Question about Technics SL-1200MK2 Turntable

3 Answers

Only spinning at 1 speed

My turntable is only spinnin at 1 speed and its not 33 or 45 it seems 2 b goin 78 strange i now.and the pitch is not workin

Posted by ashley trigg on

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3 Answers

Anonymous

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  • 515 Answers

You have a runaway platter issue which is generally caused by either 1 or many factors - none of which are easy fixes, unfortunately. It could be any of your IC, resistors, or capacitors that have gone bad. Fortunately, these parts are still available with the exception of IC301 - discontinued - so, pray that it is not it. You will need to take it to an authorized service center for repair. Use the Repair Service search feature in Fixya.com to obtain someone locally. If you can't find one in your area, we are listed in the directory, and our company offers free return shipping within the continental U.S. - and if you are in NYC, we offer free pick up/delivery. We are experts with the 1200s, so rest assured you are in good hands. If you find a knowledgeable service tech in your area, and he's stumped, he's welcome to give us a call as well and we can walk him through the servicing & repair. - Justin

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Posted on Sep 02, 2007

  • Anonymous Sep 02, 2007

    Just so you know, it has nothing to do with your 33 or 45 rpm switches. This is a common problem on the 1200s.

    - Jsutin

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Anonymous

It is a 3 pronged chip near the power supply.. there are two of them. desolder and replace with new of the same part number. you may need a service manual to retrieve the part number. to be safe do them both. This is usually caused by a reverse ground. I did that one time (actually twice) messing with my pop up light.

Posted on Jul 03, 2007

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This is a high dollar turntable. If you want, take the screws out, open it up and check that the direct drive speed gear is in place. Other than that I would take it to a repair shop. There's one guy on ebay selling a new one for $500.00 http://cgi.ebay.com/Technics-SL-1200MK2-Manual-Direct-Drive-Turntable-New_W0QQitemZ320132536688QQihZ011QQcategoryZ64448QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

Posted on Jul 01, 2007

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1 Answer

My Technics SP15 is going at about 300RPM, whether on 33,45 or 78. What repairs are required?
your Motor Controller is not working properly and is giving 100 power.

Nov 14, 2014 | Audio Players & Recorders

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Recently purchased used Panasonic SL-HM42 turntable. Works, but turning a little slow on 33rpm (30-31rpms) says DC Servo System on the front. Don't see any set screws on bottom. would like to get platter...
How to tweak the playback speed on Panasonic SL-HM42 turntables
recently-purchased-used-panasonic-sl-jxgmd5u3zcskalhaccgps5fw-3-20.png

You will need:

  1. 1x small Philips screw driver
  2. 1x small flat-head screw driver
  3. An ear for correct pitch and a little bit of DIY skill!

Step 1 - Remove the wooden base plate

After ensuring that you've removed the the rubber turntable slip mat and securely docked the turntable arm, carefully flip the turntable over onto its lid to expose the wooden base plate, as per below.

Using the small Philips-head screw driver, remove the screws holding the wooden base plate in place, then gently lift the base plate off the turntable.

recently-purchased-used-panasonic-sl-jxgmd5u3zcskalhaccgps5fw-3-26.png

Step 2 - Expose the pitch adjustment screws

Once the wooden base plate is removed, you will see the speed-controller circuit board on the right-hand side.
recently-purchased-used-panasonic-sl-jxgmd5u3zcskalhaccgps5fw-3-50.png

To expose the the two speed/pitch-control screws, firstly remove the screw holding the speed-controller circuit board in place, then gently lift the circuit board up on the free side.
recently-purchased-used-panasonic-sl-jxgmd5u3zcskalhaccgps5fw-3-41.png

Step 3 - Correct the turntable playback speed and pitch

The easiest way I found to correct the playback speed was to flip the turntable carefully back into the original position, allowing the speed-controller circuit board to hang free as shown below.

recently-purchased-used-panasonic-sl-jxgmd5u3zcskalhaccgps5fw-3-60.png

Next, play a record that you know well and are able to tell when the speed/pitch is correct (assuming you have an ear for correct pitch, that is!), then at the same time using the small flat-head screwdriver, gently turn the speed adjustment screw(s) to adjust the playback speed up or down until the correct playback speed and pitch is achieved (or at least until it no longer annoys you ;).

Turning the screws clockwise (to the right) will increase the speed/pitch, and anticlockwise (to the left) will decrease the speed/pitch.

NB - Both screws allow for fine pitch control, so if the second is already at maximum speed, you can use the first screw for additional speed.
Step 4 - Reassemble the turntable again

When you're happy with the speed of your turntable, remove the record, the mat again & locking the turntable arm, replace the screw holding the speed-controller circuit in place (as per Step 2) and then finally replace the screws holding the wooden base plate, as per Step 1.
Happy listening!

Aug 29, 2013 | Audio Players & Recorders

3 Answers

My stanton t50 turntable plays too fast even when the pitch fader is at the slowest speed
You need to calibrate your pitch control. This requires a small precision screwdriver (similar to something you would repair eye glasses with). If you look under the turntable where the pitch control is you will find 2 small holes, 1 marked 33 and 1 marked 45. Turn the turntable on and set the pitch control lever to zero pitch. While the turntable is spinning insert the screw driver into the pitch calibration hole under the turntable and twist the potentiometer back and forth until the turntable pitch is zero (I believe clockwise is faster, counterclockwise is slower as you look up from the bottom of the turntable). This is a fine tune adjustment and will not require much turning to adjust the speed (1 or 2 mm's) either way should start to bring you into zero pitch. The platter speed can be verified by the little dots on the rim of the platter. They should appear stationary in strobe light on the power switch when you are at zero pitch. When you are adjusting the speed you will observe the dots on the platter rim spinning clockwise and then counterclockwise as you adjust the fine tuning. Fine tune the speed until the dots appear stationary and you will be back to zero pitch. You have to adjust the turntable at both speeds 33 and 45 using the correct fine tuning hole under the turntable. My personal experience is it is easiest to do this with 2 people. 1 person to hold the turntable level and running, while the other adjusts the fine tuning. Hope this helps.

Oct 22, 2009 | Stanton T.50 Turntable

1 Answer

Pitch adjust doesnt lock between 0% and +50%
There is a chip in the unit called a
phase lock loop ,( P.P.L )its use as station loc
for stereo turner. But the same applies.
Its drifting and unable to hold/lock
the signel is noisy that its trying to
lock on to (open ground) or the VCO
is out eather way it probley needs
to be replaced.

Hope that help a little

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1210 mk2 speeds up on its own
hi ,,,the pitch control is good dont chance it ..you have a problem on the main board ...of your turntable...check the cold solder of your main board of your deck....maybe some of them are loose that why you got a wiggle platter.. u...then fidbk me wat happend? u

Jun 18, 2009 | Technics SL-1210 Turntable

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Turntable spins too fast at both speeds
this is belt driven turntable....have you tried adjusting it via the pitch control or even getting another belt for that turntable....

Apr 12, 2009 | Audio Technica AT-LP2D Turntable

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Pitch problem
check it.

http://www.repairnyc.com/

These guys are authorized technics service.

Jan 05, 2008 | Technics SL-1210 Turntable

1 Answer

Problem with pitch on my technics
You may have to recalibrate the motor. These guys are pros.

http://www.repairnyc.com/

Check em out.

Jan 05, 2008 | Technics SL-1210 Turntable

2 Answers

Pitch control center moved
Hello, Mr. Dixon.
I had the same problem and i decided it whit this procedure:

1. Restoring Factory Default Settings



2. Set the PITCH Slider to the center ( 0 ) position.

3. With the CDX-05 in the start mode displaying “no Disk” hold down EJECT and TIME/ENTER and press FILTER. The TEMP display in the LCD reads 0.0 and the procedure is complete.

Good luck!
 Peter Petrov

Dec 08, 2007 | Vestax CDX-05 Turntable

1 Answer

1210 mk 2 strangeness
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

Dec 01, 2007 | Technics SL-1210 Turntable

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