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

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Has a wave in the picture half way across top of screen

Hitachi projection mod# 46f500 the tv picture has a wave across the top about half way...tried to magic focus in the menu screen but no luck any suggestions....thanks

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You most likely have a convergence chip bad. In our shop, when we are working on projection TVs, we find that about 80% of the repairs we make are the same problem you are having. You need to replace the convergence chip ( there are 2 of the same chips on the convergence board, and I suggest you replace both ). If you are going to attempt the repair yourself you'll need to remember to use lots of heat sink grease so you don't have the same problem again. Also, try to get original parts, as there are times that the after-market ones don't work well. As a precaution, always remember to unplug the set from the wall before you do any work on the set. Good Luck
Ed
NC Electronic
Mills, Wyoming

Posted on Jan 08, 2008

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Posted on Jan 02, 2017

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Hitachi 53udx10b screen is dark, very blue and red. there is a red wave across the top of the screen. there is a blue "ghosting" of any text on screen.


The tv have a problems known as a convergence picture problems,it is dead.Tv set have any colors lines R,G,B mis alignments,have colors shadows pictures or 3D pictures look alike?Yes,than the tv convergence board it is dead to causes all these problems.Now the tv set convergence board must have to be repair like replacing 2 STK convergence ICS and some or all of it resistors too.To fixed the tv set convergence board to solved the tv set convergence pictures promblems.The tvs shops will cost u like $300-350 for parts and labors.

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My Hitachi 46F500 TV will not adjust either manually or in magic focus mode......it has green lines across top of screen and some red tinting in the picture ......is this a gun issue or mirror in need of...


Hello,

Replacing the lamp will do the job. It is the lamp that is faulty not the gun or the mirror.

It will cost just a few box to get a new lamp.

Take care and good luck

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Your TV most likely has a Convergence Chip Failure ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem

  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
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2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together convergence repair kits for most models.

The kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, etc. Everything you will need to do the repair yourself.

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a common problem wich i also have with convergence with blue and red convergence.
the image converge amplifiers are burnet out wich in turn blow out resisters that control individual color convergence.

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If you did manual conv. You have to redo it when you replace the bad parts. Them being conv. ic's replace them and check 1/4 watt resistors that are low value right beneath amps. Careful not to solder any foil pads together or you will have major problems. Very common for do-it-yourselfers. Good luck, Russmann.

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Convergence IC's bad==replace and then
re-check alignment

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