LG XV-BD212 Service Manual page 51

When you turn on your set, it will display "PLEASE WAIT" on front panel, and it will not boot-up
normally.
3-9. MAIN Board
3-9-1. Solution
Replace MAIN board.
3-9-2. How to troubleshoot (Countermeasure)
1) Please remove IC500, IC502, IC503, and then check the Impedance between each signal
(DATA, ADDRESS, and so on.).
2) If there is some Impedance (a few Ω or infinite Ω) especially power source trace,
PCB via might be broken. You'd better change main board.
3-9-3. Service hint (Any picture / Remark)
ONE POINT REPAIR GUIDE
< MAIN board top view >
2-42
IC503
IC500
IC502