Question about HP Pavilion F1703 17" LCD Monitor

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F1703 LCD goes blank after 1-2 seconds

Dave,
Got to the video board and "the 4 capacitors with coils around them" you refer to are actually "inductors" L701, L702, L751, an L752 and I checked conductivity through the solder joints and all is well. Any other ideas?

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  • PAULFM Apr 03, 2008

    MY HP f1703 FLAT SCREEN IS BLANK, WHEN I SHUT DOWN AND RESTART, THE HP INSIGNIA FLASHES ON THE SCREEN THEN GOES BLANK AGAIN AND STAYS BLANK.

    I HAVE FOUND A COUPLE SITES THAT REFERANCE THIS SAME PROBLEM, IT APPEARS TO BE AN ISSUE WITH THIS MODEL. HP IS NOT RECONISING IT AS A DEFECT. I WILL ATTEMP TO REPLACE THE POWER CORD, THIS HAS SOLVED SOME PEOPLES PROBLEMS.

  • Anonymous Apr 17, 2008

    everytime i turn the screem on everything is find, but after 1-2 second everything turn to black, but the power button is still blue. Do you know the problem to this?

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You are not looking for a problem in the inductors. There are 4 transistors (2 pairs) near the transformers where the CCFL's plug into the board. They short out and you end up with your problems.

The transistors have 3 legs and stick up out of the board. They will look fine visually, since they are shorted internally.

Hope that helps =)

Posted on Apr 09, 2008

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Thsi model has known problem with bad solder joints due to contamination, you need to remove the old solder on the four inductor leads, clean the leads eal well and resolder, see my pictures here: http://s807.photobucket.com/albums/yy352/budm/HP%20F1703/
Al so look to see any one of the capacitors have bulging top, they should be completely flat top.

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There are two coils in the circuit board that normally causes this problem due to dry solder. try to desoder clean and resolder these coils.


Hope this helps.
If it does, please vote. Thanks!

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1 Answer

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4 Answers

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Sounds like cold soider joints on your video board. If you take apart the lcd screen and get to the video board, theres 4 capasitors with cooper coils around it. you can add soider to it. theres 2 pins for each. I fixed 15 or more for that same model. Its a known problem with that model. Hope it wworks for ya

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