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Hi i have a 93

Thanks arwilson for the help! so far i've located the ic 2004 but i can't seem to find the jumper between the pins 2 & 6. and could you please help me understand what you mean by "jump pins 6 & 7" also please tell me where to look. thanks for your time Roy

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The jumper looks like a staple from the top side . It is soldered to the bottom of the board. The copper trace can be followed from pin 2 through the staple ( jumper ) to pin 6 of IC 2004. Remove the staple ( unsolder from the board ) then solder the staple from pin 6 to pin 7 of IC 2004. The IC has a notch at one end. Pin 1 is the first pin to the right of the notch looking down on it from the top. The pins are in consecutive order 1,2,3 etc. Hope this makes sense.

Posted on Mar 13, 2008

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Mitsubishi WS-65807 convergence - keeps blowing F9A04 pico fuse?

You\'ve already gone a hundred times as far as anyone else within a hundred miles of you, Dave. 8)

It might be the case that something else was borderline & couldn\'t tolerate the convergence being corrected. If that sucker\'s VERY old, I don\'t think I\'d chase it very much farther, myself... you may never get any rest.

Or... it could possibly also be the case that you overheated a lead on one of the ICs. They can\'t tolerate very MUCH heat - barely enough to get it hot and get it done. Especially if you soldered the leads sequentially instead of alternating like Pin 1, Pin 14, Pin 2, Pin 13, etc.

If the ICs were\'t very expensive, you might try it one more time - ICs and picofuse. Take every precaution not to overheat the IC leads. If it doesn\'t work THIS time, donate it to a good cause unless you simply like challenges.

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Likely you tried to adjust it too far and now have a shorted convergence IC---simple way to prove or disprove:

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if further information or a question press the "make a comment" button on this page.

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1 Answer

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