LG BL42k Service Manual

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Internal Use Only

Service Manual

BL42k

Date: December, 2009 / Issue 1.0

Table of Contents

Troubleshooting

Summary of Contents for LG BL42k

Page 1 Internal Use Only Service Manual BL42k Date: December, 2009 / Issue 1.0...
Page 2: Table Of Contents
4.12 Main side view LED Troubleshooting ......95 4.1 Slide Key side view LED Troubleshooting ....97 4.14 LCD Troubleshooting ..........99 4.15 Vibrator Troubleshooting .........101 Copyright © 2009 LG Electronics. Inc. All right reserved. - - LGE Internal Use Only Only for training and service purposes...
Page 4: Introduction
This model complies with rules regarding radiation and radio frequency emission as defined by local regulatory agencies. In accordance with these agencies, you may be required to provide information such as the following to the end user. Copyright © 2009 LG Electronics. Inc. All right reserved. - 5 - LGE Internal Use Only...
Page 5 • When returning system boards or parts like EEPROM to the factory, use the protective package as described. LGE Internal Use Only - 6 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 6: Performance
Part Name Comment Digital Baseband QSC6270 : Qualcomm Analog Baseband QSC6270 : Qualcomm RF Chip QSC6270 : Qualcomm Copyright © 2009 LG Electronics. Inc. All right reserved. - 7 - LGE Internal Use Only Only for training and service purposes...
Page 7: Hw Features
FR, EFR, HR,AMR PC synchronization Memory NAND Flash : 2Gbit SDRAM : 1Gbit LGE Internal Use Only - 8 - Copyright © 2009 LG Electronics. Inc. All right reserved. Speech coding FR, EFR, HR,AMR Only for training and service purposes...
Page 8 MPEG4, 15fps@QVGA Voice Recording Speaker Phone mode Support Travel Adapter CDROM Stereo Headset Data Cable T-Flash (External Memory) Copyright © 2009 LG Electronics. Inc. All right reserved. - 9 - LGE Internal Use Only Only for training and service purposes...
Page 9: Sw Features
EMS : Release4 Call Charge (AoC) (Except Text align) Call Duration SMS (EMS) 1000 EMS : Release4 (Except Text align) LGE Internal Use Only - 10 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 10 Class 12 Hold / Retrieve Conference Call Max. 6 DTMF Memo pad SyncML Yes(Only Orange) ORANGE MSN Email Copyright © 2009 LG Electronics. Inc. All right reserved. - 11 - LGE Internal Use Only Only for training and service purposes...
Page 11: Hw Spec
: -98dBm/-96dBm (2.439%) AM Suppression GSM : -31dBm -98dBm/-96dBm (2.439%) DCS : -29dBm Timing Advance ± 0.5T LGE Internal Use Only - 12 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 12 < 17.5 %, when Pout ≥ -20 dBm Peak Code Domain Error < -15 dB at Pout -20 dBm Copyright © 2009 LG Electronics. Inc. All right reserved. - 1 - LGE Internal Use Only Only for training and service purposes...
Page 13 +1.5/4 Inner Loop Power Control -0.5/+0.5 -0.5/+0.5 -0.5/+0.5 In Uplink -0.5/-1.5 -1/-3 -1.5/-4 group(10equal command group) +8/+12 +16/+24 LGE Internal Use Only - 14 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 14 Sub-Test : 1=1/15, 2=12/15, 3=13/15, 4=15/8, 5=15/7, 6=15/0 (BLER or R), 16QAM Only BLER < 10% or R >= 700kbps Copyright © 2009 LG Electronics. Inc. All right reserved. - 15 - LGE Internal Use Only Only for training and service purposes...
Page 15: Technical Brief
3. TECHNICAL BRIEF 3.1. GENERAL DESCRIPTION The RF platform of BL42K supports two different communication modes (WCDMA/GSM modes) including five communication bands (W2100/W850/GSM900/GSM1800/GSM190). The all the RF blocks can be divided into three main parts, which are a WCDMA part, a GSM, and an antenna switch Mode.
Page 16: Gsm Mode
SAW filters between the antenna switch and the QSC inputs for each band type. band type. Copyright © 2009 LG Electronics. Inc. All right reserved. - 17 - LGE Internal Use Only Only for training and service purposes...
Page 17 3. Technical Brief BL20 [Figure 1-2] QSC GSM receiver signal paths functional diagram LGE Internal Use Only - 18 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 18 DAC output signal is routed to GSM PA module for ramping the PA up or down, or to the transmitter signal path fo transmission. Copyright © 2009 LG Electronics. Inc. All right reserved. - 19 - LGE Internal Use Only...
Page 19 3. Technical Brief BL20 [Figure 1.2.2] QSC GSM transmitter signal paths functional diagram LGE Internal Use Only - 20 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 20: Umts Mode
. Power class : Power class 3 (+24dBm) in Band II and V . Zero-IF Receiver.NoIF filter needed . Direct IQ modulation transmitter [Figure 1.3.1] WCDMA RF structure Copyright © 2009 LG Electronics. Inc. All right reserved. - 21 - LGE Internal Use Only Only for training and service purposes...
Page 21 WCDMA waveform. Both filter outputs are buffered to drive their analog-to-digital converters for digitization. The digital baseband outputs are routed to QSC baseband circuits for further processing. LGE Internal Use Only - 22 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 22 LNA gain steps to further extend the receiver dynamic range. The downconvertertranslates the active LNA’sRF signal directly to baseband, producing two analog outputs: in-phase (I) and quadrature (Q). Copyright © 2009 LG Electronics. Inc. All right reserved. - 2 - LGE Internal Use Only...
Page 23 QSC baseband circuits for further processing.The Rx LO signal is delivered to the downconvertercircuits from the LO generation and distribution circuits as described in next section. LGE Internal Use Only - 24 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 25: Off-Chip Rf Components
Integration of ESD protection at Ant port to 8kV acc. IEC-61000-4-2 (contact discharge) [Figure 1.4.1] Block diagram of FEM LGE Internal Use Only - 26 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 26 C130= 100pF, when W850 enabled L110= DNI, when W850 enabled [Figure 1.4.2] W-CDMA PAM, HDET, and Duplexer circuits. Copyright © 2009 LG Electronics. Inc. All right reserved. - 27 - LGE Internal Use Only Only for training and service purposes...
Page 27 TX_GSM_LB GSM_PA_EN GSM TX B9442 EGSM Tx GSM_PA_RAMP SFSY0037601 B9442 [Figure 1.4.3] GSM900 /DCS/PCS TX Power Amplifier path LGE Internal Use Only - 28 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 28: Off-Chip Components
Bluetooth block of BL42K consists of a BCM2070 chip-set, an external crystal oscillator(26MHz), and a 3.5.1 Bluetooth (BCM2070) Bluetooth chip antenna (2.4GHz). QSC6270, which is main HW solution of BL42K Model, doesn’t include BT baseband core. Instead, Bluetooth chipset, BCM2070, contains stand-alone baseband processor (V2.1+EDR) Bluetooth block of BL42K consists of a BCM2070 chip-set, an external crystal oscillator(26MHz), and a Bluetooth chip antenna (2.4GHz).
Page 29 3. Technical Brief Table 1. Bluetooth Connection(GPIO) with QSC6270 LGE Internal Use Only - 0 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 30: Pin Descriptions
The radio delivers stereo audio output to an external amplifier. The radio can be controlled with a high level command based interface through a I2C or SPI-bus. [Figure3.xx.x.x] shows the FM Radio system architecture in the BL42K. 5pin MicroUSB Connector...
Page 31 Audio output signal left Not connected Analog supply voltage GPIO2 General Purpose I/O 2; Dataout for 4-wire SPI-bus LGE Internal Use Only - 2 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 32: General Description
QSC6270 has all eight major functional blocks as like Figure 2.1 Figure 2.1 QSC6270 Base band block 1/53 Copyright © 2009 LG Electronics. Inc. All right reserved. - - LGE Internal Use Only Only for training and service purposes...
Page 33 The application subsystem includes the QDSP4u8 application digital signal processor(aDSP). Figure 2.1.1 Processors and bus architecture Figure 2.1.1 Processors and bus architecture 2/53 2/53 LGE Internal Use Only - 4 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 34 External Memory (MICRO- USIM_CLK USIM SD card) MICROSD_DETECT USIM_DATA MICROSD_DATA[0:3] Figure 2.1.2.1 The memory control blocks of BL42k 3/53 Copyright © 2009 LG Electronics. Inc. All right reserved. - 5 - LGE Internal Use Only Only for training and service purposes...
Page 35 QVGA Main LCD_ADS LCD_CS_N EBI2_DATA[15:0] (2.4`, 240x320) LCD_IF(2:1) QSC6270 WLED_PWR Figure 2.1.2.2 The LCD interfaces of BL42k 4/53 LGE Internal Use Only - 6 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 36 – Two secure digital controllers — WLAN and secure digital (SD) cards QSC6270 Figure 2.1.3 The connectivity of BL42k 5/53 Copyright © 2009 LG Electronics. Inc. All right reserved. - 7 - LGE Internal Use Only Only for training and service purposes...
Page 37 KEY_COL(2) MUIC_INT BT_REG_ON UART1_RTS_N UART1_CTS_N MICROSD_CLK MICROSD_DATA[3] MICROSD_DATA[2] MICROSD_DATA[1] MICROSD_DATA[0] MICROSD_CMD SLIDE_DETECT Figure 2.1.4 GPIOs of BL42k 6/53 LGE Internal Use Only - 8 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 38 TCXO (or XO) source for their operating modes, plus the 32.768 kHz oscillator for their sleep modes Figure 2.1.6 Clock block basic architecture of QSC6270 7/53 Copyright © 2009 LG Electronics. Inc. All right reserved. - 9 - LGE Internal Use Only Only for training and service purposes...
Page 39 The video capabilities of the two QSC devices varies slightly, with the QSC6270 providing higher performance than the QSC6270 device — greater resolution, higher capture and streaming rates, etc. 8/53 LGE Internal Use Only - 40 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 40 Figure 2.1.7.2.1 MDP-to-LCD interface functional block diagram 10/53 Copyright © 2009 LG Electronics. Inc. All right reserved. - 41 - LGE Internal Use Only Only for training and service purposes...
Page 41 FLT_LCD_DATA[3] FLT_LCD_DATA[2] FLT_LCD_DATA[1] FLT_LCD_DATA[0] MAIN_TOUCH_INT MAIN_TOUCH_I2C_SDA MAIN_TOUCH_I2C_SCL LCD_MAKER_ID LCD_RESET_N LCD_BL_CTRL Figure 2.1.7.2.2 The LCD interface of BL42k 10/53 LGE Internal Use Only - 42 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 42 -. Multipurpose pins (when configured as analog inputs) -. A few on-chip parameters such as the die temperature or VREF 12/53 Copyright © 2009 LG Electronics. Inc. All right reserved. - 4 - LGE Internal Use Only Only for training and service purposes...
Page 44: Power Management
Automated recovery from sudden momentary power loss (requires external32.768 kHz crystal) Figure 2.2.1 Input circuits schematic diagram 14/53 Copyright © 2009 LG Electronics. Inc. All right reserved. - 45 - LGE Internal Use Only Only for training and service purposes...
Page 45 All regulated output voltages are programmable. All regulators can be set to a low-power mode except the VREG_USB_3P3 and VREG_NCP circuits 15/53 LGE Internal Use Only - 46 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 46 3. VREG_MSMP powers key internal circuits and should be kept on at its default voltage setting. 4. All regulators have default output voltage settings, even if they default to an off condition. 16/53 Copyright © 2009 LG Electronics. Inc. All right reserved. - 47 - LGE Internal Use Only...
Page 47 Software sets the desired trickle charging current. Valid settings are from 10 to 160 mA, in 10 mA increments. 17/53 LGE Internal Use Only - 48 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 48 The difference between these two current measurements is the charging current. Regardless of the technique used to detect the end of charge, software must take the appropriate action to terminate the charging operation. 18/53 Copyright © 2009 LG Electronics. Inc. All right reserved. - 49 - LGE Internal Use Only...
Page 49: Sub System
EBI1 is a high-performance external memory interface for the QSC62x0 digital block that supports DDR SDRAM devices Specifically, the following memory devices are supported on EBI1: 19/53 LGE Internal Use Only - 50 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 50 Interface Spec Device Part Name Maker Memory cell array Flash TYA000B001BLKF Toshiba SDRAM TYA000B001BLKF Toshiba 20/53 Copyright © 2009 LG Electronics. Inc. All right reserved. - 51 - LGE Internal Use Only Only for training and service purposes...
Page 51 3. Technical Brief BL42k 3.8.3 Camera Interface ( 5M CAMERA ) 2.8.3.1 5M CAMERA BL42k Installed a 5M Pixel Camera. Below picture shows the camera board to board connector and camera I/F signal. CAM_MCLK CAM_PCLK MEGA_CAM_RESET_N FLT_CAM_DATA[0] FLT_CAM_DATA[1] CAM_I2C_SDA FLT_CAM_DATA[2]...
Page 52 2.8.3 Camera Interface ( 5M CAMERA ) 2.3.3.2 VGA CAMERA Below picture shows PIN description of VGA. 21/53 Copyright © 2009 LG Electronics. Inc. All right reserved. - 5 - LGE Internal Use Only Only for training and service purposes...
Page 53 2.3.4 LCD Module (LQ024Q3UX01 : SHARP) LGE Internal Use Only - 54 - Copyright © 2009 LG Electronics. Inc. All right reserved. This data sheet is to introduce the specification of LQ024Q3UX01 active matrix 262,144color LCD module. Only for training and service purposes Main color LCD module is controlled by Driver IC (Renesas R61520).
Page 54 HPH_R) is a single-ended output stage designed to drive a headset speaker. The microphone interface consists of two differential microphone inputs, one differential auxiliary input and a two-stage audio amplifier. Copyright © 2009 LG Electronics. Inc. All right reserved. - 55 -...
Page 55 HPH_R) is a single-ended output stage designed to drive a headset speaker. The microphone interface consists of two differential microphone inputs, one differential auxiliary input and a two-stage audio amplifier. 23/53 LGE Internal Use Only - 56 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 56 Side touch interface scheme is shown and there control signals are followed SIDE_TOUCH_I2C_SCL : I2C CLOCK SIDE_TOUCH_I2C_SDA : I2C DATA SIDE_TOUCH_I2C_INT : I2C INT 24/53 Copyright © 2009 LG Electronics. Inc. All right reserved. - 57 - LGE Internal Use Only Only for training and service purposes...
Page 57 SENSE3 BT_PCM_OUT SENSE4 SENSE7 BT_PCM_IN SENSE5 BT_PCM_SYNC SENSE8 SENSE6 KEY_ROW(0) KEY_ROW(1) KEY_ROW(2) KEY_ROW(3) KEY_ROW(4) LGE Internal Use Only - 58 - Copyright © 2009 LG Electronics. Inc. All right reserved. KEY_COL(0) Only for training and service purposes KEY_COL(1) KEY_COL(2) MUIC_INT...
Page 58: Trouble Shooting
4.1.1 MAIN board TOP FL102 FL103 FL107 U100 U102 U104 U103 U101 FL106 FL120 FL100 X100 SW101 SW100 U301 Copyright © 2009 LG Electronics. Inc. All right reserved. - 59 - LGE Internal Use Only Only for training and service purposes...
Page 59 RF Antenna Connector U103 WCDMA (I) Coupler SW101 RF Connector U101 WCDMA (VIII) Coupler FL120 WCDMA (I) Duplexer LGE Internal Use Only - 60 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 62: Trouble Shooting Of Gsm Part (Gsm900/1800/1900)
4. TROUBLE SHOOTING 4.3 Trouble Shooting of GSM Part (GSM900/1800/1900) Copyright © 2009 LG Electronics. Inc. All right reserved. - 6 - LGE Internal Use Only Only for training and service purposes...
Page 64 4. TROUBLE SHOOTING 4.3.1 Checking VCTCXO Circ TCXO CIRCUIT TRK_LO_ADJ 19M_XTAL_IN 19.2MHz Copyright © 2009 LG Electronics. Inc. All right reserved. - 65 - LGE Internal Use Only Only for training and service purposes...
Page 67 GSM1900 Rx Band WLNA_HB1_IN_P_GSM GLNA_LB_IN_P GSM850 Rx Band GLNA_LB_IN_M L126= 100pF, when W850 enabled WCDMA_LB 897.5MHz,942.5MHz WLNA_LB_IN_M WCDMA_900/GSM900 15nH WLNA_LB_IN_P LGE Internal Use Only - 68 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 68 WCDMA_1900 WCDMA_LB TX_GSM_HB GSM_PA_BAND TX_GSM_LB GSM_PA_EN ANT_SEL(0) GSM TX ANT_SEL(1) B9442 EGSM Tx ANT_SEL(2) GSM_PA_RAMP SFSY0037601 ANT_SEL(3) B9442 Copyright © 2009 LG Electronics. Inc. All right reserved. - 69 - LGE Internal Use Only Only for training and service purposes...
Page 70: Trouble Shooting Of Wcdma Part
4. TROUBLE SHOOTING 4.4 Trouble Shooting of WCDMA part Copyright © 2009 LG Electronics. Inc. All right reserved. - 71 - LGE Internal Use Only Only for training and service purposes...
Page 71 4.4.1 Checking VCTCXO Refer to GSM Part (4.3.1) 4.4.2 Checking Mobile SW & FEM Refer to GSM Part (4.3.2) LGE Internal Use Only - 72 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 73 WCDMA_1900 DNI, when enabled WCDMA 1900 1880,1960MHz L126= 100pF, when W850 enabled WCDMA_LB 897.5MHz,942.5MHz WLNA_LB_IN_M WCDMA_900/GSM900 15nH WLNA_LB_IN_P LGE Internal Use Only - 74 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 75 L110= DNI, when W850 enabled WCDMA_900/GSM900 15nH WLNA_LB_IN_P DUPLEXER(W850) L100 C164 C165 L104 WCDMA_850/GSM850 SAYFP836MCA0F00 1.8pF 12nH 12nH LGE Internal Use Only - 76 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 76: Checking Bluetooth Block
( 3 x1.5 X 1 ) BT module_BCM2070 BT module_BCM2070 Band pass filter Band pass filter 26Mhz crystal 26Mhz crystal Copyright © 2009 LG Electronics. Inc. All right reserved. - 77 - LGE Internal Use Only Only for training and service purposes...
Page 77 4. TROUBLE SHOOTING 4.5.2 BLUETOOTH SIGNAL PATH Bluetooth Signal PATH (sub board bottom) Bluetooth T/Rx PATH LGE Internal Use Only - 78 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 78 TP1, TP2 Signals exist? Change the X1(crystal) Is Clock OK? Change the U1 Signal exist? Change the main board Copyright © 2009 LG Electronics. Inc. All right reserved. - 79 - LGE Internal Use Only Only for training and service purposes...
Page 79 VDDO BT_IN_OUT BT_RESET_N BT_REG_ON BT_PCM_OUT BT_PCM_IN BT_PCM_CLK SLEEP_CLK BT_PCM_SYNC UART1_RX_DATA UART1_TX_DATA UART1_CTS_N 26MHz MSM_WAKES_BT UART1_RTS_N BT_WAKES_MSM LGE Internal Use Only - 80 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 81: Checking Fm Radio Block
4.6.1 BLUETOOTH RF components & FM Signal Path Reference Description Reference Description U601 TEA5991(FM module) U601 TEA5991(FM module) LGE Internal Use Only - 82 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 82 Change the main board Signals exist? Change the Ear MIC Signals exist? Change the U601 Signal exist? Change the main board Copyright © 2009 LG Electronics. Inc. All right reserved. - 8 - LGE Internal Use Only Only for training and service purposes...
Page 83 TP2(C213) VREG_MSMP_2.6V VREG_MSME_1.8V FM_ANT_IN VREG_MSMP_2.6V FM_OUT_R FM_OUT_AUDIO signal FM_OUT_L FM_AUDIO_R FM_AUDIO_L FM_ANT_N TP4 (C305) TP1 (C603) TP1 (C602) LGE Internal Use Only - 84 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 84: Power On Troubleshooting
Is clock ok? X201 : 32.768KHz Change the TCXO & Sleep Crystal C108 : 19M Change the main board 26/53 Copyright © 2009 LG Electronics. Inc. All right reserved. - 85 - LGE Internal Use Only Only for training and service purposes...
Page 85 4. TROUBLE SHOOTING Power ON Troubleshooting BL20 TCXO (19MHz) Sleep Crystal (32.768kHz) Sleep Crystal (32.768kHz) 27/53 LGE Internal Use Only - 86 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 86 4. TROUBLE SHOOTING Power ON Troubleshooting BL20 MAIN TOP VIEW MAIN BOTTOM VIEW 28/53 Copyright © 2009 LG Electronics. Inc. All right reserved. - 87 - LGE Internal Use Only Only for training and service purposes...
Page 87: Charger Troubleshooting
Is the TA voltage 5.1V? Change TA Is it charging properly? Change the main board [ Charger Troubleshooting Flow ] 29/53 LGE Internal Use Only - 88 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 88: Usb Troubleshooting
IC400(MAX14526) OUTPUT is Change the IC400 USB_DM,USB_DP signal check Change the main board [ USB Troubleshooting Flow ] 30/53 Copyright © 2009 LG Electronics. Inc. All right reserved. - 89 - LGE Internal Use Only Only for training and service purposes...
Page 89 USB Troubleshooting BL20 4. TROUBLE SHOOTING <Figure 3.7 Signal in USB connection> 31/53 LGE Internal Use Only - 90 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 90: Usim Detect Troubleshooting
USIM_P_CLK & RST is run ? Change the SIM card Work well? Work well ? Change the Main board 32/53 Copyright © 2009 LG Electronics. Inc. All right reserved. - 91 - LGE Internal Use Only Only for training and service purposes...
Page 91 VREG_USIM_2.85V USIM Troubleshooting BL20 USIM_DATA USIM_RESET_N USIM_CLK MUSIM_DP MUSIM_DM A:VREG_USIM_2.85V B:USIM_RESET_N C:USIM_CLK D:MUSIM_DP E:GND F:NC G:USIM_DATA H:MUSIM_DM LGE Internal Use Only - 92 - Copyright © 2009 LG Electronics. Inc. All right reserved. 33/53 Only for training and service purposes...
Page 92: Camera Troubleshooting
Change the Main board R505 Check the CAM_PCLK Change the Camera Module R504 Camera is OK Change the Main board 34/53 Copyright © 2009 LG Electronics. Inc. All right reserved. - 9 - LGE Internal Use Only Only for training and service purposes...
Page 93 4. TROUBLE SHOOTING Camera Troubleshooting BL20 CAM_24MHz MCLK CAM_70MHz PCLK 35/53 LGE Internal Use Only - 94 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 94: Main Side View Led Troubleshooting
Check VA2 Change the FPCB below 0.8v OR KEY PCB LED ON ? Change the MAIN PCB 36/53 Copyright © 2009 LG Electronics. Inc. All right reserved. - 95 - LGE Internal Use Only Only for training and service purposes...
Page 95 +VPWR SSC-SWTS1007 +VPWR SSC-SWTS1007 MAIN_KEY_LED_N ICVS0514X350FR Check point (VA2) Check point (VA2) [Main KEY PCB TOP ] 37/53 LGE Internal Use Only - 96 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 96: Slide Key Side View Led Troubleshooting
Check VA200 Change the FPCB below 0.8v OR KEY PCB Change the MAIN PCB LED ON ? 38/53 Copyright © 2009 LG Electronics. Inc. All right reserved. - 97 - LGE Internal Use Only Only for training and service purposes...
Page 97 Slide Key side view Troubleshooting BL20 SLIDE_KEY_LED_N Check point (VA200) Check point (VA200) [Slide Side view schemetic] [Slide Side view placement] 39/53 LGE Internal Use Only - 98 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 98: Lcd Troubleshooting
LCD display OK? Change the FPCB LCD display OK? Change SUB PCB LCD display OK? Change the Main Board 40/53 Copyright © 2009 LG Electronics. Inc. All right reserved. - 99 - LGE Internal Use Only Only for training and service purposes...
Page 99 4. TROUBLE SHOOTING LCD Troubleshooting BL20 [Slide Side view placement] 41/53 LGE Internal Use Only - 100 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 100: Vibrator Troubleshooting
Main PCB below 1V? Change the FPCB Change vibrator or Change working? the Main PCB [LCD FPCB ] 42/53 Copyright © 2009 LG Electronics. Inc. All right reserved. - 101 - LGE Internal Use Only Only for training and service purposes...
Page 101: Receiver Path
Change audio sub system C517,C518? The sine wave appears at Change FPCB Speaker pad Change the Main board 43/53 LGE Internal Use Only - 102 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 102 4. TROUBLE SHOOTING BL20 RCV-(R508) RCV-(R509) SPK_RCV+ (C517) Audio Sub system IC500 SPK_RCV- (C518) 44/53 Copyright © 2009 LG Electronics. Inc. All right reserved. - 10 - LGE Internal Use Only Only for training and service purposes...
Page 104: Headset Path
R6,R7 Check the MUIC Sine wave appears at Change the Main board R408? Change the Main board 46/53 Copyright © 2009 LG Electronics. Inc. All right reserved. - 105 - LGE Internal Use Only Only for training and service purposes...
Page 105 Audio Sub system IC500 HP_EAR_L ( R6 ) HP_EAR_R ( R7) [ MAIN Bottom] R408 MUIC IC400 47/53 LGE Internal Use Only - 106 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 106: Speaker Phone Path
Change audio sub system C517,C518? Sine wave appears at Change FPCB SPK Pad? Change the Main board 48/53 Copyright © 2009 LG Electronics. Inc. All right reserved. - 107 - LGE Internal Use Only Only for training and service purposes...
Page 107 4. TROUBLE SHOOTING BL20 SPK_RCV+ (C517) Audio Sub system IC500 [ MAIN Bottom ] SPK_R(C529) SPK_RCV- (C518) SPK_L(C528) 49/53 LGE Internal Use Only - 108 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 109: Main Microphone
Make sound to MIC Sine wave appears at Change the MIC Change the Main board Work well? 51/53 LGE Internal Use Only - 110 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 110 4. TROUBLE SHOOTING MICBIAS BL20 MICBIAS MIC1N MIC1P MAIN MIC MIC1 MICBIAS 100n MIC1N 100n MIC1P SPU0410HR5H-PB 52/53 Copyright © 2009 LG Electronics. Inc. All right reserved. - 111 - LGE Internal Use Only Only for training and service purposes...
Page 111: Headset Microphone
Check the MUIC Sine wave appears at Change the Headset C411? Change the MAIN board Change the MAIN board 53/53 LGE Internal Use Only - 112 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 112 4. TROUBLE SHOOTING BL20 I/O Connector MUIC IC400 CN400 R408 MIC2P C411 54/53 Copyright © 2009 LG Electronics. Inc. All right reserved. - 11 - LGE Internal Use Only Only for training and service purposes...
Page 113: Download
LGMDP is designed to be simple to use and easy enough for the beginner to upload executable images to the handset. LGMDP supports Windows 2000/XP where the LG (Ver 4.6 or later) USB modem driver is installed. Additionally, LGMDP allows multi downloading up to 9 handsets at the same time.
Page 114: Downloading Procedure
When LGMDP starts Select Port When LGMDP starts, it will automatically select button to download image file. nfidential Copyright © 2009 LG Electronics. Inc. All right reserved. - 115 - LGE Internal Use Only Only for training and service purposes...
Page 115 (The port number(COM7) shall be different from that of the port number in the snapshot.) dential LGE Internal Use Only - 116 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 116: Connecting To Pc
PC to the handset, a progressive bar (Red box) indicating the degree of transmission of data is displayed. dential Copyright © 2009 LG Electronics. Inc. All right reserved. - 117 - LGE Internal Use Only...
Page 117 Media Image, and then select the media image with matched country code. a Image, and then select the media image with matched country code. LG Confidential ntial LGE Internal Use Only - 118 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 118 Override partition table is also also defaultly not selected and user cannot choose. 6) Clear: Clearing all directory paths of images in the dialog. 7) Start: Starting downloading the selected individual image. Copyright © 2009 LG Electronics. Inc. All right reserved. - 119 - LGE Internal Use Only...
Page 120 (The file name shall be different from that of the file name in the snapshot.) file name shall be different from that of the file name in the snapshot.) dential Copyright © 2009 LG Electronics. Inc. All right reserved. - 121 - LGE Internal Use Only...
Page 121 NV file from the LGMDP installation directory by clicking on installation directory by clicking on the Browse… button. Browse… button. nfidential LGE Internal Use Only - 122 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 122 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. idential Copyright © 2009 LG Electronics. Inc. All right reserved. - 12 - LGE Internal Use Only...
Page 123 (DZ does not allowing extracting or creating zip archive with other public opened archive tool such as WinZip or Alzip.) To download DZ image, simply click on the DZ button. ential LGE Internal Use Only - 124 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 124 DZ image. If you want to go back to original download mode, click on the Original button. Confidential Copyright © 2009 LG Electronics. Inc. All right reserved. - 125 - LGE Internal Use Only Only for training and service purposes...
Page 125 • Erasing the existing directories and files before the Module image is downloaded. LG Confidential LGE Internal Use Only - 126 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 126 User can also restore NV data using User can also restore NV data using NV Default image selec- image selection. tion. LG Confidential Copyright © 2009 LG Electronics. Inc. All right reserved. - 127 - LGE Internal Use Only Only for training and service purposes...
Page 127 Media image the selected Media image Downloading Media image in progress • Downloading Media image in progress LG Confidential LGE Internal Use Only - 128 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 128 • Rebooting handset Rebooting handset Downloading process has completed successf • Downloading process has completed successfully LG Confidential Copyright © 2009 LG Electronics. Inc. All right reserved. - 129 - LGE Internal Use Only Only for training and service purposes...
Page 129 USB connectivity and check where the COM has been installed . Select Device Manager from the Tools of the file menu. LG Confidential GCGP LGE Internal Use Only - 10 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 130: Troubleshooting Download Errors
• The below dialog shows parameters of Select Port when phone is booted in Emergency mode. Click on the mode. Click on the Connect button to continue. Connect button to continue. Copyright © 2009 LG Electronics. Inc. All right reserved. - 11 - LGE Internal Use Only Only for training and service purposes onfidential...
Page 131: Start Button
PC. After downloading images suc- will boot to normal mode. cessfully, it will boot to normal mode. onfidential LGE Internal Use Only - 12 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 132 Next slide shows the remedial procedure to adopt. • Snapshot showing the NV Restore error. Next slide shows the remedial procedure to adopt. onfidential Copyright © 2009 LG Electronics. Inc. All right reserved. - 1 - LGE Internal Use Only Only for training and service purposes...
Page 134 NV Backup was done. Choose the desired NV file to be downloaded on the handset, and click on Start. Start. Confidential Copyright © 2009 LG Electronics. Inc. All right reserved. - 15 - LGE Internal Use Only Only for training and service purposes...
Page 135: Caution
Erase EFS option will erase everything (media, module, nv items, and user data) in the EFS area. nfidential LGE Internal Use Only - 16 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 136: Block Diagram
6. Block Diagram 6. Block Diagram 1. System HW Block Diagram : BL42k Total Block Diagram Copyright © 2009 LG Electronics. Inc. All right reserved. - 17 - LGE Internal Use Only Only for training and service purposes...
Page 141 6. Block Diagram 5. System HW Block Diagram : Connectivity (BT & FM Radio) LGE Internal Use Only - 142 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 144 6. Block Diagram 8. System HW Block Diagram : VISUAL( LCD & CAMERA ) Copyright © 2009 LG Electronics. Inc. All right reserved. - 145 - LGE Internal Use Only Only for training and service purposes...
Page 146: Circuit Diagram
L110= DNI, when W850 enabled WCDMA_900/GSM900 15nH WLNA_LB_IN_P DUPLEXER(W850) L100 C164 C165 L104 WCDMA_850/GSM850 SAYFP836MCA0F00 1.8pF 12nH 12nH Copyright © 2009 LG Electronics. Inc. All right reserved. - 147 - LGE Internal Use Only Only for training and service purposes...
Page 147 Backup Battery VBACK_UP VSW_RF1 VREG_RF1 VSW_RF2 VREG_RF2 VSW_MSMC BATT_FET_N VBATT BATT_FET_N VREF_THERM_OUT Close to QSC VBATT_TEMP Close to QSC LGE Internal Use Only - 148 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 148 KEY_COL(2) LCD_CS_N MUIC_INT BT_REG_ON EBI2_WE_N UART1_RTS_N EBI2_OE_N UART1_CTS_N MICROSD_CLK EBI2_CLE_N MICROSD_DATA[3] EBI2_ALE_N MICROSD_DATA[2] MICROSD_DATA[1] EBI2_CS1_N MICROSD_DATA[0] MICROSD_CMD SLIDE_DETECT Copyright © 2009 LG Electronics. Inc. All right reserved. - 149 - LGE Internal Use Only Only for training and service purposes...
Page 149 USB_D- USB_DP USB_D+ UART1_RX_DATA USB_ID UART1_TX_DATA MIC2P HP_EAR_L uUSB 5Pin Connector HP_EAR_R MUIC_INT USB_D- MUIC_FM_AUDIO_I2C_SDA USB_D+ MUIC_FM_AUDIO_I2C_SCL USB_ID LGE Internal Use Only - 150 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 150 7.5pF FLT_CAM_DATA[2] CAM_I2C_SCL FLT_CAM_DATA[3] FLT_CAM_DATA[4] CAM_VSYNC FLT_CAM_DATA[5] CAM_HSYNC FLT_CAM_DATA[6] FLT_CAM_DATA[7] MEGA_CAM_PWDN FLT_CAM_DATA[8] FLT_CAM_DATA[9] CAM_DATA[0] FLT_CAM_DATA[0] CAM_DATA[1] FLT_CAM_DATA[1] 7.5pF Copyright © 2009 LG Electronics. Inc. All right reserved. - 151 - LGE Internal Use Only Only for training and service purposes...
Page 151 KEY_COL(1) KEY_COL_1 FM_ANT_N KEY_COL(2) KEY_COL_2 Flash Driver LINMOT_EN +VPWR FLOUT FLASH_SET FLASH_EN FLASH_INH LINMOT_EN LINMOT_P FLASH_OUT LINMOT_PWM LINMOT_M LGE Internal Use Only - 152 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 152 MAIN_KEY_LED_N 15pF KEY_ROW_4 SLIDE_DETECT KEY_COL_0 KEY_COL_1 KEY_COL_2 EBI2_DATA(7) FLT_LCD_DATA[7] EBI2_DATA(6) FLT_LCD_DATA[6] EBI2_DATA(5) FLT_LCD_DATA[5] EBI2_DATA(4) FLT_LCD_DATA[4] KEY_COL[2] KEY_ROW[0] 15pF Copyright © 2009 LG Electronics. Inc. All right reserved. - 153 - LGE Internal Use Only Only for training and service purposes...
Page 153 GND4 MUSIM_DP RESERVED1 RESERVED2 MUSIM_DM TP15 30pF 30pF 30pF 30pF 30pF 33pF 33pF 33pF 33pF 30pF 0.1uF 30pF LGE Internal Use Only - 154 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 154 XOUT UART_RXD UART1_TX_DATA UART_RTS_N UART1_CTS_N 26MHz MSM_WAKES_BT GPIO_0 UART_CTS_N UART1_RTS_N BT_WAKES_MSM GPIO_1 TSX-3225_26MHZ TP10 TP12 TCXO_OR_OUT_GPIO_5 TCXO_OR_IN_GPIO_6 GPIO_7 Copyright © 2009 LG Electronics. Inc. All right reserved. - 155 - LGE Internal Use Only Only for training and service purposes...
Page 155 SLIDE KEY_ SIDE VIEW LED 4EA 0.2T 2.2Kohms SENSE5 2.2Kohms R203 TP201 R206 SENSE8 TP203 2.2Kohms SENSE6 2.2Kohms NAVI_TOUCH_DRIVER IC LGE Internal Use Only - 156 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 156 C103 C104 MLED2 LCD_BL_CTRL EN_SET MLED3 MLED4 MLED5 PGND LCD LDO 2.8V & 1.8V LCD Backlight 5-Channels Driver Copyright © 2009 LG Electronics. Inc. All right reserved. - 157 - LGE Internal Use Only Only for training and service purposes...
Page 157 ICVS0514X350FR MAIN MIC RF Connector ANT1 ANT2 MIC1 MICBIAS ANTENNA_PAD ANTENNA_PAD 100n MIC1N 100n MIC1P SPU0410HR5H-PB UFL-R-SMT10 0.5p LGE Internal Use Only - 158 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 160: Bga Pin Map
8. BGA Pin Map 8. BGA Pin Map 1. BGA PIN MAP QSC6270 -U301 (bottom view) Copyright © 2009 LG Electronics. Inc. All right reserved. - 161 - LGE Internal Use Only Only for training and service purposes...
Page 163 8. BGA Pin Map MAX9877(AUDIO SUB SYSTEM) - IC500(MAX9877AEWP_TG45) LGE Internal Use Only - 164 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 166: Pcb Layout
L119 C135 L118 L120 C237 C241 C256 X100 C239 C238 C234 C254 l i f y l l Copyright © 2009 LG Electronics. Inc. All right reserved. - 167 - LGE Internal Use Only Only for training and service purposes...
Page 168 CN1 Sub PCB conn. Can not use USIM / MicroSD / Blutooth / CAMARA ﬂ ash / Side touch BL42k Copyright © 2009 LG Electronics. Inc. All right reserved. - 169 - LGE Internal Use Only Only for training and service purposes...
Page 169 Can not detect USIM U1 Bluetooth module Can not use BT X1 26Mhz Crystal Can not use BT BL42k LGE Internal Use Only - 170 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 171 Can not use Touch U100 Charge Pump U101 LCD LDO Can not use LCD Can not use LCD Backlight BL42k LGE Internal Use Only - 172 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 172 Detect / Mic U1 Hall IC Can not use Slide MIC1 MIC. Detect Can not use MIC. BL42k Copyright © 2009 LG Electronics. Inc. All right reserved. - 173 - LGE Internal Use Only Only for training and service purposes...
Page 174 CN101 FPCB 70 pin Conn Can not use Speaker / Motor / LCD / Touch Key LED / Touch BL42k Copyright © 2009 LG Electronics. Inc. All right reserved. - 175 - LGE Internal Use Only Only for training and service purposes...
Page 176: Calibration
Choose “1” in LOGIC MODE (means calibration alone) 2.Select the model name which you want in list box 3.Click Start button to calibrate a phone Copyright © 2009 LG Electronics. Inc. All right reserved. - 177 - LGE Internal Use Only...
Page 177 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 - 178 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 178 “~janghee\debug\CalAuto”. measurements of Calibration or Autotest. The result files are saved in the directory “~janghee\debug\Cal”, “~janghee\debug\Auto”, or “~janghee\debug\CalAuto”. Copyright © 2009 LG Electronics. Inc. All right reserved. - 179 - LGE Internal Use Only Only for training and service purposes...
Page 188: Exploded View & Replacement Part List
12. EXPLODED VIEW & REPLACEMENT PART LIST 12.1 EXPLODED VIEW Copyright © 2009 LG Electronics. Inc. All right reserved. - 189 - LGE Internal Use Only Only for training and service purposes...
Page 190: Replacement Parts
BLACK ,[empty] ,[empty] , , ,A-5052 ,BLACK ,[empty] ,B MBJZ00 BUTTON MBJZ0013201 COMPLEX, (empty), , , , , Copyright © 2009 LG Electronics. Inc. All right reserved. - 191 - LGE Internal Use Only Only for training and service purposes...
Page 191 MTAZ0255401 COMPLEX, (empty), , , , , COLOR MTAZ00 TAPE MTAZ0265901 COMPLEX, (empty), , , , , BLACK LGE Internal Use Only - 192 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 192 COMPLEX, (empty), , , , , BLACK WITHOUT MTAZ00 TAPE MTAZ0275201 COMPLEX, (empty), , , , , COLOR Copyright © 2009 LG Electronics. Inc. All right reserved. - 19 - LGE Internal Use Only Only for training and service purposes...
Page 193 COMPLEX, (empty), , , , , COLOR WITHOUT MTAB01 TAPE,PROTECTION MTAB0358301 COMPLEX, (empty), , , , , COLOR LGE Internal Use Only - 194 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 194 COMPLEX, (empty), , , , , BLACK WITHOUT MTAZ00 TAPE MTAZ0266201 COMPLEX, (empty), , , , , COLOR Copyright © 2009 LG Electronics. Inc. All right reserved. - 195 - LGE Internal Use Only Only for training and service purposes...
Page 195 MLAZ00 LABEL MLAZ0038301 PID Label 4 Array COLOR WITHOUT CAN,SHIELD MCBA0053501 PRESS, STS, , , , , COLOR LGE Internal Use Only - 196 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 196: Main Component
CONNECTOR,BOARD TO 20 PIN,0.4 mm,STRAIGHT , , ,; , ,0.40MM ,STRAIGHT ENBY0043601 BOARD ,MALE ,SMD ,[empty] , , Copyright © 2009 LG Electronics. Inc. All right reserved. - 197 - LGE Internal Use Only Only for training and service purposes...
Page 197 49 PIN,0.3 mm,ANGLE , , ,; , ,0.30MM ,FFC/FPC CN101 CONNECTOR,FFC/FPC ENQY0014601 ,ANGLE ,BOTH ,SMD ,[empty] ,LOCKING , R100 RES,CHIP,MAKER ERHZ0000486 47 Kohm,1/16W ,J ,1005 ,R/TP LGE Internal Use Only - 198 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 198 SAED0034401 RED ,ETC ,R/TP ,1.8x1.0x0.35T(sideview) ,; ,[empty] LD200 DIODE,LED,CHIP EDLH0015108 ,1.7~2.2V ,25mA ,57~112mcd ,631nm ,60mW ,[empty] ,[empty] ,2P Copyright © 2009 LG Electronics. Inc. All right reserved. - 199 - LGE Internal Use Only Only for training and service purposes...
Page 199 4.7 nH,S ,1005 ,R/TP , CAP,CERAMIC,CHIP ECCH0000110 10 pF,50V,D,NP0,TC,1005,R/TP CAP,CERAMIC,CHIP ECCH0000110 10 pF,50V,D,NP0,TC,1005,R/TP CAP,CHIP,MAKER ECZH0000816 12 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP LGE Internal Use Only - 200 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 200 ERHZ0000422 15 Kohm,1/16W ,J ,1005 ,R/TP RES,CHIP ERHY0000128 15K ohm,1/16W,F,1005,R/TP EUSY0382201 FPBGA ,50 ,R/TP ,4.5x4.0x0.6, BT2.1 ,; ,IC,Bluetooth Copyright © 2009 LG Electronics. Inc. All right reserved. - 201 - LGE Internal Use Only Only for training and service purposes...
Page 201 ECZH0000813 100 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP C245 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP LGE Internal Use Only - 202 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 202 ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C405 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 20 - LGE Internal Use Only Only for training and service purposes...
Page 203 ECZH0001102 18000 pF,16V ,K ,X7R ,HD ,1005 ,R/TP C530 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP LGE Internal Use Only - 204 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 204 SMD ,SMD ,18 V,4ch. EMI_ESD Filter (10 Ohm,7.5pF) WLP ,20 ,R/TP ,MUIC for 5Pin Micro USB ,; ,IC,Analog IC400 EUSY0371201 Switch Copyright © 2009 LG Electronics. Inc. All right reserved. - 205 - LGE Internal Use Only Only for training and service purposes...
Page 205 2200 ohm,1/16W ,J ,1005 ,R/TP R307 RES,CHIP,MAKER ERHZ0000443 2200 ohm,1/16W ,J ,1005 ,R/TP R316 RES,CHIP,MAKER ERHZ0000405 10 Kohm,1/16W ,J ,1005 ,R/TP LGE Internal Use Only - 206 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 206 ,SMD , dB, ,SMD , dB,H=1.85 ,; ,3.00MM ,STRAIGHT ,RF ADAPTER SW101 CONN,RF SWITCH ENWY0005301 ,SMD ,R/TP ,AU , , Copyright © 2009 LG Electronics. Inc. All right reserved. - 207 - LGE Internal Use Only Only for training and service purposes...
Page 207 ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C105 CAP,CERAMIC,CHIP ECCH0000143 1 nF,50V,K,X7R,HD,1005,R/TP C106 CAP,CERAMIC,CHIP ECCH0000155 10 nF,16V,K,X7R,HD,1005,R/TP LGE Internal Use Only - 208 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 208 22 nF,16V ,K ,X5R ,HD ,1005 ,R/TP C145 CAP,TANTAL,CHIP ECTH0001902 10 uF,10V ,M ,L_ESR ,1608 ,R/TP C146 CAP,CERAMIC,CHIP ECCH0000112 15 pF,50V,J,NP0,TC,1005,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 209 - LGE Internal Use Only Only for training and service purposes...
Page 209 ECCH0000198 2.2 uF,6.3V ,M ,X5R ,TC ,1005 ,R/TP C225 CAP,CERAMIC,CHIP ECCH0005603 2.2 uF,10V ,K ,X5R ,TC ,1608 ,R/TP LGE Internal Use Only - 210 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 210 FB702 FILTER,BEAD,CHIP SFBH0000912 1000 ohm,1005 , FB703 FILTER,BEAD,CHIP SFBH0000912 1000 ohm,1005 , FB704 FILTER,BEAD,CHIP SFBH0000912 1000 ohm,1005 , Copyright © 2009 LG Electronics. Inc. All right reserved. - 211 - LGE Internal Use Only Only for training and service purposes...
Page 211 3.9 nH,S ,1005 ,R/TP ,PBFREE L122 INDUCTOR,CHIP ELCH0003826 3.3 nH,S ,1005 ,R/TP ,chip L123 INDUCTOR,CHIP ELCH0001401 15 nH,J ,1005 ,R/TP ,Pb Free LGE Internal Use Only - 212 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 212 R650 RES,CHIP,MAKER ERHZ0000406 100 Kohm,1/16W ,J ,1005 ,R/TP RA650 RES,ARRAY,R ERNR0000404 100 Kohm,100 Kohm,8 PIN,J ,1/16W ,SMD ,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 21 - LGE Internal Use Only Only for training and service purposes...
Page 213 19.2 MHz,1.5 PPM,10 pF,SMD ,3.2*2.5*1.2 , ,; ,19.2 Mhz X100 VCTCXO EXSK0004802 ,1.5PPM ,2.8V ,3.2 ,2.5 ,1.2 , ,SMD ,P/TP LGE Internal Use Only - 214 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 214: Accessory
100-240V ,5060 Hz,5.1 V,0.7 A,CE ,STA-U12ER, Europe, ADAPTOR,AC-DC SSAD0031002 대치 Cableless ,; , ,5.1 ,0.7 , , ,WALL 2P ,USB , Copyright © 2009 LG Electronics. Inc. All right reserved. - 215 - LGE Internal Use Only Only for training and service purposes...

LG BL42k Service Manual

1 Introduction

2 Performance

3 Technical Brief

4 Trouble Shooting

5 Download

6 Block Diagram

7 Circuit Diagram

8 BGA Pin Map

9 Pcb Layout

10 Calibration

11 Test Mode

12 Exploded View & Replacement

Exploded View & Replacement Part List

Quick Links

Troubleshooting

Related Manuals for LG BL42k

Summary of Contents for LG BL42k

Table of Contents