Just a guess here. You probably have ac input that is 110 volts ac. Probably need transformer to reduce voltage diode to convert to dc then capacitor to smooth out the waves. Most modern power supplies are solid state so they use switching to achieve a desired voltage.
Answers & Comments
Verified answer
Just a guess here. You probably have ac input that is 110 volts ac. Probably need transformer to reduce voltage diode to convert to dc then capacitor to smooth out the waves. Most modern power supplies are solid state so they use switching to achieve a desired voltage.