JVC convergence problem


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JVC convergence problem

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Halcronus
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Jan 26, 2009, 5:43 PM

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JVC convergence problem	Can't Post

Trying to get some help so I don't have to fork out 94 bucks just for a diagnostics + extra for repair. Thanks ahead of time if you can help.

I have a JVC model number AV-48wp74. The colors don't line up right in the convergence which makes a very annoying picture to watch. I think it's mainly the red that has the issue the blue and green seem to line up pretty decent and I have a teal line in the convergence screen with a bowing red line. Anyone know what causes this and if I could possibly fix it or if it is even worth the hassle?

techchris
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Jan 26, 2009, 6:46 PM

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Re: [Halcronus] JVC convergence problem [In reply to]	Can't Post

change the convergence ic's marked STK392-110 (use 392-150 for better reliability) do not overheat the printed board when you unsolder or resolder or the print will peel off the board. use a 45watt solder iron, no higher. also check 2x 2.2ohm safety resistors nearby for open circuit, as they often go when the ic's fail.

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