Question about Sharp 36J-S400 36" TV
The TV was on and while resetting a circuit breaker, I turned off the power to the TV and turned it back on. After that, the TV is only showing a black screen. We see all the menu information but it wont select a cable channel or show any static when on the Air function. It worked fine up to the power on and off situation. What do you think?
Try going into the menu and doing a reprogramming or auto search for channels.
Posted on Sep 16, 2006
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Posted on Jan 02, 2017
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If only power button is blinking then there is a problem only in your power button tube.
This sounds like a problem with the reset in the TV. This is not a reset circuit like you are thinking. It has to do with the micro and relay circuit in the TV. Another way around it would be if you had a cable box. You could hook it up to the cable box and just shut off the box and this would turn off the TV.
Also Unplug the TV and wait for a few minutes....plug back in. Hopefully it'll reset itself. If not, try reprogramming the remote and use that making sure there are good batteries in it.
If nothing works pull the back off and look around for a fuse near where the power cord is connected. It may be a circuit breaker too. Locate but DON'T TOUCH the large black wire going into the side of the tube. Follow it back to the fly back transformer or voltage Tripler. Look for a fuse here on the circuit board. Reason I say don't touch the wire is that it could be charged at about 28,000 volts which is normal for a colour TV. The TV glass and the outer coating forms a capacitor which stores DC current. An open fuse would mean the power supply is not functioning.
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