Help to identify PCB board please

Discussion in 'General Electronics Chat' started by Eggy78, Aug 23, 2014.

  1. Eggy78

    Thread Starter New Member

    Aug 23, 2014
    2
    0
    Hello All,

    I'm a complete novice when it come to this stuff so please be kind ;)

    Please see pictures attached.

    The board is for a down hole camera which I'm unable to get a picture feed through on a monitor. There is a slight burn mark on the left which has steered me to thinking this board may be the culprit. Easy to replace cheap to buy?
    Whats it even called? Video Card?

    Cheers in advance!

    David
     
  2. Brevor

    Active Member

    Apr 9, 2011
    279
    54
    Both the IC's on your board are burnt, They may have had too high a voltage applied or reversed voltage. Sorry there is nothing you can do to fix it.
     
  3. THE_RB

    AAC Fanatic!

    Feb 11, 2008
    5,435
    1,305
    Wow that's nasty. I'm thinking reversed voltage, probably from a high current source like a battery.

    What is it out of?
     
  4. Eggy78

    Thread Starter New Member

    Aug 23, 2014
    2
    0
    Hi Brevor and THE_RB,

    Really appreciate your information. It comes from a winch and camera housing that's used to check for any defects in the rock or casing down drill holes, up to depths of 200m+

    I've been quoted $600 aussie $ to replace, which I thought was bloody high, but I'm used to high Australian prices :(

    $150 from the US.

    The reel and camera are even more expensive so I just wanted to get some info on this component of the gear before I scared myself with replacing the other bits.
     
  5. THE_RB

    AAC Fanatic!

    Feb 11, 2008
    5,435
    1,305
    I think the first thing to work out is WHY it failed. That is not a spontaneous failure in the field, it has died due to extreme abuse.

    If you knwo what the failure was (like someone shorted a wire out, or reversed the PSU) then all is ok you can just replace the unit.

    If you don't know the cause and it might re-occur then replacing the unit could work out doubly expensive. ;)
     
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