CDU screen blinks, working as designed?

Hi all!

I have a question about the 737 CDU. I noticed the screen blinks/flashes when you for example click on the yoke clickspot to get the yoke out of the way. There are also other ‘random moments’ where the CDU screen seems to blink once in a while without me clicking on anything. Does everyone has this or is there are problem with my CDU?

Thank you!

Based on your description of the problem, we are currently unable to determine the cause of the problem. We suggest that you unplug the other USB devices first and then try the relevant operation. Please record the operation video and send it to our official website email. ( [email protected])
Thank you!