Sl-1200MK2 Platter STUCK

possible bad drive motor

Technics SL-QD33 doesn't turn - Vinyl Engine

www.vinylengine.com/turntable_forum/viewtopic.php?t=28381

Jun 3, 2010 - 15 posts - ‎3 authors
It powers up, lights come on but the platter won't spin. ... However when I press "start", nothing happens and the platter won't spin when ... the arm towards the record without pressing the "start" button. ... SL 7, SL-10... and / or any of the fully automatic Technics turntables using optical record detection......etc Marantz 6300 question...
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Help!! My Turntable won't spin - AVS Forum ' Home Theater ...

www.avsforum.com/.../1316271-help-my-turntable-won-t-spin.html

18 posts - ‎7 authors

They are asking this because anodising is especially suited to aluminium alloys, but not to steel.

Anodising can be done in various colours and finishes. Steel can be chrome plated, shiny or dull, and also plated with other coloured finishes such as cadmium.

The tone arm in this photo of the SL-1200Mk2 looks to be chromed, which means it is steel. To find out use a small magnet at the midway point to see if an attraction can be felt.

http://www.mds975.co.uk/images/vinyl_heaven/sl-1210_04.jpg

Hi, have you tried manually moving the tonearm (with tt off) from its stating position across the platter to the centre? If you do this and find you get resistance at a certain point then there is damage to the tone arm base or bearings. Is the tonearm lifter going down completely?

The chances are the rubber drive belt has either broken or stretched so that it has fallen off the drive pulleys.
You will need to gain access to the underside of the turntable to replace it.
With most turntables the process will be to secure the tone arm (a rubber band will do the trick) before turning the whole thing upside down and unscrewing the base.
Replacement drive belts are easily available on the internet. Search by make and model number of your turntable

If you remove the rubber pad from the top of the platter then you should be able to lift the platter off the servo drives' center shaft,
from memory the unit is not attached just held on by gravity,if the servo magnet is gone the take it in for a service and pay the man for his time,

My first problem on my 1200s was a pitch control issue and easy to fix,with a little cash,never use second hand parts unless you know what you are doing because when they fail on you while playing to a packed dance floor then youll get more of a supprise than you barginned for,

Misterdj

If the force is towards the center of the disk, it's OK, it's the antiskating force. Set antiskating at 0, set the weight at 0gr, turn around the makeweight in order to set the tone arm parallel to the disk. With the antiskating at 0 the tone arm will stay parallel to the disk in the place you leave it. With the antiskating at any other position the tone arm will stay parallel to the disk going towards the center of the disk.

In case of a problem or clarification, don't hesitate to post.

Thanks and regards
Please kindly rate this solution
Stelios
direct FiXya link: http://www.fixya.com/users/technical114

(remedy) ok you can take the whole tone arm (remove the screw under the tunrtable , the rubber and the hard black and  go to the tone arm position (under) there is 3 screw to loosen and then try to burn wher the screw position .i mean take some lighter.but be carefull...

Honestly... Just Pull it back off and switch it around.... it may feel like your gonna break your tone arm but just pull at the weight and it will give before your tone arm does... but BE CAREFUL!!!

the platter should have two holes on it,my 1210 does. put your thumb on the spindle and a finger in each hole and prize the platter off. theres no screws holding the platter on just a tapered spindle shaft. it is quite heavy so a good pull will do it. as for the scraping it might be as simple as packaging placed under the platter to secure it for shipping, technics are built really well so i cant imagine it could be anything major. i hope this helps you out, if you need any more help let us know. please also let us know how you get on. darren