Ed, Keita, Jeff
So, a quick and nasty coherence check just to find possible dead monitor channels using a couple of frequencies reveals apparent bad channels:
ETMY M0: SD - voltmon, fastimon
R0: F1 - noisemon
L2: All Channels? - noisemon
ITMY L1: UR fastimon
All suspensions in Y-Arm from TMS back to ITM were tested. Any not specified here measured good.
The fact that ETMY L1 shows apparent DC offsets, in the -4300 ct range in all noisemon channels, UL voltmon and LR fastimon, is not revealed by this measurement.