Amiga 1200 does not work

[paul1981]

Have you tried reseating the roms?

[paul1981]

I have open the amiga but I could not see any problem.

What you mean "reseating". ?

switching them ?

It means to remove and then re-install... To 're-seat', which in affect will re-establish a good electrical connection of the rom chip pins in the rom socket.

[paul1981]

Just prise the roms out slightly with a chunky flat blade screwdriver and push down on them again firmly into the socket. Be very careful though. It is more likely to be failing caps though or power supply.