killdozzer

killdozzer

Audioholic Samurai
That's the exact same model/cartridge I have and either the tracking is off or the cartridge is not mounted correctly on the head shell. Adjusting the tracking force must be done when that table is level. If he tried adjusting the tracking before leveling the table, all bets are off. Anothet thing to look at is to make sure the cueing mechanism is fully down when he lowers the arm to the record.
Excellent! That's another thing we didn't check.
 
ATLAudio

ATLAudio

Senior Audioholic
I have a Pro-Ject RPM 1.3 and just leave the anti-s at the middle position, and kept moving the weight out until it went away. It was skipping the same. If a record is skipping towards the end, it's typically anti-s, but there's only so many settings.
 
KenM10759

KenM10759

Audioholic Ninja
I have a Pro-Ject RPM 1.3 and just leave the anti-s at the middle position, and kept moving the weight out until it went away. It was skipping the same. If a record is skipping towards the end, it's typically anti-s, but there's only so many settings.
What? I don't understand that. Moving the weight changes tracking force. Every cartridge needs to be within the range recommended by the manufacturer of the cartridge. Your Pro-Ject RPM (1 or 3?) came with a basic yet usable tracking force setting device. Have you used it?
 
ATLAudio

ATLAudio

Senior Audioholic
What? I don't understand that. Moving the weight changes tracking force. Every cartridge needs to be within the range recommended by the manufacturer of the cartridge. Your Pro-Ject RPM (1 or 3?) came with a basic yet usable tracking force setting device. Have you used it?
I don’t have that device, bought used. Upgraded cartridge, so trial and error. Plays smooth as silk.

Pro-Ject 1.3 rpm
 
KenM10759

KenM10759

Audioholic Ninja
Grant, I have an RPM1 and can't find any reference to a 1.3, so where did that model number come from or what's the difference between them?

Mine came with a Sumiko Pearl cartridge, I've changed to an Ortofon 2M Red when my wife accidentally trashed the Sumiko.
 
killdozzer

killdozzer

Audioholic Samurai
Things getting complicated, I'm afraid.

He did everything by the book or so it seems. He even use two separate level gauges to set the TT straight.

As @TLS Guy said, the tone arm balance was done at zero.

Arm was fitted up front by the manufacturer, so he didn't change anything.

He was trying to asses (bare eye, I'm afraid) that the tone arm is parallel to the record when playing.

All the records skip back i.e. repeat a part of the song.

I will say that we're missing the "overhang" step, but how is this adjusted? I understood what it is (even downloaded all the instructions and protractor calculators from vinylengine), but I don't see a way to change it.

@3db is this adjustable? I'm asking you since you said you have the same model.
 
lovinthehd

lovinthehd

Audioholic Jedi
Things getting complicated, I'm afraid.

He did everything by the book or so it seems. He even use two separate level gauges to set the TT straight.

As @TLS Guy said, the tone arm balance was done at zero.

Arm was fitted up front by the manufacturer, so he didn't change anything.

He was trying to asses (bare eye, I'm afraid) that the tone arm is parallel to the record when playing.

All the records skip back i.e. repeat a part of the song.

I will say that we're missing the "overhang" step, but how is this adjusted? I understood what it is (even downloaded all the instructions and protractor calculators from vinylengine), but I don't see a way to change it.

@3db is this adjustable? I'm asking you since you said you have the same model.
So this happens with every LP? Or just select LPs? Always in the middle?
 
killdozzer

killdozzer

Audioholic Samurai
So this happens with every LP? Or just select LPs? Always in the middle?
Always from the middle on to the center. It gets worse closer to the end of the record. It is almost all records, but it is pronounced with the long lasting ones.
 
lovinthehd

lovinthehd

Audioholic Jedi
Always from the middle on to the center. It gets worse closer to the end of the record. It is almost all records, but it is pronounced with the long lasting ones.
Never saw an answer on particularly what tracking force he is using. What happens if he changes anti-skating force, or even disengages it?

Define long lasting LPs might help.
 
killdozzer

killdozzer

Audioholic Samurai
Never saw an answer on particularly what tracking force he is using. What happens if he changes anti-skating force, or even disengages it?

Define long lasting LPs might help.
Approaching 30min per side or slightly over.

I don't know the exact number his anti-skating is set to. It is the second ring (this TT having the small weight hanging by a thread).
 
Mikado463

Mikado463

Audioholic Spartan
Define long lasting LPs might help.
wondering the same thing, the middle of the record is the middle of the record regardless of how much music is on it.

Based on the table being level I can only think of 3 things....... cartridge issue(mounting or defective)..least likely

Too light of tracking force

anti-skate not set to correspond with tracking force
 
mtrycrafts

mtrycrafts

Seriously, I have no life.
.....
He was trying to asses (bare eye, I'm afraid) that the tone arm is parallel to the record when playing.
...
I think the cartridge needs to be tangent, 90 deg with the arc the arm is making from the outer to the inner groove, not parallel.

And if I understand, the skipping is worse towards the inner grooves, it may be too much anti skating, pulling back to the center? Or, even a hangup perhaps of that string and mechanism?
 
Mikado463

Mikado463

Audioholic Spartan
thinking about this middle of the Lp thing, has he confirmed proper cart alignment ?
 
killdozzer

killdozzer

Audioholic Samurai
wondering the same thing, the middle of the record is the middle of the record regardless of how much music is on it.

Based on the table being level I can only think of 3 things....... cartridge issue(mounting or defective)..least likely

Too light of tracking force

anti-skate not set to correspond with tracking force
It is set according to the manual. The comment about the middle of the record makes sense to me. He thinks grooves might be more "shallow" on longer LP's. I think that's just guessing.


I think the cartridge needs to be tangent, 90 deg with the arc the arm is making from the outer to the inner groove, not parallel.

And if I understand, the skipping is worse towards the inner grooves, it may be too much anti skating, pulling back to the center? Or, even a hangup perhaps of that string and mechanism?
I was thinking about the overall height of the tone arm being parallel when cue is down, not bowing down or pointing up.

If it's repeating a part of the song I think the needle is being pulled to the outer rim, not pulling to the center.
 
lovinthehd

lovinthehd

Audioholic Jedi
Also experiment with higher tracking force (whatever it was set to).
 
mtrycrafts

mtrycrafts

Seriously, I have no life.
...

If it's repeating a part of the song I think the needle is being pulled to the outer rim, not pulling to the center.
Yes, but you mentioned it is worse towards the inner grooves. So, the excess anti-skating force is pulling it back where this force is null and the needle plays once again. But, that is a hunch on my part but would be logical.
Increasing tracking force a little is not dangerous, like a 1/2 gram perhaps?
 
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