Problem with Camera Board

Discussion in 'General Electronics Chat' started by hugocodi, Mar 5, 2016.

  1. hugocodi

    Thread Starter New Member

    Mar 5, 2016
    2
    0
    I recently got this camera sensor ttp://www.aliexpress.com/snapshot/7293055509.html?orderId=72676672140705

    It is a 1/3" NVP 2421 CMOS + Panasonic 34227 DSP. I have bought sensors like this one in the past and I never had any problems but with this one I get this weird digital noise with either the SDI or the composite signal. I can still navigate through the menu, I have reset the settings switched between PAL to NTSC but it stays the same.

    IMG_5189.JPG IMG_5216.JPG IMG_5217.JPG IMG_5218.JPG

    The store is not being of much help, they only offer partial refund so I am hoping that maybe I could fix it.

    Any idea on what that would be?

    Thank you so much!
     
  2. hugocodi

    Thread Starter New Member

    Mar 5, 2016
    2
    0
  3. StayatHomeElectronics

    Well-Known Member

    Sep 25, 2008
    864
    40
    Try a visual inspection of the soldering. Look carefully around high pin count chips. Unfortunately, there is a chip that looks like a BGA with no exposed pins
     
  4. BReeves

    Member

    Nov 24, 2012
    412
    64
    Me thinks it's broke.
     
  5. nerdegutta

    Moderator

    Dec 15, 2009
    2,517
    785
    Hi.

    I think you need a lens.

    From product page:
     
  6. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,348
    Hello,

    As nerdegutta said, you will need a lens.
    You can see the holes next to the sensorchip.
    Those are for mounting the lens fixture.

    Bertus
     
  7. Alec_t

    AAC Fanatic!

    Sep 17, 2013
    5,804
    1,105
    It's a job to tell from the pics, but the soldering on some of the components looks less than perfect. If a decoupling cap somewhere had a dry joint you might expect digital noise breakthrough.
     
  8. BReeves

    Member

    Nov 24, 2012
    412
    64
    Camera without a lens produces just a big blur, this camera has other issues.
     
  9. StayatHomeElectronics

    Well-Known Member

    Sep 25, 2008
    864
    40
    The sensors or electronics could saturate with ambient light. Try putting the camera in a very dark room or cover the sensor and see if the results are the same.
     
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