I can validate this whole-heartedly.
We just went through this problem and had to send the deck to Panasonic. The service tech. informed me that a head-cleaning tape just isn’t enough, especially with continued use of the size DVC-Pro cassette that fits in the VariCam. Evidently, oxide or particles builds up on all the surfaces on the tape path – not just the heads. He literally uses a tooth-pick to clean some of the smaller areas, replaces the rubber roller, etc. to give the deck a thorough cleaning.
Keep a log of cleanings, because depending on your level of use – this maintenance may need to be done every three-six months. It doesn’t help to just keep running the head-cleaning tape all the time because it just shortens the life of the heads without cleaning these other areas.
Our deck (AJ-HD1400p) has been working like a charm ever since it came back.
BTW – a local engineer had no idea how to clean this deck properly. His work was of no help, so I recommend sending it to Panasonic – and keeping tabs on them so your deck doesn’t just sit on the bench for a week until they get to it.
—
Tom Ervin