LG OLED77C3 Series User Manual

Established
date
Standard Repair Process Detail Technical Manual
Revised
date
A9
Error
symptom
Content
Check power input voltage and ST-BY 7.8V
Power Check Sequence
1. AC input Check : 100~240Vac
2. PWR-ON Check : P201
- SET On : above 3V
- SET St-by : 0V
3. 12V Level Check : P201
- SET On : 12V
- SET St-by : 7.8V (swing between 7V to 10V)
4. DRV_ON Check : P201
- SET On : above 2.5V
- SET St-by : 0V
5. T-CON 23V Check : P251, P252
- SET On : above 23V
- SET St-by : 0V
6. T-CON 12V Check : P202
- SET On : above 12V
- SET St-by : 0V
All condition meets, Power Board OK.
SET
Model
Power P/N, Name
OLED77C3
EBR38495701, LGPS77C3-23OP
DC 12VM 라인 확인할 것
(ST-BY : 7.8V, Normal : 12V)
AC INPUT
P201
P251
P252
P202
A9
B. Power error _No power
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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