<!-- Title: 18:23:17  Sun Jan  6 2002 -->
<!-- Crewchief: Evelyn -->
<!-- Op1: Cheng-Ju -->
<!-- Op2: Jay -->
<!-- Op3: Jong-young -->
<!-- Op4: Nathan -->
<!-- Op5: &nbsp; -->
<!-- Op6: &nbsp; -->
<!-- Notes: -->
<pre><h1>New page for new year</h1>
XFT WEB PAGES are at cdfpc2.mps.ohio-state.edu/xft/
Pager schedule
===============================================
Dec 28 -> Jan 8         Jong-Young Chung
Jan  8 -> Jan 22        Evelyn Thomson
Jan 22 -> Feb  5        Cheng-Ju Lin
Feb  5 -> Feb 19        Jong-Young Chung
Feb 19 -> Mar  5        Evelyn Thomson
Mar  5 -> Mar 19        Cheng-Ju Lin
Mar 19 -> Apr  2        Jong-Young Chung
Apr  2 -> Apr 16        Evelyn Thomson
================================================
 
 </pre>


<!-- Date: Sun Jan 6 18:31:19 2002 -->
<center><a href='/cgi/elog/det-system-elog.pl?nb=xft&action=view&page=-298&button=yes' target='xxx' onclick='jswindow()'><img src='/cgi/elog/det-system-elog.pl?nb=xft&action=view&page=-298' width='300'></a><a href='/cgi/elog/det-system-elog.pl?nb=xft&action=view&page=-299&button=yes' target='xxx' onclick='jswindow()'><img src='/cgi/elog/det-system-elog.pl?nb=xft&action=view&page=-299' width='300'></a><a href='/cgi/elog/det-system-elog.pl?nb=xft&action=view&page=-300&button=yes' target='xxx' onclick='jswindow()'><img src='/cgi/elog/det-system-elog.pl?nb=xft&action=view&page=-300' width='300'></a></center>
<!-- Author: jong-young -->
<!-- Comment: Sun Jan  6 18;33;51 comment by...jong-young -->
<BR>During my shift time, CO reported me there are several mismatch<BR>
spots and connection. this is from run  136327 which was over 10 hour long. 
<BR>Do you have any idea about this?

<!-- Comment: Sun Jan  6 18;36;42 comment by...jong-young -->
Here is the full listing,
<pre>
 ******* XFTTrigger Log File ****** 
 RUN NUMBER =  136327
 ********************************** 
136327/364547 COSWT-1 b0cot03 8 A b0xft02 8 1A 0 0000 1000 0000 0000 S
136327/364547 COSWT-1 b0cot03 8 A b0xft02 8 1A 0 0010 1111 1110 0000 R
136327/364547 COSWT-1 b0cot03 8 A b0xft02 8 1A 0  EWB  XXX XXX       D
136327/569506 b0xft01 10 INPUT FORMATTER 0 RAM 1 WORD 1 FINDER CHIP 3D  CELL 0 0000 0000 0000 F
136327/569506 b0xft01 10 INPUT FORMATTER 0 RAM 1 WORD 1 FINDER CHIP 3D  CELL 0 0101 0000 0000 L
136327/569506 b0xft01 10 INPUT FORMATTER 0 RAM 1 WORD 1 FINDER CHIP 3D  CELL 0  X X           D
136327/569506 b0xft01 10 INPUT FORMATTER 0 RAM 1 WORD 1 FINDER CHIP 3D  CELL 2 0000 0000 0000 F
136327/569506 b0xft01 10 INPUT FORMATTER 0 RAM 1 WORD 1 FINDER CHIP 3D  CELL 2 0000 0000 1111 L
136327/569506 b0xft01 10 INPUT FORMATTER 0 RAM 1 WORD 1 FINDER CHIP 3D  CELL 2           XXXX D
136327/569506 b0xft01 10 INPUT FORMATTER 0 RAM 0 WORD 0 FINDER CHIP 1A  CELL 3 0000 0000 0000 F
136327/569506 b0xft01 10 INPUT FORMATTER 0 RAM 0 WORD 0 FINDER CHIP 1A  CELL 3 1000 0000 0000 L
136327/569506 b0xft01 10 INPUT FORMATTER 0 RAM 0 WORD 0 FINDER CHIP 1A  CELL 3 X              D
136327/569506 b0xft01 10 INPUT FORMATTER 0 RAM 0 WORD 1 FINDER CHIP 1B  CELL 0 0000 0000 0000 F
136327/569506 b0xft01 10 INPUT FORMATTER 0 RAM 0 WORD 1 FINDER CHIP 1B  CELL 0 0000 0000 0001 L
136327/569506 b0xft01 10 INPUT FORMATTER 0 RAM 0 WORD 1 FINDER CHIP 1B  CELL 0              X D
136327/569506 b0xft01 10 INPUT FORMATTER 0 RAM 0 WORD 1 FINDER CHIP 1B  CELL 1 0000 0000 0000 F
136327/569506 b0xft01 10 INPUT FORMATTER 0 RAM 0 WORD 1 FINDER CHIP 1B  CELL 1 0000 0011 1000 L
136327/569506 b0xft01 10 INPUT FORMATTER 0 RAM 0 WORD 1 FINDER CHIP 1B  CELL 1        XX X    D
136327/1703516 CONWT-1 b0cot02 15 B b0xft02 7 1B 3 0000 0000 0000 0000 S
136327/1703516 CONWT-1 b0cot02 15 B b0xft02 7 1B 3 0000 0010 0000 0110 R
136327/1703516 CONWT-1 b0cot02 15 B b0xft02 7 1B 3  EWB   X        XX  D
136327/1703516 b0xft03 8 INPUT FORMATTER 4 RAM 0 WORD 1 FINDER CHIP 1A' CELL 2 0110 0000 0000 F
136327/1703516 b0xft03 8 INPUT FORMATTER 4 RAM 0 WORD 1 FINDER CHIP 1A' CELL 2 0000 0000 0000 L
136327/1703516 b0xft03 8 INPUT FORMATTER 4 RAM 0 WORD 1 FINDER CHIP 1A' CELL 2  LL            D
136327/1703516 b0xft03 8 INPUT FORMATTER 4 RAM 1 WORD 0 FINDER CHIP 1B' CELL 3 0010 0000 0110 F
136327/1703516 b0xft03 8 INPUT FORMATTER 4 RAM 1 WORD 0 FINDER CHIP 1B' CELL 3 0000 0000 0000 L
136327/1703516 b0xft03 8 INPUT FORMATTER 4 RAM 1 WORD 0 FINDER CHIP 1B' CELL 3   L        LL  D
136327/1703516 b0xft03 10 INPUT FORMATTER 0 RAM 0 WORD 0 FINDER CHIP 1A  CELL 2 0110 0000 0000 F
136327/1703516 b0xft03 10 INPUT FORMATTER 0 RAM 0 WORD 0 FINDER CHIP 1A  CELL 2 0000 0000 0000 L
136327/1703516 b0xft03 10 INPUT FORMATTER 0 RAM 0 WORD 0 FINDER CHIP 1A  CELL 2  LL            D
136327/1703516 b0xft03 10 INPUT FORMATTER 0 RAM 0 WORD 1 FINDER CHIP 1B  CELL 3 0010 0000 0110 F
136327/1703516 b0xft03 10 INPUT FORMATTER 0 RAM 0 WORD 1 FINDER CHIP 1B  CELL 3 0000 0000 0000 L
136327/1703516 b0xft03 10 INPUT FORMATTER 0 RAM 0 WORD 1 FINDER CHIP 1B  CELL 3   L        LL  D
136327/2207889 COSET-3 b0cot15 13 B b0xft04 15 4B 3 0000 0000 0000 0000 S
136327/2207889 COSET-3 b0cot15 13 B b0xft04 15 4B 3 0100 1100 0000 0000 R
136327/2207889 COSET-3 b0cot15 13 B b0xft04 15 4B 3  EWB XX             D
136327/2660357 COSWB-1 b0cot06 6 A b0xft04 9 1A 0 0000 0000 0000 0000 S
136327/2660357 COSWB-1 b0cot06 6 A b0xft04 9 1A 0 0010 0000 0100 0000 R
136327/2660357 COSWB-1 b0cot06 6 A b0xft04 9 1A 0  EWB       X        D
136327/2660357 b0xft05 10 INPUT FORMATTER 4 RAM 1 WORD 0 FINDER CHIP 1B' CELL 2 0000 0000 0000 F
136327/2660357 b0xft05 10 INPUT FORMATTER 4 RAM 1 WORD 0 FINDER CHIP 1B' CELL 2 1100 0000 0000 L
136327/2660357 b0xft05 10 INPUT FORMATTER 4 RAM 1 WORD 0 FINDER CHIP 1B' CELL 2 XX             D
136327/2660357 b0xft05 10 INPUT FORMATTER 4 RAM 1 WORD 0 FINDER CHIP 1B' CELL 3 0000 0000 0000 F
136327/2660357 b0xft05 10 INPUT FORMATTER 4 RAM 1 WORD 0 FINDER CHIP 1B' CELL 3 0000 0000 0011 L
136327/2660357 b0xft05 10 INPUT FORMATTER 4 RAM 1 WORD 0 FINDER CHIP 1B' CELL 3             XX D
136327/2660357 b0xft05 12 INPUT FORMATTER 0 RAM 0 WORD 1 FINDER CHIP 1B  CELL 2 0000 0000 0000 F
136327/2660357 b0xft05 12 INPUT FORMATTER 0 RAM 0 WORD 1 FINDER CHIP 1B  CELL 2 1100 0000 0000 L
136327/2660357 b0xft05 12 INPUT FORMATTER 0 RAM 0 WORD 1 FINDER CHIP 1B  CELL 2 XX             D
136327/2660357 b0xft05 12 INPUT FORMATTER 0 RAM 0 WORD 1 FINDER CHIP 1B  CELL 3 0000 0000 0000 F
136327/2660357 b0xft05 12 INPUT FORMATTER 0 RAM 0 WORD 1 FINDER CHIP 1B  CELL 3 0000 0000 0011 L
136327/2660357 b0xft05 12 INPUT FORMATTER 0 RAM 0 WORD 1 FINDER CHIP 1B  CELL 3             XX D
136327/2716153 COSET-3 b0cot15 12 B b0xft04 15 4D 0 0000 0100 0000 0000 S
136327/2716153 COSET-3 b0cot15 12 B b0xft04 15 4D 0 0110 1100 1010 0000 R
136327/2716153 COSET-3 b0cot15 12 B b0xft04 15 4D 0  EWB X    X X       D
136327/2716153 COSET-3 b0cot15 12 B b0xft04 15 4D 1 0000 0000 0000 0001 S
136327/2716153 COSET-3 b0cot15 12 B b0xft04 15 4D 1 0100 0000 0000 0000 R
136327/2716153 COSET-3 b0cot15 12 B b0xft04 15 4D 1  EWB              L D
</pre>

<!-- Comment: Mon Jan 7 12:02:40 2002 comment by...evelyn -->
<table><tr><td><a href=/elog/notebooks/xft/Mon_Jan__7_2002_120234.ps align=top><img src=/cgi/elog/det-system-elog.pl?nb=xft&action=view&page=-306  align='top'></td><td>Occupancies are flat (except for masked on wires) in long run </a></td></tr></table>



<!-- Comment: Mon Jan  7 11;33;49 comment by...Evelyn Thomson -->
<pre>        Finder b0xft04 15 4b and 4d have an error bit set and are a known
but unsolved problem - Jay and Cheng-Ju have seen this from the finder
error registers.

Finders b0xft02 slot 7 1B, b0xft02 slot 8 1A, b0xft04 slot 9 1A are all
extra bits.

Linker b0xft03 slot 8 and 10 is a result of the error on finder b0xft02
slot 7 1B, though bits from 1a are lost at the linker as well.

Linker b0xft05 slot 10 and 12 1B problems occur on the same event as the
problem in finder b0xft04 slot 9 1A, although neither of these linkers
receive data from this finder.  Does this indicate a general glitch for
several boards?

Linker b0xft01 slot 10, 3D, 1A, 1B had extra bits, all on IF 0.  There
were no complaints over in slot 8, which must have received the 1a and 1b
correctly.

</pre>
<!-- Date: Mon Jan 7 11:27:48 2002 -->
<center><a href='/elog/notebooks/xft/Mon_Jan__7_2002_112716.ps'><img src='/cgi/elog/det-system-elog.pl?nb=xft&action=view&page=-302' ></a><a href='/elog/notebooks/xft/Mon_Jan__7_2002_112729.ps'><img src='/cgi/elog/det-system-elog.pl?nb=xft&action=view&page=-304' ></a></center>
<!-- Author: Evelyn Thomson -->
<!-- Comment: Mon Jan  7 11;32;24 comment by...Evelyn Thomson -->
<pre>Linker INPUT FORMATTER error messages for recent runs.  ALL
errors are from SL13 boards and occur at a very low rate.  This
suggests something is slightly wrong with a finder SL13 FPGA
design.

First file is runs from Jan 2- Jan 7 04:56
Second file is Dec 16 to Dec 31, minus runs with COT TDC crate
power supply failure and run 135619, where all SL13 boards and
all chips on linker board in b0xft05 slot 16 had errors on one
event.

</pre>



<!-- Comment: Mon Feb  4 10;56;48 comment by...Cheng-Ju Lin -->
<pre>In subsequent runs, some of the Linker chip fromatter errors
are associated with SL24 pixel chips, not just exclusively SL13
pixel chips (see XFT e-log entry Mon Feb 4 10:46:06).</pre>
<!-- Date: Mon Jan 7 11:47:16 2002 -->
<pre>COT power supply b0cot15 failed at 03:48 on Jan 7.  Many errors in elog files.</pre>

<table><tr><td><a href=/elog/notebooks/xft/Mon_Jan__7_2002_150112.ps align=top><img src=/cgi/elog/det-system-elog.pl?nb=xft&action=view&page=-308  align='top'></td><td>Effect of b0cot15 failure - no track segments in one region of SL2 and SL4.  Strange effects at edge due to sharing of information from TDCs.</a></td></tr></table>
<!-- Author: Evelyn Thomson -->


<!-- Date: Thu Jan 10 15:30:12 2002 -->
<pre>XFT has unmasked SL2 quadrant A sense wire layers 7 and 8, 
except for Sl2 cell 30 wire 7, which was causing the trips.</pre>
<!-- Author: Evelyn Thomson -->


<!-- Date: Mon Jan 14 17:17:33 2002 -->
<pre>During the supervised access last wednesday, Jay and I swapped a few TDC anc XTC cards.  Here is the summary: 
 
1) B0COT07 slot 12 --&gt; B0XFT04 slot 11 3B:  
   Removed XTC#152 and installed XTC#241 
 
2) B0COT16 slot 14 --&gt; B0XFT04 slot 17 4C:  
   Removed TDC#547/XTC#104, installed TDC#734/XTC#91 
 
3) B0COT15 slot 12 --&gt; B0XFT04 slot 15 4C: 
   Removed XTC#109, installed XTC#112 
 
4) B0COT13 slot 15 --&gt; B0XFT02 slot 18 4D,4E: 
   Removed TDC#736/XTC#189, installed TDC#279/XTC#54 
 
5) B0COT13 slot 9 (Mike Kirby's work): 
   Installed TDC#267/XTC#242</pre>
<!-- Author: Cheng-Ju -->


<!-- Date: Mon Jan 14 17:49:19 2002 -->
<pre>Possible problem with this TDC?  See a hole in SL2 occupancy in  
run 136955 (13 January)? 
 
COT SL4 cells 132-139 are all cold by 30-40% for prompt, delayed 
and prompt+delayed hits. 
 
finders are  2b and 2c in b0xft04 slot 14  
TDC?XTC is b0cot15 slot 6, I think. </pre>
<!-- Author: Evelyn Thomson -->


<!-- Date: Mon Jan 14 17:56:08 2002 -->
<center><a href='/elog/notebooks/xft/Mon_Jan_14_2002_175126.ps'><img src='/cgi/elog/det-system-elog.pl?nb=xft&action=view&page=-310' ></a><a href='/elog/notebooks/xft/Mon_Jan_14_2002_175253.ps'><img src='/cgi/elog/det-system-elog.pl?nb=xft&action=view&page=-312' ></a><a href='/elog/notebooks/xft/Mon_Jan_14_2002_175351.ps'><img src='/cgi/elog/det-system-elog.pl?nb=xft&action=view&page=-314' ></a></center>
<!-- Author: Evelyn Thomson -->


<!-- Date: Tue Jan 15 17:50:28 2002 -->
<pre>Ran finder input capture test on all XTC (except the ones in 
B0COT16 due to power supply failure).  Confirmed the XTC 
problem seen by Evelyn.  Will replace the XTC in B0COT15 slot 6 
during the next access. 
 
The results of the capture test are listed below: 
(Ran 100evts/10 iterations) 
 
B0COT00 : OKAY 
B0COT01 : OKAY 
BOCOT02 : OKAY 
BOCOT03 : OKAY 
BOCOT04 : OKAY 
BOCOT05 : OKAY 
B0COT06 : OKAY 
B0COT07 : OKAY 
B0COT08 : OKAY 
BOCOT09 : OKAY 
B0COT10 : OKAY 
B0COT11 : OKAY 
B0COT12 : OKAY 
B0COT13 : OKAY 
BOCOT14 : OKAY 
 
B0COT15 :  
 B0XFT04 SLOT 14 --&gt; BAD XTC B0COT15 SLOT 6A (MISSING BIT 0X20) 
 [M] Event  2/   1 F:14/02  Word=04:6 w=2A3A6 r=2A386 x=   20 
 [P] Event  2/   1 F:14/02  58F1 8BFB 753A F5BD C54F A3A6 
 [M] Event  2/   1 F:14/02  Word=10:6 w= A3A6 r= A386 x=   20       
 [P] Event  2/   1 F:14/02  58F1 8BFB 753A F5BD C54F A3A6  
 [M] Event  2/   1 F:14/02  Word=16:6 w= A3A6 r= A386 x=   20              
 
B0COT16 : NOTE TESTED (DEAD POWER SUPPLY) 
 
B0COT17 : OKAY 
B0COT18 : OKAY 
B0COT19 : OKAY 
 
</pre>
<!-- Author: Cheng-Ju -->


<!-- Date: Wed Jan 16 20:01:13 2002 -->
<pre>During the supervised access today, the following actions 
were taken: 
  - Removed XTC#134 from B0COT15 slot 6, installed XTC#602 
    This should fix the dip in the segment occupancy. 
 
  - Interchanged TDC's in B0COT07 slot 12 and 14. 
    If the error bit seen in B0XFT04 slot 11 is due 
    to TDC/XTC problem, the error bit should move to 
    slot 10 after the swap. 
 
  - Bill Orejudas replaced three TDC's in axial layers 
    B0COT09, slot 16:   #202--&gt; #199/xtc=51  
    B0COT13, slot 15:   #279--&gt; #313/xtc=166 
    B0COT18, slot  4:   #193--&gt; #295/xtc=186 
</pre>
<!-- Author: Cheng-Ju Lin -->
<!-- Comment: Thu Jan 17 14;46;25 comment by...Cheng-Ju -->
<pre>The error bit stays in slot 11.  This eliminates the TDC/XTC as
well as the finderboard (we have previously swapped the
finderboards and saw the error bits stay in the same slots) as
the culprit of the error bit problem.  

In addition, we have swapped the TDC/XTC's that are linked to
B0XFT04 slot 17 and B0XFT02 slot 18.  We have also put in a
different XTC for the finderboard in B0XFT04 slot 15 (see e-log
entry for Mon Jan 14 17:17:33).  The bottom line is that swapping
TDC and XTC have not solved the error bit problem.  The
finderboards are probably not the source (this is confirmed on
two finders by swapping slots) of the problem either.  Will look
into ansley cable, transition cards and VME backplane for more
clues.</pre>
<!-- Date: Thu Jan 17 12:12:27 2002 -->
<table><tr><td><a href=/elog/notebooks/xft/Thu_Jan_17_2002_121203.ps align=top><img src=/cgi/elog/det-system-elog.pl?nb=xft&action=view&page=-318  align='top'></td><td>Replacing the bad XTC (in B0COT15 slot 6) has eliminated the dip in segment occupancy in SL2.</a></td></tr></table>
<!-- Author: Cheng-Ju Lin -->


<!-- Date: Thu Jan 17 12:19:33 2002 -->
<center><a href='/elog/notebooks/xft/Thu_Jan_17_2002_121744.ps'><img src='/cgi/elog/det-system-elog.pl?nb=xft&action=view&page=-320' ></a><a href='/elog/notebooks/xft/Thu_Jan_17_2002_121827.ps'><img src='/cgi/elog/det-system-elog.pl?nb=xft&action=view&page=-322' ></a><a href='/elog/notebooks/xft/Thu_Jan_17_2002_121852.ps'><img src='/cgi/elog/det-system-elog.pl?nb=xft&action=view&page=-326' ></a><a href='/elog/notebooks/xft/Thu_Jan_17_2002_121903.ps'><img src='/cgi/elog/det-system-elog.pl?nb=xft&action=view&page=-328' ></a><a href='/elog/notebooks/xft/Thu_Jan_17_2002_121842.ps'><img src='/cgi/elog/det-system-elog.pl?nb=xft&action=view&page=-324' ></a></center>
<!-- Author: evelyn thomson -->
<!-- Comment: Thu Jan 17 12;27;05 comment by...Evelyn Thomson -->
<pre>XTRP had problems last night - shift crew noticed sympton that 
wedges 18-22 were not firing CMU triggers.  There seem to
be more things wrong than just that though

Plots on left hand-side are before Nathan reseated boards.  
Plots on right hand-side are afterwards.

See that the red hot spots in linker boards 23 and 0 
(xtrp wedges 16 and 18) go away.  See that XTRD-XFLD input
mismatch errors decrease for these wedges too.  There is
still a high rate of errors for XTRD-XFLD input mismatch
though, concentrated in the second half of the crate. 
XTRP has known connector problems but I need to find out how
bad this really is (are the errors pt bits or phi bits or track
bits?)

Still see hot spots in chips 72,74,76 on board 0 aka xtrp wedge
6 chips 0,2,4.  This looks like a connector problem but it
affects the trigger rate.  I think it also gives rise
to a hot band in the DIRAC canvas for wedge 6.

Also sometimes see inefficiencies in chips 162,164,166 on board
7 aka xtrp wedge 13 chips 6,8,10.  This also looks like a 
connector error but means we are missing tracks!
</pre>



<!-- Date: Mon Jan 21 08:13:29 2002 -->
<table><tr><td><a href=/elog/notebooks/xft/Mon_Jan_21_2002_081319.ps align=top><img src=/cgi/elog/det-system-elog.pl?nb=xft&action=view&page=-330  align='top'></td><td> </a></td></tr></table>
<!-- Author: jong-young -->
<!-- Comment: Mon Jan 21 11;10;28 comment by...Evelyn Thomson -->
<pre>        Thank you very much for noticing this and for telling me.  The
problems are due to bad connections between the XTRP boards and the
backplane.  The structure of groups of n,n+2,n+4 hot bins in phi are
because three bins are sent over the same connection.
 
The bad connections changes the track pt at XTRP and this must be
increasing the the track/electron/muon trigger rate.  These extra triggers
all have a track of some sort in the problem phi bins, so there are spikes
in the linker track occupancy plot.
 
        You should page XTRP - they will try to reseat the XTRP boards to
improve the connections,
 
                Evelyn
 
 
On Mon, 21 Jan 2002, Xin WU wrote:
 
&gt;
&gt; Hi Evelyn,
&gt;
&gt; I am looking at some track trigger data and I have noticed
&gt; that there are some spikes in the XFLD phibin distribution
&gt; (bin 103, 105, 107, 187, 189, 191, 211, 213, 215), see the
&gt; attached plot. I wonder if you see the same thing. The data
&gt; is from run 137548.
&gt;
&gt;                                     Cheers,
&gt;
&gt;                                     Xin                        </pre>


<!-- Date: Tue Jan 22 16:04:03 2002 -->
<table><tr><td><a href=/elog/notebooks/xft/Tue_Jan_22_2002_160356.ps align=top><img src=/cgi/elog/det-system-elog.pl?nb=xft&action=view&page=-332  align='top'></td><td>Looks slightly less like a southwestern desert landscape today...XTRP connector problems better?</a></td></tr></table>
<!-- Author: Evelyn Thomson -->


<!-- Date: Sun Jan 27 15:56:59 2002 -->
<pre> 
At the request of COT experts, we have masked on all sense  
wire #1 in COT SL4 (cells 0-287) in the XFT hardware database.  
 
I have requested that the ACE do a cold start at the beginning 
of next run.  The masks should be loaded into the finderboards 
after RUN 138046.</pre>
<!-- Author: Cheng-Ju Lin -->
<!-- Comment: Tue Jan 29 12;44;13 comment by...Cheng-Ju -->
<pre>
COT folks have isolated the HV problem to one quadrant 
(cells 216-287).  The voltage for those cells is kept 
at 80V below nominal while the remaining cells (0-215)
in COT SL4 is set back to the nominal value.

I have unmask the corresponding cells (0-215) for XFT
in the hardware database.

</pre>


<!-- Date: Tue Jan 29 20:10:41 2002 -->
<pre>Ran finder input capture tests during TeV beam studies. 
The results are listed below: 
 
Ran finder input capture tests for 10K events and 10 iterations:  
 
B0COT00 : OKAY 
B0COT01 : OKAY 
B0COT02 : OKAY 
B0COT03 : OKAY 
B0COT04 : OKAY  (had rare zero problem before b0xft02 F:11/04) 
B0COT05 : OKAY 
B0COT06 : OKAY 
B0COT07 :  
B0COT08 : 2 rare zero occurances (known problem) 
 b0xft04 F:11/06 
 [M] Event     4964/   1 F:11/06  Word=27:5 w=  253 r=  273 x=   20  
 [P] Event     4964/   1 F:11/06  4922 84E0 5826 2CAA 025B DDAB 
 
 [M] Event     6172/   1 F:11/06  Word=18:2 w= 1250 r= 1350 x=  100 
 [P] Event     6172/   1 F:11/06  654A 5ED8 713A 738B 3D05 29A2    
 
B0COT09 : OKAY 
B0COT10 : 4 rare zero occurances (known problem) 
 b0xft00 F:18/02 
 [M] Event     3143/   1 F:18/02  Word=26:4 w= 496B r= 49EB x=   80 
 [P] Event     3143/   1 F:18/02  54B0 E4DB E2B5 496B 78F1 44A2    
  
 [M] Event     5150/   4 F:18/02  Word=62:4 w=  573 r=  5F3 x=   80 
 [P] Event     5150/   4 F:18/02  E4EC 2C9C FBE6 0573 74F0 2287     
 
 [M] Event     7202/   5 F:18/02  Word=46:6 w= 6464 r= 64E4 x=   80 
 [P] Event     7202/   5 F:18/02  9C9D 94FB 27F8 BB8C E0B6 6464     
 
 [M] Event     9869/   1 F:18/02  Word=32:4 w= 8B72 r= 8BF2 x=   80 
 [P] Event     9869/   1 F:18/02  3287 38EE 2EA8 8B72 7D85 5CD3  
 
B0COT11 : 1 rare zero occurance (known problem) 
 b0xft00 F:20/04 
 
 [M] Event     9984/   1 F:20/04  Word=29:1 w=10253 r=10273 x=   20 
 [P] Event     9984/   1 F:20/04  425B E427 EA76 3E3E B63F BAA8  
 
B0COT12 : OKAY 
B0COT13 : OKAY 
B0COT14 : OKAY 
 
B0COT15 : missing B0 bit (NEW PROBLEM, causing error bit in finder??) 
 b0xft04 F:15/08(4C chip) --&gt; b0cot15 slot 12A 
 [M] Event     3967/   1 F:15/08  Word=00:2 w=21409 r= 1409 x=20000 
 [P] Event     3967/   1 F:15/08  C1FF 1409 9ADA 7241 FC3D EBDA 
 
 [M] Event     7100/   1 F:15/08  Word=00:2 w=2D21F r= D21F x=20000 
 [P] Event     7100/   1 F:15/08  8C43 D21F EA2E BBBB F690 A9EB 
 
 [M] Event     7853/   1 F:15/08  Word=00:2 w=23D75 r= 3D75 x=20000 
 [P] Event     7853/   1 F:15/08  69BB 3D75 9D2D A60A 9CF5 2A6E 
 
B0COT16 : rare zero F:16/11, 17/06 (known problem) 
	  missing B0 F:17/08(4C chip) (New problem,  
                                       causing error bit in finder??) 
 
 [M] Event     4911/   1 F:16/11  Word=32:4 w= 1117 r= 1317 x=  200 
 [P] Event     4911/   1 F:16/11  DAB7 AEF8 6ECF 7517 FA18 F3D5 
 
 [M] Event     5668/   1 F:17/08  Word=00:2 w=2109C r= 109C x=20000  
 [P] Event     5668/   1 F:17/08  689F 109C C961 BF4E DB9C 9DBC  
 
 [M] Event     6129/   1 F:17/06  Word=48:2 w= 5101 r= 7101  x= 2000 
 [P] Event     6129/   1 F:17/06  2DCF 5101 212E 78DB FD8A 6A28  
 
 [M] Event     6550/   1 F:16/11  Word=33:5 w= 1156 r= 1356 x=  200   
 [P] Event     6550/   1 F:16/11  AAB1 5A57 2BE9 2A28 755E F21B 
 
 [M] Event     7147/   1 F:17/06  Word=30:2 w= D53E r= D73E x=  200  
 [P] Event     7147/   1 F:17/06  CA5A D53E 32F6 E282 6261 4689 
 
B0COT17 : OKAY 
B0COT18 : OKAY 
 
B0COT19 : rare zero (NEW PROBLEM??) 
  b0xft00 F:17/03, 18/00 
 [M] Event      720/   1 F:17/03  Word=38:4 w= 5832 r= 7832 x= 2000 
 [P] Event      720/   1 F:17/03  B84B 28BF 742E 5832 2711 BF83 
 [M] Event      720/  10 F:18/00  Word=38:4 w= 4800 r= 6800 x= 2000 
 [P] Event      720/  10 F:18/00  B84B 28BF 742E 5832 2711 BF83   
</pre>
<!-- Author: Cheng-Ju Lin -->


<!-- Date: Mon Feb 4 10:46:06 2002 -->
<table><tr><td><a href=/elog/notebooks/xft/Mon_Feb__4_2002_104554.ps align=top><img src=/cgi/elog/det-system-elog.pl?nb=xft&action=view&page=-338  align='top'></td><td>XFT TrigMon Summary for Run 138396</a></td></tr></table>
<!-- Author: Cheng-Ju Lin -->
<!-- Comment: Mon Feb  4 10;49;48 comment by...Cheng-Ju -->
<pre>Linker input formatter chip errors for run 138396.  These chips
are linked to a combination of SL13 and SL24 boards.</pre>



<!-- Date: Tue Feb 5 19:24:47 2002 -->
<pre>During the access today, Jay and I swapped the COT transition cards betwen B0COT07 slot 12 and 15.  This is to investigate 
the low level error bit seen in B0XFT04 slot 11.  The error 
bit remained in the same slot, which indicates that the 
COT transition board is not the issue.  We have previously 
eliminated the finderboard, TDC and XTC as the source of the 
problem.  We then started to swap ansley cables on the 
back of the COT crates.  However, due to the limited time of 
the access, the cable swap study was inconclusive.</pre>
<!-- Author: Cheng-Ju Lin -->


<!-- Date: Sun Feb 10 20:22:02 2002 -->
<pre>Evening shifts reported frequent XFT bunch counter mismatch errors. It happened in mainly run 138858, 138859, 138860. 
 
</pre>
<!-- Author: jy -->


<!-- Date: Fri Feb 15 10:39:10 2002 -->
This morning CO paged me about mismatches between XFFD and XFLD 
in several spots. 
see <a href= 
'/cgi/elog/elog.pl?nb=2002&action=view&page=136&frame=2&anchor=05:10:44'> 
this CO's e-log entry </a>
<!-- Author: jy -->
<!-- Comment: Fri Feb 15 10;57;04 comment by...jy -->
<pre>They are suspected caused from Finder errors below.</pre>
<!-- Date: Fri Feb 15 10:55:57 2002 -->
<table><tr><td><a href=/elog/notebooks/xft/Fri_Feb_15_2002_105551.ps align=top><img src=/cgi/elog/det-system-elog.pl?nb=xft&action=view&page=-342  align='top'></td><td> </a></td></tr></table>
<!-- Author: jy -->