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

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Question regarding convergence resistors

I'm having the blue convergence problem exactly as desrcibed in this forum and have purchased new IC's. I also purchased a pack of 3.9 ohm 2 watt flameproof 5% tolerance resistors as described as well. I have two resistors on my convergence board that are discolored, I can't tell what the original color codes on these resistors are as the bands now all look black and the position numbers are not the same  as described in the other posts. The discolored resistors on my board are labled R2726 and R2732. My question then is are these two resistors also 3.9 ohm 2 watt resistors? or another way of putting it is are all of these resistors on the board  the same type? Or do I need to find out the ratting of these two resistors and purchase different ones that those I already have?

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  • dougbrown May 27, 2008

    I see that this topic is discussing all sorts of brands and models, so I thought I should specify that my TV is a Zenith R40W46

  • dougbrown May 27, 2008

    sounds good, I'll let you know how it goes then

  • dougbrown May 29, 2008

    worked like a charm, only problem was I learned not to solder your fingers

  • mitchelldrj Aug 08, 2008

    Yes, we are neophytes to the whole do it yourself in tv repair. Anyhow, we have blue arcs in our pictures, too. We have worked on computer circuit boards before. Is it similar? All we need to do is locate the circuit board and which resistors and IC's (?) are out and replace, right? If so, I think we can handle that once we get the parts. Thanks for your assistance. We are always up for a challenge.

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Yes those two resistors are also 3.9ohm 2watt 5% resistors

Posted on May 27, 2008

  • Sonny Berry
    Sonny Berry May 29, 2008

    Glad you got it working, you saved yourself about 400.00 doing it yourself. Glad I could help you out.

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3 Answers

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If your tv is not a DLP the problem is in the convergence, try to adjust it using your original remote control go to the setting menu then to the convergence section. Adjust the red and blue convergence. you should move the red and the blue in up, down and left, right if this color does not move far enough your convergence IC is already defective. Replacing this convergence IC will solve the problem. In locating this convergence IC you should remove the back cover of your unit but be sure to unplug it before doing this. This convergence IC is attached to a large aluminum plate, it is the heat sink, and it has a marking of stk- ### followed by numbers. You can try to pull it out using a soldering iron and soldering pump but be careful you may damage the board and cause much problem to your unit. Or you can contact a technician to do it for you and save you from stress good day and best regards.

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http://www.ehow.com/how_4575598_yourself-projection-tv-repair-convergence.html

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