Question about Acer eMachines Black EL1850G-42w Desktop PC with Intel Celeron E3400 Processor and Windows 7 Home Premium... (884483099900)

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My modem blinks off and on , when my pc is idle. Is that normal? and where could I buy a book on info on e-machines? When my monitor goes dark, then my modem starts blinking off and on. My computer is still turned on. When this happens. I just bought my computer 2 days ago. Thank you, Connie

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Your modem is always talking to your service even when not connected to your pc it is just showing that it is working. Emachine manuals are a little hard to find, your best bet is to contact the store where you bought it, I know Best Buy used to sell the, they may have a manual, and you could try contacting emachines directly.

Posted on Mar 12, 2011

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Hi, my problem is that i can run my pc only in safe mode and if i try to use it in the normal way the monitor tunrs black and the blue light starts blinking, i can't configure it with the resolution...


This usually happens when your computer is set to a resolution that the monitor does not support. I have seen it when I set the resolution too high. That's why windows asks you to confirm the new mode after is switches to a new mode.

I think that in safe mode, you can set your 'normal' resolution. Try setting it to 1024x768 or something. If this helps you can try to find a resolution that works for your monitor. If -after a resolution change- your monitor goes dark: Don't touch the keyboard. Windows should switch back after about 10 seconds.

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Monitor went dark


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You could have a defective screen - a defective inverter or a CCFL lamp.
To determine if you have a LCD screen or video card problem, read this and follow the instructions.

Defective CCFL backlight, it may have the following symptom:

  • Screen flashs on red/pink and off.
  • Picture stays on in red and slowly be come normal.
  • Picture flickering with dim display.
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All these symptoms indicate that the LCD backlight lamp (CCFL Lamp) has reached the end of the life and all you need to do is replacing the CCFL lamp

Connect an external monitor to your laptop and power it up, if you see the normal Windows images then the video card and laptop is OK and the problem is definitely the backlight.

Dim image and/or dark display on the laptop's LCD screen indicates a faulty LCD backlight and it could be the inverter that supplies high voltage to the CCFL lamp or it is the CCLF lamp is nearly burnt out or burnt out, most likely this is the case.
The inverter can be replaced easily but the CCLF lamp is more time consuming and requires soldering skills.
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Safe Mode is also Black..


I found your other posts regarding this problem. I believe it may be that your monitor is failing. Do you have another monitor to try? Another clincher is to start the computer, do the login, and when the monitor goes dark, turn off it's power button, and turn it back on after waiting for 30 seconds or so. If the monitor lights and looks normal then goes back off, it's the monitor at fault.

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