Question about Hitachi 50UX57B 50" Rear Projection Television

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Convergence will not adjust , and the TV takes too long to come on

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  • Hitachi Master
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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.


Convergence will not adjust , and the TV takes too - 7859b01.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.jConvergence will not adjust , and the TV takes too - 65af323.jpgh_mi
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

Posted on Apr 15, 2011

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1 Answer

Blue gun adjustment does not move blue line in menu convergence function. Any way to adjust or fix?


No.Fix.Tv have dead parts on the tv convergence board.Tv colors lines R,G,B mis alignment,can't move any colors lines.The tv convergence board the 2 STK convergence ICS and some or all it resistors are dead on the tv convergence board.These parts,must be replaced on the tv convergence board to solved the tv picture convergence problems.The shop,will cost u like $300-350 for parts and labors.

Oct 28, 2010 | Toshiba 61H70 61" Rear Projection...

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I hav a RCA model D52W25 its 52" it has convergence problems dont know how to setup the color things can u help??


Click on the following link :

http://www.riddledtv.com/repair/RCA.html. Go to the following section

RCA 52" D52W25 ITC222 rca_d52w25_small.jpg
(2) (3) (4)
(5) Stretched Image at top and bottom edge very distorted. Reheat all the surface mount solder points on the Small Signal Board. Then realign the set including convergence menu. To enter service mode: power off the set for 10 sec, then hold down Vol- and Ch- buttons for 10 sec. See this link: Alignment Procedure (pdf)


Also download the Alignment procedure pdf file. Hope this will help you. Please let me know if the information was of any help to you or you need further assistance.

Thanks

Oct 08, 2008 | Televison & Video

1 Answer

My tv went multi colored take it as it looks like a 3d television


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

Feb 20, 2010 | RCA HD61W66 61" Projection HDTV

1 Answer

Tv projecticg 3 images in red blue and green


Your convergence probably needs to be adjusted. Somewhere on your menus will be an entry for Auot Convergence or just Convergence. The TV will normally display a set of lines in 2 or 3 different colors. You would then adjust the lines so that they line up perfectly. That should take care of the issue.

Aug 12, 2009 | Philips 50PFP5332D 50 in. Plasma...

1 Answer

The convergence is way off and will not adjust. Pulled and sent Sony the D board...new D board installed but did not fix the problem. Flash focus nor manual convergence will adjust. Have 3 images for...


Hi, thank you for visit fix ya.
Do you replace STKs ICs?.
If so, you need go to service menu tv.
With you tv off, press on your remote control:
display + 5 + vol+ + power.
You will go to service menu tv.
NOTE: Be Careful before you do this, because if you don't know step by step convergence adjustments.....YOU WILL MESSED UP YOU TV.
I recommended if you don't have electronics skill, take the tv near to tv shop.
Any question I will be here .
( I need model number tv, please)
Thank you

Jul 26, 2009 | Televison & Video

2 Answers

Picture is multi color, double shadows, curved


This is failure of convergence out ICs in TV. Qualified TV tech will replace convergence out ICs or board.

Feb 14, 2009 | Philips Televison & Video

1 Answer

52 in rca projection 2006 cutting of the top of heads of people


There are manual settings on most projection tv's to adjust the size and to bring the picture down so it is centered on the screen better. Try adjusting the three colors mentioned below first. All projection tv's are pretty similar. If you need to adjust the picture manually, which you should not have to, there are manual knobs behind the front of the tv or at the rear. They should be marked for thier function.

Here is how to adjust the convergence one color at a time.You should be able to get to the convergence screen with your remote. You need to go into the setup screen and read what is on the menu there. It should say how to adjust when you get there.

Convergence- The Auto convergence feature automatically adjusts the TV’s tubes
(this may take several minutes, after which you can make fine adjustments to the
convergence settings); Red convergence displays the Red convergence screen,
allowing you to use the arrow buttons to align the red and green images; Blue
convergence displays the Blue convergence screen, allowing you to use the arrow
buttons to align the blue and green images.

Also this is in the manual for a generic projection tv.

Call 1-877-RCA-HDTV and have your unit’s date of purchase and model/serial number ready.
• A representative will troubleshoot your problem over the phone.
• If the representative determines that you should receive service, they will provide you with the name(s) of the
Authorized Service Center in your area.
• Contact the Service Center and arrange for home or pick up, repair, and return service, provided that your unit is
located within the geographic territory covered by an Authorized Service Center. If not, you must take your unit to the
Service Center location at your own expense, or pay for the cost the Service Center may charge to transport your unit to
and from your home.
• Proof of purchase in the form of a bill of sale or receipted invoice which is evidence that the product is within the
warranty period must be presented to obtain warranty service. For rental fi rms, proof of fi rst rental is also required

Here is a link to rca tv manuals if you don't have one.
You can download them in pdf.

If this is not a help, please give the specific model number.

Apr 21, 2008 | Televison & Video

1 Answer

Color convergence out on rc 52 inch projection tv


If it is way out, it is more that an adjustment. It takes a crosshatch generator to do the convergence.
Electrode

Mar 04, 2008 | Toshiba 55H70 55" Rear Projection...

2 Answers

Sony HDTV Convergence Issue


No, You will not solve the problem with only changing the convergence IC, associated resisters may also be required.
Beside of that, after spending time to get parts and replace the ICs, you need to make and adjustment the color lines (about 14 lines)
This adjustment without experience will take you about 3 to 4 times and 4 hours each to get thing right (if you areskillfull, most of people failed this adjustment).. The total time spend for this problem would take you full 24 working hours.
I successfully adjusted one set of my big TV (95%, need more more round)), on another set one I failed.

Nov 30, 2007 | Televison & Video

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