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LG GD88O, Service Manual

The LG GD880 is a sleek and innovative smartphone with a range of impressive features. Unlock its full potential with the comprehensive Service Manual available for free download at manualshive.com. This manual provides detailed instructions and troubleshooting tips to ensure optimal performance and user experience.

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Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes

LGE Internal Use Only

3. TECHNICAL BRIEF

3. Technical Brief

The amplifier outputs drive the RF ports of the quadrature RF-to-baseband downconverters. The 
downconverted baseband outputs are multiplexed and routed to lowpass filters (one I and one Q) having 
passband and stopband characteristics suitable for GMSK or 8-PSK processing. These filter circuits include 
DC offset corrections. The filter outputs are buffered and passed on to the MSM7227 IC for further 
processing as shown in Figure 1-4.

3.13.2 GSM TRANSMITTER 
The RTR6285 transmitter outputs(HB_RF_OUT1 and LB_RF_OUT1) include on-chip output matching 
inductors. 50ohm output impedance is achieved by adding a series capacitor at the output pins. The 
capacitor value may be optimized for specific applications and PCB characteristics based on pass-band 
symmetry about the band center frequency as shown in Figure 1-3. 

The RTR6285 IC is able to support GSM 850/900 and GSM 1800/1900 mode transmitting. This design 
guideline shows a tri-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.

[Figure 1-3] GSM Transmitter Outputs Topologies 

Since GSM-850, GSM-900, GSM-1800, and GSM-1900 signals are time-division duplex (the handset can 
only receive or transmit at one time), switches are used to separate Rx and Tx signals in place of 
frequency duplexers – this is accomplished in the switch module. The GSM-850, GSM-900, GSM-1800, 
and GSM-1900 receive signals are routed to the RTR6285 through band selection filters and matching 
networks that transform single-ended 50-

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sources to differential impedances optimized for gain and 

noise figure. The RTR input uses a differential configuration to improve second-order inter-modulation 
and common mode rejection performance. The RTR6285 input stages include MSM-controlled gain 
adjustments that maximize receiver dynamic range. 

Summary of Contents for GD88O

Page 1: ...Service Manual Model GD880 Internal Use Only Service Manual GD880 Date March 2010 Issue 1 0 ...

Page 2: ...D880 Main Features 80 3 19 GD880 Main Component 81 4 TROUBLE SHOOTING 86 4 1 RF Component 86 4 2 Signal Path 88 4 3 CheckingTCXO Block 92 4 4 Checking FEM Block 93 4 5 CheckingWCDMA Block 96 4 6 Checking GSM Block 106 4 7 GPS WIFI BT FM Radio RF components 113 4 8 GPS WIFI BT FM Radio SIGNAL PATH 115 4 9 GPS WIFI BT FM RadioTROUBLE SHOOTING 116 4 10 Power ONTroubleshooting 122 4 11 ChargerTroubles...

Page 3: ... LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes ...

Page 4: ...ommon carrier telecommunication service of facilities accessed through or connected to it The manufacturer will not be responsible for any charges that result from 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 s...

Page 5: ...look slightly different G Interference and Attenuation Phone may interfere 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 g...

Page 6: ...rop Output LDO Liquid Crystal Display LCD Intermediate Frequency IF International Portable User Identity IPUI Global System for Mobile Communications GSM General Purpose Interface Bus GPIB Gaussian Minimum Shift Keying GMSK Flexible Printed Circuit Board FPCB Electrostatic Discharge ESD Electrical Erasable Programmable Read Only Memory EEPROM Digital Signal Processing DSP dB relative to 1 milli wa...

Page 7: ...ed Oscillator VCO Universal Asynchronous Receiver Transmitter UART Time Division Multiple Access TDMA Time Division Duplex TDD Travel Adapter TA Side Tone Masking Rating STMR Pseudo SRAM PSRAM Static Random Access Memory SRAM Sending Loudness Rating SLR Subscriber Identity Module SIM Surface Acoustic Wave SAW Real Time Clock RTC Root Mean Square RMS Receiving Loudness Rating RLR Radio Frequency RF...

Page 8: ...S1900 with seamless handover Phase 2 include AMR SIM Toolkit Class 1 2 3 C E Frequency Range WCDMA FDD1 TX 1920 1980 MHz WCDMA FDD1 RX 2110 2170 MHz WCDMA FDD8 TX 880 915 MHz WCDMA FDD8 RX 925 960 MHz EGSM TX 880 915 MHz EGSM RX 925 960 MHz GSM850 TX 824 849 MHz GSM850 RX 869 894 MHz DCS1800 TX 1710 1785 MHz DCS1800 RX 1805 1880 MHz PCS1900 TX 1850 1910 MHz PCS1900 RX 1930 1990 MHz Application Sta...

Page 9: ...l 5 2G Tx 12dBm 3G RX sensitivity WCDMA FDD1 106 7 dBm WCDMA FDD8 103 7 dBm EGSM 105 dBm GSM850 105 dBm DCS 1800 105 dBm PCS 1900 105 dBm TX output power WCDMA GSM GPRS WCDMA 24dBm 3 84MHz 1 3dBm EGSM 33dBm GSM850 33 dBm DCS 1800 30 dBm PCS 1900 30 dBm Class3 WCDMA Class4 EGSM Class4 GSM850 Class1 PCS Class1 DCS EDGE GSM 900 27 dBm DCS 1800 26 dBm PCS 1900 26 dBm E2 GSM900 E2 PCS E2 DCS GPRS compa...

Page 10: ... Stereo PC synchronization Yes Memory NAND Flash 4Gbit SDRAM 4Gbit Speech coding FR EFR HR AMR Data Fax Built in Data Fax support Vibrator Built in Vibrator Blue Tooth V2 1 EDR MIDI for Buzzer Function SW Decoded 72Poly Music Player MP3 AAC AAC Video Player MPEG4 H 263 Camcorder MPEG4 H 263 Voice Recording Yes Speaker Phone mode Support Yes Travel Adapter Yes CDROM Yes Stereo Headset Yes Data Cabl...

Page 11: ...er 1 key Profile Yes CLIP CLIR Yes Phone Book Name 5 Numbers 1 Memo 2 e mail 3 Group Select Picture Ringtone Anniversary day Total 1000 Member Last Dial Number Yes Total Call DB Max 100 LDN SIM N A Last Received Number Yes Total Call DB Max 100 LDN SIM N A Last Missed Number Yes Total Call DB Max 100 LDN SIM N A Search by Number Name Name and Number Group 30 Fixed Dial Number Yes Service Dial Numb...

Page 12: ...e Velocity Stop Watch Yes Wall Paper Yes WAP Browser Over WAP 2 0 Obigo Download Melody Wallpaper Yes Over WAP SIM Lock Yes Operator Dependent SIM Toolkit Class 1 2 3 C E MMS Yes Obigo LG MMS Client EONS Yes CPHS Yes V4 2 ENS No Camera Yes 5M AF Digital Zoom x16 JAVA Yes CLDC V1 1 MIDP V2 0 Download Over WAP Voice Dial No IrDa No Bluetooth Yes V2 0 HSP HFP OPP FTP server BPP A2DP AVRCP FM radio Ye...

Page 13: ...um due to modulation out to less than 1800kHz offset 200kHz 36dBm 600kHz 51dBm 56dBm Spectrum due to modulation out to larger than 1800kHz offset to the edge of the transmit band GSM 1800 3000kHz 63dBc 46dBm 3000kHz 6000kHz 65dBc 46dBm 6000kHz 71dBc 46dBm DCS 1800 3000kHz 65dBc 51dBm 6000kHz 73dBc 51dBm Spectrum due to switching transient 400kHz 19dBm 22dBm 5 0 23dBm 600kHz 21dBm 24dBm 5 0 26dBm R...

Page 14: ... Mcps 99 of power Adjacent Channel Leakage Power Ratio ACLR 33 dB 5 MHz 43 dB 10 MHz Spurious Emissions f fc 12 5 MHz 36 dBm 1 kHz RW 9 kHz f 150 kHz 36 dBm 10 kHz RW 150 KHz f 30 MHz 36 dBm 100 kHz RW 30 MHz f 1 GHz 30 dBm 1 MHz RW 1 GHz f 12 75 GHz 60 dBm 3 84 MHz RW 869 MHz f 894 MHz 60 dBm 3 84 MHz RW 1930 MHz f 1900 MHz 60 dBm 3 84 MHz RW 2110 MHz f 2155 MHz 67 dBm 100 kHz RW 925 MHz f 935 MH...

Page 15: ...0 001 when Îor 92 7 dBm 3 84 MHz Ioac 52 dBm 3 84 MHz 5 MHz Blocking Characteristic BER 0 001 when Îor 103 7 dBm 3 84 MHz Iblocking 56 dBm 3 84 MHz Fuw offset 10 MHz or Iblocking 44 dBm 3 84 MHz Fuw offset 15 MHz Spurious Response BER 0 001 when Îor 103 7 dBm 3 84 MHz Iblocking 44 dBm Intermodulation BER 0 001 when Îor 103 7 dBm 3 84 MHz Iouw1 46 dBm Fuw1 offset 10 MHz Iouw2 46 dBm 3 84 MHz Fuw2 o...

Page 16: ... Ack Nack 6 2 3 2 Start of CQI 1 0 6 3 Middle of CQI 0 0 6 4 End of CQI 5 2 3 Spectrum Emission Mask Sub Test 1 1 15 2 12 15 3 13 15 4 15 8 5 15 7 6 15 0 Frequency offset from carrier f Minimum requirement Measurement Bandwidth 2 5 3 5 MHz 35 15 f 2 5 dBc 30 kHz 3 5 7 5 MHz 35 1 f 3 5 dBc 1 MHz 7 5 8 5 MHz 35 10 f 7 5 dBc 1 MHz 8 5 12 5 MHz 49dBc 1 MHz Adjacent Channel Leakage Power Ratio ACLR Sub...

Page 17: ...0MHz 1GHz 30 dBm above 1GHz 12 75GHz 47 dBm 1 8GHz 1 9GHz 47 dBm 5 15GHz 5 3GHz Rx Min input Sensitivity 76dBm 1Mbps 2Mbps 5 5Mbps 11Mbps FER 8 Rx Max input Sensitivity 10dBm 1Mbps 2Mbps 5 5Mbps 11Mbps FER 8 Rx Adjacent Channel Rejection 35dB FER 8 interference input signal 70dBm fc 25MHz 11Mbps 11 35 15 f 2 5 dBc 3 5 7 5 MHz 35 1 f 3 5 dBc 1 MHz 7 5 8 5 MHz 35 10 f 7 5 dBc 1 MHz 8 5 12 5 MHz 49dB...

Page 18: ...dBm 30MHz 1GHz 30 dBm above 1GHz 12 75GHz 47 dBm 1 8GHz 1 9GHz 47 dBm 5 15GHz 5 3GHz Rx Min input Sensitivity PER 10 82dBm 6Mbps 81dBm 9Mbps 79dBm 12Mbps 77dBm 18Mbps 74dBm 24Mbps 70dBm 36Mbps 66dBm 48Mbps 65dBm 54Mbps Rx Max input Sensitivity 20dBm 6 9 12 18 24 36 48 54Mbps PER 10 Rx Adjacent Channel Rejection PER 10 ACR 16dB 6Mbps ACR 15dB 9Mbps ACR 13dB 12Mbps ACR 11dB 18Mbps ACR 8dB 24Mbps ACR...

Page 19: ... 20 LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes 2 PERFORMANCE GD880 Product SPEC 2 7 GD880 Figures ...

Page 20: ...th limited OTG capabilities Integrated high speed USB PHY Integrated wideband stereo codec for digital audio applications Direct interface to digital camera module with video front end VFE image processing GPS position location capabilities Vocoder support GSM HR FR EFR AMR and AMR WB Advanced 12 Ý 12 Ý1 05 mm 0 4 mm pitch 560 NSP High performance ARM1136JF S 600 MHz application processor Industry...

Page 21: ...bit EDGE PAM I2C EBI2 ADDR TX WCDMA 900 2100 1900 TX DAC EBI1 DATA EBI1 ADDR Duplexer WCDM A PAM DDRSDRAM 2Gbit Flash 4Gbit Charge Pump BD6084 8CH LCD_PWM SDIO2 Ambient Light Sensor RF Block 8CH ALC SDIO2 Speaker Line O P N HPH_R L EAR1OP N Receiver Micro SD UART3 UIM2 UART2 DM I2C Touch Sensor Proximity Sensor Speaker AMP E h R L TCXO_RTR_19 2MHz 3 5ĭ Earphone PM_SSBI USB I F MIC1P UART2 UIM I2C ...

Page 22: ...E 3 3V MAX 10mA USB LDO 3 3V BATT_FET_N VPWR MCP SDRAM 1 8V MAX 180mA NAND 1 8V MAX 30mA RTR6285 GSM PAM WCDMA PAM VDDA 2 7V MAX 93mA VDDM 2 6V MAX 10mA VDDA 2 1V MAX 70mA VREG_RF_2 7V 150mA VREG_SMPS_2 1V 300mA VREG_RFRX1 VSW_PA VREG_GP2 GPS LNA VREG_LCD_2 8V 150mA LCD module VIO 1 8V WCDMA PAM VREG_SYNT VREG_MSME2 VREG_GP1 Motion Sensor 2 7V MAX mA VREG_GP6 VREG_SENSOR_2 6V 300mA Proximity senso...

Page 23: ...ock Diagram of System Power Block2 BD6084GUL POWER Block VREG_MSMP_2 6V BD6084GUL CAM_VDD_2 8V CAM_VDD_1 8V LDO2 150mA LDO1 150mA LDO3 150mA 5M CAMERA VIO CAM_AF_2 8V V_PWR LDO4 150mA VBAT VGA CAMERA Touch IC TOUCH_VDD_3 3V MLED 7ea MLEDOUT 450mA LCD_BACKLIGHT_4 8V WIFI BT FM MODULE VBAT VDDIO VDDIO_SD VREG_MSMP_2 6V LDO 2 8V 26MHz TCXO for WIFI BT FM MUIC Audio Sub System ...

Page 24: ...microprocessor subsystem 16 kB instruction and 16 kB data cache ARM version 5TEJ instructions Higher performance five stage pipeline Harvard cached architecture Higher internal CPU clock rate with on chip cache Internal watchdog and sleep timers QDSP5000 320 MHz application digital signal processing ADSP 512 kB L2 cache QDSP4000 122 88 MHz modem digital signal processing MDSP 3 3 2 Memory support ...

Page 25: ...l channels including the broadcast channel BCH if present Up to three dedicated physical channels DPCHs Spreading factor SF range support from 4 to 256 Support for the following transmit diversity modes Space time transmit diversity STTD Time switched transmit diversity TSTD Closed loop feedback transmit diversity CLTD The uplink supports the following specifications The uplink provides the follow...

Page 26: ...when the HS DSCH is active STTD on both associated DPCH and HS DSCH simultaneously CLTD mode 1 on the DPCH when the HS PDSCH is active STTD on HS SCCH when either STTD or CLTD mode 1 is configured on the associated DPCH TFC selection limitation on the UL factoring in transmissions on the HS DPCCH as required in TS 25 133 3 3 3 3 HSUPA The MSM7227 device supports the release 6 March 2006 standard f...

Page 27: ... and non transparent modes for CS data and fax No subrates are supported 3 3 3 5 GPRS Packet switched data GPRS DTM simple class A operation Multislot class 12 data services CS schemes CS1 CS2 CS3 and CS4 GEA1 GEA2 and GEA3 ciphering Maximum of four Rx timeslots per frame 3 3 3 6 EDGE EDGE E2 power class for 8 PSK DTM simple class A multislot class 12 Downlink coding schemes CS 1 4 MCS 1 9 Uplink ...

Page 28: ...ported multimedia features 3 3 4 1 General multimedia Additional general purpose MIPS QDSP5000 aDSP at 320 MHz Dedicated hardware accelerators and compression engines Improved Java BREW and game performance 3 3 4 2 Camera interface High quality digital camera processing supporting CCD or CMOS image sensors up to 8 megapixels Up to 12 bit data width with timing synchronization via discrete or embed...

Page 29: ...ixel triangles s peak 3D triangle rate 166 megapixel s peak 3D pixel draw rate 1660 megapixel s effective 3D pixel rate 532 megapixel s peak 3D pixel reject rate 207 megapixel four component vector instructions s 166 megapixel s 2D OVG pixel draw rate 3 3 4 5 Audio processing Integrated wideband stereo codec 16 bit DAC with typical 88 dB dynamic range Sampling rates up to 48 kHz on the speaker pat...

Page 30: ... High speed serial MDDI port that optimizes the interconnection cost between the MSM device and LCD panel MDDI V1 0 interface that supports up to 384 Mb s link rate Dual displays Primary LCD controller LCDC or MDDI FWVGA resolution 16 bit 18 bit and 24 bit true color depth on screen buffer support Secondary EBI2 interface up to WQVGA resolution 16 bit 18 bit and 24 bit true color depth Mobile disp...

Page 31: ... ESN and SIMLock Enables compliance with CMLA and OMTP TR0 specifications SecureMSM platform features include Secure boot protects against reflashing attacks Ensure device starts with known and trusted software Data integrity and authenticity of code is verified every time phone starts Secure execution environment Maintains integrity of device at run time Memory separation keeps secret application...

Page 32: ...og baseband interfaces support UMTS diversity Rx plus S GPS Tx analog baseband supports all phone transmission modes PM7540 status and control SSBI Interrupt port and other dedicated clock and control signals TCXO enable and VCTCXO frequency control via PDM waveform Three housekeeping ADC inputs for monitoring analog sensors Selectable reference 12 bit resolution 10 bit accuracy sampled at TCXO 8 ...

Page 33: ...nerates all the regulated voltages needed to power 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...

Page 34: ... 35 Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 3 TECHNICAL BRIEF Figure PM7540 Functional Block Diagram 3 Technical Brief ...

Page 35: ...ied or not For additional accuracy or to capture variations over time this voltage is routed internally to the housekeeping ADC via the analog multiplexer PM7540 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 contacts of the pass tran...

Page 36: ...ontrol and powered from VDD is provided by the PM7540 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 nickel based 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 3 Technical Brief PM7540 Input Powe...

Page 37: ... battery voltage reaches a target voltage 4 2V The end of constant voltage charging is commonly detected 10 of the full charging current Charging Method CC CV Constant Current Constant Voltage Maximum Charging Voltage 4 2V Maximum Charging Current 660mA Nominal Battery Capacity 900mAh Charging time Max 3h 30m Full charge indication current icon stop current 50mA Cut off voltage 3 30V 3 Technical B...

Page 38: ... or global interconnect block and communicate over a 64 bit non blocking AXI bus protocol The AXI bus bridge provides the arbitration logic for all of the bus masters y EBI1 Features Support for only low power memories at 1 8 V I O power supply voltage AXI bus frequencies up to 133 MHz A 16 bit 32 bit static and dynamic memory interface y DDR SDRAM interface features include Supports both 32 bit D...

Page 39: ...k Diagram of Memory Interface MSM7227 DDR SDRAM 2Gbit NAND 4Gbit SDRAM_D 31 0 SDRAM_ADDR 13 0 nSDRAM_WE nSDRAM_CS SDRAM_DCLK 1 0 SDRAM_CKE nSDRAM_RAS nSDRAM_CAS nNAND_FLASH_CS nOE2 nWE2 nUB2 nLB2 nRESETOUT1 NAND_FLASH_READY EBI2_DATA 15 0 EBI1 EBI2 External Memory MICRO SD card MMC_DATA 3 0 MMC_CMD MMC_CLK SDRAM_DQM 3 0 SDRAM_DQS 3 0 4 MICROSD_DATA 3 0 MICROSD_CM MICROSD_CLK ...

Page 40: ... to the power amplifier y DAC_REF Reference input to the MSM Tx data DACs B the others y TRK_LO_ADJ TCXO 19 2M Control y PA_ON0 PA_RANGE0 WCDMA 1900 TX Power Amp Enable y ANT_SEL 0 2 Ant Switch Module Mode Selection WCDMA GSM Tx Rx DCS PCS Tx Rx y GSM_PA_BAND GSM DCS PCS Band Selection of Power Amp y GSM_PA_RAMP Power Amp Gain Control of APC_IC y GSM_PA_EN Power Amp Gain Control Enable of APC_IC C...

Page 41: ... WLAN_CLK WLAN SDIO Clock Input WLAN_SDIO 3 0 WLAN SDIO Data Line WLAN_RESET_N Low asserting reset for WLAN core WLAN_HOST_WAKEUP WL_HOST_WAKE signal output 2 BT BT_UART_RXD Bluetooth UART Serial Input BT_UART_RTS Bluetooth UART Request to Send Active low request BT_UART_CTS Bluetooth UART Clear to Send Active low clear BT_UART_TXD Bluetooth UART Serial Output BT_PCM_CLK BT PCM clock can be PCM ma...

Page 42: ...ICAL BRIEF 3 Technical Brief E FM Radio interface y FM_ANT FM RF input y SLEEP CLK External reference oscillator input 32 768KHz y FM_AUDIO_R Right audio line output digital input data y FM_AUDIO_L Left audio line output digital frame synchronization Figure Block Diagram of WiFi Interface Figure Block Diagram of BT Interface ...

Page 43: ...7227 transceiver WCDMA PAM DPX 4 4 4 W900_TX_OUT RFOUT_LOW 4 PDET IN RX_WCDMA_900 RX_WCDMA_2100 GPS_IN RTR_RX_I Q RTR_DRX_I Q I Q_IP M_CH0 I Q_IP M_CH1 PRX_I Q P N DRX_I Q P N GPS_IN WPRXSE2 WPRXLB LB_RF_OUT2 GSM_IN RFin_Low RFOUT_LOW WCDMA_850 MSM7227 DPX W900 4 RTR_SSBI W2100_TX_OUT W2100_PA_ON W900_PA_ON W_PA_R0 PDET_IN RX_WCDMA_900 GPIO59 PA_ON0 GPIO_22 PA_RANGE0 SBDT TCXO PDET_IN Vmode Ven_Lo...

Page 44: ... 45 Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 3 TECHNICAL BRIEF 3 Technical Brief Figure Block Diagram of RF Interface ...

Page 45: ... control signals are followed y USIM_CLK USIM Clock y USIM_Reset USIM Reset y USIM_Data USIM Data T Rx 3 6 2 2 UART Interface UART signals are connected to MSM GPIO through IO connector with 115200 bps speed 3 Technical Brief GPIO_Map Name Note GPIO_86 UART3_RX Data_Rx GPIO_87 UART3_TX Data_Tx Table UART Interface Figure SIM Interface MSM7227 PM7540 USIM USIM CLK USIM Reset USIM Data USIM Data USI...

Page 46: ...nd other devices such as printers keyboards mice etc to act as peripherals The OTG supplement creates a new class of devices called OTG devices OTG devices can act as either hosts or peripherals depending upon how they are connected and or used The MSM7227 device contains a new USB high speed function that is based on a embedded UTMI core with a UTMI low pin interface ULPI compatible port The MSM ...

Page 47: ...y There are 4 main key buttons that are controlled by MSM7227 Refer to the Side Key circuit Power Button Key is connected to PMIC PM7540 KPD_PWR_N 3 Technical Brief Table Key Matrix Mapping Table Figure Power ON OFF Suspend Button Key circuit KEY_COL 0 KEY_COL 1 KEY_ROW 0 FOCUS VOL_DOWN KEY_ROW 1 SHUTTER VOL_UP 470 R306 D302 KB300 PM_ON_SW POWER ON ...

Page 48: ... for training and service purposes LGE Internal Use Only 3 TECHNICAL BRIEF 3 Technical Brief Figure Camera Key Circuit Figure Volume Key Circuit KB301 KB302 KEY_ROW 0 KEY_ROW 1 KEY_COL 1 VOL UP VOL down SW300 C C_ B B_ D A KEY_ROW 0 KEY_ROW 1 KEY_COL 0 AF capture ...

Page 49: ...T_PCM_CLK BT_WAKEUP P U E K A W _ T S O H _ N A L W ANT_SEL3 GSM_PA_BAND GSM_PA_EN ANT_SEL2 ANT_SEL1 1 R _ A P _ W RTR_SSBI A D S _ C 2 I _ O I D U A N E _ O X C T I B S S _ C I M P L C S _ C 2 I _ O I D U A N E _ S A I B _ C I M _ S H N _ T E S E R _ T V C _ D C L MICROSD_DATA 0 MICROSD_DATA 1 MICROSD_DATA 2 MICROSD_DATA 3 MICROSD_CMD MICROSD_CLK LIN_MOTOR_EN TOUCH_I2C_SCL TOUCH_I2C_SDA N _ T E S...

Page 50: ...d Only for training and service purposes LGE Internal Use Only 3 TECHNICAL BRIEF Figure Touch Sensor Block Diagram MSM7227 U200 GPIO2 TOUCH_IC2_SCL GPIO3 TOUCH_IC2_SDA GPIO84 TOUCH_ACK T1021 TOUCH IC VREG_TOUCH 3 0V TOUCH PAD SENSOR X Y Channels LCD MODULE ...

Page 51: ...0pin Main sub I F connector MIC 2 LINE_OP LINE_ON Analog switch SPK_N SPK_P RCV_N RCV_P RCV_N RCV_N MIC_P MIC_P MIC_1P MIC_2P FM_AUDIO_L FM_AUDIO_R EAR_MICP EAR_L EAR_R 3 7 1 Overview of Audio Sound BT path 3 Technical Brief 3 7 Audio and sound Figure Block diagram of Audio Sound path PCM AUDIO_I2C_SDA Receiver Head Set MSM7200 A CPU BT_PCM_OUT XTALP ANT LBEH19NUBC WLAN BT FM Audio Subsystem MAX98...

Page 52: ...se voltages and currents required by the codec This circuit requires a single capacitor of 0 1 ɆF to be connected between the CCOMP and GND pins The on chip voltage reference also provides a microphone bias voltage required for electret condenser microphones typically used in handset applications The MICBIAS output pin is designed to provide 1 8 V DC while delivering as much as 1 mA of current Aud...

Page 53: ...ions limiting circuitry and spread spectrum modulation greatly reduces EMI while eliminating the need for output filtering used in traditional Class D devices The stereo Class AB headphone amplifier in the MAX9877 uses Maxim s patented DirectDrive architecture that produces a ground referenced output from a single supply eliminating the need for large DC blocking capacitors saving cost space and c...

Page 54: ... 55 Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 3 TECHNICAL BRIEF Figure Detailed diagram of MAX9877 audio interface ...

Page 55: ...C211 22u 33p C7 39p C223 MIC_VGND GND D N G V _ C I M R _ O I D U A _ M F L _ O I D U A _ M F N O _ E N I L P O _ E N I L P _ V C R N _ V C R L _ H P H R _ H P H P C I M _ R A E P _ C I M n i p 5 E o t e s o l C DNI C1 MIC400 4 3 2 1 P G1 G2 O MIC401 4 3 2 1 P G1 G2 O MIC_BIAS MIC_1P MIC1_VGND SUMY0010609 SMD TOP SMD TOP SUMY0010609 DNI C1 10u 6 0 4 C 15p 7 0 4 C 47p 8 0 4 C MIC400 4 3 2 1 P G1 G2...

Page 56: ...500 C8 100p 2 R 1K 47 R508 D502 100n L500 47p C517 47p C518 D503 4 7u C503 FM_ANT EAR_SENSE HOOK_ADC HOOK_ADC EAR_MICP EAR_MICP HS_MIC_BIAS_EN EAR_R EAR_L Close EAR_SENSE Open HIGH detect LOW S W 1u 1 2 5 C 4 7K 5 0 5 R 4 7K 0 0 5 R VREG_MSMP_2 6V C505 1u 10u C506 1u 2 0 5 C 22n C509 22n C510 220n C508 220n C507 VPWR IC500 4 C 3 D B4 D4 C3 B3 B5 B2 D5 C2 C1 D2 D1 A2 A1 A5 A4 5 C 1 B 3 A S S V D D ...

Page 57: ...AM_DATA 9 MCAM_PWDN 5M CAMERA CON 7 5pF FL200 0 1 5 6 4 7 3 8 2 9 1 INOUT_A1 INOUT_B1 INOUT_A2 INOUT_B2 INOUT_A3 INOUT_B3 INOUT_A4 INOUT_B4 1 G 2 G 7 5pF FL201 0 1 5 6 4 7 3 8 2 9 1 INOUT_A1 INOUT_B1 INOUT_A2 INOUT_B2 INOUT_A3 INOUT_B3 INOUT_A4 INOUT_B4 1 G 2 G 7 5pF FL202 0 1 5 6 4 7 3 8 2 9 1 INOUT_A1 INOUT_B1 INOUT_A2 INOUT_B2 INOUT_A3 INOUT_B3 INOUT_A4 INOUT_B4 1 G 2 G CAM_PCLK CAM_HSYNC CAM_D...

Page 58: ...ctive H 22 GND Ground Ground 23 S_CAM_HSYNC Input SYNC 24 S_CAM_VSYNC Input SYNC 25 GND Ground Ground 26 S_CAM_I2C_SCL Input I2C Clock 27 S_CAM_I2C_SDA Input Output I2C Data 28 GND Ground Ground 29 S_MCAM_RESET_N Input Camera reset Active L 30 GND Ground Ground 31 CAM_VDD_2 8V Power Digital Power 2 8V 32 CAM_VDD_1 8V Power Digital Power 1 8V 33 GND Ground Ground 34 CAM_VDD_2 8V Input Digital Power...

Page 59: ..._2 6V V 6 2 _ R O S N E S _ G E R V RCV_P RCV_N VBACK_UP MIC_BIAS LCD_CVT_INT LCD_CVT_RESET_N TOUCH_I2C_SDA TOUCH_I2C_SCL KEY_ROW 0 KEY_ROW 1 KEY_COL 0 KEY_COL 1 MOTION_INT LCD_SUBPM_RESET_N LCD_SUBPM_I2C_SCL LCD_SUBPM_I2C_SDA MOTION_I2C_SCL MOTION_I2C_SDA PROXI_I2C_SCL PROXI_I2C_SDA PROXI_OUT LIN_MOTOR_EN LIN_MOTOR_PWM MICROSD_CLK MICROSD_CMD SPK_P SPK_N MIC_SEL MIC_P MICROSD_DET_N MICROSD_DATA 3...

Page 60: ...L_EN I2C MDDI_P_DATA_P MDDI_P_DATA_M MDDI_P_STB_M MDDI_P_STB_P LCD_CVT_RESET LCD_CVT_INT LCD_CVT_VSYNC LCD_RESET_N 3 2 TFT LCD LCD backlight control LCD module BD6084GUL LCD Backlight Driver 2 MSM7227 7 PM7540 VREG_RGB_1 5V VREG_RGB_2 6V VREG_LCD_1 8V VREG_LCD_2 8V S1D13775B00B60L RGB converter 24 4 WLED1 7 WLED_PWR LCD_R 7 0 B 7 0 G 7 0 LCD_SYNC LCD_CS_N LCD_SDI LCD_SCL LCD_RESET_N I O Vcc 1 8V V...

Page 61: ...VDD_2 8V 0 1u C114 VREG_MSMP_2 6V 1 2 1 1 R DNI 3 1 1 R TOUCH_I2C_SDA TOUCH_I2C_SCL TOUCH_ACK LCD_RESET_N LCD_MAKER_ID MLED_OUT MLED1 MLED3 MLED5 LCD_PWM MLED2 MLED4 MLED6 FLT_LCD_R 7 FLT_LCD_R 6 FLT_LCD_R 4 FLT_LCD_R 3 FLT_LCD_R 2 FLT_LCD_R 1 FLT_LCD_R 0 FLT_LCD_G 7 FLT_LCD_G 6 FLT_LCD_G 2 FLT_LCD_G 0 FLT_LCD_B 7 FLT_LCD_B 6 FLT_LCD_B 5 FLT_LCD_B 4 FLT_LCD_B 3 FLT_LCD_B 2 FLT_LCD_B 1 FLT_LCD_B 0 ...

Page 62: ... Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 3 TECHNICAL BRIEF UGp G G tGj Gt G Gz iGi ZUG Gi 3 8 5 Pin Description Input Signal and Power Pin Description 60Pin AXT660124 ...

Page 63: ...64 LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes 3 TECHNICAL BRIEF Table Interface between LCD Module and MAIN Board 3 Technical Brief ...

Page 64: ...O123 PROXI_SDA GPIO122 PRGXI_SCL 0 1u C301 2 2u C302 4 7K R308 4 7K R309 VREG_SENSOR_2 6V VREG_SENSOR_2 6V R310 4 7 10u C304 U300 5 4 6 3 7 2 8 1 A D E L L C S C D E L A D S C C V O I V T U O V D N G 10 R311 VREG_SENSOR_2 6V VREG_SENSOR_2 6V 1u C305 PROXI_I2C_SCL PROXI_I2C_SDA PROXI_OUT When call connected the object is moved nearer to the proximity sensor LCD backlight and Touch screen is disable...

Page 65: ...urn on automatically controls brightness of the display backlight U801 Backlight driver IC BD6083 used I2C interface to MSM7227 Main PCB U101 Luminance Sensor SPK_FPCB 3 Technical Brief 3 10 Luminance Sensor Luminance Sensor Schematic MSM7227 BD6083GUL Luminance Sensor Block Diagram U301 U100 BD6084GUL U101 Backlight driver IC BD6084GUL used I2C interface to SM7227 Main PCB U301 Luminance Sensor F...

Page 66: ... 11 Motion Sensor Main Board Luminance Sensor Block Diagram U200 MSM7227 U200 MSM7227 U303 BMA150 U303 BMA150 GPIO38 Motion_I2C_SDA GPIO37 Motion_I2C_SCL GPIO 18 Motion_INT VREG_MSMP_2 6V Sub PCB Motion Sensor Schematic U303 2 1 1 1 6 5 7 4 8 3 9 2 10 1 NC1 NC2 VDD VDDIO GND SDI INT SDO CSB SCK 1 T O N 2 T O N 0 1u C300 VREG_MSMP_2 6V TP300 1u C309 4 7K 5 1 3 R 4 7K 6 1 3 R VREG_MSMP_2 6V MOTION_I...

Page 67: ...me The strength of vibration is determined by the duty cycle of PWM DC_PWM_MAG for DC motor LIN_PWM for linear motor U302 SM100 is Linear motor driver IC 3 Technical Brief 3 12 Vibrators Linear Motor Schematic VB300 2 1 100n L300 100n L301 VREG_MOTOR_3 0V 1u C307 3 9n C308 3 1 3 R 510K 10K 4 1 3 R U302 9 5 4 6 3 7 2 8 1 EN V1 SIN VSS TYPE VCC OCT V2 D N G P LIN_MOTOR_EN LIN_MOTOR_PWM Linear Motor ...

Page 68: ...urposes LGE Internal Use Only 3 TECHNICAL BRIEF 3 Technical Brief Vibrator Block Diagram U302 MSM7227 U302 MSM7227 Main Board GPIO 28 LIN_PWM GPIO 58 LIN_MOTOR_EN U302 Linear motor Circuitry U302 Linear motor Circuitry Linear motor connector U200 GPIO 28 LIN_MOTOR_PWM GPIO 26 LIN_MOTOR_EN ...

Page 69: ...eiver front end Module GSM 850 GSM 900 GSM 1800 and GSM 1900 receiver inputs use differential configurations to improve common mode rejection and second order non linearity performance For example Figure 1 2 shows receiver input topologies for DCS and PCS GSM 850 900 have the same receiver input topologies The balance between the complementary signals is critical and must be maintained from the RF...

Page 70: ...etry about the band center frequency as shown in Figure 1 3 The RTR6285 IC is able to support GSM 850 900 and GSM 1800 1900 mode transmitting This design guideline shows a tri 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 Figure 1 3 GSM Transmitter Outputs Topologies Since GSM 850 GSM ...

Page 71: ... and common mode rejection performance The gain of the UMTS frontend amplifier and the UMTS second stage differential amplifier are adjustable under MSM control to extend the dynamic range of the receivers The second stage UMTS Rx amplifiers drive the RF ports of the quadrature RF to baseband downconverters The downconverted UMTS Rx baseband outputs are routed to lowpass filters having passband an...

Page 72: ...rcuits create the necessary LO signals for nine different frequency converters The UMTS transmitter also employs the ZIF architecture to translate the signal directly from baseband to RF This requires FLO to equal FRF and the RTR6285 IC design achieves this without allowing FVCO to equal FRF The RTR6285 IC is able to support UMTS 2100 1900 1800 1700 and 850 mode transmitting This design guideline ...

Page 73: ... Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes 3 TECHNICAL BRIEF 3 Technical Brief Figure 1 5 RTR6285 IC Functional Block Diagram ZUG Gi m GXU Gy y Y_ GpjGm Gi Gk ...

Page 74: ...from RF to baseband and from baseband to RF Two fully functional fraction N synthesizers including VCOs and loop filters are integrated within the RTR6285 IC In addition the RTR6285 has a third synthesizer used for GPS operation The first synthesizer PLL1 in the RTR6285 creates the transceiver Los that support the UMTS transmitter and all four GSM band receivers and transmitters including GSM850 G...

Page 75: ...res 5th generation of CoolPAM circuit technology which supports 3 modes bypass mid and high power modes The CoolPAM is stage bypass technology which enables power amplifier to lower power consumption Active bypass feature is added to 5th generation to enhance power added efficiency at low output range and this technology extends talk time of mobiles more by further saving power amplifier s current...

Page 76: ... PM7540 IC controls the handset power up sequence including a special VCTCXO warm up interval before other circuits are turned on This warm up interval as well as other TCXO controller functions is enabled by the MSM TCXO_EN line The PM7540 IC VREG_TCXO regulated output voltage is used to power the VCTCXO and is enabled before most other regulated outputs Any GSM mode power control circuits within...

Page 77: ...dset operating modes with an antenna switch module select the operating frequency and band UMTS operation requires simultaneous reception and transmission so the UMTS Rx Tx connection is routed to a duplexer that separates receive and transmit signals The active connection is MSM selected by three control lines GPIO 72 GPIO 73 GPIO 74 and GPIO 75 These GPIOs are programmed to be ANT_SEL3 ANT_SEL2 ...

Page 78: ... custom CMOS integrated circuit provides the internal PAC function and interface circuitry Fabricated in InGaP GaAs the Heterojunction Bipolar Transistor HBT PA blocks support the GSM850 900 bands and DCS1800 PCS1900 bands Both PA blocks share common power supply pads to distribute current The InGaP GaAs die Silicon Si controller die and passive components are mounted on a multi layer laminate sub...

Page 79: ...FBAR filter for exceptional rejection at Cell PCS Band frequencies The ALM 2412 is useable down to 1V operation It achieves low noise figure high gain and linearity even at 1V making it suitable for use in critical low power GPS applications or during low battery situations The Module is housed in a cost effective small and thin package 3 3X2 1X1 1mm3 This part is MSL Class 3 and HBM ESD Level Cla...

Page 80: ...rposes LGE Internal Use Only 3 TECHNICAL BRIEF 3 19 GD880 Main Component 2 Main Components Main board Top Main board Bottom Sub board Top Sub board Bottom Logic USIM SD Socket 5M Camera Connector Connector RF GPS Logic Audio WiFi BT FM BB PMIC MEM Proximitor Sensor VGA Camera LCD Connector ...

Page 81: ...eference Description FL1002 WCDMA VIII Duplexer FL1003 WCDMA I Duplexer FL1006 WCDMA VIII TX SAW Filter FL1007 FEM FL1005 WCDMA I TX SAW Filter U1004 GSM PAM U1002 WCDMA Dual 1 8 PAM U1003 RTR6285 Transceiver FL1004 WCDMA I RX SAW Filter SW1002 RF Antenna connector FL1001 GPS SAW Filter U1001 GPS LNA U1003 U1002 FL1006 FL1005 FL1003 U1004 FL1002 FL1007 FL1004 SW1002 FL1001 U1001 ...

Page 82: ...ernal Use Only 3 TECHNICAL BRIEF Logic 2 Main Components Reference Description Reference Description U402 MUIC for 5Pin Micro USB J1 SIM Connector U403 Power MOSFET for Changing ANT600 WiFi BT Antenna U404 Over voltage Protection IC500 AUDIO_SUB_SYSTEM U401 LDO for USB U402 J1 ANT600 U403 U404 IC500 U401 ...

Page 83: ...CHNICAL BRIEF BB MEM WiFi BT 2 Main Components Ref Description Ref Description U200 MSM7227 U301 Memory MCP CN401 Battery Connector CN500 Main to Sub Connector U400 PMIC PM7540 J500 3 5phi Ear Jack CN400 Micro USB 5Pin Con U600 Wi Fi BT Module X200 TCXO 19 2MHz X600 TCXO 26MHz U200 U301 CN401 CN500 U400 J500 U600 X600 X200 ...

Page 84: ...2 Main Components Ref Description Ref Description S300 Micro SD Socket CN201 5M Camera Connector MIC400 MIC for Speaker Phone U101 LCD Charge pump U303 Motion sensor CN100 LCD Connector U100 RGB Converter U300 Proximitor Sensor U200 VGA Camera CN200 Sub to Main connector MIC401 MIC S300 CN201 MIC400 U101 U303 U100 CN100 U300 U200 CN200 MIC401 ...

Page 85: ...G Electronics Inc All right reserved Only for training and service purposes 5 Trouble Shooting RF 4 1 RF Component FL1001 FL1004 U1001 U1003 FL1005 FL1006 U1002 FL1002 FL1003 FL1007 U1004 SW1002 SW1002 86P 4 TROUBLE SHOOTING 4 TROUBLE SHOOTING ...

Page 86: ...ence Description U1001 GPS LNA FL1005 WCDMA 1 Tx SAW Filter U1002 WCDMA Dual 1 8 PAM FL1006 WCDMA 8 Tx SAW Filter U1003 RTR6285 FL1007 Front End Module U1004 GSM PAM X200 VCTCXO 19 2 MHz FL1001 GPS SAW Filter U600 Wifi BT FM Combo Module FL1002 WCDMA 8 Duplexer ANT600 Wifi BT Antenna FL1003 WCDMA 1 Duplexer SW1001 RF Antenna Connector FL1004 WCDMA 1 Rx Saw Filter SW1002 RF Mobile Switch U600 ANT60...

Page 87: ... All right reserved Only for training and service purposes 4 TROUBLE SHOOTING 5 Trouble Shooting RF GSM850 GSM900 DCS PCS s RX TX Signal PATH A GSM850 GSM900 DCS1800 PCS1900 RX PATH B GSM850 GSM900 DCS1800 PCS1900 TX PATH C COMMON TX RX PATH 4 2 Signal Path 88P ...

Page 88: ...onics Inc All right reserved Only for training and service purposes LGE Internal Use Only 4 TROUBLE SHOOTING 5 Trouble Shooting RF WCDMA BAND I and VIII RX Signal PATH D1 WCDMA 2100 RX PATH E1 W900 RX PATH F1 COMMON TX RX PATH 89P ...

Page 89: ...pyright 2010 LG Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING 5 Trouble Shooting RF WCDMA BAND I and VIII TX Signal PATH D1 WCDMA 2100 TX PATH E1 W900 TX PATH F1 COMMON TX RX PATH 90P ...

Page 90: ... 91 Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 4 TROUBLE SHOOTING 5 Trouble Shooting RF GPS Signal PATH F GPS Rx PATH 91P ...

Page 91: ...07 100p C209 33 R210 1n C212 TG 5010LH_19_2M_75A X200 19 2MHz 3 2 4 1 VCONT VCC GND OUT 10n C213 1n C214 VREG_TCXO_2 85V VREG_MSMA_2 6V C215 100p 0 1u C216 100K R213 0 1u C219 NC7SV00P5X_NL U202 3 2 4 1 5 VCC GND TCXO_RTR_19 2MHZ TCXO_PM_19 2MHZ RTR_TRK_LO_ADJ TCXO_EN USBH_SYSCLK 1 0T TCXO Circuit Clesed to TCXO TP2 TP3 TP1 5 Trouble Shooting RF 4 3 Checking TCXO Block The output frequency 19 2MHz...

Page 92: ... LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 4 TROUBLE SHOOTING 5 Trouble Shooting RF 4 4 Checking FEM Block ANT_SEL0 ANT_SEL1 ANT_SEL2 ANT_SEL3 VREG_SYNTH_2 75V 93P ...

Page 93: ...2 SW1001 G1 G2 ANT G3 15n L1002 1K R1023 C1019 0 1u C1043 33p VREG_SYNTH_2 75V FL1007 850 1900 2100MHz 6 5 4 3 7 11 9 22 21 20 13 24 12 23 10 15 8 14 1 17 16 2 19 18 PCS_RX1 PCS_RX2 ANT PCN_RX1 PCN_RX2 GND1 EGSM_RX1 GND2 EGSM_RX2 GND3 GND4 GSM850_RX1 GND5 GSM850_RX2 WCDMA_2100 WCDMA_850 WCDMA_1900 PCN_PCS_TX GSM850_EGSM_TX D D V 1 L R T C 2 L R T C 3 L R T C 4 L R T C SW1002 G4 G3 IN OUT G1 G2 68p...

Page 94: ... 95 Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 4 TROUBLE SHOOTING 5 Trouble Shooting RF Checking Switch Block Power Source ...

Page 95: ...ved Only for training and service purposes 4 TROUBLE SHOOTING 5 Trouble Shooting RF 4 5 Checking WCDMA Block 1 Check TCXO 19 2 MHz START 2 Check FEM Block Refer to 4 4 3 Check RF Tx Level 4 Check PAM Block Refer to 4 5 4 5 Check RF Level 6 Re download SW Cal Refer to 4 5 3 96P ...

Page 96: ...served Only for training and service purposes LGE Internal Use Only 4 TROUBLE SHOOTING 5 Trouble Shooting RF 4 5 1 Checking TCXO Block refer to 4 3 4 5 2 Checking FEM Block refer to 4 4 4 5 3 Checking RF TX Level Test Point TX Level TP2 TP4 TP3 TP1 97P ...

Page 97: ...4 7u 1 9 0 1 C 3 3p 22p C1112 GND 5 9 0 1 C 3 3p 1 5n L1018 W_PA_R0 W_2100_PA_ON W_PA_R1 W_900_PA_ON WCDMA_900_TX_OUT RX_WCDMA_2100 RX_WCDMA_900_M PDET_IN RX_WCDMA_900_P WCDMA_2100_TX_OUT SFSY0035101 W900 RX 925 960 MHz BAND1 2520 SAYP1G95AA0B00 SDMY0002801 Band 1 W900 TX 880 915 MHz BAND5 B9425 SFSY0036501 BAND 5 8 BAND2 B9640 SFSY0036601 BAND8 2520 B7953 SDMY0002801 SFSY0036501 BAND8 B9442 SFSY0...

Page 98: ...Bm No Check TP 3 Over 21 dBm No Check TP 4 Over 8 dBm No Check ANT_SEL 0 1 2 3 Check PAM Block Refer to4 5 4 Yes RF Tx Level is OK Yes Check TX Module Yes Check Duplexer Yes Check RTR 6285 RTR 6285 Maximum output Power 7 dBm RTR 6285 minimum output Power 80 dBm PAM ACPM 5281 Maximum input Power 8 dBm High Power Mode 5 dBm Low Power Mode WCDMA Band I Low High Low High WCDMA Band VIII Low Low High H...

Page 99: ...ng RF 4 5 4 Checking PAM Block PAM control signal W2100_PA_ON W900_PA_ON PAM Enable W_PA_RO PAM Gain Control W_PA_R1 must be LOW under 2 6V Use 2 stage gain PAM Enable must be HIGH over 2 6V PAM IN OUT Signal When PAM is under the operation of high power mode W_PA_R0 Low PAM OUT power must be over 21 dBm PAM IN power must be under 8 dBm TP2 TP3 TP1 100P ...

Page 100: ...1 8 7 9 6 10 5 11 4 12 3 13 2 14 1 RFIN_LOW RFOUT_LOW VMODE GND3 VBP VCC2 VCC1 GND2 VEN_LOW RFOUT_HI VEN_HI GND1 RFIN_HI CPL D N G P 4 7n L1024 C1056 68p C1035 22p L1022 12n 0 1 0 1 R 91 C1046 100p C1039 4 7p 100p C1066 6 1 0 1 R 91 2 7n L1023 FL1005 1950MHz 5 3 2 4 1 IN OUT G1 G2 G3 5 2 0 1 L 1 2n 82 R1020 VPWR FL1006 897 5MHz 5 3 2 4 1 IN OUT G1 G2 G3 68p C1028 C1101 4 7u 22p C1112 GND W_PA_R0 W...

Page 101: ... Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING 5 Trouble Shooting RF 4 5 5 Checking RF Rx Level Test Point RF Rx Level TP2 TP4 TP3 TP1 Bias 102P ...

Page 102: ...2 1K R1023 C1019 0 1u C1043 33p VREG_SYNTH_2 75V FL1007 850 1900 2100MHz 6 5 4 3 7 11 9 22 21 20 13 24 12 23 10 15 8 14 1 17 16 2 19 18 PCS_RX1 PCS_RX2 ANT PCN_RX1 PCN_RX2 GND1 EGSM_RX1 GND2 EGSM_RX2 GND3 GND4 GSM850_RX1 GND5 GSM850_RX2 WCDMA_2100 WCDMA_850 WCDMA_1900 PCN_PCS_TX GSM850_EGSM_TX D D V 1 L R T C 2 L R T C 3 L R T C 4 L R T C SW1002 G4 G3 IN OUT G1 G2 68p C1080 ANT_SEL3 ANT_SEL2 ANT_S...

Page 103: ...1 C 3 3p 5 9 0 1 C 3 3p 1 5n L1018 RX_WCDMA_2100 RX_WCDMA_900_M RX_WCDMA_900_P W900 RX 925 960 MHz BAND1 2520 SAYP1G95AA0B00 SDMY0002801 Band 1 W900 TX 880 915 MHz BAND8 2520 B7953 SDMY0002801 SDMY0001901 BAND2 2520 ACMD 7407 Band 8 BAND 1 2 W2100 TX 1920 1980 MHz TP2 1 8p C1010 VREG_SMPS_2 1V L1006 2 2n L1004 1 2n 1K R1009 C1048 100p L1007 3 6n C1064 0 1u 2140MHz FL1004 5 2 4 3 1 IN OUT _OUT G1 G...

Page 104: ... Trouble Shooting RF Check bias block soldering Set the Phone Rx is ON Check BIAS over 2 1 V Change the board No Check TP 1 Signal exist Check RF Switch M S Check TP 2 Signal exist Check FEM Module Refer 4 4 Check TP 3 Signal exist Check Duplexer Yes Yes Yes No No No Check TP 4 Signal exist Check RTR 6285 and Rx SAW filter Yes No Yes 105P ...

Page 105: ...ining and service purposes 4 TROUBLE SHOOTING 5 Trouble Shooting RF 4 6 Checking GSM Block 1 Check TCXO Block 2 Check FEM 3 Check RF TRX Level 4 Re download SW Cal Start 5 Trouble Shooting RF 4 6 Checking GSM Block 1 Check TCXO Block 2 Check FEM 3 Check RF TRX Level 4 Re download SW Cal Start ...

Page 106: ...ll right reserved Only for training and service purposes LGE Internal Use Only 4 TROUBLE SHOOTING 5 Trouble Shooting RF 4 6 1 Checking TCXO Block refer to 4 3 4 6 2 Checking FEM Block refer to 4 4 4 6 3 1 Checking RF TX Level TP2 TP3 TP1 107P ...

Page 107: ...00 2100MHz 6 5 4 3 7 11 9 22 21 20 13 24 12 23 10 15 8 14 1 17 16 2 19 18 PCS_RX1 PCS_RX2 ANT PCN_RX1 PCN_RX2 GND1 EGSM_RX1 GND2 EGSM_RX2 GND3 GND4 GSM850_RX1 GND5 GSM850_RX2 WCDMA_2100 WCDMA_850 WCDMA_1900 PCN_PCS_TX GSM850_EGSM_TX D D V 1 L R T C 2 L R T C 3 L R T C 4 L R T C SW1002 G4 G3 IN OUT G1 G2 68p C1080 ANT_SEL3 GSM_PA_RAMP GSM_PA_BAND GSM_PA_EN ANT_SEL2 ANT_SEL1 RX_PCS_P RX_PCS_M RX_DCS...

Page 108: ... 850 over 31 dBm If DCS PCS over 28 dBm Check soldering and components Start Check TCXO Block Refer to 4 3 No Check TP 2 3 If EGSM GSM 850 TP2 under6 dBm If DCS PCS TP3 under6 dBm No Change the board Yes EGSM DCS PCS GSM 850 Tx is OK Check other part Check FEM Block EDGE PAM Refer to 4 4 Yes Check RTR PAD No Problem No Still exist Problem For testing Max power output is needed 109P ...

Page 109: ... 110 LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING 5 Trouble Shooting RF 4 6 3 2 Checking RF RX Level TP2 TP1 110P ...

Page 110: ...13 2 2p C1051 L1011 15n L1008 15n 2 7n L1010 2 2p C1094 FL1007 850 1900 2100MHz 6 5 4 3 7 11 9 22 21 20 13 24 12 23 10 15 8 14 1 17 16 2 19 18 PCS_RX1 PCS_RX2 ANT PCN_RX1 PCN_RX2 GND1 EGSM_RX1 GND2 EGSM_RX2 GND3 GND4 GSM850_RX1 GND5 GSM850_RX2 WCDMA_2100 WCDMA_850 WCDMA_1900 PCN_PCS_TX GSM850_EGSM_TX D D V 1 L R T C 2 L R T C 3 L R T C 4 L R T C SW1002 G4 G3 IN OUT G1 G2 68p C1080 RX_PCS_P RX_PCS_...

Page 111: ... All right reserved Only for training and service purposes 4 TROUBLE SHOOTING 5 Trouble Shooting RF Set the Phone Rx is ON Check TP 1 Signal exist Check RF Switch Mobile Switch Yes No Check TP 2 Signal exist Check FEM Block Refer 4 4 No Yes Change the Board 112P ...

Page 112: ...ng RF 4 7 GPS WIFI BT FM Radio RF components RF component GPS Reference Description ANT1001 ANTENNA PAD ANT1002 GND PAD FL1001 GPS SAW FILTER U1001 GPS LNA FL1001 U1001 ANT1001 ANT1002 113P 5 Trouble Shooti 4 7 GPS WIFI BT FM Radio RF components RF component GPS Reference Description ANT1001 ANTENNA PAD ANT1002 GND PAD FL1001 GPS SAW FILTER U1001 GPS LNA ...

Page 113: ... LG Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING 5 Trouble Shooting RF RF component WiFi BT FM Radio Reference Description ANT600 ANTENNA chip Antenna U600 Wifi BT FM Combo Chip U600 ANT600 114P ...

Page 114: ...ctronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 4 TROUBLE SHOOTING 5 Trouble Shooting RF 4 8 GPS WIFI BT FM Radio SIGNAL PATH RF component GPS WIFI BT SIGNAL PATH FM Radio SIGNAL PATH ...

Page 115: ...dio TROUBLE SHOOTING 4 9 1 A GPS Block Schematic of A GPS Block TP2 TP1 116P ANT1001 ANTPAD_GD880 FEED 3 9n L1005 C1015 DNI U1001 3 2 5 4 1 N I _ F R FIL_OUT VDD S_D GND 6 8n L1001 C1004 DNI 33p C1034 FL1001 1575 42MHz 5 3 2 4 1 OUT IN G1 G2 G3 10K R1014 VREG_RF_2 7V 100p C1103 C1106 DNI DNI C1108 C1109 3 9p 12 R1026 ANT1002 ANTPAD_GD880 FEED GPS_LNA_EN GPS_IN SMZY0016501 TP2 TP1 ...

Page 116: ...rved Only for training and service purposes LGE Internal Use Only 4 TROUBLE SHOOTING 5 Trouble Shooting RF Set the Phone GPS is ON Change the board Check TP1 About2 7V Check power LRC filter soldering Check TP2 About2 6V Check SW and NV item Yes Yes No No ...

Page 117: ... 118 LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING 5 Trouble Shooting RF 4 9 2 WIFI BT FM Radio Block ...

Page 118: ... L V 2 P 1 _ N I V T U O _ 2 O D L N L A D S _ T B L C S _ T B 1 O I D U A 2 O I D U A N _ T S R _ T B 7 D N G L601 4 7n p 5 1 4 2 6 C C604 0 5p ANT600 SDBTPTR3015 2 3 1 4 DUMMY3 FEED DUMMY2 DUMMY1 600 FB600 1u C621 C620 8p VREG_MSMP_2 6V C606 820p DNI C603 C605 100p 1n C622 1u C601 VDD_TCXO 2 2uF C619 VPWR C600 1u VDD_TCXO R605 100K 26MHz X600 TG 5010LH 87N 4 2 3 1 NC OUT GND VCC U601 5 3 2 4 1 V...

Page 119: ...ing and service purposes 4 TROUBLE SHOOTING 5 Trouble Shooting RF Test Point DescQription Test Point Net Name Description TP1 VPWR Power for BT Wifi BB core and Wifi Power Amp TP2 VREG_MSMP_2 6V Power for BT Power Amp 2 6V TP3 VREG_MSMP_2 6V Power for host interface 2 6V Yes Yes TP2 TP3 TP1 120P ...

Page 120: ...in Clock Part Test Point Description Test Point Net Name Description TP1 CLK_REG On Off Control external clock source 0 TCXO off 1 TCXO on TP2 CLK_IN TCXO output clock 26 MHz TP2 TP1 121P 1n C622 1u C601 VDD_TCXO 2 2uF C619 VPWR C600 1u VDD_TCXO R605 100K 26MHz X600 TG 5010LH 87N 4 2 3 1 NC OUT GND VCC U601 5 3 2 4 1 VOUT VDD GND CE D N G P CLK_REQ CLK_IN LDO for TCXO 26MHz TCXO TP1 TP2 ...

Page 121: ... booting and PS_HOLD D400 go to High Battery voltage higher than 3 70V OCV TP1 or TP6 high to low Change or charging the Battery 1 Check correctly connecting Sub PCB CN200 connector and NO YES NO TP1 or TP6 high to low when key press TP2 TP3 TP4 TP7 TP8 TP10 power up Sub_PCB CN200 connector and main B d connector CN500 2 Check correctly working power key Change the Main board YES NO Is clock ok TP...

Page 122: ... 123 Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 4 TROUBLE SHOOTING 4 Troubleshooting BB TP1 go to low 470 R306 D302 KB300 PM_ON_SW ...

Page 123: ..._N PS_HOLD R409 121K KDS114E D400 22p C435 VREG_TCXO_2 85V 51 R406 C431 1n 2 2u C430 22p C429 2 2u C428 1n C427 2 2u C425 VREG_MSMC1_1 35V VREG_MMC_3 0V 200K R404 C424 1n VREG_RUIM_3 0V C420 4 7u C419 2 2u 2 2u C418 VREG_MSMA_2 6V 10u C416 C415 2 2u VREG_MSMC2_1 25V VREG_SMPS_2 1V C412 1n C411 1u VREG_MSMP_2 6V 4 7u C410 4 7u C408 2 2u C407 VREG_MOTOR_3 0V C405 4 7u C402 33p VREG_AUX2_2 9V VREG_RG...

Page 124: ... 125 Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 4 TROUBLE SHOOTING 4 Troubleshooting BB PM7540 Power sequence ...

Page 125: ...ging current Path Check the battery 4 Troubleshooting BB Charging Current Flow Main Battery TA 5 1V U404 MAX14528 9 6 5 3 4 8 2 7 1 IN1 OUT1 IN2 OUT2 IC1 OVLO IC2 D N G D N G P VCHG_VBUS 1uF NFM21PC105B1A3 FL400 4 3 2 1 IN OUT G1 G2 D401 22p C444 HSMU 5SB 24DR2 CN400 15 13 11 9 7 5 4 3 2 1 14 12 10 8 6 C457 1u MAX_DP MAX_DM USB_ID uUSB 5pin Close by uUSB CONN Close by uUSB CONN OVP change circuit ...

Page 126: ...leshooting BB Check the pin and battery Connect terminals of I O Start connector Connection OK Change I O connector NO Is TP1 voltage 4 8V or 5 0V Change TA or u USB Cable Yes NO Is it charging properly After turning on TP5 END Yes Yes NO Check TP1 SMT status by X ray Exchange TP1 or Change the Main board And Retest Charger Troubleshooting Flow ...

Page 127: ...5 D N G 6 D N G 7 D N G 8 D N G 9 D N G 0 1 D N G 1 1 D N G 2 1 D N G 3 1 D N G 4 1 D N G 5 1 D N G 6 1 D N G 7 1 D N G 8 1 D N G 9 1 D N G 0 2 D N G 1 2 D N G 2 2 D N G 3 2 D N G 4 2 D N G 5 2 D N G R409 121K KDS114E D400 C437 0 1u 1n C436 22p C435 VREG_TCXO_2 85V 0 1u C434 C433 0 1u 10K R407 0 1u C432 51 R406 C431 1n 2 2u C430 22p C429 2 2u C428 1n C427 C426 33p 2 2u C425 VBATT VREG_MSMC1_1 35V ...

Page 128: ... 129 Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 4 TROUBLE SHOOTING 4 Troubleshooting BB TP2 TP3 TP1 ...

Page 129: ...ooting BB USB Initial sequence of GD880 is USB connected to GD880 Æ VCHG_VBUS FL400 go to 5V Æ VERG_MSME_1 8V is about 1 8V Æ USB_CLK is OK R210 USB work 4 12 USB trouble Start VCHG_VBUS is about to 5V TP4 CLK is OK Change the Main board Check TP2 Check TP3 NO YES YES NO Cable is insert YES Cable insert NO YES NO TP5 TP6 signal is out Check TP1 130 P ...

Page 130: ...75A X200 19 2MHz 3 2 4 1 VCONT VCC GND OUT 10n C213 1n C214 VREG_TCXO_2 85V VREG_MSMA_2 6V C215 100p 0 1u C216 100K R213 0 1u C219 NC7SV00P5X_NL U202 3 2 4 1 5 VCC GND TCXO_RTR_19 2MHZ TCXO_PM_19 2MHZ RTR_TRK_LO_ADJ TCXO_EN USBH_SYSCLK 1 0T TCXO Circuit Clesed to TCXO K 7 4 9 2 4 R VREG_MSMP_2 6V 8 2 4 R K 0 1 C451 1u 0 1u C450 K 7 4 7 2 4 R 0 1u C449 VCHG_VBUS 2 2K R426 VPWR U402 MAX14526EEWP TCC...

Page 131: ... 132 LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING 4 Trouble Shooting BB TP1 TP2 TP3 TP4 TP5 TP6 132 P ...

Page 132: ...The sine wave appear at TP1 The sine wave appear at TP2 Check the 80pin Conn Or Sub PCB NO 133 P Voice Receiver path as below MSM7227 RCV_N RCV_P Æ 80PIN CONN Æ RCV pad Start Change the Main board NO Connect the phone to network Equipment and setup call Setup 1KHz tone out YES Can you hear the tone YES END YES Change the Receiver Hear the tone to the receiver NO END 4 Trouble Shooting BB 4 13 Audi...

Page 133: ... 134 LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING 4 Trouble Shooting BB TP2 TP1 134 P ...

Page 134: ...1KHz tone out And insert head_Set YES Can you hear the tone or sound NO YES END YES Check the TP5 or change SUB PCB The sine wave appear at TP2 TP3 Check the TP4 NO YES Or Play Multimedia Contents And insert head_set Or Some Sound Signal 135 P 1u 1 2 5 C 22n C509 22n C510 220n C508 220n C507 IC500 D4 C3 B3 B2 C2 C1 D2 D1 A5 A4 5 C 1 B 3 A S S V D D V D D V P C1N C1P INA2 INA1 INB2 INB1 BIAS SDA SC...

Page 135: ... 136 LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING 4 Trouble Shooting BB TP1 TP2 TP3 TP4 TP5 136 P ...

Page 136: ...one out Set phone with speaker phone mode or Play the multimedia contents YES Check TP1 80pin Con Or Change SUB PCB NO YES Can you hear the tone Change the Speaker Module NO YES END The sine wave appear at pads of speaker 4 Trouble Shooting BB 4 13 3 Loud speaker path voice speaker phone Multimedia play 137 P 1u 1 2 5 C 22n C509 22n C510 220n C508 220n C507 IC500 D4 C3 B3 B2 C2 C1 D2 D1 A5 A4 5 C ...

Page 137: ... 138 LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING 4 Trouble Shooting BB TP2 TP1 138P ...

Page 138: ...9 VPWR 0 1u C400 U400 9 4 6 3 5 2 7 1 8 10 1B0 1A 1B1 S1 2B0 2A 2B1 S2 GND VCC MIC_SEL MIC_P MIC_1P MIC_2P MIC1_VGND MIC2_VGND MIC_VGND 8 H 6 F 5 F 0 1 J 0 1 H 9 H 0 1 C 0 1 B 9 C 9 B 8 F 8 E 7 F 7 E 7 C 7 B 6 C 5 C 6 B 5 B P I _ R _ E N I L N I _ R _ E N I L P I _ L _ E N I L N I _ L _ E N I L P 1 C I M N 1 C I M P 2 C I M N 2 C I M P I X U A N I X U A P O _ E N I L N O _ E N I L P O _ 1 R A E N ...

Page 139: ... 140 LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING 4 Trouble Shooting BB TP2 TP1 TP3 TP4 140P ...

Page 140: ...9 SMD TOP VPWR 0 1u C400 U400 9 4 6 3 5 2 7 1 8 10 1B0 1A 1B1 S1 2B0 2A 2B1 S2 GND VCC MIC_SEL MIC_P MIC_1P MIC_2P MIC1_VGND MIC2_VGND MIC_VGND 8 H 6 F 5 F 0 1 J 0 1 H 9 H 0 1 C 0 1 B 9 C 9 B 8 F 8 E 7 F 7 E 7 C 7 B 6 C 5 C 6 B 5 B P I _ R _ E N I L N I _ R _ E N I L P I _ L _ E N I L N I _ L _ E N I L P 1 C I M N 1 C I M P 2 C I M N 2 C I M P I X U A N I X U A P O _ E N I L N O _ E N I L P O _ 1 ...

Page 141: ... 142 LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING 4 Trouble Shooting BB TP4 TP2 TP1 TP3 142P ...

Page 142: ... 5pi Ear jack Or Change Ear mic SET YES YES make some sound or voice to MIC Work well END YES Can you scoping some sound signal at TP3 Check TP3 Or Change the Main b d NO NO YES Start 143P 1 R 2 2K U500 5 3 2 4 1 VOUT VDD GND CE D N G P 1800 FB504 2 2u 4 0 5 C VREG_MSMP_2 6V 2 R 1K 4 7u C503 EAR_SENSE HOOK_ADC HOOK_ADC EAR_MICP EAR_MICP HS_MIC_BIAS_EN 8 F 8 E 7 F 7 E 7 C 7 B 6 C 5 C 6 B 5 B P I _ ...

Page 143: ... 144 LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING 4 Trouble Shooting BB TP1 TP2 TP3 TP4 144P ...

Page 144: ...generated by MSM7227 4 Trouble Shooting BB TP1 TP2 TP4 Check Camera is OK Check the camera conn and reconnect the camera Camera is OK Change the camera Yes NO NO Yes Change the Sub board End Yes End NO START 4 14 5M Camera trouble MSM7227 output signal check TP3 Yes NO Check master clock and pixel clock Yes Check the TP5 Yes No Change the Filter FL200 201 202 NO 145P ...

Page 145: ...UT_A3 INOUT_B3 INOUT_A4 INOUT_B4 1 G 2 G 7 5pF FL201 0 1 5 6 4 7 3 8 2 9 1 INOUT_A1 INOUT_B1 INOUT_A2 INOUT_B2 INOUT_A3 INOUT_B3 INOUT_A4 INOUT_B4 1 G 2 G 7 5pF FL202 0 1 5 6 4 7 3 8 2 9 1 INOUT_A1 INOUT_B1 INOUT_A2 INOUT_B2 INOUT_A3 INOUT_B3 INOUT_A4 INOUT_B4 1 G 2 G CAM_PCLK CAM_HSYNC CAM_DATA 7 CAM_DATA 6 CAM_DATA 5 CAM_DATA 4 CAM_DATA 3 CAM_DATA 2 CAM_DATA 1 CAM_DATA 0 S_CAM_DATA 0 S_CAM_DATA ...

Page 146: ... 147 Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 4 TROUBLE SHOOTING 4 Trouble Shooting BB TP1 TP2 TP3 TP4 TP5 147P ...

Page 147: ...poses 4 TROUBLE SHOOTING VGA camera control signals are generated by MSM7227 4 Trouble Shooting BB TP2 TP3 Check Camera is OK Camera is OK Change the camera Yes NO NO Yes Change the Sub PCB End Yes End NO START 4 15 VGA Camera trouble MSM7227 output signal check TP1 Yes NO Check master clock and pixel clock Yes NO ...

Page 148: ...B5 B2 B1 B3 D2 E5 D1 B6 A3 A2 IOVDD DCLK DVDD HSYNC AVDD VSYNC DATA0 DATA1 DATA2 EXTCLK DATA3 PWRDWN DATA4 RESET DATA5 SDA DATA6 SCL DATA7 GND1 GND2 VDD15_1 GND3 VDD15_2 GND4 D N G P 0 1u C209 CAM_VDD_2 8V CAM_VDD_1 8V D200 CAM_PCLK CAM_VSYNC CAM_HSYNC CAM_MCLK VGA_CAM_PWDN VGA_CAM_RESET_N CAM_I2C_SCL CAM_I2C_SDA S_VGA_CAM_DATA 0 S_VGA_CAM_DATA 1 S_VGA_CAM_DATA 2 S_VGA_CAM_DATA 3 S_VGA_CAM_DATA 4 ...

Page 149: ... connector Î RGB converter Î 60 pin LCD connector Î LCD Module 4 Trouble Shooting BB 4 16 Main LCD trouble The LCD works START Press END key to turn the power on Is the circuit powered Follow the Power ON trouble shooting LCD display OK Check TP1 TP2 TP3 No Yes Yes No Disconnect and reconnect 80 pin 60 pin B to B connector Change the SUB BD No End Yes Display OK Yes No No Change the LCD module No ...

Page 150: ...PDAT12 GPIOH13 FPDAT13 GPIOH14 FPDAT14 GPIOH15 FPDAT15 FPDAT16 GPIOH16_ADS FPDAT17 GPIOH17_RD_ GPIOP0_FPDAT18 GPIOH18_WR_ GPIOP1_FPDAT19 GPIOH19_CS GPIOP2_FPDAT20 GPIOP3_FPDAT21 MDATA0P GPIOP4_FPDAT22 MDATA0M GPIOP5_FPDAT23 MSTBP GPIOP12 MSTBM GPIOP13 GPIOP14 INT GPIOP15 RESET_ TE FPFRAME CNF FPLINE TESTEN FPSHIFT FPDRDY PLP PLPAV FPCS_1 MDREF FPCS_2 FPSCK CLKI FPAO OSCI FPSO OSCO NC 1 S S V 2 S S...

Page 151: ...CH_VDD_2 8V 0 1u C114 VREG_MSMP_2 6V 1 2 1 1 R DNI 3 1 1 R TOUCH_I2C_SDA TOUCH_I2C_SCL TOUCH_ACK LCD_RESET_N LCD_MAKER_ID MLED_OUT MLED1 MLED3 MLED5 LCD_PWM MLED2 MLED4 MLED6 FLT_LCD_R 7 FLT_LCD_R 6 FLT_LCD_R 4 FLT_LCD_R 3 FLT_LCD_R 2 FLT_LCD_R 1 FLT_LCD_R 0 FLT_LCD_G 7 FLT_LCD_G 6 FLT_LCD_G 2 FLT_LCD_G 0 FLT_LCD_B 7 FLT_LCD_B 6 FLT_LCD_B 5 FLT_LCD_B 4 FLT_LCD_B 3 FLT_LCD_B 2 FLT_LCD_B 1 FLT_LCD_B...

Page 152: ...OUBLE SHOOTING 4 17 SIM Detect Troubleshooting Start Work well TP1 TP2 TP3 TP4 is run Change the Sub board End Check J1 Yes No YES NO Re insert the SIM card Change SIM card Work well End Yes No 4 Troubleshooting BB USIM Initial sequence of GD880 is SIM_CLK SIM_RST SIM_IO triggered Æ VRUIM_3 0V go to 2 8V Æ SIM IF work 153P ...

Page 153: ...ice purposes 4 TROUBLE SHOOTING 4 Troubleshooting BB TP1 TP2 TP3 TP4 154P D504 4 3 5 2 6 1 J1 9 8 10 7 6 3 5 2 4 1 VCC GND1 RST VPP CLK IO GND2 GND5 GND3 GND4 10p C522 15K 2 0 5 R 1u C500 VREG_RUIM_3 0V VREG_RUIM_3 0V 22p C520 22p C519 USIM_DATA USIM_DATA USIM_RST USIM_RST USIM_CLK USIM_CLK TP4 TP3 TP2 TP1 ...

Page 154: ...olume down Also Camera Key is composed of Focus and Shutter Start Check Sub PCB NO Yes Key press Check R211 and R212 NO TP1 or TP2 is High 4 Troubleshooting BB TP3 or TP4 is High Yes Check an U200 or Change the Main board And Retest 155P 24 23 22 21 20 19 18 17 16 15 14 13 470 R211 470 R212 470 R213 470 R214 56K 5 1 2 R 56K 6 1 2 R VREG_MSMP_2 6V LCD_CVT_INT LCD_CVT_RESET_N KEY_ROW 0 KEY_ROW 1 KEY...

Page 155: ... 156 LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING 4 Troubleshooting BB TP1 TP2 TP3 TP4 156P ...

Page 156: ...00_LMOTOR_N output of U302 Start Work well TP3 is 3V TP4 is high TP5 is working End Check an U302 SMT status by X ray Exchange it YES No NO YES Reboot Check SW TP1 TP2 is OK Check motor FPCB connection YES No TP1 TP2 TP3 TP4 TP5 157P VB300 2 1 100n L300 100n L301 VREG_MOTOR_3 0V 1u C307 3 9n C308 3 1 3 R 510K 10K 4 1 3 R U302 9 5 4 6 3 7 2 8 1 EN V1 SIN VSS TYPE VCC OCT V2 D N G P LIN_MOTOR_EN LIN...

Page 157: ... Î Phone number click Î Call connected Î Object moved at the sensor Î Control the screen s on off operation automatically Send Key click call connected Object moved at the Proximity Sensor LCD on off No Start End Yes NO Change the Main Board 4 20 Proximity Sensor on off trouble YES Work well TP1 output check NO Change the sensor U300 TP2 TP3 TP4 check NO Change the Main Board YES YES 158P Change t...

Page 158: ...0 VCC VREG_SENSOR_2 6V C304 R310 PROXI_OUT U300 PROXI_SDA SCL data CLK pulse R308 R309 TP1 TP2 TP3 TP4 159P 0 1u C301 2 2u C302 4 7K R308 4 7K R309 VREG_SENSOR_2 6V VREG_SENSOR_2 6V R310 4 7 10u C304 U300 5 4 6 3 7 2 8 1 A D E L L C S C D E L A D S C C V O I V T U O V D N G 10 R311 VREG_SENSOR_2 6V VREG_SENSOR_2 6V 1u C305 PROXI_I2C_SCL PROXI_I2C_SDA PROXI_OUT TP1 TP2 TP4 TP3 ...

Page 159: ...on On Î Object moved at the Luminance sensor Î automatically controls brightness of the display backlight Very slowly 4 21 Luminance Sensor on off trouble Sensor ALC function On Object moved at the Luminance sensor LCD backlight change slowly No Start End Yes NO Change the Sub Board YES Work well TP5 TP6 TP7 TP8 check NO Change the Luminance sensor U301 TP1 TP2 TP3 TP4 check NO Change the Main Boa...

Page 160: ...N 2 C P 2 C D N G P C VBATCP VOUT VBAT LED1 LED2 VIO LED3 RESETB LED4 SCL LED5 SDA LED6 WPWMIN LEDGND SBIAS SSENS LDO1O SGND LDO2O GC2 LDO3O GC1 LDO4O 2 T 4 T 1 T 3 T LED7 LED8 2 2u C115 CAM_AF_2 8V 2 2u C116 TOUCH_VDD_2 8V 4 7K 7 0 1 R 4 7K 0 1 1 R VREG_MSMP_2 6V TP101 1u C119 1u C120 VPWR 1u 1 2 1 C CAM_VDD_1 8V CAM_VDD_2 8V 2 2u C122 2 2u C123 1u C124 VREG_MSMP_2 6V 10u 5 2 1 C GAIN1 GAIN2 LCD_...

Page 161: ...ed as below Accelerometer Sensor function On Î Tilt the phone 90ȋ Î The screen is had rotated automatically 4 22 Motion Sensor on off trouble Accelerometer Sensor function On Tilt the phone The screen is rotated No Start End Yes NO Change the Sub Board YES Work well TP1 TP2 check NO Change the Motion sensor U303 TP3 check NO Change the Sub Board YES YES 162P Change The Main Board ...

Page 162: ..._SDA SCL data CLK pulse R315 R316 TP1 TP2 TP3 163P U303 2 1 1 1 6 5 7 4 8 3 9 2 10 1 NC1 NC2 VDD VDDIO GND SDI INT SDO CSB SCK 1 T O N 2 T O N 0 1u C300 VREG_MSMP_2 6V TP300 1u C309 4 7K 5 1 3 R 4 7K 6 1 3 R VREG_MSMP_2 6V MOTION_INT MOTION_I2C_SCL MOTION_I2C_SDA Motion Sensor TP3 TP2 TP1 4 Trouble Shooting BB 1 Measurement Sub board VREG_MSMP_2 6V 2 6V C309 MOTION_INT High enable TP300 MOTION_I2C...

Page 163: ... 164 LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes 5 DOWNLOAD 5 DOWNLOAD ...

Page 164: ... 165 Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 5 DOWNLOAD ...

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Page 172: ... 173 Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 5 DOWNLOAD ...

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Page 176: ...2C EBI2 ADDR TX WCDMA 900 2100 1900 TX DAC EBI1 DATA EBI1 ADDR Duplexer WCDM A PAM DDRSDRAM 2Gbit Flash 4Gbit Charge Pump BD6084 8CH LCD_PWM SDIO2 Ambient Light Sensor RF Block 8CH ALC SDIO2 Speaker Line O P N HPH_R L EAR1OP N Receiver Micro SD UART3 UIM2 UART2 DM I2C Touch Sensor Proximity Sensor Speaker AMP E h R L TCXO_RTR_19 2MHz 3 5ĭ Earphone PM_SSBI USB I F MIC1P UART2 UIM I2C Sensor 3 Axis ...

Page 177: ..._N VPWR MCP SDRAM 1 8V MAX 180mA NAND 1 8V MAX 30mA RTR6285 GSM PAM WCDMA PAM VDDA 2 7V MAX 93mA VDDM 2 6V MAX 10mA VDDA 2 1V MAX 70mA VREG_RF_2 7V 150mA VREG_SMPS_2 1V 300mA VREG_RFRX1 VSW_PA VREG_GP2 GPS LNA VREG_LCD_2 8V 150mA LCD module VIO 1 8V WCDMA PAM VREG_SYNT VREG_MSME2 VREG_GP1 Motion Sensor 2 7V MAX mA VREG_GP6 VREG_SENSOR_2 6V 300mA Proximity sensor 2 7V 20mA VREG_SYNTH_2 75V VREG_LCD...

Page 178: ...6084GUL POWER Block VREG_MSMP_2 6V BD6084GUL CAM_VDD_2 8V CAM_VDD_1 8V LDO2 150mA LDO1 150mA LDO3 150mA 5M CAMERA VIO CAM_AF_2 8V V_PWR LDO4 150mA VBAT VGA CAMERA Touch IC TOUCH_VDD_3 3V MLED 7ea MLEDOUT 450mA LCD_BACKLIGHT_4 8V WIFI BT FM MODULE VBAT VDDIO VDDIO_SD VREG_MSMP_2 6V LDO 2 8V 26MHz TCXO for WIFI BT FM MUIC Audio Sub System ...

Page 179: ...hnical Brief E FM Radio interface y FM_ANT FM RF input y SLEEP CLK External reference oscillator input 32 768KHz y FM_AUDIO_R Right audio line output digital input data y FM_AUDIO_L Left audio line output digital frame synchronization Figure Block Diagram of WiFi Interface Figure Block Diagram of BT Interface 6 BLOCK DIAGRAM ...

Page 180: ...nly 6 BLOCK DIAGRAM E FM Radio interface y FM_ANT FM RF input y SLEEP CLK External reference oscillator input 32 768KHz y FM_AUDIO_R Right audio line output digital input data y FM_AUDIO_L Left audio line output digital frame synchronization Figure Block Diagram of WiFi Interface Figure Block Diagram of BT Interface ...

Page 181: ...SM7227 transceiver WCDMA PAM DPX 4 4 4 W900_TX_OUT RFOUT_LOW 4 PDET IN RX_WCDMA_900 RX_WCDMA_2100 GPS_IN RTR_RX_I Q RTR_DRX_I Q I Q_IP M_CH0 I Q_IP M_CH1 PRX_I Q P N DRX_I Q P N GPS_IN WPRXSE2 WPRXLB LB_RF_OUT2 GSM_IN RFin_Low RFOUT_LOW WCDMA_850 MSM7227 DPX W900 4 RTR_SSBI W2100_TX_OUT W2100_PA_ON W900_PA_ON W_PA_R0 PDET_IN RX_WCDMA_900 GPIO59 PA_ON0 GPIO_22 PA_RANGE0 SBDT TCXO PDET_IN Vmode Ven_...

Page 182: ... 183 Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 6 BLOCK DIAGRAM 3 Technical Brief Figure Block Diagram of RF Interface ...

Page 183: ... 184 LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes ...

Page 184: ... 6 0 1 C p 0 0 1 6 1 0 1 R 91 1 2n L1003 18n L1019 0 7 0 1 C u 1 0 1 7 0 1 C u 1 0 7 1 0 1 R 180 C1073 10u VREG_RF_2 7V R1018 2 2K L1008 15n 100p C1075 C1076 0 1u 2 7n L1023 2 7n L1010 2140MHz FL1004 5 2 4 3 1 IN OUT _OUT G1 G3 FL1005 1950MHz 5 3 2 4 1 IN OUT G1 G2 G3 C1081 0 1u 100p C1082 5 2 0 1 L 1 2n 82 R1020 C1084 39p VPWR 5 8 0 1 C u 1 0 1 8p C1086 C1090 100p L1014 10n C1092 0 1u VPWR C1093 ...

Page 185: ... GPIO_43 GPIO_44 GPIO_45 GPIO_46 GPIO_47 GPIO_48 GPIO_49 GPIO_50 GPIO_51 GPIO_52 GPIO_53 GPIO_54 GPIO_55 GPIO_56 GPIO_57 GPIO_58 GPIO_59 GPIO_60 GPIO_61 GPIO_62 GPIO_63 GPIO_64 GPIO_65 GPIO_66 GPIO_67 GPIO_68 GPIO_69 GPIO_70 GPIO_71 GPIO_72_GRFC_9 GPIO_73_GRFC_8 GPIO_74_GRFC_7 GPIO_75_GRFC_6 GPIO_76_GRFC_5 GPIO_77_GRFC_4 GPIO_78_GRFC_3 GPIO_79_GRFC_2 GPIO_80_GRFC_1 GPIO_81_GRFC_0 GPIO_82 GPIO_83 G...

Page 186: ...P1_4 VDD_P1_5 VDD_P1_6 VDD_P2_1 VDD_P2_2 VDD_P2_3 VDD_P3_1 VDD_P3_2 VDD_P3_3 VDD_P3_4 VDD_P3_5 VDD_P3_6 VDD_P4_1 VDD_P4_2 VDD_P7_1 VDD_P7_2 V 3 3 _ B S U V 6 2 _ A M S M _ G E R V 10n C300 V 9 2 _ 2 X U A _ G E R V V 8 1 _ E M S M _ G E R V VREG_MSMP_2 6V VREG_MSME_1 8V VREG_MSMC2_1 25V VREG_MSMC1_1 35V VREG_MSMA_2 6V 4 7u C342 0 1u C301 USB_3 3V C303 1n C304 1n 1n C305 C306 1n C307 1n 1n C310 1n ...

Page 187: ...IN SPKR_OUT_R_P XTAL_OUT SPKR_OUT_R_M SLEEP_CLK VIDEO_IN AMUX_OUT VIDEO_OUT VIB_DRV_N KPD_PWR_N KPD_DRV_N PON_RESET_N LCD_DRV_N PS_HOLD FLSH_DRV_N 1 D N G 2 D N G 3 D N G 4 D N G 5 D N G 6 D N G 7 D N G 8 D N G 9 D N G 0 1 D N G 1 1 D N G 2 1 D N G 3 1 D N G 4 1 D N G 5 1 D N G 6 1 D N G 7 1 D N G 8 1 D N G 9 1 D N G 0 2 D N G 1 2 D N G 2 2 D N G 3 2 D N G 4 2 D N G 5 2 D N G R409 121K KDS114E D40...

Page 188: ...4 3 2 1 4 7u C503 C505 1u 10u C506 1u 2 0 5 C 22n C509 22n C510 220n C508 220n C507 VPWR IC500 4 C 3 D B4 D4 C3 B3 B5 B2 D5 C2 C1 D2 D1 A2 A1 A5 A4 5 C 1 B 3 A S S V D D V D D V P C1N C1P HPR HPL INA2 INA1 INB2 INB1 OUT BIAS OUT SDA SCL RXIN RXIN D N G D N G P 1u 1 0 5 C MIC_VGND FM_ANT EAR_SENSE AUDIO_I2C_SDA LINE_ON LINE_OP RCV_P RCV_N HPH_L HPH_R HOOK_ADC HOOK_ADC EAR_MICP EAR_MICP AUDIO_I2C_SC...

Page 189: ...D U A 2 O I D U A N _ T S R _ T B 7 D N G L601 4 7n p 5 1 4 2 6 C C604 0 5p ANT600 SDBTPTR3015 2 3 1 4 DUMMY3 FEED DUMMY2 DUMMY1 600 FB600 1u C621 C620 8p VREG_MSMP_2 6V C606 820p DNI C603 C605 100p 1n C622 L K J I H G F E D C B A 12 11 10 9 8 7 6 5 4 3 2 1 LGE Internal Use Only L K J I H G F E D C B A 12 11 10 9 8 7 6 5 4 3 2 1 1u C601 VDD_TCXO 2 2uF C619 VPWR C600 1u VDD_TCXO R605 100K 26MHz X60...

Page 190: ...3 GPIOP14 INT GPIOP15 RESET_ TE FPFRAME CNF FPLINE TESTEN FPSHIFT FPDRDY PLP PLPAV FPCS_1 MDREF FPCS_2 FPSCK CLKI FPAO OSCI FPSO OSCO NC 1 S S V 2 S S V 3 S S V 4 S S V 5 S S V 6 S S V 7 S S V 1 S S V M A R D 2 S S V M A R D S S V D M S S V L L P 3 3K R103 100 4 0 1 R 2 2u C105 2 2u C106 2 2u C107 2 2u C108 2 2u C109 U102 4 3 5 2 6 1 VCC1 VCC A NC GND Y VREG_RGB_1 5V DNI C110 4 7n C111 1 R105 VREG...

Page 191: ..._2 8V CAM_VDD_1 8V D200 V 6 2 _ R O S N E S _ G E R V RCV_P RCV_N VBACK_UP MIC_BIAS LCD_CVT_INT LCD_CVT_RESET_N TOUCH_I2C_SDA TOUCH_I2C_SCL KEY_ROW 0 KEY_ROW 1 KEY_COL 0 KEY_COL 1 MOTION_INT LCD_SUBPM_RESET_N LCD_SUBPM_I2C_SCL LCD_SUBPM_I2C_SDA MOTION_I2C_SCL MOTION_I2C_SDA PROXI_I2C_SCL PROXI_I2C_SDA PROXI_OUT LIN_MOTOR_EN LIN_MOTOR_PWM MICROSD_CLK MICROSD_CMD SPK_P SPK_N MIC_SEL MIC_P MICROSD_DE...

Page 192: ...300 R310 4 7 10u C304 U300 5 4 6 3 7 2 8 1 A D E L L C S C D E L A D S C C V O I V T U O V D N G TP300 1u C309 10 R311 VREG_SENSOR_2 6V VREG_SENSOR_2 6V 1u C305 10K 2 1 3 R 1u C306 U301 6 4 3 2 5 1 VCC IOUT GND1 GC1 GC2 2 D N G KB301 KB302 100n L300 100n L301 VREG_MOTOR_3 0V 1u C307 3 9n C308 3 1 3 R 510K 10K 4 1 3 R U302 9 5 4 6 3 7 2 8 1 EN V1 SIN VSS TYPE VCC OCT V2 D N G P 4 7K 5 1 3 R 4 7K 6 ...

Page 193: ... 1 SW400 G1 ANT G2 ANT400 1 DNI C403 DNI C404 100p 5 0 4 C 10u 6 0 4 C 15p 7 0 4 C 47p 8 0 4 C MIC400 4 3 2 1 P G1 G2 O U400 9 4 6 3 5 2 7 1 8 10 1B0 1A 1B1 S1 2B0 2A 2B1 S2 GND VCC CN400 2 1 22p C409 22p C410 22p C411 MIC401 4 3 2 1 P G1 G2 O CN401 2 1 RCV_P RCV_N VBACK_UP MIC_BIAS MIC_BIAS SPK_P SPK_N MIC_SEL MIC_P MIC_1P MIC_1P MIC_2P MIC_2P MIC1_VGND MIC1_VGND MIC2_VGND MIC2_VGND MIC2_VGND MIC...

Page 194: ... LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 8 BGA PIN MAP 8 BGA PIN MAP EJD slq pds PVP 55 X533 Great Company Great People Great Company Great People NC U200 560 NSP ...

Page 195: ...nly Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes 8 BGA PIN MAP EJD slq pds K EHV3XX3PFU07HP Q Q X634 46 Great Company Great People Great Company Great People Ch NC U301 137 FBGA ...

Page 196: ...ht 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 8 BGA PIN MAP EJD slq pds SP 873 X733 Great Company Great People Great Company Great People NC U400 137 CSP ...

Page 197: ...l Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes 8 BGA PIN MAP 䚐 snl q pds PD 47859HHZS QF QF X735 53 ZOS pany Great People pany Great People Challeng U402 20WLP NC ...

Page 198: ...010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 8 BGA PIN MAP s D slq pds PD DHZS QF QF LF833 53 FV Company Great People Company Great People Chall IC500 20 CSP NC ...

Page 199: ... 200 LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes ...

Page 200: ... U400 PM7540 PMIC Can not power on Can not charge No Service CN500 B to B conn Can not power on Don t operate vibrator volume key optical joystick 3 sensor speaker Touch Window Don t detect USIM Can t operate Camera No LCD display Main Sub B2B Connector WiFi BT Module TCXO 26MHz U600 Wi Fi BT FM Module Can not use WLAN Service BT and FM Radio Function U200 MSM7227 BB chipset Can not power on No LC...

Page 201: ...ity TX Power No Service U1001 GPS LNA No GPS Signal Detection FL1004 WCDMA I RX SAW WCDMA I RX Sensitivity No Service FL1005 I FL1006 VIII WCDMA TX SAW WCDMA I VIII TX Power No Service U1002 WCDMA Dual PAM WCDMA I VIII TX Power No Service FL1002 VIII FL1003 I Duplexer WCDMA TX Power RX Sensitivity No Service J1 USIM conn Can not detect USIM FL1007 FEM WCDMA GSM RX Sensitivity TX Power No Service U...

Page 202: ...rightness automatically U300 Proximity Sensor Can not control the screen s on off operation automatically U200 VGA Camera Can not operate VGA Camera CN200 B to B conn Can not power on Don t operate vibrator volume key optical joystick 3 sensor speaker Touch Window Don t detect USIM Can not operate Camera No LCD display SW300 Camera Key Can not operate camera MIC401 MIC Can not record or send user ...

Page 203: ...ecord or send user voice CN201 Camera Conn Can not operate 5M Camera BAT400 Backup Battery RTC reset S300 Micro SD Socket Can not use a micro SD U302 Motor Driver IC Can not operate vibrator U101 LCD Backlight Charge Pump No Display U101 LCD Backlight Charge Pump No Display CN100 LCD Touch Conn No LCD Display Can not operate Touch U100 RGB 24bit Converter No LCD Display ...

Page 204: ...ly for training and service purposes LGE Internal Use Only 10 RF CALIBRATION 10 RF CALIBRATION Tachyon User manual 1 10 GD880 GD880 RF Calibration Using by Tachyon Tool GD880 Target Power W900 23dBmn W2100 22 5dBm GSM850 900 32 5dBm GSM1800 29 5dBm GSM1900 29dBm ...

Page 205: ...er Used in this article Tachyon except for a detailed description of the environment file and only the description is only required 10 2 Terminology Tachyon CMTest2 HotKimchi integrated program Dictionary meaning Quick bitboda of virtual particles Mean Want to reduce the time means fast bitboda moment 10 3 Tachyon Main UI It will be explained in the Main Screen 10 3 1 Menu Toolbar Run Button Tachy...

Page 206: ...bration Test Start Calibration and Auto Test Calibration Only Start Calibration Test Only StartAuto Test Select band Calibration Start Calibration with selected Band Select Band Item Calibration Start Calibration with selected band and item Select Band Auto Test Start Auto Test with selected Band NV Read Read the NV items NV Write Write the NV items Stop STOP Additional Function Menu Loss Adjustme...

Page 207: ...oltage Current setting View Menu Description Toolbar Menubar Toggle Help Menu Description Tachyon Help Develope progress Tachyon Hotkey About Tachyon 10 3 1 2 Toolbar Toolbar Provides for frequently used commands Picture 7 Toolbar Picture 7 Commands in order are as follows 1 Model Selection 2 Calibration Test 3 Not availalable 4 Stop 5 Test Only 6 Calibration Only 7 Phone Control 8 Loss Adjustment...

Page 208: ...hyon User manual 10 3 1 3 Command Button Picture 8 Start Button Calibration Test Button Stop Button 10 3 2 UI Display Information About the item on the screen output will be explained 10 3 2 1 Port Loss info Picture 9 COM Port Loss Information Area 1 the output is imformation about the COM port Area 2 Show the RF LOSS for the selected model ...

Page 209: ...t ID PID read from phone System Information ezlooks shield box rf switch box Local Factory location Ezlooks Mode On line Off line Limo Using Shield box or not Run Information Option Repeat Test Aging test ESN Write Write the ESN IMEI Test Only Only auto test Rework Rework Option Verification Using verification or not Base Inst Information information of instrument Base Inst Equipment type Executio...

Page 210: ...Test Select when Calibration and Auto Test process Description Excution 1 Menu Run Calibration Test 2 Toolbar Click Hot Key F5 Shield Box 1 F6 Shield Box 2 Button button Click Calibration Test will be in the order Sequence xml file has it i Precede Action NV Write Test command send ii Calibration Calibration iii Auto Test Auto test iV After Action Phone reset Change AMSS If you have a multi system...

Page 211: ...RATION Tachyon User manual 10 4 2 2 Calibration Only This perform only the Calibraton Select when Calibration only process Description Excution 1 Menu Run Calibration Only 2 Toolbar Click Hot Key F9 Button NONE If you have a multi system you must select the Channel 1 2 that you wanted then you can test Picture 16 Calibration Only ...

Page 212: ...s perform only the Test Select when Test Only process Description Excution 1 Menu Run Test Only 2 Toolbar Click Hot Key F8 Button NONE If you have a multi system you must select the Channel 1 2 that you wanted then you can test Picture 17 Test Only 10 4 2 4 Stop This perform Stopping the process Description Excution 1 Menu Run STOP 2 Toolbar Click Hot Key ESC Button button Click ...

Page 213: ...ronics Inc All right reserved Only for training and service purposes 10 RF CALIBRATION 9 10 GD880 Picture 17 Test Only 10 4 2 4 Stop This perform Stopping the process Description Excution 1 Menu Run STOP 2 Toolbar Click Hot Key ESC Button button Click ...

Page 214: ...G Electronics Inc All right reserved Only for training and service purposes MTAB04 MTAB01 MTAB05 MBJZ03 MBJZ02 MPBZ01 SURY00 MPBZ05 MTAZ01 ACGK00 SACY00 MTAZ00 MPBZ00 MPBZ03 AFBZ00 SVCY00 SWCC00 SUSY00 ADBY00 SJMY00 SC402 MCBA00 SC401 ANT1002 ANT1001 SAFY ACGM ACGA00 GMEY00 SBPL00 MLAA00 MBJZ01 MTAB02 ...

Page 215: ... 216 LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes 11 EXPLODED VIEW REPLACEMENT PART LIST ...

Page 216: ... 217 LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes 11 EXPLODED VIEW REPLACEMENT PART LIST ASS Y EXPLODED VIEW ...

Page 217: ... 218 LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes ...

Page 218: ...EX empty DARK BLUE 3 MLAC00 LABEL BARCODE MLAC0004541 PRINTING empty Without Color 3 MLAZ00 LABEL MLAZ0037104 PRINTING empty METAL SILVER 3 MLAZ01 LABEL MLAZ0050901 PRINTING empty WITHOUT COLOR 3 MPAE PACKING BLISTER MPAE0008202 COMPLEX empty WITHOUT COLOR 3 MPAE01 PACKING BLISTER MPAE0008203 COMPLEX empty WITHOUT COLOR 2 APEY00 PHONE APEY0873401 BLACK 3 ACGA00 COVER ASSY BATTERY ACGA0033802 GD880...

Page 219: ...CK M 4 ACGV COVER ASSY BAR ACGV0012601 GD880_COVER ASSY BAR_FRANCE BLACK 5 ACGK00 COVER ASSY FRONT ACGK0147601 BLACK 1 6 MCCE00 CAP RECEPTACLE MCCE0055501 MOLD PC LUPOY SC 1004A SILVER A 6 MCCG00 CAP MULTIMEDIA CARD MCCG0022801 PRESS STS SILVER 6 MCJK00 COVER FRONT MCJK0117101 MOLD PC LUPOY SC 1004A BLACK 7 MFEZ00 FRAME MFEZ0023101 PRESS STS WITHOUT COLOR 7 MICA00 INSERT FRONT MICA0019701 CASTING ...

Page 220: ...TAZ00 TAPE MTAZ0256901 COMPLEX empty WITHOUT COLOR X 5 AFBZ00 FRAME ASSY AFBZ0015901 BLACK 20 6 MFEZ00 FRAME MFEZ0023001 MOLD PC LUPOY SC 1004A BLACK B 6 MPBZ00 PAD MPBZ0248201 COMPLEX empty WITHOUT COLOR C 5 5 GMEY00 SCREW MACHINE BIND GMEY0011201 1 4 mm 3 mm MSWR3 BK N NYLOK WITHOUT COLOR O 22 5 MBJZ01 BUTTON MBJZ0014801 PRESS STS SILVER 2 㾌 BUTTON MBJZ0034801 PRESS STS WITHOUT COLOR C 5 MBJZ02 ...

Page 221: ...5 MTAB01 TAPE PROTECTION MTAB0352401 COMPLEX empty WITHOUT COLOR 5 MTAB02 TAPE PROTECTION MTAB0352301 COMPLEX empty WITHOUT COLOR 5 MTAB03 TAPE PROTECTION MTAB0352701 COMPLEX empty WITHOUT COLOR 5 MTAB04 TAPE PROTECTION MTAB0373801 COMPLEX empty WITHOUT COLOR 5 MTAB05 TAPE PROTECTION MTAB0388501 COMPLEX empty WITHOUT COLOR 5 MTAZ00 TAPE MTAZ0285501 COMPLEX empty WITHOUT COLOR R 10 5 MTAZ01 TAPE MT...

Page 222: ...scription Part Number Spec Color Remark 6 MLAZ00 LABEL MLAZ0038301 PID Label 4 Array WITHOUT COLOR 7 SC401 CAN SHIELD MCBA0061701 PRESS STS WITHOUT COLOR 7 SC402 BRACKET MBFZ0039301 PRESS STS WITHOUT COLOR 7 ANT1001 CONTACT MCIZ0002601 PRESS BeCu WITHOUT COLOR 7 ANT1002 CONTACT MCIZ0002601 PRESS BeCu WITHOUT COLOR 3 MLAA00 LABEL APPROVAL MLAA0062304 COMPLEX empty WITHOUT COLOR ...

Page 223: ...V K X7R HD 1005 R TP 8 C105 CAP CERAMIC CHIP ECCH0000198 2 2 uF 6 3V M X5R TC 1005 R TP 8 C106 CAP CERAMIC CHIP ECCH0000198 2 2 uF 6 3V M X5R TC 1005 R TP 8 C107 CAP CERAMIC CHIP ECCH0000198 2 2 uF 6 3V M X5R TC 1005 R TP 8 C108 CAP CERAMIC CHIP ECCH0000198 2 2 uF 6 3V M X5R TC 1005 R TP 8 C109 CAP CERAMIC CHIP ECCH0000198 2 2 uF 6 3V M X5R TC 1005 R TP 8 C111 CAP CERAMIC CHIP ECCH0000151 4 7 nF 2...

Page 224: ...P CERAMIC CHIP ECCH0010501 7 5 pF 50V D X7R TC 1005 R TP C0G TYPE No X7R empty empty empty empty empty empty 8 C206 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 8 C207 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 8 C208 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 8 C209 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 8 C210 CAP CHIP MAKER ECZH0000813 1...

Page 225: ... PIN 0 4 mm STRAIGHT 0 40MM STRAIGHT FEMALE SMD empty 8 CN201 CONNECTOR BOARD TO BOARD ENBY0040301 34 PIN 0 4 mm ETC H 1 0 Socket 8 CN402 CONNECTOR ETC ENZY0018801 PIN mm ETC RCS 1 35 8 D200 DIODE TVS EDTY0008606 DFN 2 7 82 V 150 mW R TP PB FREE 8 D300 DIODE TVS EDTY0009801 SOT 963 5 V 25 W R TP empty empty 2P 1 8 D301 DIODE TVS EDTY0009801 SOT 963 5 V 25 W R TP empty empty 2P 1 8 D302 DIODE TVS E...

Page 226: ...m 1 16W J 1005 R TP 8 R110 RES CHIP MAKER ERHZ0000485 4700 ohm 1 16W J 1005 R TP 8 R111 RES CHIP MAKER ERHZ0000205 1 Mohm 1 16W F 1005 R TP 8 R112 RES CHIP MAKER ERHZ0000434 1 ohm 1 16W J 1005 R TP 8 R201 RES CHIP MAKER ERHZ0000434 1 ohm 1 16W J 1005 R TP 8 R205 RES CHIP ERHY0003301 100 ohm 1 16W J 1005 R TP 8 R209 RES CHIP MAKER ERHZ0000485 4700 ohm 1 16W J 1005 R TP 8 R210 RES CHIP MAKER ERHZ000...

Page 227: ... 15 15 8 SW400 CONN RF SWITCH ENWY0003901 SMD dB 8 U100 IC EUSY0366801 BGA 96 R TP MDDI SCALIER IC Mobile Pixel Link MPL 8 U101 IC EUSY0383103 CSP 35 R TP 8CH PWM ALC 4LDO IC Sub PMIC 8 U102 IC EUSY0240001 MICROPAK 6 PIN R TP SINGLE BIT UNIT DIRECTIONAL TRANSLATOR PB FREE 8 U302 IC EUSY0200803 MFL 8 R TP Haptic Driver IC 2X2 IC Motor Driver 8 U303 IC EUSY0345201 3 3 QFN 10 PIN R TP 3xis Accelerome...

Page 228: ...KER ECZH0025917 47 pF 25V J NP0 TC 0603 R TP 7 C202 CAP CERAMIC CHIP ECCH0017301 1000000 pF 6 3V M X5R HD 0603 R TP 1 20 6 3V X5R 55TO 85C 0603 R TP 0 3 mm 7 C203 CAP CERAMIC CHIP ECCH0009101 0 1 uF 6 3V K X5R TC 0603 R TP 7 C204 CAP CERAMIC CHIP ECCH0009101 0 1 uF 6 3V K X5R TC 0603 R TP 7 C205 CAP CERAMIC CHIP ECCH0009101 0 1 uF 6 3V K X5R TC 0603 R TP 7 C206 CAP CERAMIC CHIP ECCH0009101 0 1 uF ...

Page 229: ...pty empty 7 C305 CAP CHIP MAKER ECZH0025920 1 nF 16V K X7R HD 0603 R TP empty empty empty empty empty empty 7 C306 CAP CHIP MAKER ECZH0025920 1 nF 16V K X7R HD 0603 R TP empty empty empty empty empty empty 7 C307 CAP CHIP MAKER ECZH0025920 1 nF 16V K X7R HD 0603 R TP empty empty empty empty empty empty 7 C310 CAP CHIP MAKER ECZH0025920 1 nF 16V K X7R HD 0603 R TP empty empty empty empty empty empt...

Page 230: ...6 3V M X5R TC 1608 R TP empty empty empty empty empty empty 0 8 mm 7 C335 CAP CERAMIC CHIP ECCH0005604 10000000 pF 6 3V M X5R TC 1608 R TP empty empty empty empty empty empty 0 8 mm 7 C336 CAP CERAMIC CHIP ECCH0005604 10000000 pF 6 3V M X5R TC 1608 R TP empty empty empty empty empty empty 0 8 mm 7 C337 CAP CERAMIC CHIP ECCH0005604 10000000 pF 6 3V M X5R TC 1608 R TP empty empty empty empty empty e...

Page 231: ...ECCH0009101 0 1 uF 6 3V K X5R TC 0603 R TP 7 C418 CAP CERAMIC CHIP ECCH0000198 2 2 uF 6 3V M X5R TC 1005 R TP 7 C419 CAP CERAMIC CHIP ECCH0000198 2 2 uF 6 3V M X5R TC 1005 R TP 7 C420 CAP CERAMIC CHIP ECCH0006201 4 7 uF 6 3V K X5R TC 1608 R TP 7 C421 CAP CERAMIC CHIP ECCH0000198 2 2 uF 6 3V M X5R TC 1005 R TP 7 C422 CAP CERAMIC CHIP ECCH0009101 0 1 uF 6 3V K X5R TC 0603 R TP 7 C423 CAP CHIP MAKER ...

Page 232: ...X5R TC 0603 R TP 7 C460 CAP CERAMIC CHIP ECCH0000198 2 2 uF 6 3V M X5R TC 1005 R TP 7 C461 CAP CERAMIC CHIP ECCH0017301 1000000 pF 6 3V M X5R HD 0603 R TP 1 20 6 3V X5R 55TO 85C 0603 R TP 0 3 mm 7 C514 CAP CERAMIC CHIP ECCH0009216 22 pF 25V J X7R TC 0603 R TP 7 C600 CAP CERAMIC CHIP ECCH0017301 1000000 pF 6 3V M X5R HD 0603 R TP 1 20 6 3V X5R 55TO 85C 0603 R TP 0 3 mm 7 C601 CAP CERAMIC CHIP ECCH0...

Page 233: ...E empty empty 7 CN401 CONNECTOR ETC ENZY0026901 3 2 5 mm ETC 7 CN500 CONNECTOR BOARD TO BOARD ENBY0051201 80 mm STRAIGHT 0 40MM empty FEMALE empty empty 7 D200 DIODE TVS EDTY0008606 DFN 2 7 82 V 150 mW R TP PB FREE 7 D400 DIODE SWITCHING EDSY0010501 ESC 30 V 100 mA R TP SWITCH DIODE 7 D401 DIODE TVS EDTY0008606 DFN 2 7 82 V 150 mW R TP PB FREE 7 D502 DIODE TVS EDTY0008606 DFN 2 7 82 V 150 mW R TP ...

Page 234: ...5 R TP 7 R211 RES CHIP ERHY0000104 49 9 ohm 1 16W F 1005 R TP 7 R212 RES CHIP ERHY0009505 10 Kohm 1 20W 0 05W J 0603 R TP 7 R213 RES CHIP MAKER ERHZ0000204 100 Kohm 1 16W F 1005 R TP 7 R214 RES CHIP ERHY0009592 2000 ohm 1 20W 0 05W J 0603 R TP 7 R216 RES CHIP ERHY0009506 100 Kohm 1 20W 0 05W J 0603 R TP 7 R218 RES CHIP ERHY0009527 47 Kohm 1 20W 0 05W J 0603 R TP 7 R301 RES CHIP ERHY0009505 10 Kohm...

Page 235: ...C EUSY0355701 PLP1010 4 4 PIN R TP 150mA 2 8V Single LDO IC Voltage Regulator 7 X200 VCTCXO EXSK0007802 19 2 MHz 1 5 PPM 10 pF SMD 3 3 2 5 1 0 2PPM 2 8V SMD P TP 7 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 7 X600 TCXO EXST0001901 26 MHz 2 5 PPM 10 pF SMD 32 15 1 0 TI_WL1251 2 5PPM 2 8V SMD R TP 7 ZD400 DIODE TVS ED...

Page 236: ...9101 0 1 uF 6 3V K X5R TC 0603 R TP 7 C1034 CAP CHIP MAKER ECZH0000830 33 pF 50V J NP0 TC 1005 R TP 7 C1035 CAP CERAMIC CHIP ECCH0009216 22 pF 25V J X7R TC 0603 R TP 7 C1036 CAP CERAMIC CHIP ECCH0009216 22 pF 25V J X7R TC 0603 R TP 7 C1037 CAP CERAMIC CHIP ECCH0000175 2 7 pF 50V B NP0 TC 1005 R TP 7 C1038 CAP CHIP MAKER ECZH0001002 0 5 pF 50V B NP0 TC 1005 R TP 7 C1039 CAP CHIP MAKER ECZH0000839 4...

Page 237: ... 55TO 85C 1005 R TP mm 7 C1070 CAP CERAMIC CHIP ECCH0009101 0 1 uF 6 3V K X5R TC 0603 R TP 7 C1071 CAP CERAMIC CHIP ECCH0009101 0 1 uF 6 3V K X5R TC 0603 R TP 7 C1073 CAP CERAMIC CHIP ECCH0005604 10000000 pF 6 3V M X5R TC 1608 R TP empty empty empty empty empty empty 0 8 mm 7 C1075 CAP CERAMIC CHIP ECCH0009103 100 pF 50V J X7R TC 0603 R TP empty empty C0G empty empty empty 0 3 mm 7 C1076 CAP CERAM...

Page 238: ... 50V J NP0 TC 1005 R TP 7 C444 CAP CERAMIC CHIP ECCH0009216 22 pF 25V J X7R TC 0603 R TP 7 C447 CAP CERAMIC CHIP ECCH0017301 1000000 pF 6 3V M X5R HD 0603 R TP 1 20 6 3V X5R 55TO 85C 0603 R TP 0 3 mm 7 C448 CAP TANTAL CHIP ECTH0005203 33 uF 10V M STD 2012 R TP empty empty empty empty empty empty empty 7 C449 CAP CERAMIC CHIP ECCH0009101 0 1 uF 6 3V K X5R TC 0603 R TP 7 C450 CAP CERAMIC CHIP ECCH00...

Page 239: ...6 22 pF 25V J X7R TC 0603 R TP 7 C521 CAP CERAMIC CHIP ECCH0017301 1000000 pF 6 3V M X5R HD 0603 R TP 1 20 6 3V X5R 55TO 85C 0603 R TP 0 3 mm 7 C522 CAP CERAMIC CHIP ECCH0009514 10 pF 25V D C0G HD 0603 R TP empty empty empty empty empty empty 0 3 mm 7 C6 CAP CHIP MAKER ECZH0025916 33 pF 25V J NP0 TC 0603 R TP 7 C604 CAP CHIP MAKER ECZH0001002 0 5 pF 50V B NP0 TC 1005 R TP 7 C605 CAP CHIP MAKER ECZ...

Page 240: ...60201 CSP 20 R TP Class D mono Capless HP A S IC Audio Sub System 7 J1 CONN SOCKET ENSY0024301 6 ETC 2 54 mm 16 3x17 4x1 5t Stopper 7 L1001 INDUCTOR CHIP ELCH0004713 6 8 nH J 1005 R TP 7 L1002 INDUCTOR CHIP ELCH0004710 15 nH J 1005 R TP 7 L1003 INDUCTOR CHIP ELCH0004720 1 2 nH S 1005 R TP 7 L1004 INDUCTOR CHIP ELCH0004720 1 2 nH S 1005 R TP 7 L1005 INDUCTOR CHIP ELCH0001430 100 nH J 1005 R TP PBFR...

Page 241: ...2 ohm 1 16W J 1005 R TP 7 R1006 RES CHIP MAKER ERHZ0003801 5 1 ohm 1 16W J 1005 R TP 7 R1007 RES CHIP MAKER ERHZ0000411 120 ohm 1 16W J 1005 R TP 7 R1008 RES CHIP MAKER ERHZ0003801 5 1 ohm 1 16W J 1005 R TP 7 R1009 RES CHIP MAKER ERHZ0000404 1 Kohm 1 16W J 1005 R TP 7 R1010 RES CHIP MAKER ERHZ0000517 91 ohm 1 16W J 1005 R TP 7 R1011 RES CHIP MAKER ERHZ0000490 51 ohm 1 16W J 1005 R TP 7 R1012 RES C...

Page 242: ... 1 20W 0 05W J 0603 R TP 7 R502 RES CHIP MAKER ERHZ0000422 15 Kohm 1 16W J 1005 R TP 7 R505 RES CHIP ERHY0009526 4 7 Kohm 1 20W 0 05W J 0603 R TP 7 R508 RES CHIP ERHY0009524 47 ohm 1 20W 0 05W J 0603 R TP 7 SPFY00 PCB MAIN SPFY0215601 FR 4 0 75 mm ANY LAYER10 7 SW1001 CONN RF SWITCH ENWY0004001 SMD 1 3 dB 7 SW1002 CONN RF SWITCH ENWY0006801 SMD dB 0 40MM STRAIGHT SOCKET SMD empty empty 7 U1001 MOD...

Page 243: ... 2M BLACK 1 2m 4 Shield case MicroUSB ID resistor open N 3 SGEY00 EAR PHONE EAR MIKE SET SGEY0007610 20mW 16 ohm 99dB 1KHZ 1mW 65dB 10KHZ 104dB 100KHZ empty empty 3 5 L TYPE STEREO 4POLE PLUG Mic Slimtype Canal BK Earphone Stereo 3 SSAD00 ADAPTOR AC DC SSAD0031001 100 240V 5060 Hz 5 1 V 0 7 A CE STA U12ED Europe Cableless 5 1 0 7 WALL 2P USB 㾌 ADAPTOR AC DC SSAD0031002 100 240V 5060 Hz 5 1 V 0 7 A...

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