LG OLED77C3 Series User Manual

Contents of Standard Repair Process
No. Error symptom (High category) Error symptom (Mid category) Page Remarks
1
A. Video error
No video/Normal audio 1
2 No video/No audio 2
3 Picture broken/ Freezing 3
4 Color error 4
5
Vertical/Horizontal bar, residual image, light
spot, external device color error
5
6
B. Power error
No power 6
7
Off when on, off while viewing, power auto
on/off
7-8
9
C. Audio error
No audio/Normal video 9
10 Wrecked audio/discontinuation/noise 10
11
D. Function error
Remote control & Local switch checking 11
12 MR23 operating checking 12
13 Wifi operating checking 13
14 External device recognition error 14
15 Voice Recognition operation error 15
16 E. Noise Circuit noise, mechanical noise 17
17 F. Exterior error Exterior defect 18
F17 of all, Check whether there is SVC Bulletin in GSCS System for these model.
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LG OLED77C3 Series Specifications

General

Screen Size	77 inches
Display Technology	OLED
HDR	Dolby Vision, HDR10, HLG
Smart TV Platform	webOS
HDMI Ports	4
Audio Output	40W
Voice Assistant	Google Assistant, Amazon Alexa
Refresh Rate	120 Hz
Processor	α9 Gen6 AI Processor 4K
VRR	Yes
USB Ports	3
Resolution	3840 x 2160
Bluetooth	Yes
Wi-Fi	Yes