LG GU280 Service Manual Download Page 41

Page: 41 / 149

- 42 -

LGE Internal Use Only

Only for training and service purposes

4. TROUBLE SHOOTING

4.3.2 Checking Front-End Module Block

Checking Flow

Check TP1

=2.85V?

End

Check U201

Yes

TP2 Signal

same as TP7?

Replace SW101

Yes

Check TP3 of SW101

with RF Cable

Summary of Contents for GU280

Page 1: ...Service Manual Model GU280 GU285 Internal Use Only Service Manual GU280 GU285 Date October 2009 Issue 1 0 ...

Page 2: ...luetooth Block 55 4 6 Checking FM Radio Block 58 4 7 Base band part 61 4 8 Charger Troubleshooting 63 4 9 USB Troubleshooting 64 4 10 USIM Detect Troubleshooting 66 4 11 Camera Troubleshooting 68 4 12 Main Keypad Backlight Troubleshooting 70 4 13 Sub Keypad Backlight Troubleshooting 71 4 14 LCD Troubleshooting 73 4 15 Vibrator 74 4 16 Receiver Path 75 4 17 Headset path 77 4 18 Speaker phone path 7...

Page 4: ...nauthorized 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 service as long as repair is not done C Changes in Service A local telephone company may ma...

Page 5: ...ctric 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 repairs are made to a system board they should spread the floor with anti static mat which is also ground...

Page 6: ...110 2170 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 Frequency Range WCDMA FDD1 EGSM GSM850 DCS1800 PCS1900 with seamless handover Phase 2 include AMR SIM Toolkit Class 1 2 3 C E Supporting Standard Comment Feature Item 2 3 Main Parts Solution QSC6240 Qual...

Page 7: ...50 33 dBm DCS 1800 30 dBm PCS 1900 30 dBm WCDMA GSM GPRS TX output power WCDMA FDD1 105 dBm EGSM 105 dBm GSM850 105 dBm DCS 1800 105 dBm PCS 1900 105 dBm RX sensitivity Power Level 5 2G Tx 12dBm 3G 2G Over 180mins 3G Over 180 mins Talk time Power Off 900mAh 3 hrs Charging time Paging Period 5 2G DRX 1 28 3G 2G Over 320 hrs 3G Over 250 hrs Stand by time Staggered 10 Layers 0 8t PCB TBD Volume With ...

Page 8: ...ing MPEG4 H 263 Camcorder MPEG4 H 263 WMV9 Video Player MP3 WMA AAC HE AAC EAAC Music Player EDR 2 0 Blue Tooth Built in Vibrator Vibrator No Data Fax FR EFR HR AMR Speech coding NAND Flash 1Gbit SDRAM 512Gbit Memory Yes PC synchronization 3 5Phi 4 Pole Stereo Ear Phone Jack 5 Pin System connector Main Internal Fixed Type ANT Slide Key pad 11 Main Key pad 15 Keypad 1 3 CMOS Camera Built in Camera ...

Page 9: ...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 Reference S...

Page 10: ...upied Bandwidth 5 MHz at 3 84 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 41 dBm 300 kHz RW 1893 5 MHz f 1919 6 MHz 67 dBm 100 kHz RW 925 MHz f 935 MHz 79 dBm 100 kHz RW 935 MHz f 960 GHz 71 dBm...

Page 11: ...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 offset 20 MHz Spurious Emissions 57 dBm 100 kHz BW ...

Page 12: ...ption The RF platform of GU280 supports two different communication modes WCDMA GSM modes including five communication bands W2100 W850 GSM850 GSM900 GSM1800 GSM1900 The all the RF blocks can be divided into three main parts which are a WCDMA part a GSM and a Antenna switch module The simplified block diagram is shown in Figure 1 1 1 Figure 1 1 1 Block diagram of RF part ...

Page 13: ...MA transceiver uses differential analog in phase and quadrature phase interfaces that is an IQ interface both in the receiver and transmitter information path The transceiver has the following general features Power class Power class 3 24dBm in Band II and V Zero IF Receiver No IF filter needed Direct IQ modulation transmitter Figure 1 2 1 WCDMA RF structure ...

Page 14: ...combined with a control signal from the baseband circuits The wide range of driver amplifier output levels is achieved while supporting the WCDMA standard s requirements for ACLR spurious emissions Rx band noise etc The high band driver amplifier output is followed by a SPDT switch that provides two high band outputs thereby fulfilling the tri band UMTS requirement The low band output port is driv...

Page 15: ...UMTS LNAs only one is active at a time The active gain stepped LNA output drives a shared quadrature downconverter directly an off chip inter stage filter is not required The elimination of this filter is achieved by a combination of factors New on chip QSC processing Higher performance achieved by the differential duplexer to LNA interface Greater duplexer suppression of Tx leakage The downconver...

Page 16: ...ration of CoolPAM circuit technology which supports 3 power modes bypass mid and high power modes The CoolPAM is stage bypass technology enhancing PAE power added efficiency at low and medium power range Active bypass feature is added to 5th generation to enhance PAE further at low output range This helps to extend talk time A directional coupler is integrated into the module and both coupling and...

Page 17: ... DNI 2 1 4 7p L120 1 2 C149 DNI 1 2 C145 680p 1 2 C146 680p 1 2 VPWR VPWR C147 330p 1 2 C126 0 2 1 R109 68 2 1 VPWR B7671 FL103 836 5 MHz 881 5 MHz 9 5 7 3 1 2 8 4 6 ANT GND2 RX_OUT2 GND1 RX_OUT1 TX_IN GND4 GND3 GND5 10n L118 2 1 4 7n C150 2 1 12n C160 2 1 ACPM 5201 U102 6 5 7 4 8 3 9 2 10 1 11 PGND VCC1 VCC2 RFIN RFOUT VBP ISO VMODE GND VEN CPL 1 5n C119 2 1 2 2u C151 1 2 L124 DNI 1 2 C155 1n 1 2...

Page 18: ...UMTS transmitters The GSM transmitters use the same quadrature upconverters as well one for low band signals and one for high band with just one active at a time The transmitter LO signals are generated by circuits described in next section and delivered to the upconverter circuits at the correct frequency with the proper phase relationship and with an adequate drive level The SPDT switches at eac...

Page 19: ...mended GSM receiver path configurations both are shown in Figure 1 3 2 1 The configuration shown on top allows the GSM 850 and GSM 1900 bands to share the UMTS 850 and UMTS 1900 paths for US applications and uses four LNA inputs to support quad band GSM operation The lower example uses two LNAs for quad band GSM operation one low band and one high band with two way SAW filters between the antenna ...

Page 20: ... 21 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 3 Technical Brief Figure 1 3 2 1 QSC GSM receiver signal paths functional diagram ...

Page 21: ... lowpass filters whose passband and stopband characteristics are optimized for the active GSM waveform Both filter outputs are buffered to drive their analog to digital converters for digitization The digital baseband outputs are routed to QSC baseband circuits for further processing The Rx LO signal is delivered to the downconverter circuits from the LO generation and distribution circuits as des...

Page 22: ...ntend module for mobile telephone system Covering GSM850 GSM900 GSM1800 GSM1900 WCDMA 2100 bands Integration of TX low pass filters switches and decoder Integration of GSM 850 EGSM PCN and PCS RX SAWs Balanced outputs of all RX ports diplexed for GSM 850 EGSM Integration of ESD protection at Ant port to 8kV acc IEC 61000 4 2 contact discharge Figure 1 3 4 1 Block diagram of FEM ...

Page 23: ...a serial bus The digital baseband controller also manages PA band control and the antenna switch mechanism in the front end module The 26 MHz VCXO clock residing in the GSM EDGE transceiver is turned on only when required the digital baseband controller initiates this The EDGE GSM GPRS RF system requires control which is temperature dependent The temperature within the RF system is estimated by a ...

Page 24: ...t reserved Only for training and service purposes LGE Internal Use Only 3 Technical Brief 3 Base Band Technical Description 3 6 General Description QSC6240 has all eight major functional blocks as like Figure 2 1 Figure 2 1 QSC6240 Base band block ...

Page 25: ...ultiple processors on chip one ARM microprocessor and two DSP processors Each processor is part of a functional subsystem The micro subsystem includes the ARM926EJ S microprocessor The modem subsystem includes the QDSP4u8 digital signal processor mDSP The application subsystem includes the QDSP4u8 application digital signal processor aDSP Figure 2 1 1 Processors and bus architecture ...

Page 26: ...ode NOR SDRAM is not supported on the EBI1 bus The ARM926EJ S microprocessor is a cached processor and all its accesses to external memory use burst techniques of four or eight 32 bit words when the memory region is declared to be cacheable bufferable To take advantage of this QSC higher performance feature data from memories must satisfy the requirements for these burst accesses QSC6240 DDR SDRAM...

Page 27: ...cs Inc All right reserved Only for training and service purposes 3 Technical Brief QSC6240 LCD 2 0 TFT 176x220 QCIF EBI2_DATA 15 0 LCD_ADS LCD_CS_N EBI2_WE_N LCD_RST LDO_LCD_2 8V WLED_PWR LCD_IF 2 1 LDO_LCD_1 8V Figure 2 1 2 2 The LCD interfaces of GU280 ...

Page 28: ...S and HS 2 0 compliant I2C compatible for peripheral controls 1 8 V UART up to 4 Mbps Bluetooth 2 0 support via external SoC WLAN via external device SDIO NFC via external module I2C FM radio via external module I2C USIM SIM and USB UICC support 1 8 and 3 V Keypad interface SPI master only for peripheral support Two secure digital controllers WLAN and secure digital SD cards Figure 2 1 3 The conne...

Page 29: ...31 GPIO_30 GPIO_29 GPIO_28 GPIO_27 GPIO_26 GPIO_25 GPIO_24 GPIO_23 GPIO_22 GPIO_21 GPIO_20 GPIO_19 GPIO_18 GPIO_17 GPIO_16 GPIO_15 GPIO_14 GPIO_13 GPIO_12 GPIO_11 GPIO_10 GPIO_9 GPIO_8 GPIO_7 GPIO_6 GPIO_5 GPIO_4 GPIO_3 GPIO_2 GPIO_1 GPIO_0 7 0 3 R K 2 2 TP302 TP K 2 2 8 0 3 R K 2 2 9 0 3 R V 8 1 _ E M S M _ G E R V V 8 1 _ M A C _ O D L 1 1 3 R K 2 2 DNI C309 TRK_LO_ADJ PA_R0 UART1_CTS_N UART1_RF...

Page 30: ...y while voice and or data signals continue to be processed separately 1024x searcher direct facility termination DFT accelerator off chip RAM for measured data storage 3 6 6 Internal base band functions Several baseband circuits within the QSC6240 device provide functions that are necessary only to make the device operate properly these functions are not generally used directly by other handset ci...

Page 31: ...applications include Qcamera Qcamcorder and Qvideophone The CAMIF delivers the raw 10 bit Bayer pattern data preferred to the video front end VFE that performs the required image processing RGB triplet generation color space conversion auto white balance auto exposure gamma correction etc and prepares the image for capture or transmission The QSC device also supports a YUV 4 2 2 input from the sen...

Page 32: ...sumption that the LCD panel has an embedded LCD controller and a frame buffer The image transfer is then the copying of the image from the QSC memory system to the frame buffer within the LCD module While the MDP is transferring an image to the LCD module it can perform a final set of operations to the image The set of operations that the MDP can perform has been chosen to maximize the efficiency ...

Page 33: ... 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 LCD_LDO_1 8V K 7 4 5 0 1 R EVLC14S02050 VA110 WLED_1 WLED_2 WLED_3 LCD_IF 2 LCD_IF 1 LCD_VSYNC EBI2_OE_N EBI2_WE_N LCD_ADS LCD_RST LCD_CS_N EBI2_DATA 15 EBI2_DATA 14 EBI2_DATA 13 EBI2_DATA 12 EBI2_DATA 11 EBI2_DATA 10 EBI2_DATA 9 EBI2_DATA 8 EBI2_DATA 7 EBI2_DATA 6 EBI2_DATA 5 EBI2_DATA 4 EBI2_DATA 3 EBI2_DATA 2 E...

Page 34: ...ltage and pulse charging of the main battery Autonomous charging option driven by an on chip state machine without software intervention Software controlled charging option backwards compatible with previous QSC and PM products Coin cell battery including charging Battery voltage detectors with programmable thresholds VDD collapse protection Charger current regulation and real time monitoring for ...

Page 35: ...positive voltage linear regulators Four rated for 300 mA Six rated for 150 mA Three rated for 50 mA One negative voltage charge pump rated for 200 mA referred to as a negative charge pump NCP Each regulator has two logic OR input bits a logic high at either input enables that regulator A master bit that enables all regulators according to their default condition A dedicated bit that enables only t...

Page 36: ...y be used to power other circuits or not used at all 2 Each current listed in this table is its regulator s rated value the current at which the regulator meets all its performance specifications Higher currents are allowed but higher input voltages may be required and some performance characteristics may become degraded See the appropriate regulator sections for details 3 VREG_MSMP powers key int...

Page 37: ...101 AVAGO Not Applied U104 Dong Eun RF Switch connector SW101 DAISHINKU VCTCXO 19 2MHz X101 EPCOS GSM Low Band Switching Tx SAW Filter GSM850 900 FL108 EPCOS Duplexer WCDMA2100 FL106 EPCOS Front End Module FEM FL105 EPCOS 3G Tx SAW Filter FL104 EPCOS Duplexer WCDMA850 or WCDMA900 FL103 EPCOS Not Applied FL102 Qualcomm QSC6240 U201 AVAGO PAM WCDMA1900 or WCDMA2100 U102 Triquint PAM GSM 850 900 1800...

Page 38: ...09 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 4 TROUBLE SHOOTING 4 2 RF Path 4 2 1 WCDMA path 4 2 2 GSM path Tx Path Rx Path Tx Rx Path Tx Path Rx Path Tx Rx Path ...

Page 39: ...SHOOTING 4 3 Trouble Shooting of GSM Part GSM850 900 1800 1900 Tx Path Rx Path Tx Rx Path U201 FL105 U101 U102 FL108 X101 FL106FL103 FL104 SW101 Setup Test Equipment Cell power 74dBm GSM850 CH 190 EGSM900 CH 38 DCS1800 CH 698 PCS1900 CH 661 1 Check VCTCXO X101 2 Check M S FEM SW101 FL105 3 Check Rx Part 4 Check Tx Part Start End ...

Page 40: ...TP1 TP3 Check TP2 VCC of X101 Check TP3 0 TP3 1 8V Waveform of TP1 Similar to waveform Below End Check U201 Check U201 Replace X101 Yes Yes No No No Checking Flow Circuit Diagram Checking Points 19 2MHz X101 DSA321SCA 2 1 3 4 VDD OUT VCONT GND C106 1n C107 100n 100 R104 C108 10n 9 0 1 C n 1 VREG_TCXO_2 85V 33n C179 2K R113 TRK_LO_ADJ 19M_XTAL_IN Close to QSC TP2 TP1 TP1 ...

Page 41: ...nics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING 4 3 2 Checking Front End Module Block Checking Flow Check TP1 2 85V End Check U201 Yes No TP2 Signal same as TP7 Replace SW101 Yes No Check TP3 of SW101 with RF Cable ...

Page 42: ...GSM1800 1900 Tx 0 0 1 1 GSM850 900 Tx 2100 850 VREG_MSMP_2 6V 100n L101 C175 15p C110 33p L106 15n C122 33p R110 1n SW101 RF 800 G2 ANT RF G1 0 C163 FL105 85090019002100 6 5 4 3 7 9 11 20 24 22 23 21 13 12 14 10 15 8 1 18 19 2 16 17 PCN_RX2 PCN_RX1 ANT PCS_RX2 PCS_RX1 GND1 GND2 GSM850_RX_EGSM_RX2 GND3 GSM850_RX_EGSM_RX1 GND4 GND5 WCDMA_850 GND6 WCDMA_1900 GND7 WCDMA_2100 GSM850_EGSM_TX PCN_PCS_TX ...

Page 43: ...erved Only for training and service purposes 4 TROUBLE SHOOTING 4 3 3 Checking GSM Rx part Checking Flow Rx Still has problem Re download Calibration GSM DCS PCS Rx is OK Yes No Check TP1 4 Signal exist Check FEM Soldering of TPs Yes No START Checking Points TP1 TP2 TP3 TP4 ...

Page 44: ...1960MHz B7686 FL101 7 9 2 5 4 8 1 3 6 ANT TX_IN RX_OUT1 RX_OUT2 GND1 GND2 GND4 GND3 GND5 R103 49 9 2 1 C138 2 2p 1 2 C142 1 8n 2 1 DNI C159 1 2 L107 10n 0 C123 2 1 L108 33p 1 2 L109 33p 1 2 0 5p C124 1 2 2 2p C134 1 2 DNI C127 1 2 1n C128 2 1 DNI C129 1 2 0 0 1 7 0 1 R 2 1 8 0 1 R 0 0 1 2 1 2 2u C130 1 2 DNI C132 1 2 DNI C133 1 2 3 3n C144 2 1 L121 DNI 1 2 1 8n C116 2 1 C135 DNI 1 2 DNI C136 1 2 0...

Page 45: ...30dBm over TP3 33dBm over Re download Calibration Remove U101 and check the power of pin1 pin8 on board Yes No Is the level of TP4 TP5 same to Table 1 TP4 Check U201 TP5 Check VBAT Line Yes No Setup Test Equipment Cell Power 60dBm Tx Power Level Set GSM 5 DCS 0 PCS 0 Checking Flow Check TP1 GSM850 EGSM 32dBm DCS PCS 29dBm over The power of pin1 pin8 Is over 0dBm Check U201 No Yes No Replace U101 Y...

Page 46: ... C131 SW101 RF 800 G2 ANT RF G1 39p C152 C153 1n C154 10u C157 1n 2 1 9 1n C161 FL105 85090019002100 6 5 4 3 7 9 11 20 24 22 23 21 13 12 14 10 15 8 1 18 19 2 16 17 PCN_RX2 PCN_RX1 ANT PCS_RX2 PCS_RX1 GND1 GND2 GSM850_RX_EGSM_RX2 GND3 GSM850_RX_EGSM_RX1 GND4 GND5 WCDMA_850 GND6 WCDMA_1900 GND7 WCDMA_2100 GSM850_EGSM_TX PCN_PCS_TX D D V 1 L R T C 2 L R T C 3 L R T C 4 L R T C 8 2n L104 2 1 2 7n C176...

Page 47: ...art START Check Point Mobile SW FEM Check Point VCTCXO Re download Calibration Check Point Tx Part Check Point Rx Part Setup Test Equipment Cell Power 74dBm WCDMA Rx CH 10700 WCDMA Tx CH 9750 Checking Flow Checking Point FEM Mobile Switch RF Transceiver VCTCXO WCDMA HB PAM Setup Test Equipment Cell Power 74dBm WCDMA Rx CH 4407 WCDMA Tx CH 4182 When WCDMA Low Band Test ...

Page 48: ...9 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 4 TROUBLE SHOOTING 4 4 1 Checking VCTCXO Refer to GSM Part 4 3 1 4 4 2 Checking Mobile SW FEM Refer to GSM Part 4 3 2 ...

Page 49: ... training and service purposes 4 TROUBLE SHOOTING 4 4 3 Checking WCDMA Rx Part Set Rx Level 25dBm Check TP2 About 27dBm Check TP1 About 25 5dBm Re download Calibration Check TP3 About 29dBm Checking Flow TP1 TP2 Checking Point TP3 Yes No Check SW101 No Check FL105 Yes No Check FL103 FL106 ...

Page 50: ...OW MODE 1880 1960MHz B7686 FL101 7 9 2 5 4 8 1 3 6 ANT TX_IN RX_OUT1 RX_OUT2 GND1 GND2 GND4 GND3 GND5 R103 49 9 2 1 C138 2 2p 1 2 C142 1 8n 2 1 DNI C159 1 2 L107 10n 0 C123 2 1 L108 33p 1 2 L109 33p 1 2 0 5p C124 1 2 2 2p C134 1 2 DNI C127 1 2 1n C128 2 1 DNI C129 1 2 0 0 1 7 0 1 R 2 1 8 0 1 R 0 0 1 2 1 2 2u C130 1 2 DNI C132 1 2 DNI C133 1 2 3 3n C144 2 1 L121 DNI 1 2 1 8n C116 2 1 C135 DNI 1 2 D...

Page 51: ...pment Cell Power 60dBm UE CL PWR control parameter All up bits Check TP1 2 Is Tx power exist 0dBm Re download Calibration Checking Flow Yes No Check U201 Check TP3 4 Is Tx power exist 0dBm No Check FL102 FL104 Check TP5 6 Is Tx power exist 24dBm No Check U102 U104 Yes Check TP7 8 Is Tx power exist 22dBm No Check FL103 FL106 Yes Check TP9 Is Tx power exist 20dBm No Check FL105 Yes ...

Page 52: ... 53 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 4 TROUBLE SHOOTING Checking Point TP1 TP2 TP3 TP4 TP5 TP6 TP7 TP8 TP9 ...

Page 53: ...U102 6 5 7 4 8 3 9 2 10 1 11 PGND VCC1 VCC2 RFIN RFOUT VBP ISO VMODE GND VEN CPL 1 5n C119 2 1 2 2u C151 1 2 L124 DNI 1 2 C155 1n 1 2 C137 DNI 1 2 B9414 FL104 1950MHz 5 3 2 4 1 IN OUT G1 G2 G3 C158 330p 1 2 VPWR 8 2p C148 1 2 6 8n R111 2 1 B7696 FL106 1950 MHz 2140 MHz 9 5 7 4 1 2 8 3 6 ANT TX_IN RX_OUT2 GND1 RX_OUT1 GND2 GND4 GND3 GND5 DNI L125 2 1 U104 ACPM 5305 6 5 7 4 8 3 9 2 10 1 11 PGND VEN ...

Page 54: ... and service purposes LGE Internal Use Only 4 TROUBLE SHOOTING Start TP1 TP2 Signals exist TP3 Is clock ok 32 7KHz Change the Main board YES YES YES NO NO Change the X201 Change the main board TP4 Is clock ok 32MHz NO Change the X102 Checking Flow 4 5 Checking Bluetooth Block ...

Page 55: ... A 3 B 3 A D3 E1 D4 C3 F6 F1 C6 F5 D6 E6 C4 E4 F3 D5 C1 B5 E5 F4 A5 B4 C5 1 D 2 B 1 B 1 A 2 D 6 B 2 F 3 E 2 E 2 C 2 A 6 A D N G 1 _ D N G A 2 _ D N G A 3 _ D N G A 4 _ D N G A 5 _ D N G A G I D _ G E R V A N A _ G E R V 1 A _ D D V 2 A _ D D V 3 A _ D D V 4 A _ D D V VDD_IO SYSRST_B VDD_DIG PCM_IN PCM_OUT PCM_SYNC VDD_ANA PCM_CLK VDD_PA AUX_TXD HCI_5 HCI_4 HCI_3 HCI_2 HCI_1 RF_BIAS HCI_0 MFP_4 MFP...

Page 57: ...ics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING Start TP1 TP2 Signals exist TP3 Is clock ok 32 768KHz Change the Main board YES YES NO NO Change the X201 Change the main board 4 6 Checking FM Radio Block Checking Flow ...

Page 58: ...nt DNI C502 VREG_MSMP_2 6V V 8 1 _ E M S M _ G E R V C501 DNI TEA5991_UK U501 5 F 4 F 3 F 2 F 1 F F6 E1 E6 D1 D6 C1 C6 B1 B6 A1 6 A 5 A 4 A 3 A 2 A T S R L C S A D S F E R F G I D F E R V BUSSEL2 VDD SEN DGND BUSSEL1 AUDOR RFGND AUDOL RFI VCC D N G A N E _ T 1 O I P G X T N I 2 O I P G K L C _ P E E L S _ D 2 D LINEIN_R_M LINEIN_L_P A D S _ 2 C 2 I L C S _ 2 C 2 I FM_ANT DNI C225 DNI C235 FC 255 X...

Page 60: ...to low VA106 Æ QSC6240 Power Up Æ VREG_MSMC_1 2V C203 VREG_RF1 C217 VREG_MSME_1 8V C237 VREG_MSMP_2 6V C229 VREG_RF2_1 4V C259 VREG_MPLL_1 3V C240 VREG_USB2P6 C227 VREG_TCXO_2 85V C239 power up and system reset assert to MSM Æ Phone booting and PS_HOLD assert to PMIC Start Change the main board VREG_MSMC_1 2V VREG_RF1_2 3V VREG_MSME_1 8V VREG_MSMP_2 6V VREG_RF2_1 4V VREG_MPLL_1 3V VREG_USB2P6 VREG...

Page 61: ...ght 2009 LG Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING VREG_MSME VREG_MPLL QSC6240 VREG_USB2P6 VREG_RF2 VREG_RF1 VREG_MSMC VREG_TCXO _2 85V 19M_XTAL IN 19 2MHz X201 32 768KHz VREG_MSMP ...

Page 62: ...Change TA END NO Yes NO NO Yes Charging Procedure Connect TA or USB Cable Control the charging current by QSC6240 Charging current flows into the battery Check Point Connection of TA or USB Cable Charging current path Battery Troubleshooting Setup Connect TA and battery to the phone Troubleshooting Procedure Check the charger TA or USB Cable connector Check the charging current Path Check the batt...

Page 63: ... USB Initial sequence is USB connected to I O connector Æ VBUS C224 go to 5V Æ USB_DP go to 3 3V Æ USB_DN go to 400mV Æ USB work NO YES YES NO YES NO YES NO USB Troubleshooting Flow Start Change the main board Connect USB cable Go to Power on trouble shooting guide Check the USB cable Check the USB cable Cable is connected Power is ON C224 is 5V USB_DP is 3 3V ...

Page 65: ...10 USIM Detect Troubleshooting USIM Initial sequence is VREG_USIM_2 85V go to 1 8V or 3 0V Æ USIM_CLK USIM_RST USIM_DATA triggered Æ USIM IF work Yes No YES NO No Yes Work well Change the Main board No Yes Check J401 End Vreg_USIM is 1 8V or 3 0V USIM_P_CLK RST is run Re insert the SIM card Change the SIM card Work well Work well End Start ...

Page 66: ...401 C3 C2 C1 C7 C6 C5 C1 VREG_USIM_2 85V C2 USIM_RST USIM_CLK C3 C7 USIM_DATA C5 C6 GND NC J401 GCA26A 6S H16 M E1500 C11 C10 C12 C9 C7 C3 C6 C2 C5 C1 VCC GND1 RST VPP CLK IO GND2 GND5 GND3 GND4 p 2 2 4 0 4 C 8 0 4 C u 2 2 6 0 4 A V 3 0 0 2 0 S 8 1 C L V E 20K R412 7 0 4 A V 3 0 0 2 0 S 8 1 C L V E EVLC18S02003 VA408 V 5 8 2 _ M I S U _ G E R V p 2 2 5 1 4 C USIM_RST USIM_CLK USIM_DATA USIM ...

Page 67: ... Troubleshooting Camera control signals are generated by QSC6240 Start NO END Camera is OK Check the camera connection to the socket and reconnect the camera Chang the Main board Camera is OK Check the CAM_MCLK FL605 Pin8 Change the camera Yes Yes NO NO END Yes Change the Main board LDO_CAM__2 8V LDO_CAM_1 8V C604 C603 Change the Main board Yes NO ...

Page 69: ...for training and service purposes 4 TROUBLE SHOOTING 4 12 Main Keypad Backlight Troubleshooting MAIN Key Pad Back Light is on as below Key pressing Æ LED_CON go down low below 0 8v Æ MAIN Key Backlight LED On Start Change the Main board Check battery NO Yes Key press VPWR is above 3 2V ...

Page 70: ... TROUBLE SHOOTING 4 13 Sub Keypad Backlight Troubleshooting Sub Key Pad Back Light is on as below Key pressing Æ LED_CON go down low below 0 8v Æ Sub Key Backlight LED On Start END Check battery NO Yes Yes Key press Check RA101 below 0 8v VPWR is above 3 2V LED ON Yes Change the FPCB OR KEY PCB NO Change the MAIN PCB NO ...

Page 71: ...ight reserved Only for training and service purposes 4 TROUBLE SHOOTING RA101 KEY PCB BOTTOM 10 RA101 8 7 6 5 4 3 2 1 19 217UTD_S887 2_TR8 LD101 VA109 EVLC14S02050 R W P V 19 217UTD_S887 2_TR8 LD103 LD104 19 217UTD_S887 2_TR8 19 217UTD_S887 2_TR8 LD102 SUB_BACKLIGHT ...

Page 72: ...ooting LCD control signals are generated by QSC6240 The signal path is QSC6240 Æ CN102 Æ LCD Module Start Key LED is on Change the FPCB Yes NO Press END key Disconnect and reconnect The LCD connector CN102 END LCD display OK No Yes END LCD display OK No Yes Change SUB PCB END LCD display OK No Yes Change the Main Board SUB Keypad Backlight Troubleshooting ...

Page 73: ... Vibrator is operate when DC motor driver audio amp is enabled Start Operate the Vibrator NO YES END working Change vibrator or Change the Main PCB NO YES FPCB near receiver Solder the wire on to FPCB NO YES Change the FPCB VPWR above 3 2V And MOTOR_POWER_N below 1V MOTOR_POWER_N VPWR Wired Vibrator to FPCB VIB Change vibrator or Change the Main PCB ...

Page 74: ...se Only 4 TROUBLE SHOOTING 4 16 Receiver Path QSC6240 EARON EAROP ÆFB110 FB111 Æ RCV100Æ Receiver Start Connect the phone to network Equipment and setup call Setup 1KHz tone out NO The sine wave appears at FB110 FB111 YES NO Can you hear the tone Change the receiver Change the FPCB YES END Change the Main board ...

Page 76: ... Æ R404 R405 Æ IC401 MUIC Æ CN401 u USB Connector Start Connect the phone to network equipment and setup call Setup 1KHz tone out and insert headset Can you hear the tone Change the Headset YES NO END Sine wave appears at CN401 pin2 3 Change the Main board YES NO Sine wave appears at R404 R405 Sine wave appears at C530 C531 Check the MUIC Change the Main board YES NO Check the Audio Sub System Cha...

Page 77: ... 78 LGE Internal Use Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING CN401 R404 R405 MAIN Bottom IC401 C530 C531 IC500 ...

Page 78: ...path QSC6240 LINE_OUT_R_N LINE_OUT_L_P Æ C519 C520 DNI Æ Audio Sub System IC500 Æ FB501 FB502 Æ CN501 Æ Speaker Start Connect the phone to network equipment and setup call Setup 1KHz tone out Sine wave appears at FB501 502 Change the Speaker YES Sine wave appears at C519 C520 Change the Main board Check the Audio Sub System YES NO NO Change the Main board ...

Page 79: ... 80 LGE Internal Use Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING MAIN Bottom FB501 FB502 C519 C520 IC500 CN501 ...

Page 80: ...poses LGE Internal Use Only 4 TROUBLE SHOOTING Start MIC_BIAS C510 is 1 8V Change the Main board NO Make a call Change the MIC NO YES Change the Main board Make sound to MIC Work well END YES NO 4 19 Main microphone MIC501 Æ MIC_BIAS C510 Æ MIC1P C512 Æ QSC6240 YES Sine wave appears at C512 ...

Page 81: ...ght 2009 LG Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING C512 C510 MAIN Bottom MIC501 SPM0410LR5H QB 6 5 4 3 2 1 OUT G1 G2 G3 PWR G4 12p C506 C508 47p C510 10u C512 33p MICBIAS MIC1P MIC ...

Page 82: ...nly 4 TROUBLE SHOOTING 4 20 Headset microphone Headset ÆCN401 u USB connector Æ IC401 MUIC Æ MIC2P C406 Æ QSC6240 Start Yes Insert Headset Make a call R414 is 1 8V NO Change the MAIN board Change the MUIC Sine wave appears at C406 Check the MUIC Change the Headset Change the MAIN board NO Yes Change the MAIN board ...

Page 84: ...ers to download images from PC to handset LGMDP is a download tool with capabilities to upload image files to the handset LGMDP is designed to be simple to use and easy enough for the beginner to upload executable images to the handset LGMDP supports Windows 2000 XP where the LG Ver 4 6 or later USB modem driver is installed Additionally LGMDP allows multi downloading up to 9 handsets at the same ...

Page 85: ...nces of the file menu the way you want Click on the File menu and select Preferences Play a success sound It will be played a wav file when the download has been completed To enable this simply check the box Always on Top Check if LGMDP always appears at the top of the window so that user can monitor it all the time Automatically run Select Port When LGMDP starts When LGMDP starts it will automati...

Page 86: ...Use Only 5 Downloading 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 COM7 shall be different from that of the port number in the snapshot 5 2 1 Connecting to PC ...

Page 87: ...or training and service purposes 5 Downloading 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 5 2 1 Connecting to PC ...

Page 88: ...he edit box shows the file path where images are located Please note that all images should be located in a selected folder 2 Click on the Browse button to select image files to be downloaded on the handset 5 2 1 Connecting to PC 1 2 3 6 4 5 7 WARNING For a Media Image please make sure that country code is match with connected phone If country code does not match select Browse button next to the M...

Page 89: ...wnloading new images check the option Erase_EFS The calibration data user contents media and module are erased Only calibration data is kept when NV backup restore is checked The user contents and file system physically are wiped out Keep All Contents Maintain user data including WAP AD DRM E mail Play lists and images when downloading a new S W images User data stated above are maintained if this...

Page 90: ...GE Internal Use Only 5 Downloading Select the image folder where all the image files are located by clicking on the Browse The folder name shall be different from that of the folder name in the snapshot The folder name indicates the path where the image files are located 5 2 2 Choosing image files ...

Page 91: ...automatically load images accordingly Also you can select images by manually For instance select the path of AMSS Modem Image file by clicking on the Browse button The selected AMSS image will be downloaded to the handset from the path directory in the PC Make sure that you have chosen correct file In case of wrong AMSS Modem file is selected the phone may not work The file name shall be different...

Page 92: ...y 5 Downloading 5 2 2 Choosing image files If NV restore is failed then the NV Data nv2 is erased permanently In this case choose the desired NV file to be downloaded on the handset To enable this simply check the box or select the NV file from the LGMDP installation directory by clicking on the Browse button Example ...

Page 93: ...oading 5 2 2 Choosing image files Click on the START button to start downloading A summary of the selected images and option information window will be displayed Click on the No button if this is not the setting you are downloading for Otherwise click on the Yes button to continue downloading selected image file with options ...

Page 94: ...vided to allow the testing of the integrity of the DZ image by checking a hash code of every included file DZ does not allowing extracting or creating zip archive with other public opened archive tool such as WinZip or Alzip To download DZ image simply click on the DZ button Select dz image path where dz image file is located by clicking on the Browse button Click on the Start Button to start down...

Page 95: ...ding 5 2 4 Downloading This message box informs that 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 ...

Page 96: ...ervice purposes LGE Internal Use Only 5 Downloading 5 2 4 Downloading Downloading the AMSS modem image Rebooting 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 ...

Page 97: ...right reserved Only for training and service purposes 5 Downloading 5 2 4 Downloading Rebooting the handset and re establishing the connection Erasing the existing directories and files before downloading the selected Media image Downloading Media image in progress ...

Page 98: ...ctronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 5 Downloading 5 2 4 Downloading Downloading Module image in progress Rebooting handset Downloading process has completed successfully ...

Page 99: ...r training and service purposes 5 Downloading 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 5 2 5 Tools ...

Page 100: ...d PWR red keys and then try to download all the images up to AMSS In the emergency mode you can not download media or module image The phone supports a special mode called emergency mode In this mode minimum units for downloading is running so that users can download the images again in case of emergency situation AMSS modem Media and Module images can not be running in this mode The below dialog ...

Page 101: ...cking on the Browse button Make sure that you have chosen the right image file After choosing valid images then click on the Start button to start downloading selected images The selected image will be downloaded to the handset from the path directory in the PC After downloading images successfully it will boot to normal mode 5 3 1 When the phone does not work ...

Page 102: ...LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 5 Downloading Snapshot showing the NV Restore error Next slide shows the remedial procedure to adopt 5 3 2 NV Restore Error ...

Page 103: ...ll right reserved Only for training and service purposes 5 Downloading Connect the handset and Press the Connect button in the Select Port window Enable state in the window indicates that the Phone has been detected and is ready to download 5 3 2 NV Restore Error ...

Page 104: ...rowse Select the LGMDP installation directory and a list of NV Backup files nv2 will be shown These nv files were saved every time NV Backup option was selected and the name of the nv file is determined based on the time when NV Backup was done Choose the desired NV file to be downloaded on the handset and click on Start 5 3 2 NV Restore Error ...

Page 105: ...e cal mode after completing download you must do NV restore and image media and module download 3 The NV data saved at LGMDP folder as following format 5 4 Caution D LGMDP 004400 01 429926 _COM14_ LGMDP folder name IMEI number Port number 4 Recommended that the Module and Media Image have to be downloaded at the same time 5 Erase EFS option will erase everything media module nv items and user data...

Page 108: ..._EGSM_RX2 GND3 GSM850_RX_EGSM_RX1 GND4 GND5 WCDMA_850 GND6 WCDMA_1900 GND7 WCDMA_2100 GSM850_EGSM_TX PCN_PCS_TX D D V 1 L R T C 2 L R T C 3 L R T C 4 L R T C 8 2n L104 2 1 B7696 FL106 1950 MHz 2140 MHz 9 5 7 4 1 2 8 3 6 ANT TX_IN RX_OUT2 GND1 RX_OUT1 GND2 GND4 GND3 GND5 10n C105 C104 1p DNI L125 2 1 ANT102 ANTENNA_PAD ANTENNA_PAD ANT101 10p C164 C165 10p C166 1u 10p C167 1n L126 VREG_MSMP_2 6V 18p...

Page 109: ... D 2 C N D 3 C N D 4 C N D 0 0 1 _ F R _ A _ D N G 1 0 1 _ F R _ A _ D N G 2 0 1 _ F R _ A _ D N G 3 0 1 _ F R _ A _ D N G 5 C N D G I D _ D N G L L P M _ D N G 1 F R _ D N G R K P S _ D N G 2 F R _ D N G C M S M _ D N G O X C T _ D N G 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 L K J I H G F E D C B A L K J I H G F E D C B A 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 p 7 2 2 0 2 C 1 R201 VPWR 0 R203 VREG...

Page 110: ... _ D N G 7 1 _ G I D _ D N G 8 1 _ G I D _ D N G 9 1 _ G I D _ D N G 0 2 _ G I D _ D N G 1 2 _ G I D _ D N G 2 3 _ F R _ A _ D N G 3 3 _ F R _ A _ D N G 4 3 _ F R _ A _ D N G 5 3 _ F R _ A _ D N G 6 3 _ F R _ A _ D N G 7 3 _ F R _ A _ D N G 2 2 _ G I D _ D N G 3 2 _ G I D _ D N G 4 2 _ G I D _ D N G 5 2 _ G I D _ D N G 6 2 _ G I D _ D N G 7 2 _ G I D _ D N G 8 3 _ F R _ A _ D N G 9 3 _ F R _ A _ D...

Page 111: ...0 5 1 0 2 0 S 8 1 C L V E 3 0 4 A V EVLC14S02050 VA404 C411 100n 1 0 4 D Z F L 2 1 D S P C412 100n K 3 3 0 1 4 R FL401 NFM21PC105B1A3 4 3 2 1 IN OUT G1 G2 5 0 4 A V 5 1 0 2 0 S 8 1 C L V E NUS3065MUTAG U402 5 4 6 3 7 2 8 1 9 DRAIN_THERMAL IN VCC GND OUT CNTRL GATE DRAIN SRC K 0 5 1 1 1 4 R 6 0 4 A V 3 0 0 2 0 S 8 1 C L V E VREG_MSME_1 8V TP401 TP 20K R412 7 0 4 A V 3 0 0 2 0 S 8 1 C L V E EVLC18S0...

Page 112: ...A R K 0 0 1 8 7 6 5 4 3 2 1 KEYPAD_BUTTON KB506 KB507 KEYPAD_BUTTON 12p C506 EVLC14S02050 VA504 5 0 5 A V 0 5 0 2 0 S 4 1 C L V E 27 R505 KEYPAD_BUTTON KB508 C507 10p KB509 KEYPAD_BUTTON KB510 KEYPAD_BUTTON KEYPAD_BUTTON KB511 VREG_MSMP_2 6V VA506 EVLC14S02050 7 0 5 A V 0 5 0 2 0 S 4 1 C L V E 0 5 0 2 0 S 4 1 C L V E 8 0 5 A V KEYPAD_BUTTON KB512 6 0 5 R K 0 0 1 C508 47p C510 10u KB513 KEYPAD_BUTT...

Page 113: ... 72 9 73 8 74 7 75 6 76 5 77 4 78 3 79 2 80 1 G1 G2 G3 G4 1u C604 ICVE10184E150R500FR FL607 15pF 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 ICVE10184E150R500FR 15pF FL608 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 V 8 1 _ M A C _ O D L U601 RT9011 MGPQW 9 5 4 6 3 7 2 8 1 VIN VOUT1 ...

Page 114: ...W P V CN102 04 6293 035 000 829 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 LCD_LDO_1 8V K 7 4 5 0 1 R 19 217UTD_S887 2_TR8 LD103 2 2u C108 EVLC14S02050 VA110 LD104 19 217UTD_S887 2_TR8 19 217UTD_S887 2_TR8 LD102 WLED_1 WLED_1 WLED_2 WLED_2 WLED_3 WLED_3 LCD_IF 2 LCD_IF 2 LCD_IF 1 LCD_IF 1 LCD_VSYNC LCD_VSYNC EBI2_OE_N EBI2_OE_N EBI2_WE_N EBI2_WE...

Page 115: ...INOUT_B2 INOUT_A3 INOUT_B3 INOUT_A4 INOUT_B4 1 G 2 G 7 5pF EVRC18S03Q015010R FL104 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 EVRC18S03Q015010R FL102 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 EBI2_DATA 7 EBI2_DATA 7 EBI2_DATA 6 EBI2_DATA 6 EBI2_DATA 5 EBI2_DATA 5 I2C_SCL_BL ...

Page 120: ... 3 0 5 U 5 0 5 R CN301 1 0 5 B K 5 1 5 B K 8 0 5 B K 1 1 5 B K 3 0 5 B K 2 1 5 B K 6 0 5 B K 3 0 5 A V 2 0 5 R LD5 02 R501 R513 R512 VA506 VA501 VA504 VA509 R514 R507 C507 6 0 5 R R510 VA502 VA508 VA507 R508 R509 3 0 5 C LD5 01 4 1 5 B K 121 9 PCB LAYOUT LGE Internal Use Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes U503 BU52031NVX Abnormal operat...

Page 121: ...157 L105 C174 011C 221C C105 571C ANT104 303PT C255 205BF 015AV 104J C533 C532 505C 905C 035C 742C 412C 452C 252C 302R 301L C112 L104 251C C161 C102 C111 201L C104 ANT101 ANT103 503PT 651C 101C 771C 721L C170 821L 201X C169 C168 101PT 631C C125 731C 111L 011L 911C 141C 851C 541C 041C 931C 521L 301R C181 551C 101R 411L 101U FL107 171C C135 C159 C103 C120 FL108 451C 561C 271C R112 C167 C164 U103 L12...

Page 122: ...t reserved Only for training and service purposes w v W U X X W X Z W W l w z l r W _ Y n 1 0 1 B K 7 0 1 B K 3 0 1 B K 8 0 1 B K 6 0 1 B K 1 1 1 B K 9 0 1 B K 0 1 1 B K 4 0 1 B K 2 0 1 D L 3 0 1 D L 5 0 1 B K 4 0 1 D L 1 0 1 D L 2 0 1 B K LD101 104 Abnormal operation No Key Light on ...

Page 123: ... z l r W _ Y n 26 50 25 501AV 1 0 1 U 2 0 1 N C 8 0 1 C VA102 VA101 VA103 VA107 CN101 801AV 401AV VA110 601R 601AV C106 7 0 1 C 501R C101 301C C104 C105 2 0 1 C 201R 101M 901AV 1 0 1 A R CN101 B to B Connector Abnormal operation No LCD on U101 RT9367C Abnormal operation No LCD Backlight on No LCD Power on CN102 B to B Connector Abnormal operation No LCD On ...

Page 124: ... LAYOUT LGE Internal Use Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes w v W U X X W W Z X W j w z l k p s z m W _ Y n 26 50 0 8 25 1 4 0 4 0 0 1 N C S100 CN101 ...

Page 125: ...al Use Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes v i W U X X W W Z X W j w z l k p s z m W _ Y n 101LF 301LF 001VCR 101BV 001D 201LF 401LF FB110 VA111 FB111 VA110 001C 001AV ...

Page 126: ...opyright 2009 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 10 CALIBRATION 10 CALIBRATION 10 1 Configuration of directory 10 1 1 Configuration of directory ...

Page 127: ...ent files Port configuration Loss adjust Config Common dll files XML Data I O Auto Test Logic Tachyon Logic Control Communication Common Exe file and MFC dll UI dll is present Tachyon Description Folder It is described a testing procedures MODEL NAME _Sequence XML It consists of default values It is written when cal auto is begun MODEL NAME _NV INI There are imformations to call MODEL NAME _CallSe...

Page 128: ...ore start calibration auto test a Click the icon in tool bar Then You can make a choice of GU280 for loading cfg files before run b Select model name and then do double click the buyer name You will see configuration files loaded in the right window with PASS information above Example of selection of model name 10 2 1 Model selection 10 2 How to use Tachyon ...

Page 129: ...r training and service purposes 10 CALIBRATION a Click calibration auto test button in Tool bar b Calibration auto test will be executed in order 1 Precede Action NV write Test command send 2 RF Calibration 3 RF Auto test 4 After action Phone reset Change UE to AMSS 10 2 2 Start cal auto ...

Page 130: ... Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes 1 2 4 5 6 7 8 9 10 11 12 13 15 17 19 20 22 23 24 29 32 33 34 35 36 37 28 27 26 25 18 16 55 14 46 45 44 43 41 40 3 38 48 47 52 53 51 50 54 59 58 60 49 42 39 56 57 61 62 63 64 30 31 21 ...

Page 132: ...AGE APAY0136701 GU280 ORE EU1 ORG UB MB_Seal 1200ea Packing WITHOUT COLOR 3 APLY00 PALLET ASSY APLY0003901 EU1 TYPE_Body SW Cap EU AL_1200EA WITHOUT COLOR 4 MPCY00 PALLET MPCY0012403 COMPLEX empty DARK BLUE 3 MBAD00 BAG VINYL PE MBAD0005204 COMPLEX empty Without Color 3 MLAC00 LABEL BARCODE MLAC0004541 PRINTING empty Without Color 3 MLAP LABEL UNIT MLAP0001138 COMPLEX empty WITHOUT COLOR 3 MLAZ01 ...

Page 133: ... MIDZ0236001 COMPLEX empty WITHOUT COLOR 5 MIDZ00 INSULATOR MIDZ0236101 COMPLEX empty WITHOUT COLOR 33 5 MPBJ00 PAD MOTOR MPBJ0069201 COMPLEX empty BLACK 29 5 MPBM00 PAD RECEIVER MPBM0032101 COMPLEX empty WITHOUT COLOR 30 5 MPBU00 PAD CONNECTOR MPBU0078801 COMPLEX empty BLACK 28 5 MPBU01 PAD CONNECTOR MPBU0078901 COMPLEX empty BLACK 26 5 MPBZ00 PAD MPBZ0255501 COMPLEX empty BLACK 27 5 MTAZ00 TAPE ...

Page 134: ...4 MGAZ01 GASKET MGAZ0082101 COMPLEX empty WITHOUT COLOR 24 4 MGAZ02 GASKET MGAZ0082301 COMPLEX empty WITHOUT COLOR 35 4 MIDZ00 INSULATOR MIDZ0222801 COMPLEX empty WITHOUT COLOR 23 4 MIDZ01 INSULATOR MIDZ0235301 COMPLEX empty WITHOUT COLOR 25 4 MTAB00 TAPE PROTECTION MTAB0335701 COMPLEX empty WITHOUT COLOR 2 4 MTAB01 TAPE PROTECTION MTAB0362301 COMPLEX empty WITHOUT COLOR 1 6 ADCA00 DOME ASSY METAL...

Page 135: ... ohm 1005 DC Res 0 6ohm R C 500mA 7 FB111 FILTER BEAD CHIP SFBH0009801 600 ohm 1005 DC Res 0 6ohm R C 500mA 7 VA100 VARISTOR SEVY0001001 14 V SMD 50pF 1005 7 VA110 VARISTOR SEVY0003801 18 V SMD 7 VA111 VARISTOR SEVY0003801 18 V SMD 6 SACD00 PCB ASSY FLEXIBLE SMT TOP SACD0077001 7 CN100 CONNECTOR BOARD TO BOARD ENBY0042801 80 PIN 0 4 mm ETC 0 40MM empty MALE SMD R TP 7 CN101 CONNECTOR BOARD TO BOAR...

Page 136: ... R TP 7 R106 RES CHIP MAKER ERHZ0000467 330 Kohm 1 16W J 1005 R TP 7 RA101 RES ARRAY R ERNR0000401 47 ohm ohm 8 PIN J 1 32 W SMD R TP 7 U101 IC EUSY0344402 QFN 20 R TP 4CH 2LDO 3X3 IC Sub PMIC 7 VA101 VARISTOR SEVY0001001 14 V SMD 50pF 1005 7 VA102 VARISTOR SEVY0001001 14 V SMD 50pF 1005 7 VA103 VARISTOR SEVY0001001 14 V SMD 50pF 1005 7 VA104 VARISTOR SEVY0001001 14 V SMD 50pF 1005 7 VA105 VARISTO...

Page 137: ... ELCH0004726 1 5 nH J 1005 R TP 6 C103 CAP CHIP MAKER ECZH0000813 100 pF 50V J NP0 TC 1005 R TP 6 C104 CAP CHIP MAKER ECZH0000802 1 pF 50V C NP0 TC 1005 R TP 6 C105 INDUCTOR CHIP ELCH0001041 10 nH J 1005 R TP PBFREE 6 C106 CAP CERAMIC CHIP ECCH0000143 1 nF 50V K X7R HD 1005 R TP 6 C107 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 6 C108 CAP CERAMIC CHIP ECCH0000155 10 nF 16V K X7R HD 1...

Page 138: ...000830 33 pF 50V J NP0 TC 1005 R TP 6 C144 INDUCTOR CHIP ELCH0001034 3 3 nH S 1005 R TP PBFREE 6 C145 CAP CHIP MAKER ECZH0001122 680 pF 50V K X7R HD 1005 R TP 6 C146 CAP CHIP MAKER ECZH0001122 680 pF 50V K X7R HD 1005 R TP 6 C147 CAP CERAMIC CHIP ECCH0000137 330 pF 50V K X7R HD 1005 R TP 6 C148 CAP CHIP MAKER ECZH0000846 8 2 pF 50V C NP0 TC 1005 R TP 6 C150 INDUCTOR CHIP ELCH0001035 4 7 nH S 1005 ...

Page 139: ...9 CAP CERAMIC CHIP ECCH0000161 33 nF 16V K X7R HD 1005 R TP 6 C202 CAP CHIP MAKER ECZH0000826 27 pF 50V J NP0 TC 1005 R TP 6 C203 CAP CERAMIC CHIP ECCH0005604 10000000 pF 6 3V M X5R TC 1608 R TP empty empty empty empty empty empty 0 8 mm 6 C204 CAP CERAMIC CHIP ECCH0000198 2 2 uF 6 3V M X5R TC 1005 R TP 6 C205 CAP CERAMIC CHIP ECCH0000198 2 2 uF 6 3V M X5R TC 1005 R TP 6 C206 CAP TANTAL CHIP ECTH0...

Page 140: ... C232 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 6 C233 CAP CERAMIC CHIP ECCH0005604 10000000 pF 6 3V M X5R TC 1608 R TP empty empty empty empty empty empty 0 8 mm 6 C234 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 6 C236 CAP CERAMIC CHIP ECCH0000182 0 1 uF 10V K X5R HD 1005 R TP 6 C237 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 6 C238 CAP CERAMIC CHIP ECCH...

Page 141: ...R ECZH0000803 2 pF 50V C NP0 TC 1005 R TP 6 C302 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 6 C303 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 6 C304 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 6 C305 CAP CHIP MAKER ECZH0001210 470 nF 10V Z Y5V HD 1005 R TP 6 C306 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 6 C307 CAP CHIP MAKER ECZH0003103 0 1 ...

Page 142: ...004904 1 uF 6 3V K X5R TC 1005 R TP 6 C428 CAP CERAMIC CHIP ECCH0000198 2 2 uF 6 3V M X5R TC 1005 R TP 6 C429 CAP CERAMIC CHIP ECCH0000115 22 pF 50V J NP0 TC 1005 R TP 6 C504 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 6 C505 CAP CHIP MAKER ECZH0001102 18000 pF 16V K X7R HD 1005 R TP 6 C506 CAP CHIP MAKER ECZH0000816 12 pF 50V J NP0 TC 1005 R TP 6 C508 CAP CERAMIC CHIP ECCH0000122 47 ...

Page 143: ...HIP SFBH0000903 600 ohm 1005 6 FB501 FILTER BEAD CHIP SFBH0009801 600 ohm 1005 DC Res 0 6ohm R C 500mA 6 FB502 FILTER BEAD CHIP SFBH0009801 600 ohm 1005 DC Res 0 6ohm R C 500mA 6 FL103 DUPLEXER DCN SDDY0005101 836 5 MHz 881 5 MHz 2 1 dB 2 7 dB 53 dB 49 dB 2 5 2 0 0 68 SMD SAW Rx balance type 881 5 869 to 894 836 5 826 4 to 846 6 2 7 2 1 2 5x2 0x0 68 DUAL SMD R TP 6 FL104 FILTER SAW SFSY0035101 195...

Page 144: ...Y0022102 6 ANGLE 2 54 mm Changed Metal shell 6 L101 INDUCTOR CHIP ELCH0004727 100 nH J 1005 R TP 6 L102 CAP CERAMIC CHIP ECCH0000117 27 pF 50V J NP0 TC 1005 R TP 6 L103 CAP CHIP MAKER ECZH0000810 9 pF 50V D NP0 TC 1005 R TP 6 L104 INDUCTOR CHIP ELCH0003838 8 2 nH J 1005 R TP MLCI 6 L105 CAP CHIP MAKER ECZH0000830 33 pF 50V J NP0 TC 1005 R TP 6 L106 INDUCTOR CHIP ELCH0004710 15 nH J 1005 R TP 6 L10...

Page 145: ...ER ERHZ0000201 100 ohm 1 16W F 1005 R TP 6 R108 RES CHIP MAKER ERHZ0000201 100 ohm 1 16W F 1005 R TP 6 R109 RES CHIP MAKER ERHZ0000504 68 ohm 1 16W J 1005 R TP 6 R110 INDUCTOR CHIP ELCH0005020 1 nH S 1005 R TP 6 R111 INDUCTOR CHIP ELCH0005015 6 8 nH S 1005 R TP 6 R112 RES CHIP MAKER ERHZ0000288 470 Kohm 1 16W F 1005 R TP 6 R113 RES CHIP MAKER ERHZ0000437 2 Kohm 1 16W J 1005 R TP 6 R114 RES CHIP MA...

Page 146: ...P MAKER ERHZ0000268 33 Kohm 1 16W F 1005 R TP 6 R411 RES CHIP MAKER ERHZ0000222 150 Kohm 1 16W F 1005 R TP 6 R412 RES CHIP MAKER ERHZ0000438 20 Kohm 1 16W J 1005 R TP 6 R413 RES CHIP MAKER ERHZ0000203 10 Kohm 1 16W F 1005 R TP 6 R414 RES CHIP MAKER ERHZ0000443 2200 ohm 1 16W J 1005 R TP 6 R415 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP 6 R416 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J ...

Page 147: ...D 50pF 1005 6 VA510 VARISTOR SEVY0003801 18 V SMD 6 VA511 VARISTOR SEVY0003801 18 V SMD 6 X101 VCTCXO EXSK0005704 19 2 MHz 1 5 PPM 40 pF SMD 32X25X0 9 SH240 VCTCXO Die shrinkage 4Pin Pb Free 19 2MHz 1 5PPM 2 8V 32 25 0 9 SMD R TP 6 X102 X TAL EXXY0026501 32 MHz 20 PPM 12 pF 50 ohm SMD 32 25 0 75 BTC4025 BT Chip Ref X Tal Pb Free 32MHz 20PPM SMD R TP 6 X201 X TAL EXXY0016601 32 768 KHz 20 PPM 9 pF ...

Page 148: ...hm 1 16W J 1005 R TP 6 R511 RES CHIP MAKER ERHZ0000451 27 ohm 1 16W J 1005 R TP 6 R512 RES CHIP MAKER ERHZ0000451 27 ohm 1 16W J 1005 R TP 6 R513 RES CHIP MAKER ERHZ0000451 27 ohm 1 16W J 1005 R TP 6 R514 RES CHIP MAKER ERHZ0000451 27 ohm 1 16W J 1005 R TP 6 RA501 RES ARRAY R ERNR0000404 100 Kohm 100 Kohm 8 PIN J 1 16W SMD R TP 6 U503 IC EUSY0362601 SSON004 4 R TP Hall IC IC CMOS 6 VA501 VARISTOR ...

Page 149: ...ption Part Number Spec Color Remark 3 SBPL00 BATTERY PACK LI ION SBPL0098201 3 7 V 900 mAh 1 CELL PRISMATIC 463450 INNERPACK WW 3 7 900 180 PRISMATIC 4 6X34X50 5 1X34X50 BLACK INNERPACK 61 3 SSAD00 ADAPTOR AC DC SSAD0033201 100 240V 5060 Hz 5 1 V 0 7 A CE AC DC ADAPTOR 90Vac 264Vac 4 75Vdc 5 25Vdc 700mA 5060 INLET 2P I O CONNECTOR 11 3 Accessory Note This Chapter is used for reference Part order i...

Search results

Summary of Contents for GU280

Reviews:

Related manuals for GU280

Brands by name

Popular brands

LG GU280, Service Manual

Search results

Summary of Contents for GU280

Reviews:

Related manuals for GU280

Brands by name

Popular brands