LG OLED55C3 Series User Manual

Checking method:
1. Check the signal strength or check whether the screen is normal when the external device is connected.
2. After measuring each voltage from power supply, finally replace the MAIN BOARD.
Standard Repair Process Detail Technical Manual
TUNER checking part
A5
Established
date
Revised
date
Error
symptom
Content
A5
A. Video error_Video error, video lag/stop
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LG OLED55C3 Series Specifications

General

Display Type	OLED
Screen Size	55 inches
Smart TV	Yes
Operating System	webOS
HDMI Ports	4
USB Ports	3
Refresh Rate	120Hz
Processor	α9 Gen6 AI Processor 4K
ALLM	Yes
Audio Output	40W
Resolution	3840 x 2160 (4K)
HDR	HDR10, Dolby Vision, HLG
Wi-Fi	Yes
Bluetooth	Yes (5.0)
VRR	Yes
Dimensions (W x H x D)	1228 x 706 x 46.9 mm (without stand)