The Panasonic TV suddenly went black after it was turned on, what happened to the black screen of th

Dear users, hello.

The failure of a TV set with a sudden black screen is usually divided into three situations:

One is that the row part is not working;

The second is that the line part is not working normally, which causes X-ray protection or overvoltage, overcurrent protection and excessive current, so that the power supply can not work normally, and the third is that the line part has worked, but the power supply of the line output transformer forms a poor circuit and makes the whole machine show three nothing. If the power supply is normal and the line part is not working, first check whether the collector voltage of the line push tube is normal, and then focus on checking the line output part, usually after determining that the line output tube is normal, the inspection focus should be on the line output transformer and its periphery. If the collector voltage of the row pusher is abnormal, first eliminate the fault of the pusher itself, and then overhaul the row oscillation circuit.

In general, it is common to start an open circuit with a power supply resistor. For the three nos caused by the action of the protection circuit.

What the protective action should be determined should be determined first. The method is to disconnect each protective branch one by one to eliminate it, and then check it separately. For X-ray protection or overvoltage protection, focus on checking whether the line frequency is too low and whether the line counterpath capacitance becomes smaller, and for the overcurrent protection or current overpower, the power supply can not work normally, and the line output transformer and its load circuit should be checked.

As for the situation that the row part has been working and the three are not, it is relatively simple, mainly to check whether the high-voltage, medium-voltage and low-voltage power supply circuits are normal and whether the filament power supply is normal. This is often referred to as a "black screen".

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Summary. Hello, the suggested handling method is as follows:

1、Check whether the power supply of Panasonic TV is turned on,Whether the power switch is turned on,Turn on the power of Panasonic TV,Turn on the switch to solve it。

2. Check whether you have pressed the power button of the remote control to turn off the screen of the Panasonic TV, so that the TV is in standby, and you can press the power button again to solve it.

3、Check whether Panasonic TV detects that there is no signal input and starts black screen protection,You can check whether the signal input connection of the TV is unblocked,Then press the signal source key of the remote control,Switch mode by mode,Such as TV mode、**Mode、HDMI mode, etc。

What's going on with the black screen of the Panasonic TV.

Hello,The suggested handling method is as follows:1、First check whether the power supply of Panasonic TV is connected concealedly,Whether the power switch is turned on,Turn on the power of Panasonic TV,Turn on the switch to solve it。 2. Check whether the power button of the wild stool of the remote control is pressed to turn off the screen of the Panasonic TV, so that the TV is in standby state, and you can press the power button again to solve it.

3、Check whether Panasonic TV detects that there is no signal input and starts black screen protection,You can check whether the signal input connection of the TV is unblocked,Then press the signal source key of the remote control,Switch mode by mode,Such as TV mode、**Mode、HDMI mode, etc。

None of these modes work.

Then you should go to a specialty store for maintenance.

Hello oh,Dear,I'm glad to answer for you,1First check whether the power supply of Panasonic TV is turned on,Whether the power switch is on,Turn on the power of Panasonic TV,Turn on the switch to solve it。 2. Check whether you have pressed the power button of the remote control to turn off the screen of Panasonic TV, so that the TV is in standby, and you can press the power button again to solve it. 3、Check whether Panasonic TV detects that there is no signal input and starts black screen protection,You can first check whether the signal input connection of the TV is unblocked,Then talk about the crack by pressing the signal source key of the remote control,Switch mode by mode,Such as TV mode、**Mode、HDMI mode, etc。

These three situations are not good, that is, the line inside is short-circuited, the model is not linked, and it needs to be closed for maintenance, dear

General treatment method for the black screen of Panasonic plasma TV:

1. First check whether the power supply and mold slag of the TV are turned on, whether the power switch is turned on, turn on the power of the TV, and turn on the switch to solve the problem;

2. Check whether you have pressed the power button of the remote control to turn off the screen of the TV and make the TV in standby mode, you can press the power button again to solve the problem;

3、Check whether the TV detects that there is no signal input and starts the black screen protection,You can check whether the signal input connection of the TV is unblocked,Then by pressing the signal source key of the remote control,Switch mode by mode,Such as TV mode、** mode、HDMI mode, etc.;

4. If there is still a black screen after the above methods are checked, it is generally judged to be a black screen caused by hardware failures such as the motherboard switch circuit or other component failures of the TV, screen failures, etc., and it is recommended to contact the after-sales service of the TV for comprehensive testing and warranty of the TV.