LG FB163U Service Manual
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LG FB163U Service Manual

Mini home theater
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Internal Use Only
Website http://biz.lgservice.com
MINI HOME THEATER
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE UNIT, READ THE "SAFETY PRECAUTIONS" IN THIS MANUAL.
MODEL : FB163U(FBS163V)

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  • Page 1 Internal Use Only Website http://biz.lgservice.com MINI HOME THEATER SERVICE MANUAL CAUTION BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS” IN THIS MANUAL. MODEL : FB163U(FBS163V)

  • Page 2: Table Of Contents

    ....... 4-1 Copyright © 2008 LG Electronics. Inc. All right reserved.

  • Page 3: Servicing Precautions

    Take care not to use too much of this alcohol on the swab, and do not allow the alcohol to get inside the pick-up. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 4 NOTE: 1. To operate the RESET jump wire, pull the volume rotary knob and release it. 2. If you wish to operate the RESET jump wire, it is necessary to unplug the power cord. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only...

  • Page 5: Esd Precautions

    THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN SERVICE LITERATURE. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 6: The Steps For Change The Option Code

    Press pause key once Remote control ‘2’ + Front ‘STOP’ push same timing during 5s Auto power off Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 7: Location Of Users Controls

    • USB connector sound through headphones Connect a remote USB compatible (not supplied). player here. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 8: Remote Control

    PRESET(-/+)( TUN.(-/+)( PLAY ( STOP ( PAUSE/STEP ( ) REC ( PROG./MEMO. VOLUME (+/-) REPEAT CLEAR S-TITLE VOCAL FADER RDS(optional) PTY(optional) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 9: Specification

    132 x 286 x 253 mm (W x H x D) Net Weight 4.3kg Designs and specifications are subject to change without pior notice. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 10: Cabinet And Main Frame Section

    TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN SERVICE LITERATURE. OPTIONAL PART CABLE3 9701 SMPS CABLE1 CABLE2 FRONT CN101 MAIN Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 11: Deck Mechanism Exploded View

    • DECK MECHANISM EXPLODED VIEW 035A LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 12: Speaker Exploded View

    SPEAKER EXPLODED VIEW • FRONT SPEAKER A80L A80R A80A Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 13: Packing Accessory View

    • PACKING ACCESSORY VIEW Battery Antenna Loop Plug Ass'y, 1Way(BLACK) Antenna Instruction Ass'y Remote controller Packing LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 14: Ain1B

    AIN2A Stereo Analog Input 2 (Input) - The full-scale level is specified in the ADC Analog Characteristics AIN2B specification table. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 15: Ain4B/Micin2

    Digital Power (Input) - Positive power for the internal digital section. Interrupt (Output) - Indicates an interrupt condition has occurred. OVFL Overflow (Output) - Indicates an ADC overflow condition is present. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 16 10 F 0.1 F 2.2nF 2.2nF 47 F 0.1 F AFILTA AFILTB AGND * Capacitors must be C0G or equivalent DGND Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 17 Analog column mux input. I, M P0[5] Analog column mux input. I, M P0[3] Analog column mux input, integrating input. Power Ground connection. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 18 A/V Receiver Phoenix II EEPROM VFD Panel VFD Driver ROM/Flash IR Remote Flash Memory Cards / HDD 4. IP9010 • BIOCK DIAGRAM Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 19 Signal supply voltage Adjustable regulator feed back REGVCC Regulator supply voltage DO3+ CH3 driver output(+) Adjustable regulator output DO3- CH3 driver output(-) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 20 5. LC87F5NC8AVU-QIP • PIN CONFIGURATION Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 21 5. LC87F5NC8AVU-QIP • SYSTEM BIOCK DIAGRAM LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 22 5. LC87F5NC8AVU-QIP • PIN DESCRIPTION Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 23 LGE Internal Use Only 3-10 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 24 300 (SOP-8) 800 (DIP-8) 250(TSSOP-8) ° C Operating Temperature Range Topr -40 to+85 °C Storage Temperature Range Tstg -40 to +125 Copyright © 2008 LG Electronics. Inc. All right reserved. 3-11 LGE Internal Use Only Only for training and service purposes...
  • Page 25 7. 0IRH330800A • SYSTEM BIOCK DIAGRAM •TEST CIRCUIT LGE Internal Use Only 3-12 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 26 SCK/SCL Reset & Power Down Internal Controls Interface SI/I2C_AD0 PWM_SWL_P/M C, SPI) /CS/I2C_AD2 EPD_ENA EXT_MUTE Crystal Power Supply Oscillator OVERLOAD Copyright © 2008 LG Electronics. Inc. All right reserved. 3-13 LGE Internal Use Only Only for training and service purposes...
  • Page 27 DVDD DVSS DVSS DVDD DMIX_MCLK MIC_SDIN IO_VDD MIC_LRCK IO_VSS MIC_BCK /RESET MIC_MCLK TEST_MODE1 IO_VDD TEST_MODE2 IO_VSS SCAN_ENA EXT_MUTE TEST_MODE3 SSDIN3 LGE Internal Use Only 3-14 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 28 Dimming Cir cu it Gr id Drive r GR1 0 GR11 GR1 2 GR1 3 GR1 4 GR1 5 GR1 6 VE E Copyright © 2008 LG Electronics. Inc. All right reserved. 3-15 LGE Internal Use Only Only for training and service purposes...
  • Page 29 SG19 SG 3KS3 SG18 SG4/KS4 16 17 18 19 20 2 1 22 2 3 24 2 5 2 6 LGE Internal Use Only 3-16 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 30 SG17 to SG24 High-Voltage Segment Output Pins 26 to 33 GR1 to GR16 High-Voltage Grid Output Pins 34 to 49 Pull-Down Level Copyright © 2008 LG Electronics. Inc. All right reserved. 3-17 LGE Internal Use Only Only for training and service purposes...
  • Page 31 Hardwire Supply VREG OC Limit System Decoupling Power Supply Power Decoupling Supply GVDD (12 V)/VDD (12 V) 12 V B0047-02 LGE Internal Use Only 3-18 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 32 Drive BTL/PBTLConfiguration Pulldown Resistor GND_B GVDD_A BST_A PVDD_A Gate PWM_A OUT_A Ctrl. Timing Rcv. Drive BTL/PBTLConfiguration Pulldown Resistor GND_A B0034-03 Copyright © 2008 LG Electronics. Inc. All right reserved. 3-19 LGE Internal Use Only Only for training and service purposes...
  • Page 33 LGE Internal Use Only 3-20 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 34 5V. KIA7042. KIA7042 Check IC100 Check if output voltage LC87F5NC8A 4 PIN of IC101 KIA7042 is power. 4.3V. Copyright © 2008 LG Electronics. Inc. All right reserved. 3-21 LGE Internal Use Only Only for training and service purposes...
  • Page 35 14,55,89 PIN 5V Check the working condition Check the X100:32.768kHz Replace the related parts. related part. X101:9.8304MHz Replace the related parts. LGE Internal Use Only 3-22 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 36 Refer to micom 81 PIN DATA 82 PIN CLK Check MICOM power 5V troubleshooting. Check the related part. Replace the related parts. Copyright © 2008 LG Electronics. Inc. All right reserved. 3-23 LGE Internal Use Only Only for training and service purposes...
  • Page 37 26PIN¡2PIN DO 28PIN¡1PIN CLK Check 26 PIN¡DO ¡DATA input. Replace the related part. Check the related part FLT light on? LGE Internal Use Only 3-24 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 38 56,65,72,87,94)Check X701 2PIN 3.3V Check the Check if X701 Replace the related part. related part of 12.288MHz is working. X701. Copyright © 2008 LG Electronics. Inc. All right reserved. 3-25 LGE Internal Use Only Only for training and service purposes...
  • Page 39 Check IC702 Check resistance PS9830 DATA input. output of each LINE. Check PWM MODULATOR output Check IC702 PS9830 part. FL:75(+)74(-) R:71(+)70(-) LGE Internal Use Only 3-26 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 40 Check PWM MODULATOR input 4,6,14,16 PIN. Check POWER IC 700 34, 29,27,20 PIN output. Replace the related parts. Check output LINE COIL. Copyright © 2008 LG Electronics. Inc. All right reserved. 3-27 LGE Internal Use Only Only for training and service purposes...
  • Page 41 Check TUNER MODUEL module(TU100)is working. power(Check 4PIN 9V). Check IC201(CS5345) 26,27PIN input waveform. Check IC201(CS5345) Replace the related parts 14PIN output waveform. LGE Internal Use Only 3-28 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 42 If DC V is 6.1V. Check the DC V of C950,C951 Check short of P9701 line. If DC V is in 29V. Copyright © 2008 LG Electronics. Inc. All right reserved. 3-29 LGE Internal Use Only Only for training and service purposes...
  • Page 43 Check the JK3C1 13pin and 30pin line. Check the JK3C1 18pin, 19pin. OSD IPOD Check theJK3C1 18pin and 19pin line LGE Internal Use Only 3-30 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 44 Does No DISC or Check the voltage Time are appeared at of each pin on PN702. FLD? Check DVD MD Module. Copyright © 2008 LG Electronics. Inc. All right reserved. 3-31 LGE Internal Use Only Only for training and service purposes...
  • Page 45 Load+ & load- signals Pin on IC401. on PN4402 are OK? Check the cable connection between DVD PCB and MD (MECHA). LGE Internal Use Only 3-32 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 46 ES8390 and motor driver IC. to motor driver? Check the motor driver (IC401). Proper F+ & F-outputs? Check cable connection with pick-up head. Copyright © 2008 LG Electronics. Inc. All right reserved. 3-33 LGE Internal Use Only Only for training and service purposes...
  • Page 47 SLOT. Check the SPINDLE control of SPIN+&SPIN- output motor driver ES8390. properly? Check the cable connection between PN4401 and MD. LGE Internal Use Only 3-34 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 48 T+ & T- output on motor driver (IC401). properly? Check cable connection on pick-up head. Check RF signal waveform. Disc play? Copyright © 2008 LG Electronics. Inc. All right reserved. 3-35 LGE Internal Use Only Only for training and service purposes...
  • Page 49 (Q501), Output of Video buffer TEST END ES8390 is OK? IC (IC507) and ES8390 video signal data. LGE Internal Use Only 3-36 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 50 Check the USB JACK POWER supply. Reading OK check. (Check PN205) Check the USB DATA LINE. (PN205) Check the ES8390. Check DATA LINE PIN 91(USB-No)90(USB-Po) Copyright © 2008 LG Electronics. Inc. All right reserved. 3-37 LGE Internal Use Only Only for training and service purposes...
  • Page 51 LGE Internal Use Only 3-38 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 52: Waveforms Of Major Check Point

    1. WHEN POWER ON, RESET & DATA ETC WAVEFORM 1.RESET(DVD) 2.RX 3.TX 4.LCS3#(FLASH) Playing at USB function 1.HRST# 2.5V 3.D- 4.D+ Copyright © 2008 LG Electronics. Inc. All right reserved. 3-39 LGE Internal Use Only Only for training and service purposes...
  • Page 53 2.OPEN 3.CLOSE 3. STARTING ACTION WAVEFORM IN MD DEVICE (SLED HOME) 1.SLO (from MPEG) 2.SLED- 3.SLED+ (At Power on ) LGE Internal Use Only 3-40 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 54 4. FOCUS WAVEFORM 1.FDO 2.F+ 3.F- (INSERT CD ) (INSERT DVD ) 1.FDO 2.F+ 3.F- Copyright © 2008 LG Electronics. Inc. All right reserved. 3-41 LGE Internal Use Only Only for training and service purposes...
  • Page 55 5. AT POWER ON ,SPINDLE SIGNAL AT MD DECK 1.Spind 2.Spin+ 3.Spin- 6. AT FIRST ACTION,FOCUS SIGNAL A,B,C,D LGE Internal Use Only 3-42 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 56 7. TRACKING SIGNAL 1.Tro 2.Tr- 3.Tr+ 8. RF WAVEFORM Copyright © 2008 LG Electronics. Inc. All right reserved. 3-43 LGE Internal Use Only Only for training and service purposes...
  • Page 57 9. DISK TYPE JUGEMENT WAVEFORM (DVD) 1.F+ 2.FDO 3.SVRRF (CD) LGE Internal Use Only 3-44 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 58: Wiring Diagram

    WIRING DIAGRAM 3-45 3-46 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 59: Block Diagrams

    MCL K ,BC K,LRC K, ADT AT IPOD IPOD_VIDEO, IPOD_L/R, AUX_L/R, TUNE TUNER PORT_L/R, BLUE TOOTH SCART_L/R, MODULE BT_L/R, TUNER_L/R CS5345 ADC_CLK, DAT, SMPS TUNER_DI,DO,CE,,MUTE,RDS_CLK,DAT 3-47 3-48 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 60: Schematic Diagrams

    NOTE) Parts that are shaded are critical NOTE) With respect to risk of fire or NOTE) electricial shock. 2008.01.09 3-49 3-50 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 61 2. MICOM SCHEMATIC DIAGRAM 2008.01.09 3-51 3-52 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 62 3. AMP SCHEMATIC DIAGRAM 2008.01.09 3-53 3-54 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 63 4. I/O SCHEMATIC DIAGRAM 2008.01.09 3-55 3-56 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 64 5. MPEG SCHEMATIC DIAGRAM 2008.01.09 3-57 3-58 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 65 6. SERVO SCHEMATIC DIAGRAM 2008.01.09 3-59 3-60 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 66 7. IPOD SCHEMATIC DIAGRAM 2008.01.09 3-61 3-62 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 67 8. SCART SCHEMATIC DIAGRAM 2008.01.09 3-63 3-64 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 68 9. FRONT SCHEMATIC DIAGRAM 2008.01.09 3-65 3-66 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 69 10. MIC SCHEMATIC DIAGRAM 2008.01.09 3-67 3-68 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 70 11. TOUCH SCHEMATIC DIAGRAM 2008.01.09 3-69 3-70 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 71: Printed Circuit Board Diagrams

    1. SMPS P.C. BOARD DIAGRAM NOTE: Warning Parts that are shaded are critical With respect to risk of fire or electrical shock. 3-71 3-72 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 72 2-1. MAIN P.C. BOARD DIAGRAM ( TOP VIEW ) 3-73 3-74 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 73 2-2. MAIN P.C. BOARD DIAGRAM ( BOTTOM VIEW ) 3-75 3-76 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 74 3-1. IPOD &KEY P.C. BOARD DIAGRAM ( TOP VIEW ) 3-2. IPOD &KEY P.C. BOARD DIAGRAM ( BOTTOM VIEW ) 3-77 3-78 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 75 4-1. I/O P.C. BOARD DIAGRAM ( TOP VIEW ) 5. MIC P.C. BOARD DIAGRAM 4-2. I/O P.C. BOARD DIAGRAM ( BOTTOM VIEW ) 3-79 3-80 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 76 6. FRONT P.C. BOARD DIAGRAM 3-81 3-82 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 77 8-2. TOUCH SLIDE P.C. BOARD DIAGRAM ( BOTTOM VIEW ) 7-2. TOUCH KEY P.C. BOARD DIAGRAM ( BOTTOM VIEW ) 3-83 3-84 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

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