LG 55UR7800PSB User Manual

ENGLISH_index
Safety and Reference
OWNER’S MANUAL
www.lg.com
Copyright © 2023 LG Electronics Inc.
All Rights Reserved.
LED TV*
Please read this manual carefully
before operating your set and retain it
for future reference.
* LG LED TV applies LCD screen with LED backlights.
The model and serial number of the product are
located on the back and on one side of the product.
Record them below in case you ever need service.
Model
Serial No.
43QNED75SRA
50QNED75SRA
50QNED80SRA
55QNED75SRA
55QNED80SRA
65QNED75SRA
65QNED80SRA
65QNED85SRA
75QNED75SRA
75QNED80SRA
75QNED85SRA
86QNED80SRA
86QNED85SRA
43NANO77SRA
50NANO77SRA
55NANO77SRA
65NANO77SRA
70NANO77SRA
75NANO77SRA
86NANO77SRA
43UR7800PSB
43UR8750PSA
50UR7800PSB
50UR8750PSA
50UR9050PSJ
55UR7800PSB
55UR8750PSA
55UR9050PSJ
65UR7800PSB
65UR8750PSA
65UR9050PSJ
70UR7800PSB
70UR8750PSA
75UR7800PSB
75UR8750PSA
75UR9050PSJ
86UR8750PSA
32LR650BPSA
*MFL719464342305REV03*

LG 55UR7800PSB Specifications

General

Screen Size	55 inches
Display Type	LED
HDR Support	Yes
Smart TV	Yes
Operating System	webOS
Audio Output	20W
HDMI Ports	3
USB Ports	2
Refresh Rate	60Hz
AI Brightness Control	Yes
Bluetooth	Yes
Wi-Fi	Yes
Resolution	3840 x 2160 (4K UHD)
Processor	Quad Core Processor

Summary

Safety and Reference

Important Safety Instruction

Warning! Safety instructions

Securing TV to the Wall

Mounting to the Wall

Turning on the TV

Connections

HDMI Connection

Specifications

Troubleshooting

Remote Control Problems

Resolves issues with the TV remote control's functionality.

Image and Sound Issues

Addresses problems related to lack of picture or audio output.

Sudden Power Off

Provides solutions for unexpected television power interruptions.

Abnormal Display

Explains potential display anomalies and their causes.

Generated Sound

Regulatory

WARNING! (STABILITY HAZARD)

Crucial safety warning regarding TV stability and tip-over risks.

EXTERNAL CONTROL DEVICE SETUP

USB to Serial(RS-232C) converter with USB Cable

RS-232C(Serial) With RS-232C(Serial) Cable

Phone jack Type

Set ID

Communication Parameters

Command reference list

Provides a list of commands for external control.

Transmission / Receiving Protocol

KEY CODES