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Entry  Fri Sep 8 00:32:20 2017, awade, Summary, FSS, Schematic block diagram FSS loops CTN_FSS_south_blockdiagram.pdf
    Reply  Thu Sep 14 21:54:26 2017, awade, Summary, FSS, FSS modifications: series resistance (R1 and R2) to monitor points on servo board D040105 
       Reply  Mon Sep 18 00:46:08 2017, rana, Summary, FSS, FSS modifications: series resistance (R1 and R2) to monitor points on servo board D040105 
          Reply  Mon Sep 18 13:34:13 2017, awade, Summary, FSS, FSS modifications: series resistance (R1 and R2) to monitor points on servo board D040105 
             Reply  Tue Oct 10 00:49:34 2017, awade, Craig, Summary, FSS, Replacing U3 on north path (2010:005) FSS servo board. 20171009_220549_Ser6_ComPathTP1toTP5_09-10-2017_175407.pdffmoenfipkniealnd.png20171009_DebuggingNorthPathServoBoard.tar.gz
    Reply  Mon Oct 2 12:30:15 2017, rana, Summary, FSS, LISO & mfil 
       Reply  Wed Oct 18 11:19:15 2017, awade, Summary, FSS, Comparing south TF to LISO model TTFSS_schematics_awades_hand_notes.pdf001.pdf20171017_South_FSSTFs.tar.gz
          Reply  Wed Oct 18 15:42:59 2017, awade, Summary, FSS, Comparing south TF to LISO model 
             Reply  Mon Oct 23 15:05:44 2017, awade, Summary, FSS, Comparing south TF to LISO model Ser7_South_MainBoard_compiledTF.pdfSer5_North_MainBoard_compiledTF.pdf2017-10-20_18.04.18.jpg
                Reply  Wed Oct 25 23:15:51 2017, awade, Craig, Summary, FSS, Comparing south and north TF to LISO model South_MainBoard_EXC-30dBm_compiledTF.pdfNorth_MainBoard_EXC-30dBm_compiledTF.pdfFSS_all.tar.gz
Message ID: 1926     Entry time: Mon Sep 18 13:34:13 2017     In reply to: 1925     Reply to this: 1947
Author: awade 
Type: Summary 
Category: FSS 
Subject: FSS modifications: series resistance (R1 and R2) to monitor points on servo board D040105 

Yes, this is bad. I thought maybe it was an issue but didn't address it as was working off the original design schematics. Also, originally I was using the SR785 to start with.

Information on all the changes made is spread thinly over the elog. It hard to search as terms used and catagories change over time: I just need to do a more detailed search. I've made a ATF wiki summary page HERE to bring together and summerize what we do know. Future changes should be document cronologically and in detail on the elog and ALSO as a live summary on the wiki.  I will add a section at the bottom of that page for a change-log where description, date and elog entries can be linked. 

Quote:

Ugh - no, plugging in the network analyzer should not change the gain of the servo. This seems quite bad. Lets discuss and fix.

In addition to Frank's fixes, Tara also did some patches with advice from Koji. We should make sure you have the right version of schematic.
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