LG OLED77B3 Series User Manual

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1. Check the 21.5V and 12V voltage of Power B/D and T-Con B/D connector

2. If the result comes out ’NG, replace Power B/D. If it comes out ‘OK’, check if Main B/D and Module operate normally.

Note. 4 / 4

Note 4. How to measure Power B/D Module

Only for training and service purposes.

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