Question about Dell UltraSharp 2709W LCD Monitor
My Dell 2709wb lcd gets off after working for 2-3 hours & blue power Led on right bottom gets flashing. Now I have to get the power cord out for 2-3 hours to get it back to work.
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Posted on Jan 02, 2017
The problem may be a loose connection. When I turn on my monitor, the green light blinks and a flickering white screen appears for a brief second every time. There must be a loose connection on the power board which may be causing this. The easiest solution is to tap at the back of the monitor. This will reconnect the loose end and the monitor will work fine until it gets disconnected again. I will open my monitor soon to find the real problem. But it will take some time to find it.
Posted on Dec 26, 2008
Hate to criticize and then not help out. I have this exact same problem with one of my E152 Dell Displays. I have read around and this whole line of displays seemed to have trouble. I found many issues like this and no solutions.
So, I like to tinker and tinker i did. I opened the case, removed the screen and went straight to the power supply board where I found two burned out capacitors.
Value Voltage Diameter Height
1000uF 16v 10mm 16mm
Found a great source for replacement parts and instruction to replace the caps at BadCaps.net
Let you know how it goes.
Posted on Apr 29, 2009
SOURCE: vertical lines LCD Dell 2001fp
I had the same problem until I decided to go in to figure out what was happening. I am not a technician but I'm a pretty handy engineer...anyway I opened up the panel and separated the big bulky electronics board which is encased in a metal enclosure from the LCD panel itself. After carefully doing so you will find that the electronics which actually control the LCD is covered by a long and thin aluminum plate. This cover can be easily removed by unscrewing 3 or 4 screws. Now here is where the problem arises. I believe that there is one chip (the biggest one you will see) that gets very hot. I measured temperatures in excess of 110 degrees F. It makes sense that temperature is the problem since the lines begin after the panel has been on for some time. My simple solution to this was placing a fan right over this chip. In doing so you wont be able to place back the thin aluminum cover but that's a small price to pay in getting your screen back to normal. The fan should also be small enough for you to put the LCD Panel back together (without this thin aluminum cover). You can hardwire the fan to the Speaker voltage output. I made this fix to my LCD panel about 2 weeks ago and since I haven't seen the lines again. In my opinion Dell knew that this would be a flaw in the LCD because if you notice the power supply for the panel is external which is uncommon in my opinion. The power supply tends to get really hot so in an effort to prolong the life of the panel they made this an external attachment. Well this obviously didn't solve the problem and they went ahead and put it out into the market. If you would like more details send me an email at Mike28ML(at)optonline.net Good luck, with this issue cus I know it way annoying the hell out of me.
Posted on Oct 02, 2009
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Basic LCD monitor troubleshooting guide:
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Replacement board: http://www.lcdrepair.us
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