Question about Hitachi 46UX24B/25K 46" Rear Projection Television

7 Answers

Picture is closing in from sides

Picture is not clear, fuzzy, colors are brighter than normal with shades of red more prominent throughout picture, and it is closing in from the sides to the middle of the screen. It will turn on and off. The remote still works fine and the channel selector works.

Posted by on

  • daisyaday2 Jan 27, 2009

    Should I replace the

    The picture is closing in from the right and left sides. What can I do about the horizontal side, the vertical is fine.

    I cannot adjust the convergence on this set because it is digital and not manual.

    The model is 46UX25K.

    Should I replace the horizonal output transistor?

    Thanks for any help.

  • daisyaday2 Jan 27, 2009

    I don't know any part numbers.
    My user manual doesn't list any of those.

    Do you sell a service manual for this model?

    Hitachi 46UX25K

×

7 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Hitachi Master
  • 19,396 Answers

Re: "is closing in from the sides to the middle of the screen"

A: thatt eans that one of the convergence ICs had blown, the website below reports instructions on how to fix the problem.

Fixing Convergence problems in RPTV's

Posted on Jan 28, 2009

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Sergeant:

    An expert that has over 500 points.

  • Expert
  • 320 Answers

Hi,
Please go through thwe service manual once by clicking on the below link..
http://www.hammerwall.com/Manuals/46UX25K/Hitachi%20Projection%20Color%20TV/L0110047/

i think you need to replace the convergence ic's...
For more on this, go to below link..
http://www.partstore.com/Part/Hitachi+Ltd/Hitachi/46UX25K/Matsushita/Panasonic/STK4274/New.aspx

Thank you........

Posted on Jan 27, 2009

  • 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
  • 1,011 Answers

Sir,
U must replace convergence IC's itself. it will be OK

Posted on Jan 27, 2009

  • 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.

    Brigadier General:

    An expert that has over 10,000 points.

  • Master
  • 8,619 Answers

Kindly check the PIP settings and set it default

Posted on Jan 27, 2009

×

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 10,594 Answers

Please replace convergence ICs in Hitachi 46UX25K TV
Required ICs are available in Part Store.
lease do the repair of TV if you have basic electronics knowledge and good soldering skills or get help of local TV repair shop.

Posted on Jan 27, 2009

×

  • 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.

    Brigadier General:

    An expert that has over 10,000 points.

  • Master
  • 6,966 Answers

Hi and welcome to FixYa,

Initially, your described problem could indicate a pincushion or a convergence problem; both of which are hardware related. They further indicate that some components have failed or about to fail.

This of course would require opening the unit, perform voltage measurements,determine faulty component and subsequent part(s) replacement. Further, a fair familiarity of electronic components/circuitry and safety procedures, use of a DVM and a soldering iron would be required. It would be to your added advantage access to a service manual or at the very least a schematic diagram with voltage readings.Should you be uncomfortable performing a DIY (do-it-yourself), perhaps your best bet would then be to seek the services of a qualified professional.

Good luck and Thank you for using FixYa.

Posted on Jan 27, 2009

  • 1 more comment 
  • Louie  Role
    Louie Role Jan 27, 2009

    Closing in from the sides is the hour glass effect, it is a pincushion problem. Although that it would seem to be a horizontal issue, it is likely that the convergence circuitry is at fault and loading the horizontal secondary.

    If the horizontal output transistor is defective, there would be no High Voltage and therefore no picture.


  • Louie  Role
    Louie Role Jan 27, 2009

    This convergence alignment manual may be of help.

  • Louie  Role
    Louie Role Jan 27, 2009

    Another member of the site, welcomejee, has posted a source of service manual here.

×

  • 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
  • 1,550 Answers

It Sounds mostly like a convergence problem.
First try using your set's user convergence mode.

Also chance of bad solder on red driver transistor on red picture tube.

Posted on Jan 27, 2009

×

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Television is a Tosiba DLP 72HM195


your tv needs a y-load board its like a grafix card as computers have due to overheating the board components are affected this is a manufacturing fault it tends to happen with samsung aswell

Feb 22, 2012 | Toshiba 72HM195 72" HDTV

1 Answer

Samsung LCD cm07 good then bad picture, powers off and on


well this could be a power supply issue try this web site they could have the part www.discount-merchant.com
Ness

Jan 05, 2010 | Samsung HLN5065W 50" Rear Projection...

1 Answer

Color red seems to be more prominant...than other


I've had this problem with my projection TV recently. I would say your lens/lamp is to blame. It might be time to change it, depends on the last time it was changed, most of the time, the TV will tell you that it needs to be changed, but not always. I think your best bet is the TV lamp.

Oct 20, 2009 | Hitachi Televison & Video

1 Answer

Just purchased tv and the quality of the picture is still fuzzy tried to mess around with the resolution but it still isnt very sharp at all


Hi,
The TVs produce picture using entirely different methods. Usually the colors and especially level of black color are better on plasma, LCD will have some trouble various shades of gray and black especially shading on peoples faces etc.. This is not a defect in the LCD just a limitation in current technology.

Apr 26, 2009 | Televison & Video

1 Answer

Screen is all Shades of Red....


You need to remove the front tv panel, search for the screws right behind the screen and speaker area on the sides of tv. Should be four of them, carefully remove the lower have/quarter and you will find a control box, 6 knobs. Try adjusting them to clear the problem, each color has its own knob, be sure to mark their original position befor adjusting. When you find the red adjustment knob, you should be able to turn it down enough so that it doesnt overpower the rest of the colors. Good luck.

Jan 28, 2009 | Televison & Video

1 Answer

Fuzzy/ distorted tv pic


Projection sets have two very common problems.

The first common problem is 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

Dec 22, 2008 | Toshiba 57H81 57" Rear Projection...

1 Answer

Mitsubishi DLP 62" WD-62725- Clear Picture w/ Purple Screen


Sounds like one of your colors are missing. make sure all colors are lit, Blue, Red, Green

Dec 27, 2007 | Mitsubishi WD-62725 62" Rear Projection...

1 Answer

TV took a dump


Sounds like a problem with the Hyper Board.

Dec 13, 2007 | Toshiba 65H81 65" Rear Projection...

1 Answer

White permanent lines on Mits 55


if you have had the pillar box on for a long time and now you are viewing wide screen format the crt's have had more or the phosphorus worn on the 4x3 portion of the crt's witch will give you a different shade where the pillars were the only cure is to replace the crt's

Oct 14, 2007 | Mitsubishi WS-55315 55" Rear Projection...

Not finding what you are looking for?
Televison & Video Logo

Related Topics:

49 people viewed this question

Ask a Question

Usually answered in minutes!

Top Hitachi Televison & Video Experts

The Knight
The Knight

Level 3 Expert

69955 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

matt martin
matt martin

Level 3 Expert

1198 Answers

Are you a Hitachi Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...