Main board is probably bad or the power board is not powering the main board. Common problem with Hisense tvs and their customer service is lacking if under warranty. My hisense chromebook has been dead for almost 2 months...still waiting on a return authorization for warranty repair.
SOURCE: Westinghouse lcd tv ltv-27w2 no picture or sound
power supply first one...second one input hdmi pcb defective..
SOURCE: vizio 47" lcd no picture no sound has power
this could be one of two problem. first, check if you have back light. If you do then the problem is with the M/B. Second, if you don't have back light then the inverter is bad and needs to be replace.
SOURCE: Hisense tv turns on and off
STOP!
The unit has a fault on its power board and sustain board.
It turns off because the sensor is preventing some component from bacoming overheated and catching fire or damaging further components. Seel professional repair.
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SOURCE: My hisense 50 inch lcd tv has picture but no sound.
If you still have back light, then the T-con is probably defective. If you don't have back light, then you either have a bad power board/inverter or a defective panel
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