[dsg-svt] SVT LV/HV MPOD Crate #5

[Brian Eng]

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 <gotra at jlab.org> 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" <gotra at jlab.org>
>> To: "Chris Cuevas" <cuevas at jlab.org>, "dsg-svt" <dsg-svt at jlab.org>, "Volker Burkert" <burkert at jlab.org>
>> Cc: "Patrizia Rossi" <rossi at jlab.org>
>> 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