[Halld-level1] 250s

Serguei Pozdniakov sergpozd at jlab.org
Fri Apr 18 08:16:08 EDT 2014


Dear All,

I installed five spare fADC250s from F117 Cabinet to FCAL South crates:

DI001366   ACDI-009  ->  "D2-6-MID" "fcal8"  Slot 7
DI001368   ACDI-444  ->  "D2-6-BOT" "fcal9"  Slot 3
DI001367   ACDI-453  ->  "D2-6-BOT" "fcal9"  Slot 6
DI001369   ACDI-096  ->  "D2-7-MID" "fcal11"  Slot 8
DI001376   ACDI-382  ->  "D2-7-BOT" "fcal12"  Slot 8

Information about new ones and bad fADC250s was updated in JInventory DB
with details about their problems.


Dear Fernando and Chris, yesterday I mentioned that VME64x crate 21 sl. 
"D2-1-BOT" "tof3"
does not have power cord. Could you find and install one.

VXS crate 21 sl. "D2-1-TOP" "tof1" updated with CPU, CTP and TI.
Fibers and net cables are connected. So it seems that this crate is 
ready for tests.


Regards, Serguei P.






On 4/17/14 3:36 PM, Fernando J Barbosa wrote:
> Hi John,
>
> Thanks for identifying the fADCs. The procedure is, however, for 
> Sergei to be the only person responsible for replacing these modules 
> as he needs to enter the info on the Jinventory and then these modules 
> will be forwarded to the appropriate experts for diagnostics, etc. 
> Thanks for following the Hall D procedures.
>
> Best regards,
> Fernando
>
>
> On 4/17/2014 3:28 PM, John Leckey wrote:
>> Hi All,
>>
>> I have removed 5 fadc250s from the south 6 fcal crates that all 
>> demonstrated a problem of some kind.  Below are the crate # (starting 
>> with 1), slot # and serial number.
>>
>> 2/7 = adc# 435 - ch3 would lock
>> 3/6 = adc# 478 - ch 6 and 7 (90% of the time) DAC value problem 
>> occasional whole board problem
>> 5/8 = adc# 277 - ch13 signal missing
>> 6/8 = adc# 252 - whole board occasional DAC problem
>> 3/3 = adc# 286 - ch1 time window moving problem
>>
>> I have dropped them off with Chris.
>>
>> Fernando, do you have 5 available to replace the 5 bad boards?
>>
>> Thanks
>> John 


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