Question about Compaq Presario Notebook

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Charger makes my screen dark

When i plug in my charger into my laptop it goes dark but when i take it out it goes light again can u please help i have a gateway laptop

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Usually if you have this problem you need to replace the battery. Did you experience a cellphone screen have rainbow this is a cause of over charge. So i think you laptop are over charge and the battery become faulty. You need to replace the battery remember that if that battery is too hot it will affect also some part of your laptop specially the processor. Make sure that the CPU fun is spinning otherwise it will cause also overheating. So replace the battery and don't leave the laptop charging it will over charge that the cause of dark screen also.

nicoleFIXIT

Posted on Oct 03, 2009

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GO into the control panel and check your power settings. You might have it set to use less power when plugged in.

Posted on Oct 03, 2009

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Hey Lea,
Try the steps below to see if they will resolve this issue that you are having with your computer. If this does resolve the issue you can email me. My email address is listed below in my sigfile.

1) UNPLUG THE LAPTOP
2) REMOVE THE BATTERY
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Laptop toshiba satellite p200 bw5 screen goes dark as if darkness/brightness was adjusted - but not Thanks


An LCD screen cannot produce enough light by itself. It needs a Backlight to help illuminate the screen.

Power for the Backlight is produced by an Inverter. An Inverter also provides power for the LCD screen.
It reduces voltage for the Backlight, and increases Voltage for the LCD screen, from the laptop's power.

Most of the time a dark LCD screen can be attributed directly to a bad Inverter. (Around 90 percent)

A Backlight is a CCFL.
Cold Cathode Fluorescent Light.
VERY similar to the fluorescent lights you see used in residential, and commercial applications.
(Homes, and businesses)
Only on a MUCH smaller scale in physical size, and needed power to operate.
When a Backlight goes bad, it just goes all at once. Not goes dark as you have stated.

(Your statement meant to me that you power on the laptop, the LCD screen shows well, then goes dark)

How to install an Inverter in a Toshiba Satellite P200 series laptop,

http://www.irisvista.com/tech/laptops/toshiba-satellite-p205/take-apart-display-panel-1.htm

(You can click on each individual photo to enlarge. You are on Page 1. Page 2 is accessed at the bottom, by clicking on it. Page 1::Page 2::Find another model)

Just one of many places that offers an Inverter for your Satellite P200.

http://www.notebooksolutions.ca/zc/index.php?main_page=product_info&products_id=5367&zenid=43bc1e775a9ed2d4309140111231cab5

NOTE*
1) ALL power removed from the laptop before beginning.
AC adapter (Charger), and Battery.

2) The screws you will remove, may have screws that look alike, but are NOT.
Do Not mix them up.
For this reason it is suggested to use a multi-compartment container, and label the compartments for where the screws came out of.
You can use a clean egg container, and label the individual egg holders, in a pinch.

IMHO it isn't hard to perform this repair, and you can do it. Save yourself money.

For additional questions regarding this, or comments, please post in a Comment.

Regards,
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I have a CF-29 with a touchscreen, and the screen just went extremely dark. I can just faintly see the desktop. Using the Fn/F1/F2/F3 makes no difference.


Hi

Thank you for your query

The problem you are experiencing is a fairly common problem with laptops, it would seem that if plugging the charger back in doesnt make any difference then the screen inverter will need to be replaced

Please plug in the charger to see if this makes any difference and if not you will need to book the toughbook in for replacement of the inverter


If this has been useful please leave postive feedback/vote/testimonial - Thank You Again - shauqatm@yahoo.co.uk

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Thank you for using
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Can you check the charger is outputing the correct amount of voltage, (power surge maybe)

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Screen darkens when i plug my charger i


remove your battery then place new battery

Feb 19, 2009 | Compaq Presario Notebook

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