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Problem with unstable pitch in Technics SL 1200 MK2 turntable

Hi, The pitch on my Technics SL 1200 MK2 has started playing up for the first time. I bought the turntable second hand from a shop that specializes in Technics turntables two years ago. Here's a video of the problem https://photos.app.goo.gl/bKn4vSbPmvi5AZqk6 When I start going into the +, the pitch starts to become unstable. It seems fine in the - although I've noticed that beatmatching has become a bit harder that it used to be so it might also be a bit unstable but not very noticeable. I've checked some similar threads on forums but the answers are a bit all over the place and I'm not sure if my problem is exactly the same or not... The shop I bought them at said without having seen them that it sounds like an IC related problem and quoted me 85 euros for material and installation. I'd ideally like to try and do this myself as I'm strapped for cash at the moment, so I'd really appreciate some advice. Thank you

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  • Technics Master
  • 10,535 Answers

Hi Thomas, as you say, it's not the engine, nor the integrated engine
Most likely, the pitchel potentiometer that generates the problem
I would try to clean it, applying a small amount of contact cleaner and test if there are improvements
Keep in mind that it is the Pitch potentiometer that is changing the speed
Comment if the suggestion served
Regards Franco Dosil

Hola Thomas, por lo que comentas, no es el motor, ni el integrado del motor
Lo mas seguro es que el potenciometro de pitch el que genera el problema
Yo intentar?a limpiarlo, aplic?ndole una peque?a cantidad de limpiador de contactos y probar?a si hay mejoras
Ten en cuenta que es el potenciometro de Pitch el que va modificando la velocidad
Comenta si sirvi? la sugerencia
Saludos Franco Dosil
https://www.manualslib.com/manual/387776/Technics-Sl-1200mk2.html

Posted on Aug 22, 2019

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6 Suggested Answers

6ya6ya

6ya staff

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Posted on Jan 02, 2017

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Keith Seekwhensir

  • 382 Answers

SOURCE: Technics 1200 MK2 displaying irregular speed to include dragging and slowing

It sounds like the pitch slider needs to be replaced...

Mikey's Hook-up
88-90 North 6th
Brooklyn, NY 11211

Cover insured UPS charges both ways and you will get sorted.

Posted on Oct 28, 2007

Anonymous

  • 515 Answers

SOURCE: technic 1200 mk2 turntable wont spin

need to know if it powers up. Does it try to spin, do you hear it trying to spin? More than likely the on/off switch went bad. No, I am not referring to the ON/OFF knob. THere is a switch this engages when turned. The part is S601. You might also want to replace the Start/Stop switch as well. If neither work, then the issue is on the main PC board, and probably IC101, or IC201 with the problem. At this stage, you will have to have a service tech look at your unit.

Posted on Nov 02, 2007

Anonymous

  • 515 Answers

SOURCE: technics 1210 mk2 problem with pitch and lights

Check that your voltage settings are set correctly. This is located underneath your turntable platter. If you remove the slipmat, you will see 2 holes on the metal platter. Rotate the platter till you see the voltage switch, located @ the 9'o'clock position. Make sure it's set to your correct settings (N.America = 115V / Euro = 220V). If not, you will need a flat head screw driver to switch it. Before you switch it, make sure your unit is off and unplugged. After you swich it, it should be ok.

If your still having issues with the speed and the pop-up light, then there is something seriously wrong, and will need to be checked by a technician. Sometimes a resistor or IC will go bad, causing the speed issue, but for the pop-up light - that's usually faulty wiring generally caused by an incorrect replacement.

Did you buy this new or used? Have you had this serviced recently?

- TWEAK AV LAB
The ORIGINAL TURNTABLE Technicians

Posted on Dec 01, 2007

Anonymous

SOURCE: Using Technics SL-B2

check the antiskating. then i don't know.. maybe the tonearm has to be calibrate

Posted on Feb 24, 2008

ABRsvcs

  • 4234 Answers

SOURCE: technics turntable plays but no sound with Sherwood receiver

The problem is the fact that the new receiver has no phono input. The phono input has an extra stage of amplification built in. Your receiver is working fine. You need to purchase a phono pre-amp. These run around $20. Connect the turntable to the preamp and the presmp output to any line level input on your new receiver and everything will work as expected.

Dan

Posted on Apr 12, 2009

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1 Answer

Technic 1200mk2 pitch problems


Check for bad solderings on Q201 and surrounding areas.
Resolder IC101 and IC201. If that doesn't help, Q2 and Q3, both 2SD637R, could be broken. If that doesn't fix it replace the electrolytic capacitors. Cheers john. Styluscity

Mar 03, 2012 | Technics SL-1200MK2 Turntable

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SL-1200 Turntable: My brand new Technics 1200 MK2 sounds wobbly when ...


Try plugging it into a different power point. The problem is with the power supply fluctuating. You can eliminate that with a UPS, here is a link to wiki http://en.wikipedia.org/wiki/Uninterruptible_power_supply

styluscity@gmail.com

May 10, 2010 | Technics SL-1200 Turntable

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Technics 1210 MK2 - unstable/uneven speed problem


Since this is a direct-drive turntable, it isn't a slipping or stretched belt. You will need a technician with a couple pieces of equipment and some experience/training to find the source of the problem. I suspect the part(s) will be the minor cost of the repair.

Sep 07, 2009 | Technics SL-1210 Turntable

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Pitch Control issues on Technics 1200 mk2


The pitch pots have been altered.
there located under the platter & cover on the main circuit board.it's a peace of **** to sort them.
if you help e-mail me djtatty@hotmail.com

Jul 20, 2009 | Technics SL-1200MK5 Turntable

1 Answer

Help for technics 1200 MK2 and 1210 Speed is too fast


On the 1200MK2 the pitch control slider is for just that purpose. Disregard the 0 setting and use the illuminated strobe marks on the platter to adjust to nominal speed. When they appear to be motionless you are there. The control on the 1210 may be a knob but the same principles apply.

http://en.wikipedia.org/wiki/Technics_SL-1200

Apr 04, 2009 | Technics SL-1210 Turntable

2 Answers

Technics 1200 MK2 displaying irregular speed to include dragging and slowing


It sounds like the pitch slider needs to be replaced...

Mikey's Hook-up
88-90 North 6th
Brooklyn, NY 11211

Cover insured UPS charges both ways and you will get sorted.

Oct 23, 2007 | Technics SL-1200MK2 Turntable

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