LG BPM55 Service Manual page 47

NO BOOTING WHEN YOU TURN THE UNIT ON
When you turn on your set, it will blank/ no displaying Main Menu on Television/ Monitor,
and it will not boot-up.
3-6. IC602 (NAND FLASH MEMORY)
3-6-1. Solution
Replace IC602 on main board.
3-6-2. How to troubleshoot (Countermeasure)
1) Please check physical status of IC602 on your eyes.
2) Check the Vcc (3.3 V) of IC602
and if it's normal please replace IC602. (Please make sure IC602 has proper program.)
3) After changing it, if the set is still not booting:
- Check DDR IC (IC601) refer to item 3-7.
- Check MPEG IC (IC501) refer to item 3-8.
3-6-3. Service hint (Any picture / Remark)
ONE POINT REPAIR GUIDE
< Main board top view >
3-34
IC602
IC 602