Question about Hitachi 51F500 51" Rear Projection HDTV-Ready Television

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Hitachi 51F500A blue is out of focus, and will not let me adjust it in manual convergence. Please advise!

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  • Hitachi Master
  • 1,212 Answers

Your convergence board is on the fritz! Try contacting TVRepairKits.com and see if they can help you!

Posted on Feb 06, 2010

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Is there a way to manually adjust the convergence on a Hitachi HDTV modol #43FDX15B?


Hi James,

If Auto Focus (Auto Convergence) won't complete the set-up stop trying to adjust it. There is a fault in the convergence circuit!! ICs have to be replaced and maybe some burnt resistors.

If you access the service set-up menu and try to adjust the "defective" circuit the Auto-focus may not work correctly after the IC's, etc are replaced. Experienced technicians know that the service menu allow easy resetting to correct the misalignment, etc. "First Time" technician can be easily misled, waste a lot of effort and never get a correct picture.

If you want to attempt the repair, buy the correct parts from a service guy that does this type of work. I suggest having the repair done by a local competent technician that is experienced with Hitachi Convergence Problems. It is considerably more challenging than changing a fuse.

Our Convergence Gallery shows a variety of Convergence Faults. If you live in Toronto, ON., Calgary, AB., or Vancouver BC. it costs $257 for Hitachi in home convergence repair.

Good luck.

Robert

Nov 17, 2015 | Hitachi Televison & Video

1 Answer

I have a 57 inch Hitachi TV, model F7F500A. The magic focus will not complete the blue. We have a blue line at the top of the screen. Please advise.


This set should use two of the STK-392-150 CHIPS for convergence, see attached photos.

If this is the case both chips need to be replaced and some adjustments made; if in your case blue will not move in some direction or you have a blue bow in the picture, one of the two chips mentioned is bad.

SD TECHsd_tech_34.jpg

Jan 14, 2011 | Hitachi 57F500 57" Rear Projection...

1 Answer

Thanks alot for yhe info ...I have a Hitchi Model# 51F500A and it looks 3D mostly the red is ghosting and I hope the convergence kit I order will help...Is there anything else that would cause this...


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....
  • 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.
  • TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.
Here are some photos of convergence problems.

42d3683.jpg

7859b01.jpg

e87380c.jpg
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

69189a5.pngCONVERGENCE SOLUTION

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

Apr 12, 2010 | Hitachi 51F500 51" Rear Projection...

1 Answer

Have Hitachi 50 inch Projector TV, model 51F500A. Built 6/2004. Picture has shadows, primarily in red color, on objects or writing. Top 6 inches distorted as well as bottom 2 inches. Tried Magic Focus...


that is come from your convergence panel theres
2 ic call stk - xxxx
youe have to replace it and then remake alignement for your convergence you should have it in the menu adjustement then magic focus will finalized and you can replace the 45 volt regulator transistor
hope that give you a idea//and should not be to expensive if you get an honest
good luck

Mar 22, 2010 | Televison & Video

1 Answer

ATTN SD Tech :Hitachi 51f500a cant make out resistor value


Do not guess on Hitachi resistors...every model is different. Go back to the company you bought the parts from and ask them. If you did not buy instructions goto tvrepairkits.com - they will help you out.

Feb 18, 2010 | Televison & Video

2 Answers

Magic focus error Hitachi 51F500A


ok, you have more than 1 post for this set--this model uses two of the STK-392-110 OR 392-150 Convergence chips.

If magic focus will not adjust the picture both chips need to be replaced--about 13 dollars in parts if purchased on Ebay.

Green is not offered to be adjusted since it determines the geometry of the picture--red and blue are adjusted to it.

Let me know how much skill you have and I can tell you how to fix the set--it requires two things--getting at the chips and being able to unsolder and replace them--there may or may not also be some resistors around them that are now bad and need to be replaced.

most shops get 300 or more for this repair--total parts cost if you are able to do it yourself is under 30 dollars.

If this helped you rate this solution as I do this here for free.

SD TECH

Dec 12, 2009 | Hitachi 51F500 51" Rear Projection...

2 Answers

I have a hitachi ultravision and the blue is off center.


your convergances amps ics have failed and need to be replaced alone with the 2 burnt resistors you will find then run magic focus

Nov 30, 2009 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

Hitachi 53UWX10BA dynamic convergence works but blue is blurry


I know this set very well---you are saying convergence adjusts ok everywhere? If you understand that the blue is usually de-focused a little----there are only two ways to adjust the focus of each tube-----

1.) Behind the front speaker grill there is an inspection plate---with it removed you will see a small black plastic block with 6 controls on it; it is the MASTER SCREEN/ FOCUS BLOCK

2.) THREE of the controls left to right are Screen controls(red, green and blue) and the other 3 are FOCUS--IT IS ALL black and you need to look close to identify which is focus and which is screen---you are looking for the BLUE focus control(one of the 6)

3.) With the convergence grid on screen cover the RED and GREEN lens in the set and try to adjust the focus of the blue(I presume you know how to put the set into the Convergence mode?

4.) The only other way to adjust the Blue focus is from the back of the set---with the Red and Green lens covered up place a blanket over the top of the set that covers the whole screen--from the back of the set you will note that all three of the black focal lens have a wing nut---with the convergence grid up and only blue lines present(Green and Red lens covered with a cloth) look from behind the set at the grid---loosen the wing nut on the blue lens and slowly slide the lens left or right until the blue has the best focus possible----if it will not adjust with the focal lens or the front focus control you have a circuit problem.

I do this here for free and if this information helps you take a minute and give me a vote here. If you have any questions or need advice reply to this posting here and I will assist you.

SD TECH

Sep 14, 2009 | Hitachi 53UWX10B 53" Rear Projection...

1 Answer

Hitachi 53" projection


there might be some resistor that shorted

Apr 28, 2009 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

Convergence problem


it sounds as though you need to have the tv converged

Oct 30, 2008 | Hitachi 43F300 43" Rear Projection...

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