Question Can you help identify the problem on Hisense 65H9D Plus TV?

Aug 2, 2019
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I have a Hisense 65H9D plus TV and it's behaving oddly. Sometimes after the TV is off (in standby mode), when I try to power it on, either with the remote control or with the power button on the TV, the TV looks like it struggles to come on. There are weird patterns displayed, but it never properly boots up (no logo etc.). Then I can't actually power it off, until I unplug it. After I unplug it, and let it sit for about 30 seconds, I am then able to plug it back in and power on the TV completely normally. Based on my limited research, I'm thinking there is a defective capacitor somewhere on the board, but was wondering if any of you experts may think it's something different with the main board or the power board. Please help. Thank you!
 

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