@viviennesiddik
It will be very difficult as you have to redesign the power board to work at 220V instead of 120V.
This would require more than 1 part to be changed.
As there is no service manual with a schematic available (at least I couldn't find any) it would be necessary to draw out the circuit by tracing out all the wiring on the existing board and then having to work out what needed to be changed.
It is easier to get a 220V-120V step down transformer to get the correct voltage necessary.