doesn't sound too bad. I assume that the warratny is out of the queston. I would suggest opening it up and hardwiring the hold switch so it is always off (unless you can fix it) and the headphone jack is probably a broken solder point. You could always buy a jack and replace it, depending on the problem or even just reattach the connection (you could switch it out for an 1/4" or something if you want to use those big DJ headphones)
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