video feed cuts out during rolls

K

kevino

Active Member
Hello! so I just finished a flight controller swap and everything is working very well except for some reason when I do fast rolls and flips (full stick positions) my video cuts out. Oddly if I do rolls and flips slowly the video is fine. If I do full throttle it is fine as well. It is almost like it is resetting either the FC or the VTX or the camera somehow? I don't think it is the FC though because the video only goes out for about 1 second and then I have full control as soon as the video is back. I do see a splash screen though when it comes back, but I'm able to control the quad which I don't think would be possible if the FC reset. Any ideas? Thank you !!

specs:
CL Racing f4s
TBS unify pro
 
Curious if you're using capacitors to smooth out noise from the ESCs (or anywhere else for that matter), wondering if maybe the snap rolls/flips are causing some capacitor to temporarily make a connection and break it that could be causing voltage to spike or drop.

Did a quick search too and this forum seems to indicate same as above check components if it has always been like this consider adding caps, if you have caps check they are well connected: https://intofpv.com/t-camera-cuts-out-on-flips-and-rolls
 
Wafflejock thank you very much for the reply, I appreciate it! After reviewing the thread you attached I started investigating the voltage spike situation and found out my vtx was resetting (static screen instead of blank screen for the camera cutting out) so it was definitely getting voltage spikes and restarting the vtx. After some more searching came upon one of Bardwell's videos here showing this situation on my exact board:

In the comments section there is a reply from Armattan to reflow the solder bridge for the 9v regulator option so I did that and now everything is working great. This is something specific to the CL Racing F4 (older version) board I think. I just wanted to update this thread in case anyone comes upon the same situation, thanks.
 
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