LG L704I Service Manual Download Page 98 | Manualshive

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LGE Internal Use Only

Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes

4. TROUBLE SHOOTING

- 99 -

0603

0603

0603

Artwork --> Place crystal and load caps close to PM6650 !!

0603

C697

4.7u

4.7u

C701

FC-255

EXXY0016601

32.768KHz
X2

R1341

47K

0.1u

C562

TP317

C713
12p

1u

C665

EDSY0011901

D14

RB521S-30

47K

R1340

R1139

NA

12p

C714

MSM_INT_N

60

VCOIN

61

REF_ISET

62

REF_GND

63

REF_BYP

64

VREG_WLAN

VDD_WLAN

SBST

52

VDD_MSM

53

TCXO_OUT

54

VDD_ANA

55

TCXO_EN

56

VREG_MSMA

57

PS_HOLD

58

TCXO_IN

59

XTAL_IN

45

SLEEP_CLK

46

XTAL_OUT

47

SBDT

48

VBACKUP

49

SBCK

50

VREG_MSMP

51

43

RUIM_RST(MPP6)

44

121K

R1138

47

R1125

+VP

W

SLEEP_CLK

VREG_MSMP_2.7V

V_BACK_UP

TCXO_PM

JTAG_PS_HOLD

SSBDT_PM

PM_INT_N

TCXO_EN
+VPWR

+VPWR

BUFF_TCXO_MSM

USIM_P_RST_N

VREG_MSMA_2.6V

PS_HOLD

0603

2520

2016

1005

1005

1000p

C611

4.7uH

L1

2.2u

C704

C709
2.2u

L2

4.7uH

C696

4.7u

VSW_MSME

38

RUIM_CLK(MP

P

39

VREG_MMC

40

RUIM_M_RST(

M

41

VDD_RUIM

42

VREG_RUIM

30

RUIM_M_IO(M

P

31

VSW_MSMC

32

VREG_MSMC

33

VDD_MSMC

34

RUIM_M_CLK(

M

35

VDD_MSME

36

VREG_MSME

37

KPDPWR_N

25

VIB_DRV_N

26

RUIM_IO(MPP1

27

VSW_PA

28

VREG_PA

29

VDD_PA

C695

4.7u

C610

1000 pF

VREG_SD_2.85V

MSM_USIM_RST_N

USIM_P_CLK

VREG_MSME_1.8V

MSM_USIM_CLK

VREG_MSMC_1.375V

MSM_USIM_DATA

+VPWR

USIM_P_DATA

VREG_USIM_2.85V

C664

1u

REF_OUT(MPP8)

81

VREG_SYNT

82

AMUX_OUT

83

VDD_MAIN

84

VREG_TCXO

85

GND_SLUG

78

SPKR_IN_M

79

SPKR_OUT_M

80

5

ISNS_M

4

CHG_CTL_N

ISNS_P

3

2

VCHG

1

ADC_BYP

C663

1u

PM_ADC

VREG_TCXO_2.85V

VREG_SYNTH_2.6V

+VPWR

GSM_PA_DAC_REF

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Summary of Contents for L704I

Page 1: ...Date September 2007 Issue 1 0 Service Manual Model L704i Service Manual L704i Internal Use Only ...

Page 2: ...ubleshooting 100 4 8 USB Troubleshooting 103 4 9 SIM Detect Troubleshooting 105 4 10 Keypad Backlight Troubleshooting 111 4 11 Slide Close Open Troubleshooting 112 4 12 Main LCD Troubleshooting 113 4 13 Receiver Path 114 4 14 Headset path 116 4 15 Speaker phone path 118 4 16 Main microphone 120 4 17 Headset microphone 122 4 18 Vibrator 124 5 DOWNLOAD 125 5 1 Introduction 125 5 2 Downloading Proced...

Page 3: ... 4 LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes ...

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

Page 5: ...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 system boar...

Page 6: ...all 350 mA with 1000mAh Over 150 min GSM900 Tx 29 dBm Voice call 350 mA Standby Time Over 400 hrs WCDMA only mode DRX 2 56s under 2 5mA with 1000mAh Over 300 hrs GSM Paging period 5 under 3 0 mA Charging duration About 2 hours 40 min 0 40 Antenna Intenna Main LCD 320X240 2 2 TFT Main LCD BL White LED Back Light Vibrator Yes 10 pie coin type LED Indicator Yes C Mic Yes SMD type Receiver Yes 9X6 Lou...

Page 7: ... 3 28V Operation Temp 20 60 C Storage Temp 30 85 C Humidity 40 85 Reference Spec Min Typ Max Unit TA Power Available power 100 220 240 Vac No Item GSM DCS PCS 100k 1GHz 39dBm 9k 1GHz 39dBm MS allocated 1G 1710MHz 33dBm Channel 1G 12 75GHz 33dBm 1710M 1785MHz 39dBm Conducted 1785M 12 75GHz 33dBm 1 Spurious 100k 880MHz 60dBm 100k 880MHz 60dBm Emission 880M 915MHz 62dBm 880M 915MHz 62dBm Idle Mode 91...

Page 8: ... 1 71G 1 785GHz 53dBm 1 785G 4GHz 47dBm 1 785G 4GHz 47dBm 3 Frequency Error 0 1ppm 0 1ppm 4 Phase Error 5 RMS 5 RMS 20 PEAK 20 PEAK 3dB below reference sensitivity 3dB below reference sensitivity Frequency Error RA250 200Hz RA250 250Hz 5 Under Multipath and HT100 100Hz HT100 250Hz Interference Condition TU50 100Hz TU50 150Hz TU3 150Hz TU1 5 200Hz 0 100kHz 0 5dB 0 100kHz 0 5dB 200kHz 30dB 200kHz 30...

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

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

Page 11: ...MHz 3 84M 800 60 dBm 2110 2155MHz 3 84M 15 Transmit Intermodulation 31 dBc 5MHz Interferer 40dBc 41 dBc 10MHz Interferer 40dBc 16 Error Vector Magnitude EVM 17 5 20dBm 12 2k 1DPDCH 1DPCCH 17 Transmit OFF Power 15 dB SF 4 768kbps multi code transmission No Item GSM DCS PCS 1 Sensitivity TCH FS Class II 102dBm 102dBm 2 Co Channel Rejection C Ic 7dB C Ic 7dB TCH FS Class II RBER TU high FH 3 Adjacent...

Page 12: ...15MHz UE 20dBm output power Class3 44 dBm 3 84MHz f 2050 2095 2185 2230 MHz band a UE 20dBm output power class3 30 dBm 3 84MHz f 2025 2050 5 Out band Blocking 2230 2255 MHz band a UE 20dBm output power class3 15 dBm 3 84MHz f 1 2025 2255 12500 MHz band a UE 20dBm output power class3 6 Spurious Response 44dBm CW UE 20dBm output power class3 46 dBm CW 10MHz 7 Intermodulation Characteristic 46dBm 3 8...

Page 13: ...klight off 2 5 Antenna BAR Antenna Bar WCDMA GSM BAR 3 RSCP 105 dBm RSSI 95dBm and Ec Io 12 dBm BAR 2 RSCP 105dBm or Ec Io 12dBm and 100 RSSI 95dBm Ec Io 14 dBm and RSCP 110 dBm BAR 1 RSCP 110 dBm or Ec Io 14dBm and 105 RSSI 100dBm Ec Io 17 dBm and RSCP 113 dBm Network Notification RSSI 105dBm Stand by Voice Call VT WCDMA 400 Hours 2 5mA 150 Min 350mA 90 Min 650mA DRX 2 56 Tx 10dBm Tx 10dBm 300 Ho...

Page 14: ...AR 3 2 3 75 0 05V 3 64 0 05V call maintenance over 40min BAR 2 1 3 63 0 05V 3 53 0 05V call maintenance over 10min BAR 1 0 Idle Talk 3 30V 0 05V Idle Talk 3 30V 0 05V Icon Blinking Under 10deg 3 00V 0 05V Under 10deg 3 00V 0 05V Low battery message BAR 1 0 Low battery pop up BAR 2 1 display one time Power OFF during call 80s after Low battery message Power OFF at stand by 60s after Low battery mes...

Page 15: ...dBPA NOM Idle Noise Receiving INR 14 MAX 55dBm0p NOM Idle Noise Sending INS 13 MAX 40dB NOM Echo Loss EL 12 MAX 25dB NOM Side Tone Masking Rating STMR 11 12 3dB MAX 1 3dB NOM Receiving Loudness Rating RLR 10 MAX 8 3dB NOM Head set Sending Loudness Rating SLR 9 A C O U S T I C A I R 36dBPA MAX 47dBPA NOM Idle Noise Receiving INR 8 MAX 64dBm0p NOM Idle Noise Sending INS 7 MAX 40dB NOM Echo Loss EL 6...

Page 16: ...The quad band GSM transmitters use a baseband to IF upconversion followed by an offset phase locked loop that translates the GMSK modulated or 8 PSK modulated signal to RF A generic high level functional block diagram of L704i is shown in Figure 1 1 One antenna collects base station forward link signals and radiates handset reverse link signals The antenna connects with receive and transmit paths ...

Page 17: ...put ADC as the RTR6275 IC baseband outputs The GSM EDGE transmit path employs one stage of up conversion and in order to improve efficiency is divided into phase and amplitude components to produce an open loop Polar topology 1 The on chip quadrature up converter translates the GMSK modulated signal or 8 PSK modulated signal to a constant envelope phase signal at RF 2 The amplitude modulated AM co...

Page 18: ...ands and modes to share the same antenna In L704i a common antenna connects to one of seven paths 1 UMTS 800 Rx Tx 2 UMTS 2100 Rx Tx 3 GSM 900 Rx 4 DCS 1800 Rx 5 PCS 1900 Rx 6 GSM 900 Tx 7 DCS 1800 PCS 1900 Tx UMTS operation requires simultaneous reception and transmission so the UMTS Rx Tx connection is routed to a duplexer that separates receive and transmit signals GSM900 DCS and PCS operation ...

Page 19: ... accomplished in the front end module The GSM900 DCS and PCS receive signals are routed to the RTR6275 through band selection filters and matching networks that transform single ended 50Ωsources to differential impedances optimized for gain and noise figure Similar to the RFR the RTR input uses a differential configuration to improve second order inter modulation and common mode rejection performa...

Page 20: ...LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 3 TECHNICAL BRIEF 21 RTR6275 RX feature ...

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

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

Page 23: ...ing The QUALCOMM MSM device provides status and control signaling employing power reduction features such as selective circuit power down gain control and bias control to extend handset standby time 3 3 2 Transmitter The UMTS Tx path begins with differential baseband signals I and Q from the MSM device These analog input signals are amplified filtered and applied to the quadrature up converter mix...

Page 24: ...Only for training and service purposes The RTR6275 IC is able to support UMTS 2100 1900 and UMTS 800 mode transmitting This design guideline shows only UMTS 2100 1900 and UMTS 850 applications 3 TECHNICAL BRIEF 25 WCDMA_2100_TX WCDMA_800_TX RTR6275 IC functional block diagram ...

Page 25: ...es the Rx LO for one of the high band UMTS receive Paths Figure 5 2 3 PLL3 within the RFR6275 IC produces the Rx LO for the remaining UMTS receive paths 4 PLL4 within the RFR6275 IC produces the Rx LO for the GPS receive path Within the RFICs a buffered 19 2 MHz TCXO signal provides the synthesizer input REF the frequency reference to which the PLL is phase and frequency locked The reference is di...

Page 26: ...th 4 The listed VCO tuning sensitivity is based on QUALCOMM internal Rx VCO 5 The listed settling times are for switching between channels at opposite ends of the active band and settling to within 250 Hz of the final frequency 6 Test and evaluation efforts were ongoing at the time of this document release Check future versions for design recommendations based on our test results 3 4 2 Transceiver...

Page 27: ...LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 3 5 Off chip RF Components 3 5 1 Front end module FL34 LMSP54MA 543 3 TECHNICAL BRIEF 28 ...

Page 28: ...band losses between the PA and LNA Minimum duplexer Rx band isolation value is about 46 dB Tx band isolation the transmit channel power also leaks into the receiver In this case the leakage is outside the receiver passband but at a relatively high level It combines with Rx band jammers to create cross modulation products that fall in band to desensitize the receiver The required Tx band isolation ...

Page 29: ...mpatibility with the Qualcomm 6250 chipset The device is manufactured on an advanced InGaP HBT MMIC technology offering state of the art reliability temperature stability and ruggedness Selectable bias modes that optimize efficiency for different output power levels and a shutdown mode with low leakage current increase handset talk and standby time The selfcontained 4 mm x 4 mm x 1 1 mm surface mo...

Page 30: ...LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 3 TECHNICAL BRIEF 31 ...

Page 31: ...bility and ruggedness The AWT6307R is part of ANADIGICS High Efficiency at Low Power HELP family of CDMA power amplifiers which deliver low quiescent currents and significantly greater efficiency without a costly external DAC or DC DC converter Through selectable bias modes the AWT6307 achieves optimal efficiency across different output power levels specifically at low and mid range power levels w...

Page 32: ... GSM PA and DCS1800 PCS1900 PA blocks impedancematching circuitry for 50 Ω input and output impedances and a Power Amplifier Control PAC block with an internal current sense resistor The custom BiCMOS integrated circuit provides the internal PAC function and interface circuitry Fabricated onto a single Gallium Arsenide GaAs die one Heterojunction Bipolar Transistor HBT PA block supports the GSM ba...

Page 33: ...ule maximizes handset standby time The SKY77318 also contains bandselect switching circuitry to select GSM logic 0 or DCS PCS logic 1 as determined from the Band Select BS signal In Figure below the BS pin selects the PA output DCS PCS_OUT or GSM_OUT and the Analog Power Control VAPC controls the level of output power LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only ...

Page 34: ...ts to the RFR6275 IC This is accomplished by the RF filter which takes a single ended output from the RFR6275 IC and provides differential outputs having nominal 180 phase separation Phase and or amplitude imbalance causes degraded common mode rejection and second order nonlinearity so their requirements are specified jointly 3 degrees and 1 dB 12 to 3 degrees and 0 7 dB 3 5 6 VCTCXO X4 TG 5010LH ...

Page 35: ...leration for faster Java based games and other applets QDSP4000 high performance DSP cores Integrated gpsOne position location technology functionality Integrated Bluetooth 1 2 baseband processor for wireless connectivity to peripherals Qcamera with 15 fps QVGA viewfinder resolution and support for 4 MP camera sensors Direct interface to digital camera module with video front end VFE image process...

Page 36: ...LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 3 TECHNICAL BRIEF 37 Figure Simplified Block Diagram ...

Page 37: ...0 CONNECTIVITY CAMERA PROCESSING Default 8bit Interface GRAPHICS VIDEO AUDIO DUAL MEMORY BUS Modem QDSP 4000 PLL QDSP 4000 ARM 926ejs With Jazelle UMTS WCDMA HSDPA processor Rx ADC Tx DAC AAC EVRC QCELP AMR CMX EBI 1 EBI 2 Open GL ES 3D 2D MPEG 4 Keypad I F USB UART1 UART2 RUIM1 PMIC SSBI Camera 0 3M KEY PAD I O Conn USB NAND Flash 2G SDRAM 1G LCD 2 2î PM6650 GSM GPRS processor JTAG RF SSBI GPIO U...

Page 38: ...e W CDMA FDD standard including the following features All modes and data rates for W CDMA frequency division duplex FDD with the following restrictions The downlink supports the following specifications Up to four physical channels including the broadcast channel BCH if present Up to three dedicated physical channels DPCHs Spreading factor SF range support from 4 to 256 The following transmit div...

Page 39: ...S data and fax No sub rates are supported 3 8 4 GPRS features Packet switched data GPRS DTM Simple Class A operation Multi slot class 12 data services CS schemes CS1 CS2 CS3 and CS4 GEA1 GEA2 and GEA3 ciphering Maximum of four Rx timeslots per frame 3 8 5 MSM6280 device audio processing features Integrated wideband stereo CODEC 16 bit DAC with typical 88 dB dynamic range Supports sampling rates up...

Page 40: ... MHz bus clock for SDRAM 32 bit SDRAM Dual memory buses separating the high speed memory subsystem EBI1 from low speed peripherals EBI2 such as LCD panels 1 8 V or 2 6 V memory interface support excluding EBI1 NAND FLASH memory interface 8 16 bit data I O width NAND flash support 1 or 4 bit ECC 512 byte 2KB page size support 2 chip selects supported for NAND Flash Boot from NAND Low power SDRAM LP...

Page 41: ...mera processing supporting CCD or CMOS image sensors up to 4 megapixel with 15 fps capture rate 15 fps QVGA viewfinder Qtv Audio and video decoder that supports VOD MOD and Broadcast multimedia services Audio Codecs supported AMR NB AAC AAC Plus Enhanced AAC Plus Windows Audio v9 RealAudio v8 Integrated stereo wideband Codec for music digital clips CMX Video Codecs supported MPEG 4 H 263 H 264 Win...

Page 42: ...2 simultaneous polyphonic tones 44 kHz sampling rate 512 kB wave table Support of universal file formats Standard MIDI Format SMF SP MIDI SMAF Audio playback MA 2 MA 3 MA 5 XMF OLS MFil requires Docomo license PNG decoder Pitch bend range support LED vibrate support Scalable Vector Graphics SVG Tiny 1 1 SVG Tiny 1 2 MLZ decoder Integrated PNG SAF A T Table 1 1 Summary of MSM6280 device features ...

Page 43: ... In addition the QDSP4000 has modules to support the following audio functions DTMF tone generation DTMF tone detection Tx Rx volume controls Tx Rx automatic gain control AGC Rx Automatic Volume Control AVC EarSeal Echo Canceller ESEC Acoustic Echo Canceller AEC Noise Suppression NS and programmable 13 tap Type I FIR Tx Rx compensation filters The MSM6280 device s integrated ARM9TDMI processor dow...

Page 44: ...l RAM ROM general purpose chip selects parallel LCD interface and a UART interface The function of these pins is documented in the various software releases 3 8 15 UART The MSM6280 device employs three UARTs UART1 has dedicated pins while UART2 and UART3 share multiplexed pins UART1 for data UART2 can be used for USIM interface UART3 for data 3 8 16 USB The MSM6280 device integrates a universal se...

Page 45: ...ded to power the appropriate handset electronics It monitors and controls the power sources detecting which sources are applied verifying that they are within acceptable operational limits and coordinates battery and coin cell recharging while maintaining the handset electronics supply voltages Eight programmable output voltages are generated using low dropout voltage regulators all derived from a...

Page 46: ...LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 3 TECHNICAL BRIEF 47 Figure PM6650 Functional Block Diagram ...

Page 47: ...in whether a valid external supply is applied or not For additional accuracy or to capture variations over time this voltage is routed internally to the housekeeping ADC via the analog multiplexer PM6650 circuits monitor voltages at VCHARGER and ICHARGE pins to determine which supply should be used and when to switch between the two supplies These pins are connected to the Source or emitter and Dr...

Page 48: ...ry enabled through SBI control and powered from VDD is provided by the PM6650 IC The trickle charger is on chip programmable current source that supplies current from VDD to pin VBAT Trickle charging can be used for lithium ion and nickelbased batteries with its performance specified below 3 2V The charging current is set to 80mA Parameter Min Typ Max Unit Trickle Current 60 80 100 mA ...

Page 49: ... Constant voltage charging begins when the battery voltage reaches a target voltage 4 2V The end of constant voltage charging is commonly detected 10 of the full charging current 140mA Charging Method CC CV Constant Current Constant Voltage Maximum Charging Voltage 4 2V Maximum Charging Current 600mA Nominal Battery Capacity 1000 mAh Charger Voltage 5 4V Charging time Max 160min Except time trickl...

Page 50: ...2MBytes on each chip select Synchronous burst memories supported burst NOR burst PSRAM Synchronous DRAM memories supported Byte addressable memory supporting 8 bit 16 bit and 32 bit accesses Pseudo SRAM PSRAM memory support EBI2 Features Support for asynchronous FLASH and SRAM 16bit 8bit Interface support for byte addressable 16bit devices UB_N LB_N signals 2Mbytes of memory per chip select Suppor...

Page 51: ...or to the power amplifier 3 TECHNICAL BRIEF 52 Figure Schematic of RF Interface of MSM6280 Near to MSM WCMDA 2100PAM Enable TP313 33nF C617 2K R1121 TCXO_EN_GPIO94 F19 TRK_LO_ADJ L13 H13 TX_AGC_ADJ SYNTH0_GP_PDM0_GPIO92 SBST1_GPIO93 H18 PA_ON0 F17 AA25 Q_IM_CH0 Q_IM_CH1 W23 Y25 Q_IP_CH0 Q_IP_CH1 V23 B12 Q_OUT A12 Q_OUT_N AB25 I_IM_CH0 V25 I_IM_CH1 AC25 I_IP_CH0 W25 I_IP_CH1 I_OUT B13 I_OUT_N A13 H...

Page 52: ... signals for control Sub chipset RX_I Q_M P I Q for Rx of RF C the others TRK_LO_ADJ TCXO 19 2M Control PA_ON1 WCDMA 800 WCDMA 2100 TX Power Amp Enable ANT_SEL 0 3 Ant Switch Module Mode Selection WCDMA GSM Tx Rx DCS PCS Tx Rx GSM_PA_BAND GSM DCS PCS Band Selection of Power Amp GSM_PA_RAMP Power Amp Gain Control of APC_IC GSM_PA_EN Power Amp Gain Control Enable of APC_IC ...

Page 53: ...s are followed USIM_CLK USIM Clock USIM_Reset USIM Reset USIM_Data USIM Data T Rx 3 11 2 2 UART Interface UART signals are connected to MSM GPIO through IO connector with 115200 bps speed 3 TECHNICAL BRIEF 54 GPIO_Map Name Note GPIO_96 UART_RXM Data_Rx GPIO_95 UART_TXM Data_Tx MSM6280 PM6650 USIM MSM_USIM CLK MSM_USIM Reset MSM_USIM Data USIM Data USIM Reset USIM CLK VREG_UIM 2 85V Figure SIM Inte...

Page 54: ... interface is also compliant as a peripheral with the USB Specification Revision 2 0 The USB Specification Revision 1 1 defines two speeds of operation namely low speed 1 5 Mbps and full speed 12 Mbps both of which are supported by the MSM6280 Name Note USB_DAT Data to from MSM USB_SE0 Data to from MSM USB_OE_N Out Put Enable of Transceiver USB_VBUS USB_Power From Host PC USB_D USB Data to Host US...

Page 55: ... for non booting from USB When the phone is booted from USB_VBUS without Battery booting current might be insufficient Sometimes this scheme can break the USB port on a computer So L704i does not support booting from USB 3 TECHNICAL BRIEF 56 Figure Schematic of USB protective circuit Q7 KRX102E 2 4 5 3 1 EQBA0000602 USB_VBUS PS_HOLD USB_VBUS_IN ...

Page 56: ...gitize DC signals corresponding to analog parameters such as battery voltage temperature and RF power levels The MSM6280 device has six analog input pins which are multiplexed to the input of the internal HKADC Figure MSM6280HKADC Block diagram Table HKADC channel table Channel Signal Note HKADC0 PM_ADC PMIC ADC Input HKADC1 VBATT_SENSE Battery voltage level detect HKADC2 HKADC3 HKADC4 PCB_Rev_ADC...

Page 57: ...gure Keypad Circuit Table Key Matrix Mapping Table COL 0 COL 1 COL 2 COL 3 ROW0 1 2 Up Music ROW 1 3 4 Down ROW 2 5 6 Multi ROW 3 7 8 9 ROW 4 0 Side KEY KEY 100ohm R22 MULTI ONE EVLC18S02015 VA1 UP FOUR EIGHT EVLC18S02015 VA15 STAR SHARP SEVEN FIVE END ZERO SIX NINE TWO R35 100ohm MUSIC DOWN THREE VA12 EVLC18S02015 KEY_ON_SW_N KEY_ROW 0 KEY_COL 3 KEY_COL 2 KEY_ROW 0 KEY_ROW 1 KEY_ROW 2 KEY_ROW 1 K...

Page 58: ...M_2 7V VREG_VGA_CAM_2 8V CAM_VGA_RESET CAM_DATA 0 CAM_VGA_PWDN CAM_DATA 1 CAM_PCLK CAM_DATA 2 CAM_DATA 3 CAM_DATA 4 CAM_DATA 5 CAM_DATA 7 CAM_DATA 6 CAM_HSYNC CAM_VSYNC CAM_I2C_SDA CAM_I2C_SCL Figure 2Mega Camera and Camera FPCB Board to Board Connector C1566 8 9 0 1u 3 30 31 32 33 34 35 36 37 38 39 4 40 5 6 7 15 16 17 18 19 2 20 21 22 23 24 25 26 27 28 29 ENBY0028501 AXT340164 CN837 G1 G2 G3 G4 1...

Page 59: ...cs Inc All right reserved Only for training and service purposes Table Interface between VGA Camera and Slide FPCB in camera module Camera AVDD 2 8V I VREG_VGA_CAM_2 8V 20 Camera DVDD 2 7V I VREG_CAM_2 7V 19 Camera reset signal I CAM_RESET_N 18 I2C Clock I I2C_SCL 17 GND GND GND 15 I2C Data I I2C_SDA 16 GND GND GND 3 Clock for Camera Data Out O CAM_PCLK 4 Data 0 O CAM_DATA 0 5 Data 1 O CAM_DATA 1 ...

Page 60: ...port from MSM6280 LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Table1_1 Interface between 2 Mega Camera Module and Camera FPCB in camera module CAM_AVDD_2 8V I VREG_VGA_CAM_2 8V 16 AF_Driver IC_LVDD2_2 7V I VREG_CAM_2 7V 15 AF_Actuator_LVDD1_2 7V I VREG_CAM_2 7V 14 Camera power down I CAM_PWDN 13 GND GND GND 12 NC NC NC 11 NC NC ...

Page 61: ... VREG_CAM_2 7V 31 Data 7 O CAM_DATA 7 30 Data 6 O CAM_DATA 6 29 Data 5 O CAM_DATA 5 28 Data 4 O CAM_DATA 4 27 Data 3 O CAM_DATA 3 26 Data 2 O CAM_DATA 2 25 Data 1 O CAM_DATA 1 24 Data 0 O CAM_DATA 0 23 GND GND GND 22 Master Clock I CAM_MCLK 21 GND GND GND 20 Horizontal Sync O CAM_HSYNC 19 Vertical Sync O CAM_VSYNC 18 CAM_AVDD_2 8V I VREG_VGA_CAM_2 8V 17 Note Port Name No Table1_2 Interface between...

Page 62: ...to 0V Otherwise 2 7V This SLIDE_DET_N signal is delivered to MSM6280 GPIO92 LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Figure Schematic of Slide ON OFF detection circuit 0603 0603 0603 Hall Sensor U504 TK60012BM5 EUSY0268101 2 GND1 GND2 5 6 IO_VDD 3 NC OUT 4 1 VDD 47 R402 C410 0 1u C489 33p VREG_MSMP_2 7V SLIDE_DET_N ...

Page 63: ...ing and service purposes KEYPAD LIGHTING R50 47 CL 435F WQ SD TS LD4 R51 47 CL 435F WQ SD TS EDLH0014302 LD3 VPWR SUB_LED_DRV_N Figure Numeric Keypad lighting Circuit ORANGE LED A 1 C 2 LD901 CL 482S TR1 CD TS EDLH0014201 1 A C 2 EDLH0014201 CL 482S TR1 CD TS LD902 LD900 1 A C 2 EDLH0014201 CL 482S TR1 CD TS LD905 A 1 C 2 EDLH0014201 CL 482S TR1 CD TS 22 R6 22 R5 22 R1 22 R4 22 R3 22 R2 EDLH001420...

Page 64: ... into Red Green and Blue sub pixels and dots which are arranged in vertical stripes Features Display mode Main LCD Normally Black Transmissive TN mode 65K 262K colors LCD Driver IC BD66344 Source Gate and Power IC Driving Method A Si TFT Active Matrix 16 bit 18 bit CPU interface Parallel LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purpos...

Page 65: ... 31 32 33 34 35 4 5 6 7 8 13 14 15 16 17 18 19 2 20 21 22 23 24 25 26 27 CN2 IMSA 9671S 35Y902 ENQY0012201 1 10 11 12 R14 47K D1 RSB6 8CST2R C1 0 1u EVLC14S02050 VA6 MLED_ANODE LCD_MAKER_ID EBI2_DATA 0 EBI2_DATA 1 EBI2_DATA 2 EBI2_DATA 3 EBI2_DATA 4 VREG_LCD_2 8V VREG_LCD_2 8V EBI2_DATA 5 EBI2_DATA 6 EBI2_DATA 7 EBI2_DATA 8 EBI2_DATA 9 EBI2_DATA 10 EBI2_DATA 11 EBI2_DATA 12 EBI2_DATA 13 EBI2_DATA ...

Page 66: ...SM6280 and outputs it to receiver or speaker The receive path can be directed to either one of two earphone amplifiers or the auxiliary output The outputs earphone1 EAR1OP EAR1ON and auxiliary out AUXOP AUXON are differential outputs Earphone2 EAR2 EAR3 is a single ended output stage designed to drive a headset speaker The microphone interface consists of two differential microphone inputs one dif...

Page 67: ...17 AA17 HPH_R AA19 HPH_VREF EAR1ON AE18 EAR1OP AF18 CCOMP AA20 AF19 AUXIN AE19 AUXIP AUXOUT AA18 HF_OUT MIC2P HPH_R HPH_L RCV RCV MICBIAS MIC1N MIC1P C1715 33p 10 11 12 13 14 2 3 4 5 6 7 8 9 ENJE0004401 HSEJ 10S 05 CN838 1 100K R1109 EVLC5S01015 VA541 R1110 100K 39 R1127 C1712 10p RSB6 8CST2R D25 R1126 39 R1108 100K 33p C1714 NA R1052 D24 RSB6 8CST2R C760 22n 2 2K R1095 C622 33p 10p C1713 VA546 EV...

Page 68: ...1 NC1 NC2 G1 G6 NC3 PLLC E1 E6 SCL SDA F6 SDIN E5 SDOUT F4 B5 SPOUT1 SPOUT2 B6 SPVDD A4 A5 SPVSS VREF C2 _RST BCLK0 F3 BCLK1 F2 CLKI DVDD1 C5 C6 DVDD2 F1 DVDD3 DVSS1 G2 DVSS2 D6 B1 HPC C4 HPOUTL B4 HPOUTR A2 HPVDD HPVSS B3 G5 IOVDD F5 LRCK0 G3 LRCK1 MBS YMU800 WZ U575 AUXL D3 C3 AUXR AVDD B2 A3 AVSS G4 R2003 0 2 2K R1307 33p C2006 DAC_RESET_N VREG_MSMP_2 7V VREG_DAC_3 0V VREG_MSME_1 8V VREG_MSMP_2...

Page 69: ...eadset MIDI Bell Headset Speaker MP3 Loud Mode SD contents Speaker MIDI Bell Loud Mode MIDI Speaker Phone Loud Mode Headset Voice Call Headset Speaker Phone Loud Mode Speaker phone Receiver Voice Call Description Receiver Mode Voice Call Device MODE Table Audio Mode Audio Processor LSI with SD Interface AP131 U545 Audio Processor 2 32 ohm receiver EMR0906SP Receiver 5 42 dB microphone SP0204LE5 PB...

Page 70: ...poses 3 12 Main Features 1 1 L704i Main features Slide Type WCDMA 850 1900 GSM Tri Class10 Color LCD Main 260K TFT 2 2 VGA 0 3M Camera 16 phi speaker Stereo Headset Speaker phone in GSM and WCDMA 68 Polyphonic MIDI Sound 3gp AAC decoder and play MPEG4 encoder decoder and play save JPEG en decoder Supports IrDA USB 1 000 mAh Li Ion ...

Page 71: ...tronics Inc All right reserved Only for training and service purposes 2 L704i Main Component 3 TECHNICAL BRIEF 72 Main board Bottom Main board TOP Logic RF Audio CAM FPCB Logic Power SUB board TOP SUB board Bottom Slide FPCB Touch FPCB Slide PCB ...

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

Page 73: ...ard Bottom Main board TOP TP1 TP2 TP3 TP4 TP5 TP6 TP7 TP8 TP9 TP10 TP11 TP12 TP13 Reference Description Reference Description TP1 Memory TP8 PMIC TP2 MSM6280 TP9 CAM FPCB Connector TP3 Crystal 19 2M TP10 Ear jack Connector TP4 Slide FPCB Connector TP11 I O Connector TP5 SUB PCB Connector TP12 Crystal 19 2M TP6 DAC SPK HP AMP TP13 Backup Battery TP7 Audio Processor ...

Page 74: ...007 LG Electronics Inc All right reserved Only for training and service purposes Reference Description Reference Description S1 Micro SD Slot CN3 Battery Connector J1 SIM Socket MIC1 MIC CN1 CN2 Main Connector LD1 LD2 3 Color LED S1 J1 CN1 CN2 CN3 MIC1 LD1 LD2 SUB board Bottom ...

Page 75: ...oses Slide FPCB Bottom Touch FPCB Bottom CAM FPCB TOP Slide PCB Bottom Touch FPCB Connector CN3 CN1 U3 Slide FPCB CN2 Slide PCB IrDA Module Speaker PAD 2M CAM Connector CN2 CAM FPCB SPK_N SPK_P U2 LCD Connector Backlight Charger Pump MOT_P MOT_N VGA CAM Connector Description Reference Motor PAD CN1 CN2 U2 U3 CN3 MOT_P N CN2 SPK_P N CN2 ...

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

Page 77: ... 78 4 TROUBLE SHOOTING LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes ...

Page 78: ... 79 4 TROUBLE SHOOTING LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes ...

Page 79: ...Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING 80 TP1 TP2 TP3 TP4 VCONT 1 19 2MHz X4 TG 5010LH_19_2M EXSK0007801 2 GND OUT 3 VCC 4 C1458 0 1u 100 R1282 C1423 100p 1000p C1387 1000p C1388 C1415 0 01u C1393 1000p VREG_TCXO_2 85V RTR6275_TCXO RFR6275_TCXO TRK_LO_ADJ TCXO_PM TP1 R1282 TP2 C1458 TP3 C1388 TP4 C1423 ...

Page 80: ...LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING 81 Check C664 of PMIC U513 Check R1121 of MSM U507 ...

Page 81: ...Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING 82 4 3 Checking Ant SW Module Block TP1 TP2 TP3 TP4 0603 Chip 0603 R1303 1K 33p C1374 R1304 1K 33p C1376 C1373 33p 1K R1302 33p C1375 VREG_RF_SMPS ANT_SEL0 ANT_SEL2 ANT_SEL1 ...

Page 82: ...LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING 83 ...

Page 83: ...E Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING 84 Logic Table of the Front End Module Checking Switch Block power source ...

Page 84: ... GSM900_RX1 19 20 GSM900_RX2 PIN_DIREC1 25 26 PIN_DIREC2 UMTS1 9 7 UMTS2 14 VC1 VC2 15 16 VC3 13 VDD LMSP54MA 543 FL34 11 ANT GND1 1 GND2 2 4 GND3 GND4 5 GND5 8 GND6 10 12 GND7 17 GND8 GND9 18 3 SFAY0008901 TP2 TP1 TP4 100ohm 0603 5 417 GND5 11 2 RFIN RFOUT 8 VCC1 1 10 VCC2 4 VMODE VREF 5 AWT6277R U578 GND1 3 GND2 6 7 GND3 9 GND4 C1703 120p 0 01u C1701 100 R1427 L44 NA 4 7u C1702 0 75p C1471 NA L4...

Page 85: ...OUBLE SHOOTING For testing Max power of UMTS2100MHz is needed Measured value and spectrum of TP1 LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes ...

Page 86: ...7 4 TROUBLE SHOOTING Measured value and spectrum of TP2 Measured value and spectrum of TP3 LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes ...

Page 87: ..._RX2 GSM900TX 6 GSM900_RX1 19 20 GSM900_RX2 PIN_DIREC1 25 26 PIN_DIREC2 UMTS1 9 7 UMTS2 14 VC1 VC2 15 16 VC3 13 VDD LMSP54MA 543 FL34 11 ANT GND1 1 GND2 2 4 GND3 GND4 5 GND5 8 GND6 10 12 GND7 17 GND8 GND9 18 3 SFAY0008901 TP1 TP2 TP4 0603 0 R1305 68p C1667 C1646 68p 10u C1628 1 VMODE 2 C1473 NA U574 AWT6307R 9 BGND 8 GND1 6 GND2 3 RFIN RFOUT 7 4 VBATT VCC 5 VEN C2005 7p 8 2nH L2003 C1645 68p PA_O ...

Page 88: ... 89 4 TROUBLE SHOOTING Measured value and spectrum of TP1 LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes ...

Page 89: ...E Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING 90 Measured value and spectrum of TP2 Measured value and spectrum of TP3 ...

Page 90: ...reserved Only for training and service purposes TP1 TP2 TP3 TP3 100ohm 0603 75 R1417 U558 50OHM 4 3 COUP IN 2 OUT 1 100 R1427 L44 NA 0 75p C1471 100 R1426 PWR_DET TP1 R1417 0603 0603 0 R1305 C1 68p 10u C1628 1 VMODE 2 3 U574 AWT6307R 9 BGND 8 GND1 6 GND2 3 RFIN RFOUT 7 4 VBATT VCC 5 VEN C1665 0 1u C1645 68p VPWR PA_R0 TP2 C1665 TP3 C1628 2 2nH L2002 GND5 11 2 RFIN RFOUT 8 VCC1 1 10 VCC2 4 VMODE VR...

Page 91: ... 5 RX 7 TX FL35 SAYZY1G95EA0B00 SDMY0001201 1nH L2001 5 6p C2004 C1449 10p WCDMA_2100 W2100_RX 39p C1465 GND3 GND4 8 GND5 9 GND6 RX 3 1 TX FL18 EFSD835MF2S2 SDDY0004502 6 ANT 2 GND1 4 GND2 5 IN 1 O1 3 O2 4 FL33 EFCH881MTDAA SFSY0030101 G1 2 G2 6 8nH L11 C1456 82p C1419 68p WCDMA_800 5 IN 1 O1 3 O2 4 FL33 EFCH881MTDAA SFSY0030101 G1 2 G2 6 8nH L11 C1456 82p 6 VDD UPG2010TB E3 U552 EUSY0207001 2 GND...

Page 92: ... 93 4 TROUBLE SHOOTING TP UMTS 800 Rx PATH TP UMTS 2100 Rx PATH LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes ...

Page 93: ...3 9nH NA C1439 4 7nH L27 NA L40 L12 3 9nH 18nH L16 C1440 0 5p L28 4 7nH 15nH L10 GSM Rx block Rev 1 0 0603 0603 0 01u R1300 0 0 01u C1597 56p C1631 0 01u C1596 15nH L41 10u C1437 68p 6 8p C1630 10 GND6 12 GND7 13 14 GND8 16 GND9 P_GND 21 RSVD_GND 19 20 VAPC VBATT 17 VCC1A 2 VCC1B 6 1 BS 3 DCS_PCS_IN DCS_PCS_OUT 15 4 EGSM_IN 11 EGSM_OUT 18 ENABLE 5 GND1 7 GND2 GND3 8 9 GND4 GND5 U569 SKY77318 SMPY0...

Page 94: ...trol GSM Mode 0 2V VBS 0 4V DCS PCS Mode 1 25V VBS 3 0V TP4 VPWR PAM Supply Voltage Vcc higher than 3 0V TP1 C1437 TP2 R1280 TP3 R1281 TP4 C1590 TP2 TP1 TP3 TP4 0603 0603 0603 0603 0603 0603 C1595 0 01u C1462 10p R1300 0 0 01u C1597 0 01u C1596 C1589 10u 10p C1461 100 R1281 C1590 10u C1437 68p 10 GND6 12 GND7 13 14 GND8 16 GND9 P_GND 21 RSVD_GND 19 20 VAPC VBATT 17 VCC1A 2 VCC1B 6 1 BS 3 DCS_PCS_I...

Page 95: ...ses 4 5 2 Checking RF Rx Block 4 TROUBLE SHOOTING 96 TP1 EGSM Rx block TP2 PCS Rx block TP3 DCS Rx block EGSM RX PCS RX DCS RX L30 NA L17 18nH L13 3 9nH NA C1439 4 7nH L27 NA L40 L12 3 9nH 18nH L16 C1440 0 5p L28 4 7nH 15nH L10 TP1 L16 L17 EGSM Rx block TP2 L12 L13 PCS Rx block TP3 L27 L28 DCS Rx block Rev 1 0 ...

Page 96: ...8V C696 VREG_MSMP_2 7V C701 VREG_MSMA_2 6V C697 VREG_TCXO_2 85V C664 power up and system reset assert to MSM Phone booting and PS_HOLD D14 assert to PMIC Start Battery voltage higher than 3 3V R1405 high to low when key press VREG_MSMC_1 25V VREG_MSME_1 8V VREG_MSMP_2 7V VREG_TCXO_2 85V VREG_MSMA_2 6V power up Is clock ok R1125 19 2M X2 32 768Khz Change the Main board Change or charging the Batter...

Page 97: ...t 2007 LG Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING 98 D14 VREG_MSMC VREG_MSME VREG_MSMA VREG_MSMP X2 32 768Khz R1125 19 2MHz VREG_TCXO Main board Bottom R1125 19 2MHz X2 32 768Khz ...

Page 98: ..._CLK VREG_MSMP_2 7V V_BACK_UP TCXO_PM JTAG_PS_HOLD SSBDT_PM PM_INT_N TCXO_EN VPWR VPWR BUFF_TCXO_MSM USIM_P_RST_N VREG_MSMA_2 6V PS_HOLD 0603 2520 2016 1005 1005 1000p C611 4 7uH L1 2 2u C704 C709 2 2u L2 4 7uH C696 4 7u VSW_MSME 38 RUIM_CLK MPP 39 VREG_MMC 40 RUIM_M_RST M 41 VDD_RUIM 42 VREG_RUIM 30 RUIM_M_IO MP 31 VSW_MSMC 32 VREG_MSMC 33 VDD_MSMC 34 RUIM_M_CLK M 35 VDD_MSME 36 VREG_MSME 37 KPDP...

Page 99: ...flows into the battery Charging Troubleshooting Procedure Connection of TA Check the charger connector Charging current path Check the charging current Path Battery Check the battery 4 TROUBLE SHOOTING 100 1 2012 5 6 4 QST4 Q1 EQBP0009901 3 1 2 R1137 0 1 smd_2125h_65_r ERHZ0003901 D G S1 S2 S3 S4 S5 FDJ129P Q8 EQFP0005101 C1618 33p C1661 33u 5V_PWR CHG_CNT_N ICHARGEOUT ICHARGE BATT_FET_N VPWR VBAT...

Page 100: ...ining and service purposes 4 TROUBLE SHOOTING 101 Figure Charging part schematic R1137 Q8 Q1 1 2012 5 6 4 QST4 Q1 EQBP0009901 3 1 2 R1137 0 1 smd_2125h_65_r ERHZ0003901 D G S1 S2 S3 S4 S5 FDJ129P Q8 EQFP0005101 C1618 33p C1661 33u 5V_PWR CHG_CNT_N ICHARGEOUT ICHARGE BATT_FET_N VPWR VBATT ...

Page 101: ...ice purposes 4 TROUBLE SHOOTING 102 4 BB Trouble Shooting Troubleshooting Flow Start Check the pin and battery Connect terminals of I O connector Connection OK Change I O connector Is the TA voltage 5 4V Change TA Is it charging properly After turning on Q1 Q8 END Change the board NO Yes NO Yes NO Yes ...

Page 102: ...D go to 3 3V USB_VP and USB_VN is triggered USB work LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Start Q7 PIN4 is 5V USB_D is 3 3V Change the Main board Check Q7 Check U513 NO YES YES NO Cable is inserted YES Insert cable NO Power is on YES Go to power on trouble shooting NO ...

Page 103: ...y Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING 104 Q7 D13 1 2 3 4 5 6 D13 PLR0504F USB_D USB_D Q7 KRX102E 2 4 5 3 1 EQBA0000602 USB_VBUS PS_HOLD USB_VBUS_IN ...

Page 104: ... SHOOTING 105 4 9 SIM Detect Troubleshooting USIM Initial sequence of L704i is USIM_CLK USIM_RST USIM_DATA triggered VREG_USIM_2 85V go to 2 85V USIM IF work Start Work well VREG_USIM_2 85V is 2 85V USIM_P_CLK is run Change the Main board End Check J1 Yes No YES NO Re insert the SIM card Change SIM card Work well End Yes No ...

Page 105: ...SHOOTING 106 VREG_UIM_2 85 USIM_P_CLK USIM_P_DATA USIM_P_RST_N Ground SIM 1 8T SIM 1 8T 4 7K R27 5 C6 6 C7 7 GND1 GND2 8 9 GND3 GND4 10 J1 C1 1 C2 2 3 C3 C5 4 VA3 EVLC18S02015 0 1u C17 EVLC18S02015 VA2 EVLC18S02015 SEVY0003801 VA4 EVLC18S02015 VA5 VREG_USIM_2 85V USIM_P_RST_N USIM_P_CLK USIM_P_DATA USIM_P_CLK VREG_USIM_2 85V ...

Page 106: ...Camera Troubleshooting VGA Camera control signals are generated by MSM6280 Start VREG_VGA_2 8V is 2 8V C10 VREG_CAM_2 7V is 2 7V FB1 Yes NO END Camera is OK Check the camera connector and reconnect the camera Change the Main board Camera is OK Check the CAM_MCLK Change the camera Yes Yes NO NO NO END Yes Change the Main board Change the Main board ...

Page 107: ...3 14 15 16 17 18 19 2 20 3 4 5 6 7 AXK720147G ENBY0019501 CN3 1 10 11 PRSB6 8C D4 PRSB6 8C VA4 0 1u C10 1u C9 HB 1M1005 600JT FB1 VA5 PRSB6 8C VA3 PRSB6 8C CAM_MCLK VREG_CAM_2 7V VREG_VGA_CAM_2 8V CAM_VGA_RESET CAM_DATA 0 CAM_VGA_PWDN CAM_DATA 1 CAM_PCLK CAM_DATA 2 CAM_DATA 3 CAM_DATA 4 CAM_DATA 5 CAM_DATA 7 CAM_DATA 6 CAM_HSYNC CAM_VSYNC CAM_I2C_SDA CAM_I2C_SCL CAM_MCLK VGA CAM ...

Page 108: ...ting 2 Mega Camera control signals are generated by MSM6280 Start VREG_CAM_1 8V is 1 8V C1563 VREG_CAM_2 7V is 2 7V C1564 VREG_2M_CAM_2 8V is 2 8V C1566 Yes NO END Camera is OK Check the camera connector and reconnect the camera Change the Main board Camera is OK Check the CAM_MCLK Change the camera Yes Yes NO NO NO END Yes Change the Main board Change the Main board ...

Page 109: ... 23 24 25 26 27 28 29 ENBY0028501 AXT340164 CN837 G1 G2 G3 G4 1 10 11 12 13 14 C1609 1000 pF C1564 0 1u 0 1u C1565 10 resistor R2001 C1563 0 1u FB9 HB 1M1005 600JT 33p C2013 VREG_2M_CAM_2 8V CAM_PCLK SPK_P CAM_MAINCLK VREG_CAM_1 8V VREG_CAM_2 7V CAM_DATA 7 CAM_DATA 6 CAM_DATA 5 CAM_DATA 4 CAM_DATA 3 CAM_DATA 2 CAM_DATA 1 CAM_DATA 0 CAM_VSYNC CAM_HSYNC CAM_I2C_SCL CAM_I2C_SDA CAM_2M_RESET CAM_2M_PW...

Page 110: ...oubleshooting Key Pad LED Light is on as below Key pressing SUB_LED_DRV_N is Low KEYPAD LED Lighting on Start Change the Main board Check battery NO Yes Yes Key press Change the Main board Yes NO SUB_LED_DRV_N is Low KEYPAD LED Lighting on KEYPAD LIGHTING R50 47 CL 435F WQ SD TS LD4 R51 47 CL 435F WQ SD TS EDLH0014302 LD3 VPWR SUB_LED_DRV_N KEYPAD LED position ...

Page 111: ... Close Open Event Hall sensor U504 pin OUT is triggered MSM6280 Sense the Slide Event Start Change the Main board Insert the magnet Check the magnet in Slide Assy Approach the magnet to U504 Slide U504 pin is C489 Yes NO Yes Change the U504 NO Magnet position U504 U504 0603 0603 0603 Hall Sensor U504 TK60012BM5 EUSY0268101 2 GND1 GND2 5 6 IO_VDD 3 NC OUT 4 1 VDD 47 R402 C410 0 1u C489 33p VREG_MSM...

Page 112: ...rated by MSM6280 The signal path is MSM6280 CN833 CN4 80pin Con CN5 CN3 40pin Con CN2 LCD zip Con LCD Module Start GO to power on trouble shooting Key LED is on Yes NO Press END key Disconnect and reconnect The LCD connector 80pin Con END LCD display OK No Yes Change the Main board Yes Disconnect and reconnect The LCD connector 40pin Con Yes Disconnect and reconnect The LCD connector LCD zip Con Y...

Page 113: ...Receiver Path MSM6280 RCV RCV CN833 Slide FPCB Receiver Start The sine wave appears at PIN3 PIN4 of Slide FPCB CON4 Change the Main board YES Connect the phone to network Equipment and setup call Setup 1KHz tone out NO The sine wave appears at PIN3 PIN4 of CN833 YES NO Can you hear the tone Change receiver YES NO END Slide FPCB re connecting ...

Page 114: ...LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING 115 CON833 CON4 Receiver 1KHz Sine wave ...

Page 115: ...OOTING 116 4 14 Headset path MSM6280 HPH_R HPH_L DAC AMP U575 C1660 C1666 CON838 Ear jack Start Sine wave appears at C1660 C1666 Change the headset YES Connect the phone to network equipment and setup call Setup 1KHz tone out and insert headset NO Can you hear the tone YES END Re solder C1660 C1666 or Change the Main board NO ...

Page 116: ...LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING 117 C1660 C1666 1KHz Sine wave ...

Page 117: ... 118 4 15 Speaker phone path MSM6280 HPH_R HPH_L DAC AMP U575 connector Speaker Start Connect the phone to network equipment and setup call Setup 1KHz tone out Sine wave appears at D18 and D19 Check D18 D19 or Change the Main board NO Connecting speaker OK Re connect speaker NO Can you hear the tone Change the speaker NO YES END YES ...

Page 118: ...LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING 119 Connector for Speaker CAMERA D19 D18 1KHz Sine wave ...

Page 119: ...e MIC300 C323 C324 MIC1P MIC1N MSM6280 Start MICBIAS C24 or C29 is 1 8V Change main board NO Make a call Change the MIC NO YES Change the Main board Make sound to MIC Work well END YES NO YES Sine wave appears at C27 C28 YES MIC 0 R40 NA C31 C27 0 1u 1u C24 33p C1 10u C29 0 1u C28 G1 2 3 G2 5 G3 1 OUT PWR 4 SUMY0010602 SP0204LE5 PB MIC1 MICBIAS MIC1P MIC1N ...

Page 120: ...LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING 121 MIC1 C24 C29 C27 C28 C24 OR C29 C27 OR C28 ...

Page 121: ...nc All right reserved Only for training and service purposes Start EAR_SENSE_N VA541 is 0V Yes END Make a call Change the MAIN board VREG_MSMP is biased by 2 7V R1108 Change the Main PCB Yes OK NO NO NO Change the headset and retry YES Change MAIN board Sine wave appears at C760 Change the headset or Main board and retry NO Yes ...

Page 122: ...0 11 12 13 14 2 3 4 5 6 7 8 9 ENJE0004401 HSEJ 10S 05 CN838 1 100K R1109 EVLC5S01015 VA541 R1110 100K 39 R1127 C1712 10p RSB6 8CST2R D25 R1126 39 R1108 100K 33p C1714 NA R1052 D24 RSB6 8CST2R C760 22n 2 2K R1095 C622 33p 10p C1713 VA546 EVLC5S01015 SEVY0008102 10p C651 D23 RSB6 8CST2R VA544 EVLC5S01015 HP_R HP_L EAR_SENSE_N STEREO_DET_N HOOK_SENSE_N MIC2P VREG_MSMP_2 7V VREG_MSMP_2 7V ...

Page 123: ...or AP131 AP_MOTOR_N Slide FPCB Motor Start MOTOR_N is under 2V Operate the Vibrator Change the MAIN board or Check the Slide FPCB NO YES Change vibrator Main Board R1444 100K 100p C1642 2 GND VIN 1 3 VOUT SUY98005LT1G U573 AP_MOTOR_EN MOTOR_N MOTOR C2 10p PRSB6 8C D1 MOT_N D2 PRSB6 8C R9 39 RB521S 30 EDSY0011901 D7 C15 1u 39 R10 MOT_P MOTOR_N VPWR ...

Page 124: ...run the LGMDP application Before getting started set up LGMDP preferences from the Preferences of the file menu the way you want Click on the File menu and select Preferences Play a success sound This is an experimental feature To enable this simply check the box It will be played a wav file when the download has been completed Automatically run Select Port When LGMDP starts This option is designe...

Page 125: ... 5 DOWNLOAD 126 1 Connecting to PC Click on the Select Port and then Select Port window will be pop up Check if state shows Enable for the port to be connected for downloading images Then click on the Connect button The port number COM9 and model name shall be different from that of the port number in the snapshot ...

Page 126: ...ed Only for training and service purposes 5 DOWNLOAD 127 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 ...

Page 127: ...ctronics Inc All right reserved Only for training and service purposes The following slide describes how to use or set options in detail The model name shall be different from that of the model name in the snapshot 5 DOWNLOAD 128 1 2 3 6 4 5 7 8 ...

Page 128: ...e_EFS The calibration data user contents media and module are erased Only calibration data is kept when NV backup restore is checked Keep All Contents Maintain user data including WAP AD DRM Email Play lists images When downloading a new images user data stated above are maintained if this option is enable 5 Additional Options Display Information is defaulty not selected and user cannot choose Sec...

Page 129: ...lder 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 if you select the image folder the program will automatically load images accordingly LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes ...

Page 130: ...ou select the image folder the program will automatically load images accordingly LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Automatically load images ...

Page 131: ...V file from the LGMDP installation directory by clicking on the Browse button Click on the START button to start downloading Normally LGMDP will downloaded all files that need downloading To download selected image file only simply select the image file that user want to process downloading LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service pur...

Page 132: ...g flow chart is whole process for downloading images to the handset You will see snapshots for each step in the succeeding slides LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes ...

Page 133: ...forms 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 Downloading the AMSS modem image 5 DOWNLOAD 134 ...

Page 134: ...135 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 Rebooting the handset and re establishing the connection Erasing the existing directories and files before downloading the selected Media image ...

Page 135: ...opyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 5 DOWNLOAD 136 Downloading Media image in progress Downloading Module image in progress Downloading process has completed successfully ...

Page 136: ... training and service purposes 5 DOWNLOAD 137 4 Tools Device Manager allows to monitor current hardware that is installed on your PC Device Manager is designed to monitor USB connectivity and check where the COM has been installed Select Device Manager from the Tools of the file menu ...

Page 137: ...nction is very useful for debugging Select Log Extractor from the Tools of the file menu and connect the phone with LGMDP by clicking on the Connect button When clicking on the Connect button this checks if the appropriate files such as LFAPP RecMngr bin err directory Debugging_Tip txt or Hidden_info bin are placed on the handset If they are exist then appropriate check boxes are checked according...

Page 138: ...WNLOAD 5 3 Troubleshooting Download Errors 1 NV Restore error When you meet the NV Restore error LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes ...

Page 139: ... 140 5 DOWNLOAD Connect to the phone LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes ...

Page 140: ... 141 5 DOWNLOAD Click on Cancel LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes ...

Page 141: ... several NV Backup files nv2 are shown The files are saved every NV Backup The name is based on the time when NV Backup is done LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes ...

Page 142: ...Caution 1 Not recommended that multi downloading using the USB hub 2 Recommendsed that the Module and Media Image have to be downloaded at the same time LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes ...

Page 143: ...WNLOAD If you want image download and NV backup file restore at once use the NV Default function LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes ...

Page 144: ... module image connect the phone normal mode after emergency mode download and then you can do it 4 The NV data saved at LGMDP folder like this 5 Recommended that the Module and Media Image have to be downloaded at the same time 6 Erase EFS option will erase everything media module nv items and user data in the EFS area LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only...

Page 145: ... GSM UMTS RF Block 6 BLOCK DIAGRAM LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Fig 2 1 1 UMTS 800 2100 GSM 900 DCS 1800 PCS 1900 RF Functional Block Diagram ...

Page 146: ... 147 6 BLOCK DIAGRAM LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Table 6 1 1 RF Block Component ...

Page 147: ... 148 6 BLOCK DIAGRAM 6 2 Interface Diagram LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes L704i Interface Diagram ...

Page 148: ...signal UMTS 2100 RX UMTS 2100 Rx RF signal TX_I Q I Q for Tx of RF RX_I Q I Q for Rx of RF Control signal ANT_SEL 0 1 2 Front End Module Mode Selection UMTS GSM900 Tx Rx DCS Tx Rx PCS Tx Rx GSM PA_CTL signal GSM_PA_BAND DCS or PCS GSM Mode Selection GSM_PA_EN Power Amp Gain Control Enable GSM_PA_RAMP Power Amp Gain Control UMTS PA_CTL signal PA_ON1 2 UMTS Tx Power Amp Enable LGE Internal Use Only ...

Page 149: ... 150 6 BLOCK DIAGRAM Top Side LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes ...

Page 150: ... 151 6 BLOCK DIAGRAM Bottom Side LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes ...

Page 151: ... 152 LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes ...

Page 152: ...304 1K C1612 33p 33p C1376 0 01u C1596 L24 180p 1 5nH C1700 C1405 390p 15nH L41 C1703 120p GND4 68p C1380 6 8nH L2000 0 01u 22p C1701 C1616 1nH L2001 0 R1305 100p 6p C1422 C1430 100 R1427 L44 NA C1469 NA C2002 0 5p 100p 0 1u C1619 C1611 C1694 33p 18nH L16 ANT 2 2n C1519 0 1u C1696 C1589 10u 68p C1398 56p C1667 6 8nH L11 10p C1461 100 R1281 GND3 5 7 GND4 8 GND5 9 GND6 RX 3 1 TX FL18 EFSD835MF2S2 SD...

Page 153: ...A23 A22 MDDIC_DATP MDDIC_STBN B23 B22 MDDIC_STBP MDDIH_DATN B19 HKAIN5 AB23 HPH_L W17 AA17 HPH_R AA19 HPH_VREF N16 I2C_SCL_GPIO27 K21 I2C_SDA_GPIO26 AB25 I_IM_CH0 V25 I_IM_CH1 AC25 I_IP_CH0 W25 I_IP_CH1 I_OUT B13 I_OUT_N A13 R21 KEYSENSE0_N_GPIO62 KEYSENSE1_N_GPIO63 P19 KEYSENSE2_N_GPIO46 D14 KEYSENSE3_N_GPIO47 R23 B8 GRFC0_GPIO3 A8 GRFC1_AUX_SBDT_GPIO4 D9 GRFC2_GPIO5 F10 GRFC3_GPIO6 GRFC4_AUX_SBC...

Page 154: ... DQ25 R10 DQ26 DQ27 P11 DQ28 R11 P12 DQ29 V5 DQ3 R12 DQ30 DQ31 R13 U5 DQ4 T6 DQ5 DQ6 V6 U7 DQ7 DQ8 T9 CLK C8 DQ0 U4 T4 DQ1 DQ10 V10 DQ11 T11 U11 DQ12 V11 DQ13 T12 DQ14 DQ15 U12 DQ16 P3 DQ17 R3 P4 DQ18 R4 DQ19 DQ2 T5 DQ20 P5 DQ21 R5 A10 E4 D9 A11 C9 A12 E3 A2 A3 E2 A4 D12 A5 C12 D11 A6 C11 A7 A8 D10 A9 C10 M3 ALE BA0 C4 BA1 D4 CKE D8 CLE M4 EUSY0333402 U581 TYA000BC00HOGG C3 A0 D3 A1 C760 22n TP329...

Page 155: ...DT 48 VBACKUP 49 SBCK 5 ISNS_M 50 VREG_MSMP 51 VSW_MSME 38 RUIM_CLK MPP10 39 VREG_MMC 4 CHG_CTL_N 40 RUIM_M_RST MPP5 41 VDD_RUIM 42 VREG_RUIM 43 RUIM_RST MPP6 44 ISNS_P 30 RUIM_M_IO MPP11 31 VSW_MSMC 32 VREG_MSMC 33 VDD_MSMC 34 RUIM_M_CLK MPP9 35 VDD_MSME 36 VREG_MSME 37 23 KPD_DRV_N 24 KPDPWR_N 25 VIB_DRV_N 26 RUIM_IO MPP12 27 VSW_PA 28 VREG_PA 29 VDD_PA 3 16 USB_VBUS 17 USB_DAT 18 USB_D_P 19 USB...

Page 156: ...istor R2001 2 4 6 8 1 3 5 7 10K RA500 0 1u C1562 33p C1604 C1563 0 1u EVLC5S01015 VA516 10K R403 FB9 HB 1M1005 600JT R1462 NA R1459 NA RSB6 8CST2R D26 VA523 EVLC5S01015 R1404 3 3K 33p 33p C2012 C2013 R1380 0 33p C1575 0 R1454 C1573 33p G2 1 INOUT_A1 INOUT_A2 2 3 INOUT_A3 INOUT_A4 4 INOUT_B1 9 INOUT_B2 8 INOUT_B3 7 6 INOUT_B4 INOUT_B2 8 7 INOUT_B3 INOUT_B4 6 SFEY0011701 ICVE10184E070R100FR FL30 5 G...

Page 157: ... OJ2 NINE R14 80 6K TWO R35 100ohm 51K R29 TP2 56nH L3 MUSIC R51 47 33p DOWN C2 R31 51K EVLC18S02015 SEVY0003801 VA4 CL 435F WQ SD TS EDLH0014302 LD3 EVLC18S02015 VA5 EVLC18S02015 33p C1 VA8 1 2 3 4 5 6 THREE PLR0504F D2 1K R49 Q4 KRC404V B C E R24 680K 10u C29 0 1u C28 R43 47 G1 2 3 G2 5 G3 1 OUT PWR 4 1 2 3 4 5 SUMY0010602 SP0204LE5 PB MIC1 C 22u ENZY0019501 HSBC 3P 21 CN3 22u 22u C C R 33K 33K ...

Page 158: ...EDLH0014102 CL 197TD2 CD T LD1 TP4 CAM_I2C_SCL CAM_I2C_SDA CAM_2M_RESET CAM_DATA 7 CAM_DATA 6 CAM_DATA 5 CAM_DATA 4 CAM_DATA 3 CAM_DATA 2 CAM_DATA 1 CAM_DATA 0 CAM_VSYNC CAM_HSYNC VREG_2M_CAM_2 8V VREG_CAM_2 7V VREG_CAM_1 8V CAM_INDI_LED VPWR SPK_P SPK_N SPK_P SPK_N CAM_HSYNC CAM_VSYNC CAM_DATA 1 CAM_DATA 3 CAM_DATA 5 CAM_DATA 7 CAM_I2C_SDA CAM_2M_PWDN VREG_CAM_2 7V VREG_2M_CAM_2 8V CAM_PCLK VPWR ...

Page 159: ...014201 CL 482S TR1 CD TS LD902 LD900 1 A C 2 EDLH0014201 CL 482S TR1 CD TS LD905 A 1 C 2 EDLH0014201 CL 482S TR1 CD TS OK UP 22 R6 22 R5 22 R1 22 R4 22 R3 22 R2 CLR RIGHT DOWN EDLH0014201 CL 482S TR1 CD TS LD904 A 1 C 2 CL 482S TR1 CD TS EDLH0014201 A 1 C 2 LEFT LD903 MENU CONF SEND VPWR TOUCH_I2C_SDA SENSE0 SENSE2 KEY_LED_DRV_N SENSE0 SENSE2 SENSE4 SENSE6 SENSE7 SENSE5 SENSE8 SENSE1 SENSE3 TOUCH_...

Page 160: ...6 C10 TOUCH_I2C_SCL VREG_LCD_2 8V VREG_TOUCH_OUT EBI2_DATA 8 EBI2_DATA 9 EBI2_DATA 10 EBI2_DATA 11 EBI2_DATA 12 EBI2_DATA 13 EBI2_DATA 14 EBI2_DATA 15 EBI2_DATA 0 LCD_BL_CTRL EBI2_DATA 1 EBI2_DATA 2 EBI2_DATA 3 EBI2_DATA 4 EBI2_DATA 5 EBI2_DATA 6 EBI2_DATA 7 VPWR LCD_BL_CTRL LCD_RESET_N LCD_MAKER_ID EBI2_WE_N LCD_ADS LCD_CS_N TOUCH_I2C_SDA TOUCH_I2C_SCL TOUCH_ATTN_N KEY_LED_DRV_N VPWR KEY_LED_DRV_...

Page 161: ...OTOR_N KEY_LED_DRV_N LCD_MAKER_ID LCD_RESET_N EBI2_DATA 8 EBI2_DATA 9 EBI2_DATA 10 EBI2_DATA 11 EBI2_DATA 12 EBI2_DATA 13 EBI2_DATA 14 EBI2_DATA 15 EBI2_DATA 0 LCD_BL_CTRL EBI2_DATA 1 EBI2_DATA 2 EBI2_DATA 3 EBI2_DATA 4 EBI2_DATA 5 EBI2_DATA 6 EBI2_DATA 7 VREG_VGA_CAM_2 8V VREG_LCD_2 8V VREG_TOUCH_OUT UART_TXM RC_DATA RCV RCV TOUCH_PWR_EN CAM_DATA 5 VPWR VREG_LCD_2 8V LCD_2 8V_EN VPWR VREG_TOUCH_O...

Page 162: ...nal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 8 BGM Pin Map 163 8 BGM Pin Map 1 MSM6280 409 CSP land pattern drawing 2 Memory Bottom view NOT IN USE USE ...

Page 163: ... 164 8 BGM Pin Map 3 DAC 4 Audio Process LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes NOT IN USE USE 39 balls WLCSP Bottom View ...

Page 164: ... 165 9 PCB LAYOUT LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes U1 SO1G20010 Touch Sensing ...

Page 165: ...al Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes CN1 AXK7L10227G Touch FPCB Connector 10pin CN2 IMSA 9671S 35Y902 LCD Connector 34pin CN3 AXK7L40227G LCD Touch Connector 40Pin ...

Page 166: ...167 9 PCB LAYOUT LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes U3 RPM840 H11 IrDA IrRC Module CN3 AXK720147G VGA Camera Connector 24pin ...

Page 167: ...100 Can t Rx U578 AWT6277R WCDMA 2100 Can t Tx U551 RTR6275 WCDMA GSM Can t T Rx FL18 EFSD835MF2S2 WCDMA 800 Can t T Rx FL31 EFCH836MTDB1 WCDMA 800 Can t Tx U574 AWT6307R WCDMA 800 Can t Tx FL33 EFCH881MTDAA WCDMA 800 Can t Rx U553 RFR6275 WCDMA 2100 Can t Rx CN833 AXK880145WG Slide Interface Connector LCD VGA CAM Touch U545 AP131 Audio Processor with SD Interface U507 MSM6280 Main Processor with ...

Page 168: ...ining and service purposes CN804 RA1R011H11 I O Connector U552 UPG2010TB E3 ARIB RF Can t T Rx SW1 KMS 507 No antenna signal U569 SKY77318 GSM Can t Tx FL34 LMSP54MA 543 WCDMA GSM Can t T Rx U513 PM6650 2M Power Management CN837 AXT340164 2M Camera Interface Connector 40pin FL32 EFCH897MTDB1 EGSM Can t Tx ...

Page 169: ...aining and service purposes CN2 GB042 30P H10 E3000 SUB Interface Connector 30pin Battery Power SD Interface CN1 GB042 30P H10 E3000 SUB Interface Connector 30pin KEY MIC USIM Interface J1 USIM Connector 6pin MIC1 SP0204LE5 PB MIC S1 49225 0821 Micro SD Connector 8pin CN3 HSBC 3P 21 Battery Connector 3Pin ...

Page 170: ...E Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes CN2 AXK7L34227G 2M Camera Interface Connector 34pin CN1 AXT440124 40pin 2M Camera Speaker Interface Connector 40pin ...

Page 171: ... 172 LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes ...

Page 172: ...alATD dll At_Serial_Cmd xml Diag_NV6250_RevB dll Diag_NV6275 dll Diag_NV6280 dll Diag_NV dll DLL_E5515CD dll Directory File Model LG_CL_015 dll PwrSupply_Cmd xml Auto Cal CalAuto ComLMPLib_2_11 dll Dll_EzLooksMQ_015 dll GuiTk115d dll HK_32 exe ShieldBox_DIID dll L704i AutoSetup_100 xml Common Cal_Setup_Test xml Ezlooks xml LG_RfCal_Q3G6280N_Polar_003 dll NstProcedure_U310_101 xml script_100 xml Sp...

Page 173: ...bration sequence functions 5 LG_NsTest_E5515C_239 dll Auto RF Test DLL File including RF Test sequence functions 6 DLL_E5515CD DLL GPIB DLL File including measuring functions in E5515CD Test Set 10 2 How to use HOT KIMCHI Procedure 1 Click Logic Operation of SETTING menu bar 2 Select UART Port that PC can communicate with the phone 3 Select LOGIC MODE that you want Logic Mode 1 Calibration Only 2 ...

Page 174: ...Test Program Hot Kimchi Procedure 4 Select the model name L704i 5 Click Start button LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes L704i Select L704i Click Start ...

Page 175: ... 176 LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes ...

Page 176: ... 35 36 38 37 34 24 33 30 29 21 27 26 23 21 20 19 13 12 11 10 9 6 5 4 3 2 11 EXPLODED VIEW REPLACEMENT PART LIST 11 1 EXPLODED VIEW LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes ...

Page 177: ...82 81 80 79 74 73 72 71 69 28 22 61 64 65 67 75 76 77 78 70 85 86 48 87 41 92 93 21 20 19 15 14 13 12 11 54 50 30 48 45 47 53 51 55 56 57 58 59 60 6263 66 68 43 44 49 46 52 29 35 42 36 9 LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes ...

Page 178: ...pty Without Color 4 MTAB02 TAPE PROTECTION MTAB0142201 COMPLEX empty Without Color 4 MTAD00 TAPE WINDOW MTAD0060801 COMPLEX empty 0 2 Without Color 4 MTAD01 TAPE WINDOW MTAD0061301 COMPLEX empty Without Color 4 MTCB00 TERMINAL PIN MTCB0010401 PRESS BeCu 0 15mm Gold 4 MWAD00 WINDOW LED MWAD0006301 MOLD PC LEXAN 141R Transparent 4 MWAE00 WINDOW CAMERA MWAE0022201 CUTTING PMMA MR 200 Transparent 4 SN...

Page 179: ... 3 Black 5 MCJW00 COVER SLIDE UPPER MCJW0010501 MOLD PC LUPOY SC 1004A Black 6 MICA00 INSERT FRONT MICA0019901 M1 4 D2 2 L1 5 Gold 5 MFBB00 FILTER RECEIVER MFBB0019301 COMPLEX empty Without Color 5 MPBG00 PAD LCD MPBG0053501 COMPLEX empty Black 5 MTAB00 TAPE PROTECTION MTAB0191301 COMPLEX empty Without Color 5 MTAB01 TAPE PROTECTION MTAB0142401 COMPLEX empty Without Color 5 MTAB02 TAPE PROTECTION ...

Page 180: ...CB ASSY FLEXIBLE INSERT SACB0041201 6 MPBF00 PAD FLEXIBLE PCB MPBF0026401 COMPLEX empty Without Color 6 MPBF01 PAD FLEXIBLE PCB MPBF0026501 COMPLEX empty Without Color 6 MPBF02 PAD FLEXIBLE PCB MPBF0026701 COMPLEX empty Without Color 6 MPBF03 PAD FLEXIBLE PCB MPBF0026801 COMPLEX empty Without Color 6 MPBF04 PAD FLEXIBLE PCB MPBF0026901 COMPLEX empty Without Color 6 MTAJ00 TAPE FLEXIBLE PCB MTAJ000...

Page 181: ...ECTOR BOARD TO BOARD ENBY0019501 20 PIN 4 mm ETC H 1 5 Socket 7 D1 DIODE TVS EDTY0008606 DFN 2 7 82 V 150 mW R TP PB FREE 7 D2 DIODE TVS EDTY0008606 DFN 2 7 82 V 150 mW R TP PB FREE 7 D3 DIODE TVS EDTY0008606 DFN 2 7 82 V 150 mW R TP PB FREE 7 D4 DIODE TVS EDTY0008606 DFN 2 7 82 V 150 mW R TP PB FREE 7 D5 DIODE TVS EDTY0008606 DFN 2 7 82 V 150 mW R TP PB FREE 7 D6 DIODE TVS EDTY0008606 DFN 2 7 82 ...

Page 182: ...5 R TP 7 CN900 CONNECTOR BOARD TO BOARD ENBY0018501 10 PIN 4 mm STRAIGHT H 0 9 HEADER 7 LD900 DIODE LED CHIP EDLH0014201 ORANGE ETC R TP 1 8x1 1x0 35 empty 78mW empty empty empty 7 LD901 DIODE LED CHIP EDLH0014201 ORANGE ETC R TP 1 8x1 1x0 35 empty 78mW empty empty empty 7 LD902 DIODE LED CHIP EDLH0014201 ORANGE ETC R TP 1 8x1 1x0 35 empty 78mW empty empty empty 7 LD903 DIODE LED CHIP EDLH0014201 ...

Page 183: ...20301 40 PIN 0 4 mm ETC H 0 9 Socket 7 D1 DIODE TVS EDTY0009401 VMN2 5 V 10 W R TP 1 0 0 6 0 4 7 82V 100mW empty empty 2P 1 7 D2 DIODE TVS EDTY0009401 VMN2 5 V 10 W R TP 1 0 0 6 0 4 7 82V 100mW empty empty 2P 1 7 D3 DIODE TVS EDTY0009401 VMN2 5 V 10 W R TP 1 0 0 6 0 4 7 82V 100mW empty empty 2P 1 7 FB1 FILTER BEAD CHIP SFBH0000909 60 ohm 1005 7 R14 RES CHIP MAKER ERHZ0000486 47 Kohm 1 16W J 1005 R...

Page 184: ...HIP ECCH0000182 0 1 uF 10V K X5R HD 1005 R TP 7 C28 CAP CERAMIC CHIP ECCH0000182 0 1 uF 10V K X5R HD 1005 R TP 7 C29 CAP TANTAL CHIP ECTH0001902 10 uF 10V M L_ESR 1608 R TP 7 C32 CAP TANTAL CHIP ECTH0004101 22 uF 6 3V M STD 1608 R TP 7 C33 CAP TANTAL CHIP ECTH0004101 22 uF 6 3V M STD 1608 R TP 7 C34 CAP TANTAL CHIP ECTH0004101 22 uF 6 3V M STD 1608 R TP 7 CN1 CONNECTOR BOARD TO BOARD ENBY0040601 3...

Page 185: ... J 1005 R TP 7 R35 RES CHIP ERHY0003301 100 ohm 1 16W J 1005 R TP 7 R40 RES CHIP MAKER ERHZ0000401 0 ohm 1 16W J 1005 R TP 7 R41 RES CHIP MAKER ERHZ0000420 150 ohm 1 16W J 1005 R TP 7 R42 RES CHIP MAKER ERHZ0000402 10 ohm 1 16W J 1005 R TP 7 R43 RES CHIP MAKER ERHZ0000483 47 ohm 1 16W J 1005 R TP 7 R44 RES CHIP MAKER ERHZ0000493 51 Kohm 1 16W J 1005 R TP 7 R45 DIODE TVS EDTY0008606 DFN 2 7 82 V 15...

Page 186: ...3 AFBA00 FRAME ASSY SHIELD AFBA0005301 Black 4 AFBD00 FRAME ASSY SHIELD SUB AFBD0000201 Without Color 4 SACY00 PCB ASSY FLEXIBLE SACY0052301 5 SACB00 PCB ASSY FLEXIBLE INSERT SACB0041301 5 SACE00 PCB ASSY FLEXIBLE SMT SACE0046901 CAM FPCB 6 SACD00 PCB ASSY FLEXIBLE SMT TOP SACD0038601 CAM FPCB TOP 7 CN1 CONNECTOR BOARD TO BOARD ENBY0028401 40 PIN 0 4 mm ETC H 1 5 P4S Header 7 CN2 CONNECTOR BOARD T...

Page 187: ...CCH0004904 1 uF 6 3V K X5R TC 1005 R TP 6 C1533 CAP CHIP MAKER ECZH0001215 1 uF 10V K X5R TC 1005 R TP 6 C1563 CAP CERAMIC CHIP ECCH0009101 0 1 uF 6 3V K X5R TC 0603 R TP 6 C1564 CAP CERAMIC CHIP ECCH0009101 0 1 uF 6 3V K X5R TC 0603 R TP 6 C1565 CAP CERAMIC CHIP ECCH0009101 0 1 uF 6 3V K X5R TC 0603 R TP 6 C1566 CAP CERAMIC CHIP ECCH0009101 0 1 uF 6 3V K X5R TC 0603 R TP 6 C1589 CAP TANTAL CHIP E...

Page 188: ...P ECCH0000182 0 1 uF 10V K X5R HD 1005 R TP 6 C566 CAP CERAMIC CHIP ECCH0000182 0 1 uF 10V K X5R HD 1005 R TP 6 C569 CAP CERAMIC CHIP ECCH0009101 0 1 uF 6 3V K X5R TC 0603 R TP 6 C610 CAP CHIP MAKER ECZH0025920 1000 pF 16V K X7R HD 0603 R TP 6 C611 CAP CERAMIC CHIP ECCH0000143 1 nF 50V K X7R HD 1005 R TP 6 C656 CAP CHIP MAKER ECZH0001215 1 uF 10V K X5R TC 1005 R TP 6 C657 CAP CERAMIC CHIP ECCH0004...

Page 189: ...E TVS EDTY0009401 VMN2 5 V 10 W R TP 1 0 0 6 0 4 7 82V 100mW empty empty 2P 1 6 D25 DIODE TVS EDTY0009401 VMN2 5 V 10 W R TP 1 0 0 6 0 4 7 82V 100mW empty empty 2P 1 6 FB1 FILTER BEAD CHIP SFBH0002302 120 ohm 1608 CHIP BEAD 2000mA 6 FB9 FILTER BEAD CHIP SFBH0000909 60 ohm 1005 6 FL1 FILTER EMI POWER SFEY0006501 SMD 3 TERMINAL EMI FILTER 6 FL32 FILTER SAW SFSY0030201 897 5 MHz 1 4 1 1 0 6 SMD Pb fr...

Page 190: ...9505 10 Kohm 1 20W 0 05W J 0603 R TP 6 R1340 RES CHIP ERHY0009527 47 Kohm 1 20W 0 05W J 0603 R TP 6 R1341 RES CHIP ERHY0009527 47 Kohm 1 20W 0 05W J 0603 R TP 6 R1350 RES CHIP ERHY0009506 100 Kohm 1 20W 0 05W J 0603 R TP 6 R1356 RES CHIP ERHY0009506 100 Kohm 1 20W 0 05W J 0603 R TP 6 R1357 RES CHIP ERHY0009506 100 Kohm 1 20W 0 05W J 0603 R TP 6 R1358 RES CHIP ERHY0009506 100 Kohm 1 20W 0 05W J 060...

Page 191: ...ECCH0009101 0 1 uF 6 3V K X5R TC 0603 R TP 6 C1209 CAP CERAMIC CHIP ECCH0009101 0 1 uF 6 3V K X5R TC 0603 R TP 6 C1210 CAP CERAMIC CHIP ECCH0009101 0 1 uF 6 3V K X5R TC 0603 R TP 6 C1211 CAP CERAMIC CHIP ECCH0009101 0 1 uF 6 3V K X5R TC 0603 R TP 6 C1212 CAP CERAMIC CHIP ECCH0009101 0 1 uF 6 3V K X5R TC 0603 R TP 6 C1213 CAP CERAMIC CHIP ECCH0009101 0 1 uF 6 3V K X5R TC 0603 R TP 6 C1214 CAP CERAM...

Page 192: ... 5 pF 50V C NP0 TC 1005 R TP 6 C1448 CAP CHIP MAKER ECZH0000816 12 pF 50V J NP0 TC 1005 R TP 6 C1449 CAP CERAMIC CHIP ECCH0000110 10 pF 50V D NP0 TC 1005 R TP 6 C1450 CAP CHIP MAKER ECZH0000816 12 pF 50V J NP0 TC 1005 R TP 6 C1456 CAP CERAMIC CHIP ECCH0000127 82 pF 50V J NP0 TC 1005 R TP 6 C1465 CAP CERAMIC CHIP ECCH0000120 39 pF 50V J NP0 TC 1005 R TP 6 C1471 CAP CERAMIC CHIP ECCH0000196 0 75 pF ...

Page 193: ... CHIP ECCH0009104 33 pF 50V J X7R TC 0603 R TP 6 C1612 CAP CERAMIC CHIP ECCH0009104 33 pF 50V J X7R TC 0603 R TP 6 C1613 CAP CERAMIC CHIP ECCH0000198 2 2 uF 6 3V M X5R TC 1005 R TP 6 C1615 CAP CERAMIC CHIP ECCH0009103 100 pF 50V J X7R TC 0603 R TP 6 C1616 CAP CERAMIC CHIP ECCH0009505 22 pF 25V J NP0 TC 0603 R TP 6 C1618 CAP CERAMIC CHIP ECCH0009104 33 pF 50V J X7R TC 0603 R TP 6 C1619 CAP CERAMIC ...

Page 194: ...P ECCH0009505 22 pF 25V J NP0 TC 0603 R TP 6 C1693 CAP CERAMIC CHIP ECCH0000182 0 1 uF 10V K X5R HD 1005 R TP 6 C1694 CAP CERAMIC CHIP ECCH0000182 0 1 uF 10V K X5R HD 1005 R TP 6 C1695 CAP CERAMIC CHIP ECCH0000182 0 1 uF 10V K X5R HD 1005 R TP 6 C1696 CAP CERAMIC CHIP ECCH0000182 0 1 uF 10V K X5R HD 1005 R TP 6 C1698 CAP CERAMIC CHIP ECCH0000182 0 1 uF 10V K X5R HD 1005 R TP 6 C1699 CAP CERAMIC CH...

Page 195: ... CERAMIC CHIP ECCH0009106 10 nF 16V K X7R TC 0603 R TP 6 C533 CAP CERAMIC CHIP ECCH0009106 10 nF 16V K X7R TC 0603 R TP 6 C534 CAP CERAMIC CHIP ECCH0009106 10 nF 16V K X7R TC 0603 R TP 6 C535 CAP CERAMIC CHIP ECCH0009106 10 nF 16V K X7R TC 0603 R TP 6 C536 CAP CERAMIC CHIP ECCH0009106 10 nF 16V K X7R TC 0603 R TP 6 C537 CAP CERAMIC CHIP ECCH0009106 10 nF 16V K X7R TC 0603 R TP 6 C538 CAP CERAMIC C...

Page 196: ...01 0 1 uF 6 3V K X5R TC 0603 R TP 6 C785 CAP CERAMIC CHIP ECCH0009101 0 1 uF 6 3V K X5R TC 0603 R TP 6 C786 CAP CERAMIC CHIP ECCH0009106 10 nF 16V K X7R TC 0603 R TP 6 CN833 CONNECTOR BOARD TO BOARD ENBY0019801 80 PIN 0 4 mm ETC H 1 5 Header 6 CN834 CONNECTOR BOARD TO BOARD ENBY0040701 30 PIN mm ETC 0 40MM STRAIGHT FEMALE SMD R TP 1 0 6 CN835 CONNECTOR BOARD TO BOARD ENBY0040701 30 PIN mm ETC 0 40...

Page 197: ...J 1005 R TP Pb Free 6 L24 INDUCTOR CHIP ELCH0001404 1 5 nH S 1005 R TP 6 L25 INDUCTOR CHIP ELCH0001404 1 5 nH S 1005 R TP 6 L27 INDUCTOR CHIP ELCH0001406 4 7 nH S 1005 R TP PBFREE 6 L28 INDUCTOR CHIP ELCH0001406 4 7 nH S 1005 R TP PBFREE 6 L31 INDUCTOR CHIP ELCH0001412 1 8 nH S 1005 R TP PBFREE 6 L36 INDUCTOR CHIP ELCH0001401 15 nH J 1005 R TP Pb Free 6 L48 INDUCTOR CHIP ELCH0005006 33 nH J 1005 R...

Page 198: ...1229 RES CHIP ERHY0009506 100 Kohm 1 20W 0 05W J 0603 R TP 6 R1264 RES CHIP ERHY0009506 100 Kohm 1 20W 0 05W J 0603 R TP 6 R1285 RES CHIP ERHY0009524 47 ohm 1 20W 0 05W J 0603 R TP 6 R1287 RES CHIP ERHY0009524 47 ohm 1 20W 0 05W J 0603 R TP 6 R1288 RES CHIP MAKER ERHZ0000351 11800 ohm 1 16W F 1005 R TP 6 R1289 RES CHIP ERHY0005902 5 62 Kohm 1 16W F 1005 R TP 6 R1290 RES CHIP MAKER ERHZ0000310 680 ...

Page 199: ... ohm 1 16W F 1005 R TP 6 R2002 RES CHIP ERHY0009527 47 Kohm 1 20W 0 05W J 0603 R TP 6 R402 RES CHIP ERHY0009524 47 ohm 1 20W 0 05W J 0603 R TP 6 R403 RES CHIP ERHY0009505 10 Kohm 1 20W 0 05W J 0603 R TP 6 RA500 RES ARRAY R ERNR0000403 10000 ohm ohm 8 PIN J 1 32 W SMD R TP 6 SPFY00 PCB MAIN SPFY0136801 FR 4 0 8 mm LX bump 10 6 U504 IC EUSY0268101 SON2017 6 6 PIN R TP HALL SWITCH Pb Free 6 U507 IC E...

Page 200: ...STOR SEVY0008102 5 5 V SMD 0603 6 VA518 VARISTOR SEVY0008102 5 5 V SMD 0603 6 VA519 VARISTOR SEVY0008102 5 5 V SMD 0603 6 VA522 VARISTOR SEVY0008102 5 5 V SMD 0603 6 VA523 VARISTOR SEVY0008102 5 5 V SMD 0603 6 VA524 VARISTOR SEVY0008102 5 5 V SMD 0603 6 VA525 VARISTOR SEVY0008102 5 5 V SMD 0603 6 VA526 VARISTOR SEVY0008102 5 5 V SMD 0603 6 X5 VCTCXO EXSK0007801 19 2 MHz 2 PPM 10 pF SMD 3 3 2 5 1 0...

Page 201: ...or Remark 4 ADEY01 DATA KIT ADEY0001098 L704i Data kit for NTT DoCOMo Without Color 5 MCHZ00 COMPACT DISK MCHZ0029503 PRINTING empty Without Color 3 MTAZ00 TAPE MTAZ0127603 COMPLEX empty Without Color 2 APEY00 PHONE APEY0344302 Black 3 ACGM00 COVER ASSY REAR ACGM0082901 Black 4 MCCC00 CAP EARPHONE JACK MCCC0041201 COMPLEX empty Black 4 MCCE00 CAP RECEPTACLE MCCE0033901 COMPLEX empty Black 4 MCCF00...

Page 202: ...LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Note ...

Page 203: ...LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Note ...

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