Question about Hitachi 50UX57B 50" Rear Projection Television

3 Answers

Hitachi 60" rear projection, convergence

While watching our 11-year old TV, the convergence jumped out of setting. The red goes off-center and cannot be reset. Sometimes it works OK, but more not. I noticed that if you bump the cabinet, the picture jumps too, didn't before. Cold solder joint, or other?

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  • Scorpio Jul 31, 2008

    Yes I had the exact same problem. But also I have an inverted bowing the horizontal edges. I checked the board while it's on and found all of the green lights are on exempt for the one closet to the main power supply.

    For your convergence problem I've found that if your press the service mode button on the front of board and use the number buttons on the remote, you can adjust the position of the red and blue (green is stationary). I hope this helps you. Can someone help me with the bowing effect?



3 Answers

I have the 70" model. The convergence chips are failing. They aren't hard to replace if you have some soldering experience. Once you replace the chips, it's always good to follow the the "Service Mode" Convergence allignment and save.

Posted on Oct 15, 2008


The link you provided for the manual is not an active link.

Posted on Aug 25, 2008

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Check out this document to adjust your Hitachi projection t.v. I did my 11 year old t.v. today.


Posted on Aug 13, 2008

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1 Answer

On one side of the screen the red projection doesn't line up with the others. It is about 1" off at teh edge of the screen and lessens to where they align about 11"-12" towards the center of the screen. ...

The tv have a problems known as a convergence problems,it dead.The tv colors lines R,G,B mis any alignment,have colors shadows or picture look like 3D pictures.The tv convergence board the 2 STK convergence ICS and some or all it resistors are dead.These parts on the tv convergence board,must be replaced to solved tv convergence problems.The shop,will cost u $300-350 for parts and labors.

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Good Day,

This is a common problem with this TV, but there is an upgrade to correct the CONVERVGENCE circuit problem.
If you want to repair this concern yourself: Contact: B&D ENTERPRISES,
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Keep us posted.


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You need to most likely replace the convergence output IC's probably STK392-110's and check associated resistors around it. HD is not mandated for 2009, only digital braodcast it is at that point all analog television broadcast must stop.

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