Question about JVC AV-48WP30 48" Rear Projection Television

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Convergence chips I'll just start by saying I'm no TV repair man, but I can solder with the best of them. I have recently started repairing broken big screen TVs for fun. I have replaced convergence chips in 4 different TVs, all different models. Two TVs worked just fine and the other two smoked resistors next to the convergence chips. My question is: What am I doing wrong? Is this typical? Thank you, Heath

Posted by Heath Urbanczyk on

  • Anonymous Feb 16, 2008

    I have a convergence problem and need to know where the board is located on a JVC AV48WP30

  • Anonymous Mar 26, 2014

    I am using my old vcr to send an analogue signal to other TVs in the house - but the output signal is clashing with the aerial signal and causing snowy images on the other Tvs

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3 Answers

Anonymous

Bobbo4,
The convergence board for the JVC AV48WP30 is located a the front of the TV. Remove the grill from the front of the TV. I believe you will find it on the left hand side. The convergence ICs (STK392-110) are located on the black heat sinks. I replaced my ICs with STK392-180 and blew up my board. The replacement board from PartStore.com is $200.00. If you are going to replace your ICs I suggest replacing them with the original part numbers. I hope this helps you.

Heath

Posted on Feb 17, 2008

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I need to know where the convergence board is located ?

Posted on Feb 16, 2008

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The convergence IC or in a sense ,amplifiers and the resistor are output resistors... if they are burning up the current going through them is spiking too high... TO me this is an indication that the "convegence yokes" are shorted. These are coils around the tubes that control convergence. I would suspect maybe that these are shorted to ground somehow. This is my first guess for this problem

Posted on Feb 11, 2008

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