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    User name Ramesh/Diancheng

    Log entry time 17:05:40 on November 10, 2009

    Entry number 298771

    This entry is a followup to: 298638

    keyword=bcm Dx3 check

    Diancheng and I checked all BCM signals in counting house middle room by
    looking on the scaler display. We unplugged one of the bcm signals and
    observed that it disappears on the scaler display and vice-versa. All
    signals respond correctly except d3. The signal d3 is on the scope but
    never appears on the scaler display. We checked the scaler map, found
    nothing wrong. There are two possible solutions:

    1. The connection between counting house patch pannel to the detector
    stack scaler is broken somewhere; need to check in next access.

    2. May be we overlooked the real channel for d3 in LeCroy Module in
    detector hut; need to recheck in next access.