Question about Toshiba 50H72 50" Rear Projection Television

4 Answers

My Toshiba 50H72

I am seeing a second picture , kinda of like a shadow of the picture that is red in color. I have know idea what the problem is.....any idea what the problem is and is it easy to fix?

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  • didavis246 Aug 19, 2008

    Our Toshiba is doing the same thing. I was told it was a convergence problem and I need two new circuit boards, each costing about $41.00. Does any one know how to put them in?

    Thanks Diana

  • wallken Sep 06, 2008

    I have what appears to be a convergence problem. I tried using the convergence settings on the remote, but the range was not sufficient to bring it back into focus. Also, the lines are curved at the bottom. It happened all of a sudden when my 4 yr old pushed some buttons on the front. We can't figure out what he pushed, but the picture changed instantly.

  • joelanders Oct 21, 2008

    big screen toshiba has shadows and outlines figures wiht red and blue, tried the conveergences lines but only made it worse.

  • staceyili Jan 18, 2009

    Ok, I am new to this but I have a Toshiba 50h72 and only in the bottom left (if i am looking at it) there is a blue mess, the picture looks like it is floating. I tried fixing it with the convergence on the screen but it would not move. I hope that I am explaining this good enough, just a little help. I have already spent a fortune fixing this tv and would love to save some money. Thanks.

  • LRSuccess1 Feb 15, 2009

    Ghost images on screen

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I need to replace the convergence circuit board I'm having trouble finding the board. If you know were I can get one let me know @ bkdean003@yahoo.com

Posted on Oct 21, 2008

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Please let me know what you find out, because mine just started doing the same thing!!! I bought it in 2002, if this helps

Posted on Feb 02, 2008

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Http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Posted on Jan 14, 2008

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I am seeing a second picture as already mentioned. What can I do to fix this problem?

Posted on Nov 22, 2008

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1 Answer

Toshiba 50H72 have blue and yellow ghosts


Sounds like your convergence circuit went out. It lines up the red,green and blue picture tubes so the colors are lined up. Usually these TVs all use the same type of IC chips called "STKs" both usually get replaced along with any resistors etc.. around these chips that may have burned up. Depending on who fixes it could be around $300-400 parts and labor.

Rustym62

http://www.the-tv-dude.typepad.com

Apr 26, 2009 | Toshiba 50H72 50" Rear Projection...

1 Answer

5 year old RCA 50 inch projection tv. Picture went off.


If you are using component cables make sure they are all connected properly( pushed all the way in and in the correct input). I have seen the red cable come loose several times and cause no red color in the picture. When you change the lamp it is easy to pull on one of those cables and cause it to come loose.

Jan 30, 2009 | Toshiba 50H72 50" Rear Projection...

1 Answer

I have a toshiba model 50h72 double vishion


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

Nov 12, 2008 | Toshiba 50H72 50" Rear Projection...

1 Answer

I have problems with my Toshiba 50H72 image/ colors, like 3D.


you will need to replace the two convergence amp ICs they are STK392-110 you can get replacement ICs at the following link and they provide free instalation instructions with pictures.Here's the link.
http://servicemanuals.vstore.ca/

Jun 22, 2008 | Toshiba 50H72 50" Rear Projection...

1 Answer

Tv picture


Does the image appear to be 3D? Let me know as it sounds like convergence issues. Is there anyway you can post a picture of what the screen looks like?

May 17, 2008 | Toshiba 50H72 50" Rear Projection...

1 Answer

Picture gone.


You have bad conv. ic's.On these sets when the ic's go bad it will usually pop a fuse or burn up a few safety resistors,causing ith video to go away.

Mar 03, 2008 | Toshiba 50H72 50" Rear Projection...

1 Answer

Red?Green picture


You may have inadvertantly loosened a cable connection to the DMD or logic board... You might be able to shut it down, unplug the unit and remove the lamp.. With the lamp out take a good flashlight and shine it into the lamp housing area inside the Tv and see if you have any wire obstructions that you could have contacted with the edge of the housing as you were removing or inserting the lamp...
Bill

Dec 18, 2007 | Toshiba 50H72 50" Rear Projection...

1 Answer

Rear Projection Tv Problem! black and white... Please help


go into menu turn color off see if you have a black and white picture if not adjust red,green, and blue screen drive on controls in back of tv you have red, green, blue it will have focus /screen controls cover each tube do one at a time blue focus and screen drive adjust to clear blue picture do all 3 tubes, then adjust them to where you have a black&white picture once this is done turn color controll back on.Thank You for using FixYa and Have a Nice Day.

Nov 11, 2007 | Toshiba 50H72 50" Rear Projection...

1 Answer

Red convergence will only move up or down


Stk392-110 red convergence IC is bad...normal procedure===

1) pull chassis   2) replace both Stk's for reliable repair

3)re-assemble  4) re-align convergence

 

If you hire a technician, 400.00 is ave. price.

Oct 16, 2007 | Toshiba 50H72 50" Rear Projection...

1 Answer

Color is Bland--Seems we're missing red color


THE PROBLEM IS THE SAME AS I HAD PREVIOUS,A PROJECTOR BULB HAS GONE ON THE RED PROJECTOR,YOU PROBABLY HAVE YOUR SOLLUTION BY NOW I HOPE SO ANYWAY.

Feb 24, 2007 | Toshiba 50H72 50" Rear Projection...

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