Since Suresh has installed the RF source box and changed the cable configuration somewhat,
the demodulation phase for the MC locking became off by about 10 degree.
I changed the length of some cables and obtained a good demodulation phase by the same technique as Suresh and Koji did before (see here for detail).
I maximized the Q signal. The lock of the MC looks healthy.
RF Source box has been mounted in the 1X2 rack.