Question about Dell E173FP 17" LCD Monitor

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I have a similar problem to one posted a few months ago - flashing LED on the power button, except the monitor does come on after a couple of minutes and the LED stops flashing. bdmrtn said to the other poster: "You may have shorted out transistors in the inverter circuits, common problem. Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, blown fuses, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). " Would mine be the same possible problems, just less far along? The problem just developed last night.

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  • Louis Ebert Sep 17, 2010

    mmckitri, May very well be your Dell e173FP has same failed components as stated by "budmrtn". Just tell us the "brand names" of the capacitors (electrolytic filter caps) you find populating your monitors "switch-mode-power-supply / cold-cathode-fluorescent-lamp-ballast circuit board" !!!! Are any of them named "CapXon" or "ELITE" or "Jun Fu" ??? If you find any of them I suggest you make sticky lable and place it over the Dell logo of unit with new name of : CrapXoff!!! Good luck with the repair. 12fixlouie

  • mmckitri Sep 19, 2010

    So far we have bulge-y leaky capacitors. Still looking. Will keep you posted :) Thanks so much for the tips.

    Mary

  • mmckitri Sep 26, 2010

    We replaced the 2 leaky capacitors, crossed our fingers, and w00t! The monitor is back in business. The old capacitors were rated at 10V, and we replaced them with 16V ones.

    Thanks so much for your help budmrtn!

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Look real close at the solder joints on the inverter transformer pins, and the transitors. What usually happen is that the cold solder joints will mess up the bias on the transistors or causes arcing and that will take out the transistors, you need good magnifier glass to see, you will see ring/cracking around the component's leads.
http://s807.photobucket.com/albums/yy352/budm/Poor%20solder%20joints/
It will get to the point that the transistors 2sc5707/5706, and also still should look for bad caps.
Replacement board: http://www.lcdrepair.us
http://s807.photobucket.com/albums/yy352/budm/Dell%20E173FPb/

Posted on Sep 18, 2010

  • mmckitri Sep 19, 2010

    So far we have bulge-y leaky capacitors. Still looking. Will keep you posted :) Thanks so much for the tips.

    Mary

  • mmckitri Sep 19, 2010

    So far we have bulge-y leaky capacitors. Still looking. Will keep you posted :) Thanks so much for the tips.

    Mary

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