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I thought 'photoreflector' but then looking at Mouser that term
should maybe be changed to 'optical switch, reflective'<br>
Here are some:<br>
<a class="moz-txt-link-freetext" href="http://www.mouser.co.uk/Optoelectronics/Optical-Switches/Optical-Switches-Reflective-Phototransistor-Output/_/N-abusl/?No=25">http://www.mouser.co.uk/Optoelectronics/Optical-Switches/Optical-Switches-Reflective-Phototransistor-Output/_/N-abusl/?No=25</a><br>
From a quick scan there may be something similar.<br>
<br>
Worth giving Emu tech a shout to see if you can get a parts number?<br>
<br>
<div class="moz-cite-prefix">On 28/01/2016 21:29, foRUMS 4 punkdISCO
wrote:<br>
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<p class="MsoNormal">Hi all<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I have a new Emu XL7 (a complete blast!)
but one of the keypads is very flaky (mainly dead).<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">It is definitely not the rubber pad or the
rubber contacts. I’ve cleaned these all up and done various
experiments..<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I think the issue is a flaky light sensor
of some description.. In the below picture, the square
component marked U1 is some sort of light sensor; you can
trigger the sounds by putting your finger over these. Anyway,
the faulty one I can get working by pressing it around a bit
but after I re-assemble, it eventually stops working again.<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><a moz-do-not-send="true"
href="https://farm2.staticflickr.com/1470/24047199144_8e49158937_b.jpg">https://farm2.staticflickr.com/1470/24047199144_8e49158937_b.jpg</a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">So my questions are:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoListParagraph"
style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><!--[if !supportLists]--><span
style="mso-list:Ignore">1)<span style="font:7.0pt
"Times New Roman""> </span></span><!--[endif]-->What
is this component?<o:p></o:p></p>
<p class="MsoListParagraph"
style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><!--[if !supportLists]--><span
style="mso-list:Ignore">2)<span style="font:7.0pt
"Times New Roman""> </span></span><!--[endif]-->Will
it be easy to find a modern replacement?<o:p></o:p></p>
<p class="MsoListParagraph"
style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><!--[if !supportLists]--><span
style="mso-list:Ignore">3)<span style="font:7.0pt
"Times New Roman""> </span></span><!--[endif]-->It’s
VERY small so is it going to be impossible to swap out?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Big thanks for any reply’s..<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-GB">Paul<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-GB">London<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-GB"><a class="moz-txt-link-abbreviated" href="http://www.punkdisco.co.uk">www.punkdisco.co.uk</a></span><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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