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technics sl1200mk2 turntable stopped turning

Hi folks - once again I turn to the oracular internet for advice for my woes. The internet, it seems, knows Everything!

I've had a pair of these classic DJ turntables for years. Now, suddendly and not precurred by any obviously damaging events - the platter doesn't spin up when I press the start button. The turntable turns on, everything lights up, but nothing happens when I press the big button.

Now, I'm techie minded, I'm comfortable with my soldering iron and multimeter, but I don't really know where to start with troubleshooting this beast. Can anyone help point me in the right direction with respect to what might need to be replaced? I *do* have the service manual, but there aren't troubleshooting instructions in it, and the most I would know to do is just start checking every resistor - probably not the most efficient way of doing things...

Any help is greatly apprecieated. Thanks, folks!

Elijah

Reply to
elijahs
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Some of the electro-mechanicals on these decks are not as robust as they would seem, go for switch problem first, some repair briefs for them on my file

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-- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on

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Reply to
N Cook

The 1200's are reliable enough that I've no experience with anything other than the neon lamp problems, but the first thing I would check would be the switch itself - it could be bad or have bad solder connections, and the DC voltage supply for the motor circuit would be next on the list.

Mark Z.

Reply to
Mark D. Zacharias

Probably power supply related, or the start / stop switch itself is bad, or has bad solder connections.

Mark Z.

Reply to
Mark D. Zacharias

the

I suspect the large start/stop pad encourages the use of a fist rather than a finger. The illuminator is a nice idea but it wangs up to an abrupt stop jarring any bulb inside and the wires to it are so close to being guillotined each time. The combined power on/off with that feeble cam system combined with the strobe is a bit too gimmicky for its own good. Love the heavy duty weighty rubber base though, shame about all those fixing screws.

-- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on

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Reply to
N Cook

Reply to
Bennett Price

The 1200 MK series is probably the most famous direct-drive type ever. Mainly used for DJ type work though, not so much for hi-fi.

Mark Z.

Reply to
Mark D. Zacharias

Reply to
Bennett Price

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