1.The Drive has trouble accepting or rejecting CD.
2. The Disc cannot be read
3. The Disc does not turn
4. No Audio is generated by the drive.
5. Audio is not played by the sound card
6. Unable to access the CD-Rom drive later
7. The CD-Rom drivers will not install properly on a drive using compression software.
8. Error indicating that the CD-Rom is drive not found
9. You have trouble setting up more than one CD-Rom drive
10. CD-Rom drive refuses to work on IDE Port.
11. Error “No Drive Found” appears when the CD-Rom river line is executed in CONFIG.SYS.
12. When a SCSI CD-Rom drive is connected to a SCSI adapter, the system hangs when its BIOS starts.
1.The Drive has trouble accepting or rejecting CD.
a. Before performing any disassembly, check the assembly through the CD slot for any obvious obstructions.
b. If nothing is obvious, check each linkage & motor drive gear very carefully.
c. Replace any worn or damaged part of the mechanism & also check the geared motor for any damage.
d. Be careful while load/unload assembly.
Top
2. The Disc cannot be read
a. This type of problem might result in a DOS level “sector not found” or “drive not ready” error.
b. Check the CD itself to ensure that it is the right format, inserted properly, and physically clean. As cleanliness is very important for CD.
c. Try a different disc to confirm the problem, if it reads properly the trouble might be indeed in the original disc itself.
d. If read problem persists, check the physical interface cable between the drive and its adapter board.
Top
3. The Disc does not turn
a. The disc must turn at Constant Linear Velocity (CLV) that is regulated by a spindle.
b. If the disc is not spinning during access, check that it is seated properly & is not jam.
c. If the computer does not recognize the CD drive there might be setup or configuration problem.
d. If your drive provides the instruction of cleaning the optical head aperture, perform the cleaning operation & try the drive again.
e. If the problem persists, replace the CD-Rom Drive mechanism.
Top
4. No Audio is generated by the drive.
a. Many CD-Rom drive are capable of reading Computer data.
b. Audio CDs can often be played in available CD-Rom through headphones & speakers.
c. Once you have confirmed that the speakers or headphones are working reliably. Check the drive audio volume setting.
d. Check any software required to operate the CD driver’s audio output is installed and loaded properly.
e. If the problem persists replace the entire CD-Rom drive outright.
Top
5. Audio is not played by the sound card
a. Normally the sound card will not play Red Book Audio from a CD-that is usually fed directly to headphone or line output.
b. Most CDs offer an audio connector that allows audio signals to be fed directly to the sound board.
c. If this “CD audio cable” is missing or defective, check or replace the cable.
d. If problem persist, replace the sound board .
e. If the CD audio cable is intact & audio is not available from the headphone output,the audio amplifier circuit in the CD-Rom is probably being defective -replace the CD-Rom.
Top
6. Unable to access the CD-Rom drive later
a. You might see an error message , such as “Invalid drive specification”-this is a problem with CD-Rom drivers.
b. The MSDOS extension MSCDEX may not be loaded.
c. Switch to DOS sub-directory and use the Mem/c to check the loaded drivers.
d. Be sure that the data cable between the drive and adapter board is inserted properly.if problem persist try replacing adapter board.
e. Be sure that the label used in the /D switch is the same for both the low-level driver and MSCDEX,if the label is not same MSCDEX will not load.
f. If you are using MSDOS 5.0,be sure that SERVER utility is loaded.
Top
7. The CD-Rom drivers will not install properly on a drive using compression software.
a. This is usually because you booted from a floppy disk and attempted to install drivers without loading the compression software.
b. Check the loading order-allow your system to boot from the hard drive before installing the CD-Rom drivers.
c. If you boot the system from a floppy disk be sure that the diskette is configured to be fully compatible with the compression software being used.
Top
8. Error indicating that the CD-Rom is drive not found
a. Check the power connector first. If the drive is being powered by a Y-connector , be sure that internal connections are secure.
b. Check the signal connector next, & see that the drive’s signal interface cable is connected securely at the both drive & controller.
c. inspect the drive interface adapter and be sure that the adapter’s IRQ,DMA, &I/O address settings are correct.
d. If your CD-Rom uses SCSI interface , be sure that the SCSI bus is properly terminated at both ends.
e. If problem persist replace the drive adapter.
Top
9. You have trouble setting up more than one CD-Rom drive
a. Check the drive adapter first- be sure that drive adapter will support more than one CD-Rom on the same channel.If not, you have to install another drive adapter to support the new drive.
b. You will need to have one copy of lower-level driver loaded in CONFIG.SYS-one for each drive.
c. Finally check your copy of MSCDEX. You will need only one copy of MSCDEX in Autoexec.bat but switch “/D:” switch must appear twice once for each drive ID.
Top
10. CD-Rom drive refuses to work on IDE Port.
a. The drive might use non-standard port (other than IDE). Try replacing the drive adapter board.
b. You must connect the CD-Rom drive to a compatible drive adapter.
c. If a drive is proprietary it will not interface to a regular IDE port.
d. It might be necessary to purchase a drive adapter specially for the CD-Rom drive.
Top
11. Error “No Drive Found” appears when the CD-Rom river line is executed in CONFIG.SYS.
a. The driver command line switches do not match Hardware configuration of the drive adapter.Your low level driver might be incomplete.
b. Open CONFIG.SYS in to a word processor and see that the low level driver has accurate command line.
c. Check the MSCDEX command line next open AUTOEXEC.BAT in to word processor .
d. If you are using smart drive with DOS 6.0 or later, try adding /U switch to the end of your smart drive command line in AUTOEXEC.BAT.
e. If problem persists replace the driver controller.
Top
12. When a SCSI CD-Rom drive is connected to a SCSI adapter, the system hangs when its BIOS starts.
a. In most cases, the CD-Rom drive supports plug and play , but the SCSI controller’s BIOS does not. Disable the SCSI BIOS through a jumper on the controller and use a SCSI driver in CONFIG.SYS instead.
b. You might need to download a low-level SCSI driver from adapter manufacturer.
Top
