M. Pirello, R. McCarthy, E. Castrellon

Work Permit #6116

We removed the ISC Anti-Aliasing Chassis and investigated channel 14 which was suspected to have a failure, per ALOG 29189.  To test the channels, we attached the DB9 Breakout to the front DB9 connector and used the SR785 to test the transfer function through the filter.  We applied the test leads directly to the differential test points on the PCB.  Channel 14 looked much like all of the other channels. Unfortunately, the data was corrupted on the thumb drive, but I did get one scan of channel 9 and have attached this scan.  Every scan was nearly identical to this scan.

We returned the chassis to its original location and reattached all of the cables.