It looks like TVSS (Transient Voltage Surge Suppression) device, probably spark gap. I should show as open circuit (infinite resistance).
What is this Samsung board for? P/N BN44-XXXXX???
Show us the whole board both top and bottom sides.
It is connected in parallel with winding of the line filter LX801, you need to lift one leg off the board and measure it again. What is the board not doing? TV model number?
I believe what I have is also a Surge Absorber but I don't know enough about it to identify it. It has Orange, Yellow and a Blue colored band. And on the board it is marked "SA801S". It is burnt. The leg on the left is gone. This is from a Samsung UN50H5203AF. Sure looks like it got hit by lightning. I want to replace this and I have to resolder burnt connections on the bottom of the board, burnt in 2 places and the fuse is still good. I think this board is a bad design because the fuse should have blown.
"I think this board is a bad design because the fuse should have blown." It depends on how that part is connected in the circuit.
Can we see the bottom side of the board?
I would not worry about that part right now, you can remove it since it is not needed for the circuit to function, I would worry if the board is working or not, and if it has other damaged parts or not.
OK, that makes sense. I will resolder the bottom of the board tomorrow and give it a try. The TV has power but will not turn on. When I switch out the power supply it works fine. Then I looked at the board and seen all the burns.
That is correct. The burn mark on the bottom of the board is the coil and the SA801S is burnt on the top of the board. Here is a picture with SA801S marked from the bottom. I will fix that burn mark tomorrow and see if it fixes the problem of the TV not turning on.
That burnt pin on the coil is more likely due to bad solder joints, I would inspect and re-solder all those components pins. You have lots bad solder joint on those coil legs, especially the ones that soldered through the through hole rivets. You can see ring/crack around the pins, also some of them are heated up due to bad joints.
The SA is connected in parallel with the line filter inductor. There is no sign of arcing for that SA on the bottom side but the top side has arcing mark, I wonder if someone else accidentally grounded that top lead to the chassis.
Board part # is BN44-00772A. A friend of mine asked me to fix this TV. He said his wall receptacle has a short in it. I am not sure if that caused this or not but I do not think he opened the TV because he doesn't even know what a soldering iron is.
I resoldered the board and still not working. The large cap has 390VDC
Well, at least the PFC boosted Voltage is working, which mean the main board is getting the Voltage to run and sending out the PS-ON to turn on the rest of the power supply.
So what DCV do you have on the connector CNM803 when TV is OFF and when TV power switch is activated?
Pictures provided by shopjimmy.
Samsung BN44-00772A http://www.shopjimmy.com/samsung-bn4...led-board.htm#
Your thumbnail has severe Beau's lines, this indicates synonym of uncontrolled diabetes, circulatory diseases, such as peripheral artery disease or heart attack, high fever, pneumonia, scarlet fever, mumps or measles, low blood pressure, low calcium levels, malnutrition, shock and surgery, In my case was low calcium levels,The time of event may be determined from the location of the lines on nail, it shows happened 3 times this year, recently Beau's line about one mouth ago........Dont work too hard.......
WOW, no doctor has a clue why my fingernails look that way. So I am pretty healthy as far as my heart and diabetes so it must be calcium or vitamin deficiency. I thought maybe my nails were this way because I worked with Asphalt for 23 years but no doctor has a clue. I will take a multi-vitamin every day to see if it clears up. And I am going to show this article to my Doctor.
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