Question about Hitachi 65S500 65" HDTV-Ready Rear Projection Television

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My Hitachi 65SWX20B Model, made in 02, just developed Picture disturbance

Specifically, it is a thin blue line that goes across the length of the screen just above the half-way point of the screen. There is another blue line that is a perfect arc above this straight line(about 14 inches above the central blue line at the far left, 10 inches above straight blue line in the middle and another 14 " above the straight blue line on the right.) This forms a faded blue color distortion between these two lines. It's almost like an overlay of blue on top of the picture. The tv picture is not affected with any other visible distortion. I tried the magic system fix, but had no effect. The tv wasn't bumped into or disturbed in any way. Any suggestions?? Thanks in advance!

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Re: My Hitachi 65SWX20B Model, made in 02, just developed...

Can you post a picture of the set. This might be a convergence problem. seeing the set will confirm this.

Thank you,

Posted on Oct 28, 2007

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Projection sets have two very common problems.

The first common problem is convergence

These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. This is called convergence.

When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired. Convergence problems are very common on all Projection TV sets including Sony, Samsung,JVC,Philip Magnavox,Panasonic,Akai,Pioneer, Hitachi,Mitsubishi,Zenith and others.
You can get more information and a DIY convergenece repair kit with instructions from the link below.

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Problem #2 - Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

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bb0cf99.pngYou can see some more examples and find a fix using this link on Fixya

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Hitachi 65SWX20B 65 in. Rear... Problem

Your TV most likely has one or more possible problems.

Problem #1: Convergence Chip Failure ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem
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Here is a quick test....

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

Try to adjust the red and then the blue 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.

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site They have put together a kits for most models. If you don't see a kit for your set send them a quick note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, etc.

Problem #2 CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

TV set after fluid change


2c07611.pngSolution #2

What you will need to do is replace the coolant and clean the crt. You can get a repair kit from that includes replacement coolant, photos. instructions, etc.

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