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LG FM300 Service Manual

LG FM300 Service Manual

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Internal Use Only
Service Manual
FM300
Date: January, 2011 / Issue 1.0

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Summary of Contents for LG FM300

  • Page 1 Internal Use Only Service Manual FM300 Date: January, 2011 / Issue 1.0...

  • Page 2: Table Of Contents

    6. BLOCK DIAGRAM ..............73 7. CIRCUIT DIAGRAM .............. 74 8. BGA PIN MAP ..............85 9. PCB LAYOUT ................. 86 LGE Internal Use Only -  - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 3: Introduction

    LGE Internal Use Only - 3 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 4 • When returning system boards or parts like EEPROM to the factory, use the protective package as described. LGE Internal Use Only - 4 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 5: Abbreviations

    E-UTRA Absolute Radio Frequency Channel Number EEPROM EEPROM Electrical Erasable Programmable Read-Only Memory Electrical Erasable Programmable Read-Only Memory Electrostatic Discharge LGE Internal Use Only - 5 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 6 Offset Phase Locked Loop Power Amplifier Module Printed Circuit Board Programmable Gain Amplifier Phase Locked Loop PSTN Public Switched Telephone Network LGE Internal Use Only - 6 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 7 Universal Asynchronous Receiver/Transmitter User Equipment Uplink Voltage Controlled Oscillator VCTCXO Voltage Control Temperature Compensated Crystal Oscillator Wireless Application Protocol LGE Internal Use Only - 7 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 8: Performance

    Microphone No: only CPE Speaker/Receiver No: only CPE Travel Adapter Yes: External power source MIDI No: only CPE LGE Internal Use Only - 8 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 9: Lte Technical Specification (Ts 36.101 V10.0.0)

    Interference CW Signal Level - 40 dBc Transmit Intermodulation Intermodulation Product -29 dBc -35 dBc Measured Bandwidth 9 MHz 9 MHz LGE Internal Use Only - 9 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 10 30 MHz f < 1000 MHz -36 dBm 100 kHz 1 GHz f < 12.75 GHz -30 dBm 1 MHz LGE Internal Use Only - 10 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 11 < -57 dBm / 100 kHz @ 30MHz ≤ f < 1 GHz < -47 dBm / 1 MHz @ 1 GHz ≤ f ≤ 12.75 GHz LGE Internal Use Only - 11 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 12: Technical Brief

    • UART and JTAG interface, up to 32 GPIOs. • BCM5358U package: 15 mm 15 mm 366-pin TFBGA LGE Internal Use Only - 1 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 13 DQ0-DQ15 LDQS LDQS 256Mb UDQS DDR1 SDRAM CAS# Memory RAS# A0-A12 BA0,BA1 BA0,BA1 Figure 3.2 MT46V16M16P-6TIT Block Diagram LGE Internal Use Only - 13 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 14 • 64-byte user-lockable, one-time programmable (OTP) area • Packages VDFPN8(F8) 8 x 6 mm(MLP8) Figure 3.3 N25Q128 Block Diagram LGE Internal Use Only - 14 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 15 R407 XTAL_OUT GND2 HOT2 HOT1 GND1 20MHz C422 C423 EXXY0027801 XTAL_GND FB401 FB400 Figure 3.4 Crystal Circuit diagram LGE Internal Use Only - 15 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 16 R307 NP_USIM_DET/ G6 G4 G2 C339 C340 C341 C342 R308 LTE_USIM_DET/ 0.1u 100p C350 VDD_3.3 Figure 3.5 SIM LGE Internal Use Only - 16 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 17: Ethernet Interface

    0.1u 0.1u CN101 P1_RDP P1_RDN P1_TDP C137 R146 P1_TDN C138 R148 ENZY0030801 85507-5001 Figure 3.6 Transformer & RJ-45 LGE Internal Use Only - 17 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 18 VOUT PGND4 EUSY0369702 100n 0.1u PGND3 VLDO 2.2u LTE_EN C126 LTE_PWR_EN KRX102U EQBA0000601 Figure 3.7 SC424 Circuit Diagram LGE Internal Use Only - 18 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 19: Lte(Sub)

    SYSC CPG DBG b AMBA APB b i t f Figure 3.8 L2000 Functional Block Diagram LGE Internal Use Only - 19 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 20 This mode dramatically reduces random access time thus enabling many applications requiring fast code execution without shadowing the memory content on a RAM. Figure 3.9 Memory LGE Internal Use Only - 0 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 21 The VMODE0 and VMODE1 pads are used to switch between high, medium and low power modes to reduce current consumption and gain in the back-off conditions. Figure 3.10 PAM Module LGE Internal Use Only - 1 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 22 R200 AFC_OUT C201 R202 REF_CLK_OUT U200 19.2MHz C203 C204 NL17SZ04XV5T2G 100n C205 TCXO_IN Figure 3.11 TCXO Circuit Diagram LGE Internal Use Only -  - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 23 3. TECHNICAL BRIEF 3.2.5 SIM interface (sub board, U600) Xenon[FM300] supports 1.8V & 2.9V plug in SIM, SIM interface scheme is shown in figure SIM_IO, SIM_CLK, SIM_RST ports are used to communicate with BBP(S-Gold3) and the SIM power supply enabled by PMIC.

  • Page 24: Trouble Shooting

    C104 AGND1 PGND5 SC424 C103 VOUT PGND4 EUSY0369702 0.1u 100n PGND3 VLDO 2.2u NP_EN C115 VA100 SPPH410100 ESPY0001701 LGE Internal Use Only - 4 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 25 4. TROUBLE SHOOTING 4. TROUBLE SHOOTING CN100 CN102 LGE Internal Use Only - 5 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 26 Check TP3 is high? R14. Check soldering of U2 or (4) Check the TP4 replace TP4= 3.3V FINISH LGE Internal Use Only - 6 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 27: Power On Trouble - Bcm Booting Trouble

    SWREG_NDRIVE S1 S2 R144 SWREG_VFB_SEN VDD_3.3 C139 0.1u R152 VCNTL 2SB1424 EQBP0008701 VDD_2.5 R154 VSENSE2P5 C149 C150 0.1u LGE Internal Use Only - 7 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 28 VDD_3.3 R224 U202 N25Q128-A13BF840E SFLASH_CS R231 SFLASH_DATA_IN HOLD_/DQ3 SFLASH_CLK W_VPP/DQ2 SFLASH_DATA_OUT VDD_3.3 G_SLUG R238 EUSY0432601 C223 C224 0.1u LGE Internal Use Only - 8 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 29 4. TROUBLE SHOOTING 4. TROUBLE SHOOTING R141 X400 Q103 R140 Q102 Q102 L102 L102 U202 Q104 R152 R152 LGE Internal Use Only - 9 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 30 SFLASH DATA(TP7) SFLASH_DATA(TP7) If soldering is fine, replace U202 ld i i fi U202 TP7= Data pulse FINISH LGE Internal Use Only - 30 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 31: Power On Trouble - 3.75V Lte Power

    Passes DC/DC and 3.75V is supplied for LTE Module SI7121DN EBK61571901 B340A CN100 KJA-DC-0-0037 EAH61438301 EDSY0020101 C106 C107 C108 C109 PSD24C-LF 0.1u ZD100 R101 ENJW0002601 0.1u LGE Internal Use Only - 31 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 32 TP320 TP321 TP305 SIM_PWR TP322 SIM_DATA SIM_CLK SIM_RST/ TP304 TP307 TP315 TP308 TP317 TP314 TP318 TP306 ENZY0030701 24-6407-052-001-888 LGE Internal Use Only - 3 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 33 4. TROUBLE SHOOTING 4. TROUBLE SHOOTING Q101 R124 CN100 CN300 LGE Internal Use Only - 33 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 34 U1 Reassemble the LTE (4) Check the LTE module or replace module connection CN300 & LTE module FINISH LGE Internal Use Only - 34 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 35: Sim Card Trouble

    I_OVCC1 MODE2 I_OVL2 I_OVCC2 MODE3 I_OVL3 I_OVCC3 LT_USIM_DET/ LTE_USIM_DET/ I_OVL4 I_OVCC4 C351 C352 C353 C354 C355 100n 100n LGE Internal Use Only - 35 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 36 4. TROUBLE SHOOTING 4. TROUBLE SHOOTING R306 R308 S300 R350 U103 IC303 LGE Internal Use Only - 36 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 37 (When insert SIM card) Check the Soldering CN300 (4) Check voltage(TP4) If soldering is fine, replace LTE TP3= 3V module FINISH LGE Internal Use Only - 37 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 38 SIM_PWRDOWN STOP_ SIM_PWRSEL SIM_CLK MOD_VCC SIM_CLK 100n C600 SIM_RST SIM_RST G_SLUG SYS_PWR 100n C604 SIM_DATA 100n C605 SIM_PWR LGE Internal Use Only - 38 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 39 4. TROUBLE SHOOTING fig4.1 fig4.2 LGE Internal Use Only - 39 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 40 Clock si Resolder U600 gnal(fig.4.1)? Check TP4. Is it hi Resolder U600 gh level? Replace main PCB LGE Internal Use Only - 40 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 41: Power Led Indication Trouble

    4.5 Power LED Indication Trouble VDD_3.3 67-21-L9C-W4556W1X1B2-2T LD100 R104 EDLM0009901 C110 R114 Q100 PWR_LED UMT2222A EQBN0005301 C116 LD100 R114 R114 Q100 LGE Internal Use Only - 41 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 42 If soldering is fine, replace U200 TP2= 3.3V Check the Soldering LD100 & Q100 If soldering is fine, replace LD100 FINISH LGE Internal Use Only - 4 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 43: Ethernet Led Indication Trouble

    4. TROUBLE SHOOTING 4. TROUBLE SHOOTING 4.6 Ethernet LED Indication Trouble R347 VDD_3.3 LAN1_ACT_GPIO1 C335 C338 LD302 R347 LGE Internal Use Only - 43 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 44 TP2= Low TP2= Low (When LED turn On) Check the LD602 Soldering If soldering is fine, change LD602 FINISH LGE Internal Use Only - 44 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 45: Rgb Led Indication Trouble

    Q307 LQI_LED0 LQI_LED1 LQI_LED2 UMT2222A UMT2222A UMT2222A EQBN0005301 EQBN0005301 EQBN0005301 C346 C347 C348 LD304 R355 R353 Q305 Q306 LGE Internal Use Only - 45 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 46 (2) LQI_LED1 is high and If soldering is fine, replace Green LED turn on? Q306 or LD304 FINISH LGE Internal Use Only - 46 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 47: Usb Connection Trouble

    DG2722 LTE_USB1_DP CON_USB1_DM HSD1- LTE_USB1_DM CON_USB1_DP HSD1+ NP_USB1_DM VDD_3.3 HSD2- NP_USB1_DP R385 USB1_SELECT HSD2+ EUSY0386501 C358 R384 NP_USB1_SELECT LGE Internal Use Only - 47 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 48 4. TROUBLE SHOOTING 4. TROUBLE SHOOTING R384 R309 U300 R383 FL302 R380 R380 CN301 R321 Q300 LGE Internal Use Only - 48 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 49 Check the Soldering U300 & CN300 (4) Check the signal TP4 If soldering is fine, replace LTE module FINISH LGE Internal Use Only - 49 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 50 C515 U508 SYS_PWR 1V5_DCDC RT8016L-GQW 2.2u L505 R546 R543 VLS3012T-2R2M1R5 GND2 R545 150K GND1 FB_VOUT 1.5V DCDC C547 LGE Internal Use Only - 50 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 51 (4) Check 1.2V_RF voltage(TP4) If soldering is fine, change U502 TP4= 1.2V FM300 FM300 working well ! ll ! LGE Internal Use Only - 51 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 52: Ethernet Connection Trouble

    8.2p 8.2p 8.2p 8.2p 0.1u 0.1u 0.1u CN101 P1_RDP P1_RDN P1_TDP C137 R146 P1_TDN C138 R148 ENZY0030801 85507-5001 LGE Internal Use Only - 5 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 53 4. TROUBLE SHOOTING 4. TROUBLE SHOOTING TP3 TP4 R135 R133 R138 R137 U104 TP5 TP6 U603 R643 R643 CN101 LGE Internal Use Only - 53 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 54 Check the Soldering U104 & (2) Check TP5 & TP6 R133 & R135 Vpp = 1V Replace U202 FINISH LGE Internal Use Only - 54 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 55: Lte Rf Component (Primary)

    Power Amp Module(SKY77704-8) U101 Power Amp Module (SKY77704-8) X200 VCTCXO_19.2MHz(TG-5021CG) SW100, 101 RF Connector(Primary, Secondary) FL101 Duplexer U100 RX LNA(BGA751L7) LGE Internal Use Only - 55 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 56: Lte Vcxo Trouble

    AFC_OUT C201 R202 REF_CLK_OUT U200 19.2MHz C203 C204 NL17SZ04XV5T2G TP2 TP3 100n C205 TCXO_IN C201 R200 Figure 4.2 LGE Internal Use Only - 56 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 57 (2) Check the AFC Check the voltage(TP1) U201(L2000) VC >= 1.4V (3) Check the Change the frequency X201 19.2MHz(TP3) Finish LGE Internal Use Only - 57 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 58: Lte Tx Trouble

    49.9 C124 C125 C126 C127 C128 C129 C130 C131 C132 C133 680p 680p 330p 2.2u 2.2u U101 U102 LGE Internal Use Only - 58 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 59 (3) Check the Tx Change the U101(SKY77704-8) signal path (TP3) U201(L2000) TP7: 3.7V, TP6:High Change the U101 Finish LGE Internal Use Only - 59 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 60: Power On Trouble - Lte Booting Trouble

    2.2u 1V5_DCDC 1V3_BBPLL U504 RP109L131D R533 VOUT C537 C538 SYS_PWR 2V8_RF U503 RP104K281D-TR-F R526 VOUT RF_HKP_EN CE_NC C532 LGE Internal Use Only - 60 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 61 200K 100n C200 X200 TG-5025CG-19_2M R200 AFC_OUT C201 R202 REF_CLK_OUT U200 19.2MHz C203 C204 NL17SZ04XV5T2G 100n C205 TCXO_IN LGE Internal Use Only - 61 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 62 4. TROUBLE SHOOTING 4. TROUBLE SHOOTING U501 LGE Internal Use Only - 6 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 63 TP7= 12Mhz (8) Check REF_CLK Frequency(TP8) Check the U200 Soldering TP8= 19.2Mhz FM300 FM300 working well ! ll ! LGE Internal Use Only - 63 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 64: Memory Trouble Shooting

    SPI4_MOSI_LT I_OVL4 I_OVCC4 3V3_MEM C602 R611 U601 100n N25Q128-A13BF840E SPI4_CS_LT SPI4_MISO_LT HOLD_/DQ3 3V3_MEM SPI4_CLK_LT W_VPP/DQ2 R612 SPI4_MOSI_LT G_SLUG LGE Internal Use Only - 64 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 65 4. TROUBLE SHOOTING 4. TROUBLE SHOOTING U601 U603 U602 LGE Internal Use Only - 65 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 66 TP3, TP4= 3.3V Check the U601 Download Working? Working? If Download is fine, change U201 FM300 working well ! LGE Internal Use Only - 66 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 67: Download

    - Select Internet protocol(TCP/IP) - Select Property Button - Activate “Obtain an IP address automatically” - Connect FM300 and EasyBox 803 LAN1 with Ethernet cable - Connect PC and EasyBox 803 LAN 2 with Ethernet cable 59/118 LGE Internal Use Only - 67 - Copyright ©...
  • Page 68 Access to EasyBox 803’s web page (192.168.2.1) and login (root/123456) root 123456 Figure 5.1 EasyBox 803 Web page 60/118 LGE Internal Use Only - 68 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 69 After login, if you can see this web page, please select “User-defined Installation” and “Apply” Figure 5.2 Select User defined installation 61/118 LGE Internal Use Only - 69 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 70 5. DOWNLOAD 5. DOWNLOAD Select “Open mode” and “Apply”. Figure 5.3 Select Open Mode 62/118 LGE Internal Use Only - 70 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 71 EasyBox 803 will be rebooted. Please login again, ID and Password is “root” and “123456” Figure 5.4 EasyBox 803 Web Page 63/118 LGE Internal Use Only - 71 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 72 5. DOWNLOAD Select “Extra” tab, and “Firmware Upgrade” 1. FM300_version.bin 2. click “Apply” Figure 5.5 FM300 Firmware Upgrade 64/118 LGE Internal Use Only - 7 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 73: Block Diagram

    VCNTL DC Jack UART Interface (12V Adaptor) (12V Adaptor) (BB PLL) (BB PLL) DCDC_3. VDD_3.7V FM300 Sub Board LGE Internal Use Only - 73 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 74: Circuit Diagram

    VCNTL 2SB1424 C146 C148 R146 EUSY0353701 EQBP0008701 VDD_2.5 P1_TDN C138 R148 R154 VSENSE2P5 C149 C150 0.1u ENZY0030801 85507-5001 LGE Internal Use Only - 74 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 75 SDRAM_DATA_11 SD_DDR_DATA_11 R269 R270 VRXA1_1 R272 R271 SDRAM_DATA_12 SD_DDR_DATA_12 R273 SDRAM_DATA_13 SD_DDR_DATA_13 R274 SDRAM_DATA_14 SD_DDR_DATA_14 R275 SDRAM_DATA_15 SD_DDR_DATA_15 LGE Internal Use Only - 75 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 76 Q305 R361 Q306 R362 Q307 LQI_LED0 LQI_LED1 LQI_LED2 VDD_3.3 UMT2222A UMT2222A UMT2222A EQBN0005301 EQBN0005301 EQBN0005301 C346 C347 C348 LGE Internal Use Only - 76 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 77 20MHz CRYSTAL R406 XTAL_IN X400 CXC3X200000GHVRG00 R407 XTAL_OUT GND2 HOT2 HOT1 GND1 20MHz C422 C423 EXXY0027801 XTAL_GND FB401 FB400 LGE Internal Use Only - 77 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 78 EUSY0386501 SW_LTE_UART_TX C564 MCGY0004201 MCGY0004201 MCGY0004201 MCGY0004201 MCGY0004201 MCGY0004201 MCGY0004201 MCGY0004201 MCGY0004201 MCGY0004201 SW_LTE_UART_RX ENRY0011801 CN503,CN504,CN508,CN513,CN545,CN546,CN548 are DNI. LGE Internal Use Only - 78 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 79 RRFD1_INP R128 R129 3.3n R124 C134 8.2n CPL_OUT RFIN C136 C140 R126 R127 100n 100p SC100 SC101 SC102 LGE Internal Use Only - 79 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 80 REF_CLK_IN TCXO_IN C222 100n RRFM_VCC REFCLK_OUT_PAD C223 100n RBBD_LDO_O BG_REF_EXT C224 100n RBBD_VCC 100n C225 RRFD_VCC C226 C227 LGE Internal Use Only - 80 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 81 LLA_N/ECS1_N AFE_HKADC_IN0 BB_TEMP AF24 EPI_SYNC AF23 EPI_MODE RTCK JTAG_RTCK AA23 AJ10 H_INT_N CC5_VGATE 1V2_CORE AJ11 CC5_FSOURCE TXPLL_PWR_EN RXPLL_PWR_EN LGE Internal Use Only - 81 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 82 AF11 C458 100n VCC_33 VCCQ1_GPIO0_1 AF12 C459 VCC_34 VCCQ1_GPIO0_2 AF13 C460 100n VCC_35 VCCQ1_GPIO1_1 AF14 VCC_36 VCCQ1_GPIO1_2 1V8_MEM LGE Internal Use Only - 82 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 83 CONFIG LILO2 GND1 FB_VOUT C547 VIN_LILO1 VIN_LILO2 C522 C523 C524 C525 C526 C527 C528 C529 C530 2.2u 2.2u LGE Internal Use Only - 83 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 84 SIM_RST SIM_RST SPI4_CLK I_OVL3 I_OVCC3 SPI4_CLK_LT G_SLUG SYS_PWR SPI4_MOSI SPI4_MOSI_LT I_OVL4 I_OVCC4 100n C604 SIM_DATA 100n C605 SIM_PWR LGE Internal Use Only - 84 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 85: Bga Pin Map

    8. BGA PIN MAP 8. BGA PIN MAP 7. BGA PIN MAP LGE Internal Use Only - 85 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 86: Pcb Layout

    CN505 CN525 Q102, Q103 FET - No Power (Ethernet 1.2V) : Added DNI for revision 1.0 ECO FM300_MAIN_SPFY0246301_1.0_TOP LGE Internal Use Only - 86 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 87: Lge Internal Use Only

    - No Service (Ethernet) CN101 RJ-45 - No Service (Ethernet) : Added DNI for revision 1.0 ECO FM300_MAIN_SPFY0246301_1.0_BOT LGE Internal Use Only - 87 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 88: Lge Internal Use Only

    U504 R313 R322 R325 C509 R323 R324 R312 R311 C608 C607 X301 X300 R310 R347 R349 CN301 FM300_SUB_SPJY0090001_1.0_TOP LGE Internal Use Only - 88 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 89: Lge Internal Use Only

    9. PCB LAYOUT FM300_SUB_SPJY0090001_1.0_BOT LGE Internal Use Only - 89 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 90: Calibration

    300MHz Table 10.2.1 Calibration Equipment List. GSM Test Set(Agilent 8960 or CMW500) FM300 Figure 10.1.1 Equipment Setup LGE Internal Use Only - 90 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 91 10.1.2.1 Execute “ Hecaton.exe” (C driver -> LGE folder -> Tachyon folder -> Utilities) and Loss setting Select this button Select this file, if exist or make the loss information file 91/118 LGE Internal Use Only - 91 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 92 11. AUTO CALIBRATION 10.1.2.2 Execute “ Tachyon.exe” (C driver -> LGE folder -> Tachyon folder) and Login 92/118 LGE Internal Use Only - 9 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 93 10. CALIBRATION 11. AUTO CALIBRATION 10.1.2.3 Click “tachyon setup icon” and setup serial port(LGE FM300 USB Modem Port in the Modem tab). Modem, 93/118 LGE Internal Use Only - 93 - Copyright © 011 LG Electronics. Inc. All right reserved.
  • Page 94 10. CALIBRATION 11. AUTO CALIBRATION 10.1.2.4 Click Model selection icon and select FM300 94/118 LGE Internal Use Only - 94 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 95 10.1.2.5 Click Start icon for RF calibration and auto test Calibrating 10.1.2.6 RF calibration and auto test finishes. SUCCESS 95/118 LGE Internal Use Only - 95 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 96 The RX LNA Calibration is to control the RX Gain and LNA step with accuracy in the rx0/rx1 path in portion to the linear growth of the RX power. 96/118 LGE Internal Use Only - 96 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 97: Stand Alone Test

    (Mid Gain) at%pLLARCSend=19,2 (Low Gain) 3. Gain DAC test - AT command at%pLLARCSend=23 get LNA gain DAC. LGE Internal Use Only - 97 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 98 Select band to test AT command window port setting select WCDMA port Figure 11 1 Mobile analyzer Figure 11.1 Mobile analyzer LGE Internal Use Only - 98 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 99: Exploded View & Replacement Part List

    12. EXPLODED VIEW & REPLACEMENT PART LIST 12. EXPLODED VIEW & REPLACEMENT PART LIST 12.1 EXPLODED VIEW LGE Internal Use Only - 99 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 100 12. EXPLODED VIEW & REPLACEMENT PART LIST EXPLODED VIEW (ASS’Y) LGE Internal Use Only - 100 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 101: Replacement Parts

    MOLD PC LUPOY HP-5004 FM300.AVD2WA MCR000003 Decor MCR64347102 BL:Blue Deco, Antenna_L MOLD PC LUPOY HP-5004 FM300.AVD2WA MCR000001 Decor MCR64347201 CW:COOL WHITE Deco_frame LGE Internal Use Only - 101 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 102 PRESS STS 0.2 FM300.AVD2WA ZZ:Without Color MBK070300 Can, Shield MBK62853301 SHIELD_CAN_F MCQ000000 Damper MCQ66474401 COMPLEX FM300.AVD2WA ZZ:Without Color - LGE Internal Use Only - 10 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 103 PRESS STS 0.2 FM300.AVD2WA ZZ:Without Color - SPJY0090001 FM300.AVD2WA 1.0 FR-4 SBL 10 1 EAX010100 PCB, Sub SPJY0090001 SUB LG Innotek.com LGE Internal Use Only - 103 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 104 ENRY0011801 R/TP - HANKOOK MOLEX SCGC1B0100 8, ETC, mm, ALPS ELECTRIC S300 Card Socket ENSY0023001 KOREA CO., LTD. LGE Internal Use Only - 104 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 105 MCH185CN103KK 10nF 10% 50V X7R -55TO+125C Capacitor, Ceramic, C108 ECCH0000259 1608 R/TP - ROHM Semiconductor KOREA Chip CORPORATION LGE Internal Use Only - 105 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 106 C1005C0G1H330JT000F 33pF 5% 50V NP0 - C341, Capacitor, Ceramic, ECZH0000830 55TO+125C 1005 R/TP - TDK KOREA C342 Chip COOPERATION LGE Internal Use Only - 106 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 107 GRM188R71E104K 100nF 10% 25V X7R - C107, Capacitor, Ceramic, ECZH0003504 55TO+125C 1608 R/TP - MURATA Chip MANUFACTURING CO., LTD. LGE Internal Use Only - 107 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 108 ENRY0011801 R/TP - HANKOOK MOLEX SCGC1B0100 8, ETC, mm, ALPS ELECTRIC S300 Card Socket ENSY0023001 KOREA CO., LTD. LGE Internal Use Only - 108 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 109 Resistor, Chip ERHZ0000401 R138, ROHM. R218, R221 MCR01MZP5J102 1KOHM 5% 1/16W 1005 R/TP - R321 Resistor, Chip ERHZ0000404 ROHM. LGE Internal Use Only - 109 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 110 ROHM. SC424 3 to 28V adj 0W QFN R/TP 28P - SEMTECH IC, DC, DC Converter EUSY0369702 CORPORATION LGE Internal Use Only - 110 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 111 AX3100 ATL SV_SHIPBACK, MAIN, A, Wire Pad, Open SAFO0000501 R249, 0OHM_1005_DNI R251, R260, R261, R262, R264, R314, R341, R342, R351, R381, R382 LGE Internal Use Only - 111 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 112 SIA426DJ N-CHANNEL MOSFET 20V +-12 4.5A Q103 EBK61591901 0.0263OHM 3.5W SC70 R/TP 6P VISHAY INTERTECHNOLOGY ASIA PTE LTD LGE Internal Use Only - 11 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 113 ESD7L5.0DT5G ESD7L5.0DT5G, SOT-723 , 5 V, 150 D301 Diode, TVS EDTY0010301 mW, R/TP , SCG HONG KONG SAR LTD. LGE Internal Use Only - 113 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 114 Resistor, Chip ERHZ0000405 R279, ROHM. R281, R282 MCR01MZP5J104 100KOHM 5% 1/16W 1005 R/TP - R149 Resistor, Chip ERHZ0000406 ROHM. LGE Internal Use Only - 114 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 115 BROADCOM ASIA DISTRIBUTION PTE LTD CXC3X200000GHVRG00 20MHZ 10PPM 18F ; SMD X400 Crystal EXXY0027801 R/TP PARTRON COMPANY LIMITED LGE Internal Use Only - 115 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 116 3P - KSD CO., LTD EAG59068701 4P 2.50/2.00/2.50/2.03MM STRAIGHT CN301 Connector, I/O ENRY0012001 RECEPTACLE DIP TR - KSD CO., LTD LGE Internal Use Only - 116 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 117 C1005X7R1H331KT000F 0.33nF 10% 50V X7R - Capacitor, Ceramic, C129 ECCH0000137 55TO+125C 1005 R/TP - TDK KOREA Chip COOPERATION LGE Internal Use Only - 117 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 118 C1005C0G1H6R8CT000F 6.8pF 0.5PF 50V NP0 - Capacitor, Ceramic, C115 ECCH0001001 55TO+125C 1005 R/TP - TDK KOREA Chip COOPERATION LGE Internal Use Only - 118 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 119 GRM188R61A225K 2.2uF 10% 10V X5R -55TO+85C ECCH0005603 C507, Chip 1608 R/TP - MURATA MANUFACTURING CO., LTD. C522, C523 LGE Internal Use Only - 119 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 120 C1005X7R1H681KT000F 680pF 10% 50V X7R - C124, Capacitor, Ceramic, ECZH0001122 55TO+125C 1005 R/TP - TDK KOREA C128 Chip COOPERATION LGE Internal Use Only - 10 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 121 30TO+85C 1005 R/TP - ROHM Semiconductor Chip C460, KOREA CORPORATION C513, C516, C519, C520, C545, C548, C600, C601, C602, C603, C604, C605, C613 LGE Internal Use Only - 11 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 122 L502, Inductor, Wire ELCP0009405 M , 3x3x1.2 , R/TP , coil power inductor TDK L505 Wound, chip CORPORATION LGE Internal Use Only - 1 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 123 SAMSUNG ELECTRO-MECHANICS CO., LTD. RC1005J106CS 10MOHM 5% 1/16W 1005 R/TP - R323 Resistor, Chip ERHY0039601 SAMSUNG ELECTRO-MECHANICS CO., LTD. LGE Internal Use Only - 13 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 124 Resistor, Chip ERHZ0000504 R127 ROHM. R318, MCR01MZP5J152 1.5KOHM 5% 1/16W 1005 R/TP - Resistor, Chip ERHZ0000529 R319 ROHM. LGE Internal Use Only - 14 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 125 ETC , 128-Mbit (16 Mbitx8) serial flash memory, 2.5V , U601 EUSY0432601 Memory ; , IC, Serial Flash Memory Numonyx Asia Pacific Pte Ltd. LGE Internal Use Only - 15 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 126 NCP15WD683J03RC 68KOHM 5% 0V 0A 4.15KK PT100, PT200 Thermistor, NTC SETY0007001 SMD P/TP 1005size MURATA MANUFACTURING CO., LTD. LGE Internal Use Only - 16 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 127 HHM1726T4 6, SMD, 698M~960M, IL 0.8, 50-100, FL103, Filter, Balun STMY0025501 1.6*0.8*0.7, 262MHz, 0.8, SMD, R/TP, TDK FL106 CORPORATION LGE Internal Use Only - 17 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 128 MSTA-D01ET 90-240V 12V 1.5A 50-60Hz CE, CB EAY060000 Adapters EAY62311001 WALL 2P DC PIN PLUG - TENPAO INTERNATIONAL ., LTD LGE Internal Use Only - 18 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

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