3-12
Copyright © 2017 LG Electronics Inc. All rights reserved.
Only for training and service purposes.
ONE POINT REPAIR GUIDE
NO SOUND
2-5. IC383 (No DAC_1.2V)
2-5-1. Solution
Replace MAIN board.
2-5-2. How to troubleshoot (Countermeasure)
1) Please check DAC_3.3V of IC383 pin1.
2) If DAC_3.3V is OK, but DAC_1.2V is abnormal IC383 pin5 (VOUT), replace MAIN board.
2-5-3. Service hint (Any picture / Remark)
< MAIN board top view >
IC383