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LG HB620 Service Manual
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LG HB620 Service Manual

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Internal Use Only
Service Manual
HB620(T)/KB620
Date: June, 2008 / Issue 1.0

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Summary of Contents for LG HB620

  • Page 1 Internal Use Only Service Manual HB620(T)/KB620 Date: June, 2008 / Issue 1.0...

  • Page 2: Table Of Contents

    11.3 Accessory ..........202 4.7 Audio trouble..........84 4.8 Camera trouble ........95 4.9 Main LCD trouble ........99 4.10 Bluetooth trouble........102 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 3 - Only for training and service purposes...
  • Page 3 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 4 - Only for training and service purposes...

  • Page 4: Introduction

    The user may not make any changes and/or repairs expect as specifically noted in this manual. Therefore, note that unauthorized alternations or repair may affect the regulatory status of the system and may void any remaining warranty. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 5 -...
  • Page 5 • When returning system boards or parts like EEPROM to the factory, use the protective package as described. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 6 - Only for training and service purposes...

  • Page 6: Performance

    Yes (18 pin) Connectivity Bluetooth, USB Volume Key Push Type (+, -) External Memory Trans-Flash I/O Connect 18 Pin Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 7 - Only for training and service purposes...

  • Page 7: Usable Environment

    Humidity 85% (Max) 2.2.2 Environment (Accessory) Reference Spec. Typ. Unit TA Power Available power * CLA : 12~24V(DC). LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 8 - Only for training and service purposes...

  • Page 8: Radio Performance

    -47dBm * In case of DCS : [A] -> 1710, [B] -> 1785* In case of PCS : [A] -> 1850, [B] -> 1910 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 9 -...
  • Page 9 * In case of DCS : [A] -> 1710, [B] -> 1785* In case of PCS : [A] -> 1850, [B] -> 1910 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 10 - Only for training and service purposes...
  • Page 10 ±4 ±3 ±4 ±5 ±4 ±5 ±4 ±5 ±4 ±5 ±5 ±5 Burst timing Mask IN Mask IN Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 11 - Only for training and service purposes...
  • Page 11 Occupied Bandwidth(OBW) 5MHz(99%) Spectrum emission Mask -35-15*(∆f-2.5)dBc@∆f=2.5~3.5MHz,30k -35-1*(∆f-3.5)dBc@∆f=3.5~7.5MHz,1M -39- 10*(∆f-7.5)dBc@∆f=7.5~8.5MHz,1M -49dBc@∆f=8.5~12.5MHz,1M Adjacent Channel Leakage Ratio(ACLR) 33dB@5MHz, ACP>-50dBm 43dB@10MHz, ACP>-50dBm LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 12 - Only for training and service purposes...
  • Page 12 -31dBc@5MHz,Interferer -40dBc -41dBc@10MHz, Interferer -40dBc Error Vector Magnitude (EVM) 17.5%(>-20dBm) (@12.2K, 1DPDCH+1DPCCH) Transmit OFF Power -15dB@SF=4.768Kbps, Multi-code -15dB@SF=4.768Kbps, Multi-code Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 13 - Only for training and service purposes...
  • Page 13 Wanted Signal :-101dBm Wanted Signal :-101dBm Wanted Signal :-101dBm Unwanted : Depend on Unwanted : Depend on Frequency Frequency LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 14 - Only for training and service purposes...
  • Page 14 60dBm@f=1850 MHz ≤ f ≤ 1910 MHz, 3.84M BW -60dBm@f=824 MHz ≤ f ≤ 849 MHz, 3.84M BW Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 15 - Only for training and service purposes...

  • Page 15: Current Consumption

    Bar 1 → Empty 3.56 ± 0.1V Low Voltage, 3.56 ± 0.1V [Interval: 3min(Stand by)/1min(talk)] Power Off 3.2 ± 0.1V LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 16 - Only for training and service purposes...

  • Page 16: Sound Pressure Level

    MS/Headset SLR : 8 ± 3 dB MS/Headset RLR : -15 ± 3 dB/-12 dB (SLR/RLR : Mid-value setting) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 17 - Only for training and service purposes...

  • Page 17: Charging

    • Charging Time : Max 3 hours (except for trickle charging time) • Full charging indication current (charging icon stop current) : 193mA • Cut-off voltage : 3.20 V LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 18 - Only for training and service purposes...

  • Page 18: Technical Brief

    MSM IC. The UMTS and GSM Rx baseband outputs share the same inputs to the MSM IC. QUALCOMM’s branded chipset that implements a Zero-IF radio architecture. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 19 -...
  • Page 19 IC and higher-level handset functions. Key parameters such as under-voltage lockout and crystal oscillator signal presence are monitored to protect against detrimental conditions. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 20 - Only for training and service purposes...

  • Page 20: Gsm Mode

    Programming Interface (API) is used to implement SBI commands. The API is documented in AMSS Software - please see applicable AMSS Software documentation for details. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 21 -...
  • Page 21 DC offset corrections. The filter outputs are buffered and passed on to the MSM6280 IC for further processing. [Fig. 3.2] RTR6275 RX feature LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 22 - Only for training and service purposes...
  • Page 22 50ohm. The low-band GSM Tx path also includes a Tx-band SAW filter to remove noise-spurious components and noise that would be amplified by the PA and appear in the GSM Rx band. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 23 -...

  • Page 23: Umts Mode

    RF. This requires FLO to equal FRF, and the RTR6275 IC design achieves this without allowing FVCO to equal FRF. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 24 - Only for training and service purposes...
  • Page 24 3. TECHNICAL BRIEF [Fig. 3.4] RTR6275 IC functional block diagram Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 25 - Only for training and service purposes...

  • Page 25: Lo Generation And Distribution Circuits

    With the integrated fractional-N PLL synthesizers, the RTR6275 has the advantages of more flexible loop bandwidth control, fast lock time, and low-integrated phase error LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 26 - Only for training and service purposes...

  • Page 26: Off-Chip Rf Components

    MSM side, and isolate from digital logic and clock traces with ground on both sides, plus ground above and below if routed on internal layers. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only...
  • Page 27 - Control drivers for two external pass transistors and one external battery MOSFET - MOSFET is optional - Voltage, current and power control loops - Automated recovery from sudden momentary power loss LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 28 - Only for training and service purposes...
  • Page 28 - Vibration motor driver programmable from 1.2 to 3.1V in 100 mV increments - Speaker driver with programmable gain, turn-on time, and muting; differential operation (drives external 8 Ω speakers with volume controlled 500 mW) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 29 -...
  • Page 29 ■ Highly integrated functionality in a small package - 84-pin BCCS with a large center slug for electrical ground, mechanical stability, and thermal relief. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 30 - Only for training and service purposes...
  • Page 30 3. TECHNICAL BRIEF [Fig. 3.6] PM6650 Block Diagram Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 31 - Only for training and service purposes...
  • Page 31 TX_EN GSM_PA_EN R112 FL102 GSM_PA_BAND GSM_TX EFCH897MTDB1 R114 R115 C139 C140 C138 C141 [Fig. 3.7] GSM PAM Schematic LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 32 - Only for training and service purposes...
  • Page 32 QUALCOMM strongly recommends an isolator be used between the UMTS PA and duplexer to assure proper performance. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 33 -...
  • Page 33 DC Input level Operating temperature deg. C Storage temperature deg. C [Table 3.3] UMTS Rx SAW Filter Specification LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 34 - Only for training and service purposes...
  • Page 34 VD D _MSM VD D _MSM GND Pa rt VD D_A VD D_BAT VD D_BAT [Fig. 3.8] Bluetooth system architecture Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 35 - Only for training and service purposes...
  • Page 35 DVB-H/T signal through LCD. The DVB-H/T signal path is in the next page. [Fig. 3.9] DVB-H/T System Block Diagram [Fig. 3.10] DVB-H/T Signal Path and Components(SUB) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 36 - Only for training and service purposes...
  • Page 36 Tuner is integrated in the IC. The functions of each of the individual blocks in the diagram will be described in the following subsections. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 37 -...
  • Page 37 This block samples the differential input analog signals. The maximum sampling frequency is 30MHz and the number of bits at both outputs of the ADC is 10. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 38 - Only for training and service purposes...
  • Page 38 Monitor the Wide Band Detector in order to avoid the saturation of first amplification stage of the tuner - Application processor : Data transfer(MPE tables, sections), Monitoring and configuration Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 39 - Only for training and service purposes...
  • Page 39 3. TECHNICAL BRIEF [Fig. 3.13] DiB9080H Functional Block Diagram LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 40 - Only for training and service purposes...
  • Page 40 DATA signal ADDR[1-2 ] Address signal Ready signal Interrupt signal [Table 3.4] DVB-H/T Interface [Fig. 3.14] DVB-H/T Interface Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 41 - Only for training and service purposes...
  • Page 41 Same as Phone Deep Sleep state Average Under 300mA DVB-T Same as Phone Deep Sleep state Average Under 400mA LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 42 - Only for training and service purposes...

  • Page 42: Digital Baseband (Dbb/Msm6280)

    ■ Vocoder support (AMR, FR, EFR, HR) ■ Advanced 14 x 14 mm, 0.5 mm pitch, 409-pin lead-free CSP packaging technology ■ SD/SDIO hardware support Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 43 -...
  • Page 43 3. TECHNICAL BRIEF [Fig. 3.15] Simplified Block Diagram of Baseband LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 44 - Only for training and service purposes...

  • Page 44: Subsystem(Msm6280)

    ■ PS data rate - 384 kbps DL / 384 kbps UL ■ CS data rate - 64 kbps DL / 64 kbps UL ■ AMR (all rates) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 45 -...
  • Page 45 ■ Supports TFC selection limitation on the UL factoring in the transmissions on the HS-DPCCH as required in TS 25.133. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 46 - Only for training and service purposes...
  • Page 46 ■ PBCCH support ■ 1phase/2 phase access procedures ■ Link adaptation and IR ■ NACC, extended UL TBF. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 47 - Only for training and service purposes...
  • Page 47 - 2 chip selects supported for NAND Flash ❏ Boot from NAND ❏ Low-power SDRAM (LP-SDRAM) interface ■ Internal watchdog and sleep timers LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 48 - Only for training and service purposes...
  • Page 48 ■ Integrated stereo wideband Codec for music/digital clips ■ CMX ■ Video Codecs supported: MPEG-4, H.263, H.264, Windows Media® v9 and RealNetworks® v10 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 49 - Only for training and service purposes...
  • Page 49 ■ Scalable Vector Graphics (SVG- Tiny 1.1 + SVG Tiny 1.2) ■ MLZ decoder ■ Integrated PNG/SAF A.T. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 50 - Only for training and service purposes...
  • Page 50 3. TECHNICAL BRIEF [Table 3.6] Summary of MSM6280 device features Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 51 - Only for training and service purposes...
  • Page 51 ANSI/IEEE 1149.1A-1993 feature list. The JTAG interface can be used to test digital interconnects between devices within the mobile station during manufacture. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 52 - Only for training and service purposes...
  • Page 52 The MSM6280 device integrates a universal serial bus (USB) controller that supports both unidirectional and bidirectional transceiver interfaces. The USB controller acts as a USB peripheral communicating with the USB host. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 53 -...

  • Page 53: Power Block

    Bus Interface (SSBI)supplemented by an Interrupt Manager for time-critical information. Another dedicated IC Interface circuit monitors multiple trigger events and controls the power-on sequence. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 54 - Only for training and service purposes...
  • Page 54 3. TECHNICAL BRIEF [Fig. 3.16] PM6650 Functional Block Diagram Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 55 - Only for training and service purposes...
  • Page 55 These pins are connected to the Source (or emitter) and Drain (or collector) contacts of the pass transistor respectively. KF700 Battery Bar Display(Stand By Condition) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 56 - Only for training and service purposes...
  • Page 56 VDD to pin (VBAT). Trickle charging can be used for lithium-ion and nickel-based batteries, with its performance specified below (3.2V). The charging current is set to 80mA. Parameter Unit Trickle Current Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 57 - Only for training and service purposes...
  • Page 57 ■ Low battery alarm interval : Idle - 3 min, Dedicated - 1min ■ Cut-off voltage : 3.20V LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 58 - Only for training and service purposes...

  • Page 58: External Memory Interface

    Read Access Time FLASH TYA000BC00DOGG Toshiba 35 ns SDRAM TYA000BC00DOGG Toshiba 8 ns [Table 3.7] External memory interface Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 59 - Only for training and service purposes...
  • Page 59 3. TECHNICAL BRIEF [Fig. 3.17] Simplified Block Diagram of Memory Interface LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 60 - Only for training and service purposes...

  • Page 60: H/W Sub System

    BT_SBDT_GPIO22 BT_SBDT BT_TX_RX_N_GPIO21 BT_TX_RX_N BT_DATA_GPIO20 BT_DATA MDDIC_DATP MDDIC_DATN MDDIC_STBP MDDIC_STBN [Fig. 3.18] Schematic of RF Interface of MSM6280 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 61 - Only for training and service purposes...
  • Page 61 UART signals are connected to MSM GPIO through IO connector with 115200 bps speed. GPIO_Map Name Note GPIO_96 UART_RXD Data_Rx GPIO_95 UART_TXD Data_Tx [Table 3.8] UART Interface LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 62 - Only for training and service purposes...
  • Page 62 USB_D+ USB_D_P USB_SE0 USB_SE0 4.7u USB_D- USB_D_M GP1_DRV_N(MPP7) [Fig. 3.20] Schematic of USB block(MSM6280 Side & PM6650 Side) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 63 - Only for training and service purposes...
  • Page 63 Headset remote key detection HKADC4 PCB_Rev_ADC PCB Version Check HKADC5 Battery_THERM Battery Temperature Check [Table 3.10] HKADC channel table LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 64 - Only for training and service purposes...
  • Page 64 100ohm R908 KEY_COL[5] KEY_ROW[4] KEY_COL[0] KEY_COL[1] KEY_COL[2] KEY_COL[3] SIDE KEY KEY_COL[4] KEY MATRIX [Fig. 3.22] Main Keypad Circuit Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 65 - Only for training and service purposes...
  • Page 65 8bits data from camera module. The MEGA camera module is controlled by I2C port from MSM6280. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 66 - Only for training and service purposes...
  • Page 66 C Clock AGND Analog GND [Table 3.12] Interface between MEGA Camera Module and MAIN PCB (in camera module) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 67 - Only for training and service purposes...
  • Page 67 Digital I/O circuit power supply voltage [Table 3.13] Interface between VGA Camera Module and FPCB (in camera module) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 68 - Only for training and service purposes...
  • Page 68 3. TECHNICAL BRIEF 3.10.6 LCD Module (IM300SBN1A : LG Innotek) - The IM200RST1A model is a Color Landscape TFT(Main) & Color TFT(Sub) LCD supplied by LG Innotek. This main Module has a 2.0 inch diagonally measured active display area with 320(RGB)X240 resolution and sub Module has a 0.86 inch diagonally measured active display area...
  • Page 69 The microphone interface consists of two differential microphone inputs, one differential auxiliary input and a two-stage audio amplifier. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 70 - Only for training and service purposes...
  • Page 70 3. TECHNICAL BRIEF [Fig. 3.25] Audio Interface Detailed Diagram(MSM6280) # Image Signal Processor Chip Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 71 - Only for training and service purposes...

  • Page 71: Feature List

    USB_D_M GP1_DRV_N(MPP7) +VPWR C703 0.01u FSUSB30UMX U701 EAR_SENSE_N HSD1+ RMT_INT HSD2+ USB_D+ RMT_INT/USB_D+ RMT_ADC HSD1- USB_D- HSD2- RMT_ADC/USB_D- LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 72 - Only for training and service purposes...
  • Page 72 ■ Clock gating for power saving (and a power-saving option to always turn the clock off when bus is idle) ■ Flow control option to prevent overflow and underflow ■ MCLK output up to 25 MHz Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 73 - Only for training and service purposes...
  • Page 73 3. TECHNICAL BRIEF 3.11.3 Power Domain LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 74 - Only for training and service purposes...

  • Page 74: Trouble Shooting

    Check the TXCO and SLEEP CRYSTAL X401 : 32.768KHz X401 : 3 2.768KHz Change the Main board Change the Main board Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 75 - Only for training and service purposes...
  • Page 75 4. TROUBLE SHOOTING LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 76 - Only for training and service purposes...

  • Page 76: Usb Trouble

    USB_D+ is about to 3.3V? USB_D+ is about to 3.3V? Check VA708 Check VA708 Change the Main board Change the Main board Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 77 - Only for training and service purposes...

  • Page 77: Sim Detect Trouble

    Change SIM card Change SIM card Work well? Work well? Change the Main board Change the Main board LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 78 - Only for training and service purposes...

  • Page 78: Key Sense Trouble (Keypad)

    KEY_COL[5] Change the Main board Change the Main board R904~R908 VA710~VA714 CN504 R907 100ohm KEY_ROW[2] R908 100ohm KEY_COL[5] Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 79 - Only for training and service purposes...
  • Page 79 4. TROUBLE SHOOTING [Fig. 4.1] Schematic of key sense part (TOP) [Fig. 4.2] Schematic of key sense part (Bottom) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 80 - Only for training and service purposes...

  • Page 80: Keypad Backlight Trouble

    Change the Key FPCB Change the Key FPCB Change the Key FPCB Work well? Work well? Work well? +VPWR KYPD_LED_EN Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 81 - Only for training and service purposes...
  • Page 81 4. TROUBLE SHOOTING [Fig. 4.3] Schematic of keypad backlight part LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 82 - Only for training and service purposes...

  • Page 82: Micro Sd Trouble

    2.85V? is over 2.85V? Change the MAIN board Change the MAIN board Work well? Work well? C428 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 83 - Only for training and service purposes...

  • Page 83: Audio Trouble

    Change the main Board Change the main Board Can you hear the tone? Can you hear the tone? LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 84 - Only for training and service purposes...
  • Page 84 4. TROUBLE SHOOTING Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 85 - Only for training and service purposes...
  • Page 85 Can you hear the tone? Can you hear the tone? or change the Main bíd or change the Main bíd LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 86 - Only for training and service purposes...
  • Page 86 C841 EAR_L C842 R704 EAR_R VBATT RMT_INT/USB_D+ RMT_ADC/USB_D- +5V_PWR FB504 EAR_SENSE_N FL701 [Fig. 4.4] Schematic of voice path Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 87 - Only for training and service purposes...
  • Page 87 LCD FPCB change the LCD FPCB pads of speaker? pads of speaker? Change the speaker Change the speaker LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 88 - Only for training and service purposes...
  • Page 88 RECEIVER- +VPWR C334 0.01u CN101 +VPWR TCC_2.7V_EHI_LCD OUT1 SPK_RCV+ SPK_RCV+ SPK_RCV- OUT2 SPK_RCV- C306 C307 V_CAM_RESET_N M_CAM_RESET_N KEY_ROW[3] Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 89 - Only for training and service purposes...
  • Page 89 4. TROUBLE SHOOTING LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 90 - Only for training and service purposes...
  • Page 90 C330,C331 sound signal at C330,C331 Change the MIC Change the MIC Work well? Work well? Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 91 - Only for training and service purposes...
  • Page 91 C329 Near to MIC SPM0204LE5-QB C201 C330 0.1u MIC1N C331 0.1u MIC1P MIC301 C333 C204 0.1u MIC Rev.E LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 92 - Only for training and service purposes...
  • Page 92 FB503 sound signal at FB503 Change the Main bíd Change the Main bíd Work well? Work well? Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 93 - Only for training and service purposes...
  • Page 93 4. TROUBLE SHOOTING VREG_MSMP_2.7V PCB Rev. Check R202 R203 MICBIAS 680K 150K CN701 C201 FB503 EAR_MIC_P TV_OUT R703 C841 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 94 - Only for training and service purposes...

  • Page 94: Camera Trouble

    Change the CAMERA Change the CAMERA Camera is OK? Camera is OK? Camera is OK? Camera is OK? Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 95 - Only for training and service purposes...
  • Page 95 4. TROUBLE SHOOTING [Fig. 4.5] 2M CAM CONNECTOR LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 96 - Only for training and service purposes...
  • Page 96 Change the CAMERA Change the CAMERA Camera is OK? Camera is OK? Camera is OK? Camera is OK? Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 97 - Only for training and service purposes...
  • Page 97 4. TROUBLE SHOOTING [Fig. 4.6] Schematic of VGA camera part LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 98 - Only for training and service purposes...

  • Page 98: Main Lcd Trouble

    FILTER_LCD_SESET_N(#6 FL501) FILTER_MM_LCD_DATA[0]~[15] FILTER_MM_LCD_DATA[0]~[15] (#7~#14, #34~#27, CN103) (FL502~FL505) Change the main board Change the LCD FPCB Camera is OK? Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 99 - Only for training and service purposes...
  • Page 99 4. TROUBLE SHOOTING LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 100 - Only for training and service purposes...
  • Page 100 FILTER_MM_LCD_DATA[3] FILTER_MM_LCD_DATA[2] FILTER_MM_LCD_DATA[1] FILTER_MM_LCD_DATA[0] MM_LCD_RD_N FILTER_MM_LCD_WE_N FILTER_MM_LCD_ADS_N MM_MAIN_LCD_CS_N MM_LCD_VSYNC LCD_MAKER_ID AXK8L40125G ENBY0020201 [Fig. 4.7] Schematic of LCD part Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 101 - Only for training and service purposes...

  • Page 101: Bluetooth Trouble

    C148 1000p 1000p TCXO_PM C152 1000p C153 100p TCXO_OUT TCXO_BT U103 TC7SH04FS [Fig. 4.8] Schematic of Bluetooth Interface LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 102 - Only for training and service purposes...
  • Page 102 SBST/ SBCK?SBDT Check Pin#4 / #11 / #12 is asserted ? Bluetooth works well? Change the main board Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 103 - Only for training and service purposes...

  • Page 103: Rf Component

    U105 UMTS PAM FL101 Front-End-Module U104 Coupler SW101 RF Antenna Connector FL102 GSM900 TX SAW U102 GSM/EDGE PAM LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 104 - Only for training and service purposes...

  • Page 104: Signal Path

    4. TROUBLE SHOOTING 4.12 SIGNAL PATH 4.12.1 UMTS PATH Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 105 - Only for training and service purposes...
  • Page 105 4. TROUBLE SHOOTING 4.12.2 GSM PATH LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 106 - Only for training and service purposes...

  • Page 106: Checking Vctcxo Block

    TCXO_BT U103 TC7SH04FS [Fig. 4.9] Schematic of the TCXO Block [Fig. 4.10] Test Point of the TCXO Block Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 107 - Only for training and service purposes...
  • Page 107 With Oscilloscope Check soldering 19.2MHz Signal and components VCXO is OK Check other part [Fig. 4.11] TCXO output waveform(19.2MHz) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 108 - Only for training and service purposes...

  • Page 108: Checking Front-End Module Block

    PGND2 EGSM_RX1 [Fig. 4.12] Schematic of the Front-End Module Block [Fig. 4.13] Test Point of Front-End Module Block Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 109 - Only for training and service purposes...

  • Page 109: Ant_Sel0

    [Table 4.1] Logic Table of the FEM - UMTS Tx/Rx - GSM900 Tx - DCS1800/PCS1900 Tx - GSM Rx / PCS1900 Rx LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 110 - Only for training and service purposes...

  • Page 110: Tp4 Vreg_Rf_Smps

    ANT_SEL0, 1, 2 High Level Check VDD 2.5V < Voltgae < 3.0V TP4 VREG_RF_SMPS Check the Logic in each mode Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 111 - Only for training and service purposes...

  • Page 111: Checking Umts Block

    EFCH1950TDF1 PA_R1 R119 PWR_DET PA_ON R120 R121 R122 8 dB [Fig. 4.14] Schematic of the WCDMA Tx Block LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 112 - Only for training and service purposes...
  • Page 112 4. TROUBLE SHOOTING [Fig. 4.15] Test Point of the WCDMA Tx Block Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 113 - Only for training and service purposes...
  • Page 113 Check TP3 Check PA M block Check FEM FL101 over 22dBm? U105 Tx is OK Check other parts LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 114 - Only for training and service purposes...
  • Page 114 3. +VPWR : UMTS PAM Main Voltage ( 3V < +VPWR < 4.2V) 4. PA_ON : Turns the PA on and off 5. PA_R1 : Control signals that step the active PA mode and bias Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 115 -...
  • Page 115 LDC151G9520Q-359 U104 C162 SCDY0004101 C161 RX_WCDMA_2100 C166 C165 C167 1.8p 20dB R119 PWR_DET R120 R121 R122 8 dB LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 116 - Only for training and service purposes...
  • Page 116 4. TROUBLE SHOOTING GND1 Vbias GND2 RX_WCDMA_2100 WLNA_IN VDD_RX L119 WLNA_OUT Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 117 - Only for training and service purposes...
  • Page 117 Signal exist? FL104 Check TP4 Check the RTR 6275 Signal exist? U101 Rx is OK Check other Parts LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 118 - Only for training and service purposes...

  • Page 118: Checking Gsm Block

    4. TROUBLE SHOOTING 4.16 Checking GSM Block Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 119 - Only for training and service purposes...
  • Page 119 3. Check RF Rx Level 4. Re download SW & Calibration 4.16.1 Checking Front-End Module Refer to chapter 4.14. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 120 - Only for training and service purposes...
  • Page 120 C138 C141 [Fig. 4.16] Schematic of the GSM Tx Block [Fig. 4.17] Test Point of GSM Tx Block Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 121 - Only for training and service purposes...
  • Page 121 Check Soldering of PAM (U101) If problem still exist, replace the PAM Problem resolved ? GSM/DCS/PCS Tx is OK Change the Board LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 122 - Only for training and service purposes...
  • Page 122 Power Amp Gain Control. Typically, 0.2 ~1.6V GSM_PA_EN Power Amp Enable (ON : >2.5V, OFF : <0.7V) +VPWR PAM Supply Voltage (Vcc > 3V) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 123 - Only for training and service purposes...
  • Page 123 L117 27nH [Fig. 4.20] Schematic of EGSM-900, DCS-1800, PCS-1900 Rx Block [Fig. 4.21] Test Point of Rx Block LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 124 - Only for training and service purposes...
  • Page 124 & Soldering of TPs GSM-900, DCS -1800, PCS - Rx still has problem ? 1900 Rx is OK Re-download & Calibration Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 125 - Only for training and service purposes...

  • Page 125: Dvb-H/T Trouble

    Check the LDO 1. 6V<TP1<2. 0V & replace not working 0. 8V<TP2<1. 2V @TP 3 Replace X101 30MHz? Replace U104 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 126 - Only for training and service purposes...
  • Page 126 4.7u ( 1% ) +1.8V_DVB_RF +1.0V_DVB_CORE 0.9857V [Fig. 4.22] DVB-H/T Power Schematic [Fig. 4.23] DVB-H/T Power Components Placement Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 127 - Only for training and service purposes...
  • Page 127 HOST_BUS14 DIB_IRQ CRYSTAL_N R125 CRYSTAL_P X101 30MHz FA-238_30MHz [Fig. 4.24] DVB-H/T IC schematic [Fig. 4.25] DVB-H/T IC Placement LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 128 - Only for training and service purposes...

  • Page 128: Download

    LGMDP supports Windows 2000/XP where the LG (Ver 4.6 or later) USB modem driver is installed. Additionally, LGMDP allows multi downloading up to 8 handsets at the same time.
  • Page 129 Then click on the Connect button. (The port number(COM7) shall be different from that of the port number in the snapshot.) HB620T HB620T LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 130 - Only for training and service purposes...
  • Page 130 • 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. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 131 -...
  • Page 131 6) Clear: Clearing all directory paths of images in the dialog. 7) Start: Starting downloading the selected individual image. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 132 - Only for training and service purposes...
  • Page 132 HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 133 - Only for training and service purposes...
  • Page 133 HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 134 - Only for training and service purposes...
  • Page 134 HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 135 - Only for training and service purposes...
  • Page 135 Click on the No button if this is not the setting you are downloading for. Otherwise click on the Yes button to continue downloading selected image file with options. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 136 - Only for training and service purposes...
  • Page 136 Start Button to start downloading DZ image. If you want to go back to original download mode, click on the Original button. HB620T HB620T Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 137 - Only for training and service purposes...
  • Page 137 • Erasing the existing directories and files HB620T before the Module image is downloaded. • Downloading the AMSS modem image. HB620T LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 138 - Only for training and service purposes...
  • Page 138 • Rebooting the handset and re-establishing the connection. • Erasing the existing directories and files HB620T before downloading the selected Media image. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 139 - Only for training and service purposes...
  • Page 139 HB620T • Downloading Module image in progress. HB620T • Rebooting handset. • Downloading process has completed HB620T successfully. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 140 - Only for training and service purposes...
  • Page 140 • 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. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 141 -...

  • Page 141: Troubleshooting Download Errors

    Connect button to continue. HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 142 - Only for training and service purposes...
  • Page 142 HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 143 - Only for training and service purposes...
  • Page 143 5.3.5 NV Restore Error • Snapshot showing the NV Restore error. Next slide shows the remedial procedure to adopt. HB620T LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 144 - Only for training and service purposes...
  • Page 144 Enable state in the window indicates that the Phone has been detected and is ready to download.) HB620T HB620T HB620T Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 145 - Only for training and service purposes...
  • Page 145 HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T HB620T LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 146 - Only for training and service purposes...

  • Page 146: Caution

    4) Recommended that the Module and Media Image have to be downloaded at the same time. 5) Erase EFS option will erase everything (media, module, nv items, and user data) in the EFS area.. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only...

  • Page 147: Block Diagram

    6. BLOCK DIAGRAM 6.1 GSM & UMTS RF Block Dugital IO s & controls MSM6280 [Fig. 6.1] UMTS-2100 + EGSM-900/DCS-1800/PCS-1900 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 148 - Only for training and service purposes...
  • Page 148 U104 Coupler LDC151G9520Q-359 U102 SKY77329 TX Dual PAM FL102 EFCH897MTDB1 Tx SAW Filter [Table 6.1] RF Block Component Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 149 - Only for training and service purposes...

  • Page 149: Interface Diagram

    W- RX UMTS2100 RX RF Signal TX_I/Q I/Q for Tx of RF RX_I/Q I/Q for Rx of RF LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 150 - Only for training and service purposes...
  • Page 150 Transmit Gain Control FEM_CTL signal UMTS, GSM900Tx/Rx, ANT_SEL 0,1,2 Ant S witch Module Mod e Selection DCS Tx/Rx, PCS Tx/Rx Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 151 - Only for training and service purposes...
  • Page 151 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 152 - Only for training and service purposes...

  • Page 152: Circuit Diagram

    GND1 1.8p C168 20dB C169 100p FL105 100p EFCH1950TDF1 PA_R1 R119 PWR_DET PA_ON R120 R121 R122 8 dB - 153 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 153 MSM6275 TP204 C239 Place near 0.1u MSM pin AD26 (Check CAM_DATA PINOUT !!!!) R213 2.2K VREG_CAM_DVDD_2.8V R214 2.2K - 154 - LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 154 U304 FSA2268TUMX FB302 MIC Rev.E SPK_R SPK_RCV+ R313 RECEIVER+ RCV_EN FB303 SPK_L SPK_RCV- R314 RECEIVER- +VPWR C334 0.01u - 155 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 155 TP404 1mm pad UART_TXD USIM_P_RST_N TP405 1mm pad UART_RXD_IN TP456 PLR0504F 2.5G PCB ARRAY TP ON_SW OJ403 OJ404 - 156 - LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 156 KEY_COL[3] KEY_COL[2] KEY_COL[1] KEY_COL[0] KYPD_LED_EN CN504 R907 100ohm KEY_ROW[2] SIDE_VOLUME_CAMERA R908 100ohm KEY_COL[5] KEY BACKLIGHT LEDs SIDE KEY - 157 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 157 SYNC_DET_TX_EN BT_TX_RX_N PGND2 RX_BB_TX_BB BT_DATA C715 1000p PGND3 TCXO_IN TCXO_BT PGND4 CLK_REF BT_CLK 1000p C716 BLUETOOTH LG INNOTEK - 158 - LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 158 JTAG I/F TCC_RTCK TCC_TDI TCC_TCK TCC_NTRST TV_OUT_3.0V TV OUT L801 TV_OUT R832 3.3uH R897 C827 C828 270p 270p R835 - 159 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 159 30MHz FA-238_30MHz INT_SELECT1 INT_SELECT0 Host Interface Type SRAM like SPI or SD (1 and 4 bits) I2C Control - 160 - LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 160 7. CIRCUIT DIAGRAM KB100 KB101 KB102 CN102 KEY_ROW(3) KEY_ROW[3] KEY_COL[1] KEY_COL[2] KEY_COL[3] KEY_COL[1] KEY_COL[2] KEY_COL[3] - 161 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 161 VC_IO_OFF CAM_SYSCLK V_CAM_RESET_N CAM_PCLK I2C_SCL CAM_DATA[0]F I2C_SDA CAM_DATA[1]F VA109 CAM_DATA[2]F CAM_HSYNC EVLC14S02050 CAM_DATA[3]F CAM_VSYNC CAM_DATA[4]F CAM_DATA[7]F CAM_DATA[5]F CAM_DATA[6]F - 162 - LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 162: Bgm Pin Map

    8. BGA IC PIN CHECK 8. BGA IC PIN CHECK MSM6280 PIN MAP(Bottom View) NOT IN USE Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 163 - Only for training and service purposes...
  • Page 163 8. BGA IC PIN CHECK Memory PIN MAP(TOP View) NOT IN USE LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 164 - Only for training and service purposes...
  • Page 164 8. BGA IC PIN CHECK TCC7920S PIN MAP(Bottom View) NOT IN USE Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 165 - Only for training and service purposes...
  • Page 165 8. BGA IC PIN CHECK DIB9080H PIN MAP(Bottom View) NOT IN USE LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 166 - Only for training and service purposes...

  • Page 166: Pcb Layout

    9. PCB LAYOUT - 167 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 167 U102 RTR6275 Sky77328 Rx Sensiitivity or No Tx power Tx power FL101 LSHS-M090UH Rx Sensiitivity or Tx power - 168 - LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 168 9. PCB LAYOUT - 169 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 169 9. PCB LAYOUT U104 DiB9080H DVB-H/T Demodulator FL101 SAEEB897MCA0B00 DVB-HH/T Filter GSM Rejection X101 FA-238_30MHz - 170 - LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 170 9. PCB LAYOUT - 171 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 171 9. PCB LAYOUT - 172 - LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 172 9. PCB LAYOUT CN105 VGA CAM Connector No VGA camera CN104 2M cam connector No 2M camera - 173 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 173 9. PCB LAYOUT CN103 LCD connector No display CN101 LCD FPCB connector No display,camera, Speaker,Vibrator,DVB - 174 - LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 174: Calibration & Rf Auto Test (Hot Kimchi)

    - Click SETTING in menu, and logic operation in sub-menu. - Select the model name (HB620T) which you want in list box. - Click Start button to calibrate a phone. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 175 -...
  • Page 175 - You can run the multi mode. (S/B1, S/B2 : You can use S/B1 for only one port) - You can set the path of HOTKIMCHI program. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 176 - Only for training and service purposes...
  • Page 176 - On running, log window is created in center area. It displays logs of command, and measurements of Calibration or Test. - The result files are saved in the directory “C:\Jhangee\debug\Cal”, “C:\Jhangee\debug\Auto” or “C:\Jhangee\debug\CalAuto”. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 177 - Only for training and service purposes...
  • Page 177 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 178 - Only for training and service purposes...

  • Page 178: Exploded View & Replacement Part List

    11. EXPLODED VIEW & REPLACEMENT PART LIST 11.1 EXPLODED VIEW 25 27 19 20 16 17 7 65 66 - 179 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 179 - 180 - LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 180: Replacement Parts

    MWAF00 WINDOW,LCD(SUB) MWAF0040101 CUTTING, PMMA MR 200, , , , , Without Color ACGK00 COVER ASSY,FRONT ACGK0107601 Without Color Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 181 - Only for training and service purposes...
  • Page 181 MPBZ0201201 COMPLEX, (empty), , , , , Without Color MPBZ01 MPBZ0204801 COMPLEX, (empty), , , , , Black LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 182 - Only for training and service purposes...
  • Page 182 MCBA0029601 COMPLEX, (empty), , , , , Without Color MLAZ00 LABEL MLAZ0038301 PID Label 4 Array Without Color Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 183 - Only for training and service purposes...

  • Page 183: Main Component

    CONNECTOR,BOARD TO CN105 ENBY0019501 20 PIN,.4 mm,ETC , ,H=1.5, Socket BOARD D402 DIODE,TVS EDTY0008610 SOD-523 ,5 V,250 W,R/TP ,PB-FREE LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 184 - Only for training and service purposes...
  • Page 184 MAIN ,2.0" 320*240 + 1.17" 96*96 ,42.4*46*3.0t ,262k SVLM00 LCD MODULE SVLM0028301 ,TFT ,TM ,R61513 / NT39107 , Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 185 - Only for training and service purposes...
  • Page 185 ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C121 CAP,CHIP,MAKER ECZH0000830 33 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 186 - Only for training and service purposes...
  • Page 186 ECZH0000813 100 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP C159 CAP,CHIP,MAKER ECZH0000830 33 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 187 - Only for training and service purposes...
  • Page 187 ECCH0000147 2.2 nF,50V,K,X7R,HD,1005,R/TP C226 CAP,CERAMIC,CHIP ECCH0000161 33 nF,16V,K,X7R,HD,1005,R/TP C227 CAP,CERAMIC,CHIP ECCH0000143 1 nF,50V,K,X7R,HD,1005,R/TP C228 CAP,CERAMIC,CHIP ECCH0000143 1 nF,50V,K,X7R,HD,1005,R/TP LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 188 - Only for training and service purposes...
  • Page 188 ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C406 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 189 - Only for training and service purposes...
  • Page 189 33 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP C502 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C703 CAP,CERAMIC,CHIP ECCH0000155 10 nF,16V,K,X7R,HD,1005,R/TP LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 190 - Only for training and service purposes...
  • Page 190 ECZH0001420 1 uF,10V ,K ,X5R ,HD ,1608 ,R/TP C830 CAP,CERAMIC,CHIP ECCH0000198 2.2 uF,6.3V ,M ,X5R ,TC ,1005 ,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 191 - Only for training and service purposes...
  • Page 191 SFEY0013201 SMD ,1608 ,EMI-ESD Filter, 4ch, 14V, 15pF, 100ohm FL506 FILTER,EMI/POWER SFEY0013501 SMD ,18V,4ch. EMI_ESD Filter (10 Ohm,7.5pF) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 192 - Only for training and service purposes...
  • Page 192 4.7 uH,M ,1 ,R/TP , ,; , ,0.3NH , , , , , ,NON SHIELD L900 INDUCTOR,SMD,POWER ELCP0008004 ,2.5X2X1MM ,11MM ,R/TP M701 MODULE,ETC SMZY0017601 QCT RF Module 3.85x3.8x1.2 ,; ,Bluetooth Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 193 - Only for training and service purposes...
  • Page 193 1 Kohm,1/16W ,J ,1005 ,R/TP R306 RES,CHIP,MAKER ERHZ0000431 18 Kohm,1/16W ,J ,1005 ,R/TP R307 RES,CHIP,MAKER ERHZ0000404 1 Kohm,1/16W ,J ,1005 ,R/TP LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 194 - Only for training and service purposes...
  • Page 194 ERHY0000147 56K ohm,1/16W,F,1005,R/TP R818 RES,CHIP ERHY0000254 4.7K ohm,1/16W,J,1005,R/TP R819 RES,CHIP ERHY0000254 4.7K ohm,1/16W,J,1005,R/TP PCB ASSY,MAIN,PAD R830 SAFP0000501 SHORT Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 195 - Only for training and service purposes...
  • Page 195 BGA ,169 PIN,R/TP ,DVB-H ,; ,IC,Digital Signal U807 EUSY0352701 Processors Micropak ,6 PIN,R/TP ,Single SPDT Analog Switch, Pb U808 EUSY0186502 Free LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 196 - Only for training and service purposes...
  • Page 196 LD503 DIODE,LED,CHIP EDLH0012501 Snow White ,1608 ,R/TP ,color concept LD504 DIODE,LED,CHIP EDLH0012501 Snow White ,1608 ,R/TP ,color concept Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 197 - Only for training and service purposes...
  • Page 197 47 ohm,1/16W ,J ,1005 ,R/TP R901 RES,CHIP,MAKER ERHZ0000483 47 ohm,1/16W ,J ,1005 ,R/TP R902 RES,CHIP,MAKER ERHZ0000483 47 ohm,1/16W ,J ,1005 ,R/TP LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 198 - Only for training and service purposes...
  • Page 198 ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C113 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 199 - Only for training and service purposes...
  • Page 199 ECZH0000830 33 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP R113 CAP,CHIP,MAKER ECZH0000830 33 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 200 - Only for training and service purposes...
  • Page 200 SPJY PCB,SUB SPJY0051101 FR-4 , mm,BUILD-UP 4 , ,; , , , , , , , , , Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 201 - Only for training and service purposes...

  • Page 201: Accessory

    100-240V ,5060 Hz,5.1 V,.7 A,CE ,AC-DC ADAPTOR ,; ADAPTOR,AC-DC SSAD0024504 ,85Vac~264Vac ,5.1V(+0.15V, -0.2V) ,700mA ,5060 , ,WALL 2P ,I/O CONNECTOR , LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 202 - Only for training and service purposes...
  • Page 202 Note...
  • Page 203 Note...

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