Page 1 Internal Use Only Service Manual KM500 Date: February, 2008 / Issue 1.0...
Page 2: Table Of Contents
Trouble Shooting......... 88 <Main component> ......165 4.13 Ear-Mic Hook Detection 12.3 Accessory ......... 183 Trouble Shooting......... 89 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 3 - Only for training and service purposes...
Page 4: Introduction
A local telephone company may make changes in its communications facilities or procedure. If these changes could reasonably be expected to affect the use of the KM500 or compatibility with the network, the telephone company is required to give advanced written notice to the user, allowing the user to take appropriate steps to maintain telephone service.
Page 5 The pictures in this manual are for illustrative purposes only; your actual hardware may look slightly different. G. Interference and Attenuation An KM500 may interfere with sensitive laboratory equipment, medical equipment, etc. Interference from unsuppressed engines or electric motors may cause problems.
Page 6: Abbreviations
Time Division Multiple Access UART Universal Asynchronous Receiver/Transmitter Voltage Controlled Oscillator VCTCXO Voltage Control Temperature Compensated Crystal Oscillator Wireless Application Protocol Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 7 - Only for training and service purposes...
Page 7: General Performance
2. General Performance 2. General Performance 2.1 Product Name KM500: GPRS Class 10 / EDGE Class 10 2.2 Supporting Standard Item Feature Comment Supporting Standard GSM900/DCS1800/PCS1900 with seamless handover Phase 2+(include AMR) SIM Toolkit: Class 1, 2, 3, A-E Frequency Range...
Page 8: Hw Feature
262K Color TFT (240 x 320) Backlight : White LED Built-in Camera 2M CMOS Camera One button access Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 9 - Only for training and service purposes...
Page 9 Voice Recording Speaker Phone mode Support Travel Adapter CDROM Stereo Headset Optional Data Cable Optional T-Flash (External Memory) Optional LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 10 - Only for training and service purposes...
Page 10: S/W Features
Voice Memo Call Reminder Network Selection Automatic Mute Call Divert Call Barring Call Charge (AoC) No for Cingular Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 11 - Only for training and service purposes...
Page 11 Camera 2M F/F / Digital Zoom: x4 JAVA CLDC V1.1 / MIDP V2.0 Download Over WAP Voice Dial LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 12 - Only for training and service purposes...
Page 12 Function difference GSM850/ RF Band GSM900/ DCS1800 PCS1900 Latin Latin Design Market Europe Asia / CIS America America Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 13 - Only for training and service purposes...
Page 13: Hw Circuit Description
A/D and D/A converters which provide automatic on-chip correction of DC offsets. <Fig.1> Receiver Part Block Diagram LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 14 - Only for training and service purposes...
Page 14 DAC which cancels the DC offset at the output. The sequencer ensures that on-chip filters have sufficient time to settle before applying correction in the next digital offset cancellation stage. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only...
Page 15: Transmitter Part
Three main functions are identified in the transmitter architecture; I/Q vector modulation at IF frequency, amplitude and phase loop at IF/RF frequencies and power amplification. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 16 - Only for training and service purposes...
Page 16 3. HW Circuit Description 3.2.3 RF Synthesizer 3.2.4 Front End Module Specification 3.2.4.1 Block Diagram and Internal Matching Condition Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 17 - Only for training and service purposes...
Page 17: Power Amplifier Module
-. Built-in LDO circuit -. GPRS Class 12 operation compatible -. Integrated directional coupler 3.2.5.2 Circuit Diagram and peripheral components LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 18 - Only for training and service purposes...
Page 18 SysClkEn is negated, the SysClk is held low, and if the TEST1 pin is low by the default settings, the logic power supply by typical 1.8 volts to the internal core logic circuits is also switched off. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only...
Page 19: Digital Baseband
- A DSP subsystem based on a UMA 2.6 architecture integrating a C55x DSP core The OMAPV1030’s silicon process technology is a c027.0 90-nm digital CMOS. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 20 - Only for training and service purposes...
Page 20: Block Description
The other OMAPV1030 modules or subsystems are connected to the OMAP3.4 platform through the L3 and L4 interconnects. <Fig.7> OMAPV1030 Top-Level Architecture Overview Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 21 - Only for training and service purposes...
Page 21 - The second one is based on a two-wire bidirectional scheme: one wire for data in/out, and one for control receive/transmit. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 22 - Only for training and service purposes...
Page 22 - The serial radio interface module is used for the two-wire data interface. - A system clock interface receives a squared 26-MHz clock from the RF IC. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only...
Page 23: Sim Interface
VRUSIM(Power supply VCC): 3 V 10% (class B) or 1.8 V 10% (class C) Misc_ext_irq: USIM card presence detection (USIM_CD) purposes. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 24 - Only for training and service purposes...
Page 24: Uart Interface
UART3_TXD UART3_TXD Transmit Data UART3_RTS UART3_RTS Request To Send UART3_CTS UART3_CTS Clear To Send <Table.2> UART Interface Spec Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 25 - Only for training and service purposes...
Page 25 LCD_BL_EN LCD Backlight Enable HIGH gpio_60 LCD_ID LCD Maker ID gpio_63 FM_RESET FM RESET <Table.3> GPIO Map LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 26 - Only for training and service purposes...
Page 26: Multimedia Ic
The on-chip USB 2.0 compliant controller enables the data transmission between a personal computer and st orage device such as NAND flash, SD. <Fig.10> Functional Block Diagram of TCC740xA Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 27 -...
Page 27: General Features
LSI, and this LSI can also send interrupt request to the external host controller. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 28 - Only for training and service purposes...
Page 28 The features of CIF are is 8-bit data and sync line which supports CCIR 601/656, 4:2:2,YCbCr(YUV). The TCC7402 provides LCD interface. The LCD MODULE of KM500 is 2” TFT-LCD which is displayed 65000 color. The LCD controller is used to send out image data from the system memory Copyright ©...
Page 29: Analog Baseband
- A JTAG and boundary scan - A USB 2.0 OTG transceiver with a carkit interface <Fig.11> TWL3029 Architecture LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 30 - Only for training and service purposes...
Page 30 3.5.3 Power Resources The power supply module of Triton generates the different power supplies required by Triton, the processors and the external peripherals. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 31 - Only for training and service purposes...
Page 32 - CHARGER_IC:When a charger voltage is above VBAT+0.4V on VCHG. 3.5.6 Memories - 1G Mbit NAND Flash + 512Mbit DDR RAM Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 33 - Only for training and service purposes...
Page 33 S_MENU_LEFT S_MENU_RIGHT PLAY R024 KBR(5) R026 KBC(0) R027 KBC(1) R028 KBC(2) R029 KBC(3) R030 KBC(4) <Fig.13> Keypad schematic LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 34 - Only for training and service purposes...
Page 34: System Connector
VBUS USB POWER( +5.0 V) UART2_TX TEST : UART2 (T ransmit Data) UART2_RX TEST : UART2 (Receive Data) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 35 - Only for training and service purposes...
Page 35: Bluetooth Interface
F_LDO_OUT AUD_FSYNC MCSI1_SYNC MCSI1_DIN BB_LDO_OUT1 AUD_OUT BB_LDO_OUT2 AUD_CLK MCSI1_BCLK C206 C207 C208 C209 C210 UART_TXD <Fig.14> BT schematic LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 36 - Only for training and service purposes...
Page 36: Pin Description
High Z with PD, except when transmitting voice samples GPIO0 EXT_CLK_REQ_OUT GPIO1 EXT_CLK_REQ_IN HCI UART INTERFACE HCI_RX HCI UART data receive HCI_TX HCI UART data transmit Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 37 - Only for training and service purposes...
Page 37 • TI proprietary low power scan achieves paging and inquiry scans with fast RSSI algorithm, at 1/3rd normal power. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 38 - Only for training and service purposes...
Page 38 Filter circuit Filter circuit circuit Filter Filter BRF6300 BRF6300 BRF6300 BRF6300 BRF6300 BRF6300 BRF6300 <Fig.15> BT Block Diagram Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 39 - Only for training and service purposes...
Page 39: Function Difference
RF Band GSM900/ DCS1800 PCS1900 Latin Latin Design Market Europe Asia / CIS America America < Internal Antenna > LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 40 - Only for training and service purposes...
Page 40: Bom Difference
Antenna matching L403 : ECZH0000813 (100pF) L403 : ELCH0004726 (1.5nH) L400 : ELCH0001031 (15nH) L400 : ELCH0004711 (22nH) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 41 - Only for training and service purposes...
Page 41: Trouble Shooting
-Connect mobile switch cable between Communication test set and DUT when you need to make a phone call. -Follow trouble shooting procedure LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 42 - Only for training and service purposes...
Page 42: Rf Part Technical Brief
R411 U404 RT9011-MMPQW VOUT1 TEMP_SENSE REGEN VOUT2 PT400 R412 C444 22K THERMISTER 4.7u PGND <Fig.17> Regulator Circuit Diagram Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 43 - Only for training and service purposes...
Page 43 VREG RPF09036B 0.01u VBAT2 C438 GND5 BAND_SELECT POUT_XCS PIN_XCS L406 1.8nH C440 C441 1.2p <Fig.18> PAM Circuit Diagram LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 44 - Only for training and service purposes...
Page 44 R406 R407 C_VCCRF C418 VCCVCXO SLICER_IN VOUTEF1 C429 0.01u <Fig.20> RF Transceiver Circuit Diagram <Fig.21> DCXO Circuit Diagram Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 45 - Only for training and service purposes...
Page 45: Rf Part Trouble Shooting
Regulator Circuit 2. Check DCXO Circuit 3. Check FEM Circuit 5. Check Transceiver Circuit Re-download SW & CAL LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 46 - Only for training and service purposes...
Page 46 TP4_RF TP5_RF VBAT TP1_RF VCC_SYN C442 C443 4.7u C_VCCRF U404 RT9011-MMPQW VOUT1 REGEN VOUT2 C444 TP2_RF 4.7u PGND C443(C444) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 47 - Only for training and service purposes...
Page 47 VCCVCXO SLICER_IN VOUTEF1 SW400 FL400 <Fig.22> DCXO Circuit Diagram DCXO C409 26MHz? DCXO is O K. Check U402 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 48 - Only for training and service purposes...
Page 48: Mobile Switch
GSM1800_RX2 GSM1800_RX1 GSM900_RX2 GSM900_RX1 GND1 GND2 SW400 5 GND3 GND4 C424 MM8430-2600RB3 TP4_RF C425 TP5_RF 100nH C427 L404 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 49 - Only for training and service purposes...
Page 50 R403 R404 R405 C428 SYSCLKEN C426 0.01u R406 R407 C_VCCRF C429 0.01u C740 TX_EN C739 C738 TOP Point Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 51 - Only for training and service purposes...
Page 51 2. Check DCXO Circuit 3. Check FEM Circuit 4. Check Transceiver Circui t Re-dow nload SW & CAL LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 52 - Only for training and service purposes...
Page 52 Check R4 20RF LEVEL Check U401 ≥ 0dBm Re-download SW & CAL ≥ C711 LB_ HB TX_ANT_SW_EN <GSM900> <PCS1900> Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 53 - Only for training and service purposes...
Page 53: Bluetooth Trouble Shooting
Check BT_RF_OUT Check FL200(Banun Filter) (Refer to figure 5) Check DBB(U103) Re-Download S/W Replace BT Module & Analog switch LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 54 - Only for training and service purposes...
Page 54 Check 1.8V High TP1_BT Check BT_CLK C200(1.8v) 4.3.1.3 Checking BT_VBAT Checking C201 (G7,H3,F5) Check 4.2V High TP2_BT Check BT_NRST C201(4.2v) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 55 - Only for training and service purposes...
Page 55 Check with Spectrum Analyzer in BT Equipment connection status. PAD200 PAD201 1000p C202 DBF71B001 FL200 TP4_BT C204 100p C202 TP4_BT LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 56 - Only for training and service purposes...
Page 56: Baseband Part Troubleshooting
- END_KEY Dome Switch condition& Side FPCB condition - Check the output voltages of all LDOs. * DBB Power-On Trouble Troubleshooting Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 57 - Only for training and service purposes...
Page 57 C132: VRIO => 1.8v C133: VRABB => 2.8v C134: VRMEM => 1.8v C135: VRPLL => 1.3v / 1.4v / 1.05v LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 58 - Only for training and service purposes...
Page 59 Check the dome sheet and PWON level Check the ABB LDO? Resolder or Replace ABB Booting is operating properly LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 60 - Only for training and service purposes...
Page 60: Charging Trouble Shooting
60°C ~: Not charging operation small charging operation Battery ICON 3.74V± 0.05V 3.64V± 0.05V 3.50V± ± 0.05V 3.45V± 0.05V BLINKING Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 61 - Only for training and service purposes...
Page 61 ISL6299 TP9_BB CRDL IMIN _PPR TP10_BB _CHG _CHG_STAT ICDL USBON CHG_EN PGND R105 C104 R108 C105 R109 100K LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 62 - Only for training and service purposes...
Page 62 Is LOW in case charging ? Replace the IC The Battery may have Problem. Battery is OK? Change Battery Charging is operating properly Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 63 - Only for training and service purposes...
Page 63 4. Trouble Shooting Charging Graph While Charging enable is low, the charging scheme is operated. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 64 - Only for training and service purposes...
Page 64: Lcd Display Trouble Shooting
- The FPCB which connects the LCD Module z Trouble Shooting Setup - Connect PIF Jig, and Power on Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 65 - Only for training and service purposes...
Page 66 LCD Timing Diagram DATA SET UP TIME SPEC MIN 40n 435ns DATA HOLD TIME SPEC MIN 0n 20ns Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 67 - Only for training and service purposes...
Page 67 FADEIN_BL_EN KBR(4) SLIDE_KEY_BL_EN KBR(5) LCD_BL_EN DP_PWON KBC(0) KBC(1) MLCD_RESET KBC(2) MLCD_CS KBC(3) MLCD_RS KBC(4) MLCD_WR MLCD_RD MLCD_VSYNC FLASH_LED LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 68 - Only for training and service purposes...
Page 68 4.5.2 Check Point #2 - FPCB 4.5.3 Check Point #3 - Main PCB FPCB Connector < CN800 > EMI filter Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 69 - Only for training and service purposes...
Page 69 - You must check signals LCD Connector Side of a Main FPCB because you could check final signal states through EMI Filter, connector, FPCB and etc. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 70 - Only for training and service purposes...
Page 70 After changing the board, The LCD is broken. LCD Display is OK? Change the LCD. Change the board Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 71 - Only for training and service purposes...
Page 71: Camera Trouble Shooting
Trouble Shooting Setup - Enter the engineering mode. - Go to menu ‘2.Baseband 3.Camera 1.Main LCD Preview’ LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 72 - Only for training and service purposes...
Page 72 VCAM_28 TP12_BB VCAM_CORE_15 CAM_PCLK TP13_BB CAM_MCLK CAM_HS CAM_VS TP14_BB CAM_D(0) CAM_D(1) CAM_D(2) CAM_D(3) CAM_D(4) TP15_BB CAM_D(5) CAM_D(6) CAM_D(7) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 73 - Only for training and service purposes...
Page 73 - You must check camera signals at a Connector Side of a Main PCB because you could check final signal states through connector. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 74 - Only for training and service purposes...
Page 74 Replace the FPCB The Camera is broken. After changing the board, Change the Camera. Camera is OK? Change the board Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 75 - Only for training and service purposes...
Page 75: Flash Led Trouble Shooting
Check Point - Check the connection status - Check the soldering of Components - Check the FLASH_LED signal LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 76 - Only for training and service purposes...
Page 76 R031 1.5K FLASH_EN EN_FLSH LED_CA2 LED_CA3 R032 EN_SET LED_CA4 LCD_BL_EN C012 C013 C014 C015 U003 R034 AAT2805IXN-4.5-T1 100K Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 77 - Only for training and service purposes...
Page 77 After changing the board , The LED is broke n. Change the LED. LED is OK? Change the board LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 78 - Only for training and service purposes...
Page 78: Sim Detect Trouble Shooting
SIM_RST: SIM Card async/sync reset SIM_RnW: SIM Card data line direction SIM_IO: SIM Card bi-directional data line SIM_CD: SIM Card presence detection Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 79 - Only for training and service purposes...
Page 79 Trouble Shooting Procedure - Check the power supply - Check the soldering of SIM socket - Check the SIM LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 80 - Only for training and service purposes...
Page 80 SIM card is b roken . Change the SIM Card. The DBB(U10 3) is broken. Change th e bo ard . Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 81 - Only for training and service purposes...
Page 81: Slide Up/Down Trouble Shooting
Slide Signal Status L : Down (Magnetized) => Slide Down H : Up (Not magnetized) => Slide Up LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 82 - Only for training and service purposes...
Page 82 Folder signal is low on Replace the U100. Magnetizing into U100? The U100 is broken The DBB(U103) is broken. Change the board. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 83 - Only for training and service purposes...
Page 83: Speaker/Receiver Trouble Shooting (Common Path)
Replace the component Of CN800 of main -board Replace or Resolder the Check the U603 of main -board component LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 84 - Only for training and service purposes...
Page 84 Check t he U602 or U504 component Replace or Resolder the Check t he U102 of main -board component Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 85 - Only for training and service purposes...
Page 85: Mic Trouble Shooting
- MICIN, MICIP signal from MIC(MIC600) z Check Point - MIC bias - Audio Signal level of the Microphone - Soldering of Components LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 86 - Only for training and service purposes...
Page 86: Mic Trouble
Resolder C627 & L602 Check the signal Replace MIC600 level at each side of MIC600. change the Main Board Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 87 - Only for training and service purposes...
Page 87: Ear-Mic Jack Detection Trouble Shooting
Re-solder Pin #8 of CN300 The main_PCB has a Problem, Change the main_PCB. CN300 CN300 VA301 FB305 TP27_BB LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 88 - Only for training and service purposes...
Page 88: Ear-Mic Hook Detection Trouble Shooting
Check the soldering status Re-solder R300, R303, L305, Of R300, R303, L305, FB302 FB302 U103(DBB) is broken. Change the board. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 89 - Only for training and service purposes...
Page 89: Ear-Mic Headset Mic Trouble Shooting
Resolder Pin #2 of CN300 Check the soldering Pin #2 of CN300 U102(ABB) is broken. Change the board. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 90 - Only for training and service purposes...
Page 90: Ear-Mic Headset Mic Trouble Shooting
RPWON UART3_DSR VBUS FB300 TP29_BB L305 R308 FB302 EAR HEADSET TP30_BB TP28_BB C310 R307 FB303 FB304 L302 L303 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 91 - Only for training and service purposes...
Page 91: Fm-Radio Trouble Shooting
C223 C224 U203 C221 C225 R203 C220 0.1u C226 C227 CLK_32K 0.1u 0.1u C228 R204 TP32_BB TP33_BB TP31_BB LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 92 - Only for training and service purposes...
Page 92: Transflash Trouble Shooting
TF_CLK, CMD, DAT0,DAT1 , Transflash card has a problem. DAT2,DAT3 Change the Transflash card S900 has a problem. Change the main-board Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 93 - Only for training and service purposes...
Page 93 VRMMC Signal(Power ON) <VRMMC Signal when T-Flash is inserted> z TF_DAT0 Signal (Music Play) <TF_DAT0 Signal while T-Flash is read> LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 94 - Only for training and service purposes...
Page 94: Main Key Backlight Led Trouble Shooting
Check Point - VBAT level ( 3.35 ~4.2V) - LEDs - Main key, Main, Main FPCB connection) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 95 - Only for training and service purposes...
Page 95 Check the condition of Q100 Q100(Main key) is Working? If problem, Replace Q100 Backlight will work properly LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 96 - Only for training and service purposes...
Page 96: Slide Key Backlight Led Trouble Shooting
R or Replace LEDs not working Check the condition U103(Main) is Working? If problem, Replace U103(Main) Backlight will work properly Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 97 - Only for training and service purposes...
Page 97: Vibrator Trouble Shooting
If problem, Replace CN100(Main-Sub) Check the soldering of Re-solder Vibrator Vibrator of Main-Sub Vibrator has a problem. Change Vibrator LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 98 - Only for training and service purposes...
Page 98 4. Trouble Shooting z Vibrator Diagram in the engineering Mode (Alert > vibrator) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 99 - Only for training and service purposes...
Page 99: Download
5.2.1.2 IBM compatible PC supporting USB with Windows 98 or newer If you use data kit, you should have a battery with the voltage above 3.7V. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 100 - Only for training and service purposes...
Page 100 5.2.2.2 IBM compatible PC supporting RS-232 with Windows 98 or newer If you use battery, you should have a battery with the voltage above 3.7V. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 101 -...
Page 101: Download Procedure
5. Download 5.3 Download Procedure 5.3.1 Computer Program file -> BurningLegion.EXE Click LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 102 - Only for training and service purposes...
Page 102 5. Download 5.3.2 Click the “Model” button. Then, choose KM500_NFC_Series... which is going to download. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 103 - Only for training and service purposes...
Page 104 5. Download 5.3.4 After Clicking “the Import a file list”, choose download file Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 105 - Only for training and service purposes...
Page 105: Start Download
5. Download 5.3.5 start download For Contents File LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 106 - Only for training and service purposes...
Page 106: Block Diagram
UART_RXD Switch UART_TXD BT_RX, BT_TX BT_CTS, BT_RTS 3.5PHI Analog Switch TR_USB_DP UART_RXD, TR_USB_DM Analog I/O Con. UART_TXD Switch Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 107 - Only for training and service purposes...
Page 107 DIF_WR MAIN LCD DIF_ADS 176*220 (2.0î) DIF_VSYNC DP_2 TFT 262K VBACKUP BACKUP BATT. E_DATA(17:0) SPEAKER RECEIVER KBR(5:4)/KBC(4:0) MAIN_SLIDE LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 108 - Only for training and service purposes...
Page 108: Circuit Diagram
VRMEM VRDBB VRIO VREXTH 1.8 / 200@1.8V 100@2.8V N.A. VREXTL 1.3/1.05 200@1.3V 1.8 / 2.8 100@1.8~2.8V Q100 DTC144EM-T2L - 109 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 109 C222 GND1 GND2 NFWP _RST VRIO C223 C224 C225 R203 0.1u C226 C227 CLK_32K 0.1u 0.1u C228 R204 - 110 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 110 0.1u MM_USB_DP VRIO C317 VRIO R317 BOOT_SEL R318 BATT_TEMPS BATT_TEMP USB_BOOT_SEL C318 R321 47pF R320 Q300 VBUS 2SC5585 - 111 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 111 C442 C443 4.7u C_VCCRF R411 U404 RT9011-MMPQW VOUT1 TEMP_SENSE REGEN VOUT2 PT400 R412 C444 22K THERMISTER 4.7u PGND - 112 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 112 1000p XTIN CLK_32K MM_XIN UTM_X1 XTOUT MM_XOUT UTM_X0 R539 FILTER0 SDR_CKE FILTER1 4.7K C529 C530 1800p C531 1800p - 113 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 113 C629 0.1u MIC600 100nH C638 L604 100nH MIC_N C630 0.1u C632 C633 VA600 EVLC14S02050 C635 SPM0204LE5-QB C634 100p - 114 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 114 VBAT EVLC5S02100 EVLC5S02100 EVLC5S02100 VA700 VA701 VA702 SIDE_KEY_CAM R714 KBC(2) R715 KBR(3) CN702 EVLC5S02100 EVLC5S02100 VA703 VA704 LED_BC - 115 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 115 KBR(3) KBC(3) TF_CLK TF_CMD TF_DAT1 VBACKUP TF_DAT0 CAM_RST C805 C806 C807 C808 CIF_PD 0.1u 0.1u VA705 C809 EVLC5S02100 - 116 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 116 (CAM) KB101 KBR(3) KBC(2) (CAM) GND2 CN101 VOLUME SIDEKREY (UP) (DOWN) KB102 KB103 KBR(3) KBC(0) (UP) KBC(1) (DOWN) - 117 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 117 R031 1.5K FLASH_EN EN_FLSH LED_CA2 LED_CA3 R032 LCD_BL_EN EN_SET LED_CA4 C012 C013 C014 C015 U003 R034 AAT2805IXN-4.5-T1 100K - 118 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 118 CAMERA FLASH LED VIBRATOR FLASH_LED VBACKUP LEWW-S35KA LD900 VA900 OUT900 VIBRATOR ICVN0505X150FR C902 C903 0.1u OUT901 R900 R901 R902 R903 - 119 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 119 Audio Filter & PAD R100 SPK101 SPK_RCV_P C101 100p R101 SPK102 SPK_RCV_N C102 C103 VA101 VA102 EVLC18S02015 EVLC18S02015 - 120 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 120: Bga Ic Pin Check
8. BGA IC Pin Check 8. BGA IC Pin Check Bluetooth IC: BRF6300 IN USE Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 121 - Only for training and service purposes...
Page 138: Top View
8. BGA IC Pin Check Multi Media Chip (TCC7402) TOP VIEW Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 139 - Only for training and service purposes...
Page 140: Pcb Layout
- Slide open/close operation < KEY BACKLIGHT> < KEY BACKLIGHT> - Numeric key B/L - Numeric key B/L - 141 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 141 < SIM Connector> < Charging IC> - Socket soldering - Check the TA & battery < MIC> - Voice input - 142 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 142 9. PCB LAYOUT < KEY BACKLIGHT> - Function key B/ < Music Lighting> - MP3 Light operation - 143 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 143 - LCD B/L problem < FPCB connector> - connector combination < Music Light driver> - MP3 Lighting problem - 144 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 144 - CAM FLASH operation - Socket soldering - Proper u-SD is used < Back-up battery> - RTC operation - 145 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 145 - LCD display & Function key problem < FPCB connector> < FPCB connector> - connector combination - connector combination - 146 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 150: Calibration
GSM 5 Level 33 dBm Mobile Base Station Station Tx Cal = In this case, to make MS transmit 33dBm Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 151 - Only for training and service purposes...
Page 151: Calibration Program - Hot_Kimchi
10.3.2 Required Equipments - Test PC with PCMCIA slot - GPIB card - E5515C(Agilent 8960 series) - Power supply LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 152 - Only for training and service purposes...
Page 153 10. Calibration 10.3.4 Calibration program - HOT_KIMCHI 10.3.4.1 Open the HOT_KIMCHI folder 10.3.4.2 Execute Program (HOT_KIMCHI) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 154 - Only for training and service purposes...
Page 154 10.3.4.3 Set the “SETTING” menu 10.3.4.4 Click the “START” LOGIC MODE 1. CAL ONLY 2. AUTO ONLY 3. CAL + AUTO Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 155 - Only for training and service purposes...
Page 156: Engineering Mode
DUMMY ii) Irda a. PANEL b. L1 TRACE L c. HandsFree d. Irda e. DUMMY 6) Battery Info1 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 157 - Only for training and service purposes...
Page 157 1. Uplink / Amp 2. Downlink 3. Sidetone c. Stream 1. Uplink / Amp 2. Stereo Left 3. Stereo Right LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 158 - Only for training and service purposes...
Page 158 Blu etooth Off iv ) BT Channel Test v)Activ ate PTS Test Mode vi) XHTML te st Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 159 - Only for training and service purposes...
Page 159 1) GSM ALL BAND 2) GSM 850 3) GSM 900 4) DCS 1800 5) PCS 1900 9. TCC Power LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 160 - Only for training and service purposes...
Page 160: Exploded View & Replacement Part List
12. EXPLODED VIEW & REPLACEMENT PART LIST 12.1 EXPLODED VIEW - 161 - Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 162: Replacement Parts
MBJL0046301 COMPLEX, (empty), , , , , Black MCCE00 CAP,RECEPTACLE MCCE0040201 COMPLEX, (empty), , , , , Black Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 163 - Only for training and service purposes...
Page 163 COMPLEX, (empty), , , , , Without Color MTAZ01 TAPE MTAZ0198802 COMPLEX, (empty), , , , , Without Color LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 164 - Only for training and service purposes...
Page 164: Main Component
SAEB0023501 ASSY,KEYPAD,INSERT ADCA00 DOME ASSY,METAL ADCA0071401 Without Color C,15 SAEE00 PCB ASSY,KEYPAD,SMT SAEE0026101 PCB ASSY,KEYPAD,SMT SAEC00 SAEC0024301 BOTTOM Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 165 - Only for training and service purposes...
Page 165 680 ohm,1/16W ,J ,1005 ,R/TP R026 RES,CHIP,MAKER ERHZ0000505 680 ohm,1/16W ,J ,1005 ,R/TP R027 RES,CHIP,MAKER ERHZ0000505 680 ohm,1/16W ,J ,1005 ,R/TP LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 166 - Only for training and service purposes...
Page 166 FR-4 ,0.5 mm,BUILD-UP 4 , ,; , , , , , , , , , SUSY00 SPEAKER SUSY0027602 MAIN ,240*320 (2.0") ,37.2*52.1*1.5(T) ,262k ,TFT ,TM SVLM00 LCD MODULE SVLM0027001 ,uPD161707 (NEC) ,IPS Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 167 - Only for training and service purposes...
Page 167 MCBA001 CAN,SHIELD MCBA0023201 PRESS, STS, , , , , Without Color MLAZ4 LABEL MLAZ0040401 WEEE Marking Label Without Color LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 168 - Only for training and service purposes...
Page 168 10 uF,10V ,M ,STD ,1608 ,R/TP ,; , ,[empty] ,[empty] , ,- C123 CAP,TANTAL,CHIP ECTH0004807 55TO+125C , ,[empty] ,[empty] ,[empty] ,[empty] Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 169 - Only for training and service purposes...
Page 169 ECZH0000822 1.5 pF,50V ,C ,NP0 ,TC ,1005 ,R/TP C204 CAP,CHIP,MAKER ECZH0000813 100 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 170 - Only for training and service purposes...
Page 170 ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C311 CAP,CERAMIC,CHIP ECCH0000110 10 pF,50V,D,NP0,TC,1005,R/TP C312 CAP,CERAMIC,CHIP ECCH0000129 120 pF,50V,J,NP0,TC,1005,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 171 - Only for training and service purposes...
Page 171 10000000 pF,10V ,Z ,Y5V ,HD ,2012 ,R/TP , , ,[empty] C435 CAP,CERAMIC,CHIP ECCH0003002 ,[empty] ,[empty] ,[empty] ,[empty] ,[empty] ,1.25 mm C436 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. - 172 - Only for training and service purposes...
Page 172 ECCH0009216 22 pF,25V ,J ,X7R ,TC ,0603 ,R/TP C528 CAP,CERAMIC,CHIP ECCH0000143 1 nF,50V,K,X7R,HD,1005,R/TP C529 CAP,CERAMIC,CHIP ECCH0000146 1.8 nF,50V,K,X7R,HD,1005,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 173 - Only for training and service purposes...
Page 173 ECZH0000813 100 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP C635 CAP,CERAMIC,CHIP ECCH0005604 10 uF,6.3V ,M ,X5R ,TC ,1608 ,R/TP LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 174 - Only for training and service purposes...
Page 174 1000 ohm,1005 ,chip bead, 200mA,DCR0.9ohm ,; , , FB306 FILTER,BEAD,CHIP SFBH0008103 ,SMD ,R/TP FB800 FILTER,BEAD,CHIP SFBH0000903 600 ohm,1005 , Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 175 - Only for training and service purposes...
Page 175 4.7 nH,S ,1005 ,R/TP , L408 INDUCTOR,CHIP ELCH0004704 4.7 nH,S ,1005 ,R/TP , L409 INDUCTOR,CHIP ELCH0001405 3.3 nH,S ,1005 ,R/TP ,PBFREE LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 176 - Only for training and service purposes...
Page 176 10 Kohm,1/16W ,J ,1005 ,R/TP R126 RES,CHIP ERHY0009506 100 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP R127 RES,CHIP,MAKER ERHZ0000402 10 ohm,1/16W ,J ,1005 ,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 177 - Only for training and service purposes...
Page 177 120 ohm,1/20W(0.05W) ,J ,0603 ,R/TP R407 RES,CHIP ERHY0009503 100 ohm,1/20W(0.05W) ,J ,0603 ,R/TP R408 RES,CHIP ERHY0009503 100 ohm,1/20W(0.05W) ,J ,0603 ,R/TP LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 178 - Only for training and service purposes...
Page 178 10 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP R540 RES,CHIP ERHY0009526 4.7 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP R541 RES,CHIP,MAKER ERHZ0000486 47 Kohm,1/16W ,J ,1005 ,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 179 - Only for training and service purposes...
Page 179 WQFN16 ,16 PIN,R/TP ,Dual DPDT Analog Switch ,; U302 EUSY0342401 ,IC,Analog Switch U303 EUSY0319201 DFN ,10 PIN,R/TP ,OVP LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 180 - Only for training and service purposes...
Page 180 SOD-923 ,5 V,150 mW,R/TP ,1.0*0.6*0.4 SAFD00 PCB ASSY,MAIN,SMT TOP SAFD0100001 C102 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 181 - Only for training and service purposes...
Page 181 5.5 V,+-30 ,SMD ,1005, 100 pF, Pb free SMZY00 MODULE,ETC SMZY0017801 1GB / MICROSD / MLC 1 DIE ,; ,Module Assembly LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. - 182 - Only for training and service purposes...
Page 182: Accessory
100-240V ,5060 Hz,5.1 V,.7 A,NOM ,AC-DC ADAPTOR ,; ADAPTOR,AC-DC SSAD0024602 ,85Vac~264Vac ,5.1V (+0.15V, -0.2V) ,700mA ,5060 , ,WALL 2P ,I/O CONNECTOR , Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 183 - Only for training and service purposes...
Page 183 Note...
Page 184 Note...

LG KM500 Service Manual

1 Introduction

2 General Performance

3 HW Circuit Description

4 Trouble Shooting

5 Download

6 Block Diagram

7 Circuit Diagram

8 BGA IC Pin Check

9 Pcb Layout

10 Calibration

11 Engineering Mode

12 Exploded View & Replacement Part List

Quick Links

Troubleshooting

Related Manuals for LG KM500

Summary of Contents for LG KM500

Table of Contents