Re: Sony kdl-46hx853 no power
So far you have not reported the Voltage readings at the power supply connector as requested.
You said the Voltage readings are OK, so what are they showing? What are the control Voltages showing?
Also show us good clear straight shot pictures of the power supply and the main board so we can easily see the pin labels of the connectors.
"the backlights I really don’t think so bcuz all the voltages was even on every set of wires I tried" That is wrong thinking because you may be seeing the feeding Voltage to the boost converter after backlghts circuit shutdown, not the boosted Voltage for driving the LED strings, there is a proper step to test that when TV is first turned on with meter in place and after the shutdown occur, but that test will be valid only if the BL-ON (and DIM control Voltage) is present and stays present.
So far you have not reported the Voltage readings at the power supply connector as requested.
You said the Voltage readings are OK, so what are they showing? What are the control Voltages showing?
Also show us good clear straight shot pictures of the power supply and the main board so we can easily see the pin labels of the connectors.
"the backlights I really don’t think so bcuz all the voltages was even on every set of wires I tried" That is wrong thinking because you may be seeing the feeding Voltage to the boost converter after backlghts circuit shutdown, not the boosted Voltage for driving the LED strings, there is a proper step to test that when TV is first turned on with meter in place and after the shutdown occur, but that test will be valid only if the BL-ON (and DIM control Voltage) is present and stays present.
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