Regarding my shema, I already have two earths:
A. One coming from the AC. The wire's going to the wall (blue and brown is a part of the main wire, then yellow/green is earth), that I hooked to the side of the cab.
B. Another one from the noise filter that I hooked to a screw that holds the Fuse not so far, but maybe is it more effective if I hook it to any metal part related to the cab since the wood is maybe canceling it (btw, I don't know if it's an earth or a gnd, I don't know the difference between both).
I have some interferences on my monitor and before checking something relative to the chassis, I'd like to try to add the earth to the PSU since there is none (there is a slot/screw for that earth that you can see on the pic#4 but I didn't represented it on the shema since it's not in use for the moment).
Can I try to take the one coming from the noise filter off and see what's happend. Also, can I try to add one to the PSU without any risk? Maybe three earths will be too much? Thanks!
A. One coming from the AC. The wire's going to the wall (blue and brown is a part of the main wire, then yellow/green is earth), that I hooked to the side of the cab.
B. Another one from the noise filter that I hooked to a screw that holds the Fuse not so far, but maybe is it more effective if I hook it to any metal part related to the cab since the wood is maybe canceling it (btw, I don't know if it's an earth or a gnd, I don't know the difference between both).
I have some interferences on my monitor and before checking something relative to the chassis, I'd like to try to add the earth to the PSU since there is none (there is a slot/screw for that earth that you can see on the pic#4 but I didn't represented it on the shema since it's not in use for the moment).
Can I try to take the one coming from the noise filter off and see what's happend. Also, can I try to add one to the PSU without any risk? Maybe three earths will be too much? Thanks!