PSU Caps

"Yeah I know, stupid question"

When it comes to power deliver the dumbest questions are the ones you don’t ask

"What does the X2 mean"

X and Y rated caps are a special class of cap that can be safely used in the 120V/220V chain ... because they are self healing in the event of a failure

Their purpose is to dissipate RF and transients riding on the line by presenting a high impedance at those interfering frequencies and dissipating them

The X rated caps are meant to go between the HOT and Neutral and dissipate Common Mode noise

The Y rated caps are meant to be used between the Hot and the Safety Ground and from the Neutral to the Safety Ground and dissipate Normal or Differential noise

The 1 and 2 as in X1 or X2 designate the capacitors Maximum handling capacity ...

Remember that Maximum Capacity is a rating and not a challenge

Thanks Dave. I now understand and can safely replace some aging X2 caps with those of similar specs.

Regards,
Marvin

Hi - I'm contacting you about the Pioneer dvd-v7400 (can't figure how to do a PM here ). I bought a used one and am using a universal remote with it. I downloaded the User Manual but can't for the life of me figure out how to configure it for CD playback. When I insert a cd it just keeps flashing green indicating it's not recognizing the disc as a cd. Any help would be appreciated to get the unit working ( I do have a DAC but I just want to get it to play a CD for now) . Cheers, mike.