My lorex l22lt11b lcd touchsreen monitor does not show image when powered up the lcd power indicator flashes blueinstead of solidt

SOURCE: Acer AL1714 17" LCD Monitor Good Power supply no power on monitor

Hello, I have to same problem. I returned my monitor to Acer but got it back unrepaired, they could not see the malfunction. But I kept on sending it back, until I got a new model. Now after 2 years I get the same thing with this monitor. But there's no warranty anymore, so I looked into the problem myself. I found out that inside the powercircuit board is connected to the mainboard through a 10pin connector. The 5 pins that are on the lowest row, show a trace of white powder, I suppose occidation. I sprayed a little of contactspray in it. I must say the problem is not gone, but much better. The problem shows not so frequent anymore and lasts not so long. At first the screen switched of for 3 to 5 minutes and came back on. Now the screen is gone for perhaps 1 second and returns. So I'm almost convinced the problem has something to do with the connection of the powercircuitboard inside and the mainboard inside, when the monitor heats up a bad connection occurs due to occidation of the 10 pin connector. If you find a solution that fixes the problem 100% let me know, please. Mario.

Dean Joly

• 788 Answers
• Posted on Jan 11, 2008

SOURCE: HANNS-G Model# HX191

Seems like it. Can you see a very faint image of the screen if you hold your nose up to it?

SOURCE: blinking monitor power button and flashing image

I buy and sell these monitors (Dell E17FP) the problem is with the transisters (Q739, Q740, Q759, Q760) they short out and the monitor will just blink on and off. You have to desolder them and test them with a simple battery and light circuit. The reason they blow is because of the dirty solder joints by the transformers. If only on pair of backlights work the problem maybe transisters Q751, Q743. I home this answers your questions.

SOURCE: LCD monitor no display - flashing power button

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.
RATED:
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.

SOURCE: proview pl716s monitor will not come on

i just had this problem with my screen (proview pl716s) if you open the case and take out the power board, there are 6 470 uf capasitors bundled together and 1 220uf capasitor replace all 7 and that should fix your problem , that is what i did and it worked like a charm , oh and btw make sure before you swap your monitor from an older standard monitor to the lcd make sure the resolution is high enough becuase if it is not then the monitor will not be able to be displayd , hope that helps