plasma clicks but dont turn on

Discussion in 'General Electronics Chat' started by true4, Apr 6, 2011.

  1. true4

    Thread Starter New Member

    Apr 6, 2011
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    trying to figure out a plasma that wont start it just clicks from the relays its a samsung hp-r5052,
    i replaced the LJ92-01045A X-Sustain / Z-Sustain Board for SAMSUNG HP-R5052 it was burned,
    and dont see any capacitors blowned unless there bad but i dont see it whats next to check? i can replace it i have an iron, whats next to check ? i need help please
     
  2. RFactor

    Active Member

    May 1, 2009
    33
    3
    Do you have a schematic?
     
  3. true4

    Thread Starter New Member

    Apr 6, 2011
    21
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    no i dont sorry, i just seen right now that on of them wire ribbons is cut
     
  4. RFactor

    Active Member

    May 1, 2009
    33
    3
    A photo or two might help then.
     
  5. true4

    Thread Starter New Member

    Apr 6, 2011
    21
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    here it is a picture <a href="http://s272.photobucket.com/albums/jj189/PhotoMe4/?action=view&current=CIMG0557.jpg" target="_blank"><img src="http://i272.photobucket.com/albums/jj189/PhotoMe4/CIMG0557.jpg" border="0" alt="Photobucket"></a>
     
  6. true4

    Thread Starter New Member

    Apr 6, 2011
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  7. true4

    Thread Starter New Member

    Apr 6, 2011
    21
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    i kno there are 3 tiny wires cut
     
  8. true4

    Thread Starter New Member

    Apr 6, 2011
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  9. true4

    Thread Starter New Member

    Apr 6, 2011
    21
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    im going to try to soldier copper tiny wires to it
     
  10. true4

    Thread Starter New Member

    Apr 6, 2011
    21
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    [​IMG]
    <a href="http://s272.photobucket.com/albums/jj189/PhotoMe4/?action=view&current=CIMG0575.jpg" target="_blank"><img src="http://i272.photobucket.com/albums/jj189/PhotoMe4/CIMG0575.jpg" border="0" alt="Photobucket"></a>
     
  11. true4

    Thread Starter New Member

    Apr 6, 2011
    21
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    [​IMG]

    ill just tape it away from others. and try it
     
  12. true4

    Thread Starter New Member

    Apr 6, 2011
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    didnt work, still clicking the same 1 click the lad light lights up wait 5 sec then 2 clicking sounds i think it turns off the plasma, is it becouse i dont have nothing pluged in? like an antena or a ps3
    just wanted to give a try
    you dont think its something else or you think three broken mylar ribbons will not start up the screen
     
  13. PackratKing

    Well-Known Member

    Jul 13, 2008
    850
    215
    Disconnect the set from all power, and leave it sit for a couple days. Use a proper resistive capacitor discharging tool, and be sure the large caps in the set are neutralized.

    Then.........Disconnect and brush all ribbon connectors gently with something on the order of a fiberglas scratch brush, or an abrasive eraser, then reconnect them.. Same goes for any board-to-board jumpers, check for bent pins, or and tarnish / dry corrosion.......check all boards thoroughly for burn spots, or blown fuses/components and repair any cold solder connections. You'll have to look close for connections that aren't real shiny, or have obvious looseness around component pins / leads.
    Look also very closely at all IC chips, for any detritus, metallic or no, lodged between pins that could be mis-directing signals.
     
    Last edited: Apr 7, 2011
    true4 likes this.
  14. true4

    Thread Starter New Member

    Apr 6, 2011
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    how do i discharge the capacitors, and fuses are good let me check more :eek: and how do i check cold solder?
     
  15. true4

    Thread Starter New Member

    Apr 6, 2011
    21
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    when i unplug the x bord from dc-dc bord the relays click on right and you hear a beep sound like the tv startes black screen but i think now is the x bord is bad,,,
     
  16. RFactor

    Active Member

    May 1, 2009
    33
    3
    Did your repair solve the problem?
     
  17. true4

    Thread Starter New Member

    Apr 6, 2011
    21
    0
    yes!!!!! you right and i finally got the set started without the X bord.
    i figure out that the votage rgulater where you turn it up or down with a small screewdriver was bad so 2 day im going to replcae it,
     
  18. true4

    Thread Starter New Member

    Apr 6, 2011
    21
    0
    [​IMG]
    [​IMG]
    i need this adjustment pot anyone kno which one i need the ohms or v?
    the pre owner broke it, he turn it all the way around and now i cant ajust the volts going from main bord to dc-dc bord
     
  19. true4

    Thread Starter New Member

    Apr 6, 2011
    21
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  20. true4

    Thread Starter New Member

    Apr 6, 2011
    21
    0
    [​IMG]
    ve on the dc-dc Bord needs to be about 80~120 and its like 10.0 something that
    and the va on the main bord needs 60~80v and its putting out 450~657 and i cant adjust it on the pot
     
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