Question about Mitsubishi WD-52525 52" Rear Projection HDTV

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Blue screen with static ball ...

My screen displays a blue background with many horizontal lines that give the general shape of a ball in the center of the could call the ball white or baby blue as its intermixed with the background I think. I know the bulb is on its last leg as its been two years since its been replaced and the tv is whining about it but wouldn't think I could have anything displaying on the screen if the bulb was out...? Anyway I'll rip into it if I have any hope of fixing it or have an idea at least of whats wrong. The sound was that of static (matched the picture) which tended to make me think it was input so I took the cable box out of the path...same results. Then after 10 to 15 minutes it shut itself off which more or less took the signal theory away. Could it be a bulb even displaying the blue background or does it sound more like a different problem.
Randy Petty

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  • samanthacarp Jan 06, 2008

    I am getting the exact same problem. It started today and ended with the blue screen. Before, the picture was bouncy, but I had sound. Our bulb is also on its last leg, but again, i don't think its a bulb problem, as if it were, would we see blue at all?? I can't fix tv's, so checking anything out myself is out of the questions-I wouldn't know what I was looking at. So, if anyone has any thoughts of what might be wrong and advice about repair vs. purchase, I would appreciate it. 

  • Anonymous Feb 29, 2008

    Same problem over here. Bulb is also on its last leg. Have you resolved this yet?

    I see the same screen when i put a DVD in......

  • eyol3 Mar 01, 2008

    I have the same problem. I did the self test by pressing Menu and Device at the same time and got 12, which I think means "No error - check power supply", or something like that. It is not a lamp problem, because if it was there would be no blue screen, and there would be a red light on the front panel. My screen currently looks blue (which is normal) but with a whiteish circular area in the middle, which sometimes gets bigger, and sometimes gets smaller. When it gets bigger, it turns into a large bar across the middle of the screen. Any help would be appreciated.

  • cysgr8 Mar 03, 2008

    exact same problem over here... bulb on very last leg. Had the problem for 3 days now and had a tech come look at it. He seems to think its the TUNER. which is supposedly $1k to replace..............

    Oh yeah... bulb died today........... I'm really tempted to get a new bulb just to see if it randomly fixes it.


  • prp53 Jan 23, 2009

    I fixed my problem...junked the TV and bought another one. A technician came out and quoted me 1500 to fix it, said it needed a new color engine, so I spent the 1500 on a new plasma...see how this one holds up.

  • workalot6 Jan 26, 2009

    Same problems,



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OK guys, i posted above and i found what the problem might be... Last night we took apart the tv (according to another post in this forum) and found the power supply which is behind the tuner..

then we saw the capacitors were busted on it.... it looks like this :

see how they are buldging on top in stead of just flat... and sometimes it will have a hole... like its busted.

So hopefully, replacing those will fix it... supposedly you can order them from mitsubishi for like $5 and have someone solder it on for you.

Posted on Mar 05, 2008

  • cysgr8 Jan 26, 2009

    update... we did order the capacitors and had a tv repairman soldier it on.. it fixed the problem and only cost $15.


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Do self test first

Posted on Dec 31, 2007


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dc2eb76.jpg MikeNJ1964
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You have a completely different problem. The screen voltage for the blue picture tube is slightly too high on your set. This will put fine lines in the background of the picture, called retrace lines. This is very common and easy to correct. Remove the front speaker cover and the access panel behind it. Look inside and you will see a black box with six controls, each control having a little white glue on it. This is the Focus/Screen block. Three controls are labeled Focus and three are labeled Screen. The screen control in the center is for green but I am not sure if the screen control on the left or right is for blue for your model. With the TV on, set it to VIDEO 1 but do not connect anything to the VIDEO 1 jacks. This will produce a pure dark picture, showing any faint lines in the background. Choose one of the screen controls and increase (turn clockwise) it slightly. If the blue lines do not get brighter it means you are turning the red screen control, so put it back where it was and choose the other screen control. When you find the blue screen control, decrease (turn counter-clockwise) it until just when the blue lines are gone. If you want you can check that the red and green screen controls are set to just below the point where their faint lines are visible. When done, replace the panels and your picture will be back to perfect.
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MikeNJ1964 was exactly right! I have a Sony KP-65WV600 that had horizontal green lines that showed when the picture was darker. I had to remove 3 screws on the right and left side of the tv holding in the speakers...carefully pop out the middle panel from the clips holding it in....remove 4 screws from the cardboard in the middle and remove the cardboard. I then saw the six screws. The adjustment screws were the three below. I turned the middle screw until the lines dissapeared. I tried the left screw and blue lines appeared which I then adjusted away.
THANKS a bunch. SAVED me money!!!

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Further assistance needed

I just replied you and here once again...

Please pull front speaker grill and find focus block, fixed at corner having 6 control knobs on it.
Find Blue Screen control knob there.
Put your TV in AV mode to get dark screen and just press Display button on remote to have AV display.
Now slightly rotate control knobs counter clock wise until thin lines (retrace) disappear. Job is done and put back speaker grill, press display button again to disappear screen display.

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thank you.

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