[Halld-tracking-hw] FDC status

[Lubomir Pentchev]

Hi all,

Just wanted to update you on the FDC insertion and testing.

FDC was inserted yesterday and it took about 3 hours (excluding cable 
routing on the face of the magnet). Right after that FDC was re-connected 
to the gas and cooling system and the LV  was turned on. Then looking at 
the LV currents, we found one LV connector was disconnected from the 
pre-amp (that was OK before); it's in the third package serving 24 
half-length strips. Today I was able to look at the connector from 
the downstream using a fancy HD videoscope. It  looks the connector is in 
place (picture attached) just pulled out a little, so we may have a 
chance to fix it. I found one  wire (yellow) separated from the rest of 
the wires that go to the next  connector, most likely this wire got caught 
somehow during insertion. Dave  is working on a tool that can be used to 
push the connector and we will try it on Monday. If it doesn't work the 
plan is, on Tuesday morning, to  get the FDC partially back on the 
platform, fix the connector and then push it back in place.

Other than this connector issue, everything else is OK: gas, HV is stable. 
Anatoly already tested half of the channels (all the racks at one side) 
with a scope and there are no surprises there. The plan is to finish 
this tests by Monday.

Regards,
  Lubomir
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