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 Forum index » Instruments and Equipment » General Discussion
My Broken MKS-70
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coolhandluc



Joined: Oct 01, 2015
Posts: 2
Location: Kansas City, MO

PostPosted: Thu Oct 01, 2015 11:19 am    Post subject: My Broken MKS-70
Subject description: Looking for a buyer, or possibly a fixer
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Hey! I'm completely new here to this website and forum. I bought my MKS-70 and PG-800 about 3 months ago and it has just recently crapped out. It won't turn on! I tried swapping the power cord with a new one and - nothin'!

Even though this sucks pretty hard, because I had a blast with it, I'm looking to sell it to anyone who wants extra parts. Or possibly to someone who may be able to fix it and use it for themselves.

If someone could also simply fix it, for a low cost, then that would be cool too.
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DrJustice



Joined: Sep 13, 2004
Posts: 2114
Location: Morokulien
Audio files: 4

PostPosted: Fri Oct 02, 2015 5:44 am    Post subject: Reply with quote  Mark this post and the followings unread

Sounds like the power supply has died. With a little luck that could be quite simple to repair - ultimately as simple as changing a blown fuse. The mains fuse is inside the box - open it up and have a look maybe, you'll spot the glass fuse on the power supply board. Unless you want to have a go yourself, perhaps there are some EM members in Kansas City who could take a look at it. If not, any electronics repair shop should be able to quickly/cheaply diagnose and fix it, provided it's only the power supply.

The service manual is readily available on the net, e.g.here.

Just don't give up on it - it's definitely worth a repair (or fuse swap...)!
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coolhandluc



Joined: Oct 01, 2015
Posts: 2
Location: Kansas City, MO

PostPosted: Sun Oct 04, 2015 11:34 am    Post subject: Reply with quote  Mark this post and the followings unread

Okay, awesome. Thank you for replying. I'll go ahead and take it into an electronic repair shop then. It would be a sad thing to not have it any more, the sounds are so luscious.
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DrJustice



Joined: Sep 13, 2004
Posts: 2114
Location: Morokulien
Audio files: 4

PostPosted: Mon Oct 05, 2015 6:28 am    Post subject: Reply with quote  Mark this post and the followings unread

It does sound rather good. I had the keyboard version of it, the JX-10. That's one of the synths I regret selling...

Be sure to give the repair shop the link to the service manual, or even a printout of it.

Good luck! Smile
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superlewing



Joined: Jun 18, 2010
Posts: 3
Location: Cambridge

PostPosted: Wed Nov 25, 2015 4:50 am    Post subject: Reply with quote  Mark this post and the followings unread

Happened to mine, the fix was a simple matter of reflowing the solder on the power supply board.

Apparently the PSU runs a bit hot causing dry joints
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