<html><body><div style="font-family: tahoma,new york,times,serif; font-size: 14pt; color: #009900"><div>so the crate and the controller will be sent back by yuri as he mentioned in his earlier email.<br></div><div>so much overhead for so little work, just wow!<br data-mce-bogus="1"></div><div><br></div><hr id="zwchr" data-marker="__DIVIDER__"><div data-marker="__HEADERS__"><b>From: </b>"Chris Cuevas" <cuevas@jlab.org><br><b>To: </b>"Brian Eng" <beng@jlab.org><br><b>Cc: </b>"Yuri Gotra" <gotra@jlab.org>, "Amrit Yegneswaran" <yeg@jlab.org>, "dsg-svt" <dsg-svt@jlab.org>, "Latifa Elouadrhiri" <latifa@jlab.org>, "Patrizia Rossi" <rossi@jlab.org><br><b>Sent: </b>Friday, February 2, 2018 8:55:05 PM<br><b>Subject: </b>Re: [dsg-svt] SVT LV/HV MPOD Crate #5<br></div><div><br></div><div data-marker="__QUOTED_TEXT__">Hi Brian, If the AC input circuit is similar to the vme crate power supplies, then there is an internal fuse. WIENER recommends sending them back if the internal fuse opens, because they can check other parts of the input protection circuit and verify proper integrity. You are welcome to bring the supply section over to eel 109 for a quick check, and if the fuse is open, we can ask the WIener folks for further guidance. Enjoy the weekend, Chris ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ----- Original Message ----- From: Brian Eng To: Yuri Gotra Cc: Amrit Yegneswaran , Chris Cuevas , dsg-svt , Latifa , Patrizia Rossi Sent: Fri, 02 Feb 2018 17:04:25 -0500 (EST) Subject: Re: [dsg-svt] SVT LV/HV MPOD Crate #5 Tyler and I narrowed it down to a faulty power supply in the MPOD that is having issues, so at least the entire crate doesn't need to get sent back. Chris, Do you know if these have a fuse/breaker in them? Maybe it's something simple and doesn't need to even get sent back? I'm not sure if you guys work on these supplies or not though. All the MPODs in the EEL (4 of them: 2 in EEL/125 [from R4], 1 in EEL/124 [long term module test], 1 in EEL/121C [test & development]) have been updated to the latest working firmware for the controller and display as well. > On Feb 2, 2018, at 3:08 PM, Yuri Gotra wrote: > > Ok, I'll take care of it. > > On 2/2/18 2:55 PM, Amrit Yegneswaran wrote: >> this is HallB's (engineering) / SVT group task. >> if my memory serves right there were several meetings on this matter, (like with cleaning rm 124/125): >> the outcome was DSG is not responsible for accounting of the spares, for being custodians of the spares, and for ensuring spares are sent for repairs and returned. >> this is each hall's, and each detector manager's task. >> >> >> >> From: "Yuri Gotra" >> To: "Chris Cuevas" , "dsg-svt" , "Volker Burkert" >> Cc: "Patrizia Rossi" >> Sent: Friday, February 2, 2018 2:32:34 PM >> Subject: Re: [dsg-svt] SVT LV/HV MPOD Crate #5 >> >> Thank you Chris, >> >> Then the crate should be sent to Wiener. I'd like to ask DSG to contact >> them for the RMA. >> >> >> On 2/2/18 2:29 PM, Chris Cuevas wrote: >> > >> > Hi Yuri/All, >> > >> > I recommend following WIENER's advice. Sounds like this problem crate >> > has intermittent power, so trying to upgrade the firmware may cause >> > even more >> > problems. >> > >> > Good to know that you have other spare MPOD units, so the repair does >> > not have to incur expedited repair/shipping charges. >> > >> > Regards, >> > -Chris<br></div><div id="SL_balloon_obj" alt="0" style="display: block;"><div id="SL_button" class="SL_ImTranslatorLogo" style="background: rgba(0, 0, 0, 0) url("moz-extension://9a02252d-fe80-4f21-89c6-673418b2428d/content/img/util/imtranslator-s.png") repeat scroll 0% 0%; display: none; opacity: 1;"></div><div id="SL_shadow_translation_result2" style="display: none;"></div><div id="SL_shadow_translator" style="display: none;"><div id="SL_planshet"><div id="SL_arrow_up" style="background: rgba(0, 0, 0, 0) url("moz-extension://9a02252d-fe80-4f21-89c6-673418b2428d/content/img/util/up.png") repeat scroll 0% 0%;"></div><div id="SL_Bproviders"><div class="SL_BL_LABLE_ON" title="Google" 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