[ Ushiba, Tamaki ]
We tried to replace the circuit for FNC ( s1605811 → s1809509 ).
However, the offset before filtering exceeded the range we could control, so we couldn't try to test its operation.
We don't know the cause of this, but it might be because we tried to test it outside the rack (this is because we were going to check it in an analogue way), so the ground and other conditions were different.
Whatever it is, we will continue next week.