I had to take this apart because the red Stop button was stuck closed. 6 screws in the base and 6 more for the circuit board and the buttons appear. I loosened the button and screwed the circuit board back on and tested ALL the buttons to make sure they were OK. I put the base on and now the 6 and 9 buttons are tight. Loosened the circuit board screws and put back the base. It's ok now but I can't tighten the base completely. There's a crack where the pieces come together at the wires. If I tighten anything too much, some buttons will stick. I just don't like the open crack. Anyone have this problem? Bach man?? :)
Thanks