Atari 2600 Hard to Move Down

[landsharkzero]

I just fixed a light sixer that wasn't functioning by replacing the TIA and RIOT. It now works but you have to push down very hard on the joystick for it to actually move down. This is on the left side only. If I replace the PIA, do you think that might fix the problem or is it maybe the actual port itself? Thanks.

Edited November 5, 2013 by landsharkzero

[landsharkzero]

_{Disregard.. I just replaced the PIA and now it works fine.}