Question about Hitachi 50FX18B/19K 50" Rear Projection Television

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I have a hitachi 50FX18B and the convergence lines are not aligne

I have a hitachi 50FX18B and the convergeance lines are not aligned. When I converge the red and blue the lines should show a white cross. It does not a white cross. The blue and red are slightly off. I found the IC's. My question is do I need to remove the circuit board in order to get to the IC's?

Thank you

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  • Hitachi Master
  • 3,459 Answers

Yes - You will need to either remove the circuit board or lift up the tray. If you are not sure how to do it yourself read the link below.

  • This is a very common failure on Projection TV sets.
  • 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.
You can see some example photos and find a solution here...

http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Posted on Sep 19, 2009

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1 Answer

How do i fix a color alignment problem?


Tries push the button said FLASH FOCUS or manual + - convergence alignment adjustment?Yes,n o,used?The tv colors lines R,G,B mis alignments,have colors shadows pictures or 3D picture look alike?The tv have a convergence problems,it dead.The tv convergence board have dead 2 STK convergence ICS and some or all of it resistors too on the convergence board,must replaced these parts to fix it.To solved tv picture convergence problems.The shop,will cost u like $300-350 for parts and labors.

Jan 27, 2011 | Hitachi 46F500 46" Rear Projection...

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Red color is out of alignment


The tv have a problems known as a convergence problems,it dead.Tv colors lines R,G,B mis alignment,have shadows colors pictures or 3D pictures look like.The tv convergence board the 2 STK convergence ICS and some or all it resistors are dead.These parts on the tv convergence board,must require chaging to solved the tv picture convergence problems.The shop,will cost u $300-350 for parts and labors.

Oct 20, 2010 | Hitachi 43UWX10B 43" Rear Projection...

1 Answer

How do I aling colors: the red and blue colors are not align making the tv look distorted.


On my Hitachi there's a convergence button on the front panel. Press that button which will give you red & blue lines. You have to use your remote to converge (align) those lines to correct the picture. If the lines won't converge I've been told it could be a bad convergence IC & tech is needed to fix...could be approx $300 to fix.

Jan 02, 2010 | Hitachi 53UDX10B 53" Rear Projection...

2 Answers

Hitachi 61UWX10BA Convergence Still Off After Chip Replacement


Remove Front bottom Panel thier you will see front of convergence board there is a small blue contact switich with TV on press and hold it for 5 sec then you should see convergence Pattern so you can aline convergence correctly I have the whole Manual to tv just have to find it. anyway for now try this.

Dec 01, 2009 | Hitachi 53UWX10B 53" Rear Projection...

1 Answer

I have a hitachi 50FX18B and the convergence lines...


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 projeciton 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.

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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 will need to replace the convergence chips and possibly some convergence resistors and pico fuses.
This is a a fairly easy DIY job if you are handy and can follow directions. You can get complete repair kits from TvRepairKits.com or click here. They have put together DIY repair kits that include the OEM parts and step by step photo instructions for each repair. If you are not handy or can't follow directions we would suggest calling a shop.

Jan 23, 2009 | Hitachi 50FX18B/19K 50" Rear Projection...

1 Answer

I have a hitachi 50FX18B and the convergence lines are not lining up and the picture looks like you are looking through 3D glasses. How do I fix this??


This is a problem with the convergence circuit. If you can solder, you can fix this yourself. Please note as well that there are potentially dangerous high voltages present even when the set is unplugged. That being said... Open up the back and locate the convergence ICs (large black ICs attached to a heatsink and marked STKxxx). Try resoldering the pins on these ICs first. If that fails to resolve the problem, replace the ICs. There may be other related components that need to be replaced as well, but start with the ICs.

Keep us posted.
Dan

Jan 22, 2009 | Hitachi 50FX18B/19K 50" Rear Projection...

1 Answer

My convergence adjustment is not aligned


The fact that the magic focus doesn't work means your convergence ic's are shorted or bad

They have a kit for this tv it is available through local parts distributors
If you can't find it locally just Google HITACHI CONVERGENCE KIT

If you are not good with de-soldering and soldering do not attempt this repair. Remember to replace all the resistors in the kit

If you are not sure about doing this repair you should have your local tv guy do it for you








Jan 21, 2009 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

Red horizonal convergence tilts instead of adjusting evenly.


For your hitachi unit one of the convergence IC is bad along with couple of low value resistance on
the convrgence board.

Good luck
Dals123

Oct 09, 2008 | Hitachi 53FDX01B 53" Rear Projection...

1 Answer

Hitachi 50fx18b


Press "shift" on remote to write to Rom. "Rom write" is displayed. Press shift again. Wait about 25 seconds, then press "mute" to return to convergence mode.

Mar 02, 2008 | Hitachi 50FX18B/19K 50" Rear Projection...

1 Answer

Hitachi 50FX18B


KIT10 $29.50
Repair Kit for Hitachi convergence Chassis DP-14G
KIT10 Includes 2 pcs STK392-150 , 1 each of the following 1W axial lead fusible resistors:


http://www.digitalhome.ca/forum/showpost.php?p=564268&postcount=220
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Nov 13, 2007 | Hitachi 50FX18B/19K 50" Rear Projection...

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