The diode in question is a 1N4148W, you can put a 1N4148, normal with MOS-FET gate-control anode if this diode is bad "eye"
to the MOS-FET that is connected. I will upload the scheme for you to see.
(This diode only appears in source scheme)
Here you are: Luck, Eddy Saav
LG 32LN540B_MP (EAY62810301) _REV3.2 (130,812) Power.pdf [7.11mb]
LG 32LN540B_Fuente EAX64905001_ EAY62810301 rev 3.4.pdf [3.11MB]