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.

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  • dumptruck00 Dec 11, 2007

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



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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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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.

Dec 19, 2013 | Televison & Video

1 Answer


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.

Nov 05, 2012 | Televison & Video

1 Answer

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?

May 20, 2012 | Toshiba Televison & Video

1 Answer

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 to buy the tv origial remote to close Close Captioning and Text 1,2,3 to all off.

Apr 15, 2011 | Toshiba CZ32V51 32" TV

1 Answer

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

Aug 29, 2009 | Toshiba MW24FM1 24 in. TV/VCR/DVD Combo

2 Answers

Toshiba theaterview HD 52" has black box on screen

sound like to me caption 1 is turn on .. try going into settings menu and shutting off close caption...

May 05, 2008 | Toshiba 55H70 55" Rear Projection...

2 Answers

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.

Sep 23, 2006 | Toshiba TP-55H64 55 in. Rear Projection...

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