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User name V. Sulkosky
Log entry time 15:44:33 on November 06, 2009
Entry number 297838
Followups:
keyword=R-HRS S1 ADCs
Bogdan began looking into the problems with the S1 ADCs. First to fix
the wide pedestal on left-side # 3 PMT (ADC channel 2), he switched
delay cables. He then began trouble-shooting the issue with ADC
channel #4 by switching ADC channels. Somehow the problem moved to ADC
channel 2. This is similar to what Diancheng found the other day.
I decided to reseat the ribbon cable in the ADC. I found that some
of the pins were bent for channels 0-15 in slot 25. I then decided to
use
a different set of 16 ADC channels for S1 in slot 23 channels
48-63. Here is the new
ADC map, I have updated the Podd database
accordingly:
Crate,Slot,1st,Last ADC chans,Beg S1 chan
-----------------------------------------------------------------------
1 23 54 57 1 1881 - ADCs pads 1-4 (right)
1 25 63 63 5 1881 - ADCs pads 5 (right)
1 23 59 59 6 1881 - ADCs pads 6 (right)
1 23 48 53 7 1881 - ADCs pads 7-12 (left)