Question about Hitachi 53FDX20B 53" Rear Projection Television

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IMAGES ARE OVERLAID AND NOT IN FOCUS

IMAGES APPEAR WITH A HALO EFFECT. MAINLY SURROUNDED BY RED. THE MAGIC FOCUS FEATURE STARTS TO WORK, BUT WHEN IT GETS TO RED IT STOPS AT TWO BARS

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  • Hlo4mdo Jun 04, 2008

    I am having the exact same problem. Do I need the origianl remote for any of this process.



    Will it be easier to have a repair man come to fix?



    Thanks

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Sounds like you are having a convergence fail. there are 2 Convergence amps in the tv should be on the largest heat-sink inside(right hand side looking from back) replace with stk392-110 and any open or burnt resistors. check for any cracked solder and mark any cables you unplug. if you do that work and need to align the convergence at all let me know and ill walk you through those steps

Posted on Feb 22, 2008

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1 Answer

My mitsubishi 65' tv starting to show a red halo around images. what to do


Sounds like the convergence circuit is failing. You can try pressing the "magic focus or perfect focus" button to see if it clears up. If not the circuit is bad and needs repair. They have repair kits on this website. tvrepairkits.com if you want to try repairing it. otherwise it can cost $300-$400 to have somone else repair it.

Sep 11, 2010 | Mitsubishi WS-65311 65" Rear Projection...

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Red convergance appears tp be off, seeing ghost images shifted left


Try adjusting the convergence. If it won't move see below- (or hitting Magic Focus for some Hitachi’s)

This sounds like convergence output IC problem. convergence board would have to be removed - remove and replace 2 STK IC's and check the surrounding resistors. Shops usually $200-$400 Be sure to vote/rate me if this helped Thanks!
See link for more detail
http://www.ehow.com/how_4575598_yourself-projection-tv-repair-convergence.html

Nov 24, 2009 | Televison & Video

1 Answer

Screen was pushed in, takin covering/surround off and fixed screen, replaced covering/surround but colour not right, can see rainbow effect on pitcure. is there a certain way screen must go to transform...


If this tv has a feature called magic focus or perfect focus which is a button inside door that flips down on the front, then it has sensors on the inside of the screen. When it was pushed in, these were probably messed up and will cause a poor picture. It may be difficult to get those realigned. Magic focus will not work right until they are realigned.

Oct 23, 2009 | Toshiba 42H81 42" Rear Projection...

1 Answer

Picture is out of focus. Tried Magic focus - didn't work. Saw color grid; appears blue is out of whack.


There are two common problems with these sets.

Problem #1) Convergence

Symptoms:
  • Screen Looks 3D
  • Colors wont align
  • Video may look distorted
Problem #2 CRT Fluid has clouded over. Symtoms
  • Dull looking video
  • White looking video
  • Halos around objects
  • Red/Orange looking video

You can see some examples and find a fix here...

bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Oct 18, 2009 | Hitachi 57SWX20B 57" Rear Projection...

1 Answer

Words are doubled red borders???


Just to clarify, it sounds like what you are saying is that the image appears to duplicate in either red or blue along the edges of the image (especially white lettering and probably increasing along the boarder of the TV). This is resolved by converging your TV. Convergence will drift normally on large screen projection TV's over time or through moving them. The Hitachi 57f500a has a feature called "Magic Focus" (pg 36 in your manual) which will auto converge the image. If the auto converge feature doesn't work, on page 37 in your manual, it explains how to converge manually. If you do not have the manual, I have the image of the pages below. If for some reason this doesn't work, please provide additional info and detailed prior to rating the help.

Apr 20, 2009 | Hitachi 57F500 57" Rear Projection...

1 Answer

We are getting ghost images and the color is not correct


I have red concave lines going across the screen, plus wording appears double like a ghosting effect, this is ongoing from the time the tv is turned on until it is turned off. This started 3 days ago. Is it time for a new tv, its 9 or 10 yrs old now.

Mar 29, 2009 | Hitachi 43UWX10B 43" Rear Projection...

1 Answer

We have a convergence problem that Magic Focus won't fix. Our screen has a 3D effect and there are red bows on the screen. Is there a manual convergence setting somewhere for us to try since the magic...


Projection TV sets are known to have two common problems. The first problem that is common to these sets is convergence failure. When this happens the TV will usually look 3D, Wavy/Distorted, etc. It may also shutdown and blink an error code.

The second common problem with Projection TV sets is dull video, halos around objects, white looking video, or red overpowers the screen. This is commonly caused by the fluid in the lens being clouded overs.


You can find more details and solutions here on Fixya at the following link below. Or click HERE


3d884ac.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Mar 04, 2009 | Hitachi 50UX57B 50" Rear Projection...

1 Answer

IMAGES ARE OVERLAID AND NOT IN FOCUS


Here is the schematic diagram. Download all the 13 parts and unzip them using winrar.
The parts you need are listed on page # 50 of the schematic diagram.
You will find the ICs HERE.
Make sure you check the fuses and micro/pico fuse nearby the ICs, as well some crystallized solder joints.
Good Luck.

Mar 16, 2008 | Televison & Video

1 Answer

Double image 6 yr old unit


Have you let set warm and then tried Magic Focus? Maybe after 15min.

Nov 25, 2007 | Hitachi 61UWX10B 61" Rear Projection...

1 Answer

Hitachi rear projection


without knowing the model number, i can only give you some ideas on what to check.

If the tv was working fine, and started experiencing the problem after being moved, check your focus. you may or may not have an electronic focus pot on the rear of the tv, and you should have a manual focus located on the lens assembly, loosen the wingnut and rotate the lens to focus it.

also check the crt coolant level, if it has a bubble in it, it may be causing the red halo effect.

if the red is to the top or side of the characters and not completely surrounding them, it may be a convergence issue, check the manual for convergence procedures, if it does not have them, your best bet would be to take it to a service tech.

Nov 15, 2007 | Televison & Video

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