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Service Manual

Model : LG-T300

Internal Use Only

Service Manual

LG-T300

Date: August, 2010 / Issue 1.0

Содержание LG-T300

Страница 1: ...Service Manual Model LG T300 Internal Use Only Service Manual LG T300 Date August 2010 Issue 1 0 ...

Страница 2: ...Camera 58 3 14Touch Interface 60 3 15Vibrator Interface 61 4 TROUBLE SHOOTING 63 4 1 RF Component 63 4 2 RXTrouble 64 4 3TXTrouble 68 4 4 Power OnTrouble 72 4 5 ChargingTrouble 75 4 6VibratorTrouble 77 4 7 LCDTrouble 80 4 8 CameraTrouble 84 4 9 Speaker ReceiverTrouble 88 4 10 EarphoneTrouble 91 4 11 MicrophoneTrouble 94 4 12 SIM Card InterfaceTrouble 96 4 13 Micro SD uSD Trouble 98 4 14 BluetoothT...

Страница 4: ...cessed 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 service until repair can be done A telephone company may ...

Страница 5: ...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 ground themselves by using a wrist strap when exchange s...

Страница 6: ...requency 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 watt dBm Digital Communication System DCS Digital to Analo...

Страница 7: ...mitter 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 Public Switched Telephone Network PSTN Phase Locked Lo...

Страница 8: ...nd by time Up to 350 hours Paging Period 5 RSSI 85 dBm Charging time Approx 2 5 hours RX Sensitivity GSM EGSM 109dBm DCS 109dBm TX output power GSM EGSM 32 3dBm Level 5 DCS PCS 29 5dBm Level 0 SIM card type 3V 1 8V Display MAIN 2 4 TFT 240 Ý 320 pixel 262K Color Status Indicator Send Key End Key Cancel Key Volume Up Down Key PWR Key ANT Internal EAR Phone Jack Yes PC Synchronization Yes Speech cod...

Страница 9: ...nly for training and service purposes 2 PERFORMANCE XWVX 2 SYSTEM SPECIFICATION Travel Adapter Yes Speaker Receiver 18x12Ȱ Speaker Receiver MIDI SW MIDI Mono SPK Item Feature Comment Camera 1 3M FF Bluetooth FM Radio Bluetooth version 2 1 76 108MHz supported 18x12Ȱ Speaker Receiver ...

Страница 10: ...k 20 degrees 3 Frequency Error 0 1 ppm 4 Power Level Level Power Toler Level Power Toler 6 31dBm ധ3dB 14 15dBm ധ 3dB 7 29dBm ധ3dB 15 13dBm ധ 3dB 8 27dBm ധ3dB 16 11dBm ധ 5dB 9 25dBm ധ3dB 17 9dBm ധ 5dB 10 23dBm ധ3dB 18 7dBm ധ 5dB 11 21dBm ധ3dB 19 5dBm ധ 5dB 12 19dBm ധ3dB GSM850 EGSM 5 33dBm ധ2dB 13 17dBm ധ 3dB Level Power Toler Level Power Toler 1 28dBm ധ3dB 9 12dBm ധ 4dB 2 26dBm ധ3dB 10 10dBm ധ 4dB...

Страница 11: ...5 200 30 250 33 400 60 600 1 200 60 1 200 1 800 60 1 800 3 000 63 3 000 6 000 65 6 000 71 GSM850 EGSM Offset from Carrier kHz Max dBc 100 0 5 200 30 250 33 400 60 600 1 200 60 1 200 1 800 60 1 800 3 000 65 3 000 6 000 65 6 000 73 DCS PCS 6 Output RF Spectrum due to switching transient GSM850 EGSM Offset from Carrier kHz Max dBm 400 19 600 21 1 200 21 1 800 24 Item Description Specification 2 SYSTE...

Страница 12: ...nt Offset from Carrier kHz Max dBm 400 22 600 24 1 200 24 1 800 27 7 Spurious Emissions Conduction Emission Status 8 Bit Error Ratio GSM850 EGSM BER Class II 2 439 102 dBm DCS PCS BER Class II 2 439 100 dBm 9 RX Level Report Accuracy 3 dB 10 SLR 11 3 dB 11 Sending Response 300 12 1 000 6 2 000 6 3 000 6 Frequency Hz Max dB Min dB 100 200 4 000 3 400 9 0 0 4 4 12 0 0 4 12 RLR 4 3 dB DCS PCS 2 SYSTE...

Страница 13: ... 14 STMR 17 dB Mean that Adopt a straight line in between 300 Hz and 1 000 Hz to be Max level in the range 15 Stability Margin 6 dB 20 10 0 7 dB to ARL dB Level Ratio dB 35 30 10 30 7 33 3 33 7 31 7 17 5 22 5 25 5 16 Distortion 17 Side Tone Distortion Three stage distortion 10 18 System frequency 13 MHz tolerance 2 5 ppm 19 32 768KHz tolerance 30 ppm 20 Ringer Volume At least 55 dBspl under below ...

Страница 14: ...isplay 2 1 1 0 Battery Bar Number Voltage 3 3 2 3 71 0 05 V 23 Battery Indicator 24 Low Voltage Warning Blinking Bar 3 45 0 05V Call 1 time per 1 minute Receiver 3 45 0 05V Standby 1 time per 3 minute Speaker 25 Forced shut down Voltage 3 35 0 05V 27 Battery Type Lithium Ion Battery Standard Voltage 3 7 V Battery full charge voltage 4 2 V Capacity 900mAh 28 Travel Charger Switching mode charger In...

Страница 15: ...erved Only for training and service purposes 3 TECHNICAL BRIEF 3 TECHNICAL BRIEF X VX 3 TECHNICAL BRIEF 3 1 Digital Main Processor Figure 3 1 1 X Gold tm 213 Hardware Block Diagram 3 TECHNICAL BRIEF 3 1 Digital Main Processor Figure 3 1 1 X Gold tm 213 Hardware Block Diagram ...

Страница 16: ...d direct conversion receiver Tri Quad band possible with external circuitry Fully integrated digital controlled X0 Additional buffer for 2 external system clocks Fully digital RF Synthesizer incl ȭȟ Transmitter 3 1 3 Baseband DSP 156 MHz TeakLite MCU ARM1176 208 MHz MCU RAM 3 00Mbit Memory I F 512 Mbit Modem GPRS class 12 RX TX CS1 CS4 EGPRS class 12 RX MCS1 MCS9 TX MCS1 MCS4 Cipher Units A51 2 3 ...

Страница 17: ...25 bit address bus 512 Mbit 16 bit data bus 1 8V 2 8V support Flash RAM NOR Type Serial Flash SPI and SPI 4 Parallel Flash Page Burst Mode 16 bit Demultiplexed 16 bit AD multiplexed 16 bit AAD multiplexed iNAND Type e g oneNAND Memory card SD MMC card interface with 1 or 4 data lines 3 1 5 Connectivity 3xUSIF configurable either as SPI or UART I2C I2S Interfaces 1 8V Direct U SIM 1 8 3V USB2 0 up ...

Страница 18: ... ȳ Digital microphone supported Differential microphone inputs 3 1 7 FM Radio Integrated FM radio FM Stereo RDS Receiver Sensitivity 2 ɆV EMF Support for US EU bands Stereo recording 3 1 8 Power Management Direct to Battery Connection LDOs incl capless DC DC step down converter DC DC step up for white LED supply Battery Type Li Polymer Charging control Battery temperature Watchdog protection Start...

Страница 19: ...t processing Scaling Rotation 90 steps Mirroring Overlay with alpha blending Color conversion YUV RGB 2D vector graphics Lines filled rectangles Bit block transfer e g sprites scrolling antialiased bitmap fonts 3 1 10 Camera 1 3 Mpxls FF Frame Rate 15 UXGA 30 SVGA 39 MHz Pixel Rate 15 fps 1 3 Mpx full resolution 3 1 11 Video Capabilities Video Decoding MPEG 4 H 263 QCIF 30 fps QVGA 15fps Video Enc...

Страница 20: ... a typical standard phone Figure 3 2 1 Block Figure of the PMU Modules X Gold tm 213 3 TECHNICAL BRIEF DC DC Step Down Converter for 1 8V SD1 The DC DC converter generates a 1 8V supply rail This voltage rail is used to supply main parts of the system like the digital core of the chip via LDO LCORE some parts of the mixed signal macro parts of the RF macro and the external memory if a 1 8V memory ...

Страница 21: ...te machine and analog parts like ADC sense amplifier etc LUSB The LUSB LDO generates the supply for the USB transceiver output driver and input If no USB interface is required LUSB can be used as general purpose LDO LAUX The LAUX generates VAUX It is a general purpose LDO and can be used for different functions depending on the phone application e g for the display or Camera LMMC The LMMC generate...

Страница 22: ... 23 Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 3 TECHNICAL BRIEF YZVX 3 TECHNICAL BRIEF Table 3 2 1 Power supply Domains without RF ...

Страница 23: ...sequence driven by the PMU state machine can be seen in Figure18 After enabling the reference HPGB and waiting for the settling time the battery voltage is measured and compared with the power on threshold If the battery voltage is high enough the SD1 DC DC converter and the LCORE LDO are started A timer ensures that the supply voltage will be stable before the DCXO is enabled The DCXO settling ti...

Страница 24: ...nics Inc All right reserved Only for training and service purposes LGE Internal Use Only 3 TECHNICAL BRIEF Y VX 3 TECHNICAL BRIEF Figure 3 2 1 First Part of the State Machine Running in Different Power Domains than the Second Part ...

Страница 25: ...Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes 3 TECHNICAL BRIEF Y VX 3 TECHNICAL BRIEF Figure 3 2 2 Second Main Part of the Startup State Machine in the VPMU Domain ...

Страница 26: ...ted and the battery is charged above the SYSONPRE voltage level the system will start up The PMU main state machine waits in the Check battery state until the battery voltage condition is fulfilled The charger state machine provides the necessary pre charge indication signal This pre charge signal is denounced in a small counter to have a stable signal This is important especially in half full wav...

Страница 27: ...ternal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes 3 TECHNICAL BRIEF Y VX 3 TECHNICAL BRIEF Figure 3 2 3 Start Up Sequence triggered by First Connect Event ...

Страница 28: ...nal This signal controls for example the ɆC subsystem and releases reset for the controller During normal start up the PMU releases the reset_pmu_n_o signal after entering the SYSTEM ON state At this time the resetout_o signal is high the RESET_N pad is not pulled low and therefore the reset_postscu_n_o signal follows the reset_pmu_n_o signal That means the ɆC reset will be released and the ɆC sta...

Страница 29: ...ring startup the PMU enables the DCXO After the system is running the DCXO is controlled by the SCU of the baseband by using the vcxo_enable signal This is handled by a dedicated logic in the PMU see Figure 21 As long as rf_sysclk_en_pmu the output of the PMU state machine is high vcxo_enable controls the rf_sysclk_en signal to the RF If rf_sysclk_en_pmu is low the DXCO is switched off independent...

Страница 30: ... means all PMU register are reset in OFF state For details about the SW reset see chapter External Reset Handling 3 2 9 Undervoltage Shutdown In active mode the PMU periodically measures the battery voltage using the ADC from the charger unit If the battery is measured to be below the programmable shut down level called SYSOFF the system changes to OFF mode This is done via the SHUTDOWN state of t...

Страница 31: ...er SD1 can be configured to change the output voltage to a lower value for additional power saving VCXO_enable is also used to deactivate the HPBG and setting LDO LPMU in the ultra low power mode In addition the DCXO is switched off by the VCXO_enable signal The VCXO_enable signal is also used to switch some LDO s software configured to sleep and or off mode or to change the output voltages of sai...

Страница 32: ...ation into load mismatch Additionally a VBATT tracking feature is incorporated to maintain switching performance as supply voltage decreases 3 TECHNICAL BRIEF ͽ Ͷ ͺΟΥΖΣΟΒΝ ΆΤΖ ΟΝΪ Z VX 3 3 1 Internal Block Diagram 3 3 FEM with integrated Power Amplifier Module RF7161 U401 Figure 3 3 1 RF7161 FUNCTIONAL BLOCK DIAGRAM 3 3 2 General Description The RF7161 is a quad band GSM850 EGSM900 DCS1800 PCS1900...

Страница 33: ...1 8n L407 12n C411 1 8n 22p L409 1 5n L405 33p C419 C418 33p 33p C417 C416 33p 4 7u C415 869M894M 925M960MHz FL401 10 5 6 3 7 2 9 4 8 1 IN_881_5 OUT_881_5 IN_942_5 OUT_942_5 GND1 GND2 GND3 GND4 GND5 GND6 3 3n L404 3 3n L403 1 2p C442 C413 1n 4 7u C412 1 8n C420 22p C410 68n L402 U401 12 1 1 0 1 9 8 7 13 6 14 5 15 4 16 3 17 2 8 1 1 9 1 0 2 1 2 2 2 3 2 G U L S _ D N G P M A R V E L B A N E _ X T 0 L...

Страница 34: ... digital predistortion of the AFC word is required This predistortion is performed by the linearization unit for crystal oscillator LUXO The LUXO calculates the corresponding DIG value according to the given AFC value Figure 3 4 1 Crystal Oscillator External Connection The X GOLDTM213 RF Subsystem contains a fully integrated 26 MHz digitally controlled crystal oscillator designed for 8 pF crystals...

Страница 35: ...MB8810 U100 3 5 1 GENERAL DESCRIPTION The PMB8810 RF subsystem is designed for dual band GSM voice and data applications GPRS class 12 The system can be configured to support one low band GSM850 or EGSM900 and one high band DCS1800 or PCS1900 A block diagram of the RF subsystem is given in Figure 3 4 1 Figure 3 5 1 Block DIAGRAM of RF Subsystem 3 TECHNICAL BRIEF ...

Страница 36: ...a matching without external high quality inductors By use of frequency dividers by 2 4 the LO frequency is derived from the RF frequency synthesizer The receive path is fully differential to suppress the on chip interferences and reduce DC offsets The analog chain of the receiver contains two LNAs low high band a quadrature mixer followed by an analog baseband filter and 14 bit continuous time del...

Страница 37: ...external components Up and down ramping is performed via the ramping DAC connected to VRAMP RF synthesizer The RF subsystem contains a fractional N sigma delta synthesizer for the frequency synthesis Respective to the chosen band of operation the phase locked loop PLL operates at twice or forth of the target signal frequency In receive operation mode the divided output signal of the digital contro...

Страница 38: ... for direct control of antenna switch modules enable to select RX and TX mode as well as low and high band operation An extra band select signal PABS for the power amplifier is used to support discrete PA and switching modules Time accurate power dissipation of the PA is achieved by the control signal PAEN A minor set of power amplifiers require a bias voltage to enhance power efficiency Support o...

Страница 39: ... BRIEF 3 5 2 4 Power Supply To increase power efficiency most parts of the RF subsystem are supplied by the DCDC converter situated in the PMU subsystem Conversion of the 1 8 V output voltage of the DCDC to the 1 3 V 1 4 V circuit supply voltages is achieved by several Low DropOut regulators LDO One embedded direct to battery LDO provides the 2 5 V supply voltage for the remaining circuits ...

Страница 40: ...ow voltage on a 16 bit data bus The flash memory device has a multi partition architecture with read while program and read while erase capability The device supports synchronous burst reads up to 108 MHz using ADV and CLK address latching legacy latching on some litho density combinations and up to 133 MHz using CLK address latching only on some litho density combinations It is listed below in th...

Страница 41: ...w power design In addition to voltage flexibility a dedicated VPP connection provides complete data protection when VPP is less than VPPLK A Status Register provides status and error conditions of erase and program operations One Time Programmable OTP registers allow unique flash device identification that can be used to increase flash content security Also the individual block lock feature provid...

Страница 42: ...ted radio transceiver that has been optimized for use in 2 4GHz Bluetooth Wireless systems It has been designed to provide low power robust communications for applications Operating in the globally available 2 4GHz unlicensed ISM band It is fully compliant with the Bluetooth Radio Specification and enhanced data rate specification and meets or exceed the requirement to provide the highest communic...

Страница 43: ...ined with some integrated filtering no external filters are requires for meeting Bluetooth and regulatory harmonic and spurious requirements For integrated mobile handset applications where Bluetooth is integrated next to the celluar radio minimal external filtering can be applied to achieve near thermal noise levels for spurious and radiated noise emissions Using a highly linearized temperature c...

Страница 44: ...Processor XMM2130 provides SIM Interface Module The XMM2130 checks status Periodically During established call mode whether SIM card is inserted or not but it doesn t check during deep sleep mode In order to communicate with SIM card 3 signals SIM_DATA SIM_CLK SIM_RST And This model supports 1 8 3V SIM Card 3 TECHNICAL BRIEF ZD203 ZD201 R210 4 7K 2V85_VSIM 2V85_VSIM 0 1u C216 DNI C217 22p C218 ZD2...

Страница 45: ...n thickness wide viewing angle and low power consumption are critical factors and graphic displays are important 3 TECHNICAL BRIEF 2 2u C309 15pF FL303 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 VMMC C307 1u C308 1u VBAT R335 100K FL301 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...

Страница 46: ...rrent regulators An internal 6 bit DAC is used for backlight brightness control Users can easily configure up to 64 steps of LED current via the I2C interface control The RT9396 also comprises low noise low dropout regulators which provide up to 200mA of current for each of the four channels The four LDOs deliver 3 output accuracy and low dropout voltage of 200mV 200mA Users can easily configure L...

Страница 47: ...h LDO channel respectively where a 1 indicates selected and a 0 means not selected The B0 bit controls on off 1 0 mode for the selected LDO channel s Then in the third word bite C0 to C3 control a 16 step setting of LDO1 to LDO4 The voltage values are listed in Table 1 For LED dimming there are three operating modes Backlight I Backlight II and Backlight III to select from by writing respectively ...

Страница 48: ...rging and top off charging while continuously monitoring for input overvoltage and device over temperature The charge current and termination threshold are programming by simple one wire serial interfaces The charger status is indicated by two open drain outputs The AC adapter charger current is programming by external ISET1 resistor while USB charge current is programming either 90mA or 400mA thr...

Страница 49: ...ypad Interface Controller The Keypad Scan Module reduces the number of interrupts and polling through the processor and therefore reduces the power consumption The module is able to debounce and scan the external keypad matrix automatically without any software intervention After debouncing it generates an interrupt The interface controller contains information about the key or key combination tha...

Страница 50: ...ight 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 3 TECHNICAL BRIEF YVX Figure 3 11 3 Block Diagram and System Integration of the KPD 3 TECHNICAL BRIEF ...

Страница 51: ...ly It features a high quality stereo digital to analog path with amplifier stages for connecting acoustic transducers to X GOLD 213 In audio in path the supply voltage generation for electret microphones a low noise amplifier and analog to digital conversion are integrated in X GOLD 213 A more detailed functional description will be given in the following sections The audio front end itself can be...

Страница 52: ...d by certain control register settings Due to the new gain settings in the TX path the maximum input voltage is limited to 0 8 Vpp In both voiceband paths the value range for voice samples is confined to 97 5 i e to 31948 31947 or 8334H 7CCBH in X GOLD 213 On the TX path 83 1 s on the VTPDM line correspond to a 16 bit value of 7CCBH and 17 1 s correspond to a 16 bit value of 8334H at the digital f...

Страница 53: ...C outputs can be switched to several output buffers In audio in section there is an input multiplexer which selects either one of two differential microphone inputs to be connected to the low noise amplifier and analog pre filter The signals from the analog pre filter are input to a second order sigma delta analog to digital converter In addition there is a connection for FM radio playing Audio ou...

Страница 54: ...unipolar mode where an AC coupling of the headset might be needed or can work also in bipolor mode The differential loudspeaker driver can be used to drive a 8 ȳ loudspeaker As it is a class D amplifier the needed suppression of the higher harmonics of the switching signals has to be achieved by the external circuitry The buffers are designed to be short circuit protected 3 TECHNICAL BRIEF Figure ...

Страница 55: ...lifier and following pre filter with gain control a second order ȭȟ converter and a digital decimation filter It supports both standard GSM bandwidth 3 5 kHz and wideband bandwidth 7 kHz speech bands The differential input signal from the microphone first passes a low noise amplifier and following pre filter and an anti aliasing pre filtering stage achieving and overall variable gain ranging from ...

Страница 56: ...e supply VUMIC has a ultra low power mode where the current consumption is minimum whilst at the same time the noise performance is reduced For this purpose the VUMIC is directly supplied out of the VMIC regulator the Mic Buffer can be switched off and only the quiescent current of the VMIC regulator is present This mode can be used to supply a headset and allow accessory detection with highly red...

Страница 57: ...processing Scaling is used for downsizing the sensor data for either displaying them on the LCD or for generating data streams for MPEG 4 compression In general YCbCr 4 2 2 JPEG compressed images should use the full sensor resolution but they can also be downscaled to a lower resolution for smaller JPEG files Scaling also can be used for digital zoom effects because the scalers are capable of up s...

Страница 58: ... resize support Frame skip support for video e g MPEG 4 encoding Macro block line frame end capture error data loss interrupts and sync h_start v_start interrupts Programmable polarity for synchronization signals Luminance chrominance and chrominance blue red swapping for YUV input signals Maximum input resolution of 3 Mpixels 2048x1536 pixels Main scaler with pixel accurate up and down scaling to...

Страница 59: ...ace under control of the host processor The touch controller is operated by two operating mode with selectable one is the single operating mode and another is the automation operating mode During operates as single operating mode control of the ISA2000 and its functions is accomplished by writing simple write and read commands of serial interface for getting the selected input ADC conversion so us...

Страница 60: ... function Near rail to rail output swing under load ensures sufficient voltage drive for most ERM Eccentric Rotating Mass LRA Linear Resonant Actuator type actuators while the differential output drive allows the voltage polarity across the actuator to be reversed quickly Reversing the voltage gives the haptic motor driver the ability to drive an actuator both clock wise and counter clock wise The...

Страница 61: ...343 C342 C341 C340 U301 19 5 5 1 14 13 7 6 17 4 3 2 18 9 8 16 10 1 1 1 12 VDN YP D N G PWM CLK HEN SCL VDDP XP XN YN VDD LEN SADD SDA GAIN VDP T A B V INTB PGND TP307 C310 10n 100K R332 R333 100K VBAT 1u C339 CN301 4 3 2 1 VB301 2 1 TP306 1V8_VDD C313 2 2u C314 0 1u 2 2u C315 R310 DNI R311 DNI R312 4 7K 1V8_VDD I2C_SCL I2C_SDA VIB_PWM X X X X Y Y Y Y TOUCH_EN TOUCH_INT VIB_EN Touch Haptic Driver C...

Страница 62: ...y 4 TROUBLE SHOOTING 4 TROUBLE SHOOTING VX 4 1 RF Component 4 TROUBLE SHOOTING Figure 4 1 U101 Memory 1G NOR 256pSRAM PF38F6066M0Y3DE U102 Main Chip A GOLDRADIO PMB8810 XMM213 U401 GPRS QUAD TX MODULE RF7161 X101 Crystal 26MHz Clock DSX321G 26M 8PF SW401 RF Switch KMS 518 4 TROUBLE SHOOTING U102 U401 X101 U101 SW401 ...

Страница 63: ... purposes VX 4 2 RX Trouble CHECKING FLOW 4 TROUBLE SHOOTING START Re download SW or Do calibration again HP8960 Test mode 62 CH 7 level setting TCH 62CH 60dBm setting BCCH Spectrum analyzer setting Oscilloscope setting 1 Check Crystal Circuit 2 Check Mobile SW TX module 3 Check PLL Control 4 TROUBLE SHOOTING ...

Страница 64: ... No Crystal is OK See next page to check PLL Circuit Yes Replace X101 Figure 4 2 2 Figure 4 2 3 TP1 TP1 X101 TP1_1 pin 26MHz A11 B11 K12 K11 B2 A3 B3 A2 J8 H7 J7 H8 USIF2_TXD_MTSR USIF2_RXD_MRST USIF2_RTS_N USIF2_CTS_N USIF1_TXD_MTSR USIF1_RXD_MRST USIF1_RTS_N USIF1_CTS_N DPLUS DMINUS XOX XO 26MHz DSX321G 26M X101 2 1 3 4 USB_DP USB_DM UART_TX UART_RX BT_RESET LCD_BL_CTRL nLB nUB BT_RXD BT_TXD Clo...

Страница 65: ...C423 C422 1p VBAT 1n C421 L408 1 8n L407 12n C411 1 8n 22p L409 1 5n L405 33p C419 C418 33p 33p C417 C416 33p 4 7u C415 869M894M 925M960MHz FL401 10 5 6 3 7 2 9 4 8 1 IN_881_5 OUT_881_5 IN_942_5 OUT_942_5 GND1 GND2 GND3 GND4 GND5 GND6 3 3n L404 3 3n L403 1 2p C442 C413 1n 4 7u C412 1 8n C420 22p C410 68n L402 U401 12 1 1 0 1 9 8 7 13 6 14 5 15 4 16 3 17 2 8 1 1 9 1 0 2 1 2 2 2 3 2 G U L S _ D N G ...

Страница 66: ... Only 4 TROUBLE SHOOTING _VX CHECKING FLOW 4 TROUBLE SHOOTING Check TP1 of SW401 TP1 Signal is OK Replace Mobile SW SW401 Yes No Yes Mobile SW TX Module is OK Check PMB8810 U102 Control Signal is BS3 BS1 BS2 OK No Yes Check TP4 of U401 Replace TX Module U401 TP2 High Band TP3 Low Band Signal is OK No Yes EGSM Rx ...

Страница 67: ...ice purposes 4 TROUBLE SHOOTING VX 4 3 TX Trouble CHECKING FLOW 4 TROUBLE SHOOTING START Redownload SW or Do calibration again HP8960 Test mode 62 CH 7 level setting TCH 62CH 60dBm setting BCCH Spectrum analyzer setting Oscilloscope setting 1 Check Crystal Circuit 2 Check Mobile SW FEM 3 Check PLL Control ...

Страница 68: ...K No Crystal is OK See next page to check PLL Circuit Yes Replace X101 Figure 4 3 2 Figure 4 3 3 TP1 TP1 X101 TP1_1 pin 26MHz A11 B11 K12 K11 B2 A3 B3 A2 J8 H7 J7 H8 USIF2_TXD_MTSR USIF2_RXD_MRST USIF2_RTS_N USIF2_CTS_N USIF1_TXD_MTSR USIF1_RXD_MRST USIF1_RTS_N USIF1_CTS_N DPLUS DMINUS XOX XO 26MHz DSX321G 26M X101 2 1 3 4 USB_DP USB_DM UART_TX UART_RX BT_RESET LCD_BL_CTRL nLB nUB BT_RXD BT_TXD Cl...

Страница 69: ...1n C423 C422 1p VBAT 1n C421 L408 1 8n L407 12n C411 1 8n 22p L409 1 5n L405 33p C419 C418 33p 33p C417 C416 33p 4 7u C415 869M894M 925M960MHz FL401 10 5 6 3 7 2 9 4 8 1 IN_881_5 OUT_881_5 IN_942_5 OUT_942_5 GND1 GND2 GND3 GND4 GND5 GND6 3 3n L404 3 3n L403 1 2p C442 C413 1n 4 7u C412 1 8n C420 22p C410 68n L402 U401 12 1 1 0 1 9 8 7 13 6 14 5 15 4 16 3 17 2 8 1 1 9 1 0 2 1 2 2 2 3 2 G U L S _ D N...

Страница 70: ...ING YVX CHECKING FLOW 4 TROUBLE SHOOTING Check TP2 TP3 Mobile SW TX Module is OK Yes TP5 signal same as TP1 Replace SW401 No Yes Replace PMB8810 U102 TP2 High Band TP3 Low Band Signal is OK No Yes Check PMB8810 U102 Control Signal is BS3 TX EN BS1 BS2 OK No Yes Yes Check TP4 of U401 TP1 Signal is OK Replace TX Module U401 No EGSM Tx ...

Страница 71: ...ht 2010 LG Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING ZVX 4 4 Power On Trouble 4 TROUBLE SHOOTING Figure 4 1 TEST POINT VPMU VDDTRX VCORE VMMC VAUX VDDMS VDDXO VDDTDC VDD_VRF2 U102 VRF1 ...

Страница 72: ...1 P 4 1 L 7 R 7 T 6 T 7 P 1 D S _ D D V B F _ 1 D S 1 D S _ S S V W S _ 1 D S S M S S V P S T A B V U M P _ T A B V 1 O I D D V 2 O I D D V U B E _ D D V U M P V U M P _ S S V 1 E R O C _ S S V 2 E R O C _ S S V 3 E R O C _ S S V E R O C V E R O C D D V P C 8 V 1 D D V R S L S S V X R T S S V X R S S V 1 8 V 1 D D V P M A R V G I D _ S S V S M D D V O X D D V C D T D D V D M M D D V G E N D D V T ...

Страница 73: ...the level change into high of POWERKEY Check the voltage of The LDO outputs at U102 Is the phone power on The phone will Properly operating Charge or Change Battery Check the contact of power key Or dome switch Replace U102 VCORE 1 2V VPMU 1 2V VDDMS 1 3V VAUX 2 85V VMMC 2 85V VDD_RF2 2 5V VDDXO 1 3V VDDTDC 1 3V VRF1 1 8V Does it work properly Replace the main board YES YES YES YES NO NO NO NO NO ...

Страница 74: ...INT CIRCUIT 4 TROUBLE SHOOTING Figure 4 5 CN205 1 pin connected to TP01 U201 1 pin TP01 Connected to CN205 1 pin TP01 TP0 1 C201 0 1u 0 1u C205 1V8_VDD C206 1u 3 9K R204 VBUS_USB 1u C207 1 2K R209 VBAT 100K R212 U201 6 5 7 4 8 3 9 2 10 1 11 PGND VIN BATT ISET PGB GND1 CHGSB LDO GND2 IEOC EN_SET CHG_EN LDO_OUT nEOC 25V 10V CHARGING IC TP01 Connected to CN205 1 pin TP01 ...

Страница 75: ... 4 TROUBLE SHOOTING START Is I O Connector CN205 well soldered Check the voltage at Pin 1 of Charging IC TP01 5 1V YES YES Battery is charged YES Charging is properly operating NO NO NO Resolder the CN205 Pin 1 VBUS_USB The TA is out of order Change the TA Replace the main board Battery is charged NO Change the battery Charging is properly operating YES ...

Страница 76: ...010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 4 TROUBLE SHOOTING _VX 4 TROUBLE SHOOTING 4 6 Vibrator Trouble TEST POINT Figure 4 6 Vibrator PAD VB301 U301 TP307 ...

Страница 77: ...K VBAT 1u C339 VB301 2 1 TP306 1V8_VDD C313 2 2u C314 0 1u 2 2u C315 R310 DNI R311 DNI R312 4 7K 1V8_VDD I2C_SCL I2C_SDA VIB_PWM X X Y Y TOUCH_EN TOUCH_INT VIB_EN TP307 0 1 E 0 1 D 0 1 C 0 1 B 0 1 A 9 A 6 E 7 G 6 F 7 E 7 F 6 G K L C P _ F I C C N Y S H _ F I C C N Y S V _ F I C 2 T U O K L C D P _ F I C T E S E R _ F I C 0 N I _ P K 1 N I _ P K 2 N I _ P K 3 N I _ P K 4 N I _ P K C N Y S H _ M A C...

Страница 78: ...TING _WVX 4 TROUBLE SHOOTING CHECKING FLOW SETTING Enter the engineering mode and set vibrator on at vibration of BB test menu START YES NO Replace vibrator YES Vibrator Working well Check the soldering of vibrator Resolder the Pad YES Replace U302 NO Is the voltage at VB301 high Check the TP307 Is PWM Signal OK Replace U102 NO YES ...

Страница 79: ...or training and service purposes 4 TROUBLE SHOOTING _XVX UG yv islGzovv pun 4 7 LCD Trouble TEST POINT Figure 4 7 LCD FPCB CN203 FL301 LCD DATA 0 3 U302 TP07 LCD_BL_Ctrl TP06 LCD_nRESET MLED1 5 TP01 05 1 2 3 4 5 0 1 2 3 4 5 6 7 FL302 LCD DATA 4 7 TP302 LCD nCS TP303 LCD CD TP304 LCD nWR ...

Страница 80: ...OUT_A3 INOUT_B3 INOUT_A4 INOUT_B4 1 G 2 G 1V8_VDD CN303 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 ZD301 1V8_VDD LCD_CD LCD_DATA00 LCD_DATA01 LCD_DATA02 LCD_DATA03 LCD_DATA04 LCD_DATA05 LCD_DATA06 LCD_DATA07 LCD_VSYNC LCD_nWR LCD_nCS LCD_ID MLED1 MLED3 MLED2 MLED4 MLED5 LED_PWM LCD_nRESET LCD_IF LCD_IF B TO B INTERFACE TP6 2 2u C320 2 2u C...

Страница 81: ... LG Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING _ZVX 4 TROUBLE SHOOTING Waveform Graph 4 7 1 LCD Backlight Control Signal Waveform Graph 4 7 2 LCD Data Waveform LCD_BL_CTRL LCD_RS LCD_CS LCD_WR ...

Страница 82: ... Voltage Level of MLED1 5 TP1 5 is about Battery voltage LCD_BL_CTRL Signal TP07 is high Level NO YES YES Check the Waveform of EMI filter FL301 FL302 TP302 TP304 Resoldering or Replace U302 NO Resoldering EMI filter FL301 FL302 FL303 Does LCD work properly Replace LCD module LCD working well YES Is the connection of LCD FPCB with CN203 connector ok YES NO Reassemble FPCB with Main connector ...

Страница 83: ...and service purposes 4 TROUBLE SHOOTING _ VX 4 TROUBLE SHOOTING 4 8 Camera Trouble TEST POINT Figure 4 8 C320 CAM D 1V5 U302 C318 CAM IO 1V8 C319 CAM A 2V8 CAM_DATA 3 7 TP06 C330 CAM D 1V5 TP02 C331 CAM IO 1V8 TP01 C337 CAM A 2V8 TP05 R 322 R321 CAM_DATA 0 2 3 4 5 6 7 2 1 0 U101 TP04 R123 TP03 R122 ...

Страница 84: ...SYNC CAM_PCLK CAM_RESET CAM_VSYNC CAM_MCLK CAM_STANDBY I2C_SCL I2C_SDA CAM_DATA0 CAM_DATA1 CAM_DATA2 CAM_DATA3 CAM_DATA4 CAM_DATA5 CAM_DATA6 CAM_DATA7 C109 220n TP106 9 R 5 A 5 B 8 C 8 B 8 A F9 T1 A1 T16 A16 T10 P11 R10 ACD AGND VREF VSSRF2 NC2 VSSCORE4 NC4 VDDFS X R _ 1 S 2 I X T _ 1 S 2 I 0 A W _ 1 S 2 I L C S _ C 2 I A D S _ C 2 I F F O N O K 2 2 2 2 1 R 3 2 1 R K 2 2 1V8_VDD I2C_SCL I2C_SDA X ...

Страница 85: ...d service purposes 4 TROUBLE SHOOTING _ VX 4 TROUBLE SHOOTING Waveform Graph 4 8 1 I2C Data Waveform Graph 4 8 3 CAM_VSYNC vs CAM_HSYNC Waveform Graph 4 8 2 MCLK Waveform Graph 4 8 4 CAM_HSYNC vs CAM_PCLK Waveform I2C_DATA CAM_RESET CAM_MCLK CAM_MCLK 26MHz CAM_VSYNC CAM_HSYNC 48MHz CAM_HSYNC CAM_PCLK ...

Страница 86: ...f C337 2 8V C331 C330 1 8V is right LCD_BL_PWM signal is high Level Does Camera work properly Check the Waveform of I2C CLK TP03 I2C DATA TP04 CAM_MCLK TP05 26MHz Check the Waveform of Data pins on CN302 START Camera working well NO Reassemble camera connector with camera NO YES YES Resoldering or Replace U302 NO Replace U100 or Change the board YES YES YES NO Replace U102or Change the board NO Re...

Страница 87: ...All right reserved Only for training and service purposes 4 TROUBLE SHOOTING _ VX 4 9 Speaker Receiver Trouble 2 TROUBLE SHOOTING TEST POINT CN201 Speaker contact TP02 C239 TP01 C240 TP05 FB206 TP06 FB207 U102 BB chip U203 audio amp TP04 C228 TP03 C229 UU U U UU ...

Страница 88: ...U203 3 B A4 C3 C2 2 B D1 D3 4 D C1 A1 D2 1 B D5 A2 A5 A3 B5 4 B C5 4 C D N G OUT D D V P H CPVDD CPVSS CN HPL OUT S A I B IN2 HPR IN1 D D V S IN3 IN2 A D S IN1 IN3 CP L C S EPN I2C_SCL I2C_SDA HSL HSR EPP HP_LOUT HP_ROUT RCV_SPK_N RCV_SPK_P EAR_GND AUDIO AMP SUB SYSTEM SIGNAL DISTRIBUTOR TP01 N16 T14 R14 M16 M15 K15 T2 P9 J6 R3 M3 K4 A24 CS0_N CS1_N ADV_N WAIT_N ANAMON BFCLK0 FSYS_EN EPN EPP HSL H...

Страница 89: ...speaker Speaker Working well Check the Audio signal C228 C229 C239 C240 TP01 04 No Yes Change the U102 Replace Change speaker No Check the Audio signal FB206 FB207 TP05 06 No Replace Change the U203 Yes Yes START Mp3 Check the state of contact of speaker Speaker Working well Yes Check the Audio signal FB206 FB207 TP05 06 Yes Yes No No No Check the Audio signal C228 C229 C239 C240 TP01 04 CHECKING ...

Страница 90: ...erved Only for training and service purposes LGE Internal Use Only 4 TROUBLE SHOOTING YVX 4 10 Earphone Trouble TEST POINT 2 TROUBLE SHOOTING Headset MIC Resoldering points TP02 C230 TP01 C231 U203 audio amp FB303 Headset Earphone check points TP03 TP04 ...

Страница 91: ...M1 M6 R307 100 C312 0 022uF R305 47ohms DNI C344 Q201 S G D 1V8_VDD R304 DNI VA304 0 1uH L302 1V8_VDD 1M R336 0 R326 VAUX R334 100K 10pF C306 R301 2 2Kohms 1800 FB301 560pF C305 C304 560pF C303 2 2uF 0 022uF C302 270pF C301 VA303 L301 0 1uH VA302 100K R337 7 2 3 R 0 I N D 3 0 3 R HS_MIC_N HS_MIC_P HP_LOUT HP_ROUT JACK_DETECT HOOK_DETECT EAR_GND EAR_GND FM_ANT_1 3 5phi HEADSET FB2041800 FB2051800 0...

Страница 92: ...quipment to echo mode Change the earphone and try again NO Can you hear the sound from the earphone Set the audio part of the test equipment to PRBS or Continuous wave mode YES YES Resolder J301 NO YES Can you hear the sound from the earphone NO Change the earphone and try again NO Can you hear your voice from the earphone NO Resolder L301 L302 FB301 FB302 C230 C231 Resolder FB303 R301 R317 C303 C...

Страница 93: ...C P13 P12 T13 R13 T12 R12 N15 N16 T14 R14 M16 M15 K15 T2 P9 J6 R3 M3 K4 N4 T3 A22 A23 A24 CS0_N CS1_N ADV_N WAIT_N ANAMON BFCLK0 FSYS_EN EPN EPP HSL HSR LSN LSP MICN1 MICP1 MICN2 MICP2 VMIC VUMIC 1n C131 C140 DNI VHSMIC 47p C141 C142 47p DNI C143 EPN FSYS_EN MIC_N MIC_P HSL HSR EPP HS_MIC_N HS_MIC_P AD22 nWAIT MEM_CLK nADV nROM_CS nRAM_CS AD23 AD24 PLACE THESE CAPS NEAR BB IC MIC201 2 1 33n C224 R...

Страница 94: ... or GSM850 PCS mode CHECKING FLOW START NO YES Microphone will work properly YES Check the signal Level at each side of MIC201 Is it a few tens mV AC Check the soldering of C224 C219 TP02 03 Make a phone call then check R217 TP01 mic bias comes from U102 NO Change the microphone YES NO Re solder component 1 Check mic Bias signal line 2 Change the U102 Check microphone sound hole 2 TROUBLE SHOOTING...

Страница 95: ...G4 G2 G3 M8 A11 B11 K12 K11 DPLUS DMINUS XOX XO VSIM CC_IO CC_CLK CC_RST MMCI_CMD MMCI_DAT_0 MMCI_CLK MMCI_DAT_1 MMCI_DAT_2 MMCI_DAT_3 0 1u C130 uSD_CLK uSD_CMD uSD_D1 uSD_D3 SIM_CLK SIM_DATA SIM_RST USB_DP USB_DM uSD_D0 uSD_D2 TP01 TP04 ZD203 ZD201 R210 4 7K 2V85_VSIM 2V85_VSIM 0 1u C216 DNI C217 22p C218 ZD202 22p C222 J202 9 8 10 7 6 3 5 2 4 1 C1 C5 C2 C6 C3 C7 GND1 GND4 GND2 GND3 SIM_CLK SIM_D...

Страница 96: ...ort 3V or 1 8V NO Change the SIM Card This phone supports 3V or 1 8V SIM card YES Is Voltage at the pin 1 of J202 2 85V or 1 8V NO Change the U102 NO YES Resolder J102 YES Voltage output of VSIM LDO C130 TP01 Is 2 85V Change the SIM Card And try again Does it work Properly YES SIM card is properly working redownload SW Does it work Properly NO Change the main board NO YES SIM card is properly work...

Страница 97: ...s Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING VX 4 TROUBLE SHOOTING 4 13 Micro SD uSD Trouble TEST POINT Figure 4 14 S201 TP01 C249 TP02 R231 U U TP03 R201 U R213 uSD_D0 R203 uSD_D1 R222 uSD_D2 R222 uSD_D3 U U U U U102 ...

Страница 98: ...G XWWVX 4 TROUBLE SHOOTING CIRCUIT U U U U U U U TP01 TP02 TP03 S201 DAT1_2 DUMMY1 DAT0 VSS CLK VDD CMD CD_DAT3 DUMMY2 DAT2 DETECT_A DETECT_B DUMMY3 47K R221 R220 47K 47K R216 R213 47K 47K R203 C249 2 2u R231 100K 1V8_VDD DNI C226 1n C250 R201 30 VMMC R222 47K uSD_CLK uSD_CMD uSD_D1 uSD_D3 uSD_D0 uSD_D2 uSD_DET u SD CARD TP03 TP02 TP01 ...

Страница 99: ...oses 4 TROUBLE SHOOTING XWXVX 4 TROUBLE SHOOTING CHECKING FLOW Micro SD Card will work properly Micro SD Detect OK START Re attach or Replace S201 NO YES uSD_DET R231 Is High NO YES Check out MC_CLK TP03 Data D0 D3 Timing OK Re download SW NO YES YES Replace Micro SD Card Check the C249 TP01 2 8V YES NO Change U102 ...

Страница 100: ... right reserved Only for training and service purposes LGE Internal Use Only 4 TROUBLE SHOOTING XWYVX 4 TROUBLE SHOOTING 4 14 Bluetooth Trouble TEST POINT CIRCUIT Ant403 Figure 4 16 TP1_C443 TP2_C444 TP3_C429 TP5_C440 TP4_C441 TP7_C433 TP6_C432 ...

Страница 101: ...SCL HUSB_DN SDA TM2 SPIM_CLK PCM_IN SPIM_CS_N PCM_OUT PCM_CLK LPO_IN PCM_SYNC XIN UART_TXD XOUT UART_RXD UART_RTS_N GPIO_0 UART_CTS_N GPIO_1 1 C D D V HUSB_DP 6 S S V 5 S S V 4 S S V 3 S S V 2 S S V 1 S S V GPIO_6 GPIO_5 C443 1n 1 5n C444 C433 10n TP406 TP405 1u C428 AMAN301512ST01 ANT403 2 3 1 FEED GND2 GND1 2450MHz FL403 4 2 3 1 IN OUT GND1 GND2 TP401 TP402 TP403 TP404 C429 DNI C430 DNI 1V8_VDD ...

Страница 102: ...G CHECKING FLOW A condition is good START Check of BT Ant condition NO YES YES BT will work properly Check condition of matching components TP1 TP2 TP3 A condition is good NO YES Give the additory solder in TP1 TP2 TP3 Replace Ant403 Check Bias Voltage VAUX at TP6 1V8_VDD at TP7 YES NO Replace U402 CLK32K TP4 YES NO Replace U402 Check BT_CLK TP5 NO Replace U402 ...

Страница 103: ...ght 2010 LG Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING XW VX 4 TROUBLE SHOOTING 4 15 FM Radio Trouble TEST POINT Figure 4 17 TP1_L304 TP2_C325 CN205 J301 U203 TP3_R227 TP4_C223 TP5_C247 ...

Страница 104: ...1V8_VDD 1M R336 0 R326 VAUX R334 100K 10pF C306 R301 2 2Kohms 1800 FB301 560pF C305 C304 560pF C303 2 2uF 0 022uF C302 270pF C301 VA303 L301 0 1uH VA302 100K R337 7 2 3 R 0 I N D 3 0 3 R HS_MIC_N HS_MIC_P HP_LOUT HP_ROUT JACK_DETECT HOOK_DETECT EAR_GND EAR_GND FM_ANT_1 3 5phi HEADSET TP1 1 R218 1 R219 C223 0 1u VBAT 1V8_VDD C225 1 5n U202 B5 C5 2 B 1 C 2 C C3 A2 C4 D3 D1 D4 A1 B1 A3 B4 B3 A5 A4 D5...

Страница 105: ...work properly Check condition of matching components TP1 TP2 A condition is good NO YES Give the additory solder in TP1 TP2 Replace J301 Check Bias Voltage VDD_FMR C123 YES NO Replace U102 START Check of earless condition Check condition of CN205 connection YES A condition is good YES NO Replace CN205 NO Replace U202 A condition is good Check Bias Voltage MUIC U202 TP3 TP4 TP5 Check Input output s...

Страница 106: ...served Only for training and service purposes LGE Internal Use Only 4 TROUBLE SHOOTING XW VX 2 TROUBLE SHOOTING 4 16 Touch trouble TEST POINT U301 CN301 TP01 C313 TP02 C315 U101 TP04 R123 TP03 R122 TP05 C340 TP08 C343 TP06 C341 TP07 C342 U U U U U U U U ...

Страница 107: ... X X Y Y Y Y TOUCH_EN TOUCH_INT VIB_EN Touch Haptic Driver Ckts TP1 TP06 TP3 C109 220n TP106 9 R 5 A 5 B 8 C 8 B 8 A F9 T1 A1 T16 A16 T10 P11 R10 ACD AGND VREF VSSRF2 NC2 VSSCORE4 NC4 VDDFS X R _ 1 S 2 I X T _ 1 S 2 I 0 A W _ 1 S 2 I L C S _ C 2 I A D S _ C 2 I F F O N O K 2 2 2 2 1 R 3 2 1 R K 2 2 1V8_VDD I2C_SCL I2C_SDA X R _ M C P X T _ M C P PWRON S T C _ T B 6 T N I E 1 T N I E U301 19 5 5 1 ...

Страница 108: ...ECKING FLOW Yes Yes Yes No No Check CN301 and touch pannel contact Check touch signal C340 C341 C342 C343 TP05 08 Resolder or Replace U301 Contact well CN301 and touch pannel Check supply voltage of U301 C313 C315 TP01 02 Touch will work properly START Yes Resolder or Replace U102 Check I2C signal of U102 R122 R123 TP03 04 Resolder CN301 or replace touch pannal Yes ...

Страница 109: ... Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes 5 DOWNLOAD 5 DOWNLOAD k G GaG㜼 Onzt s pG GZUWP XUj G G GGaG㜼 iyh psGO tnP YUGzV G 㾡 aG㜼 OGw 㾡ㇵḴ㛺㢀UGP LG T300 LG T300 ...

Страница 110: ... 111 Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 5 DOWNLOAD kss 㾡 a 㜼 On Y_W kssP kssG 㾡 aG㜼 On Y_W UkssP LG T300 LG T300 LG T300 ...

Страница 118: ... 119 Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 5 DOWNLOAD LG T300 LG T300 LG T300 LG T300 LG T300 LG T300 LG T300 LG T300 LG T300 ...

Страница 119: ... 120 LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes 5 DOWNLOAD LG T300 LG T300 LG T300 LG T300 LG T300 LG T300 ...

Страница 122: ...ɻ Headset BAT Li Ion 900mAh BAT Li Ion 900mAh SIM Card BaseBand PMB8810 AGoldRadio Memory 1G NOR 256M pSRAM ANT Camera 2M FF LCD Interface µSD Card SAW Filter PAM Vibrator Charging IC LCD Backlight Charge Pump LDO 2 8V 1 5V 2 8V 2 8V MMCI LCD Backlight Bluetooth Module BT ANT UART PCM Control Signals I2C Camera Interface Camera Power Front key Side Key VCHG VBUS MUIC Audio AMP I2C Headset Call MP3...

Страница 124: ...C 2 I A D S _ C 2 I F F O N O VBAT 1V8_VDD C129 1u 0 1u C130 1n C131 C125 1u VDDXO C133 0 1u 220n C134 VBAT_RF2 VRTC R117 3 9K 220n C135 5 6K R118 18p C136 TP107 0 3 1 R K 8 6 TP109 TP110 C138 10u OJ102 C140 DNI 1V8_VDD 100K R120 VHSMIC R121 DNI 47p C141 C142 47p DNI C143 10K PT101 32 768KHz NX3215SA X102 2 1 CN101 9 8 7 6 5 4 3 2 1 K 2 2 2 2 1 R R127 10K 3 2 1 R K 2 2 1V8_VDD C144 1u R109 DNI Q10...

Страница 125: ...VSS CLK VDD CMD CD_DAT3 DUMMY2 DAT2 DETECT_A DETECT_B DUMMY3 KB202 KB203 C227 2 2u R233 220 CN203 3 2 1 47K R221 R220 47K 47K R216 R213 47K 47K R203 C249 2 2u R231 100K 1V8_VDD DNI C226 1n C250 R201 30 VMMC R222 47K 120 FB206 FB207 120 120 FB208 2 2u C245 0 1u C244 ZD205 680 R238 R237 680 680 R240 R239 680 2 4 2 R K 8 6 C228 1u C229 1u C230 1u C231 1u VBAT 1V8_VDD R223 0 2 2u C232 R224 20 20 R225 ...

Страница 126: ...I N D 3 0 3 R 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 VB301 2 1 ZD301 1V8_VDD 2 2u C320 2 2u C321 2 2u C322 2 2u C319 TP306 FM_LNA_EN 1V8_VDD C313 2 2u C314 0 1u 2 2u C315 R310 DNI R311 DNI R312 4 7K 1V8_VDD 100K R313 C316 0 1u 1u C318 1u C317 VBAT 1u C323 1u C324 U302 24 23 22 21 20 19 18 8 7 6 5 9 4 10 3 11 2 1...

Страница 127: ... 3n L404 1u C428 3 3n L403 1 2p C442 C413 1n 4 7u C412 1 8n C420 22p C410 68n L402 U401 12 1 1 0 1 9 8 7 13 6 14 5 15 4 16 3 17 2 8 1 1 9 1 0 2 1 2 2 2 3 2 G U L S _ D N G P M A R V E L B A N E _ X T 0 L R T C P G 1 L R T C P G GND1 T T A B V GND2 GPCTRL2 RFIN_LB GND9 GND3 GND8 RFIN_HB ANT GND4 RX4 5 D N G 6 D N G 7 D N G 1 X R 2 X R RX3 56p C409 DNI C408 AMAN301512ST01 ANT403 2 3 1 FEED GND2 GND1...

Страница 128: ...ctronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 8 BGA PIN MAP 8 BGA PIN MAP XYZVX 8 5 BGA PIN MAP Top View BGA IC pin check U101 ؼ Ball Diagram Top View PMB8810 A GOLDRADIO not in use ...

Страница 129: ...LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes 8 BGA PIN MAP XY VX BGA IC pin check U100 ؼ Ball Diagram Top View PF38F5060M0Y3DF not in use ...

Страница 130: ... service purposes CN301 R410 C448 Q401 FB303 1 0 1 T A B 1 0 1 N C 0 4 3 C 2 4 3 C 1 4 3 C 3 4 3 C KB201 KB202 3 1 4 L 8 0 4 R 7 4 4 C 7 0 4 R 2 0 3 D Z 5 2 3 C 4 0 3 L 6 0 4 R 9 0 4 R C445 C446 KB203 5 0 3 A V LGT300_MAIN_SPFY0229101 1 2_TOP CON301 Touch screen connector no touch screen BAT101 BackupCap RTC Reset ...

Страница 131: ...0 3 3 C 2 3 3 C 0 2 3 R L407 9 0 4 L 6 0 4 L FL401 7 2 4 C 8 1 4 C 7 1 4 C C419 C425 8 0 4 C 6 3 3 C 1 2 3 R 0 1 4 C C407 C404 9 2 3 C 7 0 3 R 3 0 3 U 7 3 3 C 4 3 3 C 5 0 3 R 1 3 3 C 8 1 2 C 1 0 2 D Z 6 1 2 C 3 0 2 D Z 7 1 2 C 7 0 1 P T L405 2 2 4 C 4 0 4 L 9 0 4 C L403 6 2 4 C 4 2 4 C 3 2 4 C 1 0 4 R 3 1 4 C 3 0 4 C R226 C401 1 0 3 B F C301 VA303 R318 1 0 3 L C327 L302 FB302 R304 VA304 TP201 9 2 ...

Страница 132: ...nfo 1 1 1 BattInfo 1 2 Bluetooth Test 1 2 1 Enter Test Mode 1 2 2 OnOff Test 1 2 3 Headset Test 1 2 4 BT Test1 1 2 5 BT Test2 1 2 6 Xhtml Compose Print 1 2 7 Xhtml Print Test 3 3 Layer1 Info 4 Call Timer 3 Eng Mode 6 MF TEST 5 Factory Reset 2 Model Version 3 1 Cell environ 3 2 1 Mobility 3 2 2 RadioRes 3 2 1 Gprs 6 2 1 BacklightOn 6 2 2 BacklightOff 6 3 1 Audio Test 2 1 Version 3 2 PS Layer Info 3...

Страница 133: ...explains how to examine the status of RX and TX of the model A Tx Test TX test this is to see if the transmitter of the phones is activating normally B Rx Test RX test this is to see if the receiver of the phones is activating normally 11 2 Setting Method 10 STAND ALONE TEST 1 Set COM Port 2 Check PC Bau Rate 3 Confirm EEPROM Delta file prefix name 4 Click Update Info for communicating Phone and T...

Страница 134: ...ectronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 11 STAND ALONE TEST XY VX 10 STAND ALONE TEST Not Connected ԛ Connected 4 Click Update Info for communicating Phone and Test Program ...

Страница 135: ...for training and service purposes 11 STAND ALONE TEST XY_VX 10 STAND ALONE TEST ԝ Ԝ Change ptest mood 5 For the purpose of the Standalone Test Change the Phone to ptest mode and then Click the Reset bar 6 Select Non signaling in the Quick Bar menu Then Standalone Test setup is finished ...

Страница 136: ...ternal Use Only 11 STAND ALONE TEST XY VX 1 Non signaling mode bar and then confirm OK text in the command line 2 Put the number of TX Channel in the ARFCN 3 Select Tx in the RF mode menu and PCL in the PA Level menu 4 Finally Click Write All bar and try the efficiency test of Phone 11 3 Tx Test Ԙ ԙ Ԛ ԛ ...

Страница 137: ...ST XZWVX 10 STAND ALONE TEST 11 4 Rx Test 1 Put the number of RX Channel in the ARFCN 2 Select Rx in the RF mode menu 3 Finally Click Write All bar and try the efficiency test of Phone 4 The Phone must be changed normal mode after finishing Test 5 Change the Phone to normal mode and then Click the Reset bar ԙ Ԙ Ԛ ԛ Ԝ Change normal mode ...

Страница 138: ...flash memory in GSM phone 12 AUTO CALIBRATION 11 AUTO CALIBRATION CM_GSM_MULTI Common Debug dll ocx Hot_Kimchi Model UI Multi_HK LG_UI_Ad6500_004 dll LG T300 Spec_LGT300_001 dwdio dll LG_RfCal_InfiKE000Ag_177 dll LG_RfTest_E5515C_122 dll xmm2130_eep008 cfg AutoSetup_LGT300_001 Ezlooks Procedure_LGT300_001 PwrSupply_Cmd script_001 Setup_Cal_Parameter_001 PwrSupply_Cmd DLL_PwrControlD dll Dll_Serial...

Страница 139: ... 3 dll ocx vsflex7l_ocx_regist Registration File for System use Windows XXX MFCD DLL Registration File for System use 12 3 4 HotKimchi HK_2G_41 exe Execute File HK_XX Æ XX is File Version Dll_EzLooksMQ_015 dll Communication Module with ezTray Installed In Local PC GuiTk115d dll control library ShieldBox_DllD dll Communication with Shield Box Support to Tescom TC 5952B 12 3 5 Model LG_RfCal_InfiKE0...

Страница 140: ...al 2 Set the Power Supply 4 0V 3 Set the 3rd 4th of DIP SW ON state always 4 Press the Phone power key if the Remote ON is used 1st ON state 1 Copy the file to C Cm_Gsm_Multi 2 Copy the files of Windows XXX MFCD DLL vsflex7l_ocx_regist to C Cm_Gsm_Multi dll ocx 3 Select MFCD DLL of your computer OS 4 Click on vsflex7l_ocx_regist 5 Click on Multi_HK reg 6 Connect as Fig 11 2 RS232 serial cable is c...

Страница 141: ...ll right reserved Only for training and service purposes 12 AUTO CALIBRATION XZ VX 9 Set PORT using RS232 cable that PC can communicate with the phone 11 AUTO CALIBRATION 10 Select LOGIC MODE that you want Logic mode 1 Calibration only 2 Auto test only 3 Cal Auto ...

Страница 142: ...G Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 12 AUTO CALIBRATION XZ VX 11 AUTO CALIBRATION 11 Select the model name LG T300 12 Click start button Model name Start button ...

Страница 143: ...on In this procedure you can get proper scale factor value and measured power level 12 7 ADC This procedure is for battery calibration You can get main Battery Config Table and temperature Config Table will be reset 12 8 Target Power 30 dBm 30 dBm 30 dBm Max power 1909 8 MHz 1880 MHz 1850 2 MHz Frequency 810 661 512 Channel PCS 1900 30 3 dBm 30 3 dBm 30 3 dBm Max power 1784 8 MHz 1747 6 MHz 1710 2...

Страница 144: ...EW LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes MTAD00 ACGK00 ACFA00 MPBU00 MWAC00 AKAC00 ACGM00 SNGF00 GMEY00 SBPL00 ACGA00 ADCA00 SUSY00 SVLM00 SAFY00 SC201 SPKY00 SJMY00 SVCY00 ACKA00 SUMY00 ...

Страница 146: ... MCDF00 CARD WARRANTY MCDF0001126 PRINTING empty WITHOUT COLOR 4 MCCL00 CAP BOX MCCL0001701 BOX TW 1152 105 785 Without Color 4 MPBZ00 PAD MPBZ0219601 COMPLEX empty 503 860 145 Without Color 4 MPBZ01 PAD MPBZ0001211 LG DB525 NEW Angle 4 MPCY00 PALLET MPCY0012403 COMPLEX empty DARK BLUE 3 MBAD00 BAG VINYL PE MBAD0005204 COMPLEX empty WITHOUT COLOR 3 MBEE00 BOX MASTER MBEE0059801 BOX TW 307 170 251 ...

Страница 147: ...7 MLAB LABEL A S MLAB0001102 C2000 USASV DIA 4 0 WHITE 7 MTAB00 TAPE PROTECTION MTAB0406502 COMPLEX empty WITHOUT COLOR 7 MTAZ00 TAPE MTAZ0321701 COMPLEX empty WITHOUT COLOR 6 ADCA00 DOME ASSY METAL ADCA0115301 WITHOUT COLOR 6 BRAH00 RESIN PC BRAH0001301 empty Black 6 MGAZ00 GASKET MGAZ0102501 COMPLEX empty WITHOUT COLOR 6 MGAZ01 GASKET MGAZ0102502 WITHOUT COLOR 6 MTAB00 TAPE PROTECTION MTAB040650...

Страница 148: ...059501 3 0 2 0 dB Amotech 3015 Size BT Chip Antenna Pb Free SINGLE 2 0 50ohm 3 0 7 C101 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 7 C102 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 7 C103 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 7 C105 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 7 C106 CAP CERAMIC CHIP ECCH0005603 2 2 uF 10V K X5R TC 1608 ...

Страница 149: ...3 0 1 uF 10V K X7R HD 1005 R TP 7 C129 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 7 C130 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 7 C131 CAP CERAMIC CHIP ECCH0000143 1 nF 50V K X7R HD 1005 R TP 7 C132 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 7 C133 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 7 C134 CAP CHIP MAKER ECZH0001216 220 nF 10V K...

Страница 150: ... 2X1 6X1MM NONE SMD R TP 7 C222 CAP CERAMIC CHIP ECCH0000115 22 pF 50V J NP0 TC 1005 R TP 7 C223 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 7 C224 CAP CERAMIC CHIP ECCH0000161 33 nF 16V K X7R HD 1005 R TP 7 C225 CAP CERAMIC CHIP ECCH0000145 1 5 nF 50V K X7R HD 1005 R TP 7 C227 CAP CERAMIC CHIP ECCH0000198 2 2 uF 6 3V M X5R TC 1005 R TP 7 C228 CAP CHIP MAKER ECZH0001215 1 uF 10V K X5R...

Страница 151: ...22 nF 16V K X5R HD 1005 R TP 7 C303 CAP CERAMIC CHIP ECCH0007804 2 2 uF 10V M X5R HD 1005 R TP empty empty empty empty empty empty 0 5 mm 7 C304 CAP CHIP MAKER ECZH0003118 560 pF 50V K X7R HD 1005 R TP 7 C305 CAP CHIP MAKER ECZH0003118 560 pF 50V K X7R HD 1005 R TP 7 C306 CAP CERAMIC CHIP ECCH0000110 10 pF 50V D NP0 TC 1005 R TP 7 C307 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R TP 7 C3...

Страница 152: ...6 pF 50V J NP0 TC 1005 R TP 7 C334 CAP CHIP MAKER ECZH0000841 56 pF 50V J NP0 TC 1005 R TP 7 C335 CAP CERAMIC CHIP ECCH0000112 15 pF 50V J NP0 TC 1005 R TP 7 C336 CAP CERAMIC CHIP ECCH0000112 15 pF 50V J NP0 TC 1005 R TP 7 C337 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 7 C338 CAP CHIP MAKER ECZH0003103 0 1 uF 10V K X7R HD 1005 R TP 7 C339 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R...

Страница 153: ...1005 R TP 7 C434 CAP CERAMIC CHIP ECCH0000110 10 pF 50V D NP0 TC 1005 R TP 7 C435 CAP CERAMIC CHIP ECCH0000155 10 nF 16V K X7R HD 1005 R TP 7 C436 CAP CERAMIC CHIP ECCH0000155 10 nF 16V K X7R HD 1005 R TP 7 C437 CAP CERAMIC CHIP ECCH0000196 0 75 pF 50V C NP0 TC 1005 R TP 7 C438 CAP CERAMIC CHIP ECCH0000110 10 pF 50V D NP0 TC 1005 R TP 7 C439 CAP CERAMIC CHIP ECCH0004904 1 uF 6 3V K X5R TC 1005 R T...

Страница 154: ... 881 5 MHz 25 MHz 2 5 dB 23 dB 942 5 MHz 35 MHz 2 9 dB 18 dB 1 8 1 4 0 5 SMD 869M 894M 925M 960M 10p B 150 LH GSM850 EGS M Rx DIP_OUT 881 5 942 5 1 8 1 4 0 5 SMD R TP 7 FL402 FILTER SAW DUAL SFSB0001903 1842 5 MHz 75 MHz 3 1 dB 12 dB 1960 MHz 60 MHz 3 2 dB 8 dB 1 8 1 4 0 5 SMD 1805M 1880M 1930M 1990M 10p B 170 DCS PCS Rx LH DIP_OUT 1842 5 1960 1 8 1 4 0 5 SMD R TP 7 FL403 FILTER DIELECTRIC SFDY000...

Страница 155: ...0 Kohm 1 16W J 1005 R TP 7 R106 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP 7 R108 RES CHIP MAKER ERHZ0000402 10 ohm 1 16W J 1005 R TP 7 R110 PCB ASSY MAIN PAD SHORT SAFP0000501 7 R113 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP 7 R114 RES CHIP MAKER ERHZ0000484 470 ohm 1 16W J 1005 R TP 7 R115 RES CHIP MAKER ERHZ0000204 100 Kohm 1 16W F 1005 R TP 7 R116 RES CHIP MAKER ERHZ0000...

Страница 156: ...15 RES CHIP MAKER ERHZ0000505 680 ohm 1 16W J 1005 R TP 7 R216 RES CHIP MAKER ERHZ0000486 47 Kohm 1 16W J 1005 R TP 7 R217 RES CHIP MAKER ERHZ0000404 1 Kohm 1 16W J 1005 R TP 7 R218 RES CHIP MAKER ERHZ0000434 1 ohm 1 16W J 1005 R TP 7 R219 RES CHIP MAKER ERHZ0000434 1 ohm 1 16W J 1005 R TP 7 R220 RES CHIP MAKER ERHZ0000486 47 Kohm 1 16W J 1005 R TP 7 R221 RES CHIP MAKER ERHZ0000486 47 Kohm 1 16W J...

Страница 157: ...AKER ERHZ0000445 220 Kohm 1 16W J 1005 R TP 7 R317 RES CHIP MAKER ERHZ0000529 1 5 Kohm 1 16W J 1005 R TP 7 R320 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP 7 R321 RES CHIP MAKER ERHZ0000441 22 ohm 1 16W J 1005 R TP 7 R322 RES CHIP ERHY0000105 51 ohm 1 16W F 1005 R TP 7 R323 RES CHIP ERHY0003301 100 ohm 1 16W J 1005 R TP 7 R326 PCB ASSY MAIN PAD SHORT SAFP0000501 7 R327 PCB ASSY MAIN PAD ...

Страница 158: ... RF MODULE HANDSET SMRH0006301 MHz MHz GPRS QUAD TX MODULE SP6T 6 63 5 24 1 02 22pin 7 U402 IC EUSY0397001 WLBGA 42 R TP Bluetooth V2 1 3 0x2 5x0 5t 0 4pitch IC Bluetooth 7 VA201 VARISTOR SEVY0004301 18 V SMD 10pF 1005 7 VA202 VARISTOR SEVY0004301 18 V SMD 10pF 1005 7 VA203 VARISTOR SEVY0004301 18 V SMD 10pF 1005 7 VA204 VARISTOR SEVY0004301 18 V SMD 10pF 1005 7 VA302 VARISTOR SEVY0005202 5 5 V 30...

Страница 159: ...ETC SMZY0023501 3 8 Backup Capacitor 0 03F Module Assembly 7 C325 CAP CHIP MAKER ECZH0000901 24 pF 50V J NP0 TC 1005 R TP 7 C340 DIODE TVS EDTY0009101 SOD 923 5 V 150 mW R TP 1 0 0 6 0 4 7 C341 DIODE TVS EDTY0009101 SOD 923 5 V 150 mW R TP 1 0 0 6 0 4 7 C342 DIODE TVS EDTY0009101 SOD 923 5 V 150 mW R TP 1 0 0 6 0 4 7 C343 DIODE TVS EDTY0009101 SOD 923 5 V 150 mW R TP 1 0 0 6 0 4 7 C445 CAP CERAMIC...

Страница 160: ...CEMENT PART LIST Level Location No Description Part Number Spec Color Remark 7 R410 RES CHIP MAKER ERHZ0000457 30 ohm 1 16W J 1005 R TP 7 SPFY00 PCB MAIN SPFY0229101 FR 4 8 mm BUILD UP 6 MAIN 7 VA305 VARISTOR SEVY0005202 5 5 V 30 SMD 1005 100 pF Pb free 7 ZD302 DIODE TVS EDTY0009401 VMN2 5 V 10 W R TP 1 0 0 6 0 4 7 82V 100mW empty empty 2P 1 ...

Страница 161: ...3 SSAD00 ADAPTOR AC DC SSAD0035401 100 240V 5060 Hz 4 8 V 400 mA CE AC DC ADAPTOR 90Vac 264Vac 4 8Vdc 6 4Vdc 400mA 5060 WALL 2P USB 3 ADAPTOR AC DC SSAD0035402 100 240V 5060 Hz 4 8 V 400 mA CE AC DC ADAPTOR 90Vac 264Vac 4 8Vdc 6 4Vdc 400mA 5060 WALL 3P USB 2 APAY00 PACKAGE APAY0150802 LG T300 ORU TR1 1HL Buyer UB UL_2ea ML PL_70ea Bag_2ea Angle 500ea WITHOUT COLOR 3 APLY00 PALLET ASSY APLY0003204 ...

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