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

[Chris Cuevas]

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
~~~~~~~~~~~~~

On 2/2/2018 1:57 PM, Yuri Gotra wrote:
>
> Before sending it for repairs it might be useful to try upgrading the 
> firmware and check if Fast Electronics group could take a look at it 
> (cc'd Chris). We have other spare MPOD crates available.
>
>
> On 2/2/18 1:22 PM, Tyler Lemon wrote:
>> Hello,
>>
>> DSG has been developing a test station to test SVT's MPOD power 
>> supplies using SVT LV/HV crate #5 that been in DSG's control room.
>>
>> In development of the tests station, we have found that SVT LV/HV 
>> crate #5 and its control board do not work correctly. The control 
>> board for this crate stopped working and now the crate no longer 
>> stays powered.
>>
>> The crate was tested with an additional MPOD controller card (Serial 
>> # 4688009; borrowed on Wednesday January 31, 2018) to confirm the 
>> crate is no longer working. The control board borrowed on Wednesday 
>> has been returned to MPOD crate #2 in EEL 125 and it was verified 
>> that the returned control board works correctly and the crate is able 
>> to be powered.
>>
>> After contacting WIENER and describing the issues with both the crate 
>> and control board, they recommend sending both in for repairs.
>>
>> Because this MPOD crate is a spare for SVT, Amrit has advised that it 
>> is Hall B's decision on whether to send the crate and control board 
>> off for repair. If they should be sent for repairs, Hall B or SVT 
>> group should submit the RMA request to WIENER and arrange the shipping.
>>
>> Best regards,
>> Tyler
>>
>>
>> _______________________________________________
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>> dsg-svt at jlab.org
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>

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