Question about Projection Televisions

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Convergence is not working...i've been reading about it and i know that's the prob.The prob for me is that i dont know what kind cause i don't have the exact model for my tv i just know it's 50 inch and that it's a zenith

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  • estebanmuril Jul 04, 2008

    ok i just got the model nub, it's R57W46 and manufature date is feb 2004

  • amberotero23 Jan 03, 2009

    my converge is not working haw do i us it.?

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  • Projection T... Master
  • 8,617 Answers

The model number should be on a tag on the back panel. If you can post the moel number I can post the correct Ics and also a link where you can get replacements with free instalation instructions. If you cant locate the model number does the tag satet the year of manufacture?

Posted on Jul 04, 2008

  • Sonny Berry
    Sonny Berry Jul 04, 2008

    Okay youre model uses two convergence ICs they are both STK392-120 you can get replacement ICs at the following link and they provide free instalation instructioms with pictures so you can do the repair yourself, and they also have free tech support in case you need additional help. here is the link.

    334p278010

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1 Answer

How Do I fix the convergence on my 2001 Hitachi Projection Tv


Your TV most likely has one or more possible problems.

Problem #1: Convergence Chip Failure ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem

  • 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.
701cb04.jpg
77ea520.jpg
f0900cb.jpg
Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.



You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kits for most models. If you don't see a kit for your set send them a quick note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, etc.


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 aroundimages.

Picture of a set that needs the fluid changed.

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TV set after fluid change

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2c07611.pngSolution #2


What you will need to do is replace the coolant and clean the crt. You can get a repair kit from www.TvRepairKits.com that includes replacement coolant, photos. instructions, etc.

Jan 05, 2012 | Hitachi 53UWX10B 53" Rear Projection...

1 Answer

The projection is out of alignment on my tv. Well i've tried adjusting the convergence at the 5 points on the tv but no matter how many times i press the adjust buttons the crosshairs don't move....


the convergence board is bad you need to replace the convergence ICs', to have it repair you are looking at 300-400 and if it was me I just buy a new LCD.

Aug 18, 2011 | Mitsubishi VS-55609 55" Rear Projection...

1 Answer

The tv has been shutting off and i'll turn it back on then it will shut off again and now it shut off and won't turn back on?


Ur convergence ics it dead,also cause this prob.Must replaced the ICS,tries these websites for convergence kit,know how to solders?Tries Tv repair world.com,Tv repair kits.

Nov 09, 2009 | RCA HD52W59 HDTV Projection Television

1 Answer

Convergence toshiba 50a62


http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm

heres a simmilar repair on a pioneer. I can help with specifics if you attempt

Jan 09, 2009 | Projection Televisions

1 Answer

Mits WS-55809 Convergance prob?


You are confusing yourself = TMI ! Stick to convergence repair...
IMHO , hire a tech to do this repair for you.......................T.

Nov 07, 2008 | Mitsubishi WS-55809 55" Rear Projection...

1 Answer

Hitachi 43FDX01B (convergence) problem


hi i have same prob iv bin told its a convergence chip an thay r £150 ! thay go bout evry 6 years an its comon .. any way there coming 2 fix mine 2day so ill let u know if it sorts it out my mail is mjoutlaw@hotmail.co.uk thanx

Jan 30, 2008 | Hitachi 51F500 51" Rear Projection...

2 Answers

Picture quality


Have you tried adjusting the convergence yourself?

 

Oct 15, 2007 | Panasonic PT-51HX41 51" Rear Projection...

1 Answer

Hitachi rear projection


Sorry--You will need resources to fix this one. STK392-110 IC's need to be replaced,afterwards convergence alignment in servicer mode may be needed.

Oct 02, 2007 | Hitachi 53UDX10B 53" Rear Projection...

4 Answers

I don't know what is going on...?


Remove solder from regulator output pins (on convergence pcb),clean and resolder.Practice visual acuity technique=solder any/all bad connections.Hire a pro,if need be.

Aug 30, 2007 | Pioneer SD-P50A3-K TV

2 Answers

Power supply/convergence issue...


Your Projo is a complicated piece of equipment, involving 3 picture tubes (like 3 tv's), convergence failures are extremely common, I dont think $550 is totally unreasonable, but I dont think it is a power supply issue if it is just effecting 1 color, usually it would cost around $100 parts $300 labor to repair, might be a little high, I suppose they are also charging you for pickup and delivery, I hate taking sets into office as that sometimes jars stuff loose or cracks boards.

Jul 10, 2007 | Panasonic PT-47WX51 47" Rear Projection...

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