 I...

Page 61: ...24 5MHz master clock to camera module and receive 49 1MHz pixel clock 15fps vertical sync signal horizontal sync signal reset signal and 8bits data from camera module The camera module is controlled by I2C port from MSM6280 LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Table1 Interface between 1 3 Mega Camera Module Z 3 X B O X C ...

Page 62: ... Otherwise 2 7V This FOLDER_DETECT_N signal is delivered to MSM6280 GPIO92 LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Figure Schematic of FOLDER ON OFF detection circuit Hall Sensor NA C508 R504 62 0 1u C505 GND1 2 5 GND2 IO_VDD 6 NC 3 4 OUT VDD 1 EUSY0268101 TK60012BM5 U500 FOLDER_DETECT_N VREG_MSMP_2 7V Z 3 X B O X C O M ...

Page 63: ...riven by KYBD_BACKLIGHT line from PM6650 LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes KEY_BACK_LIGHT CL 435F WQ SD TS LD601 R602 47 LD600 CL 435F WQ SD TS 47 R603 0 R601 ICVS0514X350FR VA600 KYBD_BACKLIGHT VPWR Z 3 X B O X C O M ...

Page 64: ...d Green and Blue sub pixels and dots which are arranged in vertical stripes Features Display mode Main LCD Normally Black Transmissive LCD Display mode Sub LCD Normally White Transmissive LCD LCD Driver IC uPD161702 Main LGDP4512 Sub Driving Method A Si TFT Active Matrix 18 bit 16 bit CPU interface Parallel LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for trainin...

Page 65: ...0 31 32 33 34 35 36 37 38 39 4 40 41 42 43 15 16 17 18 19 2 20 21 22 23 24 25 26 27 28 29 CN104 1 10 11 12 13 14 SPK_RCV SPK_RCV LCD_CS_SUB_N MOTOR_PWR VPWR V_BACK_UP MLED_CATHOD1 EBI2_DATA 0 EBI2_DATA 1 EBI2_DATA 2 EBI2_DATA 3 EBI2_DATA 4 LCD_MAKER_ID EBI2_DATA 5 EBI2_DATA 6 EBI2_DATA 7 LCD_ADS LCD_CS_MAIN_N LCD_IF_MODE0 LCD_IF_MODE1 EBI2_DATA 15 EBI2_DATA 14 EBI2_DATA 13 EBI2_DATA 12 VREG_LCD_2 ...

Page 66: ...ceiver or speaker The receive path can be directed to either one of two earphone amplifiers or the auxiliary output The outputs earphone1 EAR1OP EAR1ON and auxiliary out AUXOP AUXON are differential outputs Earphone2 EAR2 EAR3 is a single ended output stage designed to drive a headset speaker The microphone interface consists of two differential microphone inputs one differential auxiliary input a...

Page 67: ...HPH_L AA17 HPH_VREF AA19 AE18 EAR1ON AF18 EAR1OP AA20 CCOMP AUXIN AF19 AUXIP AE19 AA18 AUXOUT 22n C237 C238 0 1u RCV MICBIAS MIC2P MIC1N HPH_R HPH_L RCV MIC1P Ear jack C501 0 1u D506 PRSB6 8C C510 33p 3 4 5 6 7 8 9 CN500 HSEJ 10S 05 1 10 11 12 13 14 2 D501 PRSB6 8C PRSB6 8C D500 2 2K R503 PRSB6 8C D503 C511 10p 33u C504 100K R502 51 R506 D504 PRSB6 8C PRSB6 8C D502 C509 10p C503 33u 100K R501 R500...

Page 68: ...DD1 B4 VDD2 C4 D4 VO A4 VO _SD A1 10u U300 TPA2005D1ZQYR C320 22n C315 51K R305 22n C319 HPH_L SPK_AMP_EN VPWR SPK_RCV SPK_RCV RCV_EN 0 NC 1 NO SELECT_SPK RCV 3 COM1 9 COM2 6 GND IN1 4 IN2 8 5 NC1 NC2 7 NO1 2 NO2 10 VCC 1 U301 NLAS5223BMNR2G 10 R309 10 R308 C314 0 1u TP310 RCV_EN VPWR RCV RCV SPK_RCV SPK_RCV MIC 0 1u C301 0 R300 C305 1u 10u C303 NA C302 0 1u C300 G1 2 3 G2 5 G3 1 OUT PWR 4 SUMY001...

Page 69: ...er Phone Loud Mode Headset Voice Call Headset Speaker Phone Loud Mode Speaker phone Receiver Voice Call Description Receiver Mode Voice Call Device MODE Table Audio Mode Table Audio main component list 1 1W Class D Mono Audio AMP TPA2005D1Z U300 Audio AMP 2 8 ohm Speaker EMS1810TCD1P Receiver 5 42 dB microphone SP0204LE5 PB4 MIC300 MIC 6 Ear jack HSEJ 10S 05 CN500 Ear jack 4 Small package Dual SPD...

Page 70: ...ures 1 1 L705i Main features Folder Type WCDMA 800 2100 GSM Tri Class10 Color LCD Main 2 4 QVGA 262K TFT Sub 1 3 65K TFT 18 10 Speaker Receiver dual mode Stereo Headset Speaker phone in GSM and WCDMA 64 Polyphonic MIDI Sound 3gp AAC decoder and play MPEG4 encoder decoder and play save JPEG en decoder Supports IrDA USB 860 mAh Li Ion Z 3 X B O X C O M ...

Page 71: ...ht 2007 LG Electronics Inc All right reserved Only for training and service purposes 2 L705i Main Component 3 TECHNICAL BRIEF 72 Logic RF LCD Connector Ear jack Logic Power SIM Mic Main board Bottom Main board TOP Z 3 X B O X C O M ...

Page 72: ...ice purposes 3 TECHNICAL BRIEF 73 RF TP1 TP2 TP3 TP4 TP5 TP6 TP7 TP8 TP9 TP10 Reference Description Reference Description TP1 RTR6275 TP6 W800 Duplexer TP2 RFR6275 TP7 SPDT TP3 W2100 Duplexer TP8 ANT Switch TP4 W2100 PAM TP9 Front End Module TP5 W800 PAM TP10 GSM PAM Main board Bottom Z 3 X B O X C O M ...

Page 73: ...3 CON5 CON4 TP7 TP1 TP2 TP3 TP4 CN2 TP6 TP8 MIC1 TP5 Reference Description Reference Description TP1 Memory TP8 PM6650 TP2 MSM6280 TP9 Battery Connector TP3 Crystal 19 2M TP10 SIM Connector TP4 Audio AMP TP11 I O Connector TP5 Crystal 48M TP12 Ear jack Connector TP6 IrDA TP13 LCD Connector TP7 SELECTION SWITCH SPK or RCV MIC1 MIC Main Bottom Z 3 X B O X C O M ...

Page 74: ...B TOP LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Reference Description Reference Description LD1 LD2 LED TP1 Hall Sensor LD1 LD2 TP1 Main TOP Z 3 X B O X C O M ...

Page 75: ...N1 TP1 TP2 CN2 CN4 CN1 TP1 TP1 Sub Key TP1 Sub Key Camera Module TP1 Camera Sub Key Connector CN4 LCD Module Connector CN1 Camera Connector CN3 Backup Battery TP3 LCD Connector CN2 Speaker TP2 Main Connector CN1 FPCB Vibrator TP1 LCD Module Description Reference Description Reference LCD Module FPCB Bottom Camera Module Sub Key PCB Z 3 X B O X C O M ...

Page 76: ... 77 4 TROUBLE SHOOTING 4 1 RF Component 4 TROUBLE SHOOTING LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Z 3 X B O X C O M ...

Page 77: ...010LH 19 2M 75A VCTCXO 19 2MHz Common SW100 KMS 507 Test Connector Calibration etc U100 UMH9NTN SPDT Switch RF Switch FL100 D2024 FEM Band selection FL103 SAYZY1G95EA0B00 W2100 Duplexer Tx Rx U104 A WT6277R W2100 PAM Tx FL104 SAFEB1 G95KA0F00 W2100 Tx SAW Tx FL101 SAFEB2 G14FA0F00 W2100 Rx SAW Rx U106 A WT6307R W800 PAM Tx FL106 EFSD836MF2S2 W800 Duplexer Tx Rx U102 SKY77318 GSM PAM Tx FL102 EFCH8...

Page 78: ...0 TCXO is used in UMTS TX part GSM part and BB part TP2 TRK_LO_ADJ TP1 VREG_TCXO_2 85V TP3 RTR6275_TCXO TP4 TCXO_PM TCXO Chip 0603 Blocking Cap place to RF Chip 1000p C171 2 GND OUT 3 VCC 4 VCONT 1 19 2MHz X100 TG 5010LH_19_2M_75A EXSK0007802 100 R127 1000 pF C177 C172 0 01u 1000p C170 C168 1000p C176 0 1u RFR6275_TCXO VREG_TCXO_2 85V TRK_LO_ADJ TCXO_PM RTR6275_TCXO TP4 TP2 TP1 TP3 Z 3 X B O X C O...

Page 79: ...LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING 80 Check C400 ofPM IC U 400 Check C273 of M SM U201 Z 3 X B O X C O M ...

Page 80: ...ning and service purposes 4 TROUBLE SHOOTING 81 4 3 Checking Ant SW Module Block TP1 VREG_RF_SMPS TP2 ANT_SEL0 TP3 ANT_SEL1 TP4 ANT_SEL2 C123 33p R113 1K R111 1K R112 1K 33p C122 33p C121 ANT_SEL0 ANT_SEL1 ANT_SEL2 0603 0603 33p C120 C119 0 1u VREG_RF_SMPS TP1 TP2 TP3 TP4 Z 3 X B O X C O M ...

Page 81: ... 1 WB850 0 1 1 WB1900 1 0 1 WB2100 0 0 1 GSM850 RX 0 0 0 EGSM RX 1 0 0 PCN RX 1 1 0 PCS RX 0 1 0 All Off 1 1 1 min typ max Power supply voltage VDC 2 5 2 75 3 2 V VDC Control voltage high VDC 1 4 V Ctrl 1 Ctrl 2 Ctrl 3 Control voltage low VDC 0 4 V Ctrl 1 Ctrl 2 Ctrl 3 Power supply current max IDC 13 50 µA Control current max IDC 2 µA Switching Speed T 3 µS Check Soldering of ANT_SEL 0 1 2 High Le...

Page 82: ...ng TX POWER of UMTS2100MHz TP3 FEM ANT OUT TP1 W2100 Tx PAM OUT TP4 W2100 Tx PAM IN TP2 W2100 DUPLEXER ANT OUT IN 1 OUT U103 CP0402A1950DNTR SCDY0003403 C163 68p 1 2p C169 G2 5 G3 3 IN 1 4 OUT FL104 SAFEB1G95KA0F00 SFSY0028101 G1 2 L505 2 2nH 5 6nH L113 L112 NA C135 68p WCDMA_2100 ANT G1 G2 RF ENWY0003301 KMS 507 SW100 56nH L103 C103 56p TP1 TP3 TP4 TP2 Z 3 X B O X C O M ...

Page 83: ...ilter FL10 4 And so lderi ng of L505 Check thecoupler U103 andsol deri ng Of L505 Check the Duplexer FL10 3 and so lderi ng of C68 Check the FEM FL100 and so lderi ng C103 84 4 TROUBLE SHOOTING LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Z 3 X B O X C O M ...

Page 84: ...LE SHOOTING Measured value and spectrum of TP2 Measured value and spectrum of TP3 LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Z 3 X B O X C O M ...

Page 85: ...rved Only for training and service purposes TP1 W800 Tx PAM OUT TP2 W800 Tx DUPLEXER ANT OUT TP4 W800 Tx PAM IN GND2 6 RFIN 3 7 RFOUT VBATT 4 5 VCC 1 VEN 2 VMODE AWT6307R U106 BGND 9 GND1 8 1 5nH L504 68p C133 WCDMA_800 2 G1 3 G2 5 G3 1 IN 4 O1 SFSY0030301 EFCH836MTDB1 FL105 12p C184 L129 18nH 68p C183 TP1 TP2 TP4 Z 3 X B O X C O M ...

Page 86: ...343 L2 1 Run aFTM prog ra m set R F mode to 2100 se t upl i nk freq To 9750 C l ickTx On And WCDMA set P A Range R0 and R1 on Set TX A CC to 330 Run aFTM prog ra m set R F mode to 800 set uplink f req To 83 7 Click Tx O n And WCDMA set P A Range R0 and R1 on Set TX A CC to 330 Check a co upler U557 anda sold ering of C2005 C1646 Check a dupl exer FL18 a nd a sold ering of L15 C14 19 Check a FEM FL...

Page 87: ...l Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING 88 Measured value and spectrum of TP2 Measured value and spectrum of TP3 Z 3 X B O X C O M ...

Page 88: ...PWR 4 2V LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes TP1 UMTS PWR DETECTION TP2 PA_ON1 TP2 PA_ON0 TP3 VPWR TP3 VPWR 100ohm R133 100ohm R132 4 50OHM COUP 3 2 IN 1 OUT 75 R131 PWR_DET 2 Q100 KRX102E EQBA0000602 1000p C165 VREG_TCXO_2 85V PA_ON0 0603 0 1u C178 PA_ON1 C164 4 7u 120p C167 0 01u C166 VPWR 68p C187 10u C186 VPWR TP1 TP...

Page 89: ...P4 W800 Rx LNA OUT TP2 W2100 Rx DUPLEXER ANT IN TP1 MOBILE SW IN ANT G1 G2 RF ENWY0003301 KMS 507 SW100 C102 56p L502 2 7nH FL106 EFSD836MF2S2 6 ANT 2 GND1 4 GND2 GND3 5 7 GND4 8 GND5 9 GND6 RX 3 1 TX G1 2 G2 5 IN 1 O1 3 O2 4 FL107 EFCH881MTDAA SFSY0030101 C195 82p C134 68p C136 39p C135 68p 68p C133 WCDMA_800 WCDMA_2100 C173 10p C604 5 6p W2100_RX 6 8nH C153 G1 2 G2 5 IN 1 O1 3 O2 4 FL101 SAFEB2G...

Page 90: ...rvice purposes NO NO NO NO NO YES YES YES YES YES Set the Phone Rx is ON Check Vbias Vbias Over 2V Check bids block soldering Check ANT Check the FEM FL100 Check Duplexer FL103 FL106 Check RTR6275 RER6275 FL101 FL107 Check TP1 Signal exist Check TP2 TP2 Signal exist Check TP3 TP3 Signal exist Check TP4 TP4 Signal exist Rx is OK Check other Parts Z 3 X B O X C O M ...

Page 91: ...M Rx Tx PAM block PCS Rx DCS Rx 0603 0603 56p C150 NA C132 15nH L114 C131 NA 10 R116 8p C138 3 9nH L115 68p C152 GND7 14 GND8 16 GND9 P_GND 21 RSVD_GND 19 20 VAPC DCS_PCS_OUT 15 11 EGSM_OUT 68p C137 68p C151 GSM_PA_RAMP EGSM RX DCS RX PCS RX 4 7nH L105 NA L106 L102 NA C124 0 5p L101 NA R607 NA NA L110 4 7nH L108 L100 18nH L107 4 7nH 4 7nH L111 L104 18nH GSM Rx block GSM Tx block Z 3 X B O X C O M ...

Page 92: ...0 4V DCS PCS Mode 1 25V VBS 3 0V TP4 VPWR PAM Supply Voltage Vcc higher than 3 0V TP3 TP3 GSM GSM _PA_BAND PA_BAND TP1 TP1 GSM GSM _PA_RAM P PA_RAM P TP2 TP2 GSM GSM _PA_EN PA_EN TP4 TP4 VP VPW R 0603 0603 0603 0603 0603 0603 C141 0 01u 10 R116 R123 100 0 01u C142 10u C139 68p C152 8 GND3 9 GND4 GND5 10 12 GND6 GND7 13 14 GND8 16 GND9 P_GND 21 RSVD_GND 19 20 VAPC VBATT 17 VCC1A 2 VCC1B 6 U102 SKY7...

Page 93: ...ht reserved Only for training and service purposes 4 5 2 Checking RF Rx Block 4 TROUBLE SHOOTING 94 EGSM RX DCS RX PCS RX 4 7nH L105 NA L106 L102 NA C124 0 5p L101 NA R607 NA NA L110 4 7nH L108 L100 18nH L107 4 7nH 4 7nH L111 L104 18nH TP1 TP2 TP3 Z 3 X B O X C O M ...

Page 94: ..._2 7V C423 VREG_MSMA_2 6V C420 VREG_TCXO_2 85V C400 power up and system reset assert to MSM Phone booting and PS_HOLD D400 assert to PMIC Start Battery voltage higher than 3 3V VA601 high to low when key press VREG_MSMC_1 375V VREG_MSME_1 8V VREG_MSMP_2 7V VREG_TCXO_2 85V VREG_MSMA_2 6V power up Is clock ok R408 19 2M X400 32 768Khz Change the Main board Change or charging the Battery Check the Ke...

Page 95: ...Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING 96 D400 VREG_MSMC VREG_MSME VREG_MSMA VREG_MSMP X400 32 768Khz R408 19 2MHz VREG_TCXO Main board Bottom R1125 19 2MHz X2 32 768Khz Z 3 X B O X C O M ...

Page 96: ...D USIM_P_RST_N SLEEP_CLK SSBDT_PM VREG_MSMP_2 7V JTAG_PS_HOLD TCXO_PM V_BACK_UP LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING 97 2016 0603 2016 4 7u C429 C434 1000 pF C430 4 7u C433 1000p L402 4 7uH 42 35 VREG_MSME 36 VSW_MSME 37 RUIM_CLK MPP10 38 VREG_MMC 39 RUIM_M_RST MPP5 40 VDD_RUIM 41 VREG_RUIM 28 VDD_PA 29...

Page 97: ... TA and battery to the phone Control the charging current by PM6650 IC Charging current flows into the battery Check Point Troubleshooting Procedure Connection of TA Check the charger connector Charging current path Check the charging current Path Battery Check the battery 4 TROUBLE SHOOTING 98 4 2 4 25V TA 5 4V Main Battery Pass Tr ON 4 2 4 25V Battery FET ON Charging Current Flow Z 3 X B O X C O...

Page 98: ...rvice purposes 4 TROUBLE SHOOTING 99 Figure Charging part schematic R415 Q401 Q400 0603 1 4 EQBP0009901 3 1 2 5 6 QST4 Q400 R414 0 R415 0 1 smd_2125h_65_r ERHZ0003901 S4 S5 D G S1 S2 S3 FDJ129P Q401 EQFP0005101 ICHARGEOUT CHG_CNT_N 5V_PWR VBATT BATT_FET_N VPWR ICHARGE Q400 Q401 R415 Z 3 X B O X C O M ...

Page 99: ...ice purposes 4 TROUBLE SHOOTING 100 Troubleshooting Flow Start Check the pin and battery Connect terminals of I O connector Connection OK Change I O connector Is the TA voltage 5 4V Change TA Is it charging properly After turning on Q400 Q401 END Change the board NO Yes NO Yes NO Yes Z 3 X B O X C O M ...

Page 100: ...3V USB_VP and USB_VN is triggered USB work LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Start Q402 PIN4 is 5V USB_D is 3 3V Change the Main board Check Q402 Check U400 NO YES YES NO Cable is inserted YES Insert cable NO Power is on YES Go to power on trouble shooting NO Z 3 X B O X C O M ...

Page 101: ... 2007 LG Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING 102 Q402 U401 2 4 5 3 1 KRX102E Q402 USB_VBUS_IN PS_HOLD USB_VBUS 1 2 3 4 5 6 U401 PLR0504F USB_D USB_D Q402 U401 Z 3 X B O X C O M ...

Page 102: ...103 4 9 SIM Detect Troubleshooting USIM Initial sequence of L705i is USIM_CLK USIM_RST USIM_DATA triggered VREG_USIM_2 85V go to 2 85V USIM IF work Start Work well VREG_USIM_2 85V is 2 85V USIM_P_CLK is run Change the Main board End Check J300 Yes No YES NO Re insert the SIM card Change SIM card Work well End Yes No Z 3 X B O X C O M ...

Page 103: ...REG_UIM_2 85 USIM_P_CLK USIM_P_DATA USIM_P_RST_N Ground R313 4 7K EVLC18S02015 VA302 0 L300 VA301 EVLC18S02015 1 C1 2 C2 C3 3 4 C5 C6 5 C7 6 GND1 7 8 GND2 GND3 9 10 GND4 J300 SEVY0003801 EVLC18S02015 VA303 VA300 EVLC18S02015 C322 0 1u USIM_P_CLK USIM_P_RST_N VREG_USIM_2 85V USIM_P_DATA USIM_P_CLK VREG_USIM_2 85V SIM 1 8T Z 3 X B O X C O M ...

Page 104: ...1 3 Mega Camera control signals are generated by MSM6280 Start CAM_PWR_EN is 2 7V R422 VREG_CAM_1 8V is 1 5V C442 VREG_CAM_2 8V is 2 8V C441 Yes NO END Camera is OK Check the camera connector and reconnect the camera Change the Main board Camera is OK Check the CAM_MCLK Change the camera Yes Yes NO NO NO END Yes Change the Main board Change the Main board Z 3 X B O X C O M ...

Page 105: ...aining and service purposes 4 TROUBLE SHOOTING 106 C441 C442 R422 CAM_LDO 1u C441 1u C439 100K R422 C442 1u 0 1u C440 BGND 11 BYP 4 EN1 2 EN2 3 6 GND 5 NC1 NC2 7 8 NC3 1 VIN VOUT1 10 9 VOUT2 U404 ISL9011IRJBZ T CAM_PWR_EN VPWR VREG_CAM_2 8V VREG_CAM_1 5V R422 C441 C442 Z 3 X B O X C O M ...

Page 106: ...d LED Light is on as below Key pressing SUB_LED_DRV_N is Low KEYPAD LED Lighting on Start Change the Main board Check battery NO Yes Yes Key press Change the Main board Yes NO KYBD_BACKLIGHT is Low KEYPAD LED Lighting on KEYPAD LED position KEY_BACK_LIGHT CL 435F WQ SD TS LD601 R602 47 LD600 CL 435F WQ SD TS 47 R603 0 R601 ICVS0514X350FR VA600 KYBD_BACKLIGHT VPWR Z 3 X B O X C O M ...

Page 107: ...Close Open Event Hall sensor U500 pin OUT is triggered MSM6280 Sense the Folder Event Start Change the Main board Insert the magnet Check the magnet in Folder Assy Approach the magnet to U500 Folder U500 pin is C508 Yes NO Yes Change the U500 NO Magnet position U500 Hall Sensor NA C508 R504 62 0 1u C505 GND1 2 5 GND2 IO_VDD 6 NC 3 4 OUT VDD 1 EUSY0268101 TK60012BM5 U500 FOLDER_DETECT_N VREG_MSMP_2...

Page 108: ...CD control signals are generated by MSM6280 The signal path is MSM6280 CN501 80pin Con LCD Module Start GO to power on trouble shooting Key LED is on Yes NO Press END key Disconnect and reconnect The LCD connector 80pin Con END LCD display OK No Yes Change the Main board Yes Disconnect and reconnect The LCD connector 44pin Con Yes NO Change of new LCD Yes Z 3 X B O X C O M ...

Page 109: ...ver Path MSM6280 RCV RCV CN501 LCD FPCB Receiver Start The sine wave appears at PIN43 PIN44 of CN501 Change the Main board YES Connect the phone to network Equipment and setup call Setup 1KHz tone out NO The sine wave appears at PIN43 PIN44 of CN104 YES NO Can you hear the tone Change receiver YES NO END Folder FPCB re connecting Z 3 X B O X C O M ...

Page 110: ...LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING 111 CN501 CN104 1KHz Sine wave Z 3 X B O X C O M ...

Page 111: ...1KHz tone out and insert headset NO Can you hear the tone YES END Re solder C503 C504 or Change the Main board NO Ear jack C501 0 1u D506 PRSB6 8C C510 33p 3 4 5 6 7 8 9 CN500 HSEJ 10S 05 1 10 11 12 13 14 2 D501 PRSB6 8C PRSB6 8C D500 2 2K R503 PRSB6 8C D503 C511 10p 33u C504 100K R502 51 R506 D504 PRSB6 8C PRSB6 8C D502 C509 10p C503 33u 100K R501 R500 100K 33p C512 33p C514 PRSB6 8C D505 C513 10...

Page 113: ... OK Re connect speaker NO Can you hear the tone Change the speaker NO YES END YES RCV_EN 0 NC 1 NO SELECT_SPK RCV 3 COM1 9 COM2 6 GND IN1 4 IN2 8 5 NC1 NC2 7 NO1 2 NO2 10 VCC 1 U301 NLAS5223BMNR2G 10 R309 10 R308 C314 0 1u TP310 RCV_EN VPWR RCV RCV SPK_RCV SPK_RCV LOW SHDN Audio AMP 8200p C318 1K R304 C321 1u R306 51K FB300 HB 1M1005 600JT R312 100K A2 GND1 GND2 A3 B3 GND3 GND4 C2 C3 GND5 GND6 D2 ...

Page 114: ...LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING 115 Connector R308 R309 1KHz Sine wave Z 3 X B O X C O M ...

Page 115: ...01 MIC1P MIC1N MSM6280 Start MICBIAS C303 or C305 is 1 8V Change main board NO Make a call Change the MIC NO YES Change the Main board Make sound to MIC Work well END YES NO YES Sine wave appears at C300 C301 YES MIC 0 1u C301 0 R300 C305 1u 10u C303 NA C302 0 1u C300 G1 2 3 G2 5 G3 1 OUT PWR 4 SUMY0010602 SP0204LE5 PB MIC300 33p C304 MIC1P MIC1N MICBIAS Z 3 X B O X C O M ...

Page 116: ...LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING 117 MIC1 C300 C301 C305 C303 C24 OR C29 C27 OR C28 Z 3 X B O X C O M ...

Page 117: ...ight reserved Only for training and service purposes Start EAR_SENSE_N D501 is 0V Yes END Make a call Change the MAIN board VREG_MSMP is biased by 2 7V R503 Change the Main PCB Yes OK NO NO NO Change the headset and retry YES Change MAIN board Sine wave appears at C501 Change the headset or Main board and retry NO Yes Z 3 X B O X C O M ...

Page 118: ...RSB6 8C C510 33p 3 4 5 6 7 8 9 CN500 HSEJ 10S 05 1 10 11 12 13 14 2 D501 PRSB6 8C PRSB6 8C D500 2 2K R503 PRSB6 8C D503 C511 10p 33u C504 100K R502 51 R506 D504 PRSB6 8C PRSB6 8C D502 C509 10p C503 33u 100K R501 R500 100K 33p C512 33p C514 PRSB6 8C D505 C513 10p R505 51 HPH_L HOOK_SENSE_N VREG_MSMP_2 7V MIC2P VREG_MSMP_2 7V EAR_SENSE_N HPH_R STEREO_DET_N R503 C501 D501 Z 3 X B O X C O M ...

Page 119: ...120 4 19 Vibrator MOTOR_PWR LCD FPCB Motor Start MOTOR_PWR is under 4V Operate the Vibrator Change the MAIN board or Check the LCD FPCB NO YES Change vibrator G3 G4 39 40 41 42 43 44 45 46 47 34 35 36 37 38 L500 56nH PRSB6 8C D508 D507 RB521S 30 MOTOR_PWR KEY_ROW 4 KEY_COL 4 KEY_COL 5 VPWR KEY_ROW 3 Main Board L500 Z 3 X B O X C O M ...

Page 120: ...GMDP application Before getting started set up LGMDP preferences from the Preferences of the file menu the way you want Click on the File menu and select Preferences Play a success sound This is an experimental feature To enable this simply check the box It will be played a wav file when the download has been completed Automatically run Select Port When LGMDP starts This option is designed to give...

Page 121: ...AD 122 2 Connecting to PC Click on the Select Port and then Select Port window will be pop up Check if state shows Enable for the port to be connected for downloading images Then click on the Connect button The port number COM9 and model name shall be different from that of the port number in the snapshot Z 3 X B O X C O M ...

Page 122: ...or training and service purposes 5 DOWNLOAD 123 The status Ready is displayed when the application is ready for downloading While the images are transmitted from PC to the handset a progressive bar Red box indicating the degree of transmission of data is displayed Z 3 X B O X C O M ...

Page 123: ...Inc All right reserved Only for training and service purposes The following slide describes how to use or set options in detail The model name shall be different from that of the model name in the snapshot 5 DOWNLOAD 124 1 2 3 6 4 5 7 8 Z 3 X B O X C O M ...

Page 124: ... calibration data user contents media and module are erased Only calibration data is kept when NV backup restore is checked Keep All Contents Maintain user data including WAP AD DRM Email Play lists images When downloading a new images user data stated above are maintained if this option is enable 5 Additional Options Display Information is defaulty not selected and user cannot choose Security The...

Page 125: ... shall be different from that of the folder name in the snapshot The folder name indicates the path where the image files are located if you select the image folder the program will automatically load images accordingly LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Z 3 X B O X C O M ...

Page 126: ... the image folder the program will automatically load images accordingly LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Automatically load images Z 3 X B O X C O M ...

Page 127: ...rom the LGMDP installation directory by clicking on the Browse button Click on the START button to start downloading Normally LGMDP will downloaded all files that need downloading To download selected image file onlysimply select the image file that user want to process downloading LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Z 3...

Page 128: ...g slides LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes NV backup Erase MODULE directory NV restore Erase MEDIA directory Download MEDIA Download MODULE EFS Erase Download PB Land QCSBL Download OEMSBL Download MODEM Reset Reset Download process Download End Download Start Reset Z 3 X B O X C O M ...

Page 129: ...t a new file for NV backup will be created in the displayed file name in the LGMDP installation directory Backing up NV data and backed up NV data will be stored in the LGMDP installation directory Erasing the existing directories and files before the Module image is downloaded Downloading the AMSS modem image 5 DOWNLOAD 130 Z 3 X B O X C O M ...

Page 130: ...ting the handset and re establishing the connection Restoring NV data which backed up in the Backing up process User can also restore NV data using NV Default image selection Rebooting the handset and re establishing the connection Erasing the existing directories and files before downloading the selected Media image Z 3 X B O X C O M ...

Page 131: ...2007 LG Electronics Inc All right reserved Only for training and service purposes 5 DOWNLOAD 132 Downloading Media image in progress Downloading Module image in progress Downloading process has completed successfully Z 3 X B O X C O M ...

Page 132: ... and service purposes 5 DOWNLOAD 133 4 Tools Device Manager allows to monitor current hardware that is installed on your PC Device Manager is designed to monitor USB connectivity and check where the COM has been installed Select Device Manager from the Tools of the file menu Z 3 X B O X C O M ...

Page 133: ... very useful for debugging Select Log Extractor from the Tools of the file menu and connect the phone with LGMDP by clicking on the Connect button When clicking on the Connect button this checks if the appropriate files such as LFAPP RecMngr bin err directory Debugging_Tip txt or Hidden_info bin are placed on the handset If they are exist then appropriate check boxes are checked accordingly Select...

Page 134: ...3 Troubleshooting Download Errors 1 NV Restore error When you meet the NV Restore error LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Z 3 X B O X C O M ...

Page 137: ...NV Backup files nv2 are shown The files are saved every NV Backup The name is based on the time when NV Backup is done LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Z 3 X B O X C O M ...

Page 138: ... 139 5 DOWNLOAD Select the proper file and click on Restore LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Z 3 X B O X C O M ...

Page 139: ...wnload and NV backup file restore at once use the NV Default function LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Must do Calibration after NV Restore Z 3 X B O X C O M ...

Page 140: ...mage connect the phone normal mode after emergency mode download and then you can do it 4 The NV data saved at LGMDP folder like this 5 Recommended that the Module and Media Image have to be downloaded at the same time 6 Erase EFS option will erase everything media module nv items and user data in the EFS area LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for trai...

Page 141: ...M LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Fig 6 1 1 UMTS 800 1900 GSM 850 GSM 900 DCS 1800 PCS 1900 RF Functional Block Diagram L705i doesn t use U1900 G850 GPS paths Z 3 X B O X C O M ...

Page 142: ...TG 5010LH 19 2MHz VCTCXO 19 2MHz U107 RFR6275 UMTS Receiver IC RX FL101 SAFEB2G14FA0F00 UMTS 2100 RX SAW filter RX FL107 EFCH881MTDAA UMTS 800 RX SAW filter RX FL103 SAYZY1G95EA0B00 UMTS 2100 Duplexer TRX FL106 EFSD836MF2S2 UMTS 800 Duplexer TRX U104 AWT6277R UMTS 2100 PA TX U106 AWT6307R UMTS 800 PA TX U103 CP0402A1950DNTR UMTS 2100 coupler TX U105 CP0402A0836BNTR UMTS 800 coupler TX UMTS 2100 TX...

Page 143: ...2 Interface Diagram LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Fig 6 1 2 L705i Interface Diagram L705i doesn t use U1900 G850 GPS paths Z 3 X B O X C O M ...

Page 144: ...X UMTS 1900 Rx RF signal TX_I Q I Q for Tx of RF RX_I Q I Q for Rx of RF Control signal ANT_SEL 0 1 2 Ant Switch Module Mode Selection UMTS GSM900 Tx Rx DCS Tx Rx PCS Tx Rx GSM PA_CTL signal GSM_PA_BAND DCS or PCS GSM Mode Selection GSM_PA_EN DCS or PCS GSM Power Amp Enable GSM_PA_RAMP DCS or PCS GSM Power Amp Gain Control UMTS PA_CTL signal PA_ON0 1 UMTS Tx Power Amp Enable LGE Internal Use Only ...

Page 148: ...13 1K 6p C106 1nH 1 2nH L120 L506 8p C138 130 R121 C196 L112 NA 100p NA L110 2 2u C200 C206 33p L124 NA C190 0 1u L140 47nH 22p C144 22p C143 180 R126 R110 680 R111 1K C164 4 7u 390p C147 4 7nH L108 75 R131 3 9nH L115 3 3nH L130 L100 EUSY0207001 2 GND IN 5 OUT1 1 OUT2 3 VCONT 4 6 VDD 18nH 5 6nH L123 UPG2010TB E3 U100 R112 1K 33p C122 C203 33p C192 4p L138 47nH L139 1 2nH L107 4 7nH 22p 130 R120 C1...

Page 149: ...AUXIP AE19 AA18 AUXOUT K19 AUX_PCM_CLK_GRFC14_GPIO80 AUX_PCM_DIN_GRFC13_GPIO14 N21 A1_3 M8 A1_4 M4 N11 A1_5 A1_6 N8 N6 A1_7 N2 A1_8 A1_9 N1 A2_1 AE9 A2_10 AC12 AE12 A2_11 AF12 A2_12 A2_13 AA13 AC13 A2_14 W13 A2_15 AE14 A2_16 A2_17 AC14 P2 A1_11 P6 A1_12 A1_13 P8 P11 A1_14 A1_15 R4 R6 A1_16 A1_17 T1 T2 A1_18 A1_19 R8 A1_2 L4 A1_20 T4 T6 A1_21 A1_22 T8 A1_23_SDRAM1_DQM2_GPIO78 U4 A1_24_GPIO79 V1 A1_...

Page 150: ...11 D10 A8 C10 A9 ALE M3 C4 BA0 TYA000BC00HOGG 0 1u C310 0 1u TP312 C316 0 1u TP314 C301 47K R301 TP313 0 R300 0 1u C308 EVLC18S02015 VA302 0 L300 10 R309 VA301 EVLC18S02015 TP309 C305 1u C307 0 1u C309 0 1u 10u C303 10 R308 1 10 2 3 4 5 6 7 8 9 G1 G2 C306 CN300 0 1u 8200p TP300 C318 1K R304 1 C1 2 C2 C3 3 4 C5 C6 5 C7 6 GND1 7 8 GND2 GND3 9 10 GND4 TP304 J300 0 1u C311 NA C302 TP308 TP305 0 1u C30...

Page 151: ...REG_TCXO 84 GND_SLUG 85 PON_RESET_N 71 AMUX_IN2 MPP2 72 VREG_RFTX 73 SPKR_BYP 74 SPKR_OUT_P 75 SPKR_IN_P 76 VDD_SPKR 77 SPKR_IN_M 78 SPKR_OUT_M 64 VDD_WLAN 65 CBL1PWR_N MPP4 66 VREG_RFRX2 67 CBL0PWR_N MPP3 68 VREG_RFRX1 69 BAT_FET_N 7 AMUX_IN1 MPP1 70 VDD_RF 57 TCXO_IN 58 MSM_INT_N 59 VBAT 6 VCOIN 60 REF_ISET 61 REF_GND 62 REF_BYP 63 VREG_WLAN 5 VREG_MSMP 50 SBST 51 VDD_MSM 52 TCXO_OUT 53 VDD_ANA ...

Page 152: ...03 EVLC18S02015 VA507 PRSB6 8C D503 C511 10p 33u C504 R508 100K 100K R502 C521 0 1u 51 R506 0 1u D504 PRSB6 8C C505 PRSB6 8C VA504 EVLC14S02050 D502 C520 0 1u VA508 C509 EVLC18S02003 10p PRSB6 8C D508 C518 0 1u D507 RB521S 30 C503 33u G2 10 INOUT_A1 1 2 INOUT_A2 INOUT_A3 3 4 INOUT_A4 9 INOUT_B1 INOUT_B2 8 7 INOUT_B3 INOUT_B4 6 FL507 ICVE10184E070R100FR G1 5 FL501 ICVE10184E070R100FR G1 5 G2 10 INO...

Page 153: ...4S02050 1 2 3 4 5 470n R606 CN600 10 VA603 608 UP EVLC14S02050 603 47 R603 VA602 DOWN 601 EVLC14S02050 OJ601 HOT601 OJ603 RIGHT 0 R601 EVLC14S02050 VA607 OJ600 OK NC4 5 ON_SW 11 RTS RX 2 3 TX VBAT 6 SEND UART CTS 12 DSR 10 1 GND NC1 4 7 NC2 NC3 8 9 EVLC14S02050 VA610 ICVS0514X350FR VA600 607 604 606 VA612 KEY_ROW 2 KYBD_BACKLIGHT KEY_ROW 1 KEY_ROW 2 5V_PWR EVLC14S02050 UART_TXM VREG_MSMP_2 7V KEY_...

Page 154: ...TA 4 LCD_MAKER_ID EBI2_DATA 5 EBI2_DATA 6 EBI2_DATA 7 LCD_ADS LCD_CS_MAIN_N LCD_IF_MODE0 LCD_IF_MODE1 EBI2_DATA 15 EBI2_DATA 14 EBI2_DATA 13 EBI2_DATA 12 CAM_DATA 2 CAM_DATA 1 CAM_DATA 0 VREG_LCD_2 8V EBI2_DATA 11 EBI2_DATA 10 EBI2_DATA 9 EBI2_DATA 8 LCD_RESET_N EBI2_WE_N VREG_MSMP_2 7V MLED_ANODE MLED_CATHOD5 MLED_CATHOD4 MLED_CATHOD3 MLED_CATHOD2 R_LED G_LED CAM_PCLK CAM_RESET_N CAM_P_DOWN VREG_...

Page 155: ...Y_ROW 0 KEY_ROW 1 8 10 5 SIDE KEY D 1 E A B C KEY_ROW 2 KEY_COL 5 KB101 TP1 KB100 CN1 1 2 3 4 5 7 CIRCUIT DIAGRAM LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Z 3 X B O X C O M ...

Page 156: ...02050 VA102 VA100 EVLC14S02050 1 1 0 2 3 4 5 6 7 8 9 G1 G2 G3 G4 CN100 KB102 KB103 KB101 KEY_COL 4 KEY_ROW 3 KEY_COL 5 KEY_ROW 4 KEY_COL 4 KEY_COL 5 KEY_ROW 3 KEY_ROW 4 KB100 7 CIRCUIT DIAGRAM LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Z 3 X B O X C O M ...

Page 158: ...nly Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 8 BGM Pin Map 159 8 BGM Pin Map 1 MSM6280 409 CSP land pattern drawing 2 Memory Bottom view USE NOT IN USE Z 3 X B O X C O M ...

Page 160: ...nternal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes U500 HALL EFFECT IC TK60012BM5G0L LD600 Key pad LED TK60012BM5G0L LD601 Key pad LED TK60012BM5G0L Z 3 X B O X C O M ...

Page 161: ... W2100 Tx SAW SAFEB1G95KA0F00 CN501 Camera Speaker Motor LCDconnector AXK8L80125BG CN500 Earphone connector HSEJ 10S 05 U404 Camera LDO ISL9011IRJBZ T U403 LCD LDO BH28PB1WHFV X400 X TAL CM315 12 5PF CN600 Side key FPCB soldering pad J300 SIM connector 5000 6P 1 8SL MIC300 Microphone SP0204LE5 PB4 U402 I O connector RA1R011HA1 FL100 FEM D2024 FL103 W2100Duplexer SAYZY1G95EA0B00 U102 GSM PAM SKY773...

Page 162: ...ver RFR6275 SW100 RF monitoring connector KMS 507 FL101 W2100 Rx SAW SAFEB2G14FA0F00 FL105 W850 Tx SAW EFCH836MTDB1 Q400 TA Charging control switch QST4 FL400 EMI filter for TA charging NFM18PC104R1C3 U400 PM IC PM6650 2M FL102 EGSM Tx SAW EFCH897MTDB1 U301 SPDT switch NLAS5223BMNR2G U300 Audio AMP TPA2005D1ZQYR U401 TVS for USB signal PLR0504F P FL107 W850 Rx SAW EFCH881MTDAA FL500 FL508 Arraid E...

Page 163: ... 164 9 PCB LAYOUT LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes CN100 Board to board connector AXK7L10227G Z 3 X B O X C O M ...

Page 165: ... 166 9 PCB LAYOUT LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LD100 Camera charging indicator LED EDLA0000201 Z 3 X B O X C O M ...

Page 166: ...ronics Inc All right reserved Only for training and service purposes CN105 Camera connector AXT314164 CN106 Multi key connector AXK8L10125G CN104 LCD connector AXK8L44125 CN102 Main LCD connector AXK7L80227G U100 Charging LED switching Tr UMH9NTN Z 3 X B O X C O M ...

Page 168: ...l At_Serial_Cmd xml Diag_NV6250_RevB dll Diag_NV6275 dll Diag_NV6280 dll Diag_NV dll DLL_E5515CD dll Directory File Model LG_CL_015 dll PwrSupply_Cmd xml Auto Cal CalAuto ComLMPLib_2_11 dll Dll_EzLooksMQ_015 dll GuiTk115d dll HK_32 exe ShieldBox_DIID dll L705i AutoSetup_100 xml Common Cal_Setup_Test xml Ezlooks xml LG_RfCal_Q3G6280N_Polar_003 dll NstProcedure_L705i_302 xml script_100 xml Spec_L705...

Page 169: ...sequence functions 5 LG_NsTest_E5515C_239 dll Auto RF Test DLL File including RF Test sequence functions 6 DLL_E5515CD DLL GPIB DLL File including measuring functions in E5515CD Test Set 10 2 How to use HOT KIMCHI Procedure 1 Click Logic Operation of SETTING menu bar 2 Select UART Port that PC can communicate with the phone 3 Select LOGIC MODE that you want Logic Mode 1 Calibration Only 2 Auto Tes...

Page 170: ...ram Hot Kimchi Procedure 4 Select the model name L705i 5 Click Start button LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes L705i Select L705i Click Start Z 3 X B O X C O M ...

Page 171: ... m e mode de ñ W WCDM CDMA 2 Cho 2 Cho os ose c e com port rt 3 Choose FT 3 Choose FT M M 4 Cli 4 Cli ck M Mod ode e Co Control ntrol button button 5 C 5 Choos ose ba e band ñ 210 2100MH 0MHz or 80 r 800MH MHz z 6 Cho 6 Cho os ose c e channel e l enter ter 7 Tx c 7 Tx c ontrol ntrol pann nnel el 8 W 8 Wri rite wa te wante ted d AG AGC value C value enter enter ñ W WCDM CDMA 344 344 1 2 3 4 5 6 7 8...

Page 172: ...M 2 Cho 2 Cho os ose c e com port rt 3 Choose FT 3 Choose FT M M 4 Cli 4 Cli ck M Mod ode e Co Control ntrol button button 5 C 5 Choos ose ba e band ñ E EGSM or DC or DCS or or PC PCS S 6 Choose cha 6 Choose cha nnel e l enter ter 7 Che 7 Check ck on T n Tx o on n 8 W 8 Wri rite wa te wante ted P d PA D DAC valu value GS GSM M 15 1500 000 9 C 9 Clic lick P PA D A DAC in input butto put butto n 1 2...

Page 174: ...35 36 37 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 11 EXPLODED VIEW REPLACEMENT PART LIST 11 1 EXPLODED VIEW LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Z 3 X B O...

Page 175: ...C D E F G H I J K L M N O P P O N M L K J I H G F E D C B A ASS Y EXPLODED VIEW LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Z 3 X B O X C O M ...

Page 176: ...GJ00 COVER ASSY FOLDER UPPER ACGJ0065401 Black D 5 MCJJ00 COVER FOLDER UPPER MCJJ0049401 MOLD PC LUPOY SC 1004A Black 9 5 MGAD00 GASKET SHIELD FORM MGAD0154001 COMPLEX empty Gold 12 5 MGAD01 GASKET SHIELD FORM MGAD0154101 COMPLEX empty Gold 11 5 MPBJ00 PAD MOTOR MPBJ0046801 COMPLEX empty Without Color 16 5 MPBN00 PAD SPEAKER MPBN0046401 COMPLEX empty Without Color 15 5 MPBQ00 PAD LCD SUB MPBQ00332...

Page 177: ... Zn Alloy Black 52 4 MDAC01 DECO SIDE MDAC0020701 CASTING Zn Alloy Black 53 4 MDAE00 DECO FOLDER UPPER MDAE0040601 PRESS STS shine silver C 5 4 MGAD00 GASKET SHIELD FORM MGAD0154201 COMPLEX empty Gold 21 4 MHFD00 HINGE FOLDER MHFD0015701 CASTING STS Without Color 54 4 MIDZ00 INSULATOR MIDZ0151501 COMPLEX empty Blue 17 4 MLAZ00 LABEL MLAZ0038303 PRINTING empty White 4 MTAB00 TAPE PROTECTION MTAB020...

Page 178: ...ty Black 64 4 MTAB TAPE PROTECTION MTAB0217501 COMPLEX empty Without Color 4 SNGF00 ANTENNA GSM FIXED SNGF0028601 3 1 5 dBd Internal Pb free_Pentaband MULTI 5 50 3 1 58 3 GMZZ00 SCREW MACHINE GMZZ0022401 1 4 mm 2 5 mm MSWR3 BK N STR HEX NONE 1 34 2 5 SWCH BLACK empty empty Black 66 3 MCCH00 CAP SCREW MCCH0113101 MOLD PC LUPOY SC 1004A Black 70 3 MCCH01 CAP SCREW MCCH0116801 MOLD PC LUPOY SC 1004A ...

Page 179: ...1001 14 V SMD 50pF 1005 7 VA102 VARISTOR SEVY0001001 14 V SMD 50pF 1005 7 VA103 VARISTOR SEVY0001001 14 V SMD 50pF 1005 6 SACD00 PCB ASSY FLEXIBLE SMT TOP SACD0047501 7 LD100 DIODE LED ARRAY EDLA0000201 RED YELLOW GREEN 2 COLOR 1 5 1 2 0 7 R TP 6 SPCY00 PCB FLEXIBLE SPCY0106201 POLYI 0 5 mm MULTI 5 L705ia F LCD 4 SACY01 PCB ASSY FLEXIBLE SACY0065901 L705i Back up Battery FPCB Black 25 5 SACE00 PCB...

Page 180: ...B ASSY MAIN SAFY0216801 N 57 4 SAFB00 PCB ASSY MAIN INSERT SAFB0078401 5 ADCA00 DOME ASSY METAL ADCA0070701 Black 56 5 SPKY00 PCB SIDEKEY SPKY0051701 POLYI 0 2 mm DOUBLE 4 SAFF00 PCB ASSY MAIN SMT SAFF0137701 5 SAFC00 PCB ASSY MAIN SMT BOTTOM SAFC0094701 6 C100 CAP CHIP MAKER ECZH0000810 9 pF 50V D NP0 TC 1005 R TP 6 C101 CAP CERAMIC CHIP ECCH0001002 180 pF 50V J NP0 TC 1005 R TP 6 C102 CAP CHIP M...

Page 181: ...ER ECZH0000844 68 pF 50V J NP0 TC 1005 R TP 6 C135 CAP CHIP MAKER ECZH0000844 68 pF 50V J NP0 TC 1005 R TP 6 C136 CAP CERAMIC CHIP ECCH0000120 39 pF 50V J NP0 TC 1005 R TP 6 C137 CAP CHIP MAKER ECZH0000844 68 pF 50V J NP0 TC 1005 R TP 6 C138 CAP CERAMIC CHIP ECCH0000109 8 pF 50V D NP0 TC 1005 R TP 6 C139 CAP TANTAL CHIP ECTH0004807 10 uF 10V M STD 1608 R TP empty empty 55TO 125C empty empty empty ...

Page 182: ...C CHIP ECCH0000143 1 nF 50V K X7R HD 1005 R TP 6 C171 CAP CERAMIC CHIP ECCH0000143 1 nF 50V K X7R HD 1005 R TP 6 C172 CAP CERAMIC CHIP ECCH0000155 10 nF 16V K X7R HD 1005 R TP 6 C173 CAP CERAMIC CHIP ECCH0000110 10 pF 50V D NP0 TC 1005 R TP 6 C176 CAP CERAMIC CHIP ECCH0009101 0 1 uF 6 3V K X5R TC 0603 R TP 6 C177 CAP CHIP MAKER ECZH0025920 1000 pF 16V K X7R HD 0603 R TP 6 C178 CAP CERAMIC CHIP ECC...

Page 183: ...J NP0 TC 1005 R TP 6 C231 CAP CERAMIC CHIP ECCH0000117 27 pF 50V J NP0 TC 1005 R TP 6 C232 CAP TANTAL CHIP ECTH0003704 4 7 uF 10V M STD 1608 R TP 6 C233 CAP CERAMIC CHIP ECCH0000155 10 nF 16V K X7R HD 1005 R TP 6 C234 CAP TANTAL CHIP ECTH0004807 10 uF 10V M STD 1608 R TP empty empty 55TO 125C empty empty empty empty 6 C235 CAP CERAMIC CHIP ECCH0009101 0 1 uF 6 3V K X5R TC 0603 R TP 6 C236 CAP CERA...

Page 184: ...CCH0000143 1 nF 50V K X7R HD 1005 R TP 6 C266 CAP CERAMIC CHIP ECCH0000143 1 nF 50V K X7R HD 1005 R TP 6 C267 CAP CERAMIC CHIP ECCH0000143 1 nF 50V K X7R HD 1005 R TP 6 C268 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 6 C269 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 6 C270 CAP CERAMIC CHIP ECCH0009101 0 1 uF 6 3V K X5R TC 0603 R TP 6 C271 CAP CHIP MAKER ECZH0003103 0 1 ...

Page 185: ...3103 0 1 uF 10V K X7R HD 1005 R TP 6 C407 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 6 C408 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 6 C409 CAP CERAMIC CHIP ECCH0000198 2 2 uF 6 3V M X5R TC 1005 R TP 6 C410 CAP CERAMIC CHIP ECCH0000198 2 2 uF 6 3V M X5R TC 1005 R TP 6 C411 CAP CERAMIC CHIP ECCH0006201 4 7 uF 6 3V K X5R TC 1608 R TP 6 C412 CAP CHIP MAKER ECZH0003103 0 ...

Page 186: ... CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 6 C442 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 6 C500 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 6 C501 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 6 C502 CAP CERAMIC CHIP ECCH0006201 4 7 uF 6 3V K X5R TC 1608 R TP 6 C503 CAP TANTAL CHIP ECTH0005201 33 uF 6 3V M L_ESR 2012 R TP empty empty empty 2 2X1 1X1 ...

Page 187: ...04 DIODE TVS EDTY0008606 DFN 2 7 82 V 150 mW R TP PB FREE 6 D505 DIODE TVS EDTY0008606 DFN 2 7 82 V 150 mW R TP PB FREE 6 D506 DIODE TVS EDTY0008606 DFN 2 7 82 V 150 mW R TP PB FREE 6 D507 DIODE SWITCHING EDSY0011901 EMD2 30 V 1 A R TP VF 1 5V IF 200mA IR 30uA VR 10V 6 D508 DIODE TVS EDTY0008606 DFN 2 7 82 V 150 mW R TP PB FREE 6 D509 DIODE TVS EDTY0008606 DFN 2 7 82 V 150 mW R TP PB FREE 6 D510 D...

Page 188: ...5pF 6 FL508 FILTER EMI POWER SFEY0011701 SMD SMD 18 V 4ch EMI_ESD Filter 10 Ohm 7 5pF 6 J300 CONN SOCKET ENSY0018701 6 PIN ETC 2 54 mm H 1 8 6 L100 INDUCTOR CHIP ELCH0001402 18 nH J 1005 R TP Pb Free 6 L103 INDUCTOR CHIP ELCH0003825 56 nH J 1005 R TP chip inductor PBFREE 6 L104 INDUCTOR CHIP ELCH0001402 18 nH J 1005 R TP Pb Free 6 L105 INDUCTOR CHIP ELCH0004704 4 7 nH S 1005 R TP 6 L107 INDUCTOR C...

Page 189: ... ELCH0003825 56 nH J 1005 R TP chip inductor PBFREE 6 L501 CAP CERAMIC CHIP ECCH0000127 82 pF 50V J NP0 TC 1005 R TP 6 L502 INDUCTOR CHIP ELCH0001056 2 7 nH S 1005 R TP PBFREE 6 L503 INDUCTOR CHIP ELCH0001056 2 7 nH S 1005 R TP PBFREE 6 L504 INDUCTOR CHIP ELCH0001404 1 5 nH S 1005 R TP 6 L505 INDUCTOR CHIP ELCH0004721 2 2 nH S 1005 R TP 6 L506 INDUCTOR CHIP ELCH0001403 1 nH S 1005 R TP PBFREE 6 MI...

Page 190: ...ohm 1 16W J 1005 R TP 6 R132 RES CHIP ERHY0003301 100 ohm 1 16W J 1005 R TP 6 R133 RES CHIP ERHY0003301 100 ohm 1 16W J 1005 R TP 6 R134 RES CHIP MAKER ERHZ0000529 1 5 Kohm 1 16W J 1005 R TP 6 R135 RES CHIP MAKER ERHZ0000203 10 Kohm 1 16W F 1005 R TP 6 R136 RES CHIP MAKER ERHZ0000351 11800 ohm 1 16W F 1005 R TP 6 R137 RES CHIP ERHY0005902 5 62 Kohm 1 16W F 1005 R TP 6 R139 RES CHIP ERHY0009502 10 ...

Page 191: ... ERHY0009527 47 Kohm 1 20W 0 05W J 0603 R TP 6 R411 RES CHIP ERHY0009527 47 Kohm 1 20W 0 05W J 0603 R TP 6 R412 RES CHIP MAKER ERHZ0000443 2200 ohm 1 16W J 1005 R TP 6 R415 RES CHIP MAKER ERHZ0003901 0 1 ohm 1 4W F 2012 R TP 0 1 1 1 4W 2012 R TP 6 R416 RES CHIP ERHY0009504 1 Kohm 1 20W 0 05W J 0603 R TP 6 R418 RES CHIP ERHY0009535 24 ohm 1 20W 0 05W J 0603 R TP 6 R419 RES CHIP MAKER ERHZ0000406 10...

Page 192: ... 1W Class D Mono Audio AMP 6 U301 IC EUSY0300101 WQFN 10 PIN R TP Small package Dual SPDT analog Switch PB Free 6 U302 IC EUSY0333402 FBGA 225 PIN ETC 2G LB 128Mx16 2 7V NAND 1G 8Mx4x32 SDRAM IC MCP 6 U400 IC EUSY0347301 BCCS 84 PIN R TP PA buck General Buck for RF CMOS Chip IC PMIC 6 U401 DIODE TVS EDTY0008607 SC70 6L 6 V 200 W R TP PB FREE 6 U402 CONNECTOR I O ENRY0005101 10 PIN 0 5 mm ANGLE Jap...

Page 193: ...4 V SMD 50pF 1005 6 VA612 VARISTOR SEVY0001001 14 V SMD 50pF 1005 6 X100 VCTCXO EXSK0007802 19 2 MHz 1 5 PPM 10 pF SMD 3 3 2 5 1 0 2PPM 2 8V SMD P TP 6 X201 X TAL EXXY0015501 48 MHz 50 PPM 12 pF 40 ohm SMD 3 2 2 5 0 7 6 X400 X TAL EXXY0024301 32 768 KHz 20 PPM 12 5 pF 70 Kohm SMD 3 2 1 5 0 9 40 C 85 C C0 1 05pF C1 fF 32 768 20PPM 12 5 SMD R TP 6 ZD400 DIODE TVS EDTY0008602 SOD 323 13 3 V 400 W R T...

Page 194: ...BAG MBAZ0004707 PRINTING empty Without Color 4 MCJA00 COVER BATTERY MCJA0048501 MOLD PC LUPOY SC 1004A Black 5 MCHZ00 COMPACT DISK MCHZ0029504 PRINTING empty Without Color 3 SBPP00 BATTERY PACK LI POLYMER SBPP0017101 3 7 V 860 mAh 1 CELL PRISMATIC LG L601i BATTERY I P NTT Pb Free PRISMATIC SILVER 68 2 APAY00 PACKAGE APAY0103204 L705i NTT BK Packing 480ea MB L 2ea PL 1ea S L 2ea Black 3 MPBA00 PAD ...

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LG L705i, Service Manual, Page: 11 / 196

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