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 Forum index » Instruments and Equipment » General Discussion
Mattel Synsonic button woes...
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patrickvf1976



Joined: Aug 08, 2011
Posts: 181
Location: Gig Harbor

PostPosted: Mon Oct 14, 2013 1:03 am    Post subject: Mattel Synsonic button woes... Reply with quote  Mark this post and the followings unread

I have this Synsonic drum machine and the buttons are driving me insane. I have to either press VERY hard to make them work, others don't work at all or intermittently. I want to replace the switches with surface-mount push buttons. How difficult would it be to solder these on the pc board contacts? Did anyone ever accomplish this? Heck, I'm even thinking about putting it's guts into a box and mod the heck out of it. I got my cheap for about $24, so I'm not worried about keeping it in it's original state. Hmmm the drum pads have issues too. Think I'll wrap them in aluminum foil and make contact sticks for them a la Kraftwerk cheesy
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The Real MC



Joined: Jun 20, 2008
Posts: 60
Location: Painted Post NY

PostPosted: Tue Oct 15, 2013 4:05 pm    Post subject: Reply with quote  Mark this post and the followings unread

There's a reason you got it cheap. Mattel is a toy company and their stuff isn't meant to last forever.

Buttons are the achilles heel of a lot of gear and are often the first devices to go bad. There's no guarantee you can find a direct replacement as OEMs (especially the asian ones) change their parts often as a party to the "planned obsolescence" profit model (I'm talking to YOU, Alps!). PCB mounted controls like Slidepots and rotary pots are especially a PITA.

Gear made in the last ten years seem to have gotten worse, especially those d@mn tact switches used on a LOT of gear. Many panel buttons are simply a button cap with a tact switch underneath on the circuit board. I had tact switches go bad in several pieces of new gear.

The first sign of a failing tact switch is hard presses to make them work. That's probably what you are seeing.

I had an 80s non-MIDI drum machine with bad tact switches, couldn't find direct replacements so I got rid of it.
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patrickvf1976



Joined: Aug 08, 2011
Posts: 181
Location: Gig Harbor

PostPosted: Tue Oct 15, 2013 6:04 pm    Post subject: Reply with quote  Mark this post and the followings unread

there aren't any tact switches, it's just a rubber button pad with those dreaded carbon contacts that sit over a row of contact traces on the pc board. I hate those kind and I don't want to spend $27 + s&h for a so-called repair paste just to have the same problems dive up later on. I found out that Radio Shack has mini push buttons for $3.49 for a set of 4. I took a peek inside and was delighted to see easy points to solder wires on for the buttons. I was gonna put the thing in a different case anyhow. I want to make it look like something out of the 50's with mint green coating and all cool
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