LG OK99 Service Manual
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LG OK99 Service Manual

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CONFIDENTIAL
HI-FI SYSTEM
SERVICE MANUAL
MODEL: OK99
CAUTION
BEFORE SERVICING THE UNIT, READ THE "SAFETY PRECAUTIONS"
IN THIS MANUAL.
P/NO : AFN78511848
SEPTEMBER, 2018
Copyright © 2018 LG Electronics Inc. All rights reserved.
Only for training and service purposes.

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  • Page 1 CONFIDENTIAL HI-FI SYSTEM SERVICE MANUAL MODEL: OK99 CAUTION BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS” IN THIS MANUAL. P/NO : AFN78511848 SEPTEMBER, 2018 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 2 CONTENTS SECTION 1 ..GENERAL SECTION 2 ..CABINET & MAIN CHASSIS SECTION 3 ..ELECTRICAL SECTION 4 ..MECHANISM (DM19D) Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 3: Table Of Contents

    1. HIDDEN KEY MODE TABLE 2. HIDDEN KEY MODE DESCRIPTION PROGRAM DOWNLOAD GUIDE ........................1-7 FOTA UPDATE STEP USING BT APP ......................1-10 SPECIFICATIONS ............................1-12 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 4: Servicing Precautions

    (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. Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 5 7) The laser beam from the pick-up should NEVER be directly facing the eyes or bare skin. Armband Resistor (1 M) Resistor Conductive (1 M) Sheet Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 6: Esd Precautions

    ELECTRIC SHOCK. THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN SERVICE LITERATURE. Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 7: Hidden Key Mode

    - Entrance Key : Front ‘Stop’ + Remote Control Key ‘ ‘ for 5s. - Exit Key : Auto exit. - Explanation : ‘E2P CLR’ is displayed on the VPD and turn off the power automatically. Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 8: Program Download Guide

    2) Copy Firmware file to USB device. NO USB   Insert USB device at USB function. SEARCH  MICOM UP  FINISH  AUTO POWER OFF Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 9 2) Copy Firmware file to USB device. NO USB   Insert USB device at USB function. SEARCH  FIRMWARE  FINISH  AUTO POWER OFF Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 10 2) Copy Firmware file to USB device. NO USB   Insert USB device at USB function. SEARCH  EQDEMOUP  FINISH  AUTO POWER OFF Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 11: Fota Update Step Using Bt App

    Step4 : Confi rm update When touch the “Update” button, user could Select the OK button on the caution message. update the SET fi rmware using FOTA. 1-10 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 12 When fi nishing the fl ash memory writing, pop-up phone, the SET overwrite the fi rmware to fl ash message about fi nish is displayed and the SET memory. auto power off. 1-11 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 13: Specifications

    450 W RMS × 2 (6 Ω at 1kHz, 15% THD) 900 W RMS (12 Ω at 200Hz, 15% THD)  Design and specifications are subject to change without notice. 1-12 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 14 DISASSEMBLY INSTRUCTIONS ........................2-2 EXPLODED VIEWS ............................2-9 1. CABINET AND MAIN FRAME SECTION ....................2-9 2. DECK MECHANISM SECTION ......................2-11 3. PACKING ACCESSORY SECTION ....................... 2-13 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 15: Disassembly Instructions

    Figure 1. Panel Side L/R disassembly - 1 2) Disassemble each of the two screws located inside the handle. Figure 2. Panel Side L/R disassembly - 2 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 16 3) Pull out Cover Side Assembly L/R in the backward direction. Figure 3. Panel Side L/R disassembly - 3 4) Remove the 3 screws. Figure 4. Panel Top disassembly - 1 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 17 6) As shown in the fi gure, remove the Panel Top by pushing the front part and lifting the rear part. Figure 6. Panel Top disassembly - 3 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 18 7) Remove the 9 screws on the Panel Rear. Figure 7. Panel Rear disassembly 8) Bracket MD + Frame Main Screw 4 EA Disassembly Figure 8. Main Set disassembly - 1 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 19 9) Remove the Set LED Connector / Speaker LED Connector / Speaker Network cable. Figure 9. Main Set disassembly - 2 10) Power Cable Disconnection Figure 10. Main Set disassembly - 3 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 20 11) Grasp both sides and pull upward to remove the assembly. Figure 11. Main Set disassembly - 4 12) Complete removal of the Main Set. Figure 12. After detaching the Main Set Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 21 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 22: Exploded Views

    EXPLODED VIEWS 1. CABINET AND MAIN FRAME SECTION CABLE7 260L CABLE2 CABLE8 CABLE8 MAIN CABLE3 260R CABLE4 SMPS CN803 CABLE5 CABLE1 2-10 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 23: Deck Mechanism Section

    2. DECK MECHANISM SECTION (DM19D) 1030 1049 1015 A005 2-11 2-12 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 24: Packing Accessory Section

    3. PACKING ACCESSORY SECTION 826 Filter, Ferrite Core 825 FM Wire Antenna 900 Remote Control 827 Microphone 2-13 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 25 2-14 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 26 5. SPARKLE LED P.C.BOARD DIAGRAM ....................3-65 6. X-FLASH LEFT P.C.BOARD DIAGRAM ....................3-67 7. X-FLASH RIGHT P.C.BOARD DIAGRAM .................... 3-68 8. SPEAKER LED P.C.BOARD DIAGRAM ....................3-68 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 27: One Point Repair Guide

    If TH900~TH903 is open, If BD901 is short-circuit, replace it with a same replace it with a new one. replace it with a new one. specifi cations one. Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 28 < Q905~Q906 > If F911 is not short-circuit, If Q905~Q906 is short-circuit, replace it with a same specifi cations one. replace it with a new one. Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 29: Booting When Power On The Set

    2-1-3. Service hint (Any picture / Remark) X500 X500 KEY3 KEY3 (24 MHz) (24 MHz) (R5B64) (R5B64) IC501 IC501 X501 X501 (32.768 kHz) (32.768 kHz) < MAIN board top view > Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 30: Vfd Is Not Displayed When Power On The Set

    VFD_STB about VFD_STB VFD_D0 12Vp- p VFD_DO VFD_DAT +3.3VA +3.3VA 3.3VA CN804 Q801, Q802 Base < CN804 > < Waveform of the grid current driver> Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 31: Booting In Cd/Usb Function

    4-1-3. Service hint (Any picture / Remark) IC204 IC204 IC202 IC202 IC205 IC205 < MAIN board top view > < MAIN board bottom view > Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 32 4-2-3. Service hint (Any picture / Remark) X X X I I IC501 IC501 X X O O X500 X500 X500 < MAIN board top view > < Signal waveform > Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 33 3) After change IC503, if It is still not below waveform, check IC501(DSP IC). 4-3-3. Service hint (Any picture / Remark) V V CC SCLK IC503 IC503 < MAIN board bottom view > < Signal waveform > Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 34 IC502 IC502 / / CS R AS / W E C AS < MAIN board bottom view > < Signal waveform > Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 35: Operation Of Md

    < Waveform of SP- & SP+ < MAIN board top view > for driving SPINDLE motor > IC400 IC400 < MAIN board bottom view > 3-10 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 36 < Waveform of SLED- & SLED+ < MAIN board top view > for driving SLED motor > IC400 IC400 < MAIN board bottom view > 3-11 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 37 CN401 CN401 < Waveform for driving TRAY open/close motor > < MAIN board top view > IC400 IC400 < MAIN board bottom view > 3-12 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 38 CN400 pin17 to CN400 pin17 to CN400 CN400 CN400 < Waveform of T± < MAIN board top view > for driving TRACKING actuator > 3-13 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 39 CN400 pin18 to CN400 pin18 to CN400 CN400 CN400 < Waveform of F± < MAIN board top view > for driving FOCUSING actuator > 3-14 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 40: Sound In The Usb Function

    RLIM = 1500mA FIX DGND DGND USB D-/D+ (CN502 pin1, 2 & pin7, 8) < USB schematic > < Waveform of USB D± signal > 3-15 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 41: Audio Output Is Small Or No Audio Output

    5) Lastly, check speaker terminal (CN701). 7-1-3. Service hint (Any picture / Remark) IC701 IC701 IC703 IC703 IC700 IC700 IC702 IC702 < MAIN board top view > 3-16 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 42: Power On (Vfd Display D-Protection And Power Off)

    You should try to change both of +/- FET and Driver IC has electric potential. So be careful when you as a pair. deal with it. 3-17 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 43: Speaker No Audio

    R756 R765 pin5 of ICs pin5 of ICs   CSD PGND < MAIN board top view > < MAIN - AMP circuit > 3-18 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 44: Sound

    DSPI_MCLK ADC_DATA MCS_BCK IC601 IC501 MCS_LRCK IR AMP IC301 IC301 MIX_DATA_OUT < AUX function signal fl ow > < MAIN board bottom view > 3-19 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 45 PT_L to pin29 PT_L to pin29 PT_R to pin30 PT_R to pin30 < PORT. IN function signal fl ow > < MAIN board bottom view > 3-20 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 46 TUNER_L to pin27 TUNER_L to pin27 TUNER_R to pin28 TUNER_R to pin28 < TUNER function signal fl ow > < MAIN board bottom view > 3-21 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 47 MIC_S2 to pin4 MIC_S2 to pin4 MIC_S1 to pin3 MIC_S1 to pin3 < MIC IN function signal fl ow > < MAIN board bottom view > 3-22 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 48 MCS_BCK IR AMP MIX_DATA2_OUT MIX_DATA2_OUT MIX_DATA0_OUT MIX_DATA0_OUT MCS_LRCK MCS_LRCK IC601 IC601 < Bluetooth function signal fl ow > < MAIN board bottom view > 3-23 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 49: Electrical Troubleshooting Guide

    Is there Check PWR_CTRL ‘H’ signal at IC951 From DSP(IC501_D11). pin4? Check and replace IC951. Or check line of MAIN PCB is short or not. 3-24 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 50 R9C7, R938 normal ? pin1 to pin3? Check and replace IC952. Or check line of MAIN PCB is Check or replace D952, D959. short or not. 3-25 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 51 Check or replace IC902 and Check or replace D954~D955. Replace Q905~Q906. Check Q905~Q906 gate(pin1) Check line of MAIN PCB is Components (Resistors, Diodes). short or not. 3-26 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 52: System Part

    Check When turn CN102 pin33, 34, 35 data Check FFC cable. the volume, count is change? signal OK? FRONT board OK. Check MAIN board. 3-27 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 53: Audio Check

    IC401 pin34, 35, 36 RF & Servo signal I2S output signal OK? to CN400, CN401. IC501 pin N1, N2, N4 Check IC501. I2S input signal OK? 3-28 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 54 2 AUX input signal Check audio jack. IC301 Check IC501. pin15, 16, 17 I2S input signal IC301 Replace IC301. pin18 ADC_data output signal 3-29 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 55 OK? IC301 Check control signal pin15, 16, 17 I2S input from IC501 to IC301. signal OK? IC301 pin18 ADC_data output signal Replace IC301. 3-30 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 56 IC501 pin D1, E1 I2S clock signal Check IC501. IC501 Check IC501. pin E2 I2S data signal IC601 PWM data output signal Replace IC601. 3-31 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 57 Check SMPS. Q714, Q705, Q706, Q707, Q708 Q715, Q701, Q702 Check Check Q705, Q706, Q707, Q708. Q714, Q715, Q701, Q702. Check speaker cable connection. 3-32 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 58: Lighting

    Check speaker LED assy. NO LIGHTING (Sparkle & X-Flash LED) Check Check and replace Q151, Q157~195 Q151, Q157 ~ Q195. LED_5V. Check Sparkle & X-Flash LED assy. 3-33 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 59: Waveforms Of Major Check Point

    C5B24 18pF X501 INPUT/OUTPUT 32.768KHZ DGND 2 FLOAT FLOAT 3 INPUT/OUTPUT C5B2 C5B5 X500 24MHz 10pF 10pF DGND R5B83 ZD506 DGND DGND DGND ZD501 3-34 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 60: Pwm (Ic600)

    2.2K VDD_CORE FLOAT INPUT/OUTPUT MSDIN3 MSDIN3 INPUT/OUTPUT FLOAT C613 C603 24.576MHz MSDIN2 SSDIN2 MSDIN1 MSDIN1 MSDIN0 SSDIN0 MLRCK SLRCK DGND R609 MCS_BCK MBCK DGND 3-35 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 61: Servo (Ic401)

    Fig 3-2. CD-16M (X400) (IC401 pin31) IC401 R423 R422 C424 X400 100nF RFGND RFGND C431 16.9344MHz 100nF RFGND R419 RFGND C444 C445 15pF 15pF RFGND 3-36 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 62: Motor Driver (Ic400)

    VOTR- VCCD C427 220uF 16V LOAD- M_5V VOTR+ Vcc2 VOLD- SLED+ SPIN- VOSL+ MGND SLED- VOLD+ SPIN+ VOSL- VOTK- VOFC- C415 47nF VOTK+ VOFC+ 3-37 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 63: Adc

    1.1_D- TP304 GPIO3/IntC R308 MIC_DATA_IN DGND TP310 DOUT R312 ADC_DATA_IN DVDD TP311 IOVDD R319 DSPI_BCK LRCK SCKI(3.3V) TP312 R320 DSPI_LRCK DGND TP313 DSPI_MCLK R321 3-38 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 64: Bluetooth

    TP504 BT_TX BTGND L508 TP505 DGND BT_RX TP506 R501 0OHM BT_RTS TP508 R504 0OHM BT_CTS TP509 R507 0OHM RESET BT_RST TP510 3.3VA L502 DGND 3-39 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 65 3-40 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 66: Wiring Diagram

    * Upper lighting part 10Pin * S_Lighting : Sparkle + X -flash TOP PCB SUB PCB SMPS PCB (VFD, LED, Key etc) (RMC, Mic) 3-41 3-42 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 67: Block Diagram

    Search / Scratch PWM + AMP Block LED_EXP/LAT OUT1~16 Lighting /CLK/DAT WL_SCL/SDA/INT/MSG_RDY DSP_I2S_LRCK/BCK, WL_SPI_DI To Wireless DSP_C_WF Wireless TOP Block WL_SPI_CLK/ Block Option S/Flash CS/DO/WP 3-43 3-44 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 68: Circuit Voltage Chart

    C832 21.13 ICA301 2-VRMS Audio Line Driver VDD:3~3.6V VDD : 3.3V VDD : 3.29V 85 °C Line Driver With Adjustable Gain C834 16.91 3-45 3-46 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 69 1.85 +5.1VA 5.12 OUT13 0.20 2.53 +5.1VA(1.7A) 5.12 OUT12 0.20 0.00 DGND 0.00 OUT11 0.20 -5V(0.1A) -4.75 OUT10 0.20 DGND 0.00 OUT9 0.20 3-47 3-48 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 70: Connector Voltage

    3.55 OUT13 0.20 0.00 OUT12 0.20 CLK_FROM_ 3.35 OUT11 0.20 DATA_FROM_ OUT10 0.20 3.35 CN601 NC_PWM JIG OUT9 0.20 CLK_TO_ 3.35 DATA_TO_ 3.44 3-49 3-50 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 71 MAIN <-> CNA301 FRONT MIC_DET 3.39 MIC_SE 0.10 MIC_GND 0.10 MIC_S2 0.10 SPKLED_B 5.10 SPKLED_G 4.80 MAIN <-> SPK CNS301 SPKLED_R 5.00 0.00 3-51 3-52 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 72: Printed Circuit Board Diagrams

    PRINTED CIRCUIT BOARD DIAGRAMS 1. SMPS P.C.BOARD DIAGRAM (TOP VIEW) 3-53 3-54 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 73 SMPS P.C.BOARD DIAGRAM (BOTTOM VIEW) NOTE) Warning Parts that are critical with respect to risk of fire or electrical shock. 3-55 3-56 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 74: Main P.c.board Diagram

    2. MAIN P.C.BOARD DIAGRAM (TOP VIEW) 3-57 3-58 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 75 MAIN P.C.BOARD DIAGRAM (BOTTOM VIEW) 3-59 3-60 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 76: Top P.c.board Diagram

    3. TOP P.C.BOARD DIAGRAM (TOP VIEW) 3-61 3-62 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 77 TOP P.C.BOARD DIAGRAM (BOTTOM VIEW) 3-63 3-64 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 78: Jack & Rmc P.c.board Diagram

    4. JACK & RMC P.C.BOARD DIAGRAM (TOP VIEW) (BOTTOM VIEW) 5. SPARKLE LED P.C.BOARD DIAGRAM (TOP VIEW) (BOTTOM VIEW) 3-65 3-66 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 79: X-Flash Left P.c.board Diagram

    6. X-FLASH LEFT P.C.BOARD DIAGRAM 7. X-FLASH RIGHT P.C.BOARD DIAGRAM (TOP VIEW) (TOP VIEW) (BOTTOM VIEW) (BOTTOM VIEW) 8. SPEAKER LED P.C.BOARD DIAGRAM (TOP VIEW) (BOTTOM VIEW) 3-67 3-68 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.
  • Page 80 9. Guide ............................... 4-5 10. Deck PCB Assembly ..........................4-5 11. Motor Assembly ............................4-5 12. FFC Cable ............................... 4-5 DECK MECHANISM EXPLODED VIEW (DM19D) ................... 4-6 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 81: Deck Mechanism Disassembly

    1) Turn the Plate to a counterclockwise direction and then lift up the Plate. 2) Remove the Plate. 2-2. Magnet Remove the Magnet. 2-3. Clamp Remove the Clamp. Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 82: Tray Disc

    2) Pull the Tray Disc until it is locked. Tray Disc < Figure E > Note • When reassembling place the Guide as Figure E. Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 83: Pick Up Assembly

    4) Disconnect the FFC Cable from the Pick Up Base Up/Down in the Hole (H2) of the Base Main Assembly. as Figure G-3. 5) Remove the 4 Rubber Dampers. Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 84: Belt Loading

    1) Move the Guide in direction of arrow (A) as 12. FFC Cable Figure H-1. Remove the FFC Cable. 2) Separate the Guide from the Base Main. Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

  • Page 85: Deck Mechanism Exploded View (Dm19D)

    DECK MECHANISM EXPLODED VIEW (DM19D) 1030 1049 1015 A005 Copyright © 2018 LG Electronics Inc. All rights reserved. Only for training and service purposes.

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