Having problems with your Dell E172FP 17" LCD Flat Panel Monitor ?

Monitor won't stay illuminated for more than 2 seconds. When I turn on via power button, screen comes on for 2 seconds and goes dark, yet the power button light stays illuminated. I can repeat this on/off process indefinitely with same results. I turn it off and then back on, it illuminates for two seconds and goes dark.


Answers :

Check for bad capacitors in the power supply section, also check for shorted out transistors (4) C5706/5707 in the inverter circuits.
Sounds like classic symptoms of capacitor failure.
\012 Old thread, but in case anyone else is still looking for an answer, the problem is probably bad capacitors on the power board. There was a world-wide problem with capacitors in the early 2000's that affected all kinds of electronics. For a good summary/review see https://en.wikipedia.org/wiki/Capacitor_plague .
\012 Make sure the replacement capacitors are the proper size, specs (volts (v) & micro-farads (mf)) and temperature rated for 105\302\260C. Make sure to install them in the proper orientation, they have a positive (+) and negative (-) terminal. I had 3 bad ones but replaced them all. It's actually quite simple and cheap if you have basic soldering skills. If you're not sure, research soldering technique and safety. Be Safe Out There.
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