Question about Dell Inspiron 1501 Notebook

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Monitor screen is extremely dark

The monitor screen is extremely dark to almost the point of unable to see any images....

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It sounds like the backlight has gone out. You will need to replace the screen.

Posted on Jul 03, 2008

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Posted on Jan 02, 2017

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I have lenovo g550...my screen flickers in every 5minutes...


Failing Inverter An inverter, typically found inside a laptop computer, consists of a small board, which has impregnated electronic circuits stamped on it. Inverters look like thin boards about the of two sticks of chewing gum. The inverter and its bulb control the intensity of the liquid crystal display, which lights the screen monitor. The computer can control the output voltage of the inverter and either lighten or darken the screen. A special type of inverter can adjust the brightness of the screen by using an internal sensor to judge the room brightness, and then adjust the screen accordingly. Failing inverters give off some specific warning signs, which can be recognized by observing different screen characteristics.

Short Intermittent Display Upon turning on the laptop, the screen flashes on in the normal mode for a short period and then blinks to black. A very faint image appears in a dark background, which will be very hard to see almost invisible. After shutting off the laptop and restarting, the same mode occurs, where the screen appears normal for a few seconds then fades to black. This condition points to a failed inverter. To confirm this, plug in an operational external monitor; if the external monitor functions, the inverter has failed. b> Total Blackout with Ghost image b> The laptop turns on, as indicated by the power supply button, but the screen comes up black. The screen comes up black after restart. You might be able to detect a very dim or ghost-like image on the monitor. When you plug in a known functioning external monitor, the external monitor operates normally. This mode of display indicates a failed inverter. b> Long Term Periodic Operation b> With this failure mode, the laptop screen illuminates normally upon start-up and remains that way after several minutes, hours or even days, until it goes very dark again. Brightness controls or restoration attempts do not work. Most often, the screen will function normally with a computer restart, but will eventually return to black. Faint ghost images might appear, as seen in the total blackout mode. b> Dark With Color Variation b> Upon computer start-up, the monitor shows black or dark gray, accompanied by very faint images. The screen might have an intermittent color change, or remain on with a non-standard color variation, like pink or red. b> Auto Control Switch b> If the screen appears black, with no faint or ghost images, look for the lid switch near the back hinge. The switch, when depressed with a closed lid, shuts off the computer and monitor functions. Sometimes the switch becomes stuck in the closed position, disallowing the computer and monitor to turn on when opened. Pushing the switch manually several times can often free it up. If the switch tab has broken or jammed inside the case, it needs replacing. b> Loose Connection In this mode, the display looks normal upon start-up, but tapping the side case of the computer turns the screen black. More tapping results in the screen functioning normally then cutting out again. This condition points to a loose wire connection from the inverter to the LCD backlight lamp, or the video cable. The connectors can be accessed by removing the monitor bezel screws and pulling the plastic retainer off. Both connectors can be cleaned and refitted.

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1 Answer

Very dark screen in full screen mode


Check the monitors native resolution (you can get it in their website's technical specification area and set the same resolution in your windows resolution.

Jul 22, 2012 | Dell Dimension 8400 PC Desktop

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SanDisk Extreme III 4GB, unable to retrieve the 500 images on it.


SanDisk Extreme cards are supposed to ship with RecoveryPro software which should help you get the photos back. If the software is not on your card you may be able to get it from their website or another SanDisk card.

Mar 27, 2010 | Cameras

1 Answer

Dark LCD screen. Very faint image.


Internally it has a inverter board which go bad sometimes or due to heat sometimes get unpluged.So you will have to open it make sure when you do there is no power going to it.Look at the wires make sure they are snug and try again.
good Luck

Oct 04, 2009 | ViewSonic VA720 17" LCD Flat Panel Monitor

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ACER AL 2017 goes dark after half second of image.


I had the same problem with the same monitor. You could see the image, but extremely faintly. In my case, the problem ended up being the inverter board (Delta DAC-12M033), which I found refurbished on Ebay for $45.00. Takes about 30 minutes and about 15 screws to replace, if you are handy in that department. Just my $0.02 worth. Hope that helps!

Oct 02, 2009 | Acer AL2017 20" LCD Monitor

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Monitor Goes black, or flickers on and off


The high pitch sound is coming from the inverter. It is faulty and needs to be repaired or replaced. The inverter supplies high voltage to the CCFL lamp, this lamp gives the backlight to the LCD so you can see the LCD images.
Check out LCD parts for parts, service and DIY info. use this link :-
www.lcdparts.net

Aug 29, 2009 | ViewSonic OptiQuest Monitor

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Sony a100 distortion dots - Im getting several


If these are single pixels on the LCD screen, they are normal. From pg. 8 of the user's guide:

"The LCD monitor is manufactured using extremely high-precision technology so over 99.99% of the pixels are operational for effective use. However, there may be some tiny black points and/or bright points (white, red, blue or green in color) that constantly appear on the LCD monitor. These points are normal in the manufacturing process and do not affect the images in any way. "

This may also be helpful.

"images may trail across the LCD monitor in a cold location. This is not a malfunction. When turning on the camera in a cold location, the LCD monitor may become temporarily dark. "

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1 Answer

Dark screen with dull image in background


You may need to check your desktop image for your monitor and change it to something lighter
The external monitor usually uses your computer's default and not ncessarily the one from your laptop monitor

Without taking it apart myself, it could be some wiring from the laptop to the screen


Dec 13, 2008 | Computers & Internet

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