Question about Hitachi 57SWX20B 57" Rear Projection Television

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I have a Hitachi 57 " rear projection TV, the screen is dark

I have a Hitachi 57 " rear projection TV and the screen is very dark. What can I do to fix this? Is there a part that I can get that will fix this. 57swx20b is the model number that I have.

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  • jeffry_leste Apr 17, 2009

    the color got bad on the screen and i had someone come out to adjust the color/picture. Now it looks much better but it's dark. This guy told me that he thought one of the lenses? color? were going out on the tv and needed to be replaced. the Picture is still uniform

  • jeffry_leste Apr 17, 2009

    the picture got bad over time. I had someone in that adjusted my system and now it looks good, it's just dark. This guy said that I have a lense? or color?going out and needs to be replaced. The picture is still uniform. In fact, it very good just dark.

  • Jim Krause May 11, 2010

    Did it go dark all at once or over time?

    Is the picture still uniform?

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  • Hitachi Master
  • 1,779 Answers

Unfortunately it sounds like your CRT's ( picture tubes ) are getting weak. You have 3- red, green and blue. It would not be in your best interest to repair it because of the cost of the crt's and if we can still buy them. A lot of analog parts such as those are very hard to locate and is getting worse by the day.

Posted on Apr 17, 2009

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Posted on Jan 02, 2017

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SOURCE: Sony KP-57WS500 57 in. Rear Projection Television

Hi Guys

Your problem here has to do with the amount of aging that happens to the three colour tubes - red, green and blue.

Blue actually ages slower than red and green. What actually happens is the green tube deteriorates and due to green being the predominant colour for brightness causes the blue tube`s flyback lines to appear - especially when switching between inputs or when the video is blanked.

No replacing the blue tube will not solve your problem as the tube is actually the best one of the three.

As someone mentioned there is a way to adjust this by removing the speaker grill assembly in front of the set. Doing the service mode adjustment with the remote is not the right way to solve the problem - you would be adjusting the colour gain and off-set values and would seriously be compromising the white balance of the set.

On the left hand side behind the speaker cover you will see a black square block with six adjustment points. Look for the one marked SCR BLUE, Switch the set to a unused input so the blue lines become visible. Now adjust the BLUE point counter clockwise until the lines disappear. A small adjustment should do it, Switch back to a picture and make sure the whites are still white.

This should sort your problem. I would however suggest asking a Sony service centre to do this for you. This is a dangerous thing to do as you will be working close to the 35Kv supply the the anodes of the three tubes.

I hope this answers your question.

Goo luck.

Posted on Mar 08, 2008

SOURCE: CONVERGENCE

50 in projection TV has horizontal blurring lines at the bottom half of the screen, picture visible , but blurred. Can you identify the problem and the fix?

Posted on Apr 23, 2008

ctf1800
  • 4402 Answers

SOURCE: cleaning tv screen of hitachi rear projection tv

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Posted on Jul 07, 2008

  • 1 Answer

SOURCE: looking for replacement screen for 57" Hitachi.

http://www.highdefforum.com/rear-projection-tvs/37146-hitachi-57f59a-screen-replacement.html



I have the same TV. I will be buying a replacement Screen for mine as well

Posted on Sep 26, 2008

  • 298 Answers

SOURCE: LOOKING FOR A SCREEN ASSEMBLY FOR A (HITACHI) REAR

Here's a link to order the original Hitachi screen assembly for this model (57F59A) from a major parts distributor:

Hitachi 57F59A Replacement Part Screen Assembly

Hitachi 57F59A Replacement Part Protective Screen / Super Shield

Posted on Apr 02, 2009

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