First, jump on Vinyl Engine, sign up and get the service manual. The on off switch is sticking. Not familiar with yours. I have a free 1209 with a sticky on off switch. I shelved it. Have a 1219 with a bad on off switch I broke while working on its motor. Did have a 1219 with a crabby on off switch. Stayed on like yours. I bent the lever then it would not come on. I don't recommend doing this. I did manage to get it just right and got it to work. I will suggest this. Pull the platter. I may have a c clamp holding it on. Hate those things. I take them and leave them off. Remove from wood base. Flip it over. You should notice a lever attached to the bottom of the arm. It's likely the grease has turned to glue. Move the arm and the lever should move when you move the arm towards the center. The lever should be free and move the on off switch when you move the arm. Forty years of grease does gum up the works. Had this issue on my 1219. Once regreased, it's been fine. My daily driver. Hope this helps. It's a starting point.