LG OLED55C3 Series

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 22V Check : P251
- SET On : above 22V
- SET St-by : 0V
6. T-CON 12V Check : P202
- SET On : above 12V
- SET St-by : 0V
All condition meets, Power Board OK.
AC INPUT
P201
P251
P202
SET
Model
Power P/N, Name
OLED55C3
EAY65904033, LGP55C3-23OP
DC 12VM Line Check (ST-
BY : 7.8V, Normal : 12V)
B. Power error _No power
A9
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