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Question about Toshiba 55H70 55" Rear Projection Television

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Black at bottom of screen then disapears when warmed up

I have a 55" toshiba and the screen has black throughout the bottom when turned on. It takes about a half hour to get full screen to work.

Posted by mike swerd on

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  • dumptruck00 Dec 11, 2007

    i have a toshiba projection tv. the bottom 4 inchs are black.it use to go back normal after being on for a while now it stays the same

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  • 19 Answers

On some model Toshiba Tvs have 2 small red Electrolitic capacitor on maim board, one dose capacitor are close of the big IC and the othe is around of the regulator circuit. I'm sorry I don't have now the lokation numbers for those capacitor, but these capacitor are red color making easy to find then. Tri.

Posted on Jul 06, 2007

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A 55" toshiba tv 5 yrs old and every day ,voice goes "staticky" we turn it off then on .we have a black line across the bottom of the set 3" and what appears every 4 or 5 inches is a shadow screen.
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Picture disapears after few minutes
I think the electronics inside it have failed. My guess is that because its the picture only, it will fail in the same way if you play dvd into it for the same amount of time. The failure happens after it has warmed up, if you take it out into the cold you may get 1 minute more before it fails.
It needs replacing, its not cost effective to repair something like this, the failed parts may have partially damaged other parts in the unit so they could fail after a repair.
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Dec 19, 2013 • Televison & Video
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I HAVE 60 ' INCH FATBACK WHILE THE TV TURNS ON THE SCREEN THAT TELLS YOU , SETTINGS , STAYS ON UNTIL IT WARMS UP ....YOU GO TO YOUR REMOTE AND HIT MENU , IT DISAPEARS....BUT ONLY WHILE ITS WARM .
Got a heat related issue likely on main signal board---might be able to localize it (suspect a flat pack chip) with a hair dryer to heat the board just a bit.
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Nov 05, 2012 • Televison & Video
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When I first turn on the Toshiba projection tv the color has a strong red hue to it which clears up gradually
I would suggest when turning set on cold---turn color all the way off and examine screen as set warms up---if red to some degree but gradually becomes black and white the issue is either a "touchy" red screen control on the screen/focus block or a problem on the circuit board plugged to the bottom of the red tube.

I guess the real question is how long until it is normal?
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Back box on bottom 1/2 of screen happened a year ago. Can' remember what to do. Help I have big Toshiba CZ32V51 with universal removte Phillips
Can u get into ur tv menu with the universal remote?If u can't tries it with the tv manual buttons look at on the botton of ur tv have manual button said menu.Press it go into the tv menu.Look inside the tv menu for functions like Close Caption like CC1,2,3 and Text 1,2,3 make sure all CC1,2,3 and Text 1,2,3 turn it to all off.Black square box will disapear.Can't do it in the tv manual button etheir.Try website like Remote.com to buy the tv origial remote to close Close Captioning and Text 1,2,3 to all off.
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Every time I turn on this TV it get these vertical lines from right to left across the picture, then after a few minutes they disapear and the picture is beautiful...is this worh fixing
Hi if your tv is lcd or dlp its an issue with the light engine.God bless you!
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Oct 01, 2009 • Toshiba TP55H60 55" Rear Projection...
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I have a oblong black box lower apart of tv screen, it disapears when i go to menu and changing channels about to or three seconds later the black box returns.
sounds like the closed caption is set to text mode . try turning off or setting the CC to off or CC1
hope this fixes it
Eric

I’m happy to help further over the phone at https://www.6ya.com/expert/eric_ab7c09ec01841771

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May 05, 2008 • Toshiba 55H70 55" Rear Projection...
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Having a problem getting a picture
Im sorry to tell you this but it sounds like someone turned on the text feature on the closed caption? Go into the menu function, with the remote, and turn off the closed caption.
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55H70 55" Rear Projection Television

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A 55" toshiba tv 5 yrs old and every day ,voice goes "staticky" we turn it off then on .we have a black line across the bottom of the set 3" and what appears every 4 or 5 inches is a shadow screen.

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