Samsung T220 monitor after powering on, the touch screen light does not light up, and it can t be tu

Hello dear Samsung users:

Based on your description, it is recommended that you:

1.Check the connections at both ends of the power cord, and check the connections of the power adapter for some models.

2.Check if the voltage in your home is normal. (Such as:.)

Whether other electrical appliances in the home can be used normally. )3.If the problem persists through the above methods, please bring the purchase invoice, repair card and machine to the Samsung service center, and the engineer will inspect the machine and deal with it.

Comments, suggestions, complaints, please click:

Only sent for repair, the preliminary estimate is that the power board and the driver board are problems.

There are usually four reasons for the failure of display buttons: 1. The keys have not been operated for a long time, and their internal contacts are oxidized, resulting in excessive contact resistance; 2. The car imitates the poor contact caused by the desoldering of the solder joints or the loosening of the connection and connectors; 3. The inside of the key or the key board is defaced, and there is a leakage point; 4. There is an error in the control program inside the display. Workaround:

For the first reason, you can try to press the button that has failed many times (be careful not to use too much force) to make the switch contact move frequently, promote the wear of the oxide layer, and improve the contact with the closed chain fiber. The last 3 causes usually need to be sent for repair to solve the problem, especially the fourth case must be solved by a professional (of course, this is relatively rare).

Check whether the cable between the monitor and the main unit is loose.

Or if the fault is caused by poor hardware contact, it is recommended to perform the following operations:

1. Turn off the power, open the case, clean up the dust, especially the dust of the CPU fan, and check whether the CPU fan is rotating normally. Plug and unplug the hard drive data cable and power cable (this is more important).

2. Power off, open the chassis, plug and unplug the memory, wipe the gold finger part with an eraser, and plug it back in (don't reverse it).

3. Plug and unplug the graphics card, wipe the gold finger part with an eraser, and reinsert it tightly (the buckle should be buckled).

4. Unplug the power cord, cut off the motherboard button battery, wait for three minutes, and then reinstall the motherboard.

5. If the above operations cannot solve the problem, it is recommended to send it to the maintenance center.

1.Connect the original charger to charge for a period of time and then try to turn it on to check whether it is caused by insufficient battery power.

3.Try again after removing the SIM card or SD card.

If it still cannot be opened after the above operations, please bring the purchase invoice, warranty card and mobile phone to the local Samsung service center, and a professional engineer will help you handle it.

I want to replace it with a new one, and throw away the old one.

I just repaired a Xicha loss hope to be able to do the same problem as Zi did not tease you, if it helps you, please give a good review.

You unplug the screen cable first, if you can turn on and off the machine normally, sell it.

The backlight of the screen is on, congratulations.

The screen is short-circuited. (The small capacitor on the bottom of the screen chip is just replaced for a short time) When I repaired it first, I thought it was the MCU program that was broken, but it was still the same after brushing. The last thing to judge is the short circuit of the screen.

I hope it will help you, if you don't have maintenance experience, you don't want to try to maintain it yourself, because under that capacitor is the cable of the screen, you must pay attention to it when repairing.