Is there a simple way to test the functionality of an Omega voltage stabilizer, the one used with the Super Chromega D Dichroic II and the 412-021 power supply ? The Super Chromega head works fine when plugged directly into the power supply. However, when plugged into the power supply via the 404-841 voltage stabilizer, the main lamp in the head will NOT turn on. The small lamp illuminating the control panel does light. Is the voltage stabilizer bad ? Anything I can/shouild check before pitching it ?

Thanks for guidance.