Question about Toshiba 50H81 50" Rear Projection Television

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Lightning strikes on screen and takes awhile to warm up then fine

Hey hows it going im having a problem with my tv...the picture was scrambled in morning and taking awhile to warm up then fine,but it has little lightning bolts every now and then ,,,is this an easy fix??? I really like the tv,,,,and recently it is getting worse please help,,,B.

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Sorry its not an easy fix at all. im sorry wat you have to hear, but do you have kids? if so, they probably bumped into or hit the screen. that would result in permantly damaging the screen

Posted on Apr 01, 2009

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When you first turn it on, the picture is scrambled. takes fifteen to twenty minutes to warm up and get a good picture. Once and awhile after the picture warms up it will blink like the picture is going...


It seems that your unit has some sort of Thermal fault, either in the main circuitry or the Power Supply Unit, PSU. In all probability it WILL get worse and fail completely.
You need to take the unit to a reputable service centre/man and ask for a firm "Quote" for the work to be done.

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Lightning strike


press menu and input both in together on the front of the TV and hold them both in together for 8 seconds then let me know if the LED blinks a two digit code.

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1 Answer

LIGHTENING STRIKE


Ed,
Open the back and take a look at the saw tooth filter cap. It's the largest cap you'll encounter in the PS. Just follow the electrical cord onto the board and look for a VERY large electrolytic cap in that area. Usually they bow at the top on a strike like that. Replacing the cap might restore the unit.
If not do you have an esr meter?
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Apr 28, 2008 | Projection Televisions

1 Answer

TV picture scrambled and getting worse


This can be a fault in the tuner, IF, or primary part of the video processing. With age and use some of the parts, and especialy capacitors, in these sets can become thermo sensitive and unstable.

To service these types of faults can be very time consuming. On top of this would be the cost of the parts.

Considering the age and type of set that you have, I would suggest that it is time to be looking for a new set.


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1 Answer

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Picture appears to be trying to scramble


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1 Answer

Scrambling for first 15 mins


That is the exact problem I am currently having with my toshiba 50 in. I did some reading and it sounds like there is a temperature drift across one of the capacitors on the board and it takes longer and longer to warm up. Havent fixed it yet...

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1 Answer

Blue Tint


Most likely cause would be a loose solder connection that expands as the set warms up until it no longer makes a connection. You may get the blue to come and go by hitting the side of the cabinet after the set is warmed up awhile. (don't hurt your hand doing this, and don't keep doing it to "fix" the set. The connection will have to be located and repaired). Otherwise, there could be a component going bad, including the blue picture tube.

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