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Established

date

Standard Repair Process Detail Technical Manual

Revised

date

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

Only for training and service purposes.

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LG OLED55C3 Series Specifications

General