At the beginning, the CMU worked normally, after a week of its purchase, the RF generator stopped working and a message appeared - photo 01
In my CMU, such modules are installed - picture 02
Since the appearance of this board, about 8 minutes will pass until full launch - picture 03 - 04
After starting the self test, the CMU hangs on the '' Diagnostic CMU -B56 Var14 '' message - photo 05
I made a reinstallation - photo 06
After starting the system a message appeared - photo 07
I turned off and turned on the CMU 200, after restarting the system (as before 8 minutes) the RF generator does not work.
I am looking for information on error codes, but it is probably only Rohde & Schwarz who has access to them?
If it is the fault of the software, then with the help of colleagues, you can try to fix it, and if it is a malfunction of a module, then only the replacement of it comes into play. After cleaning the modules, I saw how complicated the CMU is and why the price of the new device is so high. In the radioamateur studio, we can use the spectrum analyzer and RF generator for our home tests if you can buy a second-hand CMU at an affordable price.
I am very happy to hear the proposals on how to repair my CMU!