The backlight is what illuminates the screen, so if it is not working properly, the screen will appear dark. Make sure that the power cord is plugged in securely to the TV and to the outlet. You can also try plugging the TV into a different outlet to see if that makes a difference.

Ok put on the TV and witness the smudges. Put TV in menu mode or something that has a dark background. If you are hooked up to a cable box or satellite turn TV on without box.Tap the smudge spots and see if you see lights behind it.

Given the description of your Microsoft Surface Laptop 3's screen being dark and difficulty adjusting the brightness, could you please confirm if you've attempted to adjust the brightness settings directly through the Settings app, independent of the Action Center (Windows button + …

The top third of the screen is darker than the lower area even though the lower Anthony_Infotech 20+ years experience TV expert (field and bench) 9 approved qualifications in TV-ELECTRONICS

I am sorry to hear that your Samsung TV UN32J4002 has a dark picture. One reason could be incorrect picture settings that affect the brightness and contrast of the screen. You can check and adjust the picture settings by pressing the Menu button on your remote and selecting Picture.

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Customer: 65UH6030 DARK SCREEN WITH NO PIC AND IT HAS SOUND Technician's Assistant: Are there any HDMI cables or A/V jacks (red, yellow, and white cables) plugged into your TV? Customer: not at the moment Technician's Assistant: Was there a …

The bar on the screen is indicative of a faulty panel/screen- and requires replacement of the screen to fix the issue. The average cost of the screen is 80% of what the TV cost when new- and as such is not a cost effective repair.

Samsung model LT-P326W screen has a dark cloud like area near the top 1/3 of the screen after about 1/2 hour of use. Rick williams 20 YEARS OF TV REPAIR ALSO HD, DLP LCD AND PLASMA EXPERIENCE

If the shadow is on person or object on your TV (not black spot or background). Unfortunately, there is an internal hardware issue. Most likely a bad T-con board (hardware). Considering DIY (do it yourself) fix? If so, electronics background, familiarity with the electronics parts, tools and test equipment is needed.