Question about Nokia E71 Smartphone

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The screen is dark on my e71; the back light is off

The screen is dark even though I have the display setting at maximum. I am wondering if somehow I need to adjust the backlight; perhaps even turn it on?

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It seems you have a backlight failure. If you can still see the screen on the device (as far as texts and pictures), you would simply need to replace the screen in the device.

Posted on Dec 22, 2008

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Posted on Jan 02, 2017

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You have a bad backlight or inverter. The purpose of the inverter is to turn on the backlight. I suspect it's a bad inverter because that is a common problem on most LCD displays and you mentioned it turns on briefly - the backlight lamp is likely good..

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Whenever my Dell Precision M6300 is ever on maximum brightness, the backlight goes dark after 1-2 seconds. The screen is fully functional, but the backlight simply isn't working. I can get the backlight to...


guess there is an larger issue with your notebook.....
you need to get the backlite changed, if you have chanaged the lite then there is a compatibility issue with the screen and the invertor board that's behind the LCD screen.
or the system is not supplying the correct current to the backlite / invertor board

a HW tech guy may solve your issue

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How old is this thing? Mine is about 4 or 5 years old... junk it!

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Laptop screen is very dark even though harddrive is running fine


There are several reasons this could be happening but lets try adjusting your brightness/contrast settings.

Go to; Start Menu > Control Panel > Power Options
You should see something like this.
http://i298.photobucket.com/albums/mm260/mshockey89/Tech%20Support/Poweroptions.jpg

On the left hand side of the screen select Adjust the Display Brightness. You should see somthing like this.
http://i298.photobucket.com/albums/mm260/mshockey89/Tech%20Support/EditplanSetting.jpg

Now just play with the brightness settings until you get the desired effect.

Also, make sure you don't have the brightness settings too low for your off battery settings. This could be a reason as to why your having this issue. If this doesn't fix the problem, let me know.

Jan 03, 2009 | Dell Inspiron 6000 Notebook

1 Answer

No backlight


A couple things to try:

1st check the backlight settings

Turn on Backlighting and Control Brightness To use your device in dark environments, enable the automatic backlighting feature:
  1. From the Jump screen, press MENU t02003-15.gif then select Settings > Battery & Display.

  2. In the second group box, select the Turn on backlight when using device check box.

  3. Highlight, then select the Brightness slider to open it for editing. Roll the TRACKBALL right to increase brightness; roll the TRACKBALL left to decrease brightness. After you've made the adjustment, press the TRACKBALL to exit edit mode. t02007-55.jpg

  4. Select the length of time you want backlighting to stay on from the Turn off after pop-up menu.

  5. To use the device's light meter while the backlight is on, select the Use ambient light sensor check box.

  6. Press JUMP t02003-14.gif to return to the Jump screen and save your setting.
Now, when you press any button or key, or flip open the screen, backlighting will turn on for the set amount of time. Note that as long as you press a key or button before the set time elapses, the backlight will stay on.
Tips:
  • Even if you have not selected automatic backlighting, you can turn on backlighting at any time by pressing MENU t02003-15.gif + JUMP t02003-14.gif . The backlight will remain on for the time specified in the Backlight Turn off after pop-up menu.

  • When in key guard mode, you can turn on the backlight by pressing the RIGHT SHOULDER t02003-66.gif button.
If it still does not work, then you can try resetting the flex cable to the lcd.

Reseat the SidekickFlex cable

If that doesn't fix it then a new lcd assy will take care of the issue. they run about 45 dollars on ebay.

Sidekick LCD screens

Apr 26, 2008 | T-Mobile Sidekick® 3 Cellular Phone

1 Answer

No picture on screen


Hi,

Initially, this would either be a defective LCD panel or its interface. A way to verify is to play the portable DVD using an external video monitor such as your TV. If still gray or blue screen (no video) even in the TV/monitor, then it would be the video interface/circuitry. If the video is displayed, then it would just be the LCD panel display.

If it turns out to be the LCD display, it is very possible that it is a backlighting issue. Most likely, it would be in the inverter and/or CCF (cold cathode florescent) lamps. This is a relatively easy repair by re-soldering. It is perhaps more of a task to open the panel lid/cover of the LCD display.

This of course would require a fair familiarity of electronic components/circuitry and safety procedures, use of a DVM and a soldering iron. It would be to your added advantage access to a service manual or at the very least a schematic diagram with voltage readings. Should you be uncomfortable performing a DIY (do-it-yourself), perhaps your best bet would then be to seek the services of a qualified professional.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.

Jan 29, 2008 | Polaroid PDV-0701A Portable DVD Player

2 Answers

Nx9010 screen very dark


Hi,

Based on your post/description that the laptop still works using an external monitor, then perhaps what is at fault is your laptop's display. Chances are that it is the CCFLamp (Cold Cathode Florescent) that provides that backlighting or even the inverter that powers it. In some extreme case, it is the LCD display screen itself that is at fault. You can verify that it is the CCFLamp/Inverter by shining a flashlight at the darkened screen while the unit is operating. Some semblance of your desktop would be visible albeit too dark to be of use.

If indeed you have verified that it is the screen backlight that is at fault, it is, from a technical point of view reasonable to repair. Your concern would be local availability of the replacement part, cost of shipping (if otherwise) and local qualified service personnel for the job.

In some areas/regions, cost of repair would not exceed 100USD if it is the CCFLamp and/or the inverter.

Hope that this be of some help/idea. pls post back how things turned up or should you need additional information.

Good luck and kind regards.

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My LCD screen went dark


Well looks like you sussed the problem - no backlight Can it be fixed? -I doubt it, unless it is failry new and warranty comes into play Give the Panasonic website Techincal Support Team a look E-mail the problem

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