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Question about Panasonic AG-456 Camcorder

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Camera has become lemon. (AG-456/NV-M40?)

Hrmm, I recently bought a well used AG456 off ebay and it worked for about half a year before the thing decided it didn't want to record properly in S-VHS mode, eg. only in VHS. This pissed me off, so I decided to take a look inside to see if anything was amiss, and to give it a nice good clean of the heads and such. Well this proved to be a bad idea. Some parts of the camera showed signs of salt exposure and corrosion, especially the rear power distribution circuit board. (i dont know what this is called, but it's near the battery slot and has the system clock battery on it) I took all necessary grounding precautions and then removed the board and cleaned the salty parts with a non abrasive sponge. Then after everything was connected and dry, I put it back together. Now upon switching on the camera nothing works AT ALL except the viewfinder which displays a flickering "0000" and only one button seems to effect it, which is the counter DISPLAY button, which then makes the viewfinder display "M000". No other functions work - eg. tape eject or zoom. I've even plugged the camera video and sound outputs into tv and no image is produced. I am no technical genius, but i do know that i've probably done something fairly stupid along the lines of opening up the camera. If anyone has any idea what I have done, or what I could to do to fix this, help would be much appreciated.. I miss using this great camera! Thanks!

Posted by Anonymous on

  • 2 more comments 
  • Anonymous Jan 17, 2007

    Thankyou Udupi. I shall try your solution.
    I appreciate your help, on what I thought would be a problem no one could help with.


  • Anonymous Jan 25, 2007

    Hrmm I seem to be able to find no way of responding to you on this Udupi, so...

    I'm afraid I might need some more information on the solution to this problem.

    What/where exactly can I find the Process board to main board connector.
    Or which parts are the process and mainboards...

    Thanks for your help Udupi.


  • Anonymous Jun 30, 2007

    Holy cow!!!!

    Thankyou so much!! You've made me life 100% percent happier!!

    Thankyou Udupi and thankyou tvservice for your excellent help and down to earth instructions.

    I wasn't really sure what the process board was or anything, but when you said 'they lay upon each other' i looked for a connection and found it.
    It works!!!!!!




  • Anonymous Jun 30, 2007

    Solved Solved solved!!!!

    (Sorry the Fixya rating page doesn't work for me!!!!)




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When you disassembled the camera, the process board and the main board were connected via a connector. The boards physically lay one on top of the other; the connector lies between them. When the camera is re-assembled, you need to make sure this connector re-seats when the boards are pressed together.

Posted on Jun 28, 2007



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Dear sir, Your not fixed Process board to Main board connector properly, if you fixed properly "0000" indication in EVF that will go off. Then you have to check other complents. Thank u. Reply if any problem. Raghavendra Udupi Ms.Prathiksha Electronics

Posted on Jan 17, 2007


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