LG OLED77C3 Series User Manual

Contents of Standard Repair Process Detail Technical Manual
No. Error symptom Content Page Remarks
8
B. Power error_ No power
Check front display LED A8
9 Check power input Voltage & Main ST-BY 3.5V A9
10
B. Power error_Off
(when on/off, while viewing)
POWER OFF MODE checking method A10
11
C. Audio error_ No audio/Normal
video
Checking method in menu when there is no audio A11
12
Voltage and speaker checking method when there is
no audio
A12
13
D. Function error
Remote control operation checking method A13
14 Motion Remote operation checking method A14
15 Check Voice Recognition Function activation A15
16
E. Etc
How to use the Service remote control A18-A20
17 Check items after Main B/D replacement A21
Continued from previous page
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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