Backup (Rearview) monitor not working 2007 bus

[Lanson]

2007 40' QSP bus with rear view monitor on dash console. The monitor works with left or right turn signal and in reverse, but not while driving forward.

The display shows "No Signal" then goes to a blank screen. Used to work. Haven't taken coach out for a while due to health.

Any ideas where all connections are for video feeds? Maybe just a loose one that needs wiggling.

Thanks in advance

Larry

[Minidb]

We have totally different units but ran into the same problem this summer. Ours is a 2015 Itasca Sunstar and we lost the rear view after a pleasent (not) drive down I20.
Found the RCA connections had come loose behind the main display. Quick fix
Good hunting!

[Lanson]

Found connections and gave them a wiggle and screen came to life!
All is well!