0000422: The TP of Band7,4X is unstable, intermittent.
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ID Category Severity Reproducibility Date Submitted Last Update
0000422 [DZB] 0.unknown/unspecified major sometimes 08-01-13 10:28 08-02-13 08:50
Reporter Yuan Tang View Status public  
Assigned To Juergen Morawietz
Priority normal Resolution open  
Status closed  
Summary 0000422: The TP of Band7,4X is unstable, intermittent.
Description The TP of Band7,4X is unstable, intermittent.
Additional Information
nr subbands 1
nr polarisations
nr channels
bandwidth
multi-subarray no
recirculation no
Attached Files

- Relationships

- Notes
(0000403)
Juergen Morawietz
08-01-13 16:49

 Found a stuck sampler unit.

Replaced the sampler unit with (not used) 5X sampler on the same ADU board.

Defect unit is now in 5X since the software expects an unit on the ADU.

Changed status to "testing"

Juergen, 8.1.2013
 
(0000406)
Juergen Morawietz
08-01-13 16:55

 BTW: checked also IVC power supply unit of 4.
 
(0000411)
Juergen Morawietz
08-02-13 08:50

 8.2.2013
Problem seems to be solved. -> Status: closed
 

- Issue History
Date Modified Username Field Change
08-01-13 10:28 Yuan Tang New Issue
08-01-13 10:28 Yuan Tang nr subbands  => 1
08-01-13 10:28 Yuan Tang multi-subarray  => no
08-01-13 10:28 Yuan Tang recirculation  => no
08-01-13 10:29 Yuan Tang Assigned To  => Juergen Morawietz
08-01-13 10:29 Yuan Tang Status new => assigned
08-01-13 16:49 Juergen Morawietz Note Added: 0000403
08-01-13 16:49 Juergen Morawietz Status assigned => testing
08-01-13 16:55 Juergen Morawietz Note Added: 0000406
08-02-13 08:50 Juergen Morawietz Note Added: 0000411
08-02-13 08:50 Juergen Morawietz Status testing => closed