What can I do if my AOC TV can't start? In fact, there are many reasons why TV can't be started, but in the end it is hard to say what the ultimate answer to TV can't be. The following is a list of possible reasons why ABC TV can't be started by everyone in the HD era. And propose targeted solutions.
1, the TV can not open the machine inside the sound of buzzing
Solution: Too much moisture and too much dust in the interior. The sound is the sound of the electrode sparking. The light can damage the internal components of the TV. It is not recommended. This is a high-voltage package of high-pressure caps produced by the leakage arc ignition fire sounds first high-pressure cap for the first drop off the high pressure cap around the clean and clean can be installed.
2. There is a problem with the plug or socket.
Solution: See if the plug is loose or if the outlet is powered.
3, three no light is not lit (is the sound, light, the map is not and the indicator light is not bright)
This situation is obviously caused by the fact that the television power supply is not working, and the other is that the light does not start. The latter involves more circuits and must have a certain understanding and understanding of the circuit.
Solution: The precondition for the CPU to issue a standby command is that it must have a working voltage of 5V or 3V. This set of voltage is required by the power supply. The first step is to ensure that the CPU operating voltage is available. Most of the protection circuits use the CPU. Standby circuits to achieve protection, we can first clear the standby and protection circuit terminals from the circuit diagram, but also to ensure that these circuits can work in a normal state.
The light switch is the most important point for connecting the internal and external protection circuits of the television power supply. The light switch is externally connected to the power supply or the light-emitting diodes are used for voltage protection. The degree of conduction determines the light-transistors on the other ends of the switch. In most cases, the greater the positive and negative potential difference of the light emitting diode, the lower the output voltage after the power supply voltage regulation. According to this principle, we can think of ways to reduce the positive potential of the light emitting diode or even ground it directly to reduce the power grid. Under the premise of voltage, the internal and external protection circuit of the power supply can be distinguished and judged in a short time.
4, secondary power supply failure or load circuit components are damaged.
Solution: You have the ability to remove, first observe, whether there is obvious damage to the components, measure the secondary power output to distinguish between power supply and load. There is no capacity, only professionals can repair.
1, the TV can not open the machine inside the sound of buzzing
Solution: Too much moisture and too much dust in the interior. The sound is the sound of the electrode sparking. The light can damage the internal components of the TV. It is not recommended. This is a high-voltage package of high-pressure caps produced by the leakage arc ignition fire sounds first high-pressure cap for the first drop off the high pressure cap around the clean and clean can be installed.
2. There is a problem with the plug or socket.
Solution: See if the plug is loose or if the outlet is powered.
3, three no light is not lit (is the sound, light, the map is not and the indicator light is not bright)
This situation is obviously caused by the fact that the television power supply is not working, and the other is that the light does not start. The latter involves more circuits and must have a certain understanding and understanding of the circuit.
Solution: The precondition for the CPU to issue a standby command is that it must have a working voltage of 5V or 3V. This set of voltage is required by the power supply. The first step is to ensure that the CPU operating voltage is available. Most of the protection circuits use the CPU. Standby circuits to achieve protection, we can first clear the standby and protection circuit terminals from the circuit diagram, but also to ensure that these circuits can work in a normal state.
The light switch is the most important point for connecting the internal and external protection circuits of the television power supply. The light switch is externally connected to the power supply or the light-emitting diodes are used for voltage protection. The degree of conduction determines the light-transistors on the other ends of the switch. In most cases, the greater the positive and negative potential difference of the light emitting diode, the lower the output voltage after the power supply voltage regulation. According to this principle, we can think of ways to reduce the positive potential of the light emitting diode or even ground it directly to reduce the power grid. Under the premise of voltage, the internal and external protection circuit of the power supply can be distinguished and judged in a short time.
4, secondary power supply failure or load circuit components are damaged.
Solution: You have the ability to remove, first observe, whether there is obvious damage to the components, measure the secondary power output to distinguish between power supply and load. There is no capacity, only professionals can repair.
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