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    User name sawatzky

    Log entry time 00:10:26 on April 24, 2006

    Entry number 171677

    keyword=Lumi 6 & 7 signals NOT connected to upstairs patch panel

    I just made a quick check on the signals for lumi 6 and 7 that Doug patched through to the upstairs patch panel 41 and 42 back on March 8 (HALOG #165765).

    The signals observed at that time are no longer present. All I see is a 60 Hz ripple on PP41 and 42 that isn't on other patch-panel connections -- something's plugged in there, but it isn't very useful.

    The PMTs are drawing current so it's almost certainly a cabling problem. We'll have to get this worked out Monday prior to the pulsed beam tests.

    A copy of this log entry has been emailed to: bogdanw@jlab.org, feuerbac@jlab.org, brads@jlab.org