Question LG TV

[BillV0427]

I have a 43 inch LG TV with a cracked screen can I use the motherboard from that on a 40 inch LG TV what would happen if the part numbers are not the same

 

[rgd1101]

if you have a cracked screen why does the motherboard matter?

 

[BillV0427]

if you have a cracked screen why does the motherboard matter?

Because I have 2 tvs One with a bad motherboard and the other one has a cracked screen