5000m - when stopping the platter, it still moves a little (which makes noise)

Just drop the fader when you stop the motor…

Then there’s no noise

That is a great workaround, but a workaround is not a fix. Is the platter supposed to move like that? The fact that it doesn’t on my other SC5000M which leads me to believe there is something wrong with the motor of the unit.

If a Denon representative could confirm the platter is supposed to move like that, or confirm that it is a biproduct of using such motors i could rest assured its not a hardware issue and i don’t have to send my unit back (something i really don’t want to do).

Could it be a different stop time setting? The stop sound on the right player seems shorter.

However, the platter indeed dead stops physically on the right player. I would try and pull the platter of the left player and reseat it to see if that helps.

Both players have the minimum stop time, this was one of the first things that i checked. I have also reseated the platter on the left player but the problem persists.^

And yes, now that you mention in, the stop time of the right player really seems shorter. So could it be something iffy about the break mechanism on the left player, the problem with the platter moving counterclockwise might also be related to the break?

Weird stuff. Perhaps exchange left and right platter, but this would be a motor setting.

Would be nice to calibrate that via prefs.

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I understand what’s going on. I’m trying to find out why it matters to you so much in practice that it’s happening, especially since your right one seems to be the outlier. This is common for many direct drive turntable platters, though some of those afflicted don’t do it in practice because there’s a tonearm & cartridge applying resistance. The old Denon dn-hs5500 didn’t do this, but then you couldn’t even drag the platter for a pitch bend reliably on those, either. What are you doing that this slight wobble back and reverse scratch is messing up?

I appreciate someone finally acknowledging that it is weird. I tried changing the aluminium platters of the player and the left player still has the same behaviour.

It happens even when you rotate the platter around a little manually with no power, hold, and release, so I do not think any calibration of a motor or brake is going to eliminate it.

I already explained why, several times even.

Can we focus on acknowledging the actual problem and not “why it matters” to me that this problem exists? I’m not bringing this up to annoy you or anyone else, i just want confirmation if my unit is working as intended or not.

Sounds like just a matter of inconsistent functioning that is irking you and you just want them to work exactly the same on both. I can sympathize with that. As we’ve found with other aspects of the Prime products, there’s some wide manufacturing tolerances and QA stuff going on. As already mentioned, as well, there are other models of direct drive platters that do this. We’ll see what InMusic says, but I suspect they’re going to tell you to either exchange the units, just tell you to open up a ticket (generic response from most customer support depts), or explain that this wobble is a not-unusual anomaly that has little deleterious effect on actual DJing with the players. In the case of that last one, you’re probably going to still want to exchange one or both of the units to get two that at least do the same thing all the time. Being told it’s common isn’t going to lessen the bother of inconsistency. I also suspect you’re going to get two that do the wobble, though, and are unlikely to get another that does not.

Since you’ve already been removing the platters and swapping things, let’s try two other things:

Does removing the record and slip mat have any effect on the wobble (or lack of) on either unit?

If you tilt the unit that’s not wobbling back a little, say put some notecards or something under one of the feet so it’s obviously imbalanced, can it ever be made to wobble?

Don’t even bother running the motors to test this. Just manually move them around, hold, and release.

@Kafkatrap

Your red deck is ideally how the stop should work and so far you are the only one to produce a video of it. But that’s not to say that the other deck is defective. Now that you have an A & B, maybe someone from denon can chime in.

On a bike if you spin the front wheel and let it stop on it’s own, you will see it kickback the other way just like the deck you are talking about is doing. Most direct drive tts do the same thing.

Here’s an example of TT doing the same when pressing stop https://m.youtube.com/watch?v=PUpjql-Z5PI&list=PLw44C4qpmp6SsSVnbLC-bK11uZ1wXWLQK&index=66&t=0s

I think denon could eliminate the sound when the platter kicks back though.

Those of us who are used to it just cut the xfader out

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Yes. That’s how I used to do it on vinyl too

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I don’t think I’ve noticed with DVS (Serato, Stanton ST150, SL1200s)

I could be wrong though…recall bias

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Not in a way that won’t mess up other stuff. Use cue for that if that’s what you need.

Yea you’re right :wink:

Whenever I talk about programmers modelling platter dynamics remember this. lol

Thanks for your replies, now i guess i will just have to wait and hope a Denon representative can chime in on this.

Hi @Kafkatrap, the behavior in your video above is inherent of the motor itself. In fact, I’m very surprised to see that your right deck does not exhibit the same behavior. This behavior is known as “cogging” and is something we worked to minimize during the development of the product.

If this very limited “cogging” disrupts your mixing style, I would recommend the SC5000 with static platter.

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Ahh… the magnets.

Thanks for your reply. :slight_smile: Great to know that the unit is not faulty.

Can’t think of a better time to post this:

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