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<p class="MsoNormal">Hi Anu, <o:p></o:p></p>
<p class="MsoNormal">Great job. <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Nilanga, I will be at JLab on Tuesday 14<sup>th</sup> morning. I can pass by on Monday to the department to pick the APVs / MPDs
<o:p></o:p></p>
<p class="MsoNormal">Best regards <o:p></o:p></p>
<p class="MsoNormal">Kondo<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b>From:</b> Sbs_gems <sbs_gems-bounces@jlab.org> <b>On Behalf Of
</b>Liyanage, Nilanga K (nl8n)<br>
<b>Sent:</b> Friday, December 10, 2021 5:11 PM<br>
<b>To:</b> Rathnayake, Anuruddha (adr4zs) <adr4zs@virginia.edu>; sbs_gems@jlab.org<br>
<b>Subject:</b> Re: [Sbs_gems] [EXTERNAL] UV GEM 3 slot back plane fixes - positive results!<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">This is good news Anuruddha<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Also, the new APVs and MPDs we ordered have arrived. We can send them to you soon when someone is going to Jlab from here <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Kondo or Sean: if you are going to Jlab from here please let me know. <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Best<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Nilanga<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="color:black">From:</span></b><span style="color:black"> Sbs_gems <<a href="mailto:sbs_gems-bounces@jlab.org">sbs_gems-bounces@jlab.org</a>> on behalf of Anuruddha Rathnayake <<a href="mailto:adr4zs@virginia.edu">adr4zs@virginia.edu</a>><br>
<b>Sent:</b> Friday, December 10, 2021 5:04 PM<br>
<b>To:</b> <a href="mailto:sbs_gems@jlab.org">sbs_gems@jlab.org</a> <<a href="mailto:Sbs_gems@jlab.org">Sbs_gems@jlab.org</a>><br>
<b>Subject:</b> [Sbs_gems] [EXTERNAL] UV GEM 3 slot back plane fixes - positive results!</span>
<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">Dear All,<br>
<br>
We have tested both the fixes for 3 slot backplanes and finally got positive results. <o:p></o:p></p>
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Fix one is the termination of trigger and clock lines in the 3 slot backplane - see the attached picture "3slot_back_pane_fix.jpg"<o:p></o:p></li><li class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo1">
Fix two is the analog channel "shifter" - see "shifter_1.jpg" and "shifter_2.jpg". Ben found that the boards we got made had the analog channels incorrectly routed. Therefore, Armen and him found a fix for that by reversing the direction of the HDMI connector.<o:p></o:p></li></ol>
<p class="MsoNormal">I have attached the MPDLIbTest results and the raw APV frames of the first backplane we got fixed to test out the fixes. Both the tests give expected results now. I gave the remaining 15, 3 slot backplanes to Armen and he gave an estimation
of next week Tuesday-Wednesday for the completion of the job. <br>
<br>
Best,<br>
Anu<o:p></o:p></p>
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