Question about Hitachi 50GX30B 50". Rear Projection Television
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: projection TV red is drooping
Do an internet search on "Hitachi Convergence Circuit". This apparently happens all the time. TV repairmen charge about $400. Parts are less than $50 but you would have to be an expert at soldering electronics circuits to replace it yourself.
My TV had the Blue misalign instead of the Red. I ordered the kit #9 from http://www.bdent.com/search/part.jsp?partnum=KIT9
DO NOT ATTEMPT IF YOU DO NOT KNOW HOW TO SOLDER. YOU WILL PROBABLY RUIN YOUR TV.
Posted on Sep 15, 2008
There are two common problems with these sets.
Problem #1) Convergence
You can see some examples and find a fix here...
Posted on Oct 31, 2009
Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.
This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.
Common Symptoms include....
Here is a quick test....
Using your original remote go-to the settings menu then goto the convergence section.
Try to adjust the red and then the blue convergence.
You should be able to move RED and BLUE in all directions - up, down, left, and right. And you should be able to get the grid straight.
If you can't move them in all directions or cant move them far enough your convergence chips are bad and should be replaced. This is a common problem.
Note: If you TV has as flash focus or magic focus button only try pressing the button. If it fails to fix the convergence your need to fix it. See below for a fix
You can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull
Posted on Aug 14, 2010
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