<!-- Title: 14:28:32  Wed Oct  2 2002 -->
<!-- Crewchief: Guram Chlachidze -->
<!-- Op1: Akram Artikov -->
<!-- Op2: Oleg Poukhov -->
<!-- Op3: Davit Chokheli -->
<!-- Op4: &nbsp; -->
<!-- Op5: &nbsp; -->
<!-- Op6: &nbsp; -->
<!-- Notes: -->
<pre>What was done during supervised access today: 
 
1. Pisabox 22 for miniskirts was swapped;  
2. Gammabox for north CSP wall was swapped; previous Gammabox  
has readout problems; 
3. High voltage on Gammabox for CSX north-east was increased on ~15 Volts; 
4. We couldn't fix dead Miniskirt channel (SE counter 79X) and  
bad Miniskirt channel (SW counter 80X) - these channels are on the bottom parts of counters and unaccessible now.</pre>


<!-- Date: Wed Oct 2 14:31:31 2002 -->
<pre>Info about our activity today is above.</pre>
<!-- Author: Akram, Davit, Oleg -->


<!-- Date: Fri Oct 4 17:36:24 2002 -->
<pre>Obtained efficiencies for CSX counters. Changed high voltages there according to the new efficiencies table.</pre>
<!-- Author: Akram, Oleg -->


<!-- Date: Fri Oct 11 15:23:24 2002 -->
<pre>Controlled access (11am-1pm): 
 
1) The faulty CCU03 was replaced from SW side (TSU counters);  
now there is CCU14; 
2) light leak was discovered on NW CSX-I counter 5 (somebody  
damaged this counter in last access). Fixed.</pre>
<!-- Author: Guram, Akram, Oleg -->


<!-- Date: Sat Oct 12 15:16:50 2002 -->
<pre>South-East CCUs were unreadable. Fixed.</pre>
<!-- Author: Oleg Poukhov -->


<!-- Date: Thu Nov 14 16:07:54 2002 -->
<pre>12:30pm - unreadable CCU05 was replaced during controlled access. 
CCU07 was installed instead of CCU05. But CCU07 is not better 
(current=0 on all of 48 channels). 
 
3:30pm - CCU07 was replaced during controlled access. Now CCU03 
is there. CCU03 was checked before the installation.</pre>
<!-- Author: Akram, Oleg -->


<!-- Date: Fri Nov 22 18:09:57 2002 -->
<pre>Lot of problems on the West side after quench today (~2:30pm): 
CCU16, CCU20 - voltages trip; 
CCU10, 13, 21, 25 - unreadable. 
 
CCUs 16, 20, 21 were fixed. CCU 10 stays unreadable after power 
cycling. 
 
CCU10 was swapped during controlled access. CCU05 is instead.  
CCU13 and 25 are unreadable.  
We need supervised access to reboot them. Their current status  
is unknown and can be checked using YMon histograms (CSP top  
west and bottom west in MUON section of YMon).</pre>
<!-- Author: Akram, Oleg -->


<!-- Date: Thu Nov 28 09:32:08 2002 -->
<pre>CCU23 is unreadable, power cycling doesn't work. 
CCU23 (South-West TSU/BSU) was swapped during controlled access.  
Now CCU07 is there, and everything is OK now. </pre>
<!-- Author: Akram Artikov, Oleg Poukhov -->


<!-- Date: Tue Dec 17 14:36:16 2002 -->
<pre>TSU Counters replacements: 
 
TSU #20 (CCU03 ch. 19, SE) was swapped to TSU #63 
TSU #67 (CCU07 ch. 23, SW) was swapped to TSU #79 
</pre>
<!-- Author: Carl Bromberg -->


<!-- Date: Tue Dec 17 14:37:32 2002 -->
<pre>Unreadable Pisabox 22 (SW miniskirts) was fixed by power cycling 
during supervised access.</pre>
<!-- Author: Guram, Davit -->


<!-- Date: Thu Dec 19 17:39:30 2002 -->
<pre>CCU 6 (SW BSU) - voltage trip to 0. Fixed. 
CCU 5 ch. 17 (NW BSU) - threshold trip to 0. Fixed.</pre>
<!-- Author: Oleg Poukhov -->


<!-- Date: Mon Feb 24 17:15:55 2003 -->
<pre>Bad response from CCU21. Fixed by power cycling. 
 
2/24/03 3:57:38 PM  
The response of CCU: 
==================== 
0	2	297 
21	10	1	1	790	3.0	2	295 
21	11	1	1	800	3.0	2	287 
21	12	1	1	900	3.0	2	295 
21	13	1	1	775	3.0	2	301 
21	14	1	1	770	3.0	2	283 
21	15	1	1	800	3.0	2	285 
21	16	1	1	800	3.0	2	280 
21	17	1	1	800	3.0	2	330 
21	18	1	1	800	3.0	2	333 
21	19	1	1	725	3.0	3	328 
21	20	1	1	850	3.0	2	324 
21	21	1	1	825	3.0	2	340 
21	22	1	1	825	3.0	2	320 
21	23	1	1	850	3.0	2	316 
21	24	1	1	775	3.0	2	316 
21	25	1	1	825	3.0	2	313 
21	26	1	1	925	3.0	2	305 
21	27	1	1	825	3.0	2	306 
21	28	1	1	740	3.0	2	307 
21	29	1	1	875	3.0	2	309 
21	30	1	1	875	3.0	2	298 
21	31	1	1	800	3.0	2	315 
21	32	1	1	875	3.0	2	322 
21	33	1	1	720	3.0	2	283 
21	34	1	1	900	3.0	2	277 
21	35	0	1	0	3.0	2	106 
21	36	0	1	0	3.0	2	109 
21	37	0	1	0	3.0	2	105 
21	38	0	1	0	3.0	2	103 
21	39	0	1	0	3.0	2	101 
21	40	0	1	0	3.0	2	102 
21	41	0	1	0	3.0	2	113 
21	42	0	1	0	3.0	2	110 
21	43	0	1	0	3.0	2	107 
21	44	0	1	0	3.0	2	112 
21	45	0	1	0	3.0	2	107 
21	46	0	1	0	3.0	2	107 
21	47	0	1	0	3.0	2	103 
21	48	0	1	0	3.0	2	106 
OK 
21 
</pre>
<!-- Author: Oleg Poukhov -->


<!-- Date: Sun Jun 22 10:21:47 2003 -->
<pre>We observed a transient communication problem with CCU Monitor: 
WHen we tried to view CCU 13 and CCU 25  (CSP W), the program 
failed to communicate with them. 
However, IFIX appeare to be having no problems accessing these CCUs. 
We then tried accessing them using the "terminal" option and were 
successful. 
After exiting CCU Monitor and re - entering, everything was OK again. 
 
Davit and Giovanni 
</pre>
<!-- Author: D.C and G.P. -->


<!-- Date: Sat Jul 19 18:42:24 2003 -->
<pre>The following is an extract from the shift log 
 
   Sat Jul 19 13:26:20 GLOBAL ALARM - CSP, BSU and TSU. Invesitgated 1RR15_C on first floor. Found that nearly all involved ccu's (all except 3) had channel 1 
voltage at 770. Upon loading data file for each ccu found that proper voltages were either 875 or 900 volts. - Stan Forrester :: (run 166371)  
 
I went over to investigate and found : 
1 CCU : all channels had to be reset 
10 others had alarms(red) on the first channel only. 
Reset all and alarms disappeared after following IFIX monitoring cycle. 
Stange thing was that all the bad first channels were reading the same voltage (770 V) on the IFIX display and, when I looked at them using MuonMonitor, these readings were confirmed !!?? 
Oleg, Have you any explanation?</pre>
<!-- Author: G.Pauletta -->


<!-- Date: Sun Jul 20 10:25:50 2003 -->
<pre>I looked into three CCUs (20, 22 an 2) which were blinking yellow (warning alarm). Found that the first channel of these CCUs was 
also set to 770 V (as had the first channela of the other CCUs which we crrected yesterday) and I reset to correct value.  
So it appears that the first channel of all the CCUs had been set to the same voltage (770 V) yesterday. However, since this 
voltage was not very far from the correct value for these CCUs, the only blinked yellow and did not set off the red alarms.  
One more problem: I was not able to read out CCU02  ("CCU unreadable")after I had reset channel 2.  However, YMON shows a 
normal occupancy spectrum for the corresponding counters (TSUs), so I'm not going to do anything until end of store.  
G</pre>
<!-- Author: G.P. -->


<!-- Date: Sat Aug 2 12:14:46 2003 -->
<pre>Made controlled access to do a H/W reset of the SE CCUs (22, 03, 15,12).  Did not succeed in re-establishing comunication with these ccus. Will need to try again on another occasion. 
Meanwhile, watch ymon east TSU and BSU plots. 
Plots look ok for the last run with appreciable statistics (166935, taken on Friday, Aug 1,  21:24)</pre>
<!-- Author: G.P. -->


<!-- Date: Mon Sep 8 12:08:15 2003 -->
<pre>CSP bottom counter - bad PAD is fixed.</pre>
<!-- Author: Guram, Akram, Oleg -->


<!-- Date: Mon Sep 8 17:51:09 2003 -->
<pre>Dead channel NW D-35 (CCU23). Checked input and output signals on this CCU channel - OK. Signal appeared when we mounted output cable after checking. Resume: bad contact.</pre>
<!-- Author: Akram Artikov, Oleg Poukhov -->


<!-- Date: Fri Sep 12 11:12:54 2003 -->
<pre>Miniskirt North-West counters were installed. 
 
</pre>
<!-- Author: Dubna + Trieste -->


<!-- Date: Fri Sep 12 17:54:05 2003 -->
<pre>Miniskirt North-West Counters signals were checked. OK. 
BSU counter 143 with bad PMT was replaced with BSU counter 269 and checked. Looks OK. 
</pre>
<!-- Author: Dubna (JINR)+Trieste (INFN) -->


<!-- Date: Mon Sep 15 17:56:22 2003 -->
<pre>Bad PAD on very hard accessible BSU SE C-3 was replaced. Pulse looks OK.</pre>
<!-- Author: Dubna (JINR)+Trieste (INFN) -->


<!-- Date: Wed Oct 15 17:56:41 2003 -->
Bad 5-cat cable on BSU SW C14. We found a spared cable 104798 SPR 116-117 and plugged instead of.
<!-- Author: Davit, Oleg -->


<!-- Date: Wed Oct 22 16:13:20 2003 -->
Starting the loading a new Carl's software for CCUs.  
Spared CCUs ##01, 16, 17, 24 are reprogrammed.  
<!-- Author: Oleg Poukhov -->


<!-- Date: Mon Oct 27 17:54:45 2003 -->
Loaded new software for ALL CCUs.
<!-- Author: Davit, Oleg -->


<!-- Date: Mon Oct 27 17:56:45 2003 -->
Probably port #8 in PC cdf56183 is damaged. It was a cause of Central West CCUs inaccessibility. Plugged these CCUs to port #9.
<!-- Author: Akram, Davit -->


<!-- Date: Wed Dec 17 17:35:06 2003 -->
<pre>Changed voltages on the next TSU counters: 
 
1. TSU NW CCU-B (CCU08) channel 13: 
   was: counter #20 - 875/3; now: counter #3 - 850/3; 
2. TSU NW CCU-A (CCU20) channel 3: 
   was: counter #94 - 890/3; now: counter #74 - 890/3; 
3. TSU SE CCU-B (CCU03) channel 23: 
   was: counter #78 - 770/3; now: counter #20 - 850/3</pre>
<!-- Author: Oleg Poukhov -->


<!-- Date: Fri Jan 30 15:11:54 2004 -->
We replaced 2 PADs on BSU NE counters. Nothing changed on BSU outputs. Probably on BSU NE D30 - bad PMT, on BSU NE D42 - bad CCU channel. We need a lot of time to fix these problems.  
<!-- Author: Akram, Oleg -->


<!-- Date: Sun Feb 1 11:18:33 2004 -->
We checked spared CCU's. CCU 01, 04, 12 are OK. CCU24 - probably the second board (channels 25-48) is bad - bad signals, especially channel 46 - no signal.
<!-- Author: Akram, Oleg -->


<!-- Date: Tue Feb 3 11:14:47 2004 -->
CCU24 was checked and repaired by Carl Bromberg. All 4 spared CCUs are good now! 
<!-- Author: Oleg Poukhov -->


<!-- Date: Thu Feb 5 16:18:02 2004 -->
<pre>Important! We must check TSU counters ID for the west side on the nearest  
opportunity! Now we have 2 different counters with the same ID!!! 
 
CCU#08 NE-B channel 3 ID=111 HV=800 
CCU#14 SW-A channel 1 ID=111 HV=900 
</pre>
<!-- Author: Akram, Oleg -->


<!-- Date: Tue Feb 10 11:16:31 2004 -->
<pre>Threshold trip on CSX discriminators: 
 
crate 2, slot 11 - 17 mV; 
crate 6, slot 17 - 16 mV; 
crate 6, slot 13 - 16 mV. 
 
Should be 15 mV everywhere. Fixed.</pre>
<!-- Author: Guram, Akram, Oleg -->