LG NP7550 - LGD955 Mobile Disassembly

3-2
ONE POINT REPAIR GUIDE
1-3. Service hint (Any picture/ Remark)
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.
< Main board bottom view >
L501
L501
IC902
IC902
< Main board top view >
X501
X501