LG 48LX1Q Series Service Manual

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OLED TV

SERVICE MANUAL

CHASSIS : E*21U

MODEL : 48LX1Q***

MODEL :

CAUTION

BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

P/NO : MFL71892902 (2211-REV01)

Any reproduction, duplication, distribution (including by way of email, facsimile or other electronic means),

publication, modification, copying or transmission of this Service Manual is STRICTLY PROHIBITED unless you

have obtained the prior written consent of the LG Electronics entity from which you received this Service Manual.

The material covered by this prohibition includes, without limitation, any text, graphics or logos in this Service

Manual.

55LX1Q***

Table of Contents

Summary of Contents for LG 48LX1Q Series

Page 1 Service Manual is STRICTLY PROHIBITED unless you have obtained the prior written consent of the LG Electronics entity from which you received this Service Manual. The material covered by this prohibition includes, without limitation, any text, graphics or logos in this Service Manual.
Page 2 BLOCK DIAGRAM ................. 14 EXPLODED VIEW .................. 15 ASSEMBLY / DISASSEMBLY GUIDE ........APPENDIX TROUBLE SHOOTING GUIDE ..........APPENDIX webOS22 new features & Usability ........APPENDIX - 2 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 3: Safety Precautions
When the exposed metal has no return path to the chassis the reading must be infinite. An other abnormality exists that must be corrected before the receiver is returned to the customer. - 3 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 5 1. Clip each fuse or resistor lead at top of the circuit board hollow stake. 2. Securely crimp the leads of replacement component around notch at stake top. - 5 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 6: Specification
- Digital TV : DTMB (China/Hongkong), DVB-C (China) - Analogue TV : PAL D/K,I, NTSC-M (China/ Hongkong) 4) Philliphine - Digital TV : ISDB-T - Analogue TV : NTSC-M - 6 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 7 * Hong Kong - 3780, 0.4/0.6, 4/16/64QAM, PN945, 720 ► DVB-C - Symbolrate : 4.0Msymbols/s to 7.2Msymbols/s - Modulation : 16QAM, 64-QAM, 128-QAM and 256-QAM - 7 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 9 Audio out SPDIF(1EA) Optical Audio out USB Input (2EA) EMF, DivX HD, For SVC (download) JPEG, MP3, DivX HD Ethernet Connect (1EA) Ethernet Connect - 9 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 10 UHD DEEP COLOUR ON When HDMI 4096*2160 134.86 59.94 593.407 UDTV 2160P UHD DEEP COLOUR ON When HDMI 4096*2160 135.00 60.00 UDTV 2160P UHD DEEP COLOUR ON - 10 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 11 297.00 UDTV 2160P 3840*2160 56.25 25.00 297.00 UDTV 2160P 3840*2160 67.5 30.00 297.00 UDTV 2160P 4096*2160 53.95 23.97 296.703 UDTV 2160P 4096*2160 UDTV 2160P - 11 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 12 (6) After finishing the update, it will show a pop-up below the picture. (7) Click “Yes” : Tv will be turn off and on itself - 12 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 13 “The latest version of the SW is available for your TV. Do you want to update now” (3) [Yes] : update starts. [No] : Close the pop-up, check out later - 13 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 15: Exploded View
It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. - 15 - Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes.
Page 17 (2) Hold the center of the lower part of the jersey cover assy and separate it. (It is assembled with a magnet, so if you pull it with force, it will be separated.) Gripping Area Copyright © 2022 LG Electronics. Inc. All rights reserved. Only for training and service purposes.
Page 19 (4-1) Remove screws to remove Power Code BRK. (Tool set up : Screw driver with “+” tip.) (4-2) Remove the power code bracket and power code. Copyright © 2022 LG Electronics. Inc. All rights reserved. Only for training and service purposes.
Page 20 And hold both ends of B/C with both hands and disassemble B/C.             * The number of screws varies by inch. Copyright © 2022 LG Electronics. Inc. All rights reserved. Only for training and service purposes.
Page 21 (7-1) Remove screws to remove Main PCB & Power Supply (Tool set up : Screw driver with “+” tip.) (7-2) Remove connectors to remove the main PCB & Power Supply. (with snap fit) (7-3) Remove the main PCB & Power Supply Copyright © 2022 LG Electronics. Inc. All rights reserved. Only for training and service purposes.
Page 22 Set Disassembly (6) (8-1) Remove screws to remove VESA supporter(Tool set up : Screw driver with “+” tip.) (8-2) Remove VESA supporter 4EA. (with snap fit) Copyright © 2022 LG Electronics. Inc. All rights reserved. Only for training and service purposes.
Page 23 (9-1) Remove screws to remove WIFI BRK(Tool set up : Screw driver with “+” tip.) (9-2) Remove Wi-Fi Assy. (with snap fit) (9-3) Pull the IR Assy all the way out and remove it. Copyright © 2022 LG Electronics. Inc. All rights reserved. Only for training and service purposes.
Page 25 2. Push the thin sheet into the mark on the left side of the product and proceed to the outside of the product as if sawing up and down *. Do not insert the sheet more than 70mm Copyright © 2022 LG Electronics. Inc. All rights reserved. Only for training and service purposes.
Page 26 5. Proceed in the same way as on the left side of the 6. Flip the product to face it. left on the front of the product product Copyright © 2022 LG Electronics. Inc. All rights reserved. Only for training and service purposes.
Page 27 11. Front Jersey Assy Double-sided Tape Release Paper 12. Attaching the Front Assy. Removal (3ea) (After attaching, press the double-sided tape area to attach it) Copyright © 2022 LG Electronics. Inc. All rights reserved. Only for training and service purposes.
Page 28 LX1 Disassembly guide Set Disassembly (12) Screw assembly point Double-sided tape attachment area 13. Completed replacement work by fastening 6 screws that were disassembled in work 1 Copyright © 2022 LG Electronics. Inc. All rights reserved. Only for training and service purposes.
Page 29 Stand Base / Cable Cover Length is different between inches. - 55”, 48” : Common Use - 42” : Dedicated Use Stand Rubber (Front) Stand Rubber (Rear) Copyright © 2022 LG Electronics. Inc. All rights reserved. Only for training and service purposes.
Page 30 (1-2) Remove screws to remove side bridge. (Tool set up : Screw driver with “+” tip.) [42” Only] 42” Only        Copyright © 2022 LG Electronics. Inc. All rights reserved. Only for training and service purposes.
Page 31 (1-1) Place the inside of the product facing upwards. (1-2) Remove the parts by pressing on both sides of the holder. Hook Holder Cable Holder(A) Cable Holder(B) Copyright © 2022 LG Electronics. Inc. All rights reserved. Only for training and service purposes.
Page 33 E. Noise Circuit noise, mechanical noise F. Exterior error Exterior defect First of all, Check whether there is SVC Bulletin in GSCS System for these model. Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 34 ☞A2 & A4 Always check & record S/W Version and White Replace Main Board Re-enter White Balance value Balance value before replacing the Main Board Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 35 ☞A9 Check various Check and No Video/ voltages of Power Normal replace No audio Board (12V…) voltage? MAIN B/D Replace Power Board and repair parts Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 36 1. Reconnection 2. Install Booster S/W Upgrade Contact with signal distributor Normal or broadcaster (Cable or Air) Picture? Normal Picture? Replace Main B/D Close Close Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 37 /Cable device and error normal cable Request repair for external device/cable Check external External device device and Replace Main/T-con B/D HDMI /Cable cable error normal Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 38 Replace screen? Screen (Check normal operation of Main /T-con External Input, Component, normal? RGB and HDMI/DVI by connecting Jig, pattern Generator ,Set-top Box etc. Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 39: Power Error
Measure voltage of each output of Power B/D Normal? Normal Replace Main B/D voltage? Normal Close Check ST-BY 3.5V voltage? ☞A9 Replace Power B/D Replace Power B/D Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 40 Normal Replace Main B/D Check Power B/D voltage? voltage ※ Caution Check and fix exterior Replace Power B/D of Power B/D Part Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 41 Reboot by SW down load function UNKNOWN No meaning (same as initial value) COMP_END OLED threshold voltage degradation(Compensation) completes. PNWASHDONE Power off by panel noise wash function complited. (OLED) Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 42 Power Board Screen normal voltage Speaker off Cancel OFF Replace Power Board and repair parts Check Replace MAIN Board Disconnection Speaker disconnection Replace Speaker Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 43 (In case of Connect and check Normal External Input other external audio? signal error) device Check and fix external device Check and fix external device Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 44: Function Error
Replace Main B/D (Power B/D don’t have problem) If R/C operate, Normal Close operating? Explain the customer cause is interference from light in room. Replace R/C Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 45 5sec RF Receiver ver Close is “00.00”? Replace MR22 Close Replace MR22 * If you conduct the loop at 3times, change the M22. Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 46 INSTART menu Voltage? 1pin Main B/D ☞A14 Close Check & Repair Wifi cable connection ☞A4 Wi-Fi Mac value is “NG”? Close Change the Wifi assy Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 47 Recognition error - S/W Version HDMI/ Check and fix DVI, Optical Replace Main B/D Fix in external device/cable Recognition error accordance with technical information Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 48 “Part related to nose” in the Owner’s then proceed as shown in the solution manual Manual. (For models without any fix information, provide the description) Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 49 Revised date 16/16 Zoom part with Module Replace module exterior damage damage Cabinet Replace cabinet damage Remote Replace remote control control damage Stand Replace stand dent Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 50 Exchange Module (1) ~ (3) A-6/11 ~A-8/11 Inverter/ Module Exchange T-Con (1) ~ (2) A-9/11 ~ A-10/11 Exchange Power Board(PSU) A-11/11 Continue to the next page Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 51 Remote control operation checking method D. Function error Motion Remote operation checking method How to use the Service remote control A15~A17 E. Etc Check items after Main B/D replacement Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 52 Standard Repair Process Detail Technical Manual Error Established error_No A. Video video/Normal audio symptom date Revised Check Back Light On with naked eye Content date Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 53 2. Enter into White Balance. 3. After recording the R, G, B (GAIN, Cut) value of Color Temp (Cool/Medium/Warm), re-enter the value after replacing the MAIN BOARD. Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 54 All settings  Programmes  Programme Tuning & settings  Manual Tuning When the signal is strong, use the attenuator (-10dB, -15dB, -20dB etc.) Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 55 Revised Version checking method Content date 1. Checking method for remote control for adjustment Version Press the IN-START with the remote control for adjustment Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 56 1. Check the signal strength or check whether the screen is normal when the external device is connected. 2. After measuring each voltage from power supply, finally replace the MAIN BOARD. Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 57 Revised Content connection diagram date As the part connecting to the external input, check the screen condition by signal Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 58 A. Video error_Color error symptom date Revised Content Check Link Cable(VX1) reconnection condition date Check the contact condition of the Link Cable, especially dust or mis insertion. Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 59 Screen darkness to disconnection of the FFC cable pin. G color transient due to poor FFC cable CABLE G Color Excessive connection A - 1/11 Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 60 LVDS cable connection problem CABLE Color spread LVDS cable connection problem Due to foreign substance withi nLVDS CABLE Screen stop cable PIN A - 2/11 Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 61 Main IC problem Main Dark picture Dark left-side screen Top/bottom screen part Main Broken picture Picture problem due to tuner Inner side quality problem A - 3/11 Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 62 Screen spread Screen corner appears blurry Main Color Spread Color spread on the screen Main Blurry Screen Blurry picture on the screen A - 4/11 Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 63 Screen picture spread problem Screen problem No problem at the initial stage. Right-side Main During Heat run, right-side picture picture problem problem A - 5/11 Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 64 BLU internal foreign matter inflow MODULE Internal matter 6 block image broken MODULE Image broken MODULE Image broken Screen sync signal broken A - 6/11 Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 65 BLU Vertical spreading on cube screen in no MODULE Vertical smear signal MODULE Over color Screen contour part brightly Over color A - 7/11 Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 66 Center of the screen 1 block dark MODULE Screen darkness MODULE Vertical bar Center Vertical Bar Darkness at the MODULE bottom of the MODULE internal BLU breakage screen A - 8/11 Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 68 The entire screen is dark and bit noise T-CON Image Broken occurs The entire screen is dark and bit noise T-CON Image Broken occurs A - 10/11 Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 69 Appendix : Exchange Power Board (PSU) #11 Check parts by symptom No Light No picture/Sound Ok A - 11/11 Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 70 Established B. Power error _No power symptom date Revised Content Check front Power Indicator date ST-BY condition: On or Off Power ON condition: Turn Off Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 71 Check power input voltage and ST-BY Content date Check DC 12VM Level Power To Main B’d (ST-BY : 7.8V, Normal : 12V) P201 P202 P251 Power To Module Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 72 POWER OFF MODE checking method date Entry method 1. Press the IN-START button of the remote control for adjustment 2. Check the entry into adjustment item 3 Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 73: Checking Method
1. Press the Setting button on the remote control. 2. Select the Sound function of the Menu. 3. Select the Sound Out. 4. Select TV Speaker. Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 74 3.Connect the tester RX1 to the speaker terminal and if you hear the ‘Chik~ Chik~’ sound when you touch the GND and output terminal, the speaker is normal. Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 75 2.Check the standby 3.5V on the terminal (③) 3.AS checking the Pre-Amp(IR LED light) , the power is in ON condition, an Analog Tester needle should move slowly, otherwise, it’s defective. Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 76 Checking order to check motion remote/wifi WOV_PDM_CLKOUT Checking order 1.Check BT/Wifi cable condition between BT/Wifi assy & Main board. 2.Check the 3.5V on the terminal 1 pin Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 77 Standard Repair Process Detail Technical Manual Error Established E. Etc symptom date Revised Content How to use the Service remote control date 1. How to access the remote control Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 78 Digital EYE function ON/OFF For some Model, access to the Test Pattern TILT Used for screen tilting change (Access to the old PDP control mode) Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 79 Connects to external input 1,2,3 COMP1,2 (Added function) Connects to Component 1,2 HDMI1,2,3,4 Connects to HDMI 1,2,3,4 (Add function) DVI (Add function) Connects to DVI Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 80 - Record the R, G, B (GAIN, Cut) value of the color temperature before main board replacement. After replacing the main board, key in the recorded value. Copyright © 2022 LG Electronics Inc. All rights reserved. Only for training and service purposes.
Page 82 - [Remote Control] webOS5.0 (2020) vs. webOS6.0 (2021) vs. webOS22 - [Home screen] webOS6.0 (2021) vs. webOS22 - [Homeboard] webOS4.5 (2019) ~ webOS22 dashboard supported products - WebOS22 new features & usability Copyright © 2022 LG Electronics. Inc. All rights reserved. Only for training and service purposes.
Page 83 Region Regio -/LIST changed to GUIDE/- General External input Settings Remote Control TV Icon printed Screen ratio (Netflix, Amazon, etc.) (Netflix, Amazon etc.) Screen ratio Copyright © 2022 LG Electronics. Inc. All rights reserved. Only for training and service purposes.
Page 84 - There is not much useful content in the top category. Added the category list editing function → The order of the top/ bottom of the list has been changed Copyright © 2022 LG Electronics. Inc. All rights reserved. Only for training and service purposes.
Page 85 [Homeboard] List of LG products that can be registered on webOS4.5 ~ webOS22 Home Dashboard * Push Compatibility Products notification webOS 4.5 (2019) webOS 5.0 (2020) 2021 webOS 6.0 2022 webOS22 supported Refrigerator Available after SW update Wine refrigerator in March, 2022...
Page 86 : You can watch a workout video on the main screen and observe yourself exercising using the camera app on the other screen at the same time. ■ Room to Room Share (Screen link): After connecting your LG TVs at home, you can watch the video that was only connected to the set-top box in the living room with the TV in your room.
Page 87 - It provides not only total TV screen time, but also daily/ weekly - Even if your child presses the remote control mistakenly, the screen time for each app. volume won’t go above 60. Copyright © 2022 LG Electronics. Inc. All rights reserved. Only for training and service purposes.
Page 88 Standby Mode: Voice recognition available Back Here is the latest trending content. Background Mode Voice recognition : Hi LG, what is trending now? when the background mode is over Standby Q1. How much electricity does my TV consume in Background Mode or...
Page 89 “ Send Screen” available TV : Z2, G2, C2, QNED99/95 function? “ Get Screen” available TV : All LG TV models launched in 2022 During the screen transmission process, the original image is compressed and then data is transmitted through a wireless network.
Page 90 ● ● ○ Q5. Screen Saver automatically starts when no movement is detected for 30 Gallery ● minutes while watching videos using Multi View, (OLED) Copyright © 2022 LG Electronics. Inc. All rights reserved. Only for training and service purposes.
Page 91 TV are on the same network Live TV / Switch input - Content search is always supported. * Supports webOS4.5 or higher version Copyright © 2022 LG Electronics. Inc. All rights reserved. Only for training and service purposes.
Page 92 - Receive notifications environments. - Turn off screen - Slide show speed - Screen on time setting - Enable Illuminance sensor Copyright © 2022 LG Electronics. Inc. All rights reserved. Only for training and service purposes.
Page 93 Connecting device Device type Select input terminal Select STB operator or manufacturer (If not in the list, search and select)  Test remote control operation (Follow the guideline on the screen)  Completed Copyright © 2022 LG Electronics. Inc. All rights reserved. Only for training and service purposes.
Page 94: Tv Remote Control
• When controlling STB using the TV remote control connected to Sender TV, the Room-to-Room share function is disconnected. The sender TV screen turns on and it starts to work as a usual TV. Copyright © 2022 LG Electronics. Inc. All rights reserved. Only for training and service purposes.
Page 95 - Place both ends (one or two) of the IR Blaster in front of the external device remote control receiver (usually located in front of the device). Customer Service Guide Copyright © 2022 LG Electronics. Inc. All rights reserved. Only for training and service purposes.
Page 96 ※ When [Turn on the TV using Wi-Fi] is OFF, there may be restrictions on other functions. -Turning on the TV on ThinQ App / AirPlay / Youtube, etc Copyright © 2022 LG Electronics. Inc. All rights reserved. Only for training and service purposes.
Page 97 If you want to change the settings of the connected external device, please change the settings on the TV to which the external device is connected after exiting the room-to-room function. (mirroring). Copyright © 2022 LG Electronics. Inc. All rights reserved. Only for training and service purposes.
Page 98: Split Screen Mode
Live TV PIP mode Screenshare(Miracast) ※ Not applicable to China/ Hong Kong Camera products App 1 Customer Service Screenshare(Miracast) HDMI Guide App 2 Camera Gallery Spotify Copyright © 2022 LG Electronics. Inc. All rights reserved. Only for training and service purposes.
Page 99 XXNANO76 & its derivative model Name XXNANO75 & its derivative model XXUQ91 & its derivative model Guide XXUQ90 & its derivative model XXUQ80 & its derivative model Copyright © 2022 LG Electronics. Inc. All rights reserved. Only for training and service purposes.
Page 100 2) Turning off the high frame mode Dolby TrueHD audio signal 3) Setting the output resolution to 4K resolution or lower, 4) After setting the audio signal to PCM or AC3 Copyright © 2022 LG Electronics. Inc. All rights reserved. Only for training and service purposes.
Page 101 8K, or Dolby MAT/Dolby 3) Setting the output resolution to 4K resolution or TrueHD audio signal ON lower, 4) Setting the audio signal to Dolby Digital or AC3 Copyright © 2022 LG Electronics. Inc. All rights reserved. Only for training and service purposes.
Page 102 Dolby MAT audio signal Service Audio game controller settings, you can try again after setting the audio signal to Dolby TrueHD audio signal Guide Dolby Digital or AC3. Copyright © 2022 LG Electronics. Inc. All rights reserved. Only for training and service purposes.

This manual is also suitable for:

55lx1q series

LG 48LX1Q Series Service Manual

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Summary of Contents for LG 48LX1Q Series

Page 3: Safety Precautions

Page 4: Servicing Precautions

Page 6: Specification

Page 14: Block Diagram

Page 15: Exploded View

Page 32: Troubleshooting Guide

Page 39: Power Error

Page 44: Function Error

Page 73: Checking Method

Page 94: Tv Remote Control

Page 98: Split Screen Mode

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LG 48LX1Q Series Service Manual

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Summary of Contents for LG 48LX1Q Series

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Table of Contents