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Re: Mmitsubishi TV Blank screen
Check the video in sockets on the TV. Some do actually have two, usually one at the back and the other on the front or side of the set.
When new they tend to be a little tight and people usually resort to twisting the plug to remove it. This can often twist the cable off the video in socket inside the TV.
Make sure the set is switched off and remove the back. Take a look at the cable running to the video in socket and see if it's connected. If not then simply resolder it back on.
It may not be the cure but always look for the easy way first.
Not easily, unless you can provide more detailed troubleshooting data.
What test equipment do you have and know how to use???
If you can "assist" with the troubleshooting I am certain that you can recieve repair suggestions.
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Oct 19, 2014 - Uploaded by EurekaRecycler
SEIKI Tv SC501TS has audio but no video, repair ... LCD & LED TV Repair - No Image & Blank Black Screen Flashlight Test - How to Fix LCD ...
This is an older picture-tube projection TV.
There are just a few things that can affect all three color tubes at the same time. One of these is "Blanking" and the other is the High Voltage.
Blanking happens when there is not a good signal to the TV, and the high voltage and therefore picture are shut off to protect the high voltage system. Make sure there is a good, strong signal to test it from, like a DVD player, otherwise the TV could blank off from low signal levels. A signal good enough to produce sound may not be good enough to keep the picture on, so that is not a good indication of good signal.
The other, High Voltage, is complicated and dangerous to work on and best left to a qualified technician to work on. High voltage in a TV can hurt or even kill you if you get across it.
particularly that is a sign of leaking of high voltage in the secondary power supply or flyback transformer and should be corrected right away..check for emission of odor smell of ozone which is coming from high voltage leaks to make sure that it is definitely a high voltage leak...
Sounds like you have lost video somewhere in the video circuits. Possibly the picture tube could have gone bad or lost filiament voltage. You can check to see if you have high voltage by holding your bare arm close to the screen. The hairs will stand up if you have high voltage. Absence of high voltage will also cause a black screen,but the sound might not work either since on some sets the power for the sound is supplied from the same circuit as the high voltage.
Sounds like you lost your High Voltage Power source which lights up your screen. If you don't know anything about TV's do not attempt to fix this problem. The High Voltage Power Supply is around 40,000 Volts!
There is a problem with your high voltage circuit. This circuit controls the width and scanning of your TV. I recommend finding a reputable TV repair person. If the TV is older I recommend buying a new one. Sorry. It's a video problem not an audio one.