Our 20GHz E8257D has failed because of PS problem and I found out some boards (A6 Frac-N, A8 LB Output) failed, too. I repaired them but stuck on only one board which is A29 20GHz Doubler module. I want to make sure if this A29 has failed, before I order new one. When I apply YTO signal which is around +7.50dBm@10.95GHz, to J1 RF In of A29, I get results as below in same frequency of YTO (Unit is in CW mode and Frequency is set below 3.2GHz):
J2 RF Out: No signal
Could you please help me, how to make sure if this A29 has failed (I don't have spare one)
Thanks in advance.