Question about Technics Audio Players & Recorders

2 Answers

I have a Technics SL-150 mk1 direct drive turntable in reasonable condition. The only problem is that the pitch does not stay steady. The pitch pots have to be adjusted constantly after start up as it very slowly speeds up. The deck is 34 years old but they were of a robust construction. Second issue is that I used sewing machine oil for the bearing. Would that have been too heavy? Regards David Downie

Posted by on

Ad

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 635 Answers

No the problem is not with the pitch control or sewing machine oil. You are having servo problem. You will need professional help because the old system used transistors instead of ICs. So the inside will look complicated.

Posted on Mar 11, 2011

Ad
  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 3,400 Answers

Normally sewing machine oil wouldn't be to heavy for this application, but if the pots were worn, the oil might have amplified the problem. I would search some of the audiophile forums online and avoid the Crutchfields' and other modern "know nothing" audio outlets. These were great turntables & "robust" is an understatement... With a little diligence I'm sure you'll locate replacement pots or another turntable as a "donor".(maybe Ebay???) Good luck on your qwest!

Posted on Mar 11, 2011

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

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

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

High pitched singing


It could be the wrong drive belt if the turntable is of the old fashioned type and does'nt have the direct drive. If the 33/45 switch isn't working properly then its a possibility its the drive belt tension on the turntable.

Apr 11, 2009 | Technics SL-BD22 Turntable

1 Answer

EVERYTIME I PLAY A RECORD IT DRAGS TO PICK UP SPEED


Are you sure you have a Technics SL1200MK2 Direct Drive Turntable? If so, then there is a major problem with the drive system. This can only be diagnosed and repaired by a qualified technician.

If your turntable is not the Techics SL1200MK2, and you have no idea what turntable you have, look at the model's label, if it says BELT DRIVE - this is the reason why it drags to pick up speed. If it says DIRECT DRIVE, then take it to a service center for repair.

- OPTiC
The ORIGINAL 1200 TECHNICIAN.

Technics DJ Repair Videos
Technics DJ Repair
Technics DJ Parts
DJ Parts
DJ Equipment Sales
Audio Video Accessories

Apr 02, 2009 | Technics SL-1200MK2 Turntable

2 Answers

Platter changes directions or stops


More than likely either an issue with an IC (integrated circuit) on the main PCBoard such as IC301 (Pitch Control IC) or one of the Regulators like Q2 and Q3. While your at it, you might want to check IC201 (Turntable Control IC), and IC101 (Turntable Drive). Doesn't sound like anything is busted just yet, if it comes and goes. This means something is about to fail, and your just seeing the failure in action.

Good luck.

- OPTiC

Technics Repair Videos
Technics DJ Repair
Technics Parts
DJ Parts
DJ Equipment Sales
Audio Video Accessories

Feb 01, 2009 | Technics SL-1200 Turntable

1 Answer

Pitch Slider


You more than likely have to have the pitch control replaced or cleaned.

- OPTiC
Technics Repair Videos
Technics DJ Repair
DJ Equipment Sales
Technics Parts

Jan 13, 2009 | Technics SL-1200 Turntable

1 Answer

1210 mk 2 pitch


Doubt it, ive heard of this problem before, usually people buying them second hand and the answer has always been get them repaired professionally, i dont know the reason for them doing it sorry.

Jun 10, 2008 | Technics SL-1210 Turntable

2 Answers

Technics problems


There is no drive belt on this unit. This is a direct drive turntable. Your pitch control might be on it's way out. Are you getting any sort of unusual speed issues? Or is it just sort of running slower than usual? There is a pot you can adjust under the turntable platter to speed it up a bit, however, this is only a temporary fix. It is listed as VR301 - and is on the main board under the turntable platter - it says PITCH on it. Try adjusting that pot, to see if it does anything. WORD OF CAUTION: Make sure your turntable platter is ALWAYS on whenever you power up your turntable, and if you do any electrical modifications, make sure you always disconnect your turntable from it's power source to be on the safe side. If this does not work, then either your pitch control (which is a variable resistor) will need to be replaced. The problem could also be one of the drive components on the main board, however, this will need to be worked on by a service tech. Hope this helps. - Justin

Jun 11, 2007 | Technics SL-1200MK2 Turntable

Not finding what you are looking for?
Audio Players & Recorders Logo

Related Topics:

389 people viewed this question

Ask a Question

Usually answered in minutes!

Top Technics Audio Players & Recorders Experts

 Grubhead
Grubhead

Level 3 Expert

5158 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

T-Comtech Repairs
T-Comtech Repairs

Level 2 Expert

417 Answers

Are you a Technics Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...