LG 50UL3G Service Manual page 47

Power Check Sequence
1. AC input Check : SK100 (100~240Vac)
2. PWR-ON Check : Check Hole
- SET On : above 3V
- SET St-by : 0V
3. 13.2V DC Check :
- SET On : 13.2V
- SET St-by : 7.8V
4. MS Level Check : Check Hole
MS Level Range [V] LED On/Off
MS (0V) 0 ~ 0.25
MS (2V) 1.75 ~ 2.25 On (Home mode)
MS (3V) 2.75 ~ 3.25 On (Store Mode)
※ Home mode : General Customer
Store mode : use Store
5. LED voltage Check : P801, Pin 1-7
Picture Condition : VIVID (Back light 100)
272V, 410mA
Power Board Voltage / Current
Off
A12
P801
SK100 (AC input)
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MS
P201
PWR-ON
D201 (13.2V)
- Center Pin