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How to calibrate the needle pressure of a philips AF 829 turntable?I tried to balance the arm and the contra weight in order to calibrate thereafter the antiskating and the needle pressure. Balancing the arm with the contra weight is done including the element with the needle. When calibrating the antiskating, the arm moves to the starting position, and that seems normal to me in order to compensate. But when I press play at 33 rpm, the arm does not go to the beginning of the record but to the end and returns immediately. Is there something I am doing wrong?

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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djproaudio
  • 515 Answers

SOURCE: sl-dd33 turntable

If your needle just started to skip across the LP, then that means your stylus is damaged/worn and needs to be replaced. It's very hard to see the diamond tip on the stylus, and it might not even be there at all. So checking it might not yield any results. This is what happens when the needle is worn. It will skip across the record.

- OPTiC
Turntable Technician
www.1200s.com

Posted on Sep 08, 2008

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  • 5 Answers

SOURCE: Optimus lab 1100 Turntable won't turn!

The mechanics in your arm postion is throwing the switch. A mechanical postion switch has sliped out of postion, a arm from the toner arm post has moved to an encorrect postion, or if your turntable has a multi-album play abilty your 'next to play record' post postion sensor switch is out of postion. Last or first is your belt could fool ya. Your belt may have a weak spot on it in turn no friction underload.

Posted on Sep 18, 2008

djproaudio
  • 515 Answers

SOURCE: Tone arm skipping/not moving on especially at end of record

The issue is with your tonearm, and not your tracking. You probably have slight damage to the tonearm bearings, which will cause this. There are 2 options... you can try to adjust the pivoting screw at the top of the tonearm ... However, WE DO NOT RECOMMEND THIS, because once you mess with this screw, it's EXTREMELY difficult to get it back to the correct setting, as this screw is machine calibrated at the factory. So, we only recommend this when you have no other choice, or it's an emergency (the middle of a set).

You can view a video on how to do this, by going here - http://djprolab.com

Eventually, your going to have to have your Technics Tonearm replaced. This should be done by a professional, as it is not an easy replacement.

- OPTiC
The Technics Expert
Technics Repair
DJ Equipment

Posted on Dec 30, 2008

johncaman
  • 201 Answers

SOURCE: Turntable will not turn (spin)

It would appear this is a belt drive turntable - here's a link to a site where you can order a replacement, although you may be able to find a cheaper one.

http://www.elexatelier.com/panasonic.htm

Hope this helps!

Posted on Mar 26, 2009

  • 1 Answer

SOURCE: won't start

I had the same problem with the arm constantly starting and stopping, and the suggestion above works. Despite, I was a little confused on how to do it. Here's what I did in detail:

- Remove the turntable mat.
- Unhook the belt and remove the turntable platter.
- Once the platter's removed, you should see two plastic white gears in the middle. Rotate the center gear clockwise until its tab hits the larger gear. The center gear should move freely and without resistance until you hit that gear.
- Put the platter back, making sure to re-hook the belt around the spindle.
- Put the mat back.

After that, you should be set!

Posted on Aug 23, 2009

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1 Answer

Where can I find a replacement balance weight for the stylus arm on a Anders Nicholson 2655MMO turntable, cassette, CD player/recorder?


Balance weights can be removed and replaced easily. However when you say it snapped off, that could mean damage to the arm.
If everything is OK with the weight and you still have it, perhaps the weight could be "bodge" back into place. Perhaps with Blue Tack? If after all you can get the arm to balance correctly and apply the correct pressure to the stylus it doesn't really matter how the weight is attached does it? It might take a bit longer to set up correctly, but you might save some money if it needs a complete arm just to replace the weight!

Dec 09, 2015 | Audio Players & Recorders

1 Answer

Crosley CR6019A turntable skips


Hi
Being a portable model, it is very easy not to have the turntable level. It is very important that it is level as a tilt can lead to the head "skipping", amongst other things.
You can get a full User Guide here
http://0bee184f253cf7f48610-d2b1caba160808a264f409f8f32a9b54.r0.cf3.rackcdn.com/Crosley%20CR6019A%20%20Executive%20Turntable.pdf
Another possible problem is that the balance has become upset by being moved around. The correct balance is achieved b the positioning of a weight on the tone arm on the opposite end to the needle. This can usually be moved short distances to balance the tone arm so that the needle is held in the record groove, by the minimum necessary weight on the needle.
Hope this is helpful, if so would you please register that with Fixya
Cheers

Dec 26, 2014 | Audio Players & Recorders

1 Answer

Phillips AF-829


About the best thing you can try is just Google it, as you wrote above. That's about your only option. For more information, please visit my website at audioserviceclinic.com. Thank you.

Dec 08, 2013 | Audio Players & Recorders

1 Answer

My arm slides across.dont no how to adjust counter weight.


hello george!
first of all remove any needle protectors provided, there is some "weight" on the arm (at the opposite end from the needle). Release the tonearm, you have to turn the weights untill the arm is in balance, then turn 2 and a half so that the needle will go down (2.5 grams), this is the optimum pressure for the needle (pick-up), some people will tell to do more pressure on the pick-up but this will result in higher wear down. On the other hand necessarily this is needed for environments with higher vibrations like discothekes. Be careful not to allow the needle to drop onto the mat or the turntable platter during this adjustment.
The next step is to adjust (if available) the anti-skate adjustment. Set the antiskate adjustment to the same number as the needle pressure setting (i.e. 2.5 grams would be an anti-skate setting of 2.5). If you are back cueing or scratching, then set the anti-skate setting to 0.
regards

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Apr 12, 2011 | Pioneer Audio Players & Recorders

1 Answer

All the arm does whenever I try to play a record is move across the record. This even happens with a brand new needle. I'm ready to get a new turntable.


there is a counter balance on the side of the arm called an anti skating weight.it prevents the grooves on the record from pushing the stylus inward,wearing out one side.when the anti skate weight system has a fault,it drags the arm toward the center of the record faster than needed.there is also a weight on the back of the arm.that is the balance.when set to zero,the arm should balance.then the weight is turned to 1 gram or so.if there is not enough force downward,the anti skate mechanism will drag the arm inward.

Oct 28, 2010 | Audio Players & Recorders

1 Answer

Needle skips


A needle is a precision part. Look to see if the needle has a conical point descending from the cartridge needle carrier. If not, replace the needle.
*Always protect the needle while you adjust things!
Pressure is essential for the needle to track. Turn the weight down until the needle just floats above the record. Zero the weight by turning just the weight indicator, not the weight. Now turn the weight to add 1.2 to 1.5 grams. (Always use the manufacturer's recommended weight if different!)
A level surface is important. Make sure the turntable is level.
Test the arm bearings:
Adjust the weight until the arm floats. With a feather, gently push the arm towards the center. Now gently push it back. The arm should move smoothly with no hesitation and easily. Reset the weight to 1.5 grams or less.
If your cabinet is moving when you walk around, the records will skip. Find a different place for the turntable or don't walk around. In severe cases, raise the weight to 1.75 to 2 grams, but this wears the needle fast an can cause distortion.

Mar 22, 2010 | ION Audio Vinyl Recording Turntable

1 Answer

This is a question for my daughter who lives in Japan. She has a Crosley turntable she bought from Urban Outfitters. The stylus arm has suddenly started skating over the record, ie won't play anything. ...


I have no experience of Crosley turntables, however, stylus arm skating across the record surface on any turntable is normally due to the counter balance weight being incorrectly adjusted. In order to track across a record properly, the stylus must press down on to the record very lightly. If there is too little pressure, skating is what tends to happen. Too much pressure can cause distortion of the sound and excessive wear of the record.

At the pivoting end of the stylus arm, there should be a counter balence weight. This is normally adjustable (but not always - depends on quality and features of the particular turntable), and is used to set the pressure the stylus applies to the record surface, measured in grammes. The manual that came with it should tell you how to adjust it, but for most turntables stylus pressure is between 1 to 3 grammes.

If you dont have the manual, have a good look at the pivoting end of the stylus arm to see if soemthing is obviously wrong, or if not whether there is something with numbers on it that can be turned or slid. This is likley to be the counter weight. Try adjusting it.
Within reason, the stylus weight isnt critical so a "trial and error" approach wont do any harm.

Nov 12, 2009 | Crosley CR249TA Turntable

2 Answers

When i backspin the arm is forcing itself off the vinyl


IMO the problem can be solved in 2 ways, either move the counterweight on the back of the arm towards the turning point of the arm ( by just adjusting it 10 - 20 % of an whole spin you can adjust a lot), or buy an other needle which is heavier then this one...

Jan 29, 2009 | Technics SL-1210 Turntable

2 Answers

Philips turntable af 829


Specifically the turntable AF-829:
I had exactly the same problem, and fixed this succesfully.
The problem is in one of the opto-coupler combinations (LED + LDR).

There are two, both located in the mechanical part of the turntable:

1. The first is for the detection when the arm reaches the end of the record, so that it will return to base. This is a red LED with an optocoupler in a little black case. This is OK.

2. The second one is for detection that the arm has reached the beginning of the record area. You can test this by manually pulling the arm from base and moving it towards the record. Then the turntable should start to rotate. You will see it does not.
The problem is that either the LED has not got enough light-emission any more, or the LDR has become more insensitive. It's a transparent LED that radiates RED light.

I replaced the LED by a new (red) one with higher light output, and now it's working fine again.

Good luck!

Marcel.

Apr 14, 2008 | Philips Audio Players & Recorders

4 Answers

Well on my technics MK2 1210's, the little anti sketch settings and all the others probably arent set to what they are supposed to be, because my needle arm keeps jumping :P could someone tell me what all...


There are two main things that will influence the anti skate settings.

1) The Headshell Weight and Balance
Firstly, check the data sheet for the cartridge and stylus you are using. It should tell you the correct weight setting which will vary from one cartridge and stylus to another. If the stylus is set too light, it can skate across the disc. This can damage the disc and the stylus. The sound will also be thin and it is likely to distort on high frequencies. If the weight is too heavy, it will not jump but will definitely damage the disc.

If you are a serious vinyl user, get yourself a tone arm balance. This is a device that you place on the turntable and you rest the stylus on a plate which is marked in micrograms. You place the stylus exactly at the correct weight marking and then make adjustments to the turntable settings until the tone arm is balanced. It's easier than it sounds!

If you don't have the data sheet for your cartridge and stylus and cannot find it online, use an old disc that you don't mind damaging, set the weight on the light side and gradually increase the weight until it stops skating.

2) Platter Levelling
Secondly, you need to make sure your turntable us on a level surface. If you are a purist, use a spirit level. to do this.

There are other things that can cause skating and jumping, especially if you use the turntable as a DJ. For example, vibration (caused hopefully by dozens rocking to your music). DJs will often increase the headshell weight very slightly to overcome this and I have sometimes placed the turntables on a thick rubber sheet such as carpet underlay to improve shock absorption.

Mar 26, 2008 | Technics SL-1200MK2 Turntable

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