TV hasAudio but no video
My TV has audio but no video
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@robinsiamro6995 not a lot of information here. We would need to know the exact model for your TV. It would also be nice to know what you have checked.
Turn the TV to a channel where you can hear the sound. Next, use a flashlight and shine the beam at an angle against the screen. Do that in a darkened room. See if you can make out shadows or shapes. If you do, then it is your backlight that has failed. If you do not see anything, unplug your set and remove the back cover. Then visually check the boards for any obvious damaged components. Check all the wiring and unplug the wires and plug them back in, make sure they are properly seated. Post some images of all of your boards with your question. Use this guide Adding images to an existing question for that so we can see what you see. It is possible that this is either a power board or a T-con board issue.
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With a TV this old it's often a problem with burned out LEDs, especially if the brightness control setting has been left at 100% for a long time. To find out if this is the problem, turn on the TV and select a channel where you can hear the audio. Take a flashlight and hold it close to the screen. See if you can detect any part of the image. You may need to be patient and move the flashlight around. If you can detect the image it means that either the TV backlight is burned out or one of the circuit cards that provide voltage to the backlight has failed. In my experience it's usually the LEDs that have failed. This doesn't mean that they have all failed though. There are several strips of LEDs, with maybe 6 or 8 LEDs per strip. Each strip is connected in series to other strips using plug-in connectors, so there is no soldering involved in replacing LED strips. Usually if one LED fails on a strip, the whole strip will fail to light. If enough strips fail the TV stops delivering power altogether to the LEDs. The good news is that it is possible to buy full sets of LED strips for particular TVs on Ebay and it's a very common problem that TV repair shops are familiar with.
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Po odłączeniu jednej taśmy łączącej ekran połowa ekranu działa
by Robert Spyra
@robertspyra Could be an issues with the T-con board but it could also be caused by failed buffer boards. That are the long skinny circuit board that connect directly to the screen.
@robertspyra Może to być problem z płytką T-con, ale może to być również spowodowane uszkodzeniem płytek buforowych. Są to długie, wąskie płytki drukowane, które są podłączone bezpośrednio do ekranu.
by oldturkey03
With audio no video
by Noel Torres
@noeltorres30833 what have you checked?
by oldturkey03
في صوت
لاكن الصورة خفيف جدا
by HASSAN Al-Dabini
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