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Hitachi 57" Rear Projection TV

 
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djayha1



Joined: 21 May 2010
Posts: 1
Location: Covingyon,Ga.

PostPosted: Fri May 21, 2010 8:19 pm    Post subject: Hitachi 57" Rear Projection TV Reply with quote

Model #57F500A
I thought it had the convergence problem, Ghost, Double images, color off, Ect. Well i replaced the STK IC's and a resistor, But that did not fix it. The color is still off , double images, But now it has a bowed image at top & bottom.... I tried to correct it with the auto (magic focus) and manually, after about 45 min.s of adjusting the color push the ini. change button and it goes blank for a few seconds and then the color grid pops back up all messed up again. Will not work at all (the changes) HELP! Confused
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Dan the Tv man
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PostPosted: Sat May 22, 2010 2:22 pm    Post subject: Hitachi projection Reply with quote

Check the power supply and convergence board for bulged top capacitors.If none are found resolder the entire convergence board.
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Crowell



Joined: 04 Jun 2010
Posts: 1

PostPosted: Fri Jun 04, 2010 11:15 pm    Post subject: Reply with quote

Hi djayha1.
Hmmm, by conversion board, do you mean the digital video board, because that’s the one in charge of converting all the analog signals to digital; so the 3LCD chip board can interpret them and create the picture on the screen trough the light engine. If I’m going too fast, then here is a post explaining about the 3LCD internal parts:
http://www.fixyourdlp.com/forum/viewtopic.php?f=4&t=1327
And here is another one that talks about the 3 colored chips.
http://www.fixyourdlp.com/forum/viewtopic.php?f=14&t=1279
In any case my first suggestion is that you check the digital board for any swollen capacitors, if nothing obvious.
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