Electronics > Repair

CMU200 Rohde & Schwarz hangs during BaseDiscoverOptionsBegin

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Qw3rtzuiop:
Hello

my cmu200 has now a similar problem. The error apears on every start up.
I removed all unnecessary options and modules without any success. Has anyone a guess what part may be defective?

RF_fanatic:
It might seem strange but check the connector between the Frontend module and the mainboard (the grey multiwire cable)

If I remember correctly I have also seen such message when that cable was not making proper contact, but I can be wrong..

Qw3rtzuiop:
I checked the connectors but that didnt helped. But i updated all the software to the latest version. Now the cmu is bootin up. But the spectrum display is empty. There must be a fault in the DIG module. Either the adc or the DDC/DSP board.

tech255:
I have a machine that throws up errors like this when i try to install B17 and B21 modules im looking for an install version of "version manager" so i can wipe my drive and reinstall the version manager and then the software.

I would also like to install an earlier software if anyone has copies of these i have all the latest 5.1 and 5.2 versions. I have no idea what versions were previous.

Bicurico:
Hi,

I received two CMU200 with broken DSP board 1100.3220.02.

Just a quick question (I am in the office and can't test it now): what happens if I remove this board? Will I just lose the WDCMA functionality or will the bas spectrum/generator functions stop working, too?

Does the CRTU have this board, too? Are they exchangeable between CMU200 & CRTU?

Regards,
Vitor

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