What is the reason why the power indicator of the Philips 19 inch LCD monitor does not light up and

A black screen is a ...... that is more helpless than a blue screenBecause if you don't show anything, you can't figure out where to start. Therefore, we need to judge with various lights. Red, yellow and green.

There are 2 types of black screen phenomena on the monitor:

The first is that the host is booted up and there is a boot**. The monitor power indication is lit and (blue, green) indicates that the monitor is in working order.

The second is that the host is booted and there is no stuck**. The power indicator of the display is on, and (yellow, red) indicates standby status.

Analysis phenomenon: The first one indicates that the host is working normally, and the status indicator display of the display is also working normally. But you just don't see any graphics, it's not ......You see it, it's just it's too dark.

LCD display and brightness can be understood separately. When the transparent LCD screen displays various pixels, the lighting behind it emits a multi-colored light like the sun, and the colors are displayed through the screen. If the light bulb in the back is not lit, you will naturally not see the light.

The general cause of this failure is that the bulb itself is broken (when a person this is unlikely to cause this phenomenon, because it is not a light bulb. If it's a black screen, all bulbs should be broken together. There's really not just one light bulb in there), so the other possibility is that the light bulb is out of power and naturally all goes out.

This is a more common fault of the LCD display, and the high-voltage plate is damaged. Find any electrical repairer who can fix it.

The second is the problem of the host, the problem is that the system boot self-test does not pass. Therefore, it is equivalent to not turning on, and the display is naturally in standby mode if it does not receive a signal.

There are many reasons why the system doesn't boot up.

For example, it is the failure ...... of the graphics cardIf there is a problem with the graphics card, there will naturally be no ** signal. Memory connection, burning, etc. will cause the computer to fail to boot. If you have the ability to use the minimized detection method to do the detection, gradually troubleshoot the hardware failure.

The circuit board is burned, and it may be a high-voltage board.

Take a look at the insurance of the high-voltage plate.

Philips LCD TV power supply can not be turned on,The indicator light is on,This situation occurs because the high-voltage circuit board inlet connector is virtually connected or soldered,You need to re-solder the high-voltage circuit board inlet connector to solve this problem,The specific operation steps are as follows:

1. Take the back case of the LCD TV up.

2. Open the back case of the LCD TV.

3. After opening the back case of the LCD TV, find the high-voltage circuit board.

4. Use an electric soldering iron to re-solder the inlet connector of the high-voltage circuit board.

5. Install the rear shell and the operation is completed.

1. It is more common that the wires connected to the power supply may be damaged or suddenly cut off, which will cause the Philips LCD TV to suddenly go black.

Then the indicator light is not on either. 2. In addition, in the process of TV operation, it may be due to a short circuit or failure in the internal circuit, which is also easy to lead to this situation. 3. In some cases, there is a problem with the display, and the black screen will appear if it cannot be used normally.

Suggested solution:1、First of all, you need to check whether the power supply has been cut off,If the power cord is damaged or the contact is poor,It is recommended to unplug the power supply first,Replace the power cord in time,Or change a new socket,So that you can solve this problem by turning the TV back on。 2、The circuit of the TV used for a long time may have a short circuit or failure,At this time, it is not recommended to solve it yourself,You need to contact the after-sales service personnel of the Philips manufacturer in time,After explaining the specific problem, professional maintenance personnel will generally be arranged to come to the door for maintenance,After checking the problem, the TV can be repaired and replaced in a timely manner。

3. If the indicator light does not light up and the black screen is caused by the failure of the display, it also needs to be repaired under the operation of professionals.

Hello dear and happy to answer your <>

Find out why the power light of your Philips monitor doesn't show up. 1.This is most likely caused by a blown fuse in the monitor.

2.It is also possible that there is a liquid cracking fault with poor contact between the display light control buried system module and the power-off electrode of the display board. 3.

It is also possible that there is a problem with the high-voltage circuit that causes the power supply of the Philips monitor to stay on and not display. 4.Or the lamp of the monitor is damaged, which can also cause this problem.

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Philips LCD TV power supply can not be turned on,The indicator light is on,This situation occurs because the high-voltage circuit board inlet connector is virtually connected or soldered,You need to re-solder the high-voltage circuit board inlet connector to solve this problem,The specific operation steps are as follows:

1. Take the back case of the LCD TV up.

2. Open the back case of the LCD TV.

3. After opening the back case of the LCD TV, find the high-voltage circuit board.

4. Use an electric soldering iron to re-solder the inlet connector of the high-voltage circuit board.

5. Install the rear shell and the operation is completed.

Kiss. Hello. This Philips LCD TV power supply can't be turned on,The indicator light is on,This situation occurs because the high-voltage circuit board inlet connector is virtually connected or soldered,You need to re-solder the high-voltage circuit board inlet connector to solve this problem,The specific operation steps are as follows:

1. Take the back case of the LCD TV up.

Hello, you can go to the znds forum to ask about the situation.

It should be that the capacitor is broken, and it should be repaired in a professional repair shop.