20 Most Recent Samsung HU9000 Series UN65HU9000F 65" 4K LED Smart TV 3840x2160, 120 Hz, UHDTV, 3D - Page 9 Questions & Answers


http://www.shopjimmy.com/samsung-bn44-00508a-power-supply-unit.htm

This is the most likely cause of the failure. Compare yours with the picture to check and see if any of the can shaped objects (capacitors) have burst. If they have then just replace the whole board.

Samsung... | Answered on Nov 06, 2019


Where are you finding a 200 volt line?...as there shouldn't be that voltage on any supply voltages, if your seeing this at the LED driver output that is to high and that part of the PS is shutting down most likely due to open lamps in the panel.

Samsung... | Answered on Nov 06, 2019


Hisense actually made several boards that are used by many manufacturers. This may just be a case of the only hisense boards still being available are ones they made for samsung.

Samsung... | Answered on Nov 06, 2019


Did you try the flashlight test?

Samsung... | Answered on Nov 05, 2019


You can't rectify this problem. Contact any qualified one.
http://electronicshelponline.blogspot.com/

Samsung... | Answered on Nov 05, 2019


Hi,
Apart from power supply the main board also has to work for your tv to turn on. You have already replaced the power supply board. So the only thing left is the main board.

Samsung... | Answered on Nov 05, 2019


There are only 2 connectors on that board, the one is for the standard voltages and the other is for the LED drivers, the labeling is a little strange on the one for the LED lamps

Samsung... | Answered on Nov 05, 2019


If you wish to get some details; visit the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
Circuit diagrams of many popular brand TVs and other devices are given.

Samsung... | Answered on Nov 05, 2019


Probable power supply failure

Samsung... | Answered on Nov 05, 2019


If you wish to get some details; visit the site linked here. Pull up older posts.
https://electronicshelponline.blogspot.com/
faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent.
Search the site by type in the "BRAND NAME" of your device; (Exclude the model number), in the "Search box at the top right of the display window of the Homepage" to get gathered related posts/

Samsung... | Answered on Nov 05, 2019


To find out what is going on your going to need to measure the power supply voltages and PSON voltage, start with the 5 volt supply if that is normal then test the PSON voltage it should either be 3 to 5 volt and go to about 1 volt or be close to 1 volt and go to 3 to 5 when you push the power button, if you see that change then test the other voltages. if they are all ok the power board is working ok, Be very careful around the power supply, if your not familiar with testing high DC voltage then take it in and have it repaired as the hot side voltage gets close to 400 volts on some sets.

Samsung... | Answered on Nov 05, 2019

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