AOpen CRW620 User Manual
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1. Cautions During Installation

Caution: Dismantling the drive to attempt repairs or for other reasons is dangerous because the laser may radiate outside the unit. Do not disassemble the drive.


qInstall the drive in accordance with the specifications. Be careful to avoid locations likely to cause vibration or shock.

qAvoid locations where there is high humidity, much dust, or poor ventilation.

qAvoid locations in direct sunlight, with severe changes in humidity, or places where there are extremely high or low temperatures.

qDon' t use the drive near radio or television receivers. It may interfere with their reception.

2.Cautions During Use


qDon’t suddenly move the drive from a cold place to a warm one, or suddenly raise the room temperature. Condensation may occur, causing abnormal operation.

qMake sure to remove the disc before moving the drive. The disc may be damaged, causing data loss.

qBe careful to prevent foreign objects such as liquids or metal from entering the drive. Should by chance a foreign object enter the drive, please consult the dealer where the drive was purchased.

qDon' t use benzene or thinner to clean dirt from the drive. Don't allow chemicals such as insecticides to contact the drive. Use a soft cloth to wipe the drive, or


moisten a cloth with neutral detergent diluted with water and use it to clean particularly dirty areas.

qDon' t cutoff the electric power while the drive is operating.

qWhen connecting the SCSI cable, observe the following points.

qIf two different devices with the same SCSI ID are connected to the SCSI bus, the system may fail to function. Be careful that none of the SCSI Ids are the same when installing the equipment.

qKeep the total length of the SCSI cable within 6 meters.

qWhen connecting the SCSI cable to the drive, make sure the power is OFF.

qNever insert a damaged disc into the drive.

qIn wintertime, don' t use a disc soon after bringing in from outdoors. Use it only after it has reached room temperature.

3.Cautions Concerning Disc Cleaning

qRemove the disc by pressing the eject button.

qUse compressed air to clear dust from the drive. (Spray the compressed air for about 5 seconds).

qCheck to see if there is dirt on the surface of the disc. Be careful not to touch the disc with the fingers when doing this.

qAfter cleaning the disc with compressed air, place it on the disc tray and load in the drive.

*We suggest using Perfect Duster II (50z.) as compressed air for cleaning.


4. Other Cautions


qWhen moving the equipment, make sure that the disc has been removed from the drive.

qWhen not using the drive for a long period, dust may adhere to the disc tray. Before using the drive again, use dry air cleaner to remove the dust from the tray.

qWhen connecting connectors, make sure that the power is OFF. If the power is ON, there is a possibility of short circuit.

5.How to Use the Discs


qWhen using CD-ROMdiscs,CD-Rdiscs orCD-RWdiscs, don' t attach any stickers or labels to the discs. Using discs with them attached not only causes read and write errors, but data on the disc may be lost due to damage to the disc itself.

Load the disc

1 Press the eject button.

2 place the disc on the disc tray.


qWhen using a 120 mm CD, place it in the large round depression. When using 80 mm CD, place it in the small round depression. The face with the label on it should be up. Never place both discs in the tray at the same time.

qBe careful not to touch the recording surface of the disc.


Load the disc by pressing the eject button or by lightly pushing in the disc tray.

Fig. 1-1Load the disc

Disc ejection

1.Press the eject button.

2.Slowly take the disc out of the disc tray.

3.Press the eject button or push the disc tray and the tray will be brought back into the drive.


qAfter ejecting the disc, return the tray inside the unit quickly. When the tray is in the ejected position, dust and other debris will enter, possibly causing read errors, write errors, or drive failure.