One Point Repair Guide; Power Problem - LG NP7550 Service Manual

1. NO POWER PROBLEM
No power problem occurs when you power on the main set.
1-1. Solution
Check and replace IC902 on main board.
1-2. How to troubleshoot (Countermeasure)
1) Check 3.4 VA (L501).
  L501 is not 3.4 VA, replace IC902.
2) Check X501 (Crystal).
  If it does not oscillate, replace X501.
1-3. Service hint (Any picture/ Remark)
L501 L501

ONE POINT REPAIR GUIDE

< Main board bottom view >
X501 X501
< Main board top view >
IC902 IC902
3-2