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Instrument cluster: electrician consult asked
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pwvoogt   
Tue Mar 30 2021, 10:08am
Joined: Apr 28 2019
Member No: #3906
Location: Winterswijk
 I also had the known problem with the switching power supply. After I fixed it, the instrument cluster was working again. But now the VFD has failed. The VFD has been replaced, but the problem is still there. It must therefore lie in the management.
I have measured the voltages, but I cannot judge whether they are all good. See the image with the left table.
Is there an electrician who has measured the voltages on the VFD pins and knows what values they should be?

I am very very grateful!
central_display_faillure-instrument_cluster_citroen_c6.pdf
pwvoogt   
Thu Apr 01 2021, 05:15pm
Joined: Apr 28 2019
Member No: #3906
Location: Winterswijk
 Problem solved. There is not enough voltage difference between 1-4 and 23-27 (the ends of the filaments), so the filaments are not receiving power. This causes the entire VFD display to fail. The cause was a break in the print track at the transformer.
 

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