Re: Dell 2709w No power



Hi Thomas, did it work for you?

A couple years after the fix the monitor failed again with the same problem. I needed to take the monitor through the same procedure again, and it works now. This time I heated it to ~230degC (sensed on top and 210degC at the backside of the board)....

Re: Dell 2709w No power



Hey kbs,
the outer casing for 2407 looks a bit different but the idea is very similar. Make sure not to put pressure on the screen as it is the most fragile part of the monitor. For this reason I like to pry it open from the side instead. (see the attachment)...

Re: Dell 2709w No power



I wouldn't. Without temp control you will not be able to get far. You'll either burn it or won't reach the meting point and that's useless.
I'd at least grab a heat gun and an infrared thermometer at Harbor Freight for 25$ or so....

Re: LG 47LE5500 dark screen possible no sond

I fixed my LG 47LE5500 today. It froze during normal operation, restarted and gave a black screen, no flashing, no back light, no sound, not detectable by a PC. It could turn on and off, LG logo would turn on, on-screen control and the remote seemed to work, but that's it.
Basically the symptoms are almost identical to the ones described above, well 2 years ago. I've got similar power supplies and LED driver readings (maybe slightly lower - 18V instead of 21V on LED driver).
The way it died (with reboot) made me suspect the...

Re: Dell 2709w No power

Congratulations ScoreAddict!
Glad it worked for you this time. In my experience flux plays an important role in the process.
MFG

Re: Dell 2709w No power

My Dell 2709w didn't start, no signs of life except the blue power light.
I opened it and measured a steady 24V supply, w/o much ripple. Disconnecting the back-light module didn't do much, so that was clearly not a dried out capacitor issue. (Back light is always the biggest consumer and the heaviest load on the 24V supply.)
Then I was very lucky to find this awesome forum, especially the 2 page chat between ytsoc and Neill, which has enough details to fully characterize this type of failures. Post #4 is simply amazing, thank you Neill! My monitor...