Reports until 15:55, Tuesday 23 February 2016
H1 AOS (SUS, SYS)
richard.mccarthy@LIGO.ORG - posted 15:55, Tuesday 23 February 2016 - last comment - 11:25, Friday 26 February 2016(25685)
Add Capacitors to Ham2 SUS SAT Amp 
Per work permit 5741 began the process of modifying all Suspension Satellite Amplifiers.  Drawing D0901284-v4 calls for the addition of Cap C601(10uF) and C602 (.1uF) between the -17V to Ground around U503 the Negative Regulator VEE1.
Today with Ed M. Soldering away in the lab we were able to complete all of Han2 units.
Complete are:
MC1, MC3, PRM, PR3, MMT1, MMT2, SM1, SM2  All Stages.

We did have a problem with two Sat Amps. One shared between MC1 and MC3 and the one for  MMT2,a trace blew when it was powered up.  So replaced SN 1100117 with SN S1000287 and SN1100068 with SN1100066.
Comments related to this report
cheryl.vorvick@LIGO.ORG - 12:39, Thursday 25 February 2016 (25723)IOO
Link

Tracking Names: SM1 = IM1, PMMT1 (MMT1) = IM2, PMMT2 (MMT2) = IM3, SM2 = IM4

edmond.merilh@LIGO.ORG - 11:25, Friday 26 February 2016 (25755)
Link

UPDATE:

As of today all HAM3, HAM4 and EX Amps have been modified. HAM2 amps will have to be re-addressed due to an error in installation of the mod. 3IFO boxes are in process.

- Ed