LG MCD23 Service Manual
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LG MCD23 Service Manual

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P/NO : AFN62795812
MINI Hi-Fi SYSTEM
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE UNIT, READ THE "SAFETY PRECAUTIONS" IN THIS MANUAL.
MAY, 2008
MODEL : MCD23(MCS23F)
Internal Use Only
Website http://biz.lgservice.com

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  • Page 1 Internal Use Only Website http://biz.lgservice.com MINI Hi-Fi SYSTEM SERVICE MANUAL CAUTION BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS” IN THIS MANUAL. MODEL : MCD23(MCS23F) MAY, 2008 P/NO : AFN62795812...
  • Page 2 • PRINTED CIRCUIT DIARGAMS ..................3-63 ❍ SECTION 4. DISASSEMBLY AND ASSEMBLY OF MECHANISM DECK ..4-1 ❍ SECTION 5. REPLACEMENT PARTS LIST ..............5-1 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 3: Section 1. General

    (Do not use any other liquid cleaners, because they will damage the lens.) 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

    7) The laser beam from the pick-up should NEVER be directly facing the eyes or bare skin. Armband Resistor (1 Mohm) Resistor Conductive (1 Mohm) Sheet Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 5: Safety 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: Service Information For Eeprom

    Press ENTER key - ‘FLD’ write ‘OK’ Remote control ‘2’ + Front ‘STOP’ push same timing ¡ FLD display E2P CLR Auto power off Completed option setting Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 7: Program Download Guide

    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 8 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 9: Specifications

    12.5 W Max. Input Power 25 W Net Dimensions (WxHxD) 178 x 298 x 196 mm Net Weight (1EA) 1.9 kg LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 10: Section 2. Exploded Views

    TO THE PRESENCE OF IMPORTANT CABLE4 SAFETY INFORMATION IN SERVICE LITERATURE. CABLE1 MAIN CABLE3 CABLE2 FRONT CABLE8 CABLE7 DECK SMPS CABLE5 CABLE9 CABLE6 CABLE7 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 11: Mechanism Deck Exploded View

    MECHANISM DECK EXPLODED VIEWE DECK MECHANISM EXPLODED VIEW 1. MECHANISM DECK EXPLODED VIEW 153A 012A 012A 012B 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 • SPEAKER (MCS23F) A80B A80A Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 13: Packing Accessory View

    900 Remote Control 825 Antenna 818 Portable in Cable 801 Instruction Ass'y 814A I-POD Stand 803 Packing 803 Packing 804 Bag 802 Box LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 14: Section 3. Electrical Part

    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. LGE Internal Use Only Only for training and service purposes...

  • Page 15: 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 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 16 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. LGE Internal Use Only Only for training and service purposes...
  • Page 17 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 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 18: Pwm Modulation Part Check

    DATA INPUT PIN23 Resistor output INPUT PWM WAVE Check. Check PWM Modulator output Check FL:PIN75(+),74(-) Replace IC604. IC604(PS9830) FR:PIN71(+),70(-) OTHER OUTPUT Check Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 19: Power Amp Part Check

    Check each line resistor output voltage. 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 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 20 PIN16 data output. PIN6:+5V IC801(MLC3890) Check IC805 check CN802 PIN55 INPUT DATA. PIN13:RST/PIN12:BCK PIN1:DA_DATA/PIN2:DA_BCK PIN:11:MCLK/PIN10:LRCK PIN3:DA_LRCK/PIN5:CD_RESET PIN9:DATA IC801(MLC3890) DADATA0 OUTPUT. Replace IC805. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 21: Tape Play Part Check

    PN201 CHECK PIN2 : 8V IC200 BA3308 PIN6:6V Refer to SMPS troubleshooting Check IC200 Check PIN3.7 SIGNAL Replace IC200 IC200 OUTPUT LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 22: Tape Rec Part Check

    Check IC200 Check INPUT IC201 PIN2,7 PIN3,7 SIGNAL OUTPUT Check SW201 Check INPUT IC201 PIN2,7 PIN6,13 PIN3,10 Check IC201 PIN6,7 INPUT Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 23: Cd Electrical Troubleshooting Guide

    (X802) (X802) at Pin 31 of IC807? Check IC801 Replace IC801 input/ output and control line. Refer to Function check LGE Internal Use Only 3-10 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 24: Usb Function

    Replace IC801 Display “NO FILE” (PIN 116, 117) CHECK USB AUDIO FILE IN USB DEVICE (MP3, WMA FILE IS PLAYABLE) Copyright © 2008 LG Electronics. Inc. All right reserved. 3-11 LGE Internal Use Only Only for training and service purposes...

  • Page 25: Waveforms Of Major Check Point

    WAVEFORMS OF MAJOR CHECK POINT 1. FLASH/ SDRAM DATA ADDRESS RESET 2. SERVO IC807 IC807 LGE Internal Use Only 3-12 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 26: Audio Path

    3. AUDIO PATH LRCK LRCK DATA DATA IC801 IC807 Copyright © 2008 LG Electronics. Inc. All right reserved. 3-13 LGE Internal Use Only Only for training and service purposes...
  • Page 27 USB_5V AUDIO_L LRCK AUDIO_R DATA IC807 LGE Internal Use Only 3-14 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 28: Wiring Diagram

    WIRING DIAGRAM TUNER MODULE Copyright © 2008 LG Electronics. Inc. All right reserved. 3-15 LGE Internal Use Only Only for training and service purposes...

  • Page 29: Main Block Diagram

    BLOCK DIAGRAMS 1. MAIN BLOCK DIAGRAM LGE Internal Use Only 3-16 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 30: Cd Block Diagram

    2. CD BLOCK DIAGRAM Copyright © 2008 LG Electronics. Inc. All right reserved. 3-17 LGE Internal Use Only Only for training and service purposes...
  • Page 31 LGE Internal Use Only 3-18 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 32: Smps(Power) Circuit Diagram

    Parts that are shaded are critical NOTES) Symbol denotes DC chassis ground. NOTE) With respect to risk of fire or 2008.02.13 NOTE) electricial shock. 3-19 3-20 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 33: Main Circuit Diagram

    2. MAIN CIRCUIT DIAGRAM 2008.02.13 3-21 3-22 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 34: Servo Circuit Diagram

    3. SERVO CIRCUIT DIAGRAM 2008.02.13 3-23 3-24 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 35: Dsp Circuit Diagram

    4. DSP CIRCUIT DIAGRAM 2008.02.13 3-25 3-26 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 36: Adc Circuit Diagram

    5. ADC CIRCUIT DIAGRAM 2008.02.13 3-27 3-28 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 37: Front Circuit Diagram

    6. FRONT CIRCUIT DIAGRAM 2008.02.13 3-29 3-30 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 38 7. DECK CIRCUIT DIAGRAM 2008.02.13 3-31 3-32 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 39: Amp Circuit Diagram

    8. AMP CIRCUIT DIAGRAM 2008.02.13 3-33 3-34 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 40: Usb Circuit Diagram

    9. USB CIRCUIT DIAGRAM 2008.02.13 3-35 3-36 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 41: Mic Circuit Diagram

    10. MIC CIRCUIT DIAGRAM 2008.02.13 3-37 3-38 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 42: Key Circuit Diagram

    11. KEY CIRCUIT DIAGRAM 2008.02.13 3-39 3-40 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 43 3-41 3-42 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 44: Internal Block Diagram Of Ics

    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 Copyright © 2008 LG Electronics. Inc. All right reserved. 3-43 LGE Internal Use Only Only for training and service purposes...

  • Page 45: Block Diagram

    1, 5, 7, 9, 21, Ground I/O digital ground. 28, 38, 44, 50, 53, 57, 60, 64, 69, 73, 85, 95 LGE Internal Use Only 3-44 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 46 Positive PWM output of channel 4. PWM4_M Negative PWM output of channel 4. PWM5_P Positive PWM output of channel 5. Copyright © 2008 LG Electronics. Inc. All right reserved. 3-45 LGE Internal Use Only Only for training and service purposes...
  • Page 47 0V and 5V. The output-only pins are not 5V tolerant and the buses they are connected to can swing only between 0V and 3.3V. LGE Internal Use Only 3-46 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 48 Power Down and Self Refresh modes, providing low standby power. Input Bank Select: A11(BS) defines to which bank the BankActivate, Read, Write, or BankPrecharge command is being applied. Copyright © 2008 LG Electronics. Inc. All right reserved. 3-47 LGE Internal Use Only Only for training and service purposes...
  • Page 49 DQ Ground: Provide isolated ground to DQs for improved noise immunity. ( 0 V ) Supply Power Supply: +3.3V 0.3V Supply Ground LGE Internal Use Only 3-48 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 50: Pin Configuration

    Decimation AINL Modulator Filter LRCK SCLK Decimation AINR Modulator Filter Serial I/O SDTO Interface VCOM Voltage Reference CKS0 CKS2 CKS1 Copyright © 2008 LG Electronics. Inc. All right reserved. 3-49 LGE Internal Use Only Only for training and service purposes...

  • Page 51: Pin / Function

    ìHî: 24bit I S Compatible, ìLî : 24bit MSB justified CKS2 Mode Select 2 Pin CKS0 Mode Select 0 Pin LGE Internal Use Only 3-50 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 52 Out put Enable Logi c Y-Decoder Y-Gating De te ct or Tim er Cell M atrix X- Decoder A0ñ A18 Copyright © 2008 LG Electronics. Inc. All right reserved. 3-51 LGE Internal Use Only Only for training and service purposes...

  • Page 53: Typical System Block Diagram

    31.5 V Hardwire Supply VREG OC Limit System Decoupling Power Supply Power Decoupling Supply GVDD (12 V)/VDD (12 V) 12 V LGE Internal Use Only 3-52 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 54: Functional Block Diagram

    Drive BTL/PBTL!Configuration Pulldown Resistor GND_B GVDD_A BST_A PVDD_A Gate PWM_A Ctrl. Timing OUT_A Rcv. Drive BTL/PBTL!Configuration Pulldown Resistor GND_A B0034-03 Copyright © 2008 LG Electronics. Inc. All right reserved. 3-53 LGE Internal Use Only Only for training and service purposes...
  • Page 55 Electrical characteristics (unless otherwise noted, Ta = 25 C, V = 7.0V, f = 1kHz and BPF: 20Hz to 20kHz) LGE Internal Use Only 3-54 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 56 7. BU4052B_CMOS • BLOCK DIAGRAM COMMON OUT / IN COMMON OUT / IN Copyright © 2008 LG Electronics. Inc. All right reserved. 3-55 LGE Internal Use Only Only for training and service purposes...
  • Page 57 8. LC87F5NC8A_AUDIO MICOM • BLOCK DIAGRAM LGE Internal Use Only 3-56 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 58 9. MLC3895_DSP • BLOCK DIAGRAM 10. IP9010_MOTOR IC • BLOCK DIAGRAM Copyright © 2008 LG Electronics. Inc. All right reserved. 3-57 LGE Internal Use Only Only for training and service purposes...
  • Page 59 11. BU9543KV_MOTOR IC • BLOCK DIAGRAM 12. S-24CS16A01_EEPROM IC • BLOCK DIAGRAM LGE Internal Use Only 3-58 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 60: Circuit Voltage Chart

    3.498 V DVDD : 3.499 V C8A9 3.49 V 4.9 V DVDD : 3.499 V C8E6 3.497 V 5.23 V 3-59 3-60 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 61 3-61 3-62 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 62: Printed Circuit Board Diagrams

    TUN800 R875 C849 D103 Q802 C860 C859 R876 R860 Q202 R859 Q201 P7709 PN7303 PN201 C818 2007.11.23(224X156) MCD23 EAX42712201 3-63 3-64 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 63 R668 D103 C207 C101 C116 C875 R1A9 SW100 C862 PN7303 TUN800 Q201 P7709 C818 PN201 R889 EAX42712201 2007.11.23(224X156) MCD23 3-65 3-66 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 64 2. CD P.C. BOARD DIAGRAM ( TOP VIEW ) 3-67 3-68 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 65 CD 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...

  • Page 66: Smps P.c. Board Diagram

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

  • Page 67: Front P.c. Board Diagram

    W317 W321 VR301 Q301 W302 W301 R362 R363 W315 R364 R3D5 W309 MCD23 R3D7 EAX42720001 SW3D7 SW3D6 R3D6 07/11/23 3-73 3-74 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 68 5. KEY_1 P.C. BOARD DIAGRAM 6. DECK P.C. BOARD DIAGRAM EAX42721201 7. USB P.C. BOARD DIAGRAM 3-75 3-76 Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 69 3-77 3-78 LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 70: Section 4. Disassembly And Assembly Of Mechanism Deck

    [Figure A-1] 1) Separate the Loading FFC. 2) Moving the Gear Loading toward the arrow direction(open). 3) Open the Tray Loading. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 71 [Figure A-2] 1) Push the Hook. 2) Separate the Tray Loading. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 72 [Figure A-3] 1) Release a screw. 2) Lift toward the arrow direction(—). 3) Separate the Tray Disc. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 73 [Figure A-4] 1) To disassemble the Gear Tray Cam, release a screw. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 74 [Figure A-5] 1) Release the screws. 2) Draw the Loading FFC from the Hook holder. 3) Take out the Motor wire. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 75 [Figure A-6-a] 1) To down the Frame UD, move the Gear Main like [Figure A-6-a]. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 76 [Figure A-6-b] 2) Release a screw. 3) First, push the Frame UD to leftward. Lift it upward to disassemble. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 77 7) Disassemble the Belt. 8) Remove the Hook and disassemble the Motor. 9) Turn the plate toward the arrow direction and disassemble the Clamp. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 78 [Figure A-8] 1) Push the Hook. 2) Pull the Guide UD. 3) Lift the Guide UD up. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 79 [Figure A-9] 1) Separate the FFC from the Guide part. 2) Release a screw and disassemble the PCB. LGE Internal Use Only 4-10 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 80 1) Fix – part of the Guide UD to — part of the Base Main. 2) Move the Guide UD toward the arrow direction(˜) from below. Copyright © 2008 LG Electronics. Inc. All right reserved. 4-11 LGE Internal Use Only...
  • Page 81 1) Insert – part of Frame UD into the Guide part of the Guide UD. 2) Fix the right-Boss(—) of the Frame UD to the Base Main. 3) Turn the screw to the right. LGE Internal Use Only 4-12 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 82 [Figure B-3] • The Initial Mode of the Base Main assembly 1) Assemble the Tray Loading Assy on the state of the Gear Main like [Figure B-3] Copyright © 2008 LG Electronics. Inc. All right reserved. 4-13 LGE Internal Use Only...
  • Page 83 1) Insert the Motor Assy into the hole of the Tray Loading. 2) To prevent the turning of the Motor Assy, turn it to the left and check out holding. LGE Internal Use Only 4-14 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 84 1) When assemble the Gear Tray Cam, fix hole like [Figure B-5-a]. (the state that assemble the Tray Disc easily) Copyright © 2008 LG Electronics. Inc. All right reserved. 4-15 LGE Internal Use Only Only for training and service purposes...
  • Page 85 [Figure B-5-b] 1) Insert the Tray Disc. 2) Check the Tray Disc holding. 3) Turn the screw to the right. LGE Internal Use Only 4-16 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 86 1) Put the Loading FFC down through the square hole of the Base Main. 2) Push the Tray Loading with a hand softly until heard the hook. Copyright © 2008 LG Electronics. Inc. All right reserved. 4-17 LGE Internal Use Only...
  • Page 87 [Figure B-6-b] 3) Insert the FFC into the connector. LGE Internal Use Only 4-18 Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

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