Hi everyone. Yes, another Samsung question. Sorry for those of you that have seen your fair share.
Background: I wanted another project to take some free time up and was looking in the free section of the local internet and saw a posting that said “free tv. Won't turn on.” I went to pick it up and at that point is when I got the word that there was a lightning strike close to the house and it hasn't worked since. At that point I really didn't want the tv but after making the trip and having the guy help me load it in the back of the truck I felt I should just drag it home.
The tv came in the original box with original packaging and appears it was very well taken care of. Now to try to fix it. I've done as much troubleshooting as I can from the internet and now I'm kind of stuck. I don't want to just start throwing parts at it as that can get out of hand quickly.
The tv is a Samsung UN70KU6300F. No picture
What I've checked so far:
When plugged in the standby light continuously flashes. Some troubleshooting I saw they were asking how many flashes. This just flashes constantly.
The fuse on the power board is good. The strange thing is at the power connection on the board I read 121 volts. On the fuse I read 66 volts when using the chassis of the tv or a mounting hole which are electrically the same. One of the videos I watched said the mounting hole was an acceptable ground. Not sure if that's correct or where els to put my ground. Not sure why I'm coming up almost half on such a short run from the receptacle to the fuse.
I disconnected the ribbon cable from the power board to the control board I guess it's called and the backlighting flashes at about a 1 second rate with an audible “relay” sound. I'm not an expert on these or any tv as this is the first one I've tangled with. From what I can tell, all of the backlights seem to flash.
The last thing I've done is go to the output of the power board and measured at the pins using the diagram on the board. Multiple pins are supposed to have 13v, some 0, and some another value. I do not come up with anything close to 13. Most are 0 and the only ones that have voltage fluctuate what looks like between 2.5 and 4.5 volts but fast fluctuations.
My first thought is that the power board probably has a problem due to the voltages on the output. I see nothing that looks like it got hot or disfigured.
What I'm wondering about is the backlighting flashing in the one second interval. I know a lightning strike can cause all kinds of issues. Could the power board cause the flashing issue or am I possibly looking at multiple boards?
I am far from an expert so here I am. Is there anything else I can check? I have a multimeter but no o'scope.
I thought about taking the power board off to get a look at the other side of it but it's the lug style and even after watching a video on removing it I had no luck and quit before I destroyed something.
Thanks in advance for any advice.
Background: I wanted another project to take some free time up and was looking in the free section of the local internet and saw a posting that said “free tv. Won't turn on.” I went to pick it up and at that point is when I got the word that there was a lightning strike close to the house and it hasn't worked since. At that point I really didn't want the tv but after making the trip and having the guy help me load it in the back of the truck I felt I should just drag it home.
The tv came in the original box with original packaging and appears it was very well taken care of. Now to try to fix it. I've done as much troubleshooting as I can from the internet and now I'm kind of stuck. I don't want to just start throwing parts at it as that can get out of hand quickly.
The tv is a Samsung UN70KU6300F. No picture
What I've checked so far:
When plugged in the standby light continuously flashes. Some troubleshooting I saw they were asking how many flashes. This just flashes constantly.
The fuse on the power board is good. The strange thing is at the power connection on the board I read 121 volts. On the fuse I read 66 volts when using the chassis of the tv or a mounting hole which are electrically the same. One of the videos I watched said the mounting hole was an acceptable ground. Not sure if that's correct or where els to put my ground. Not sure why I'm coming up almost half on such a short run from the receptacle to the fuse.
I disconnected the ribbon cable from the power board to the control board I guess it's called and the backlighting flashes at about a 1 second rate with an audible “relay” sound. I'm not an expert on these or any tv as this is the first one I've tangled with. From what I can tell, all of the backlights seem to flash.
The last thing I've done is go to the output of the power board and measured at the pins using the diagram on the board. Multiple pins are supposed to have 13v, some 0, and some another value. I do not come up with anything close to 13. Most are 0 and the only ones that have voltage fluctuate what looks like between 2.5 and 4.5 volts but fast fluctuations.
My first thought is that the power board probably has a problem due to the voltages on the output. I see nothing that looks like it got hot or disfigured.
What I'm wondering about is the backlighting flashing in the one second interval. I know a lightning strike can cause all kinds of issues. Could the power board cause the flashing issue or am I possibly looking at multiple boards?
I am far from an expert so here I am. Is there anything else I can check? I have a multimeter but no o'scope.
I thought about taking the power board off to get a look at the other side of it but it's the lug style and even after watching a video on removing it I had no luck and quit before I destroyed something.
Thanks in advance for any advice.
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