<!-- Title: 09:37:42  Tue Feb 20 2001 -->
<!-- Crewchief: Gino -->
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<pre>Barrel 4 Wedge 4 Load Box Test  
Blnking lights test OK  
Trip test OK  
All Voltages OK  
No DBref test  
</pre>


<!-- Date: Wed Feb 21 09:41:15 2001 -->
MB, WJS tested with WiB1:<a href= 
'/cgi/elog/det-system-elog.pl?nb=silicon&action=view&page=9&frame=2&anchor=22:20:25'> 
OK</a> 
<!-- Author: SCN -->


<!-- Date: Sun May 6 20:51:17 2001 -->
<pre>Port card connected through junction board.  Everything appears 
normal.</pre>
<!-- Author: Paul Shepard/Yuri Gotra -->


<!-- Date: Tue May 8 14:24:15 2001 -->
I retested this wedge after it was covered by another one,  
<a href= 
'/cgi/elog/det-system-elog.pl?nb=silicon&action=view&page=25&frame=2&anchor=03:43:30'> 
here </a> is what I found.
<!-- Author: Petra -->


<!-- Date: Sun May 13 16:16:49 2001 -->
<pre>RTV'ed 
S4CEN SB4W4  
</pre>
<!-- Author: ADF/SF/VN -->


<!-- Date: Tue May 29 15:03:49 2001 -->
<pre>Crate Check  
 
Inits OK  
R/O- L3 bit 7 gets stuck high for just the first part of readout, 
resulting in extra chip ids with pedestals for cap id values...this was not seen before, but other problems have occured on this hdi 
 
Unbiased: laser504.svx 
Biased:   laser505.svx 
 
enable test- successful 
</pre>
<!-- Author: SCN, AF, VN -->


<!-- Date: Thu May 31 08:26:49 2001 -->
<pre>Measured light levels, found bit 7 has 390 uW, but 
also has a tail which does not fall below 50 uW until 
5-6 OBDVs after Chip ID-probably why this bit gets "stuck" 
and results in erroneous chip IDs.</pre>
<!-- Author: SCN -->


<!-- Date: Thu May 31 11:57:34 2001 -->
Light Levels 
<table> 
<tr> <th> Chan </th> <th> OBDV </th> <th> 0 </th> <th> 1 </th> <th> 2 </th> <th> 3 </th> <th> 4 </th> <th> 5 </th> <th> 6 </th> <th> 7 </th> </tr> 
<tr> <td> SB4W4-3 </td> <td> 260 </td> <td> 200 </td> <td> 220 </td> <td> 310 </td> <td> <font color=ff0000>90</font> </td> <td> 280 </td> <td> 360 </td> <td> 220 </td> <td> 390 </td> </tr> 
</table>  
<!-- Author: SCN -->


<!-- Date: Tue Jul 10 04:16:27 2001 -->
<pre>Pretesting for CDF Integration 
 
See same L3 errors as before 
 
Layers 0,1,2 OK 
Layer 3 errors 
Layer 4 suffers from L3 errors 
 
As with all wedges tested tonight, see large common 
mode noise &gt;20 counts.</pre>
<!-- Author: ADF -->


<!-- Date: Tue Jul 10 17:13:51 2001 -->
<pre> 
Funny bias currents on Layer 4.  
</pre> 
<br> 
<a href= 
'/cgi/elog/det-system-elog.pl?nb=silicon&action=view&page=51&frame=2&anchor=15:49:47'> 
Auke's entry </a>   
<!-- Author: Lester per Auke -->


<!-- Date: Tue Oct 9 16:40:37 2001 -->
<pre>we worked on B4W4L2 since it was excluded from running for unknown reasons. 
 
we found that it inits and reads out ok, but reads out only if  
also another channel of the same FIB is enabled, otherwise it  
doesn't give any data out. same problem when trying to run channel 0  
alone... 
we need to get back to this FIB, maybe with Ken.</pre>
<!-- Author: Petra, Mary, Natalia -->


<!-- Date: Thu Nov 8 16:28:56 2001 -->
<pre>summary from the access for L3 
============================== 
bit 7 is at the edges of saturation for the RX 
giving readout errors once in a while. FTM PROBLEM 
 
75187612 771c7825 791a7a16 7b137c13 7d167e16 7f24a014 00450146 02c00340  
04c00541 064407c0 084709c2 0ac60bc5 0c430dc2 0e430f41 10c21141 12421341  
14c21543 164217c1 18c319c3 1aca1bc0 1c411dc0 1ec21f41 20402142 22c12342  
24452546 264327c0 284029da 2ad42bc0 2cc62dc1 2e412f41 30c63140 32433346  
34403540 3640b740 384639c0 3ac63bc0 3cc03d41 3ec13fc7 404241c0 424043c2  
44414540 46c047c2 484349c0 4a404bc5 4cc04dc7 4e414f47 d04051c6 524253c0 &lt;&lt;&lt;&lt;&lt;&lt;&lt;------- 
54c05543 564757c0 584359d4 5a405bc2 5c415dc3 5e415fcd 60c061cc 62c163c0  
64416543 66466743 68c169c0 6a426bc1 6cc46dc2 6ec26fc3 70c071c2 724173dd  
74c27542 76417740 78c27940 7a477b41 7cc07dc1 7ec67f42 c2c20000 00000000  
 
652d6607 670d680d 690f6a0a 6b086c04 6d0c6e04 6f0f7004 711a7205 730c740a  
75097601 771a782c 790e7a07 7b0a7c09 7d057e08 7f2fa022 00470147 02440346  
044e054d 06c00745 08450946 0a4d0b43 0c4e0d47 0e400f4c 1046114c 124c134a  
14441544 16471744 184c1944 1acc1b4c 1c441d4e 1e421f4c 2044214f 2240234d  
2445254e 264e2742 284429dd 2ad42b46 2c442d4a 2e4a2f45 b042314c 32473345 &lt;&lt;&lt;&lt;&lt;&lt;&lt;------ 
34453544 36443749 38423942 3a453b42 3c4c3d44 3e4f3f4e 40474145 42444342  
44474558 464f4744 48464944 4a434b4c 4c414d4a 4e4c4f4c 50405146 52455341  
544f554d 56475744 584559d5 5a4c5b42 5c4c5d44 5e465fcf 604c61c5 6245634f  
6444654d 66466744 68c0694f 6a446b42 6c406d47 6e446f4d 7047714c 724773d7  
74457547 76c0774d 78467946 7a447b42 7c457d4c 7e447f43 d0c2c2c4 00000000 </pre>
<!-- Author: Petra -->