If your TV has a composite video input (RCA cable jacks) it will work. It has nothing to do with "so low PS 1 signal". That doesn't even make sense.
1) Kind of a no-brainer, but are you selecting the proper input on the TV? Make sure you select "Composite" or "AV1" or whichever it is labeled as.
2) Does your TV have a composite video input? Or is it component? Composite has a single yellow plug for video and two stereo red and white for audio. Component has 3 video inputs that are red, green, and blue + the stereo white and red audio cables. If your TV has component and not composite it may not work.
Here's a shot of a TV with both inputs. The highlighted inputs are composite, the ones next to it are component. Make sure you're plugging into the right inputs.
If you do have composite and it doesn't work then maybe your TV's composite inputs are toast. That can happen. What kind of TV brand/model do you have anyway?