<!-- Title: 09:32:27  Tue Feb 20 2001 -->
<!-- Crewchief: Gino -->
<!-- Op1: &nbsp; -->
<!-- Op2: &nbsp; -->
<!-- Op3: &nbsp; -->
<!-- Op4: &nbsp; -->
<!-- Op5: &nbsp; -->
<!-- Op6: &nbsp; -->
<!-- Notes: -->
<pre>Barrel 5 Wedge 5 Load Box Test 
Blnking lights test OK 
Trip test OK 
All Voltages OK 
No DBref test 
</pre>


<!-- Date: Wed Feb 21 09:43:13 2001 -->
MB,WJS test with WiB1:<a href= 
'/cgi/elog/det-system-elog.pl?nb=silicon&action=view&page=9&frame=2&anchor=22:55:16'> 
OK</a>
<!-- Author: SCN -->


<!-- Date: Thu May 3 11:07:59 2001 -->
<pre>-	blinking light test PASSED 
-	LOAD in a BOX test PASSED 
-	WIB test PASSED (look at silicon e-log for more details) 
-	CONCLUSION: SB5W5 bundle is OK (same conclusion as 
	in february) 
-	Plugging SB5W5: 
	- many mechanical interferences (this is a short rail 
 	  slot, interferences with four inch web and one of the 	 
	  capacitor on the JC) 
	- plugged in with a little struggling. 
	- Turning ON: AVDD4 overvoltage trip 
	- Tried to take data with other 4 layers 
	  No data out. Same as of the beginning of the WIB test. 
	- Possible interference between alluminun tape on top  
	  the sensing cable and the exposed pins of a low voltage 
	  connector on the JC. Details have been described to 
	  intereested people. 
	- Inserted piece of manila folder on the suspected spot, 
	  moved cables and now it does NOT trip anymore. 
	- POWERING OK 
	- INITIALIZATION OK 
	- NO READOUT same problems as at the beginning of WIB 
	  test. 
 	- Time to go On and leave the fun to JG and SW. They are 
	  carrying on with the ISL bundle and if they get to a 
	  succesfull WIB test they will swhitch back to SB5W5 in 
	  order to understand if the problem is correlated with 
	  the DAQ or with the wedge itself.</pre>
<!-- Author: Gino -->


<!-- Date: Fri May 4 11:01:44 2001 -->
<pre>-       INITIALIZATION OK BUT NOT DATA ARE READ OUT 
-       Possible explanation BECLK does not make it to the CPC. 
-       measured resistances at fib comand cable on OFTM side Everything OK 
-       I would like to work on it with a DAQ expert on my side (Steve?) 
</pre>
<!-- Author: gino -->


<!-- Date: Fri May 11 07:42:13 2001 -->
<pre>Using the upper half of the same FIB/OFTM, the symptoms remain the same. 
Source of the problem still to be nailed.</pre>
<!-- Author: Gino & Simon -->


<!-- Date: Sun May 27 20:36:35 2001 -->
<pre>trying to understand SB5W5. 
*********** 
Repeated al simptoms INITIALIZE perfectly all 5 layers but 
nothing is readout. 
*********** 
Using b0fib06 SLOT 18 lower instead of the regular SLOT 17 lower 
the symptoms stay the same. 
*********** 
Unplugged and plugged cable bundle to WIB everything works fine. 
*********** 
Back to SLOT 17 lower and the WIB keeps working fine. 
*********** 
With optical probe I can clearly see the bidirectional line switching during digitize. (Still with the WIB) 
*********** 
With the electrical probes and the blinky light board I monitored all the 24 signals from the FIB (12 differential lines) and they are all there in a good shape. 
*********** 
CONCLUSIONS: 
THE FIB AND THE CABLE BUNDLE ARE DOING THEIR JOB PRETTY WELL. 
*********** 
Replugged into SB5W5 
Still same simptoms: 
INITIALIZE PERFECTLY 
DOES NOT READOUT ANYTHING 
THE BIDIRECTIONAL LINES DURING DIGITIZE ARE NOT SWITCHING AS THEY SHOULD. 
*********** 
CONCLUSIONS 
THIS IS CLEARLY A PORTCARD FAILURE. 
I CAN ONLY PASS THE BALL TO SERGIO AND YURI. 
Being the problem so anomalous I would invite everybody to think  
and come up with further test because I have no more ideas on  
what I can do to understand it better.</pre>
<!-- Author: Gino -->


<!-- Date: Thu Nov 8 00:03:49 2001 -->
<pre>ATTENTION ATTENTION ATTENTION!!!!!!!!!!!  
 
 SB5W5 NOW INITS AND READS OUT ALL 5 LAYERS  
 
 Unfortunately the FEs of all ladders look dead. There might  
 still be more problems on the connector.   
 Also L3 drops bit2 occasionally. 
 
 
 - MB for Gino, Matt, Steve W. 
-- Wed Nov 7 23:03:37 comment by...MB for the miracle workers --   
 
Just in case an entry wasn't made about what happened. Gino 
found a short between CCLK and CDATA that was traced to  
the inner fib command cable connector that plugs into the 
small JC. With tools attached to fingers FECLK and CCLK 
wires were cut before the cable connector and connected to JC.  
 
</pre>
<!-- Author: Me -->


<!-- Date: Thu Nov 8 01:16:47 2001 -->
<pre>What a fun night! about 20 mins ago Silicon Cooling turned red 
FogHorns started blasting and continued blasting. ISL max temps 
were rising. Switched off SB5WB where I was working. GUI reports 
every thing off. ALL ATTEMPTS TO PAGE EXPERTS FAILED SINCE AT  
LEAST 3 PAGERS GAVE BUSY SIGNALS. Called the Hawkish Hock. 
at home. On ISL intlcks page west flow was red but ISL chlr 
still on. ISL flow monitor all west valves at 0%. Clicked on 
ISL trip Ack and went back to ISL flow Monitor. By some miracle 
the valves had turned themselves back on! (did I click download 
without noticing?) temp was coming down. 
 
I would like to point out that this happened when NO ONE was 
on shift. 
 
I would also like to point out that landlubbers like myself who 
did not have the luxury of growing up somewhere where fog was 
common do not know what a FogHorn is and certainly not what 
it sounds like.</pre>
<!-- Author: Humpf! take a wild guess -->