Question about LG DU-62SY20D 62" Rear Projection HDTV

1 Answer

Mitsubishi Projection TV: Menu is in perfect color, Video is gray

Hello,
I just got a Mitsubishi projection tv from my friend's dad. I don't know all that much about it's history, but when I play video on it, all I get is grayscale. The strange thing about it though is that the tv's menu screen
is in perfect color. Also, when I set the crosshairs I can see red, green, blue, and any color in between by moving the crosshairs to and fro.

I'm very confused! How would it work for the menu, but not for the video?
Help is much appreciated! Thank you in advance.

Posted by on

  • 1 more comment 
  • rtldan Feb 18, 2009

    Hello Dan!
    Thanks for your reply. I am connecting with the standard yellow video cable and red + white audio cables. Thanks for the tip! I'm not able to check the tv's settings at the moment but I will do so tonight and get back.

    Thanks again!
    -Daniel


  • rtldan Feb 19, 2009

    Hello Dan!
    My video source was a yellow RCA cable into a yellow RCA port. But as a test I connected a source through the S-video port. Wa-la! This worked! Everything looked normal.

    Okay, here is where I win the "bad amateur decision" award. I mistakenly thought that the RCA problem might be a setting that was incorrect, so I got to the service menu and reset the eeprom (E2RESET). Oh ****. Now everything looks horrible. After a night spent scouring the web, I was able to get everything pretty decent EXCEPT for the horizontal convergence. After a few hours of twiddling I got the vertical convergence lines to match up. But with the horizontal lines I'm having a heck of a time lining up the middle lines. Do you happen to have any tips for getting this set right, or a link to something that might help? Or will I simply need to tweak, tweak, and tweak some more until it I get it right?

    Thanks!!
    -Daniel


  • rtldan Feb 20, 2009

    Hey Dan!
    Thanks again for all your help!
    I will have to break down and get a copy of that manual :)



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The gray color indicates that all of the colors are working properly. For some reason, you are telling the set that there is no color. How are you connecting to the set? If the set is expecting component video (RGB) and you are sending composite (yel connector), it will appear this way for example. Please update this with your connections and we'll figure it out.

Thanks,
Dan

Posted on Feb 18, 2009

  • ABRsvcs Feb 18, 2009

    Make sure that the source end is sending composite video and that the cable is connected to the correct spot. If that is not the problem, let me know and we'll look elsewhere.



    Dan

  • ABRsvcs Feb 19, 2009

    Unfortunately, with the complete reset, all of the parameters must be set. Your best bet is to purchase the service manual and perform the complete convergence procedure. There is a specific order to the adjustments that if not followed can have oyu trying to adjust things almost forever. I believe that the service manual is available from a number of places on the net. You should be able to locate one for less than $20.



    Good luck.

    Dan

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Here are some pics of convergence problems.


7859b01.jpg

e87380c.jpg

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Picture of a set that needs the fluid changed.

578ba6c.jpg
TV set after fluid change

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Here are some pics of convergence problems.


7859b01.jpg

e87380c.jpg

Common Problem #2) CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

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TV set after fluid change

65af323.jpg

69189a5.pngSOLUTION

You can get the correct parts, step by step photo instruction guides, and support from www.TvRepairKits.com or click here

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Here are some pics of convergence problems.


7859b01.jpg

e87380c.jpg
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You can get the correct parts, step by step photo instruction guides, and support from www.TvRepairKits.com or click here

Common Problem #2) CRT Fluid is Cloudy

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Picture of a set that needs the fluid changed.

578ba6c.jpg
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65af323.jpg

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You can get the correct parts, step by step photo instruction guides, and support from www.TvRepairKits.com or click here

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