LG BD550 Service Manual page 87

ONE POINT REPAIR INSTRUCTION
When you turn on your BD-P, it will display "Hello" or "Please wait" message con-
tinuously on front panel, and it will not boot-up normally
3-2. X501, IC500
3-2-1. Solution
replace X501, ic500 on main board.
3-2-2. How to troubleshoot (Countermeasure)
1) Please check the soldering status of 27Mhz crystal (X501).
2) Please check the frequency of 27Mhz crystal (X501).
3) if the crystal doesn't oscillate, replace X501.
4) after changing it, if the set is still not booting, check MPeG ic(ic500).
3-2-3. Service hint (Any picture / Remark)
X501
IC500
< Main board top view >
3-72
2010