Question about Gateway FPD 1730 17 in. Flat Panel LCD Monitor

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Gateway Monitor We have a Gateway 17'inch LCD monitor and in no particular sequence the monitor will blink on and off, and go completely black and the green power light will also go off. We have changed the power cables and this still has not solved the problem. What else could be wrong?

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  • darkanimekid Apr 18, 2009

    my cable is cut on my gateway monitor 17in model No:FPD1520 i am look to replace the cable which is a E1199332 AWM 2919 80C 30V VW-1 low voltage computer cable copartner but the problem is finding this cable and one that will replace the old one in the monitor. I have no idea where to look for a new one. plz help

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  • 5,568 Answers

Unfortunately, the power supply is internal to the monitor and this is the likely problem. 
It is of the 'universal' input type that is compatible with a range of  90-264 VAC 50/60 Hz indicating that it is a 'switched mode power supply' and these have a design problem that makes the reliable operation of the supply doubtful unless a certain weak point (electrolytic capacitors in the feedback path) is properly attended to.
The run-of-the-mill capacitor in this useage is subjected to high ripple currents which can cause a cheap capacitor to chemically break down, dry out and then finally fail to pass enough signal to keep the supply running or enable it to start up.
 
If you are adventurous, you can open the monitor, examine the components near where the AC power cord terminates and look for vertically mounted, cylindrical parts with shrink wrap bearing the values and an exposed, scored, aluminum top.
Sometimes, the top will bulge or the base at the board may show signs of crystalline deposits.
If you find no parts that appear as described, the alternative is to find a tech who owns a capacitance meter with DF (loss) function. So equipped, the failed part is fairly easy to find. 
The values of these parts will lie between 4.7 to 100 uF with voltage ratings of 6 to 35 VDC.
Defective parts need to be replaced with special capacitors that are rated for high frequencies with low losses. These parts cost a few pennies more and most companies don't seem to care about the eventual failure of the inferior parts since it will typically happen after the warranty expires.      
 

Posted on Sep 12, 2008

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