I have having a problem with my Sony SL-HF750 Betamax deck. I am getting dropouts that look like comet streaks on playback of some tapes. I have cleand the head and tape path, but no luck.

I am starting to think that maybe the head is worn. Any idea on what may be the issue or test I can do to confirm it is the heads? Are heads for these decks even still available? Any suggestion for repair service?

The deck is in good condition otherwise so I would like to get it working.

I have not posted on Videokarma in a while, but I love this place.

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Do you have an oscilloscope and know where to find the head amplifier RF test point to look at the signal coming off the v1deo heads?

I doubt new heads are available.

Do you have an oscilloscope and know where to find the head amplifier RF test point to look at the signal coming off the v1deo heads?

I doubt new heads are available.

I have a scope. Not sure where the TP is. Maybe I can find an online service manual.