LG NP8340BM0 Service Manual page 35

ELECTRICAL TROUBLESHOOTING GUIDE
POWER SUPPLY ON MAIN BOARD
No 3.6 VA
Is the Vin 5.2 VA
supplied to IC804, L807?
Around the IC804 parts OK? (RLC)
Replace the IC804.
No 3.3 V
Is the Vin 19 VA
supplied to IC800, L800?
Around the IC800 parts OK? (RLC)
Replace the IC800.
YES
YES
YES
YES
YES
YES
NO
Check the IC805.
NO
Replace the weird one.
NO
NO
Replace the weird one.
3-16
Check the 19 V.