My MacBook recently developed a fault where everything works except the screen.

Tried all the pram settings and 2nd display etc and the results are still with no screen display.

Hence I took it to Apple Store and had it checked and was told it needs a new logic board.

Is there any advice on how to repair it outside Apple Store on the cheap or component failure?

Their prices are extortionate.

Any help is greatly appreciated.

Grover