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If the picture mode is set to Cinema or Custom, the screen could become dark. If the screen is still dark after the picture quality mode has been changed, change the setting Backlight, Picture, Brightness and adjust the brightness to your taste. ... Depending on such settings, the picture brightness level can be higher or lower
It appears that you inverter has gone out. Though you can try to use the Function Keys to see if brightness increases, but typically that invertor goes out after several years.
Hi, Don't put screen in direct sun light or bright light. Bright lights will destroy LCD screen. The LCD screen has some adjustments on back. You might be able to readjust picture brightness.
Good luck.
wrong graphics driver .........if it worked well earlier do a restore..............
just type restore in the run box
and look for the blue screen icon.....
restore to an earlier time....
cheers
check the high voltage with the screen control turned up high where there is no raster. suspect problem within the video circuit where there is no high voltage or defective picture tube.some time when the screen is black and the screen control advanced,you can see if the tv has video or vertical or horizontal problems on the screen.service the high voltage circuit if there is no raster or high voltage is seen.no raster can be caused by the no heater or filament in the CRT.----
a defective picture tube can cause many problems, such as, poor brightness ,missing colors,intermittent picture,poor focus,a single-colored raster,arching in the gun assembly,retrace lines in the picture,negative picture,chassis shutdown,noheater or filament lit and no raster to name a few.an open filament or heater can cause no picture or no raster symptom.a defective CRT can have an extremely bright screen.loose particles of the cathode element can lodge between the grids and cause an intermittent black and white picture. simply tap the ends of the CRT gun assembly and notice if the picture begins to flash off and on.----
with a leaky picture tube after turn on the raster dims and get extremely bright.a dim picture with no green in the raster can result from a bad green assembly. a heater-to-cathode short can cause a raster to change colour or a result in no raster at all.replace the picture tube if there is severe arching in the neck of CRT.
excessive brightness with retrace lines and a vertical collapse to a thin line can be caused by a bad coil on the neck board of the picture tube.rejuvenate the picture tube when there is very bright green screen.
check for the resistance change on the resistors of the CRT neck board for an excessively bright picture with retrace lines.excessive dust inside the CRT spark gaps within the picture tube socket can cause the very bright raster and the chassis shutdown.a defective video amp,luminance buffer,or reference transistor can cause a bright picture with retrace lines.
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for getting any required parts to replace you can get it from
www.radioshack.com
or from
www.partstore.com
or from
www.shopjimmy.com
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thanks.please do rate the solution.thank you for using fixya.keep updated.
It looks like the LCD backlight malfunction. Check the backlight voltage, if you have the voltage there, you need to replace the LCD unit, otherwise the main board is defective.
Yeah, You Can Clean The Games With Q-tips And Rubbing Alcohol Via The Bottom Of The Game Cartridge. Its A lot Like The Original Nes The Cartridges Get Really Dirty And Stop Making Contact.
What you have described is the brightness control being actived all the time. Did you spill any liquid in to it? You may try cleaning it with alcohol and a cotton swab on the inside too! Be carefull it you open it up.
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