Can I put a 49 inch tv main board into a 55 inch tv

[tahirmahmood1108]

My motherboard or main board in 55 inch LG has packed up really hard to find a replacement. Could I put a 49 inch main board of the same model tv number into the 55 inch LG tv

 

[americanaudiophile]

Only if the main boards have the same part number. They would have to be identical which is possible.