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LG FA163 Service Manual
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LG FA163 Service Manual

LG FA163 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 : FA163, LFA840(FAS163F)
P/NO : AFN52679874
MARCH, 2008

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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 : FA163, LFA840(FAS163F) P/NO : AFN52679874 MARCH, 2008...
  • Page 2 ....... 4-1 Copyright © 2008 LG Electronics. Inc. All right reserved.

  • Page 3: Section 1. General

    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: Notes Regarding Compact Disc Player Repairs

    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: Location Of Users Controls

    Connect a remote USB compatible • PORTABLE IN player here. The player can be used to play the music from many types of portable player. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 7: Remote Control

    Title, Artist, Album or Time information. • Starts or pauses recording • Search radio stations by radio type - PTIONAL LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 8: Specifications

    129 x 297 x 250 mm (W x H x D) Net Weight 3.6kg Designs and specifications are subject to change without pior notice. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 9 1. INSERT USB DEVICE AT USB FUNCTION READ FIRMWARE WRITE 00 .. 100 UPDATED POWER OFF AUTOMATICALLY 2. WHEN COMPLETED, REMOVE USB DEVICE. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 10 NO USB 1. INSERT USB DEVICE AT USB FUNCTION READ FIRMWARE FINISH UPDATED POWER OFF MANUALLY 2. WHEN COMPLETED, REMOVE USB DEVICE. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 11 LGE Internal Use Only 1-10 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 12: Section 2. Exploded Views

    TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN SERVICE OPTIONAL PART LITERATURE. 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 13: 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 14: Speaker Exploded View

    SPEAKER EXPLODED VIEW • FRONT SPEAKER(FAS163F) A80L A80R A80A Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 15: 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 16: Section 3. Audio Electrical Part

    SECTION 3. AUDIO ELECTRICAL PART INTERNAL BLOCK DIAGRAM OF ICs 1. BU9543KV_MOTOR IC • PIN CONFIGURATION Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 17: Pin Configuration

    AIN2A Stereo Analog Input 2 (Input) - The full-scale level is specified in the ADC Analog Characteristics AIN2B specification table. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 18 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. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 19: Typical Connection Diagram

    10 F 0.1 F 2.2nF 2.2nF 47 F 0.1 F AFILTA AFILTB AGND * Capacitors must be C0G or equivalent DGND LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 20 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. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 21 4. EM636165_SDRAM • BIOCK DIAGRAM 5. IP9010 • BIOCK DIAGRAM LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 22: Pin Connections

    Signal supply voltage Adjustable regulator feed back REGVCC Regulator supply voltage DO3+ CH3 driver output(+) Adjustable regulator output DO3- CH3 driver output(-) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 23 6. LC87F5NC8AVU-QIP • PIN CONFIGURATION LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 24 5. LC87F5NC8AVU-QIP • SYSTEM BIOCK DIAGRAM Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 25 5. LC87F5NC8AVU-QIP • PIN DESCRIPTION LGE Internal Use Only 3-10 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 26 Copyright © 2008 LG Electronics. Inc. All right reserved. 3-11 LGE Internal Use Only Only for training and service purposes...

  • Page 27: Test Circuit

    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 LGE Internal Use Only 3-12 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 28 SCK/SCL Reset & Power Down Interface Internal Controls 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 29 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 30 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 31 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 32 26 to 33 GR1 to GR16 High-Voltage Grid Output Pins 34 to 49 Pull-Down Level 11. S-24CS16A01_EEPROM IC • BIOCK DIAGRAM Copyright © 2008 LG Electronics. Inc. All right reserved. 3-17 LGE Internal Use Only Only for training and service purposes...

  • Page 33: System Block Diagram

    • S-24CS16A01_EEPROM IC • SYSTEM BLOCK DIAGRAM LGE Internal Use Only 3-18 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 34: Functional Block Diagram

    12. S-29AL008D_FLASHIC • FUNCTIONAL BLOCK DIAGRAM Copyright © 2008 LG Electronics. Inc. All right reserved. 3-19 LGE Internal Use Only Only for training and service purposes...

  • Page 35: Typical System Block Diagram

    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 3-20 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 36 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. 3-21 LGE Internal Use Only Only for training and service purposes...
  • Page 37 14. 0IRH330800A • SYSTEM BIOCK DIAGRAM •TEST CIRCUIT 6. MC4580 • TEST CIRCUIT SWITCH POSITION LGE Internal Use Only 3-22 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 38 If DC V is 6.1V. Check the DC V of C950,C951 Check short of P9701 line. If DC V is in 31.68V. Copyright © 2008 LG Electronics. Inc. All right reserved. 3-23 LGE Internal Use Only Only for training and service purposes...

  • Page 39: Vkk Check

    End voltage of IC101 (KIA7042) IC101 is over 5V (KIA7042) (KIA7042) Check voltage of Check if IC101 of output IC100(LC87Fxxx)PIN4 voltage is over4.3V LGE Internal Use Only 3-24 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 40 6. IC103(S24CS16A01) PART CHECK CHECK IC100 PIN81,82 Refer to micom PIN81:DATA Check MICOM troubleshooting. PIN82:CLK Voltage 5V. Check MICOM. Replace MICOM. Copyright © 2008 LG Electronics. Inc. All right reserved. 3-25 LGE Internal Use Only Only for training and service purposes...
  • Page 41 DATA INPUT. 26pin 2pin data 28pin 1pin clk 26PIN DATA OUT Check DATA INPUT. Replace IC100. Check IC100. FLD light on? LGE Internal Use Only 3-26 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 42: Pwm Modulation Part Check

    DATA INPUT PIN23,24,25,26 Resistor output INPUT PWM WAVE Check. Check PWM Modulator output Check FL:PIN75(+),74(-) Replace IC702. IC702(PS9830) FR:PIN71(+),70(-) OTHER OUTPUT Check Copyright © 2008 LG Electronics. Inc. All right reserved. 3-27 LGE Internal Use Only Only for training and service purposes...

  • Page 43: Power Amp Part Check

    IC700 PIN1,22,23,44:+12V INPUT Check PWM Modulator input each PIN6,8,16,18. POWER IC700 PIN28,31,36,39 output. Check output Replace the coil. line coil. LGE Internal Use Only 3-28 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 44: Tuner Function Check

    11. PORTABLE FUNCTION PART CHECK PORTABLE IN CHECK Check PN2301 Connection1. Check IC201 (CS5345)_PIN23,24 INPUT Waveform. Refer to Function check. Copyright © 2008 LG Electronics. Inc. All right reserved. 3-29 LGE Internal Use Only Only for training and service purposes...
  • Page 45 Check or Replace the D102 IS the D959 normal? Replace the D959 Is there Replace the IC103 about 2.5V at the IC103 Pin1? LGE Internal Use Only 3-30 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 46 Replace the D943 Is the D943 Normal? Replace the D941 Is the D941 Normal? Power Line of Main PCB is short. opyright © 2008 LG Electronics. Inc. All right reserved. 3-31 LGE Internal Use Only Only for training and service purposes...
  • Page 47 Check or Replace the IC955 the Q942 NO VF+ Is the ZD950 Replace the ZD950 Normal? Replace the R993 or Q950, Q943 LGE Internal Use Only 3-32 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 48 (X802) O344MHz) at Pin 31 of IC807? Check IC801 Replace IC801 input/ output and control line. Refer to Function check Copyright © 2008 LG Electronics. Inc. All right reserved. 3-33 LGE Internal Use Only Only for training and service purposes...

  • Page 49: Usb Function

    Replace IC801 Display “NO FILE” (PIN 116, 117) CHECK USB AUDIO FILE IN USB DEVICE (MP3, WMA FILE IS PLAYABLE) LGE Internal Use Only 3-34 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 50: Waveforms Of Major Check Point

    RFIC- Pin 60( RF) 61( FE), 62( TE), 13( FOD) 3. AUDIO PATH_CDP LRCK LRCK DATA DATA CD_ I2S MUX_ I2S RFIC PIN34,35,36 DSP PIN98,99,100 Copyright © 2008 LG Electronics. Inc. All right reserved. 3-35 LGE Internal Use Only Only for training and service purposes...
  • Page 51 6. PWM IC_MAIN 5. AUDIO MICOM_MAIN MAIN B’D:EEPROM CALL(SDA,SCL) MAIN B’D:PWM IC FREQUENCY 12.288MHz IC103 PIN 5,6 IC702 PIN 86 LGE Internal Use Only 3-36 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 52 MAIN B’D:PWM IC IS OUTPUT IC702 PIN 19,20,23 DATA(PWM8_P,PWM8_M) IC702 PIN 74,75 8. FRONT B’D FRONT B’D:VFD DRIVER IC IS VFD_CLK, VFD_STB,VFD_D0 PIN 9,8,7 Copyright © 2008 LG Electronics. Inc. All right reserved. 3-37 LGE Internal Use Only Only for training and service purposes...
  • Page 53 LGE Internal Use Only 3-38 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 54: Wiring Diagram

    WIRING DIAGRAM 24PIN 9PIN 12PIN 4PIN 3-39 3-40 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 55: Block Diagram

    9.8304MHz AMP_SD,AMP_PROTECTION PWM/ADC_DAT CS5345_RST,PWM/ADC_CLK PORT_L/R DAC_BCK,DAC_LRCK IPOD & KEY PCB 5345_DAT TUNER_L/R SMPS TUNER SMPS CS5345 CS5345 +5V,+3.3V IPOD_L/R 3-41 3-42 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 56: Smps Schematic Diagram

    NOTE) Parts that are shaded are critical NOTE) With respect to risk of fire or NOTE) electricial shock. 2008.02.26 3-43 3-44 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 57 2. MICOM SCHEMATIC DIAGRAM 2008.02.26 3-45 3-46 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 58: Amp Schematic Diagram

    3. AMP SCHEMATIC DIAGRAM 2008.02.26 3-47 3-48 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 59 4. MCS SCHEMATIC DIAGRAM 2008.02.26 3-49 3-50 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 60 5. ADC SCHEMATIC DIAGRAM 2008.02.26 3-51 3-52 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 61: Servo Schematic Diagram

    6. SERVO SCHEMATIC DIAGRAM 2008.02.26 3-53 3-54 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 62: Front Schematic Diagram

    7. FRONT SCHEMATIC DIAGRAM 2008.02.26 3-55 3-56 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 63 8. TOUCH SCHEMATIC DIAGRAM 2008.02.26 3-57 3-58 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 64: 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. 3-59 3-60 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 65 2-1. MAIN P.C. BOARD DIAGRAM ( TOP VIEW ) 3-61 3-62 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 66 2-2. MAIN P.C. BOARD DIAGRAM ( BOTTOM VIEW ) 3-63 3-64 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 67 3-1. IPOD P.C. BOARD DIAGRAM ( TOP VIEW ) 3-2. IPOD P.C. BOARD DIAGRAM ( BOTTOM VIEW ) 3-65 3-66 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 68: Front P.c. Board Diagram

    4. FRONT P.C. BOARD DIAGRAM 3-67 3-68 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 69 6-2. TOUCH SLIDE P.C. BOARD DIAGRAM ( BOTTOM VIEW ) 5-2. TOUCH KEY P.C. BOARD DIAGRAM ( BOTTOM VIEW ) 3-69 3-70 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

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