Question about Mitsubishi WT-42311 42" Rear Projection Television

5 Answers

Toshiba picture I have adjusted convergence but still picture is blured. What can be done to get clear picture. Triprenu

Posted by Anonymous on

  • 2 more comments 
  • Anonymous Aug 16, 2008

    I have tried all the tricks through the remote, finally have opened the tv and adjusted the focus with the help of service manuel but still picture is blured.

  • Anonymous Aug 16, 2008

    Hi there,
    would you be able to suggest the probable capacitors or ICs to look for. There are many, but wich to look more carefully.

  • Anonymous Aug 16, 2008

    Toshiba 51WH36P, Picture is continuasly vibrating and blured. which capacitor I do need to check. your help is highly appreciated.

  • Anonymous Aug 17, 2008

    Thanks guys for your advices, unfortunately nothing worked and finaly TV has stoped forever.

×

Ad

5 Answers

Anonymous

  • 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
  • 1,665 Answers

Check if there is any lamp vibration.

Posted on Aug 17, 2008

Ad

Mark Gil

  • 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
  • 6,487 Answers

Try checking this is from the link posted by Voodoomox it has the step to solve your concern..

We had to re-solder the circuit board that contains the STK392-570 convergence modules. They're on the center circuit board attached to an aluminum heat sink that's about 8" long and 6" tall, about dead center in the circuit board. All we really needed for equipment was some liquid flux, solder, cleaner, heat sink paste (to correctly bond the modules to the heat sink), solder pen & a phillips screwdriver.
We were able to recreate the problem (hour glass effect) by gently moving the heat sink (which the modules are connected to). This would give us the hour glass effect on the picture and the advanced convergence screen. This was an indication that the modules pins weren't solidly connected (meaning soldered) properly. We removed the circuit board and the solder job was indeed weak. We cleaned the old solder off & resoldered the modules pins to the circuit board reconnected the board and then retested by again pushing on the heat sink. No distortion. We pushed harder than the original test but couldn't cause the hour glass effect.
This is a case of a minimum effort (a.k.a. minimum cost) solder job, probably done in some 3rd world sweat shop. The "factory" job was good enough for 3-4 years but the heat (and these modules do create a lot of heat) and stress created from repeated use eventually takes it's toll, weakens the pin connections and our problem occurs.
We took the appropriate cautions working around the high voltage of the set & used a non-conduting piece of wood to push the heat sink when we did our tests. Overall, this wasn't too difficult of a job but I wouldn't undertake this if you have little or no experience working w/ electronics & particularly circuit boards

Hope that helps..........

Posted on Aug 16, 2008

  • Mark Gil
    Mark Gil Aug 17, 2008

    Sorry for that , I think its time for you to get a new television now..

×

Ad

marlon john madrid

  • 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
  • 1,689 Answers

Please check on the links below, if your tv displays blurred characters as much as the picture below.

Toshiba picture - db94fab.jpg
here is the link:

http://forum.ecoustics.com/bbs/messages/2/278833.html

it says...

re-solder the circuit board that contains the STK392-570 convergence modules. They're on the center circuit board attached to an aluminum heat sink that's about 8" long and 6" tall, about dead center in the circuit board. All we really needed for equipment was some liquid flux, solder, cleaner, heat sink paste (to correctly bond the modules to the heat sink), solder pen & a phillips screwdriver. We were able to recreate the problem (hour glass effect) by gently moving the heat sink (which the modules are connected to). This would give us the hour glass effect on the picture and the advanced convergence screen. This was an indication that the modules pins weren't solidly connected (meaning soldered) properly. We removed the circuit board and the solder job was indeed weak. We cleaned the old solder off & resoldered the modules pins to the circuit board reconnected the board and then retested by again pushing on the heat sink. No distortion. We pushed harder than the original test but couldn't cause the hour glass effect. This is a case of a minimum effort (a.k.a. minimum cost) solder job, probably done in some 3rd world sweat shop. The "factory" job was good enough for 3-4 years but the heat (and these modules do create a lot of heat) and stress created from repeated use eventually takes it's toll, weakens the pin connections and our problem occurs. We took the appropriate cautions working around the high voltage of the set & used a non-conduting piece of wood to push the heat sink when we did our tests. Overall, this wasn't too difficult of a job but I wouldn't undertake this if you have little or no experience working w/ electronics & particularly circuit boards.

the pictures in the link will gice you an idea on what part you will need to check on specifically the capacitors

hope this helps, best of luck to you.

Posted on Aug 16, 2008

  • marlon john madrid
    marlon john madrid Aug 17, 2008

    well if that is the case then best bid is to get the tv to a repair shop to get it fixed, my apologies to what happened to the unit, hope you get it running though.

×

Anonymous

  • 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.

    Master:

    An expert who has achieved Level 3.

  • Master
  • 623 Answers

Clean the screen,go to this website for instructions
http://www.techlore.com/article/10066/How-to-Clean-Your-TV-Screen/

Posted on Aug 16, 2008

  • Anonymous Aug 16, 2008

    use a multimeter to check all,or just call a tech that's just a suggestion

×

Michael Galve

  • 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
  • 1,269 Answers

Using the remote try to adjust the brightness on the TV Menu

Posted on Aug 16, 2008

  • Michael Galve
    Michael Galve Aug 16, 2008

    You can see the instructions on the manual that came with it. If you don't have the manual, you can get it here

    http://www.user-manuals.com/shopping_car...


×

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Not a clear picture


CRT projection televisions need periodic maintenance to maintain a clear picture. Typically, to maintain a sharp picture, they require cleaning and alignment every two or three years. If the television is being used in an environment where there is cigarette smoke or other smoke sources, the optics inside the television can become dirty and cause the picture to blur. Additionally, CRT focus and alignment wander over time, or physical CRT alignment can be knocked out if the set is bumped or dropped. All RCA CRT projection televisions have an "alignment" or "convergence" adjustment in their adjustment menus, which are fairly simple to use. The convergence feature is usually accessible from the main menu of the television. Check your User's Manual for the procedure to touch-up the convergence adjustment and see if you are able to achieve a sharper picture. If the optics in your set have not been cleaned for several years, or if it is in a smoky environment, the picture will be blurry and usually a brownish color, In any case, since the set is several years old at this point, it's likely due for a cleaning. This is best done by a technician, and mostly involves physical cleaning of internal lenses, the refractor mirror on the back of the chassis, and the back of the opaque display screen. An adjustment of CRT bias controls and individual CRT focus adjustments will bring further improvement in the image sharpness and clarity.

Jul 08, 2011 | RCA Televison & Video

1 Answer

Bluring of colors


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...

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 - 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

Apr 09, 2010 | Philips 55PW9363 55" Rear Projection...

2 Answers

Screen bows in and picture has double images color around images id weird you can see the picture but everything is blured


I fixed mine by cleaning the projection lenses by removing the speaker cover, then removing the button peice.
There are 2 screws on the back on both sides and I think 3 in the front that need to come out. They are an allen key type 7/64". The button peice should pull forward and drop down.
Now you should be able to see the projectors. I used q-tips and alcohol to clean the dustr off of them. (I went over them with the power on so i could see if there was any streaking.)
After the lenses have been cleaned you should go to the auto convergence function in the setup menu.
You should have an awesome picture! Enjoy.

Mar 07, 2010 | RCA D52W20 52" Rear Projection HDTV-Ready...

1 Answer

Model vs5047 picture is not crystal clear anymore, any adjustments


TV is getting older probably ten or more, open the tv and clean the CRTs, do the convergence adjustment,any further adjustments should be done by a TV shop (focus,CRT level)

Jan 11, 2010 | Mitsubishi Televison & Video

2 Answers

Cannot get the set to focus. Colors are blured


Sounds like a convergence misalignment, go into the tv menu and look for other adjustments sub menu and follow the on screen directions,this is a simple procedure but will take a little time to get it adjusted just right. Directions are also on pages 20 and 21 in your owners manual. Good luck!

Nov 26, 2009 | Panasonic PT-47WX49 47" Rear Projection...

1 Answer

Changed ic's need to reset picture every time i try keeps saing over load


If the convergence adjusts ok in the customer mode do not worry about the "overload" it only has to do with the Magic focus feature---

There is a way to overcome that but It is tricky and one wrong move and you have real problems--it involves DECAM--de-converging and clearing the set's memory of the convergence adjustments--It means the convergence has to be adjusted from scratch--I have seen this done by an expert and I have done it but no one not totally familiar with the process should attempt it.

You know there is a Tech Menu for fine adjustment of the convergence?

That is not hard to access but I have a Hitachi book that tells which buttons on the Hitachi remote do what in this mode---The remote will have on the face of it a CLU number--tells which remote it is.

If the convergence adjusts do not worry about the Magic focus--it only adjusts the convergence at about 16 places on the screen---in the Tech menu you adjust at over 60 places--much better way to go.

Get me the Clu number on your remote and I can scan the page from Hitachi---we will need to find a way for me to get it to you...............


If this helped you, rate this solution as I do this here for FREE.

SD TECH

Nov 13, 2009 | Hitachi 53SDX20B 53" Rear Projection...

2 Answers

Picture is multi color, double shadows, curved


This is failure of convergence out ICs in TV. Qualified TV tech will replace convergence out ICs or board.

Feb 14, 2009 | Philips Televison & Video

1 Answer

The BLUE crosshair will not focus,


go here
this is for sony but your should be close enough. you want to manually focus the blue gun.
please mark post fixya!

Feb 11, 2008 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

Bluring at the top section of the TV


http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
Sony Convergence
http://www.techlore.com/blog/entry/19694/Sony-Convergence-Repair-My-Sony-TV-has-a-distorted-picture-/
http://www.techlore.com/article/19631/Sony-Convergence-Procedure/

Nov 11, 2007 | JVC AV-56WP30 56" Rear Projection...

2 Answers

NO PICTURE


your tv most likely has a bad vertical chip or cold solder on this chip. Another thing is that the connections on the vertical yoke connectors are broken and need to be resoldered....John

Sep 18, 2007 | Mitsubishi VS-4543 45" TV

Not finding what you are looking for?
Mitsubishi WT-42311 42" Rear Projection Television Logo

86 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mitsubishi Televison & Video Experts

matt martin
matt martin

Level 3 Expert

1258 Answers

The Knight
The Knight

Level 3 Expert

76376 Answers

Ekse

Level 3 Expert

13434 Answers

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

Answer questions

Manuals & User Guides

Loading...