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User name Moffit
Log entry time 12:02:03 on March 24, 2009
Entry number 266535
Followups:
keyword=BB level translator for TS signalsTook at few test measurements of the level translator that feeds the ECL triggers to the Trigger Supervisor.
Found that Channel 4 is bad. First attachment shows the NIM output (dark blue) and input signal (light blue). There's no output on the ECL line. The NIM output is fed into the TDC, which might pick it up... and it's definitely picked up by the downstream discriminator that sends the triggers to the LeftHRS. It's just not clear that the TS was getting any triggers from 4.
Channel 11 is also bad. Just there's no ECL or NIM output at all.
A copy of this log entry has been emailed to: brads,kalyan
Figure 1
