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

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1996 Hitachi 50FX18B 50"

I have a 1996 Hitachi 50FX18B. RGB colors not synchronized, upper and lower portions of horizontal are in a curve position. please help me find a solution. tnx

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  • Hitachi Master
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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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Posted on Jan 02, 2017

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1 Answer

I have a problem with my hitachi. The picture has vertical blue/yellow stripes. Probably due to a green color split. Can you diagnose my problem?


You probably have a convergence circuit failure. Replacing the Convergence IC's and check for any open resistors for the Blue Sub Yoke located near the Sub Yoke Connector should cure the problem. Most of the IC's are
STK-392-110's, STK-392-120's, or STK-392-150's. Replace them as a set.
Hope this helps,
Skyassoc

Jun 25, 2009 | Hitachi 50FX18B/19K 50" Rear Projection...

1 Answer

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


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

Feb 24, 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

Hitachi 50fx18b 50" projection no power


Does it chirp? If so you need convergence chips replaced.

Read the link below.

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.
  • TV Makes Chirping Sound
You can see some example photos and find a solution here...

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

Jan 07, 2009 | Hitachi 50FX18B/19K 50" Rear Projection...

1 Answer

50 inch rear projection Hitachi looks like your watching in 3d


This is a convergence problem and igf you can solder, you can probably fix this yourself. If you feel comfortable working inside the set, and are aware of the dangers of the high voltage present there. try the following: Resolder the pins on the convergence ICs. If that fails to resolve the problem, replace the ICs. These are large black ICs attached to a heatsink and should be marked STKxxx.

Keep us posted.

Dan

Nov 24, 2008 | Hitachi 50FX18B/19K 50" 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...

1 Answer

Spiderwebs under Screen, how do i clean it ?


Yes, I have seen this many times. Usually the best way is to remove the upper back cover and clean out the spider webs with a soft, dry cloth, but be careful because the mirror is mounted to the inside of the cover.

Jun 24, 2007 | Hitachi 50FX18B/19K 50" Rear Projection...

1 Answer

Distorted view at upper 20% of screen horizontally


Wow for the convergence to shift you must have really moved it. First try the manual convergence on the set. if that dosent help then your gonna need a pro to come in and adjust it for you as it takes special equipment and the know how to do this kind of alighnment as its not a consumer alighnment sorry couldnt assist more. Good Luck

Jun 11, 2006 | Hitachi 43UWX10B 43" Rear Projection...

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