Question about Hitachi 43UWX10B 43" Rear Projection Television

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Hitachi Model 43FDX20B Pink and Green Colors only

A little background to the issue I have. I bought my Hitachi 42" projection back in 02' and it has worked great until today. I turned it on this morning and noticed that the picture has only pink and green colors now with a little bit of a double image on certain channels.

I've heard that this could be one of the circuit boards inside and perhaps the convergence circuit is bad. Could this be the problem ? If so, I would like to repair the board myself, but don't know which convergence IC's and/or components to change on the board. Any help will be greatly appreciated.

Thanks,

Steve

Posted by on

  • Steve_Mi Mar 06, 2008

    Thanks team tech!! I've done a little more research from what you explained and found the part number "STK392-150". I'm going to order the parts and attempt the fix.



    Your help is greatly appreciated.



    Thanks,



    Steve

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The convergence IC's you speak of are always mounted side by side and use the same #'s and are mounted on big metal heat sinks . Most start with STK392-??? . Also you may have bad resistors that are discolored and need changed as well . Some sets are protected by fuses but don't look like the typical glass fuses. They are pico fuse which could be green or yellow in color but look like resistors but do not have the color bands . Replacing the board could require a total convergence alignment. If you decide to take to a shop your avg. cost could be $250 to $300. If you do it yourself IC's and resistors or fuse would run around $50 to $70 bucks . Don't by the $9.95 IC's as they do not hold up as well . They should cost $20 to $25 apiece . Good luck

Posted on Mar 04, 2008

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Model 43fdx20b there is a yellow 1/2 moon at top of picure from left corner down approx.6" and back uptoright corner, blue ghosting below that. what exactly can I do to fix and how much for parts ...


Projection TV sets have two very common problems. One is convergence ( 3D/Warped video) the other is CRT fluid ( Dull Video). Here are more details and solutions for both. Repair kits with instructions are also avail from www.TvRepairKits.com

Common Problem #1) Convergence has gone out

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 pics of convergence problems.


7859b01.jpg

e87380c.jpg
69189a5.pngSOLUTION #1

For more more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Common Problem #2) CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

578ba6c.jpg
TV set after fluid change

65af323.jpg

69189a5.pngSOLUTION

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 17, 2011 | Hitachi 43FDX20B 43" Rear Projection...

1 Answer

Thee green on my Hitachi 43fdx20b has gone wacky, ive seen an answer to if the red and blue go wierd but not the green. What can I do to save my t.v.?


Projection TV sets have two very common problems. One is convergence ( 3D/Warped video) the other is CRT fluid ( Dull Video). Here are more details and solutions for both. Repair kits with instructions are also avail from www.TvRepairKits.com

Common Problem #1) Convergence has gone out

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 pics of convergence problems.


7859b01.jpg

e87380c.jpg
69189a5.pngSOLUTION #1

For more more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Common Problem #2) CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

578ba6c.jpg
TV set after fluid change

65af323.jpg

69189a5.pngSOLUTION

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

Jan 24, 2011 | Hitachi 43FDX20B 43" Rear Projection...

1 Answer

My hitachi 43fdx20b has a pink tint to it. I have noticed that if i move the tint slider one way or the other it will turn the screen green, but now it doesn't. Does this have something to do with my...


My 43fdx20b had a pink tint to it also. The picture was clear otherwise. I found, on mine, I needed to adjust the Red Screen control. It was located behind the front panel. I removed the two screws on either side of the front panel and was able to remove the panel. Then I adjusted the Red Screen control. I found that if I tuned in an old Black and white movie I could adjust the color fairly accurately. Good Luck.

Jan 02, 2010 | Hitachi 43FDX20B 43" Rear Projection...

1 Answer

Hitachi 43FDX20B, watching tv, screen went blank, no picture, no sound turn off then back on power light on but the same nothing


The TV computer may have detected an error. See if the problem persist after unplugging the device overnight to reset it. If it does not, the issue may be with the board or its power supply circuit. Probably loose soldering or leaking capacitors.

Jul 24, 2009 | Hitachi 43FDX20B 43" Rear Projection...

2 Answers

WANT 2 KNOW 43FDX20B HITACHI TV IC NUMBER NAD PART NO


Hello,

You can find OEM IC's for this model (43FDX20B) from a major Hitachi parts distributor on the link below:

Hitachi 43FDX20B Replacement Part IC

If you contact them and provide the generic number or location number of the IC, they should be able to provided you with the needed parts.

Apr 02, 2009 | Hitachi 43FDX20B 43" Rear Projection...

1 Answer

Color distortion


Hi, could use a little more info, if your seeing red, blue, or green colors overlapping the image then your convergence IC`s have failed, if thats not what it`s doing please reply with more info about the symptom, video-tek

Feb 08, 2009 | Hitachi 43FDX20B 43" Rear Projection...

2 Answers

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Convergence IC's are at locations IK04 and IK05. There are some resistors that will be burnt up on the board as well. Replacement IC's are stk392-150, and are easily purchased, even off ebay. For the resistors you may have to get the location numbers and research the value. If you need the resistor values you can email me and I will get you the info.

Mar 04, 2008 | Hitachi 43FDX20B 43" Rear Projection...

1 Answer

HITACHI 42 INCH HD


Convergence Amp IC issue....originals are STK392-110..replace
W / upgrade Stk394-160E Hitachi part # CZ 01341 and check nearby resistors for overheating............................T.

Jan 07, 2008 | Hitachi 43UWX10B 43" Rear Projection...

2 Answers

Hitachi 43fdx20b


well i had the same t.v. and u will have to set the picture tube which is really simple it ight seem hard but if you need an hand give me an call 1-403-362-2560 and ask for jason

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