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Computer optical drive common problems and solutions

Computer optical drive common problems and solutions
Update Time:2019-10-23
Computer optical drive common problems and solutions
The optical drive is one of the shortest-life accessories in computer hardware. In fact, many of the discarded optical drives still have great value in use, as long as a little repair can be done. This often does not require any in-depth radio expertise or the use of too complex repair tools and materials. As long as you carefully observe the fault phenomenon and refer to the following elimination methods, I believe that the old optical drive can still restore the former "style".
Common fault one: the hard disk light always blinks when the optical drive is working.
This is an illusion, but it is not. The hard disk light flashes because the optical drive and the hard disk are connected to an IDE interface, and the result of the hard disk light is also controlled when the optical disk is in operation. The optical drive unit can be connected to an IDE interface.
Common fault 2: When operating the CD-ROM in the Windows environment, it displays "32 disk access failed" and then crashes.
Obviously, Windows 32-bit disk access has a certain impact on CD-ROM. Most of the CD-ROM is connected to the IDE interface of the hard disk. It does not support the 32-bit disk access function of Windows, which causes Windows to cause internal errors and crash. After entering Windows, double-click "Control Panel" in the "Main Group" to enter the "386 Enhanced Mode" setting, click the "Virtual Memory" button and then click "Change" to put "32-bit disk access" in the lower left corner. The verification box is closed. After confirming, restart Windows and access the CD-ROM in Windows without error.
Common fault 3: The optical drive cannot read the disk normally. The screen displays: "There is no disk on the drive X, insert the disk and try again", or "CDR101: NOTREADY READING DRIVE X ABORT.RETRY.FALL?" Occasionally enter and exit the box and read it several times. Disk, but not to read the disk soon.
In this case, the virus should be detected first, and the whole machine should be checked and disinfected by using anti-virus software. If no virus is found, the file editing software can be used to open the CONFIG.SYS file in the root directory of the C drive to see if the optical drive is hung. Whether the program and driver are destroyed and processed, you can also use the text editing software to check whether there is "MSCDEX.EXE/D:MSCDOOO /M:20/V" in the "AUIOEXEC.BAT" file. If the above two steps are not found, , detachable optical drive repair.
Common fault four: read and write errors or diskless prompts when using the optical drive
Most of this phenomenon is caused by the operation of the optical drive when it is not in place at the time of disk change. All operations on the optical drive must be performed when the disc indicator is displayed as good. You should also change the time when you play the disc to zero, so you can avoid the above error.
Common fault five: the screen pauses or breaks when playing a movie VCD
Check if "SMARTDRV" in the AUTOEXEC.BAT file is placed after MSCDEX.EXE. If it is, then the SMARTDRV statement should be placed before MSCDEX.EXE, and the high-speed party group flushing program of the optical drive should not be used, and it should be changed to SMARTDRV.EXE/U, and the fault can be eliminated.
Common fault 6: When the optical drive reads data, sometimes it can't be read, and the time for reading the disk becomes longer.
The hardware failures that the optical drive can't read are mainly concentrated on the laser head assembly, and can be divided into two cases: one is that the laser tube is aged for too long; the other is that the photocell surface is too dirty or the laser tube lens is too dirty. And displacement deformation. Therefore, when adjusting the power of the laser tube, it is necessary to clean the photocell and the laser tube lens.

The photocell and the focusing lens are cleaned by unplugging a set of flat cables connected to the laser head assembly, remembering the direction, and disassembling the laser head assembly. At this time, the sheath can be seen to cover the laser head focusing lens. When the sheath is removed, the focusing lens is connected by four thin copper wires to the focusing and tracking coils, and the photocell assembly is installed in the small hole directly under the lens. Wipe the cotton with a small amount of distilled water with a thin wire (not wipe the phototube and the surface of the focusing lens with alcohol), and see if the lens is horizontally suspended facing the laser tube, otherwise it should be adjusted properly. At this point, the cleaning work is completed.

Adjust the laser head power. On the side of the laser head assembly there is a small potentiometer like a Phillips screw. Use the color note to its initial position, generally rotate clockwise 5 ° ~ 10 °, install the test machine can not rotate counterclockwise 5 ° ~ 10 °, until the disk can be read smoothly. Be careful not to rotate too much to avoid burning the photocell due to too much power.
Common fault seven: boot does not detect the optical drive or test failure
This may be caused by the loose connection of the optical drive data cable, the damage of the hard drive data cable or the wrong setting of the optical drive jumper. When encountering such a problem, first check whether the data cable connector of the optical drive is loose. If it is found that it is not plugged in, Reinsert it and plug it in. If this still does not solve the problem, then you can find a new data cable and try it. At this time, if the fault persists, I need to check the jumper settings of the disc. If there is an error, change it.
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