Question about E-Machines M2350 Notebook

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TFT Screen Loose Connection?

Symptom: At one point the TFT screen would be on and functioning but if the screen is adjusted to another angle, it would go dark. Now it doesn't function at all. How do I access the "ribbon wiring" for the TFT screen to make sure it has a good connection?

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  • mjgraft5 Nov 28, 2007

    Thanks for the insight above. I checked the cable and it wasn't pinched or moving around, so I ordered, received, and installed another LCD inverter board for this laptop from Now the laptop's monitor is very very faint. As though it was on a dimmer switch, very low.

    Any other suggestions from anyone?



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These models sometimes have a problem with flickering screens, screens going black, etc. This is caused by the cable running from your LCD lid area to your motherboard.

To gain access to this cable, flip your laptop upside-down, but make sure the back is facing you (vents and such). There are 4 screws along this side, you only need to take out the middle two.

Once that is done, flip your laptop upright again, open the lid and pry up the power bar. The cable you seek is running on the right side, should be wrapped in gray-colored tape.

Adjust this cable so that it cannot move and is not being pinched, and you should be set.

If that didn't work, and since your LCD is no longer lighting up at all, I'm almost leaning towards your problem being your inverter board. Very easy to swap out, and cheap at around $20 at

The LCD inverter board is located at the bottom front part of the LCD lid. Just take off the front frame of your lid by removing the power bar (as instructed above) and then removing the screws under the rubber bumpers on the LCD frame. Then it's just a matter of carefully peeling the glue holding the frame down at the bottom.

Your inverter board is the long green-colored board you should see with the front frame removed. This board will have two connections plugged into it. Quite the easy swap, yes?

Good luck!

Posted on Nov 16, 2007

  • Code
    Code Nov 28, 2007

    If it is very very faint, it sounds like that inverter you received is bad as well. That is sometimes possible with used equipment unfortunately.

    I bet if you contact where you purchased it from they will send you a replacement. Give that a try, I wish you luck once more! =)



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The Dell 1504FP is a flat panel LCD monitor that has a viewable area of 15 inches.
The monitor, which uses TFT technology, is designed to be used in a home or office and displays video at a resolution of 1024 x 768 pixels.
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Troubleshoot a TFT Monitor
TFT monitors can suffer from many potential problems, ranging from simple screen brightness issues to disconnected inverter or LCD cables.
These can cause video- and backlight-related failures on your TFT monitor.
Fortunately, you can attempt to repair these problems, even if you have no experience fixing a TFT monitor.
The only tool you will need is a Phillips screwdriver, although opening your TFT monitor will likely void its warranty.
Check the brightness settings on the TFT monitor.
There are dedicated adjustment keys on the bottom face of the TFT monitor.
If it is a screen incorporated into the design of a laptop, you'll find monitor adjustment keys on the top row of the laptop's keyboard.
A TFT monitor that has its brightness turned all the way down will appear to be almost completely dark.
Ensure the TFT monitor's power cable is still plugged in, if it is an external monitor. In the case of a laptop, make sure that the power cable is plugged in or that the battery is properly charged.

Disconnect the TFT monitor from the power source. If the TFT monitor is an external model connected to a computer tower, disconnect the video cable as well.

Remove the battery from your computer if you are using a laptop.
This is an important safety measure.
Turn the laptop over and slide the battery release mechanism over.
This mechanism is just below the horizontal outline of the battery on the underside of the laptop.

Remove the screws on the bezel of the TFT monitor.
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Pry up on the bezel gently and remove it.
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Remove the metal brackets on either side of the exposed TFT monitor if the inverter cable fix does not solve your issue.
There will be two to three screws in each bracket that must be removed using your Phillips screwdriver.

Pull the TFT monitor carefully away from the rear casing of the display to reveal the LCD cable. This cable runs from the back of the TFT screen and should be connected to a socket in a similar fashion to the inverter cable. If it is disconnected, lift up on the socket, slide the LCD cable back in, then press down on the LCD socket to lock it back down.
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