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LG 49NANO85UNA User Manual

LG 49NANO85UNA
71 pages
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P/NO : MFL71703901 (2001-REV00)
CHASSIS : UAX2A
MODEL : 49NANO85UNA
LED TV
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
Copyright © 2020 LG Electronics Inc. All rights reserved. Only training and service purposes.
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.
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LG 49NANO85UNA Specifications

General IconGeneral
Screen Typeled
Colorblack
Wall Mount200mm x 200mm
Featureshdr dynamic tone mapping, ultra luminance, double step noise reduction, sharpness enhancer, nano color, advanced color enhancer, true color accuracy
Tunerdigital
Screen Size48.5 inches, 49 inches
Screen Technologynanocell led
Resolution4k (2160p)
Refresh Rate120hz
Closed Captioningyes
Motion Enhancementtrumotion 240
HDRyes
HDR Formathdr 10, hybrid log-gamma (hlg), dolby vision
Built-In Speakerstrue, downward firing
Surround Sounddolby atmos, ultra surround
Speakers Output20 watts
HDMI Ports4
HDMI 2.1 Ports4
HDMI ARC Portsyes
USB Ports3
USB 2.0 Ports3
Ethernetyes
RF Antennayes
Bluetoothtrue, 5.0
Networkbuilt-in wi-fi, ethernet
Headphones Outputno
Digital Optical Audio Outputs1
Analog Audio Outputs0
Component Video Inputs0
Composite Video Inputs0
DVI0
SmartTVwebos
Streaming Servicesapple tv+, paramount+, crackle, disney+, fandango, google play movies & tv, hulu, netflix, pandora, peacock, prime video, redbox, showtime, sirius, starz, sling tv, spotify, twitch, vudu, youtube, youtube tv, iheartradio
Smart Applicationsapple homekit, google assistant, amazon alexa
Other Devices Connectionmobile to tv
Voice Assistantamazon alexa, google assistant
Remote Controlmagic
3Dno
Power Consumption127 kilowatt hours
Depth with Stand9.1 inches
Height with Stand27.4 inches
Width with Stand43.1 inches
Net Weight with Stand31.7 pounds
Depth without Stand2.5 inches
Height without Stand25.2 inches
Net Weight without Stand31.3 pounds

Summary

Safety Precautions

Important Safety Notice

Key safety-related characteristics of chassis parts identified in the Exploded View.

Servicing Precautions

Software Update Procedures

Assembly and Disassembly Guide (Set)

Assembly and Disassembly Guide (Module)

Troubleshooting Guide

Troubleshooting Video Errors: No Video/Normal Audio

Flowchart for diagnosing and resolving no video or normal audio issues.

Troubleshooting Video Errors: No Video/No Audio

Flowchart for diagnosing and resolving no video or no audio issues.

Troubleshooting Video Errors: Picture Broken/Freezing

Flowchart for diagnosing and resolving picture broken or freezing issues.

Troubleshooting Video Errors: Color Error

Flowchart for diagnosing and resolving color errors in video output.

Troubleshooting Video Errors: Bars, Image Issues

Flowcharts for diagnosing bars, residual image, and external device errors.

Troubleshooting Power Errors: No Power

Flowchart for diagnosing and resolving no power issues.

Troubleshooting Power Errors: Auto Power Off

Flowchart for diagnosing and resolving auto power off issues.

Troubleshooting Audio Errors: No Audio/Normal Video

Flowchart for diagnosing and resolving no audio or normal video issues.

Troubleshooting Audio Errors: Discontinuation/Noise

Flowchart for diagnosing and resolving audio discontinuation or noise issues.

Troubleshooting Function Errors: Remote Control

Flowchart for diagnosing and resolving remote control operation issues.

Troubleshooting Function Errors: MR20 Remote

Flowchart for diagnosing and resolving MR20 (Magic Remote) operation issues.

Troubleshooting Function Errors: WiFi

Flowchart for diagnosing and resolving WiFi operation issues.

Troubleshooting Function Errors: Device Recognition

Flowchart for diagnosing external device recognition errors.

Troubleshooting Noise Issues

Guide for identifying and resolving circuit noise and mechanical noise issues.

Power Input Voltage and ST-BY Check

Procedure for checking power input voltage, ST-BY, and LED voltage on the Power Board.

Voltage and Speaker Check Procedure

Steps to check voltage and speaker connection/functionality when there is no audio.

Remote Control Operation Check

Procedure for checking IR cable condition, standby voltage, and Pre-Amp signal.

Magic Remote and WiFi Check

Procedure for checking BT/Wifi cable condition and 3.5V on the terminal.

Post Main Board Replacement Checks

Steps to check model number, serial number, and white balance after main board replacement.

Main Board and T-CON Voltage Check Points

Identifies critical voltage check points on the Main Board and T-CON.

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