Make sure you in fact do have a Kenwood. But from the description (it breaking and no longer working) it sounds like it's definitely a Kenwood. But if you can peel back a label to discover it's actually made by someone else, it'll probably start working again.

Sorry, I've just had bad experience with Kenwood. Also, I've made a few really helpful replies in the past few minutes, I thought I needed a little joke one.

Bruno