D550 LCD Nightmare

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Python Blue
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D550 LCD Nightmare

Post by Python Blue » Fri Jun 06, 2014 3:30 am

I had purchased a Roland D550 a few weeks ago with a dim LCD backlight thinking I could effectively replace the LCD, myself. How wrong I was.

Those of you who've tried repairing your synths by way of disassembly, have you had that time when the screw is so tightly secured that you only succeeded in stripping the screw head? That happened to me with my Roland D550, specifically the upper three screws connecting the LCD and the buttons to the front panel, and I'm officially out of ideas for how to get them out without further risking damage to my unit.

If this kind of thing has happened to others here, were you able to get the screw out, anyway? If so, how?
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Re: D550 LCD Nightmare

Post by synthroom » Fri Jun 06, 2014 4:15 am

Get the smallest Vice Grips you can find and try that. Clamp it on the screw head and gently unscrew it. It may take a few tries to get the tension right to get a good grip on the screw head.

If the doesn't do it, try an "Easy Out" type screw extractor.
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Re: D550 LCD Nightmare

Post by Bitexion » Fri Jun 06, 2014 6:43 am

They might have secured the screws with a drop of glue.

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Re: D550 LCD Nightmare

Post by Europanaut » Fri Jun 06, 2014 6:58 am

I've never experienced that exact scenario, so I'm just imagining what I'd try. First, a toothpick-tip of penetrating oil. Not "3 In 1" or whatever, but actual penetrating oil. Liquid Wrench, or equivalent. Wick it in, and let it soak for a few hours.

Since the screw heads are already stripped, the small vise grips are a good idea. I would probably warm the screw up a bit first, by laying the tip of a soldering iron on top. Don't cook it, just try to get it to "thermally decouple" with the plastic threads. (I assume that the threaded shaft is plastic.)

Also, I've occasionally had good luck with over-enthusiastic bolts by actually TIGHTENING them a tiny bit, then loosening them off. Again, the idea is to initially decouple the items, then work them loose.

Just opinions, not advice.

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Re: D550 LCD Nightmare

Post by Python Blue » Fri Jun 06, 2014 8:02 am

Thing is, the screws in question do not stick above the metal it attaches to: they are flat heads recessed in the metal. Therefore, vise grips are out of the question as they require the screw to be exposed. I also do not have a screw extractor, though I did manage to find another option: supergluing nuts on top of the screws and then attempting to loosen them.
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Re: D550 LCD Nightmare

Post by synthparts » Fri Jun 06, 2014 1:10 pm

I have a set of drill bits from Craftsman (Sears) that are specifically for drilling out stripped screws. They've saved me lots of times...
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Re: D550 LCD Nightmare

Post by vcs3 » Sat Jun 07, 2014 10:23 am

Can you show us a photo?
I have a way unscrew with a side cutter.

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Re: D550 LCD Nightmare

Post by Adam C. » Wed Jun 11, 2014 9:31 am

vcs3 wrote:Can you show us a photo?
I'd be curious to see it too, if that's possible.

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Re: D550 LCD Nightmare

Post by pflosi » Wed Jun 11, 2014 5:54 pm

Also check this recent thread on MW:

http://www.muffwiggler.com/forum/viewto ... 52&start=0

Not a D550, but basically the same problem...

Good luck!

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