Question about Toshiba 55H70 55" Rear Projection Television

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Pic distorted slightly on left side. news (crawl) on bottom of screen angles down on left side, top of pic seems to angle up also. very minor problem but annoying anyway! pic clarity & color excellent.

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Convergence amp ic bad
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/

Posted on Jan 29, 2008

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Repaired the convergence and now the image quality is good but the TV seems to be over projecting the screen. The top, bottom and sides of the image are cut off slightly. is there a way to adjust?


Hey! its me again. I think what your experiencing is called overscan. This website might help but if not just google how to fix overscan on a projection tv.
http://www.cnet.com/news/overscan-youre-not-seeing-the-whole-picture-on-your-tv/

May 24, 2016 | Projection Televisions

1 Answer

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You have a dying projector lamp. Have it replaced and the picture quality will be good as new.

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1 Answer

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You have a problem within the light engine. This a hugely expensive. If the set is not too old you could contact Sony and see if they will help you out. Otherwise it is not eceonomical to repair

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1 Answer

LG rear projection


Hi, I used to work in Best Buy and one of the key things about rear projection TVs and the reason they push those service plans on you is that the tubes/colors need to be calibrated each year. You can do this yourself by checking out the following website:  

http://lgknowledgebase.com/kb/index.php?View=entry&EntryID=3229 

If you are not able to adjust the convergence using the remote you will need to replace the convergence chips. 

Typical Symptoms

1) Convergence menu does not work for one or more colors.  
Such as: Red moves up,down, but left or right fails. 

2) Screen is bowed looking.

If you have one or more of the problems above you need to replace the convergence chips. You can get a kit and instructions from www.TvRepairKits.com  

Hope this helps :) 

Jul 30, 2008 | LG RU-44SZ51D 44" Rear Projection...

1 Answer

Lg 37 inch lcd has a dark shadow vertical line down left side of screen about 1cm wide and does not seem to go right to the top or bottom and is slightly wavey


reseat the LVDS cable inside the set. this is the multi wired connector that connects the main board to the panel. if that doesn;t solve your problem replace the main board. if you turn off the set and you can still see it in the screen it is the panel.

Feb 14, 2008 | Projection Televisions

2 Answers

Hl-44266w screen allignment


Don't recommend replacing the light tunnel if you never had any experience with DLP optical systems. you need to pay careful attention to the way you remove any screws or you will be forced disassembling the engine multiple time to get the alignment correctly.

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1 Answer

Mitsubishi VS-60111 picture distorted


how do I manually switch my t.v. from 480i to 1080i on dtv with remote.

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1 Answer

Screen is distorted on the top and bottom


Loose connection on convergence board, you could tapp and should go back to normal, find loose conn. and solder back.

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