Question about Toshiba 57H81 57" Rear Projection Television

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Horizontal lines on toshiba 57H84 television until warms up

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Set will have a "HYPER" BOARD causing this issue----there was a service bulletin with a photo of the board with 10 surface mounted filter caps that dry out and need to be replaced.

The failing caps tend to begin to regain capacitance when hot---gradually the wait gets longer and longer.

Board no longer available from Toshiba so 3 choices: replace the caps yourself (tricky and not easy) or have it sent for rebuilt to PTS electronics (about 200) or go shopping for a new set and retire this one.

Posted on Nov 01, 2012

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SOURCE: Toshiba 57H84 with CT-90233 Universal Remote Control

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Posted on Sep 15, 2009

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SOURCE: My five year old Toshiba 57H84 rear projection TV

Hi,Yes your problem sounds like the DMD board.This is how it works: http://electronics.howstuffworks.com/dlp1.htm Basically the light of the lamp goes through a tunnel that carries a color wheel(rotating disc with a gamma of colors that creates the colors on your tv)then the light of the lamp goes through the DMD board which is a chip composed of around 2 million pixels that creates the images and colors.When it starts to fail it will create black bars,pixelation,color distortion or white dots on screens. Here's a video that will help you find where the DMd chip is located : http://www.youtube.com/watch?v=0jr_9A5Xd2Q Have a blessed one!

Posted on Apr 30, 2010

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My Toshiba HD tv Model 57H84 has vertical lines on screen it's worse when first turned on but clears up some after warm up but not completely. What causes this and how can I repair problem?


Bad connection on one of the boards . More than likely t-con board , if not that then may be moisture on the main board around the chip , processor . Give it a wipe

Nov 16, 2012 | Televison & Video

1 Answer

I have a 57H84 toshiba I bought new in 2004 I have lines from top to bottom approx 1 in apart.I have been told that is the bulbs that need to be cleaned .Can you tell me how to get in to the bulbs and...


57h84 IS A REAR PROJECTION SET WITH 3 picture tubes.

you got lines in picture top to bottom on the screen running left to right?

They go away after a while?

Apr 26, 2012 | Toshiba Televison & Video

1 Answer

My five year old Toshiba 57H84 rear projection TV has a pink tinted screen when you first turn it on, then after it warms up, the colors are all fine but then the picture has evenly spaced blue tinted...


Hi,Yes your problem sounds like the DMD board.This is how it works: http://electronics.howstuffworks.com/dlp1.htm Basically the light of the lamp goes through a tunnel that carries a color wheel(rotating disc with a gamma of colors that creates the colors on your tv)then the light of the lamp goes through the DMD board which is a chip composed of around 2 million pixels that creates the images and colors.When it starts to fail it will create black bars,pixelation,color distortion or white dots on screens. Here's a video that will help you find where the DMd chip is located : http://www.youtube.com/watch?v=0jr_9A5Xd2Q Have a blessed one!

Apr 30, 2010 | Toshiba 57H84 57" Rear Projection...

1 Answer

Flashing Power light


Ur power board ic inverter is dead.
U need a new board.

Aug 19, 2009 | Toshiba 57H84 57" Rear Projection...

1 Answer

SERVICE MANAUL FOR A 57H84 toshiba


Hi

Click on the following link: Click Here

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Kind regards
BearWeb

Apr 12, 2009 | Toshiba 57H84 57" Rear Projection...

1 Answer

LENS


TURN THE SCREEN VOLTAGE DOWN FOR THE RED TUBE ON THE FOCUS BLOCK, THAT SHOULD BE IN THE FRONT BEHIND THE GRILL, TURN COUNTER CLOCKWISE.

Nov 05, 2008 | Toshiba 57H84 57" Rear Projection...

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