Model #51F59A HITACHI Projection/Digital 42" and above TV

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Question and Answers

Q:

tv

A:

Television problems that keep recurring often are telling us worse its coming. The expert will review and respond, but if you do decide to have the television diagnosed and repaired by an experienced technician, the Sears Home Services link below can help.

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Barbara H. -
July 07, 2012
A:

The most common fix for these would be the signal board. For this type of repair the cost start about $400 and go up from there.

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Dusty J -
Sears Technician
July 09, 2012
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Q:

How do you install a screen assembly for a 51F59A Hitachi big screen?

A:

The screen assembly is connected to the back cover and both sit on top of the bottom box. The speaker grill is popped off then the top assembly is removed by taking out the screws that attach it to the bottom. From there you take out the 12 screws connecting the screen assembly to the back cover. Remember that the magic focus sensors are connected to the screen itself to read the deflection of each color and needs to be disconnected. The harness that holds it will be on the screen assembly itself. At this point you should be able to dismantle the screen assembly by taking out the screws for the screen holders and slide out the screen assembly. The fresnal goes on the inside the lenticular on the outside. There will be a marking or a sticker that tells you which end is up. Be cautious to work in a clean environment, anything foreign really shows up because of the way it affects the light passing through the screen.

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David A. - Personal Solutions Manager -
Sears Technician
November 17, 2009
Q:

Why does my Hitachi have horizontal lines across the bottom?

A:

I suspect they are light colored, jittering up and down in the general area. They may have been intermittent at first and now showing up more frequently. The problem I am describing is a loose grounding on a heatsink on the vertical circuit. The part is available separate from the whole deflection board but I would strongly suggest letting a technician handle the replacement.

Since I cannot troubleshoot the TV hands on we need to consider what else it could be. If the TV is creating this, it would affect the menu as well. Hit the volume button on the TV, not the cable box or satellite or whatever you are using. Hopefully it is in that area and you can see if it affects the graphic for the volume bar.

If affected we know that is not the video signal coming in. Remove everything hooked up to the TV and see if you still see it. Although you eliminated video the hardware can still cause noise. Try to isolate them by connecting back one at a time.

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David A. - Personal Solutions Manager -
Sears Technician

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