LG OLED55CXAUA - Page 57

Established
date
Standard Repair Process Detail Technical Manual
Revised
date
A9
Error
symptom
Content
Check power input voltage and ST-BY 7.8V
B. Power error _No power
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
Power Board Voltage / Current
All condition meets, Power Board OK.
A9
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