Question about Gateway FPD2275W LCD Monitor

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LCD monitor image blinking

Thanks for your earlier post about the light/controller.

On my Envision LCD, on any computer, it displays the image about .25 seconds while a faint sound of "energizing/de-energizing" is heard, then it goes blank for about 4 seconds. Do you know if LCD's tend to have bad capacitor issues like CRT's? 'Or perhaps another common issue that would cause this phenomena?
Thanks for any help you can offer,
Steve

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  • Anonymous Apr 30, 2008

    Acer logo flashes (1 second) then the screen then back to the logo and so on. I tried rebooting, unplugging - took the computer to the shop - added RAM.

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There are two coils in the circuit board that normally causes this problem due to dry solder. try to desoder clean and resolder these coils.


Hope this helps.
If it does, please vote. Thanks!

Posted on Apr 30, 2008

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No display. power light blinks green. no menu or other buttons work. Using Windows xp pro. ideas?


Look for bad caps as shown (the 19" uses same chassis as the 17" or close to i,t depends on version)

http://s807.photobucket.com/albums/yy352/budm/Envision%20EN7410E/

Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, blown fuses, poor solder joints, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.
http://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net

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Need to check the caps in power supply, fuse and transistor/IC/transformers in the inverter circuits, it can also be bad lamps assemblies.
See example of failed 7410 due to bad caps. Post back for furhter help.
http://s807.photobucket.com/albums/yy352/budm/Envision%20EN7410E/

Service manual: http://elektrotanya.com/?q=showresult&megnev=Envision%20&megnev2=%20EN%207500%20&kategoria=&kat2=all

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