Hi to all,

Today when I energize my Micromaster 420, I see some strange characters that I had never seen. I could see ===== indication on the principal display and I couln´t see or operate any more like parameters, start my motor or something else.

I change the BOP (Basic Operator Panel) for other one, but the problem is the same,  I desambly my Micromaster to clean is electronic parts but nothing change.

Someone know what happen?

Thanks Mr.

The problem was in control circuit, I clean the control stage and then all work fine, thanks for your tip.