Hitachi 43FDX15B 43" Rear Projection Television Logo
Richelle Winkler Posted on Apr 04, 2007
Answered by a Fixya Expert

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Hitachi 43FWX20B picture problem

We just bought a used 43FWX20B. After about 1 min. of good TV, the screen went to rolling geometric boxes (screen divided into approx. 40 equal sized boxes). It happened when a friend pushed some buttons on remote (we don't know what). No matter what we've tried, the picture quality doesn't change. You can tell the TV is getting the feed because you can make it out (changes channels and to DVD), but fuzzy, rolling, and boxes. This happens with satellite and DVD player. Any ideas?

1 Answer

Henry Thomas

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  • Posted on Apr 04, 2007
Henry  Thomas
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Joined: Jan 16, 2007
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Yea take the set to a tech reprogram.or take out the plug and plug it in after 30 min.if the problem does not go.do as i say.good luck.

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Hitachi 43fwx20b started with blue lins in screen then one night pic went out still powers up but no sound or pic ,but u can hear a ticking

You need to replace the STK ICs they are big black ICs and will have Part # on them- STK392-110
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Hitachi 43fwx20b Convergence Problems

These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

Convergence problems are very common on all Projection TV sets including Sony,Samsung, JVC, Philip Magnavox, Panasonic, Akai, Pioneer, Hitachi, Zenith, and others. You can get a convergenece repair kit wiith instructions from the links below.

Here are some of the most common problems with these sets...

Problem #1) Convergence

Yours may have one or more of the following symptoms
  • Screen Looks 3-D
  • Colors wont align
  • Screen may look distorted or warped
  • No Audio/Video - makes a chirping sound.
Problem #2

Another common problem is dull or washed out video.
Your TV may have one or more of the following symptoms....
  • Dull looking picture
  • White looking picture
  • Halos around objects
  • Red/Orange looking picture

You can see some more examples and find a fix here
bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull
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I have a hitachi rptv model #43FWX20B and the picture has a red tint to it. Opened back up and red green and blue bulbs light up. red bulb stays bright while blue and green go dim to bright as tv plays....

Howdy;
Since you don't have any white lines with the red screen/picture I would say that the red bulb (CRT) is conducting too much. There is an adjustment control for that. The 'sceen' control is behind the speaker cover and service cover. Turn red screen control slightly to the left until you get a good black and white picture.

Good Luck, Big Irish.
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Replace Verical IC and componets in same circuit maybe 2or3 bad capacitors. 100uf 35v ,1uf or 2.2uf 50volt. you need to order vertical Kit.
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Hitachi 43fwx20B

Good Day, firstshot;

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,
1-800-458-6053, www.bdent.com and ask for KIT10 for your Hitachi TV.
If you want some else to do the repair for you call an Authorized Service Center.
Good Luck, big IRISH.
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Good Day, cassper;
At this point call an Authorized Service Center, or check LED's light or more important the LED's that don't light.
Good Luck, big IRISH.
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The convergence Ics need replaced. In Hitachi, resistors and sometimes a coil needs replaced as well. The convergence/deflection PCB is available, but, the cost of that board is higher than having a servicer come to your home and repair the unit to component level. If you are not familar with this circuit, then call a servicer. Have them replace both ICs not just one. Make sure they are repairing to component level and not replacing the board. Hope this helps.
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