Question about Hitachi 46F500 46" Rear Projection HDTV-Ready Television

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The magic focus does'nt seem to reset the auto convergence on the tv. Do you have any sugestions

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  • Hitachi Master
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The Magic focus button,not in effective anymore.The tv is 100% have convergence problems,it dead.The tv colors lines R,G,B mis alignment,have colors shadows pictures or 3D pictures look alike.The tv convergence board have dead 2 STK convergence ICS and some or all of it resistors are dead too.These parts on the tv convergence board,must replaced these parts on the tv convergence board to solved the tv picture convergence problems.The shop,will cost u like $300-350 for parts and labors.

Posted on Nov 07, 2010

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1 Answer

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If Magic focus will not correct it (it is the limited auto convergence for this set) both the convergence chips which should be stk392-110 or 150 will have to be replaced, convergence is done with the original remote with set in the Decam ( tech convergence mode).

The parts are not that expensive and TVrpairparts.com sells kits with instructions for these sets by model number.

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Model does not sound like Hitachi but if it is have you unplugged the set? The magic focus is a auto convergence circuit in the Hitachi sets.

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Sounds like your blue convergence module is faulty along with a few resistors. There is two convergence modules in your set(stk-392-020) and when one fails, the both of them are usually replaced with a matched pair .If you have a good knowledge of electronic you may replace them yourself.otherwise you`ll need the help of a tv repairman. Hope this help. Good luck

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1 Answer

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if magic focus will not correct convergence problem look in the customer menu for the word CONVERGENCE---IF BLUE WILL NOT ADJUST IN some direction, one of the two Stk-392-110(or 392-150) convergence Ic chips are bad; you may also find some burnt or discolored resistors behind them----this kind of problem is usually fixable right in your home; if you need direct help;;;



etower.766@netzero. net


If this was helpful I would appreciate a vote from you here.

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1 Answer

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Ur convergence is dead.Buy the convergence kit,replace what in that kit.Tries these websites Tv Repair World.com Shopjimmy.com Ebay.com or Partstore.com.

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lupe0112,

I'm no expert, but I think that you have a problem with the convergence of the 3 color guns. I've been working on a similar problem. As a first step, have you tried "Magic Focus?" The Magic Focus button for the Hitachi 53UDX10B is at the left of the small front panel controls that also include your RCA composite and SVideo connectors. Let the set warm up for about 20 minutes (as recommended by the user guide), and then press the Magic Focus button. When you press the Magic focus button, the set will auto align the 3 color guns. If this doesn't fix your problem, unplug the TV for at least 4 hours and try again.

Jan 08, 2009 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

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Sounds like a Convergence IC problem, the convergence ics would need to be replaced. This can be done by yourself or a professional.

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1 Answer

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use the advanced options page and reset the factor blue and red convergence defaults then do re apply the auto color defaults color at first it seemed very red (which is good because red was the missing factor in the green picture) but after reseting all the color and tints to the normal ranges I then reset the color auto correct again and all seems fine.

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1 Answer

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Repair Magic focus or convergence problem? Because MF is the way you auto set your set to converg and focus.

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