There is a strange problem with the BenQ display

There may be 3 aspects to judge:

1.Graphics card issues.

Replug it in, clean the gold finger, and see if the fan is normal.

If it doesn't work again, it will be replaced free of charge during the warranty period).

2.Cable problem (replugging, checking VGA or DVI interface) 3Display issues (Check if the electrical outlet is powered on.) If it's convenient, connect it to other computers to see if it's normal).

It's not possible to restore with one click. If you don't have a system disc ready, the optical drive can be used. Start the computer and press the DEL key, set it to a disc boot in the BIOS, insert the system disk and reboot, basically complete it automatically according to the steps.

Unplug the cable first,If it doesn't work,Change the host,If it doesn't work,Then go into the BIOS and take a look,If that's the case,It's the display is broken.,Send it for repair.。 If you don't have an invoice, you can also see the factory time warranty.

Hello, if your product fails, it is recommended that you contact BenQ authorized service outlets, and professional engineers will test and deal with them for you, please check the service network information: BenQ China - Service Support - Information Inquiry - Service Outlets - Select the specific product type, province and city, click on the query.

You can let the monitor adjust automatically, and if it doesn't work, you can update the graphics driver.

Display adjustment problem: You may have pressed the wrong button on the monitor, just turn it back to the layout.

Not a big deal.

The solution to BenQ's monitor overclocking is as follows.

Solutions for overclocking your monitor.

There is an error prompt on the display: it is out of the working frequency range, caused by many situations, and Liang Nachang needs to be treated separately and take necessary measures according to the specific situation (nothing more than the resolution and refresh rate have been tampered with, which is beyond the tolerance range of the display).

1. Modifying the resolution without authorization will usually cause the display to make an error and pop up: a prompt that exceeds the working frequency range.

2. At this time, do not move any settings, the system will automatically return to the previous resolution without the user confirming the operation.

3. If you can still enter the operating system, then enter it in the run: OK, open the settings item for setting the resolution and return to the resolution suitable for the current display (usually down).

4. There is also a situation where the user modifies the refresh rate (up) without permission, which will also cause the display screen to appear: beyond the working frequency range'Prompt. Adjustment method: Advanced setting of the monitor screen refresh rate 60 OK.

5. If it suddenly appears in the middle of playing a game: a prompt that is out of the working frequency range, you can use the game's settings to adjust it back to Properties.

6. General set the startup options.

7. If there is already a parameter in the startup options, delete it. Add it again (with a space in between): freq 60 OK.

8. If it is displayed after restarting the computer: the prompt that exceeds the working frequency range. Then press and hold the power button for the first time, turn off the computer, then press the power button, restart, press the F8 key immediately, and use the up and down keys to select:

Enable VGA mode (usually found in the boot management menu of the Windows XP operating system).

9. If you don't enable the VGA mode menu (such as Windows 7 operating system), you can try to enter the safe mode, uninstall the existing graphics card driver, restart the computer system will automatically recognize, reinstall the graphics card driver, and the resolution and refresh rate are correct at this time.

10. If you can't even enter the safe mode, then you can only use the U disk PE system or install the CD to repair, restore and reinstall the system.

11. If even reinstalling the system can't solve this problem, then there must be a problem with the graphics card hardware. There is also a possibility that the power supply and monitor socket are not plugged in properly, and you can just plug it in again.

Why does the boot display prompt "no signal detected" - the host does not start normally, first empty the CMOS to try, if it doesn't work, remove all external equipment, only keep the motherboard, CPU, memory, graphics card, power supply, see if it can be turned on, as long as the display has a display, it means that these 5 basic are normal, if you can't replace the test machine one by one, which one can be replaced to turn on, it means that the one that is replaced is bad, if you can't find the replacement of spare parts, only send it to the repair shop.

It's only been half a year, and it may not be possible to replace it with new parts, but it should be able to be repaired for free.

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

If not, it may be a malfunction caused by poor hardware contact.

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.

2. Plug and unplug the memory, wipe the gold finger part with an eraser, and re-insert it (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.

Hello, if the monitor prompts this message, it may be caused by the abnormality of your host graphics card or data connection cable, you can try to change the data cable or the host of the main computer to confirm.

Two possibilities.

1) Poor contact of the display data cable. In addition, the computer has been used for a long time, and the power cord of the monitor is easy to oxidize and break;

2) Poor contact or damage to the graphics card;

This is usually caused by the signal cable from the monitor to the host computer not being properly connected, or the graphics card is faulty.

It should be a broken monitor! BenQ monitors have a one-year warranty!

Note: The monitor does not detect the input signal, and there is no signal to show the possible reasons for the automatic entry into energy saving

1. The computer is in the initialization state of boot and does not send a signal - > can wait for a while 2. The signal line is loose, and the signal cannot be transmitted -> re-plug and unplug and try 3. The host does not send the display signal normally -> can be connected to other hosts or laptops to eliminate the problem of the monitor.

4. The host sets the resolution beyond the range that the monitor can display - > enters the safe mode and adjusts the display resolution.

5. The display selection signal does not match, for example, the access is VGA interface, and the display selection input is DVI input - >select the input option of the access signal interface matching in the display menu.

1. First of all, unplug the signal cable of the monitor from the computer host, see what is displayed on the monitor, if there is a display on the display "no signal", it means that the display is good.

2. On the contrary, the problem lies in the graphics card. If nothing is displayed, the monitor may be broken.

3. If there is no problem with the display, check whether the CPU fan is running, if it is running, use a multimeter to measure whether the voltage output is normal to 12V, 15V, if it is not normal, you can change a power supply to give it a try.

The power strip generally outputs two sets of voltages, one group is more than 12V, one is 5V, and some have it.

Since you can measure the voltage, you should be able to judge that the power board is good, then pressing the power button does not respond should be the fault of the driver board, you can measure whether the keys on the button board have voltage.

Is the display bright? If the display is on, then the light is broken. If the display screen is not on, and the light is not on, then the bad thing is not certain, it may be the power supply, it may also be the motherboard, etc., it is recommended to send it to the service network to see.

Take a look at the power cord that connects to your monitor! Unplug it and plug it in!

If the display frequently appears with the words "Auto adjusting", it usually means that the monitor itself is malfunctioning.

This problem is common with displays that have been in use for a long time. This is because the control buttons of the OSD menu of the display are not used in the matrix scanning method, but in the voltage judgment method. In order to avoid interference in the surrounding environment, a ceramic capacitor is soldered to the signal sampling end of the MCU.

After a few years of use, the ceramic capacitor will age and leak when the humidity of the surrounding environment is too large, resulting in inaccurate or drifting of the sampling voltage of the MCU, and the above phenomenon will occur.

This kind of troubleshooting requires understanding some circuits, finding out the anti-interference capacitance in the MCU key sampling circuit, and soldering this capacitor with a soldering iron.

Damn, it's good to change the key, say so much nonsense.

1. First of all, unplug the signal cable of the monitor from the computer host, see what is displayed on the monitor, if there is a display on the display "no signal", it means that the display is good.

2. On the contrary, the problem lies in the graphics card. If nothing is displayed, the monitor may be broken.

3. If there is no problem with the display, check whether the CPU fan is running, if it is running, use a multimeter to measure whether the voltage output is normal to 12V, 15V, if it is not normal, you can change a power supply to give it a try.

Take a look at the power cord that connects to your monitor! Unplug it and plug it in!

There are many reasons for the failure of the computer to turn on the black screen, such as the display is damaged, the motherboard is damaged, the graphics card is damaged, the graphics card is in poor contact, the power supply is damaged, the CPU is damaged, etc. For the treatment of the black screen of the computer, the method of eliminating and replacing is basically adopted, and the principle should be based on replacing and eliminating the most suspicious parts first.

1.Unplug the data cable connected to the monitor and the console, and turn on the power switch of the monitor separately. Generally, if the display is normal, it will display the manufacturer's information of the display or a prompt that the monitor is not connected, if it can be displayed normally, it indicates that the display is unlikely to be damaged.

2.Check that the exposure is good. You can check whether the contact between the graphics card and the monitor is good, and whether the contact between the graphics card and the motherboard IO slot is good, if necessary, you can remove it to clean the dust and reinstall it again to ensure that the installation is in place and the contact is good.

3.If the black screen still appears, take out the components installed in the computer, leaving only the CPU, graphics card, and memory sticks, and the cause of the fault can be limited to the CPU, motherboard, and memory. Generally, if there is a fault in the memory, there should be an alarm sound.

If the memory fault is ruled out, only the CPU and the motherboard are left.

1.There is no CRT in the LCD.

2.The reason may be that the internal power board filter capacitor or the high-voltage board transformer is damaged, resulting in insufficient power supply, and after a period of time after turning on the machine, it will be normal due to the preheating of the components, and sometimes it needs to be turned on several times before it can be turned on.

3.The maintenance method is to open the shell, check if there is a capacitor explosion inside, and replace it after finding it.

4.If you don't know how to repair, take it for repair, repair about 50 yuan, and replace the board for more than 100 yuan.

Take the BenQ LCD monitor to other machines to try to see if it is displayed normally, or if it cannot be displayed normally, it means that there is a problem with your monitor, so you can only take it to a repair shop.

It may be that there is a problem with the row of the monitor, you can look down from the top of the monitor, or lay the monitor flat to see if you can see the display. If you can see it, it's a broken tube. Ask someone to fix it. I can't do it myself.

Is there a hint or not? If it's all black, you'll have to send it for repair, and you're looking to see if it's a resolution problem. Where does the liquid crystal come from? The man lied to you ... Finally, let's take a look at the pins.

There are many reasons for the flickering of the monitor screen, among which it is caused by the failure of the monitor and graphics card, and the user can troubleshoot and solve it by following the steps below:

1) Check whether the graphics card driver is abnormal.

Try reinstalling or updating the graphics card driver to see if the monitor is still faulty 2) Check if the monitor is abnormal.

Press the button on the monitor (OSD menu), find the factory reset item, and click to take effect to confirm whether the fault exists. Confirm whether the contact of the monitor cable is intact, confirm that the cable is firmly connected, whether the cable is damaged, and replace the cable to confirm whether the monitor fault persists.

3) Check if the graphics card is abnormal.

After shutting down, try changing to another graphics card and rebooting it. If the fault disappears after the replacement, it proves that it is a problem with the graphics card hardware, and the graphics card needs to be repaired.

If it is just a flash that is difficult to start, slightly bright--black screen--faint-bright-black screen, it may be caused by the failure of the filter capacitor of the display power supply, this fault is gradually aggravated, and the capacitor can be replaced.

1.Causes of display jitter.

2.The monitor refresh rate is set too low.

3.When the refresh rate of the display is set to be lower than 75Hz, the screen often shakes and flickers, so adjust the refresh rate appropriately, such as setting it higher than 85Hz, and the screen shaking will generally not appear again.

4.The power transformer is too close to the monitor and chassis.

5.When the power transformer is working, it will cause large electromagnetic interference, which will cause the screen to shake. Keeping the power transformer away from the chassis and display can solve the problem.

6.Inferior power supplies or power supply equipment are aging.

7.The workmanship and materials used in many miscellaneous computer power supplies are very poor, which can easily cause the circuits of the computer to be poor or the power supply capacity can not keep up, and when the system is busy, the display will especially appear screen shaking. When the power supply equipment of the computer starts to deteriorate, it is easy to cause the same problem.

8.The speakers are placed too close to the monitor.

9.The magnetic field effect of the speaker will interfere with the normal operation of the display, causing the display to produce magnetic interference phenomena such as screen shake and color crossing.

9.Viruses: Some computer viruses can disrupt the screen display, such as: character inversion, screen shaking, graphic flipping display, etc. The ubiquitous screen shake scripts on the internet are enough to make your head as big as a cow after a hit.

10.Poor Graphics Card Contact: Faults can be troubled after the graphics card is reinserted.

BenQ doesn't know much about it, that's how it is in general