sudarshan.karki@LIGO.ORG - posted 11:31, Wednesday 05 August 2015 - last comment - 14:27, Wednesday 05 August 2015(20259)
PCAL AA Chassis at Xend
Pcal Team,
During maintenace and calibration yesterday we found that the PCAL AA Chassis (S1400574) at EndX has problems with channel 5-7. Chanenl 5 is dead and 6 and 7 are railed at ~15000 cts. These channels are connected to DB9-to-BNC chassis (D1400423) at the other end. We isolated this unit from AA chassis to troubleshoot the location of the problem and confirmed that it is the AA chassis.
Fil, Sudarshan
We tried power-cycling the AA chassis to see if it solves the problem. It didnot so we replaced the broken AA chassis with a spare one (S1102791) and brought the broken one back to EE shop for troubleshooting. We will swap it back with original, once it is fixed.