LG NP8540 - Led

3-18
ELECTRICAL TROUBLESHOOTING GUIDE
3. LED
LED doesn’t blinking
Cable connection is OK?
(CN101, 400, 300, 301)
3.6 V load on L106?
Check the IC103
Pin15, 16, 17, 18 signal.
Connect the cable correctly or replace it.
Check power circuit troubleshooting.
Replace IC103.
Replace LD400, 401, 404.
YES
YES
YES
YES
NO
NO
NO