Question about Toshiba 50H72 50" Rear Projection Television

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Wavy picture My toshiba 50x72 tv's screen is distorted on startup then gets better in about 10 minutes but the screen still jumps some what might be the problem and is it cost effective to repair

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  • Greg H Jan 04, 2008

    Same problem with mine. I have concluded (after hooking up the cable box, DVD/VCR in every possible combination) that my problem is specific to the type of signal... DVD signal is the best, VCR is very poor-unwatchable, and certain cable channels are better than others.

  • J Xie Mar 08, 2008

    My Toshiba 50 in rear projection TV has the same problem for a few months now. I wonder what is going on with it.

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Toshiba has posted a service bullietten related to this problem. I done a few of these repairs at the shop. IT is 11 very small surface mounted capacitors. Very very difucult soldering. On what is called the HYPERMODULE. this is the main signal processing module. We charge 250 + the parts.

Posted on Mar 04, 2008

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Posted on Jan 02, 2017

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There are many types of distortion. Each with its own cause. Please describe the type of distortion. Are there vertical lines? Are the images wavy? Are they off-color? Are they blurry? A better description will yeild a better response.

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Distorted picture with wavy lines..


SOUNDS LIKE A CAPACITOR GOING DOWN ON BOARD OPEN BK LOOK FOR BULGING HEADS

Sep 28, 2017 | Sony Grand WEGA KF60WE610 60" Rear...

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Television


if you are using a cable box, tried to reset. then tried to unplug any connectors that has been hooked to the component input of your tv.

Oct 26, 2012 | Toshiba 50 Inch Big Screen Flat Tv Theater...

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My Toshiba 50H82 television takes about 30 minutes to clear up and during that process, it shakes.It becomes clear but still has wavy lines at the top of the screen which is about 6 inches.


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

Jan 10, 2010 | Toshiba 50H82 50" Rear Projection...

2 Answers

Toshiba 50H12 Rear Projection TV wavy screen


There is a Hyper Module mounted right behind the video inputs board. in most cases you can replace the 10uf surface mounts carefully not to tear the foil. and the set will return to normal. or replace the H/M board. this board is soldered 4 tabs on bottom of main board and then pulls out. good luck list of caps cz52(may not have this cap).. cx261 cx270 cx230 cx178 c514 cx221 cx250 cx241 cx541 cx670

Dec 11, 2007 | Televison & Video

1 Answer

Toshiba Rear Projection 42 "


http://www.digitalhome.ca/forum/showpost.php?p=564268&postcount=220
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Nov 23, 2007 | Toshiba 50H72 50" Rear Projection...

1 Answer

Wavy picture except when displaying a 1080p image


Elsewhere! Bad hyper board =bad caps on board need replacement = find a different tech who has heard of this repair or
have him research fixya / Toshiba/ 42H81 / hyper board ......T.

Oct 14, 2007 | Toshiba 42H81 42" Rear Projection...

1 Answer

Distorting


if it is wavy lines across the top it is probably the scan converter/ hyper bd they are becoming hard to find/expensive you can repair them but it requires many surface mounted capacitors and requires some VERY skilled soldering.

Apr 23, 2007 | Toshiba 57H82 57" Rear Projection...

1 Answer

Wavy Screen on Startup


I gather from your post that wavy can mean two possible things as the TV comes on, you see the picture flow like ocean waves? In this case you may have 60Hz hum modulating with the picture, this is actually unlikely these days, but I have heard it happens sometimes. The other thing it could be is light horizontal tearing. This happens when the horizontal frequency is too high or too low. You are not going to like my solution because I feel that for problems like this the set must be analyzed not just subjected to "shotgun troubleshooting", so here I go, Take the TV to a repair shop.

Feb 28, 2007 | Toshiba 50H72 50" Rear Projection...

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