Technics SL-1200 Turntable - Page 5 - Answered Questions & Fixed issues

X1N may I suggest a few drops of mineral oil, the bottlels you find in the local grocer store. Once applied let soak for mabe 2 to 3 hours. Wipe or sponge away oxidation. The soaking may take longer. View the working one very closely to compare to the troubled one. The controls may accepte repositioning to the correct position now. If you got the guts study the assembley and make notes of you disassembley procedure, the problem may just need some realignment internally. I hope this helped.

It doesn't really sound like this tech knew what he was doing. He probably connected the ground wire incorrectly. I would also suggest opening up the tonearm base section, and checking to see the work he did. Perhaps he did not solder the RCA leads correctly.

If all is good, then there are only 2 other things which may cause this... 1) Tonearm, 2) Cartridge. You'll have to check those 2 out.


FYI, I work on 1200s for a living, so I know these machines inside out.

- Davis
DIGITAL ANALOG THERAPY
www.REPAIRNYC.com
www.1200s.com

LED probably burned out, or installed reverse (+/- reversed) - Or, you installed a clickless (MK3/MK5) pitch control in an MK2 turntable.

Did you do this yourself? Or did you have this professional done? If professionally, and the LED does not work, ask for your money back! This is electronics repair 101!

If you did this yourself, then more than likely you installed the LED backwards. The longer lead is the positive lead. If the LED did not burn out, you might be able to just remove it and switch it around. If it does not work, then it probably shorted (more than likely). Also make sure that none of your solder is touching. This could cause a bad short to your entire turntable. So you want to becareful.

If you need any further assistance, feel free to give our service dept a call. We are masters with the 1200s, and fix over 300 a year! 1.866.668.1596 ext 1

- TERMiNAL OPTiC
www.DJPROLAB.com

Well, does the platter spin at a constant speed (33 or 45 rpm), or does it spin super fast? If it spins at a constant speed, and it just wont stop, replacing that pot should do the trick (VR201 can be purchased HERE). You can attempt to replace it yourself (soldering skills are required), or just buy the part, and have a service tech replace it for you.

If it does not solve the problem, then the issue is with one of the IC's (integrated circuits). This is a more complex diagnosis and repair. But try replacing VR201 first, then taking it from there.

Good luck!

- TERMiNAL OPTiC
www.DJPROLAB.com

There seems to be 2 issues with this unit. Usually when the platter speeds up very quickly, one of the IC (integrated circuits) are faulty and needs to be replaced. However, I've never seen the 33/45 lights come on in addition. So, perhaps the issue started with faulty 33/45 switches, and it then caused a short to one of the IC's.

This will have to be professionally serviced, as it is not an easy fix. There are various circuits on the main board which control the drive, so it's a matter of diagnosing which is the culprit. The 33/45 switches will also need to be tested/replaced.

- TERMiNAL OPTiC
www.DJPROLAB.com

One of the drive circuits on the main board are faulty, and will need to be replaced. This is not an easy fix, so you will need to take it to a qualified service center for service and repair. Not an expensive fix, but a little time consuming in isolating the issue.

- TERMiNAL OPTiC
www.DJPROLAB.com

All parts are discontinued for this model. The SL1200MK2 dust cover will not fit this turntable. You can actually have a dust cover made rather simply and cheaply (depending on where you live). Just take the dimensions to a PLEXIGLASS or even a GLASS shop. You can even purchase the Plexiglass yourself, cut it, and glue it together. I would suggest getting it professionally done. You can use any high impact plexiglass. Get something that is resistant to scratches and discoloring.

- DJ PRO LAB
www.DJPROLAB.com

Problem is with the center shaft/spindle. Part can be replace, but not tightened. This happens over time. You can purchase the PART HERE.


- DJ PRO LAB
www.DJPROLAB.com

You have a bad tone arm. I have the same tables. You need to get it repaired if under warrenty. Or there is a service manaul online you can get from ebay. Service center for our tables is Panasonic.

I had the same problem on mine. But while it is in the shop they recalibarte it

ive had this problem djing in front of 700 people...Not good!! i can tell you exactly what it is, the tone arm bearings are being pinched too tight or there is a tiny piece of debris in the bearing race of your tone arm or blatentley your vinyl is scratched lol.... assuming you ve set your stylus correctly and the turntable is level on both axis???? slightly unscrew the tiny screw on top of the tone arm just enough to release the pressure on the bearings inside, but not so much that it wobbles about??? happy mixing

Issue is either your tonearm or your RCA cables. Unfortunately, there is no easy way to determine which is the problem. I would suggest replacing the RCA cables first, as it is the least expensive. If it does not solve your problem, then the issue is with the tonearm.

You can also do this for now:
Remove your headshell/cartridge from the tonearm. Look inside the tonearm tube, you'll see 4 gold prongs. Make sure all 4 prongs are protruding, and are 'shiny'. If they are not, then the issue is with your tonearm. If they look good, then more than likely, the issue is with your RCA cables. Taking it to a qualified repair center will help in determining what is the issue, but they will need to open your unit to test, so be prepared to pay for the estimate right off the bat.

If your in the NY Metro area, look us up. We also offer nationwide service, if you cannot find anyone local:

http://www.tweakrepair.com

DJPROAUDIO
TWEAK AV LAB

You most likely have broken balls,,, lol yes balls bearings are most likely broke you might have to replace your arm.. about 80.00 for the part

sounds like the pitch needs replacing or tighting. Get them serviced. Ask your equipment supplier shop. Good way to check the decks are in sync is to place the pitch on each marked seting ie 0 / 2/ 4/etc making sure both decks are set to the same pitch adjustment speed. Look at the light from the on/off switch and check the 4x circles on the deck platter and make sure they are the same as each other. If you never used this before. set your eyes and pay attention, you will notice the pattern. I mix this way to get tunes roughly in time without listerning to the track - DJ EZ helped me with this years ago. peace DJ Nyce

If you feel confident doing so, you could attempt to open the cassette deck and physically examine the gears to check for damage or debris that might be obstructing them. But do remember that there are risks involved when opening electronic equipment, especially if you're not used with doing this kind of work. If you're not sure you can do this securely, it would be preferable to get assistance from a qualified audio equipment repair specialist.

Could be one channel has failed in the amplifier caused by 40 year old components failing. Could be a shorted speaker lead, damaging the amplifier. Job to say without seeing it on the work bench with test gear.

Question edited for clarity. No free ones.

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I would check the weight and allignment.

The cueing mechanism should lift and lower the tone arm regardless of whether there is oil in the cylinder or not. The silicon oil is used to dampen the movement. If the lever does not operate the tonearm, then there is mechanical damage under the platter.

Were you expecting an electronic powered unit to work without power ... No power = No output.

Question edited for spelling and add some SPACES! Did you look for bulging electrolytic capacitors? If you can't see any, then you need to take it to a service centre, as they have thousands of dollars of test equipment and access to parts. ..