I know this is a gaming site, but I figure someone here may be able to help. The only site I see for this sort of thing is pretty dead.

I just got a Betamax VCR the other day. It's in great shape, with the only problem being skipping in video and audio during playback. I'm looking for help specific to Betamax, since head placement is a bit different on these. The model in question is a Sony SL-HF750. Where are the heads, how do I clean them, and what should I be wary of while cleaning?