FDS 747 CDU screen not turning on

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747sim
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Joined: Fri Nov 21, 2014 4:47 pm

FDS 747 CDU screen not turning on

Post by 747sim »

One of my CDU screen suddenly turned off today mid-flight. The CDU buttons still work OK. My other CDU works fine. So I tried swapping it all around but the failed CDU's screen doesn't turn on. Is there any other debugging issues I can do?

pcos
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Post by pcos »

Always wise to take a VGA feed from the other CDU and plug that in, knowing it is working means you can point to the CDU for the issue.
Trouble shooting is all about ruling out things and slowly pinpointing where the problem lies.
Peter
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747sim
Posts: 28
Joined: Fri Nov 21, 2014 4:47 pm

Post by 747sim »

Hi Peter, yes I swapped everything around from the working CDU but the screen was still not turning on. The button input was working.

Jon Boe
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Location: Centennial, Colorado USA

Post by Jon Boe »

Do you get a display when you turn the screen intensity pot from min to max? A long shot but worth trying.

747sim
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Post by 747sim »

Jon Boe wrote:Do you get a display when you turn the screen intensity pot from min to max? A long shot but worth trying.
Unfortunately not. That does dim the display in PSX though, which shows the USB buttons are working.

pcos
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Post by pcos »

Best to email for further discussion.
Peter
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