Sound From The Speaker - LG NP8540 Service Manual

2. NO SOUND FROM THE SPEAKER
2-1. IC700 (NO 18 VA / 3.3 V)
2-1-1. Solution
Replace IC700 on main board.
2-1-2. How to troubleshoot (Countermeasure)
1) Please check 18 VA(PVDD) of C709, C726 and 3.3 V(DVDD) of L903.
2) If 18 VA is abnormal, follow the stage 1-1 at the previous page.
3) If 3.3 V is abnormal, follow the stage 3-2 at the next page.
4) If 18 VA, 3.3 V are OK but no sound from the speaker, replace IC700.
5) When you followed above step but it doesn't work, check the around parts. (RLC)
2-1-3. Service hint (Any picture / Remark)
ONE POINT REPAIR GUIDE
IC700 IC700
< Main board top view >
3-4