Hướng dẫn sửa chữa tivi sam sung mất nguồn 2018 Repairing the samsung tv power off

Hello everyone Today I will show you how to fix the Samsung TV Samsung This is 40F5501AR Currently the TV is out of order Normally when I turn on the TV The warning light must be red But this one is out of red light Now I will turn on the TV and check the cause of power outage Where is the problem Power failure or power failure Now I will turn on the TV and fix it for you After I open the cover Inside the Samsung TV there are some problems First, this is the power supply This power supply supplies all power supplies for the remote control This power supply supplies all devices Such as AV, Internet And handle all audio images This power supply supplies power for the remote control And power for the screen to work And this power supply supplies power for the screen to work This power supply supplies power for the screen to work With the power failure of Samsung TV You have to check this power supply See if there is a power supply What is the power supply Power supply for the remote control The voltage must be about 400V Second, I need to pay attention to the power supply Here is the frequency of the Samsung TV Samsung TV often records the frequency of the power supply For example, 1.13V 2.0V 3.12V 12V PSON 14V The first thing you have to pay attention to If the power is lost like this You have to check the power supply Power supply 5V Usually it is 5V or 3.3V It is the power supply How to find the power supply You have to find You have to find the voltage from 400V 400V is the voltage of the power supply For example, if you turn off the TV For standby The power supply must be activated To maintain the voltage For mobile switch When you turn on the switch It will activate the lock Close the power supply When it is normal We will open the power supplies To see where the power is lost With this display I'll show you You can see This is the power supply That's what it looks like when I open it Now I'm going to check the gauge The gauge This is the reason why the two capacitors are not in the same position The reason is that the two capacitors are not in the same position Now I'm going to find out why The cause of the short circuit is that the capacitors are short Because the two capacitors are connected to a very high voltage The voltage drops to 300V when the TV does not run When the TV runs, the voltage drops to 400V Now I'm going to find out why The reason why this amplifier is slow These two components are slow Because all the main sources Through the input source, the main source, the main source, the main source These two components then split the power to all sources So the circuit of this Samsung It has 3 areas First power supply of the power supply of the power supply of the power supply of the power supply of the power supply