Question about Mitsubishi VS-50707 50" Rear Projection Television

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Mitsubishi VS50707 Good day: Our wonderful Mitsubishi is starting to fail us. These symptoms were come and go, and now appear regularly just seconds after the set is turned on. The three primary colors are separating, not together. Picture has "bow tie" look to it - not filling in at top and bottom in the middle. 7 years old. Thank you so much.

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  • Anonymous Mar 08, 2008

    wait 15 to 20 mins to warm up distorted pic and then becomes wavey. Turn back off wait longer

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  • Mitsubishi Master
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Convergence ICs stk392-110 you will need 2 of them.

Posted on Mar 07, 2008

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Posted on Jan 02, 2017

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Mitsubishi VS50707 - picture went out while TV was on. Sound still works. if i turn it off for awhile then back on, all three color tubes come on and flicker together for awhile before going out again....


The most common failure is the convergence IC's for what you are describing. They are large black flat-pack items mounted on aluminum, finned heatsinks. They will have numbers on them like STK392-110 or STK392-120. Yours may be different but most start with STK392-___. There may be some resistors that overheated and failed,... they are usually mounted near the IC's. They will be darkened towards the middle area. Google "Mitsubishi convergence repair kit" and you'll find suppliers who will sell you what you need , quite often with complete instructions. Here's the first one I found: http://www.tvrepairkits.com/xcart/home.php?cat=2638 This link is for your model number.

Aug 24, 2010 | Mitsubishi VS-50707 50" Rear Projection...

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It won't turn on


on off sensor/switch bad, pretty soon it probably won't come on at all

Feb 26, 2010 | Mitsubishi VS-50707 50" Rear Projection...

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Want to know if the VS50707 is an HD TV.


This unit is a analog television.

Jun 23, 2009 | Televison & Video

1 Answer

Convergence


Good Day, Hazardsneon;
No, one portion of an IC could fail, but don't replace the one that failed, replace both. Good Luck, big IRISH.

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Mitusbushi VS-4544 Horizontal lines then looses picture.


I'll take a guess here that the lines are at a slight angle. I believe that these are "retrace" lines and are an indication that the flyback transformer is starting to fail. The vertical IC would cause a collapse of the picture and bad caps in the circuit would effect the linearity of the picture. You can check for poor solder joints as they could cause any nunber of symptoms.

Keep us posted.
Dan

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1 Answer

Mitsubishi 65


My TV did the same thing for a couple of years. It is the precursor to the capasitor going out on the DM board. The good thing is that the capacitors only cost around 4 dollars if you can soldier them yourself.

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