Question about Projection Televisions

1 Answer

Signal Problem I have a Hitachi projection Tv model # 57UWX20B appears to have a reception or a signal problem, I have raster, audio and PIP, there is no video and any channels except in PIP mode, all channels a scrambled as if there is no signal, I have checked and replaced the main tuner, checked cable connections, resistors, and power supply board, all checked ok, checked flybact transformer, I still can't get a picture to come up. Need help.

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 3,422 Answers

Hi,

When the sound is working and the picture is not it indicates the main power supplies are working but the picture supply is not. The picture supply that powers the projection tubes is a high voltage generator and is very expensive to repair. Not even most tv techs now how to troubleshoot them. So, I cannot recommend you repair it yourself unless you are a trained high voltage tech.

The cost of repair - my wild guess - would be around $300. However, the real cost can only be determined by someone who can make an accurate diagnosis - which will require a hands-on approach the problem.

If you have any other problem please ask me..
Goodluck,
Please don't forget to rate me as fixya..

Posted on Feb 09, 2008

  • Priya darshan Feb 09, 2008

    The problem can also be the video output circuitry or CRT filament
    connections. Check to see if the CRT filaments are glowing. If they are
    not glowing, check for bad soldering on the CRT neck board and around
    the flyback transformer.

×

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I have a Hitachi model 50ex8k in the left hand corner where the pip would apear there is a box with different color horizontal line that wont go awayr


Does the PIP button do anything to / for the box? It is just that it is tuned to an input with no signal, you should be able to remove it though with the PIP button...

Let me know what the PIP button does, if nothing that's very strange, but let me know and I can help you fix it.


Thanks
Tim

Oct 02, 2010 | Hitachi Projection Televisions

1 Answer

How do I change screen size on my hitachi TV with no remote? Thanks! :)


You can order the correct hand unit for this TV at Mats Electronics 1-800-628-1118
You can also use your CH- Ch+ buttons and the Vol-Vol+ to adjust with after you Press Menu.

Jul 02, 2010 | Hitachi 57UWX20B 57" Rear Projection...

1 Answer

How do I set up an antenna for tv signal with my 57uwx20b? Do I need a special code to put into the converter box?


U planning to get free air tv?No need for a converter box,ur tv have digital tuner inside.Just plug in ur antena.Go to ur tv menu go to setup pick air scan all ur channels,well get all free air channels.

Feb 12, 2010 | Hitachi 57UWX20B 57" Rear Projection...

1 Answer

Hitachi 57UWX20B 57 in.


Projection TV sets have two very common problems listed below.

Problem #1) Convergence


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. This is called convergence.

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,Mitsubishi,Zenith and others.
You can get more information and a DIY convergenece repair kit with instructions from the link below.

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

*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped
*No Audio/Video - TV Shuts down - May also make a constant chirping sound

Problem #2 - Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

*Dull looking picture
*White looking picture
*Halos around objects
*Red/Orange looking picture

bb0cf99.pngYou can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Sep 08, 2008 | Hitachi 57UWX20B 57" Rear Projection...

1 Answer

Hitachi 57uwx20b


First of all there is no light engine inside your set. Your model is CRT based. Can you better describe what you mean by the green only working occasionally? What exactly is the picture doing? Also, please confirm that your model is: 57UWX20B.

Thanks,
Dan

Sep 05, 2008 | Hitachi 57UWX20B 57" Rear Projection...

1 Answer

Hitachi and PS3


Just a note, I am getting ready to buy the same TV. The person I am buying the TV from says the same thing. Not sure of the answer, but If you have the answer now I would like to know. As far as the sound goes, you will have to hook it up separately, the HDMI-DVI (Digital Video input) Video being the key word, it doesnt carry the audio signal. I hope to figure the problem out this weekend when I actually get te TV and try a few things.

Jan 02, 2008 | Projection Televisions

1 Answer

Sometimes it takes a minute to get Reception


White raster with no signal, washed out looking video with signal. Access the service menu, "menu 0357" use the audio button to select "video chroma" adjustments, use the video button to select item "40 - AGIW", use the adjust button to change the setting to 0, then press the enter button to store the change

Dec 11, 2007 | Mitsubishi WS-55809 55" Rear Projection...

1 Answer

Hitachi screen scrolling


Are you using the AV outputs on the Receiver and not the composite grn-red-blue. Do you have the converter jack on the back by the ant. input? what souce on the set are you using for PIP and your main screen?

Dec 10, 2007 | Hitachi UltraVision CineForm 55VG825 55"...

1 Answer

PIP


Split incoming signal = half to each tuner ( RF coax in ) or
half to RF in and half to DVR, cable box or VCR tuner then to
Video input..........................

Download manual at www.HitachiServiceUSA.com.........T.

Nov 09, 2007 | Hitachi 43UWX10B 43" Rear Projection...

Not finding what you are looking for?
Projection Televisions Logo

Related Topics:

54 people viewed this question

Ask a Question

Usually answered in minutes!

Top Projection Televisions Experts

Jaime Hernandez

Level 3 Expert

2267 Answers

matt martin
matt martin

Level 3 Expert

1191 Answers

yadayada
yadayada

Level 3 Expert

60667 Answers

Are you a Projection Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...