Technics SL1200 / 1210 Speed Fluctuation Problem - diyAudio
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Old 28th May 2008, 11:15 AM   #1
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Default Technics SL1200 / 1210 Speed Fluctuation Problem

Hi

I've found this site whilst trying to research a problem I have with my technics SL1210 Mk2. I've searched the forum but can't find anyone describing the subtle speed changes I am experiencing.

I have two of these decks, for DJ'ing, but recently one of the decks has developed a fault where the speed constantly oscillates around what I presume is the speed it should be turning at.

This isn't audibly noticable, but it causes huge problems when trying to beat match records as one record drifts all over the place and continual correction of this 'drift' means the mix will never actually sound cohesive.

The fluctuation is in the order of tenths of a percent, and occurs at all positions of the pitch fader, including at the zero position. I have come to this conclusion by playing two copies of the same record and hearing it drift from being in time, to too fast, to back in time, to too slow, etc., etc., so I'm pretty certain this is what is happening.

I've put a new pitch fader in the deck anyway as it is 15 years old and never needed servicing, but I guess something else is wrong and causing this problem... I am very willing and able with a soldering iron, but I don't have anything other than basic test equipment, i.e. a multimeter. I'm up for replacing as much stuff as it takes to fix this problem and have a bit of a stock of capacitors, etc.

If anyone can offer any advice it would be seriously appreciated as I don't have the time to send the deck off for repair anywhere.

Thanks.
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Old 31st May 2008, 03:52 AM   #2
burbeck is offline burbeck  United Kingdom
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Join Date: Aug 2004
Location: Ratae Coritanorum
hi Rob
did you read this? Technics SL-1210MK2 - weird speed problem
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bob
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