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Replacing all leds in UM2


luisito
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Posted · Replacing all leds in UM2

Hi everybody.

I want to replace all leds in my old UM2.

It is rather easy to replace the strips on both sides but i could not find an easy way to replace the strip on top, without disasemble the whole front panel!:-(

Any advice on how to do so, the easiest way, please?

 

E.

 

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    Posted · Replacing all leds in UM2

    As far as i remember: the leds are 3 strips with short (soldered) connector cables in the corners. All held in place with some (self-) adhesive on the front panel.

    The whole strand came out in one piece on my printer. It's a while since i removed the (broken) strips, but i definitely did not disassembled any panels, that's for sure... 🙂 I just loosened the adhesive and pulled the strip out.

     

    Do you have any pictures?

     

    This picture is borrowed from the assembly manual:

    https://github.com/Ultimaker/Ultimaker2/blob/master/um2 assembly manual V1.1 _english.pdf

     

    grafik.png.7e75885e7d5d6a64edadca17bb68b854.png

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    Posted · Replacing all leds in UM2

    ok. I have pulled up all the leds. I can see 8V at the wires coming in from from the controller board. is that correct?

    I have tested the failing led strips and they light up at 15V or so, but not at 8V.

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