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The screen has gone dark, cannot adjust darkness or contrast

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Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

Posted on May 12, 2017

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How to adjust contrast


Are you asking because the screen has gone dark?Darkness is a backlight issue,can be the screen backlight,inverter or the cable itself causing it.Screen too bright can be adjusted via personalization or often keyboard shortcuts that have what looks like a sun symbol on them,the left key darkens when pressed and the right brightens

Aug 06, 2014 | HEWLETT-PACKARD HP EliteBook Notebook

1 Answer

Dark, horizontal lines after text and dark images.


This implies that your monitor had gone bad. you need to take it to a computer repair shop.

Apr 10, 2010 | HP w1907 LCD Monitor

1 Answer

Tv picture is too dark- worked with contrast and


This sounds like low screen voltage(A1)try adjusting the a1 voltage bottom control on flyback transformer if you have a voltmeter, voltage on crt base possible market screen or A1 shoud be beteen 350/500 volts when making adjustment remember to take into account current taken by meter If voaltage will not adjust flyback transformer will have to replaced

Mar 06, 2010 | Televison & Video

1 Answer

Cannot read screen - screen dark nocnotrast just


To adjust the contrast, turn the calculator on. Press and release the 2ND key. Press and hold the Up-arrow to increase or the Down-arrow to decrease the contrast.

Feb 14, 2010 | Texas Instruments TI-83 Plus Calculator

1 Answer

The screen has gone dark on my Partner PT5500, where can I


backlight is not available seprately, try to adjust the brightness and contrast and do the reset on monitor,

Feb 09, 2010 | Partner Tech PT-5500 PC Desktop

3 Answers

The screen is too dark to read


See if there is a contrast adjustment somewhere on the laptop first, if not then its a possibility your back light has gone and needs replacing.

Jan 19, 2010 | Acer Aspire 3000 Notebook

1 Answer

While using my gps 12, the screen suddenly went dark with just a narrow border of lit screen. batteries good. I can faintly see the pages behind the dark screen.


it turns out I inadvertently adjusted the screen contrast. This is adjusted by holding the left arrow key down after powering up, until the contrast is corrected. If the screen was completely white, holding the right arrow key down after powering up would bring contrast back into balance.

Nov 28, 2009 | Garmin GPS 12 GPS Receiver

1 Answer

Dim screen man


Try going to your ipod's settings, then into "contrast". There, adjust the contrast and raise the contrast percentage.
Please leave feedback and rate please ^_^

Jun 19, 2009 | Apple iPod nano

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