Question about Mitsubishi WT-42311 42" Rear Projection Television

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Red convergence can be adjusted up and down, but not left or rt.

I replaced both IC's (STK392-110) no change. What else could it be.

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  • d7192003 Feb 16, 2009

    Model number WT-42311 rear projection. I checked the resistors in front of the IC's and they all read the same. Are these the bias resistors? Does the pcb need to be removed to read the pico fuses?

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Check in the area for amsll pico fuses or low valued resistors. These are often damaged when the ICs fail. Please verify your model number so we can provide additional details.

Thanks,
Dan

Posted on Feb 16, 2009

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I have a sony big screen kp57wv600 and the picture looks like I need 3D glasses. The pictures has a green and red hallo all around the outer picture. The picture is clear in the center and goes out and is...


Sir the problem of your tv is the convergence to narrow the problem try to adjust first the convergence settings using your original remote go to setting menu then to the convergence setting, you can adjust the red and blue convergence, you should be able to adjust the red and blue left, right and up, down you should align the red and blue to green but if you cannot move them far enough or if you cant move them in any direction the convergence IC is already defective replacing this IC will fix the problem, you will find this convergence IC attach to a large aluminum plate this aluminum plate is the heat sink. It is easy to locate if you remove the back cover of your unit be sure to unplug your TV
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this is the convergence IC if you remove this try to observe also if there is a cold solder or dry joint because sometimes this cause your convergence to malfunction observe the solder part of the convergence.
ekcnoel_19.jpeg
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1 Answer

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