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Quartz accuracy not accurate

I have a Gemini Xl-1800 turntable. When I put the unit into quartz lock via pitch control slider, according to the platters strobe rpm meter it's running slow. Have to move the pitch slider and speed it up to make the dots appear stationary.. At 33rpm it needs to me moved ahead 1% and at 45 its 2%

Ideas?

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  • Audio Player... Master
  • 5,309 Answers

Sometimes it's down to the mains in the country you are in. Some decks change speed from 50HZ to 60HZ.

Posted on Dec 09, 2017

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6ya6ya
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Posted on Jan 02, 2017

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djproaudio
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SOURCE: speed

The drive circuits on this unit are probably failing. Have you had any service done to it recently, or at all, ever? If so, this might be the problem. The caps have probably dried out. Once they dry out, they go pretty fast afterwards causing variance in speed. A good tech should be able to replace the caps, and get your unit back to original specs.

- Davis
DJ Pro Audio
www.DJPROLAB.com
www.DJPROAUDIO.com

Posted on Aug 08, 2008

  • 69 Answers

SOURCE: Pitch control not working on Numark Pro-TT2

http://www.numark.com/content56791.html
here u go matey

Posted on Aug 09, 2009

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1 Answer

Once the needle touches 33 lp it speeds buy the songs


Yes the platter speeds up until the moment comes. 0'5 sec later and then the electronics take over , want you to try quartz activated and after that quartz put out and then you have a pll. try moving the pitch a bit, cause the 1210mk2 aint tables which you want for the good maintainence. if it helps or doesn't , mail as fast as you can

Mar 18, 2014 | Technics Audio Players & Recorders

1 Answer

There are 2 problems with the my deck: 1. The +-0 light for the pitch will not work but everything else about the pitch works fine. 2. The deck will not change from 33bpm to 45bpm, I have replaced the...


Hi, please do this test for me. With the deck running on 33 speed and the pitch control set to 0 use your finger on the platter centre and speed it up manually as much as you can. Doe's the quartz lock lamp come on? If not then open the deck up and loosen off the fixing screws on the circuit board that has the 33/45 buttons. Try to change speed with the board loosened off. If none of the above makes any difference replace the quartz lock neon. Use only original Technics neon. As a matter of interest have you done any mods to the deck? Cheers John,

Sep 29, 2011 | Technics SL-1210 Turntable

1 Answer

I own a SL1200 MKII and when the light "turn on" in the pitch control slider (green LED) the speed is not correct (big dots on platter move slightly) .Could you please give me some tips to solve...


Use the slide on the pitch control to move forward or backward until the dots stay steady. If it is a little old the quartz control won't work as well.

May 13, 2011 | Technics SL-1200 Turntable

1 Answer

Why Fry - 220 or 110 ????


You should be fine with this. Here is the spec:

Quartz lock large blue LCD display showing: speed, pitch & platter direction, locking platter reverse button, located in battle position, 3-speed design: 33, 45 & 78 RPM, 7 grams of anti-skate adjustment, adjustable pitch control+= 10 & pitch bend buttons, locking reverse button, hi-tech tone arm with height adjustment, feather-touch start/ stop control, strobe illuminator, pop-up target light, headshell, slipmat and dustcover included . 115V/230V switchable. 17.75"w x 6"h x 14"d. Weight:27lbs.

Jul 18, 2010 | Gemini PT-2410 Turntable

1 Answer

Issues with turntables picking up speed when trying to time start off. It's hard to match beats when the table does not start on cue or slowly try to catch up to speed. What's wrong with them?


This seems to be a pitch control issue. controller,
replacing \t,could be worn over time,
SL1200 Technics - if you want a solid long lasting excellence of sound reproduction for many years to come,

I had the same pitch control issue,
happened on one of my decks so I replaced the controller and good to go from there,

Another important tip -
never lubricate the controls sliders with any thing apart from the correct greases or oils applied by the manufactuer,most people dont think of the damage caused by the cleaners they use ,some aerosols eat away the fine oil that lubricates the pitch control sliders making them dry and brittle eventually cracking producing odd random performance issues,

hope this helps,cheers Misterdj

Apr 08, 2010 | Philips gemini XL-500 II Turntable

2 Answers

Turntable will not hold pitch,speeds up or slows down.


try replacing the drive belt with brand new one and see if this improves the situation

May 27, 2009 | Philips gemini XL-500 II Turntable

1 Answer

Pitch and Strobes


There is nothing wrong with your turntables. The Strobe dots are only a guide to give you an idea of the speed your platter is rotating. Nothing more, nothing less. The pitch control decal is not 100% accurate, it is simply a guide to tell you where the 6% position lies, 3.3%, etc.

As long as the quartz lock function works, and the large middle strobes are nice and solid, and do not move, your fine.

You can check out these videos for more insight into these wonderful turntables:

http://www.DJPROLAB.com


- Optic
Digital Analog Therapy
www.repairny.com
www.1200s.com

Sep 19, 2008 | Technics SL-1200MK5 Turntable

1 Answer

Gemini xl 500


on top of the pitch control there is a small hole, in this hole you can use a small screw driver  and turn it left and right to free any dirt inside this is the master pitch control

Aug 10, 2008 | Gemini XL-500 Turntable

1 Answer

Modification to SL-1210 Mk5


so what does the turntable do at 0?

May 30, 2008 | Technics SL-1200MK5 Turntable

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