3. USB NO DETECT
When USB insert, USB no detect on the unit.
3-1. Solution
Replace IC305.
3-2. How to troubleshoot (Countermeasure)
1) Please check IC305.
Pin3 : 5 V
2) If it is not OK, replace IC305.
3-3. Service hint (Any picture / Remark)
ONE POINT REPAIR GUIDE
< FRONT board top view >
IC305
3-4