Ivc ~ ivc-871p ~ 1" video recorder service manual

[ppppenguin]

All cassette formats must be omega wrap. It would take a very warped mind to design a lacing mechanism to do alpha wrap. I think all cassette formats used a 180 degree wrap, certainly U-Matic, Betamax, VHS and their derivatives such as Betacam and M format.

The VPR80 was a very late C format VTR. It may be omega wrap but I can't see how you can get the same track layout as other C format machines which were alpha wrap.