Products > Test Equipment

Rohde & Schwarz CMU200

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Kribok:
Hello ! a few hours using CMU and testing in turn, and R & S suspended during testing and needs to be turned off and on again -
Internal RF Loop Path
1-> 4 / 3-> 2 RF Loop Path
FM Modulation Calibration
L1CoPro Level Calibration
Internal AuxTxLoop Path 1
IF3 Selftest
Settle Time Calibration
The remaining tests are performed without problems, and the spectrum analyzer and audio tester continue to work, but when the RF generator is switched on, the CMU suspended.

Kribok:
Happy New Year 2019

Kribok:
Hey .
One of my colleagues was so kind that he came to me with his CMU and we could check his devices. After a few hours, replacing almost everything that was possible, it turned out that the tile shown in the picture is damaged. After removing this plate, my CMU turns on normally, i.e. very fast, but the RF generator still does not work.
With an efficient PCB, the CMU operates normally and also an RF generator. Question for 100 points, which is most often damaged?
We are not able to locate the damaged component on this board. I want to thank everyone for all the help and all the hints, and of course my friend for taking the time to diagnose the fault. I greet everyone.

Ice-Tea:
Where does that piece come from? I may well have a spare for that but I don't recognise it..

Kribok:
From what has been set at 100%, this PCB is damaged, which is placed in this module - pictures.
If someone is more experienced in repairing the CMU 200, or knows what is most often damaged, then I am asking for a hint, or if someone has such an efficient board, I will gladly buy it back!

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