Welcome to PhantomPilots.com

Sign up for a weekly email of the latest drone news & information

Red tinge on screen when motors start

Discussion in 'FPV (First Person View)' started by Malolo, Jul 11, 2014.

  1. Malolo

    Joined:
    Mar 23, 2014
    Messages:
    14
    Likes Received:
    0
    Howzit guys!

    So when I power on my p2, I get a perfectly clear screen and good color going to my black pearl. But when I start my motors, I get a red tinge on my screen. The tinge stays on during flight until the motors are shut off. I was thinking it was my vtx cables being too close to other wires so I opened up the shell, isolated the cables from the others and fired up the motors with the same results. My immersion RC vtx is located inside my phantom, but I took that out too and that didnt solve the problem. I removed my pig tail SMA extension connector and plugged my blue beam ultra directly into the VTX, still the same problem. I have never fired up the VTX without an antenna, so I dont think that could be the problem either.

    I'm pretty confident in my soldering job (been soldering things off and on for a couple decades now) but thats the only thing I can think of. I used some RA flux to do the solder job, could that attribute to the red tinge I am picking up when the motors are running? Anyhow, if anyone has some thoughts, I'd love to hear them. Thanks!

    Malolo
     
  2. JesterR1

    Joined:
    May 7, 2014
    Messages:
    41
    Likes Received:
    0
    Just a thought, but are you sure its not just a "glare" from the red LED's on the bottom parts of the motor arms? The IMU leds....
     
  3. Malolo

    Joined:
    Mar 23, 2014
    Messages:
    14
    Likes Received:
    0
    Thanks Jester but definitely not glare from the LED's!

    So I am still troubleshooting the situation with no luck. Here is what I have done so far:

    1. Bypass the anti-interference boad - no luck
    2. Bypass the iOSD unit - no luck
    3. Remove all solder points and reconnect with bare wires and e-tape - no luck
    4. Swap go pros cameras - no luck
    5. Swap Antennas on the VTX, and black pearl - no luck

    I guess the only thing left to swap out is the IRC VTX to see if thats the root cause. If the problem still persists after swapping the VTX, then I would venture forth to guess that it has something to do with the electronics on the main board. I am running firmware version 1.08 but cant imagine that to be the problem.

    Anyone else have any suggestions? Thanks!

    Malolo
     
  4. Deadmeat

    Joined:
    Dec 28, 2013
    Messages:
    42
    Likes Received:
    1
    Location:
    Co.Antrim, Northern Ireland.
    Can you screw the gimbal off the airframe and screw in onto something just to see the displayed picture from a different perspective. Might tell you something. I know your limited by the ribbon cable but maybe worth a try.