Hi Gentlemen.I received a C-100ff. I'm a little worried because after initial inspection it turns out that some psycho dickhead has tampered with it.Torn out,removed the heatsink mount of the tuner board.I have no idea why.Doesn't work in stereo left channel when listening to the radio.Doesn't work pivoting VU indicators when listening to the radio and cassettes.When searching for radio stations the VU indicator reacts.Both decks somehow work reasonably. There was an attempt to repair something in the cassette door.Not good. A couple of holes in the case for the mounting screws are damaged. Overall everything looks good...I guess. Where to start here? Do you have any advice on what to watch out for ? What to pay special attention to ?