Question about Zenith R40W46 40" Rear Projection HDTV-Ready Television

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Convergence chips and resistors

Hi i own a zenith projection tv the model number is r40w46f we are attempting to change the convergence chips and resistors on our tv as we have been having problems with the red and the blue. their are some discolored resistors on the board. can anyone tell me what size resistors we need to change them out? we bought an assortment of them with a convergence kit we purchased however we have now realized that no where on the set does it say what size we need. thanks for any help.

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  • pomager_g May 21, 2009

    hi thank you for you help the numbers on the board are R2736, R2730, R2732 and R2726 i believe they are called convergence resistors we need to know what size to replace them with thanks for any help you can offer

  • pomager_g May 21, 2009

    hi i have just realized that what i need is the resistor ratings so that i know what to buy. if anyone can help me with this it would be great

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In order to assist further, more information is required. You indicate that there are some discolored resistors on the board. There should be a marking on the board at each location like: Rxxx Where the xxx is a number. If you can post the numbers here for the parts that are discolored, I can look them up in the service manual for you.

Thanks,
Dan

Posted on May 21, 2009

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I have the same problem my numbers are R2728 and R2734 could you please tell me what type and where can I get them at

Thanks,
Sheri

Posted on Dec 01, 2009

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1 Answer

Convergence was bad. Before kit was used no audio or video


It says Zenith here and if different let me know----if the convergence failed and took a resistor or fuse device (not a glass fuse) out the set will be dead--set detects no voltage to that area and shuts down for protection.

May 16, 2012 | Zenith R50W47 50" Rear Projection HDTV

1 Answer

My zenith a60m91w1 has a bowed hourglas picture ithe prsim like colors at top and bottom


Your TV most likely has one of two 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 around images.

Picture of a set that needs the fluid changed.

578ba6c.jpg
TV set after fluid change

65af323.jpg

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

Dec 24, 2010 | Zenith IQB60M92W 60" Rear Projection...

1 Answer

I have a Zenith approximately 8 years old. The color is not aligned and the convergence/alignment feature on the remote control seems to do nothing. Can a service tech do an in home alignment?


Your TV most likely has one of two 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 around images.

Picture of a set that needs the fluid changed.

578ba6c.jpg
TV set after fluid change

65af323.jpg

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

Dec 22, 2010 | Zenith R50V26 50" Rear Projection...

1 Answer

Where can you get a schematic for the Zenith R60V26 Projection TV? We have a convergence problem.


all you need is replace convergence ic chips and 2 3.9 omms resistors and should be ok.

Dec 18, 2010 | Zenith R60V26 60" Rear Projection...

1 Answer

Hi, my zenith won't turn on at all. My friend gave it to me and said it needs a convergence chip. When I press the power button I hear a series of seven small chips and nothing else. I work on computers...


U have tools like a soldering iron,desoldering pump or desoldering braid and solders?U know how to do basic soldering?The tv convergence board require replacing 2 STK convergence ICS and some or all it resistors too,to solved this chirping sound problems.Tries websites like Tvrepairworld.com,Tvrepairkits.com to buy a convergence kit to repair it ur self.The shop,will cost u $300-350 for parts and labors.

Oct 14, 2010 | Zenith R40W46 40" Rear Projection...

2 Answers

Zenith projection tv convergence proublems


YOU HAVE BAD CONVERGENCE IC'S AND POSSIBLY SOME LOW OHMAGE RESISTORS THAT FEED THE IC'S.

Sep 14, 2009 | Zenith R40W46 40" Rear Projection...

1 Answer

Zenith R60v26 has burnt resistor at RK5 on convergence board


Hello, I have the exact same issue with my R49W36, I replaced the convergence chips but there are also two 1 ohm resistors with the same color pattern as yours that are bad. I have looked all over and cannot find a 1 ohm resistor anywhere. Where did you find it?

Dec 31, 2008 | Zenith R60V26 60" Rear Projection...

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