With Takafumi Ushiba

We replaced the IMC CMS circuit with the old one (S1605810).
And adjusted the IMC-SERVO_IN1GAIN (4dB -> 24dB) and IMC-SERVO_IN2GAIN (-13dB -> 7dB) to make the UGF of this IMC control loop to be same as before.
After the adjustment, we measured the OLTF and checked the crossover frequency. (Attached figures.)

When installing the CMS circuit, we noticed that the ports on the back of the circuit chassis (Com/Fast Mon and Slow Mon) were reversed compared to the previous chassis, so we carefully checked which cables should be connected while installing it.
In the end, the connections according to the labels turned out to be correct.

The CMS which was installed before the replacement today, was moved back to Mozumi and is being inspected.