needle jumping on sl1210

WhoIsJohnBenson · Feb 19, 2004

needle jumping on sl1210

this may sound very silly for someone who's had decks over 2 years but....

on certain vinyl when I move back and forth past a beat my needle jumps off that groove and usually back to the beginning of the track. I have 2 decks but this only happens on my SL1210 (the other is a sony). I've tried increasing the weight at the back and using that anti-skating device (wtf is that anyway??!! )

Can anyone help please

WhoIsJohnBenson · Feb 19, 2004

Re: Re: needle jumping on sl1210

Originally posted by juski
You've had decks for over 2 years.. have you ever replaced the stylus?

It sounds like (if it's not the stylus/styli) that your anti-skate control is either set wrongly or is broken.

What's the anti-skating control for? Well, every vinyl record has grooves which start at the edge and work their way to the centre in a spiral. As you play a record forwards, the stylus goes round the grooves and has a tendency to want to hug the inner wall of the groove more than the other side. The anti-skating control helps the stylus to stay in the middle of the groove, touching both sides of the groove wall equally. Obviously if the control is set properly, the stylus stands a better chance of staying in the groove.

When you spin a record backwards for cueing or scratching the stylus tends to move towards the outer wall of the groove (coz it's going the opposite way, right). This, added to the anti-skate control can make the stylus leap out of the groove and across the record.

Anti-skate controls are normally numbered. The numbers relate to the tracking weight of the stylus. You should already have balanced your stylus & set the tracking weight to what the manufacturer recommends. Say the recommended tracking weight for your cart & stylus is 3 grams - set your anti-skate control to the number 3. All should be well with normal vinyl.

What might be wrong is that the stylus is tracking too heavily, meaning the anti-skate control can't compensate for it. Technics decks really aren't designed to hold carts & styli which track at more than 3 grams.

Try DECREASING the weight, and check that your cartridge is fitted properly.

If it's not that, try some different carts & styli ( borrow some). Yours might be too far past it - they're easily damaged and that could be the problem.

It might be the vinyl at fault aswell - in a way. Technics aren't the best at tracking slightly dodgy records. Infact apart from them being the 'industry standard' & being built like brick shithouses they're shite. I own a pair of sl1210s and I've used loads of others - Technics can't hold a candle to some of the new decks.
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lovely cheers mate, i'll check that out

i have thought about replacing the stylus before but because the sony wasn't giving me any grief i thought it unnecessary. i reckon its the anti-skating thingy. i'll let ya know how i get on cheers

Jon Mack · Feb 20, 2004

Re: Re: needle jumping on sl1210

Originally posted by juski
You've had decks for over 2 years.. have you ever replaced the stylus?

It sounds like (if it's not the stylus/styli) that your anti-skate control is either set wrongly or is broken.

What's the anti-skating control for? Well, every vinyl record has grooves which start at the edge and work their way to the centre in a spiral. As you play a record forwards, the stylus goes round the grooves and has a tendency to want to hug the inner wall of the groove more than the other side. The anti-skating control helps the stylus to stay in the middle of the groove, touching both sides of the groove wall equally. Obviously if the control is set properly, the stylus stands a better chance of staying in the groove.

When you spin a record backwards for cueing or scratching the stylus tends to move towards the outer wall of the groove (coz it's going the opposite way, right). This, added to the anti-skate control can make the stylus leap out of the groove and across the record.

Anti-skate controls are normally numbered. The numbers relate to the tracking weight of the stylus. You should already have balanced your stylus & set the tracking weight to what the manufacturer recommends. Say the recommended tracking weight for your cart & stylus is 3 grams - set your anti-skate control to the number 3. All should be well with normal vinyl.

What might be wrong is that the stylus is tracking too heavily, meaning the anti-skate control can't compensate for it. Technics decks really aren't designed to hold carts & styli which track at more than 3 grams.

Try DECREASING the weight, and check that your cartridge is fitted properly.

If it's not that, try some different carts & styli ( borrow some). Yours might be too far past it - they're easily damaged and that could be the problem.

It might be the vinyl at fault aswell - in a way. Technics aren't the best at tracking slightly dodgy records. Infact apart from them being the 'industry standard' & being built like brick shithouses they're shite. I own a pair of sl1210s and I've used loads of others - Technics can't hold a candle to some of the new decks.
Click to expand...

instead unscrew the back weight off the tone arm

RESULT

Jon Mack · Feb 22, 2004

Re: Re: Re: Re: needle jumping on sl1210

Originally posted by juski
yeah and fuck your stylus, your cartridge AND your vinyl in one fell swoop. Good work fella! (though not straight away but you won't take long to notice it).

While you're on why not tape a brick to the headshell to add a bit more weight
Click to expand...

had over 2.5 years out of my ortofon's, can't say I need to replace them either it's not a science setting up a technics deck

blur · Feb 22, 2004

I've had the same problem recently. Had my concordes on my 1210's for just over a year now and the needles are blunt as fuck. Have to buy some new styli which is gonna cost me £30.

I keep my tonearm weight screwed in backwards, anti-skate set to 0.

Cant say i've noticed any damage on my records or bad sound quality......

Feb 23, 2004

should replace your stylus every 3 months ish.

Jimmy · Feb 23, 2004

Originally posted by Jambon
should replace your stylus every 3 months ish.
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Depending on how much you use the decks of course.

Nass · Feb 23, 2004

in my professional opinion i'd say buy another one

blur · Feb 24, 2004

Originally posted by juski
So your needles are blunt as fuck and they don't sound bad? Does the treble not sound harsh as hell?

Click to expand...

no surprisingly.

I have a spare set of stanton 505's and after trying them out for a few hours.... I reverted back to my blunt as fuck ortofons......stantons are shit.

Jon Mack · Feb 24, 2004

Originally posted by blur
no surprisingly.

I have a spare set of stanton 505's and after trying them out for a few hours.... I reverted back to my blunt as fuck ortofons......stantons are shit.

Click to expand...

agreed, don't use my decks much at all

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