SP1200 back panel very hot + metronome issues

Just got an original E-Mu SP1200 (7030 version) and have two questions:

The area around where the power supply is on my SP1200's back panel is very hot after only an hour or so of use. Is this normal or should I be worried?

I can't get the metronome to sound. I've set it to 1/4 and then go into record mode but hear nothing other than the drum sounds through the mix out. I thought the answer might be to use the seperate met/click out, but this seems to disable the mix out and is permanently on full volume (the met volume knob does nothing). Can anyone help? Or, god forbid, is there a problem with my SP?

Thanks in advance.