User manual PLEXTOR PL-MAN3

[. . . ] ---- CHAPTER 11 ---- Using CD-ROM Discs and Caddies YOUR TASK: YOUR OBJECTIVE: YOUR METHOD: Learn how to use a caddy and how to handle and care for your discs. Insert and eject caddies properly so your drive operates without interuption. Practice loading discs into caddies, and caddies into drives. Plextor's CD-ROM drives use an industry-standard disc caddy to protect the disc from scratches and contamination. A standard caddy is made of plastic and has a metal shutter on its bottom which slides open and shut. [. . . ] If it works, you should have the defective disc replaced. Symptoms · · · · Invalid Drive Specification No Device Found No SCSI Interface Board Found or No Response from SCSI Interface Board · No Drives in Use Additional Symptom Error Appears upon Initial Installation of the CD-ROM Drive and Device Driver Software Possible Causes and Solutions Improper SCSI Device Driver Installation Your computer needs a SCSI software device driver to link the SCSI interface board to the CD-ROM drive. If this driver cannot be loaded properly, an error message will normally be displayed on the screen. Watch as the CONFIG. SYS file executes and look for an error message to appear. You can press the Control and S keys simultaneously to freeze the display in order to read the error message (use the Control and S combination again to continue). If the SCSI device driver cannot be loaded properly, either a software or hardware conflict exists. Software conflicts are generally caused by memory managers; hardware conflicts by two peripherals vying for the same DOS address space. Please read the next two paragraphs on software and hardware conflicts. Software Conflict with Other Device Drivers The SCSI interface board normally designates the CD-ROM driver as the first device driver loaded by the computer. When the computer has a memory manager (e. g. , 52 PX-43CH/PX-45CH OPERATION MANUAL CHAPTER 13 ---- Troubleshooting HIMEM. SYS, 386MAX. SYS or QEMM. SYS), in most cases the memory manager is loaded first and the CD-ROM driver loaded directly thereafter. If other device drivers are loading before the CD-ROM driver, place them after the CD-ROM driver. If the memory manager tries to load the CD-ROM driver into high memory (e. g. , DEVICEHIGH or LOADHIGH), disable the function so that the driver is loaded into conventional memory. Hardware Conflict Between the Interface Board and Your Computer The SCSI interface board may be in conflict with another peripheral in your computer. Normally, this conflict can be settled by selecting a different address for the SCSI interface board. In some cases, you may wish to select a different address for the conflicting peripheral. If the driver still does not recognize the interface board, follow these steps: 1) Remove all non-essential peripherals from your computer (e. g. , network boards, fax boards, etc. ) and their device drivers from the CONFIG. SYS and AUTOEXEC. BAT files. 2) Reboot the computer and ensure that the CD-ROM device driver recognizes the SCSI interface board. 3) Turn off the computer and reinstall each peripheral and its device drivers one at a time. Improper MSCDEX Installation The Microsoft CD-ROM Extensions (filename: MSCDEX. EXE) are required to run your CD-ROM drive under MS-DOS or DR DOS. If the SCSI driver was successfully loaded, check for proper installation of MSCDEX. EXE by rebooting the computer and watching the AUTOEXEC. BAT file as it executes for an error message. SCSI Interface Board Not Properly Seated If the SCSI interface board is not fully seated into the computer's expansion slot, the device driver software will not recognize it. Inspect the interface board where it seats into the connector on your computer's motherboard. There should not be more than a small gap between the interface board and the connector. PX-43CH/PX45-CH OPERATION MANUAL 53 CHAPTER 13 ---- Troubleshooting Symptom · Incorrect DOS Version Possible Causes and Solutions Conflict between MS-DOS 5. 0 and Microsoft's CD-ROM Extensions Version 2. 2 or lower MS-DOS 5. 0 users should use Microsoft's CD-ROM Extensions (file name MSCDEX. EXE) Version 2. 21 or 2. 22. [. . . ] Always turn the drive OFF before changing the setting of the rear-panel switches. Symptom · CDR101 -- Not Ready Reading Drive [X] Additional Symptom All Commands Sent to the Drive Result in CDR101 Error Possible Causes and Solutions Defective CD-ROM Disc A fingerprint or other contaminants or deep scratches on the disc's surface may prevent the drive from reading data. Read Chapter 11 to learn how to clean CD-ROM discs. 58 PX-43CH/PX-45CH OPERATION MANUAL CHAPTER 13 ---- Troubleshooting If the problem persists, try setting the AUTO switch OFF. This setting reduces the data transfer rate to 150 KB/sec, making it possible to read some marginal data. Normally the transfer rate is 600 KB/sec for the data region of the disc and 150 KB/sec for the audio region. [. . . ]