LG S65T1-S Service Manual page 50

When you turn on your set, it will display "WELCOME" on front panel, and it will not boot-up normally.
2-7. IC501 (MPEG IC)
2-7-1. Solution
Replace IC501 on MAIN board.
2-7-2. How to troubleshoot (Countermeasure)
1) Please Check 1.2 V of C551 on MAIN board.
Please Check 3.3 V of C536 on MAIN board.
Please Check 1.5 V of C554 on MAIN board.
2) If it doesn't work even though IC151, IC156 are no problem,
IC501 MT8563 could have problem.
2-7-3. Service hint (Any picture / Remark)
ONE POINT REPAIR GUIDE
C536 (3.3 V) C536 (3.3 V)
< MAIN board bottom view >
2-35
C551 (1.2 V) C551 (1.2 V)
C554 (1.5 V) C554 (1.5 V)