I have a 1034gsx disk with a destroyed ROM chip?

[mik1131020]

Hello. I have a 1034gsx disk with a destroyed ROM chip. I've heard that you can pick up boards with similar firmware and read data from the disk. How do I pick up the boards?
thanks for the help

 

[pclab]

Try to match the PCB model and also letter on the PCB. May it could work

 

[mik1131020]

which letter should I find?