LG OLED77C3 Series User Manual

B. Power error
Off when on, off while viewing, power auto on/off
Established
date
Revised date
Error
symptom
Standard Repair Process
8
* Please refer to the all cases which can be displayed on power off mode.
Action contents
Normal Code
Check the
Power & Power B/D
External device
External device
Normal Code
– Check the Settop Box CEC
- HDMI Setting > Check the Simplelink Menu
- Check the “TV On With Mobile” Menu
Normal Code
- Check the “Power On(Off) Timer” Menu
- Check the Input Signal ( No Signal >auto
power off after 15min
)
Normal Code
Normal Code
Need to Check SW
version(Last version) & Main B/D
Normal Code
Normal Code
– Check the Voice Recognition Settings
N/A
Check the
OLED Module ( BDP )
Check the
OLED Module ( Without BDP )
Check the
FFC Cable (T-con to Main)
Check the
Fan & Heat Plate
N/A
N/A
N/A
Normal Code
- N/A
Normal Code
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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