Why can’t the computer open the camera disc?

First of all, listen to the sound of the optical drive running. If it makes a "beep" sound or an abnormal sound such as "cough-beep", you can initially conclude that it is a mechanical failure, but sometimes the optical drive will make a "whirr" sound. The sound of "squeaking" (just like normal disk reading, but the sound is extremely loud and takes a long time) may also be caused by the optical components being contaminated, the reflected signal being insufficient, and the optical drive forcing the disk to be read

Open the optical drive again Open the back cover and observe the operation of the optical drive. Under normal circumstances, there should be no lag in the movement of the optical head and the rotation of the optical disc. When the disc is ejected, the optical drive will rotate again to allow the optical head to return to its position and then eject the disc. If you find that there may be a mechanical problem while listening, pay attention to the moving part of the chuck. Today's compact discs are very rough and cut corners. The platters are extremely thin. The chuck parts seem to be particularly worn and cannot be clamped tightly. You can find a broken optical drive chuck part and replace it. You can also consider cutting a gasket of suitable size and sticking it under the chuck part. Pay attention to the adjustment and it can be used well. What you should also be concerned about is that sometimes the motor that rotates at the same time as the disc seems to be slipping. In fact, it is mostly due to problems with the chuck parts. Sometimes there is a problem with the movement track of the optical drive's bald head. Check the movement of the bald head. It may not be smooth. You can wipe the track and add some lubricant (what? What are you going to do with that sewing machine oil? Use solid lubricant!) . It is said that sometimes foreign objects in the light drive can cause problems. I have never encountered any problems, but what can't happen these days? Check it out well.

If the operation is normal, you can consider an optical failure and see if the bald head has a "dusty pyrotechnic color". Use cotton wool dipped in water (some people think it is better to use absolute alcohol, but I used water anyway) and gently Wipe your bald head clean, then use an ear blower (generally sold in photographic equipment stores, but not in computer stores) or a hair dryer to dry it, and try again. The power of the dimmer head depends on the optical drive, and each one is different. As for using a multimeter to measure it, not everyone can do it. Try fine-tuning carefully and try again and again with the same disc. It is relatively simple and intuitive (experts have to criticize again, anyway, it is a dead horse. Horse doctor). This part has been introduced in detail in major newspapers, so I won’t go into details here. Another situation is that the focus is diffuse or inaccurate. You can observe the optical head of the optical drive, which will emit red light. Place a piece of paper directly above the optical head to see the projection of the laser ray. It should be cast directly above the optical head, forming a The red round dots (very small), if they are irregular or not placed directly above, usually the disc will not be recognized when the disc is put in, or the disc will be recognized inexplicably (the indicator light on the panel just flashes once, and the disc is not recognized). It doesn't move at all), this bald head can also be adjusted (each optical drive is different, try it yourself). The probability of this happening is small, and it may be caused by some vibrations received by the optical drive.

If there is a problem with the electronic components, it will be troublesome. Call a professional or replace the optical drive.

The optical drive of a personal computer is very important. Please use it with care. Maintenance can only solve more than half of the problems. Only by using it rationally can you save as much money as possible! Novices can try it out by themselves for the first time. If they are bold, careful and patient, they will soon be able to master the basic skills of repairing optical drives.

The following is how to judge the optical drive failure. You can make the judgment based on your situation.

When there is a problem with the optical drive, it usually manifests as the indicator light of the optical drive flashing continuously, The disk cannot be read or the disk reading performance is degraded; the optical drive letter disappears. When the optical drive is reading a disc, a blue screen of death occurs or a prompt box such as "Unable to access the disc, the device is not ready" is displayed.

1. Caused by improper connection of the optical drive

After the optical drive is installed, perform a power-on self-check. If the optical drive cannot be detected, carefully check whether the connection of the optical drive cable is correct and secure, and whether the optical drive is properly connected. Is the power cord plugged in properly? If the screen freezes when the optical drive is detected during the self-test, check whether the jumpers of the optical drive (master and slave) are correct.

Reminder: Try not to connect the optical drive and the hard disk to the same data line.

2. Internal contact problem

If the optical drive is stuck and cannot be ejected, there may be a problem with the contact between the internal parts of the optical drive. You can try the following methods to solve it: Remove the optical drive from the case and use a Phillips screwdriver to disassemble it. Eject the optical drive tray through the emergency ejection hole so you can remove the upper and front covers of the optical drive. After removing the upper cover, you will see the movement of the optical drive. On the left or right side of the tray, there will be a belt with the tray motor connected to the end. You can check that the belt is clean and has no misalignment, and you can also oil the end of the belt and the motor. In addition, there will be a row of saw teeth on both sides of the optical drive tray, which controls the ejection and retraction of the tray. Please oil the saw teeth and check if there are any faults such as misalignment. If it is oiled, please wipe off the excess oil, reinstall the optical drive, and finally try turning it on again.

Reminder: However, since this kind of repair is relatively professional, it is recommended that you find a professional to repair it.

3. Problems with CMOS settings

If the system stops or crashes when the optical drive is detected during the power-on self-test, it may be that the working mode of the optical drive in the CMOS settings is set incorrectly. Caused by. Generally speaking, as long as all used IDE interfaces are set to "AUTO", the optical drive working mode can be correctly identified. For some early motherboards or individual phenomena, settings need to be made.

4. Driver problems

In Windows systems, when the motherboard driver is lost due to viruses or misoperation, the IDE controller will not be correctly recognized by the system, causing If the optical drive fails, then we only need to reinstall the motherboard driver.

In addition, when a CD-ROM driver is mistakenly operated such as repeated or multiple installations, Windows will recognize multiple CD-ROM drives, which will cause a blue screen when Windows starts. We only need to enter Windows safe mode (click "My Computer → Properties → CD-ROM") and delete the extra optical drive to solve the problem.

5. The optical drive does not support DMA

Early optical drives may not support DMA. You can turn off the DMA interface of the optical drive to avoid incompatibility. After completing the settings, press the "OK" button and restart the computer.

When the DMA interface optical drive is incompatible with the motherboard, DMA should also be turned off. If you really want to take advantage of the performance brought by the optical drive DMA, it is recommended to upgrade the motherboard's BIOS or the optical drive's firmware (Firmware). In addition, after the optical drive is used for a long time, disk reading will become unstable. We can try to turn off DMA to reduce performance and improve stability.

6. Virtual optical drive conflicts

When we install the optical drive, we usually install a virtual optical drive for use. However, after installing a virtual optical drive, you sometimes find that the original physical optical drive is "lost". This is because there are too few available drive letters set in the hardware configuration file. Solution: Use the Notepad program that comes with Windows to open the "Config.sys" file in the root directory of drive C, add "LASTDRIVE=Z", save and exit, and the problem will be solved after restarting.

After installing a lower version of the "virtual disc" when installing dual optical drives, in some cases one or two physical optical drives will be "lost"! Suggestion: Change to a higher version or other virtual optical drive program.

7. Caused by the aging of the laser head

After ruling out the cause of dust, if the optical drive still cannot read the disk, it is likely that the "laser head" is aging. At this time, the optical drive laser must be adjusted. The potential regulator near the head increases the resistance to change the intensity of the current to increase the power of the emission tube and increase the brightness of the laser, thus improving the disk reading ability of the optical drive