How do i change the speed of technics 1210 mk2 back to the original speed?

pls use the search function, this is answered 50 times

Being the older model, the chances are that the drive belt on the Mk2 turntable has got worn and shiny with use. It may also have stretched a bit. If you are using the tables for 'scratching', the fact that you are holding onto the turntable when the motor is running is placing a strain on the belt that it is not really designed for. I would recommend changing the belt - you can easily find spare belts for sale on the internet

Most likley the pitch fader has worn / become faulty.
Look here for a new one :-
http://cgi.ebay.co.uk/TECHNICS-PITCH-SLIDER-1200-1210-MK2-GENUINE-NEW-PART-/260601889485?cmd=ViewItem&pt=UK_AudioTVElectronics_HomeAudioHiFi_Turntables&hash=item3cad1542cd

Try fuse F1 / 250mA

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.

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

I have the same exact problem with one of my 1210 MK2 turntables. It seems like the motor is too slow now. When I hit the start button or release the record, it takes much longer to speed up to the normal speed than my other same exact turntable. I don't think it has anything to do with the pitch slider. Please let me know if you find out what the problem is thanks!

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.

Your switch probably went bad. Does it not respond at all? Does the button at least 'bounce' back when you press it? If not, then you might have messed something up when putting it back together.

- DJPROLAB

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