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My packard bell lcd monitor shows orange then sometimes green light but has totally black screen. If power supply giving insufficient voltage would this cause above problem?

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> insufficient voltage cause ?

Well, anything is possible, but other things are more likely:

1. loose connections of the "data" cable between the monitor and the computer's video-card;

2. an electrical "short" in the data-cable;

3. a "dying" video-card.

So, try the "free" stuff first:

Check the connections.
Try a different cable.
Try connecting the monitor to a different computer (laptop?).
Try connecting a different monitor to your computer's video-card.

Then, consider buying & installing a new video-card.

Posted on Nov 18, 2009

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I have a TJ68 packard bell Easynote laptop, it will power up, but display screen is black and flickers. I connect a vga cable to an external monitor and can see contents of laptop on external monitor.


The fact that you can see the desktop on the external monitor means your LCD Inverter on the laptop is bad. The video card in the laptop is good, otherwise you would not be able to see the desktop on either screen.

Shine a flashlight on the dark screen to see if you barely see the icons on the desktop. If so, then the LCD Inverter is bad.

Plug in an external monitor and see if the display shows up on it. It can be any kind of monitor even the old big fat crt monitors as long as it has a vga cable to connect to your computer's vga port. If so that proves your video card is ok. The video will show on most systems when you reboot without you having to do anything. Some systems will require you to hit the FN (Function key) + F1 thru F12. Hold down the FN key then hit the correct key for displaying on the monitor (F1 thru F12). The correct key will normally have CRT/LCD on it or it will have the icon of a display.

If you see no icons by shinning a flash light and the external monitor works, then your screen is bad. If you see no icons by shinning the flash light and nothing shows on the external monitor, then most likely your video card is bad.


The lcd inverter can be purchased on ebay for less than $15. It is located at the bottom of the lcd screen. You'll have to remove the plastic strip that is around the lcd screen by removing the plastic or rubber bumpers that have screws under them. Normally there will be bumpers at each corner and maybe along the insides on the plastic strip. Remove the bumpers, the screws and pry the plastic strip off with a little force with your fingers. You will then see the lcd inverter at the bottom of the lcd screen.

Just put your computer's name and model in the ebay search followed by lcd inverter.

Actually it looks like your laptop uses the LED screen instead of LCD so it will not have the LCD Inverter. You will have to purchase a new screen. I found the one below on ebay.

http://www.ebay.com/itm/Packard-Bell-EasyNote-TJ68-AU-065UK-LAPTOP-LED-LCD-SCREEN-/400293582889?pt=US_Laptop_Screens_LCD_Panels&hash=item5d335b5829

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Sir,
You are suggested to check if you serial cable is in fine condition and it properly pluged into the Monitor and VGA. and do also try changing the serial cable .

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Well since you seem to have tried a bunch of thing why nor go a bit more and replace your video card. Below is a link to your PC:
http://support.packardbell.com/uk/item/index.php?pn=P280110001&g=1400

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Monitor going black after a few seconds can be causd by a faulty power supply or inverter. Some monitors have both as one unit.
Sometimes it is basic failed capacitors, After that then I would look at transistors.
The average monitor from 17 to 20 and sometimes the 22s have usually 4 bulbs in them. One bad bulb will also cause the inverter to not fire up.
Bad bulbs usually show pinkish tint, or flickering or are dark at center top or bottom of the display.
ebays bammbammfran

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