LG LHB976 Service Manual page 103

MAIN SET ONE POINT REPAIR GUIDE
When you turn on your set, it will display "PLEASE WAIT" on front panel, and it will not boot-up
normally.
1-3-8. IC500 (MPEG IC)
1-3-8-1. Solution
Replace IC500 on MAIN board.
1-3-8-2. How to troubleshoot (Countermeasure)
1) Please Check 1.2 V.
Please Check 3.3 V.
Please Check 1.5 V.
Please Check RESET
Please check the frequency of 27 MHz crystal (X500).
2) If it doesn't work even though 1.2 V, 1.5 V, 3.3 V power and RESET are no problem,
IC500 BCM7633 could have problem.
3) If RESET isn't high, you may need to replace IC101.
4) After changing it, if the set is still no booting, check main board refer to item 1-3-9.
1-3-8-3. Service hint (Any picture / Remark)
X500
IC506
< MAIN board top view >
2-88
IC503
IC500
IC502