Question about Hitachi 43FWX20B 43" Rear Projection Television

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Who do you perform manual convergence - Hitachi 43FWX20B 43" Rear Projection Television

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  • b442john Apr 25, 2010

    thank you I will give it a try

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Hi,

SET UP
45
SETUP
Your HITACHI Projection TV has three color projection tubes: one for red, one for green, one for blue. When mixed together in the
proper proportion, the output of these three color tubes can produce any color. To produce these colors, however, the beams must be
precisely aligned over each other so that the colors can be mixed. The process of aligning these picture beams is called òconvergenceó.
Over a period of time, the picture tubes can drift out of alignment due to normal bumps and vibrations or moving the TV. If you move
your TV, or if, after a time, you notice color rings or halos around objects in the picture, you may want to converge (align) the colors.
Properly converged, the lines appear white, which is actually a combination of the outputs of the three color tubes. The output of the
green tube is stationary. The outputs of the red and blue tubes can be adjusted. When properly aligned, the outputs of all three tubes
should be directly over each other to produce the white lines.
To simplify convergence, HITACHI incorporates a function called MAGIC FOCUS located on the front control panel, which allows the
TV to self-adjust. Press this MAGIC FOCUS button and the convergence self adjustment willl start and this process will take
approximately 15 seconds. If this button is pressed during this process, no change in picture quality will occur. After this 15 second
self-adjust period, picture quality will be optimum. (Do not move the TV during self-adjust.)
You may also select MAGIC FOCUS from the SETUP Menu.
NOTES: Only a momentary press of the MAGIC FOCUS button is necessary to start AUTO DIGITAL CONVERGENCE. At
anytime during this convergence correction process, you may press the MAGIC FOCUS button to exit the MAGIC
FOCUS mode.

Let me know, if needed further assistance.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Posted on Apr 25, 2010

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Posted on Jan 02, 2017

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LG protection tv model no RT 62NA31RP convergence problem i have replaced stk 392-570


You will have to check its manual. every model has its own function. if you need the manual, let me know it.



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Devices: All projection TV's (HD or analog), especially Samsung

If its a Samsung HCN653W (or similar model), the first thing to try is the menu option named "Magic Focus", which tunes the set's focus.

Otherwise, it sounds like a job for a convergence. Perform a convergence procedure on your TV, and if the problem recurs within a few days/weeks, then your TV's 'convergence amplifier' board (aka "convergence amp board") is starting to fail.
This board may fail completely, in which case, your convergence procedure will fail to improve the picture.
A "convergence procedure" can be performed entirely by just using the appropriate setup menu option and your remote control.
This board may partially fail, in which case your convergence procedure will properly converge the Red, Blue, Green colors on just part of the screen, whereas a properly functioning convergence amp board will allow complete convergence of the colors across the entire screen.
Your TV's convergence procedure instructions will be found in your TV's Owners Manual.
At least one Projection TV manufacturer recommends that the consumer perform a convergence procedure every 30 days, but most TV owners find that excessive, and might only do one when (a) there's an evident color convergence problem in any part of the picture, or (b) once every 3-6 months.

How-to video: www.youtube.com/watch?v=esk4nYZKFcg
how-to instructions: www.ehow.com/how_2034880_perform-convergence--tv.html


cost to you: $zero
.

If the convergence amp board is bad, cost for a service call would be $300 (USD) plus $100 for a new board plus 50% markup on parts = about $450 (USD)
Cost to order a new board online: about $100 (USD) + shipping + sales tax.
Alternatively, if you can solder/desolder STK's (Power Amplifier Integrated Circuits), one can repair a convergence amp board for as little as $30 (USD) or so.

Dec 04, 2011 | Sony Televison & Video

1 Answer

Unable to perform convergence.


Ur 2 STK convergence ICS,and some or all it resistors are dead.U must know how to solders?Replaced the 2 STK convergence ICS and some or all it resistors,will auto focus ur convergence back to normal buy itself.Tries websites like Tv repair World.com,Tvrepairkits.com to buy a convergence kit to repair it ur self.The shop will cost u $300-350 for parts and labors.

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1 Answer

My picture has red ghosting. I tried to perform


This set has a bad convergence amp ic. This can be a complicated repair involving in depth convergence adjustment. You may be better off having a shop check it out for you. Thanks for using fixya.

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1 Answer

52"projection tv colors overlap


Your convergence is bad. If after trying the Auto Convergence option on the TV it doesn't correct itself, you can try manually adjusting the convergence Here is a link to perform a manual convergence on your set. Good luck!
Greg
http://www.ehow.com/how_2034880_perform-convergence--tv.html

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My i art pro is showing doubles.when performing a convergence manually,i noticed that that i can fix the problem by using the remote control.the problem now is that i can only go up and down when...


Your TV most likely a convergence failure. ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem


  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
Here are some photos of convergence problems.

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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.

0667c5f.pngSOLUTION

You will need to replace the convergence chips and possibly some convergence resistors and pico fuses. Its a fairly easy DIY job or you can call in a pro. If you want to do the repair yourself check the site www.TvRepairKits.com. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, email/phone support, etc.

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Sounds like a Convergence IC problem, the convergence ics would need to be replaced. This can be done by yourself or a professional.

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See if the problem is only occurring on HD sources. If it occurs on all sources - antenna, dvd player, cable box, etc then your convergence is off.
Some sets have a manual convergence option, but others do not - half of the time it doesn't work anyways. If you try the manual convergence, and it does not allow you to perform the required operations, then your convergence board is bad and needs to be replaced.

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Remote LOST - need info on what button to press...JVC AV-48WP30


There might be some features that the universal remotes aren't able to do. To perform the convergence alignment you should have the original remote.
Do you have the user manual or service manual?
The service manual will explain this process better.

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Converge problem on a kp-65ws500 sony rear proyection tv


You can download a copy of the service manual that explains how to enter service mode and perform convergence of the red/blue/green guns, but unless you are comfortable doing something like this, you may be better off calling a good shop familiar with rear projection sets and getting a quote to have a convergence service performed.

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