hit counter code
LG FM300 Service Manual
  1. Manuals
  2. Brands
  3. LG Manuals
  4. Wireless Router
  5. FM300
  6. Service manual
LG FM300 Service Manual

LG FM300 Service Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

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

Advertisement

Table of Contents
loading

Related Manuals for LG FM300

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...

Table of Contents