Question about Sony KP-51HW40 51" Rear Projection Television

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Green hue My tv has a green hue espiecally when theres black in picture.

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Re: Green hue

GO to service mode ,On std by mode press diplay-5-volume plus-power button on remote con.
reduce green drive to balance .For good adjustment you need white picutre .Also reduce brightness to noticeble lavel.

Posted on Dec 14, 2007

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Green hue

Unplug the TV from the wall and plug it back after 45-60s should fix the problem. However, it will come back from time to time so the same procedure will reset the video board. You'd want to upgrade the firmware on the ATSC tuner as well because old firmware was built before the final standard and when the TV goes digital in June 2009, it wreak havoc on all older HD TV. Go to hitachi website and download new FW for your TV. Copy the FW to an SD card and follow procedure from Hitachi to upgrade. It works wonder for my TV after the upgrade.

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1 Answer

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1)Please verify your model # from back of set......

2)Reduce the color to minimum or tune in a black & white chan.
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3)Remove lower front grill cover & access panel.....locate the
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2 Answers

I am told my Hitachi 61SDX01B (UltraVision/Ultrascan) has "Green Geometry"

Sounds like a convergence promblem.

Here are some of the most common symptoms of a convergence problem.

Screen looks 3D
One or more colors can't be adjusted when using the convergence menu.
Screen is bowed in or warped.

Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence or magic focus section.

Try to adjust the convergence.

You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.

Its a fairly easy fix on the Hitachi sets.

You can get a repair kit that includes all the parts from The kit includes a photo instruction guide, original Sanyo STK chips, convergence resistors, etc.
Everything you need to fix it yourself.

Oct 15, 2007 | Hitachi 61SDX01B 61" Rear Projection...

1 Answer

Hitachi 61SDX01B

The problem is called green geometry.There is nothing wrong w/the green pix tube.It is critical to get the green geometry

accurate because the red and blue convergence overlays on

the green.If you have more than an alignment issue,that will need

repair before adjustments are attempted.

Oct 15, 2007 | Hitachi 61SDX01B 61" Rear Projection...

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