I know there was a thread related to the 500 turning on by itself independent of the switch but can't find it? Can anyone direct me? Also looking to replace the large caps. . Suggestions? Thanks!
The power caps are 12,000uf 120 volt 3” by 5.5”
if you want a nice upgrade Apex jr has some 33,000uf which I am using. Need to upgrade the bridge rectifier as well
the 500 uses a relay to turn on or off. The power switch runs through the front panel and powers on the relay circuit. There is a small transformer behind the meter panel to operate that system
power on and offf are controlled by transistors that may need replacing. A power outage ( external or internal) may activate the circuit and be your problem. A simple fix is a power strip with switch
please read the service manual as it describes this better and possible repairing it . The problem is in the meter board or power supply for it, no othe way to turn on or off than there