<!-- Title: 11:56:32  Tue Oct  9 2001 -->
<!-- Crewchief: silicon people -->
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<!-- Notes: -->
<pre>6 week access</pre>


<!-- Date: Tue Oct 9 12:02:03 2001 -->
We didn't start a new file for the access - see 
previous logbook file for Monday.  More relevant 
is <a href= 
'/cgi/elog/det-system-elog.pl?nb=silicon&action=view&page=70&frame=2&anchor=22:12:00'> 
measurements here.</a>  
 
Also for last nights measurements see <a href= 
"/internal/ops/svxii/runii/doim_link">here.  
<!-- Author: jean, Cigdem, Lester, Andy -->


<!-- Date: Tue Oct 9 16:51:07 2001 -->
<pre>Natalia and I started working on the non-OFTM problems in SVX: 
 
so far we only worked on the east side 
 
SB3W2L2: used to trip on DVDD OV, still does so at turn on 
SB4W3L0: used to trip on DVDD OC, not seen now, current doesn't increase with time, ladder inits and reads out fine 
SB4W3L2: had a reported low AVDD current: we saw I_DVDD=120, 
I_AVDD=200 (before init), I_DVDD=120,I_AVDD=440 (after init);  
this ladder reads back 0s at init and gives tons of readout errors. 
SB5W3L2: suffered from DVDD OV, still the same 
SB4W9L1,L3: in this wedge we cannot turn on any silicon, PC seems  
fine, but ladders give ext. trips. (this is only present since 9/8/01). 
SB4W4L2: was out of running for unknown reasons, looks fine in principle,  
but FIB behaves strangely, only wants to readout L2 if also L0 is enabled  
and vice versa...need to go back to this FIB (thanks to Mary for her help)</pre>
<!-- Author: Petra,Natalia,Mary -->


<!-- Date: Tue Oct 9 18:29:27 2001 -->
Silenced Watt Can vacuum alarm.  I responded to a page from CDF operations.
<!-- Author: Sanders -->


<!-- Date: Tue Oct 9 18:51:11 2001 -->
<pre>- Raised SVX temp from -5C to 10C (5C every half hour starting around 4pm) 
- In "SVX chiller system" page there was a  
FAULT: CHILLER PUMP STOPPED.  Andy Hocker check the logic 
and we cleared the fault by clicking the START button under "chiller operation". 
- Changed SVX chiller outlet temp high limit to 15.0C (from 5.0C) 
- Changed SVX chiller evaporator temp high limit to 30.0C (from 5.0C) 
- I noticed that the chiller evaporator actual temp was approaching 30C.  The historical plot from the September 3 day  
access showed that this temp went up and then came back down.  It's now at around 10C.  However, Andy H. and I checked the chiller downstairs and there is water dripping.  Informed Rob 
Roser of this. 
- Set all SVX and L00 trip limits to 15.0C.     
</pre>
<!-- Author: Eva H. -->


<!-- Date: Tue Oct 9 18:59:56 2001 -->
<pre>Set SVX chiller evaporator temp high limit down to 15C (from 30C - see entry above). 
</pre>
<!-- Author: Eva H. -->


<!-- Date: Tue Oct 9 19:20:49 2001 -->
<pre>Roser says water by the SVX chiller is nothing to worry about. 
</pre>
<!-- Author: Eva H. -->


<!-- Date: Wed Oct 10 00:17:03 2001 -->
<pre>Measured light output on IB0W0,W1,W4,W5 (fib03). 
Tried for a little while to measure IB5Wx. not much success. 
</pre>
<!-- Author: AP -->


<!-- Date: Wed Oct 10 09:31:35 2001 -->
<pre>Set all SVX and L00 trip limits to 20C.</pre>
<!-- Author: Eva H. -->


<!-- Date: Wed Oct 10 19:02:42 2001 -->
<pre>SVX cooled down to -5C (~5C/half hour).</pre>
<!-- Author: Eva -->


<!-- Date: Thu Oct 11 00:29:02 2001 -->
<pre>Better late than never. I turned off CAEN crate 7 (NW bottom top) 
to get rid of those ridiculous L00 software protection trips 
of LB0W5-0,1. It's out of the CAEN.map. 
 
I did this around 8am this morning.</pre>
<!-- Author: Lester -->


<!-- Date: Thu Oct 11 18:51:29 2001 -->
<pre>I restarted the CAEN GUI spy. It has apparently been dead since the start of the access. 
 
The temperature spy is also dead but I don't know how to restart it. 
</pre>
<!-- Author: David -->


<!-- Date: Fri Oct 12 09:22:58 2001 -->
<pre>Email from Max on bend radius of orage cables 
 
There is no change in attenuation until you reach the critical radius 
beneath which you do physical damage to the fiber.  Alcoa 
told us not to go smaller than 1-2cm even though from a damage standpoint 
it seems like one could go down to 0.5 cm or so. 
 
</pre>
<!-- Author: jean for Max -->


<!-- Date: Fri Oct 12 09:24:14 2001 -->
<pre>email from suen 
 
Today we had experienced one cable giving low light level, at 20 uW. 
Attempts for better connection failed. 
It is noticed that the hard orange wrapping does not reach the  
MTP connector.   Therefore suspected for possible cable damage. 
There are more cases like this to worry about. 
 
</pre>
<!-- Author: suen ( via jean -->
<!-- Comment: Mon Oct 15 10;18;01 comment by...SCN -->
<B>Lots More</B>
<!-- Date: Fri Oct 12 17:07:47 2001 -->
<pre>Mila from Brenna on cooling down 
 
Mechanically I don't think there is anything to worry about. 
It will take quite a while for the fluid to warm up since there are no 
heaters in the system,  just turn of the cooling ( or set it to 15) and it 
will slowly rise to 
the new ambient.  If you want it to go faster, you might check with Stanek, 
but I'm pretty sure he never added a heater. 
</pre>
<!-- Author: Jean -->


<!-- Date: Fri Oct 12 17:26:07 2001 -->
<center><a href='/elog/notebooks/silicon/Fri_Oct_12_2001_172527.ps'><img src='/cgi/elog/det-system-elog.pl?nb=silicon&action=view&page=-201' ></a><a href='/elog/notebooks/silicon/Fri_Oct_12_2001_172441.ps'><img src='/cgi/elog/det-system-elog.pl?nb=silicon&action=view&page=-199' ></a></center>
<!-- Author: Saverio -->
<!-- Comment: Fri Oct 12 17;28;48 comment by...Saverio -->
<pre>&lt;font color=red&gt;&lt;p&gt;This is a comparison of noise between calibration runs before and after the change in sequence.&lt;br&gt; The z-side is almost unaffected, the phi side changes a lot, mainly the Hamamatzu detectors. This explains the change in landau peak thet we notice &lt;/font&gt;.</pre>


<!-- Date: Sat Oct 13 17:13:05 2001 -->
<pre>A short synopsis of some repair work done today: 
[plastic] means proposed plastic attenuator fix 
 
wedge   symptom         action          result   
------------------------------- 
B0W5-1  OBDV            --[plastic]      
B0W6-4  OBDV            --[plastic] 
B0W9-2  7 low           RX swap         fixed 
B1W5-2  5 high          --[plastic] 
B1W8-0  c2c2            RX swap         fixed 
B2W5-0  OBDV            RX swap         still bad 
B2W7-1  1 low           RX swap         still bad 
B2W7-4  2,3 high        retest          2,3 low (pilot error) 
B2W8-2  1,2 low         RX swap         still bad 
B2W9-0  0 low           RX swap         fixed 
 
</pre>
<!-- Author: Lester -->
<!-- Comment: Thu Oct 18 09;18;14 comment by...Lester -->
<pre>Other RX's swapped:

wedge 		symptom		result
------------------------------------------
SB0W3-0		bit 1 low	still bad	
SB0W3-1		OBDV skip	fixed
SB3W3-4		OBDV, 6 high	still bad

</pre>
<!-- Date: Sun Oct 14 06:05:12 2001 -->
<pre>Starting at 1am, brought ISL to 16C (from 6C) in several steps for Joel G. to take some measurements.  Then went back down to 6C.  Set trip limits back to what they were originally.  All is stable by 6am.  Time to go home.</pre>
<!-- Author: Eva H. -->


<!-- Date: Sun Oct 14 08:28:06 2001 -->
<pre>Turned SW bottom rack (fib02) back on, after it 
tripped off last night due to the drip sensor.</pre>
<!-- Author: ADF -->


<!-- Date: Sun Oct 14 10:33:49 2001 -->
<pre>	Found that SVXDAQ causes SW Protection 
Trips whenever you WRITE the used HDI list to  
the FIB crate. 
 
	Also, SVXDAQ freezes after a certain 
amount if idle time.  If you keep using it, it  
will keep working. 
 
	The combination of these two effects 
makes it essentially impossible to turn on 
more than 1-2 wedges at a time, or to 
recover from a trip.</pre>
<!-- Author: ADF -->


<!-- Date: Sun Oct 14 10:34:14 2001 -->
<pre>ISL 5V enable turned off</pre>
<!-- Author: ADF -->


<!-- Date: Sun Oct 14 17:40:04 2001 -->
<pre>We tweaked several 2V DOIMs per our orders: 
 
Component   initial   final   adjust   location	 
=========   =======   =====   ======   ======== 
SBOWO	     1.93V    2.08V   +150mV   NW T B 1 
SB1W3        1.93     2.08    +150mV   NW T B 8 
SB0W8        1.91     2.01    +100mV   SW B B 1 
SB2W7        1.92     1.72    -200mV   SW B B 6 
SB4W3	     1.93     2.08    +150mV   NE T B 0 
SB4WA        1.92     2.07    +150mV   NE T T 9 
SB5W1        1.93     2.13    +200mV   NE T T 3 
SB5W7        1.92     2.07    +150mV   SE B T 3 
 
 
We also did cursory examinations of eight of the nine  
supplies on the 'dubious power supply list' (we did not  
check SB0WA).  Only one of them showed a definite problem,   
the one in SB2W8, and it has been removed for repair.</pre>
<!-- Author: Napora and Herndon -->


<!-- Date: Sun Oct 14 22:59:23 2001 -->
<pre>Found CAEN GUI spy dead. Restarted it. 
</pre>
<!-- Author: David -->


<!-- Date: Mon Oct 15 00:00:23 2001 -->
<pre>Retested all SVX wedges in NW crate. Summary of results in 
b0da***:~svxii/daq/svx/nw/test_101401.txt 
 
Summary: 
-------- 
 
3 HDIs definitely DROP bits (reseat/change RX-DOIMS if light is 
                             not low) 
 
5 HDIs definetly STUCK bits - some very infrequent 
 
4 HDIs Have OBDV problems - not all consistent with light 
  level problems 
 
2 HDIs we get no header from FIB only c4c4 this is supposed 
  to be impossible with the current fix? 
 
2 HDIs do not init but readout fine (probably bad OFTM BN fix) 
 
1 HDI does not init or readout 
 
4 HDIs have power problems OVC, OVV .. 
 
TOTAL 18/90 bad HDIs - YUK! 
 
Comments: Why wasn't PS in SB0W2 tweaked? - lots of very high 
bits on that CPC. 
 
SB1W3 Note that Layer 3 OBDV problems only occur after 3rd chip 
so if not already noted this is probably not a light output  
problem. 
 
</pre>
<!-- Author: Mad Mary -->
<!-- Comment: Mon Oct 15 13;40;38 comment by...Mad Mad Mary -->
<pre>Ok Ok ! I meant the detailed results are in the text file and the
summary is what I listed - Sorry for the confusion!</pre>


<!-- Date: Mon Oct 15 18:10:06 2001 -->
<pre>Power supply 2V Doim adjustments 
 
SB0W2 1.92 2.17  +250mV 
SB1W3 2.08 2.18  +100mV second adjustment 
SB3W4 1.94 1.74  -200mV 
SB3WB 1.94 1.79  -150mV 
SB4W3 2.08 2.18  +100mV second adjustment 
SB4W5 1.92 1.77  -150mV 
SB4WA 2.07 2.17  +100mV 
 
 
 
SB2W8 removed for repair.  will adjust -150mV later</pre>
<!-- Author: herndon and napora -->


<!-- Date: Mon Oct 15 18:14:59 2001 -->
<pre>Its BEER O'CLOCK I will be at the User Center  
HANDS OFF SVX SW !!! 
 
Pager: 630-722-7599 
Cell:  630-842-2276 
 
Status of testing in  
~svxii/daq/svx/sw/test_101501.txt</pre>
<!-- Author: Mad Mary  -->


<!-- Date: Mon Oct 15 20:00:53 2001 -->
<pre>I am back - Would someone check the enable cable on B1W8 Please? 
x2169</pre>
<!-- Author: Mad Mary -->
<!-- Comment: Mon Oct 15 21;17;01 comment by...SCN -->
Found Bias Cable of B1W8 unplugged, plugged it in.  Suspect this
was not allowing PS to turn on due to the connector loopback circuit.  Also suspect this was done when removing SB2W8 which
was apparently right next door.<P>
Mary also asked me to check SB(0,1,2)W6 cannot remember which.
Only remarkable thing I noticed was the SB2W6 has the
Grounding a la Bolla-Mary was complaining about some
problem with the Bias...she can fill in the details.


<!-- Comment: Wed Oct 17 09;15;58 comment by...herndon -->
<pre>Rob and I noticed this as well.  However, we decided not to plug
it in until we checked whether it had been done on purpose.
Apologies that we didn't put in an elog entry.</pre>
<!-- Date: Mon Oct 15 21:18:33 2001 -->
Awaiting MB finishing off SVXII west, and Suen/JP finishing off 
light measurements on b0fib04 so I can swap out an RX 
on SB3W3 L4, as requested by Lester.
<!-- Author: SCN -->


<!-- Date: Mon Oct 15 21:43:22 2001 -->
<pre>Finished survey of SVX SW: Details in  
~svxii/daq/svx/sw/test_101501.txt 
 
Summary: 
-------- 
 
5 HDIS definetly DROP bits 
 
2 HDIS definetly occasional STUCK bits 
 
3 HDIs have suspected OBDV problems 
 
1 HDI suspect VRB memory map problem 
 
2 HDIs do not init but RO  
 
3 HDIS have power problems 
 
2 HDIs drop RO last channel last chip 
 
TOTAL 17/75 HDIs with problems - YUK YUK YUK! 
 
Comments: The 2 in this set which had voltages adjusted SB0W8 and 
SB2W7 are still bad!</pre>
<!-- Author: Mad Mary -->


<!-- Date: Tue Oct 16 03:47:57 2001 -->
Andy and I made a sweep of all the SVXII ladders to 
try and document what is still giving some sorts of trouble. 
The good news is that there seems to be some modest improvement 
in number of working ladders.  However, there are still some 
mysteries too...Going home now to sleep.  Attempting to 
send Andy home too...Details in the morning.
<!-- Author: SCN -->
<!-- Comment: Wed Oct 17 14;39;29 comment by...SCN -->
<a href=
'/cgi/elog/det-system-elog.pl?nb=silicon&action=view&page=71&frame=2&anchor=14:38:06'>
Details</a> 
<!-- Date: Tue Oct 16 04:05:04 2001 -->
<pre>I was able to test East wedges except (for a  
variety of reasons) 
 
SB3W2 
SB3W3 
SB3W4 
SB3W5 
SB3WB 
SB4W9 
SB5W3 
 
There were 16 total errors on ladders; undiagnosed 
further and left for experts.  Of these,  5 have 
been introduced since the last measurement.  (Introduced 
errors have a good record of being fixed simply by 
cleaning and re-greasing the connector). 
 
The ladders with errors are 
 
SB3W3 L4 
SB3W6 L2 
SB3W8 L4 
SB3WB L4 
 
SB4W0 L4 
SB4W1 L0 
SB4W4 L3 
SB4W6 L2 
SB4W7 L2 
SB4W8 L2 
SB4WA L1 
SB4WA L1 
 
SB5W1 L4 
SB5W7 L0 
SB5W7 L2 
SB5WB L0 
 
 Incidentally, of the 6 plastic attenuators introduced in 
the East (Steve took the details on the West), all 6 
bit errors were cured.</pre>
<!-- Author: ADF -->
<!-- Comment: Tue Oct 16 04;36;04 comment by...ADF -->
<pre>Of the 10 non-DOIM fixes we attempted on the East
today, 9 worked.</pre>
<!-- Comment: Tue Oct 16 04;49;44 comment by...ADF -->
<pre>High-speed test logs in

~svxii/daq/svx/b*/log/

directories for decoding of bit errors.  I
only did B3, B4, B5; Steve decoded B0-2 in
real time.  Logbook for companion reading is
the ADF SVX CDF logbook in silicon office.

</pre>
<!-- Date: Tue Oct 16 04:22:28 2001 -->
<h3>Attenuator Research</h3> 
 
Last night, spent several hours trying to find 
something to attenuate light in a single HDI. 
Our optical signal is at ~1550 nm, which is not 
easy to find material attenuators for.  With 
stockroom closed, went shopping at Meiers at  
~0330, bought 
 
<ul> 
<li>Polarized sunglasses 
<LI>Aluminized mylar balloon 
<LI>Green latex  balloon 
<LI>Translucent bag 
<LI>3 mil black polyethylene 
<LI>Plastic canvas grid 
<LI>Bead donuts 
<LI>Plastic folders 
</UL> 
 
	Of these, tested folders, grid, black 
polyethylene, balloon, and aluminized mylar. 
<P> 
Results: 
<P> 
Item (Attenuation) 
<ul> 
<li>Blue plastic folder (30%) 
<li>Clear plastic folder (30%) 
<li>Aluminized mylar (100%) 
<li>Black polyethylene (100%) 
<li>Plastic grid (1.3 mm spacer) (98%) 
<li>Green balloon (70%) 
</ul> 
 
	Decided the winner was the plastic 
folder, which is 160 um thick.  The effect 
is mainly geometrical--it's the spacing, not 
the material. 
<P> 
	Measured the MT connectors with micrometer. 
The inside distance between the pins is ~3.9 mm. 
The 12 fibers are spaced along ~2.8 mm, i.e.  
the spacing is about 250 um.  It looks like the  
fiber diameters are about half the inter-fiber distance. 
The connector "table" is 2.44 mm x 6.38 mm. 
<P> 
	Made 20 plastic attenuators 3.5 x 2.4 mm 
in the silicon office.  These attenuators fit  
between the pins of the connector.   My technique 
was to grease the connector, place the attenuator 
on with tweezers, then grease the top of the plastic 
and plug into the slot.
<!-- Author: ADF, ST -->


<!-- Date: Tue Oct 16 04:24:25 2001 -->
<pre>All interlocks INACTIVE, 5V enables OFF</pre>
<!-- Author: ADF -->



<!-- Date: Tue Oct 16 04:38:27 2001 -->
<pre>Start warming up SVX/ISL. 
 
Does anyone remember the bad hip-hop act Kriss Kross? 
  
"Warm it up, Kriss/I'm abooooouuuuut toooo!" 
</pre>
<!-- Author: Andy H. -->



<!-- Date: Tue Oct 16 09:54:33 2001 -->
<pre>SVX/ISL at a toasty 16 deg C. 
</pre>
<!-- Author: Andy H. -->


<!-- Date: Tue Oct 16 14:17:32 2001 -->
<pre> 
&gt;&gt;&gt; ISL EAST Cooling is OFF &lt;&lt;&lt; 
&gt;&gt;&gt; DO NOT POWER until further notice &lt;&lt;&lt; 
 
Jim Ellermeier and Doug are mapping ISL cooling on the East. 
Once Rich Schmitt returns from a meeting, he and Rob Roser 
will make the Qlog changes. 
 
</pre>
<!-- Author: Doug G -->
<!-- Comment: Tue Oct 16 14;30;10 comment by...doug -->
<pre>&gt;&gt;&gt; ISL WEST ALSO OFF &lt;&lt;&lt;</pre>

<!-- Comment: Tue Oct 16 16;16;55 comment by...Andy H. -->
<pre>&gt;&gt;&gt; SVX EAST AND WEST ALSO OFF &lt;&lt;&lt;</pre>


<!-- Date: Tue Oct 16 20:42:32 2001 -->
Jim E. noticed this afternoon that SVX_PV_CHSUP (chiller supply pneumatic valve) was closed.  It appears that the little-used Quadlog over-pressure interlock ("close PV_CHSUP and trip racks 
if any COT pressure > 18 psia") fired at around 14:38.  The pressure spike was too fast for iFix to log it.  Resetting the 
racks opened the valve back up.
<!-- Author: Andy H. -->



<!-- Date: Wed Oct 17 14:38:06 2001 -->
<h1>Results of West SVXII Bit Scan</h1> 
On <a href= 
'/cgi/elog/det-system-elog.pl?nb=silicon&action=view&page=71&frame=2&anchor=03:47:57'> 
Mon/Tues</a> I swept through the West 3 Bulkheads of SVXII running everything on Standby and using the High Speed Test to look for Bit Errors.  Here are the problems I found:<P>  
Legend: 
<ul> 
<li> <FONT COLOR=00FF00> Green </FONT>  
Read out 100000 events OK in High Speed test, no errors 
<li> <FONT COLOR=FFFF00> Yellow </FONT> 
Could not test due to PS problems 
<li> <FONT COLOR=00FFFF> Cyan </FONT> 
Could not test due to lack of PS 
<li> <FONT COLOR=FF0000> Red </FONT>  
Severe Problem in this HDI 
<li> <FONT COLOR=FF00FF> Magenta </FONT>  
Small but liveable (?) problem seen 
</ul> 
 
  <body> 
    <h1>Bulkhead 0</h1> 
    Did not write down who didn't read back initialization correctly... 
    <table> 
      <tr><th> Ladder </th> <th> 0 </th><th> 1 </th><th> 2 </th><th> 3 </th><th> 4 </th> </tr> 
      <tr>  
	<td> SB0W0 </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td> 
      </tr>  
     
      <tr>  
	<td> SB0W1 </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=FFFF00> AVDD OVC </FONT> </td> 
      </tr>  
     
      <tr>  
	<td> SB0W2 </td>  
	<td> <FONT COLOR=FF0000> Bit 4 Stuck Low </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=FF0000> Drop RO Z Side </FONT><BR> 
	  <FONT COLOR=FF00FF> Remove Z Side-></FONT>  <FONT COLOR=FFFF00> Software Trips </FONT><BR> 
	</td> 
      </tr>  
     
      <tr>  
	<td> SB0W3 </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=FF0000> Bit 1 Stuck Low </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td> 
      </tr>  
     
      <tr>  
	<td> SB0W4 </td>  
	<td> <FONT COLOR=FF00FF> Bit 4 High 0.13% </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td> 
      </tr>  
     
      <tr>  
	<td> SB0W5 </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=FF0000> Channels, no Data (OBDV) </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=FF0000> Bit 4 Stuck (4->6) ??% </FONT> </td> 
      </tr>  
     
      <tr>  
	<td> SB0W6 </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=FF0000> Drop RO Last Chip</FONT> <BR> 
	  <FONT COLOR=FF00FF> Remove Last Chip -> OK  </FONT></td> 
      </tr>  
     
      <tr>  
	<td> SB0W7 </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td> 
      </tr>  
     
      <tr>  
	<td> SB0W8 </td>  
	<td> <FONT COLOR=FF00FF> Bit 2 High 0.06% </FONT> </td>  
	<td> <FONT COLOR=FF0000> Bit 6 Low 100% </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td> 
      </tr>  
     
      <tr>  
	<td> SB0W9 </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=FF00FF> Drop RO Last Chip/Chan 0.2% </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td> 
      </tr>  
     
      <tr>  
	<td> SB0WA </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=FF00FF> Drop RO Last Chip/Chan 0.06% </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td> 
      </tr>  
     
      <tr>  
	<td> SB0WB </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=FF0000> Bit 4 "Stuck" High Every Event<BR> but 
	  seldom for Channels <BR> predominantly Chip Ids </FONT> </td> 
      </tr>  
    </table> 
 
    <h1>Bulkhead 1</h1> 
Did not write down who didn't init correctly 
    <table> 
      <tr><th> Ladder </th> <th> 0 </th><th> 1 </th><th> 2 </th><th> 3 </th><th> 4 </th> </tr> 
      <tr>  
	<td> SB1W0 </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td> 
      </tr>  
     
      <tr>  
	<td> SB1W1 </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td> 
      </tr>  
     
      <tr>  
	<td> SB1W2 </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=FF0000>Crazy Chip ID order seen<BR> 
	    Expect: 8d 8c 8b 8a 89 88 87 a6 a5 a4 a3 a2 a1 a0<BR> 
	    See:    88 87 8b 8a a4 a3 a2 a1 a0 </FONT> <BR> 
	  <FONT COLOR=FF00FF>Rearrange VRB memory->OK? </FONT> 
	</td> 
      </tr>  
     
      <tr>  
	<td> SB1W3 </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=FF0000> Bit 0 Low </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=FF00FF> Bit 1 High 0.5% </FONT> </td> 
      </tr>  
     
      <tr>  
	<td> SB1W4 </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=FF00FF> Drop RO ~5% </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td> 
      </tr>  
     
      <tr>  
	<td> SB1W5 </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=FF00FF> Bit 5 Low <0.01% </FONT> </td>  
	<td> <FONT COLOR=FF00FF> Bit 5 High <0.01% </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=FF0000> Data, not Chans (OBDV) </FONT> </td> 
      </tr>  
     
      <tr>  
	<td> SB1W6 </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td> 
      </tr>  
     
      <tr>  
	<td> SB1W7 </td>  
	<td> <FONT COLOR=FFFF00> Dead Wedge </FONT> </td>  
	<td> <FONT COLOR=FFFF00> Dead Wedge </FONT> </td>  
	<td> <FONT COLOR=FFFF00> Dead Wedge </FONT> </td>  
	<td> <FONT COLOR=FFFF00> Dead Wedge </FONT> </td>  
	<td> <FONT COLOR=FFFF00> Dead Wedge </FONT> </td>  
      </tr>  
     
      <tr>  
	<td> SB1W8 </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=FF00FF> Drop RO Last Chip/Chan <0.01% </FONT> </td> 
      </tr>  
     
      <tr>  
	<td> SB1W9 </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td> 
      </tr>  
     
      <tr>  
	<td> SB1WA </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td> 
      </tr>  
     
      <tr>  
	<td> SB1WB </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td> 
      </tr>  
    </table> 
    <h1>Bulkhead 2</h1> 
 
    <table> 
      <tr><th> Ladder </th> <th> 0 </th><th> 1 </th><th> 2 </th><th> 3 </th><th> 4 </th> </tr> 
      <tr>  
	<td> SB2W0 </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td> 
      </tr>  
 
      <tr>  
	<td> SB2W1 </td>  
	<td> <FONT COLOR=FF0000> *20K TRUNCATE </FONT> </td>  
	<td> <FONT COLOR=FF0000> *20K TRUNCATE </FONT> </td>  
	<td> <FONT COLOR=FF0000> *20K TRUNCATE </FONT> </td>  
	<td> <FONT COLOR=FF0000> *20K TRUNCATE </FONT> </td>  
	<td> <FONT COLOR=FF0000> *20K TRUNCATE </FONT> </td>  
      </tr>  
 
      <FONT COLOR=FF0000> *20K TRUNCATE </FONT> means after 20-40 kEvents, 
some subset of this wedge sends just 6 bytes, of the fib header and 
either c4s or c2s.  Most often it is the whole wedge, but it also 
happened for example on all but Chan 0, Only Chan 0, and only Chan 4 
 
      <tr>  
	<td> SB2W2 </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=FF0000> Fills buffer to 8 KB with 0s  </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td> 
      </tr>  
     
      <tr>  
	<td> SB2W3 </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td> 
      </tr>  
     
      <tr>  
	<td> SB2W4 </td>  
	<td> <FONT COLOR=00FFFF> NO PS </FONT> </td>  
	<td> <FONT COLOR=00FFFF> NO PS </FONT> </td>  
	<td> <FONT COLOR=00FFFF> NO PS </FONT> </td>  
	<td> <FONT COLOR=00FFFF> NO PS </FONT> </td>  
	<td> <FONT COLOR=00FFFF> NO PS </FONT> </td>  
      </tr>  
     
      <tr>  
	<td> SB2W5 </td>  
	<td> <FONT COLOR=FF0000> Bit 1 Low 100% </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td> 
      </tr>  
     
      <tr>  
	<td> SB2W6 </td>  
	<td> <FONT COLOR=FFFF00> VBIAS Undercurrent </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=FF0000> Bit 6 Low 100% </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td> 
      </tr>  
     
      <tr>  
	<td> SB2W7 </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=FF0000> Bit 1 Low ~10% </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td> 	 
	<td> <FONT COLOR=FFFF00> AVDD OVCurr <BR>then DVDD OVVolt </FONT> Init RB fs </td> 	 
	<td> <FONT COLOR=FF0000> Bit 7 low ~10%</FONT> Init RB 0s</td> 
      </tr>  
     
     
      <tr>  
	<td> SB2W8 </td>  
	<td> <FONT COLOR=00FFFF> NO PS </FONT> </td>  
	<td> <FONT COLOR=00FFFF> NO PS </FONT> </td>  
	<td> <FONT COLOR=00FFFF> NO PS </FONT> </td>  
	<td> <FONT COLOR=00FFFF> NO PS </FONT> </td>  
	<td> <FONT COLOR=00FFFF> NO PS </FONT> </td>  
      </tr>  
 
      <tr>  
	<td> SB2W9 </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td> 
      </tr>  
     
      <tr>  
	<td> SB2WA </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td> 
      </tr>  
     
      <tr>  
	<td> SB2WB </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> Init RB 0s</td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td>  
	<td> <FONT COLOR=00FF00> OK </FONT> </td> 
      </tr>  
    </table> 
 
I have not taken the trouble to look and see how this compares 
to Mary's results for <a href= 
'/cgi/elog/det-system-elog.pl?nb=silicon&action=view&page=71&frame=2&anchor=21:43:22'> 
SWB</a> and <a href= 
'/cgi/elog/det-system-elog.pl?nb=silicon&action=view&page=71&frame=2&anchor=00:00:23'> 
NWT </a>  nor previous history (it is faster to rediscover problems and mask them off than to try and figure out  
what has been "fixed")
<!-- Author: SCN -->
<!-- Comment: Wed Oct 17 14;46;23 comment by...SCN -->
<h1><FONT COLOR=FF0000>CORRECTIONs</FONT></h1><ul>
<li>Problems above on SB0W2 L4 are actually for SB0W3 L4
<li> Problems on SB0W3 L1 are actually for SB0W3 L0
</ul>Those entries should look like:
<table>
     <tr><th> Ladder </th> <th> 0 </th><th> 1 </th><th> 2 </th><th> 3 </th><th> 4 </th> </tr>
      <tr> 
	<td> SB0W2 </td> 
	<td> <FONT COLOR=FF0000> Bit 4 Stuck Low </FONT> </td> 
	<td> <FONT COLOR=00FF00> OK </FONT> </td> 
	<td> <FONT COLOR=00FF00> OK </FONT> </td> 
	<td> <FONT COLOR=00FF00> OK </FONT> </td> 
	<td> <FONT COLOR=00FF00> OK </FONT> </td>
	</td>
      </tr> 
    
      <tr> 
	<td> SB0W3 </td> 
	<td> <FONT COLOR=FF0000> Bit 1 Stuck Low </FONT> </td> 
	<td> <FONT COLOR=00FF00> OK </FONT> </td> 
	<td> <FONT COLOR=00FF00> OK </FONT> </td> 
	<td> <FONT COLOR=00FF00> OK </FONT> </td> 
	<td> <FONT COLOR=FF0000> Drop RO Z Side </FONT> Init RB 0s<BR>
	  <FONT COLOR=FF00FF> Remove Z Side-></FONT>  <FONT COLOR=FFFF00> Software Trips </FONT><BR>
      </tr> 
 </table>

Also, when Chips are "removed" it just means I adjust the Last Chip ID on the Fib so that it stops readout before these Chips.

<!-- Comment: Wed Oct 17 15;03;59 comment by...SCN -->
One more Correction<P>
SB0W5 L4 Bit 4 stuck hight should be Bit 5...