RE: cable 38 is fixed

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From: Xu, Zhangbu (xzb_at_bnl.gov)
Date: Sun Apr 20 2003 - 21:14:42 EDT

Hi, Bill:
   I need another access to fix the veto logic, the TTL is a
complemented signal.
Thanks!
          Zhangbu

-----Original Message-----
From: Geary Eppley
To: Xu, Zhangbu
Cc: Christie, William; TOFp Operations
Sent: 2003-4-20 19:37
Subject: cable 38 is fixed

Hi,

We had sort controlled access around 1730 when I conveniently happened
to
be visiting STAR. I put my finger on cable 38 at the discriminator and
the
noise stopped. I removed the cable. The noise rate dropped from 300 kHz
to
zero. The TOFr HV was off at the time, So cable 38 is a bad
discriminator
output, not a hot TOFr channels.

Hope nothing else is hot when we turn on HV tonight but we have never
had
a hot channels so it should be fine.

Geary

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