Question about Hitachi 43UWX10B 43" Rear Projection Television

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Blue doesn't seem to line up

When we first turn the tv on the picture is perfect, and then about 1 min later we get a yellow line on top. seems like the blue light goes out of allignment. tried the majic button several times, even after 20 min.a couple of times now the tv has been working great and then the color goes again. tried to allign the blue light manualy, no luck. Any ideas?

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Re: blue doesn't seem to line up

Blue convergence IC is bad....change both,,,original number
Stk392-110 replace with upgrade Stk394-160E Hitachi part
# CZ 01341 ....also check B+ feed resistors for over-heating

Posted on Feb 04, 2008

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Mitsubishi WS-5541 light blue glow

I know these sets pretty well--worked on a lot of them when new and later--one of two possible ideas=

1. Either a odd convergence problem==confirmed or denied by going into the convergence menu (in customer menu) and selecting advanced which will bring up a grid of lines--if see the same issue (I will attach a photo of a Mitsubishi with this problem) it can be fixed.

2. Some sort of issue with the circuit board on the end of the Blue tube(you are missing blue=black) but usually in this set if that happens it is uniform and on both sides of the screen, not the top.

Let me know what you find.

I doubt it is convergence, but does not hurt to look--if the missing area was perfectly rectangular I would suspect up/down centering adjustment.

There is one other possible thing to try--we will leave it for last--set has 3 hidden menus and one is OPTION menu which allows a hard reset of entire set--sets everything back to factory except convergence adjustments which are stored in another area.

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1 Answer

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1 Answer

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1 Answer

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