Question about Mitsubishi WS-55513 55" Rear Projection HDTV

2 Answers

Cap replacement didn't entirely work dead tv problem half fixed

I read on here about the blinking light that wont go away after a service man came charged me 100 dollars and said the dm board was bad throw the tv away.i found the caps and replaced them i got the tv to power up now but no picture just a few squiggly lines of color and no responce from the front buttons or the remote and after ahwile the tv shuts itself off thank you for any help i think at least it's starting to get better just don't know what to check from here

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  • 5 more comments 
  • csccfarrell Sep 11, 2008

    thank you for answering yes i replaced all 4 and they are direct replacements all numbers match on the caps 1000uf 16v 105c only difference is different brand and taller i double checked the polarity while i was doing it and again now it's marked on the board pos and neg and the caps have the same neg stripe down the side as the old ones.i can't find any wires off anywhere and the first time i set the board it didn't power up and i had to reseat it by leaving the case loose and seating the board by itself then sliding the case the rest of the way down that made it power up but i get no picture just a fer color lines and none of the controls work accept on and off and it shuts down after a couple minutes on it's own. i am very new at this never worked on a tv before so any advice i get is very helpful i had a repair man out he said it had a bad digital board had to be replaced not available is it possible he moved wire plugs while working on it some of the plugs look the same in there but they are all plugged in as i found it thanks again for the help.

  • csccfarrell Sep 11, 2008

    don't know how to get a picture on this but i'll do my best to describe it the screen after it turned on had thin wavy lines going horizontaly acrss the screen all three colors like threads in a wave pattern hard to see not bright weaving into each other if i did take a picture you would never see them too dark a screen the bulbs inside the set were flickering when it was on i'm not sure what you want to see on the dm board i'll try to get a pic on here if you can tell me what you want to see thank you very much for the help.

    chris.

  • csccfarrell Sep 11, 2008

    the repairman did open the front of the set i don't know what he did i know he never opend the dm board he just said it was bad there are plugs inside empty next to ones with plugs in them i didn't unplug anything but is it possible the repair guy tried different spots for the plugs? and i really really appreciate this tim i can't afford a new set or another hundred buck for some guy to tell me it's shot throw it out i never worked on a tv before in my life but when i read about all the people on here with the same problem it was worth a shot and i do have power now just no picture thanks so much.

    chris.

  • csccfarrell Sep 11, 2008

    turned them counterclockwise no picture at all now just black screen light is on but no lines or anything i turned it off

  • csccfarrell Sep 11, 2008

    ok i turned it up till i could see lines one color at a time like a weave all across the tv then turned it down till they went off then tried for a 1/4 turn but they were only turned clockwise barely a 1/4 turn before the lines showed up now black screen nothing from the menu button or channel or anything no picture

  • csccfarrell Sep 11, 2008

    i just walked away from it and left it on and it shut itself off in a couple minutes.

  • csccfarrell Sep 11, 2008

    yes it is plugged in it splits to two plugs on the board under the red tube one labeled sm and sp

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2 Answers

Trying to hang tv but don't know how too take apart the stand on the bottom of tv

Posted on Oct 07, 2008

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Did you replace all 4 caps in the board? And did you put them in with the correct polarity? Also check to make sure that no wires came loose durring the repair and that you got the dm seated back in the tv right. Also what size caps did you put in?

Tim

Posted on Sep 11, 2008

  • 5 more comments 
  • experttv
    experttv Sep 11, 2008

    Can you post a picture of what you are seeing on the screen and a picture of the top and bottom of the board where you were soldering? If you cannot get pictures then please describe the lines you are seeing in as much detail as possible, are they vertical or horizontal? what color are they? where are they on the screen. Let me know so i can help you?



    Tim

  • experttv
    experttv Sep 11, 2008

    Ok you have retrace in all three tubes, at this point we need to be carefull, we dont want to damage your set. Either there is a cable unpluged or someone turned up all the screen controls. Did either you or the repairman open the front of the set? If noone opend the front of the set then you must have the 200v line unpluged. Let me know about opening the front of the set, and in the meantime I will pull a manual and find the 200V line plug.

  • experttv
    experttv Sep 11, 2008

    Ok well hopefully he turned up the screen controls. Take off the front of the set and look at the black box with 6 control knobs on it. this is called the focus block, look closely at it with a flashlight to see what 3 are for focus and what 3 are for screen. (the top 3 should be screen and the bottom 3 should be focus if im not mistaken). turn all 3 screen controls counter-clockwise as far as they will go then turn the set on and let me know what happens

  • experttv
    experttv Sep 11, 2008

    ok, now we are getting somewhere...I want you to turn it on and slowly turn up each screen one at a time untill you get those lines, then back it off untill you dont see the lines again then go 1/4 turn furthur. Do this for all 3 screen controls and let me know if you have a picture or not (if you dont have a signal hooked up to the tv you can just press the menue button and let me know if that shows up.



  • experttv
    experttv Sep 11, 2008

    Ok looking from the back there are 3 big boards in the bottom of the tv. We want to look for the one on the right and look for a cabel labeled PM it should have 7 or 8 wires in it. and should run up to the little board hanging off of the red tube. That set should shut off with no signal after a few mins dont be to worried about that as long as it comes right back on. We need to make sure that PM is pluged in on both ends

  • experttv
    experttv Sep 12, 2008

    Sm and SP are pluged in as well? At this point do you know how to use a meter? Give me a call if you like 904-885-2203



    Tim Nolan

  • experttv
    experttv Sep 12, 2008

    Try taking the dm out and putting it back in let make sure that its connecting on all pins. also if you can send me some picture of the work you did on the board that would be good.

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