The ACER AL1706 does not power on and does not light up

There are only a few accessories when the display is disassembled, a power board, a signal board, and an LCD screen.

The LCD screen is rarely broken, my computer is also acer al1706, 05 years bought, I don't know if the power indicator of your monitor is flashing, because I have encountered this situation, no display when turned on, the indicator flashes and flashes, after a 20 minutes or so, it's fine. The reason is that the capacitor on the power strip has exploded, and it is okay to replace the capacitor, a matter of a few cents. In addition, teach you a way to judge whether it is or not, blow hot air (hair dryer) on the power strip for a while, and it's fine.

It should be a power strip problem, and it will only cost about 100 yuan to replace it with a new one.

If so, you should give points for remembering.

I asked the staff at the repair station, and they said that it is possible that the boot temperature of the laptop should be around 10 degrees, and if it is lower than 10 degrees, it will be warmed up before booting.

I've had the same issue as well:

First of all, remove the back cover of the computer, reinsert the memory module, and then use a hair dryer (cold air) to blow the motherboard. Probably a few minutes. Then turn it on and try it again. Same acer, same fault. I've got it done this way, you can try it.

If you think it's violent to disassemble the machine, you can use the hair dryer to blow the CPU fan directly. Use cold air!

If you have a problem with a power board or a high-voltage board, you can find an electronic market for repair, and it can be solved for less than 100 yuan.

If the high voltage is broken, there will be no backlight, so it must be the driver board that is broken!

This kind of image screen is more likely. It should be the power supply fuse of which IC on the screen is open. If you don't have tools, send it for repair.

It's not enough for all of us to discuss,You must test it to know the fault,You can do this: First take the monitor to a professional repair shop (it's best not to go to the home appliance repair place),Let him help you check the fault (no charge),He will tell you the repair according to the reason**,Then you know that the fault and repair costs are too high You can choose not to repair...

If you are sure that it is a display problem, it is recommended that you take the monitor to a professional repair place to have it checked.

Landlord, you have checked the graphics card, if it is no problem with the graphics card, then it is the control circuit of the display single-chip microcomputer problem, it is recommended that you take the monitor to another computer to try it, if it doesn't work, it is really a problem with the display, it may be the single-chip microcomputer desoldering or virtual welding, if the display is still within the warranty period, you can take it to the maintenance point for maintenance, if it is just desoldering or virtual soldering, the maintenance fee is about 15 yuan to 20 yuan.

At the time of '07, the display of acer was packed for three years. Then you can guarantee this until March 10.

Top 10 experiences in LCD TV repair.

1.The background of the LCD screen is green, red or other non-black background, and the screen line is mainly checked. It is generally caused by poor contact between the screen and the wire.

2.The power supply part of the power board is mainly checked, first check whether there is +5V (12V), and then check whether the power supply IC on the motherboard is damaged or has poor contact. It is recommended to use a general power board to test the machine, which can quickly determine whether the power supply part is broken or the motherboard is broken.

3.Electrolytic capacitors of liquid crystal switching power supply require low-order mass loss, high frequency and high temperature resistance, and are easy to heat up with ordinary electrolytic electricity.

4.The screen does not start when the boot appears, and it can only be started after opening it twice in a row, and the main reset potential is working normally, as well as the I2C bus.

5.The buttons do not work, the main check is the connection between the keys on the button board and the motherboard, whether the pull-up resistance of each button is normal, and the CPU button pins are short-circuited to the ground.

6.If the image is abnormal, there are vertical lines, etc., the main check is whether the LVDS socket, LVDS connection cable is normal, DDR memory, and whether the signal strip resistance soldering is good.

7.The menu is abnormal, and the menu is not displayed and crashes, which is generally caused by the program, and the flash can be rewritten.

8.The boot screen will be black when lit, and there is a sound, indicating that the power supply of the high-voltage board is 24V (or 12V), and the backlight boot voltage is 5V. When the protection is on, the general transformer is much worse, followed by the field effect transistor or IC.

9.There is a blurred screen (mosaic) after one hour of booting, and the sound is normal, the first of this phenomenon is that the digital board is bad (the vias are not through or the IC contact is not good); The second is that the connection of the machine is not in good contact.

10.When the screen is lit, observe whether it is partially lit or the whole screen is lit, if it is partially lit, the screen and lamp may be broken, if the whole screen is lit, the fault is found on the high-voltage board.

The monitor tube is broken and can be repaired, dozens to hundreds, depending on the place.

After a few days it didn't light up, I had two monitors, and when I was playing with the big one, the one broke. To fix this, you need to disassemble the case, and if you don't have the tools, you have to take it and ask someone else to fix it. Fifty dollars for repair.

Brand machines generally have common problems (such as Samsung MCU errors will cause undetectable signals), abnormal output caused by poor wave consideration, and abnormal work of the silver head core land line. The capacitor can be replaced early, and the voltage can only be about high capacity, but it cannot be replaced at will in special places.

In fact, you only need to replace the capacitor on it.

According to what you said, it should be a problem with the power strip, but you don't have to go to Acer to fix it, other computer companies should be able to repair it, you have to find someone who is engaged in monitor repair. The power strip may be related to the display model**Generally around 100-300, you find a few more companies that repair the display to ask, don't hang it from a tree.

1.It is more likely that the power strip is faulty, and other reasons cannot be completely ruled out.

2.Any maintenance department can repair the power strip failure, and the 330 repair power strip is indeed too powerful.

3.If you don't go to Acer, the maintenance department with strong technology can repair it.

Don't mess around, it's even worse if the power supply makes you burn. Try to find customer service to deal with it, even 330 yuan is better than going to a private maintenance department to break it, and you don't know that going to a private maintenance department may replace the internal parts for you. Customer service is reputable, and the replacement parts are particularly transparent, it is recommended that you go to customer service to solve, what is customer service for, specializing in after-sales, where is there no reputation for customers, especially some high-end electronic products!

The power switch of the LCD monitor can only be turned on by the cooperation of the driver board and the power board.

The white screen is that the signal simulated by the driver board does not reach the screen through the screen cable.

In this case, it is estimated that the problem of the driver board is relatively large.

Problems with the power supply, there is a micro-short circuit on the power strip.

Oh, it's so serious, it's complicated, why don't you go to the after-sales service.

Play free**bei It seems that Acer's after-sales service is not bad, as long as there is a problem, it will be solved for you, if it doesn't work, you can repair it, you may not be able to do it, and the professional one has a certain certainty.

Check the grounding wire and try it.