Yamaha EL-700 Owner's Manual - Page 85
Improved Potentiality of the M.D.R., Cleaning the Disk Drive Read/Write Head, About the Floppy Disks
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Cleaning the Disk Drive Read/Write Head q Clean the read/write head regularly. This instrument employs a precision magnetic read/ write head which, after an extended period of use, will pick up a layer of magnetic particles from the disks used that will eventually cause read and write errors. q To maintain the disk drive in optimum working order Yamaha recommends that you use a commercially-available dry-type head cleaning disk to clean the head about once a month. Ask your Yamaha dealer about the availability of proper head-cleaning disks. Never insert anything but floppy disks into the disk drive. Other objects may cause damage to the disk drive or floppy disks. s To protect your data (Write-protect Tab): To prevent accidental erasure of important data, slide the disk's write-protect tab to the "protect" position (tab open). If you attempt to modify the disk when the write-protect tab is set to "on" position, "Prot (Protected)" will appear on the LED display in the M.D.R. section indicating that the operation is not possible. Protect Off (tab closed: unlocked) Shutter Rear side Write-protect tab Protect On (tab open: locked) About the Floppy Disks s Data backup s To handle floppy disks with care: For maximum data security Yamaha recommends that you keep two copies of important data on separate Do not place heavy objects on a disk or bend or floppy disks. This gives you a backup if one disk is apply pressure to the disk in any way. Always keep floppy disks in their protective cases when lost or damaged. To make a backup disk use the Disk Copy function on page 103. 7 they are not in use. Music Disk Recorder Do not expose the disk to direct sunlight, extremely high or low temperatures, or excessive humidity, dust or liquids. Do not open the sliding shutter and touch the exposed surface of the floppy disk inside. Improved Potentiality of the M.D.R. The M.D.R. of the EL-700/500 begins reading all data as soon as you insert a disk into the floppy disk slot. Thus, inserting a disk causes to produce a sound (reading sound) indicating that the M.D.R. is in the reading process. Do not expose the disk to magnetic fields, such as those produced by televisions, speakers, motors, etc., since magnetic fields can partially or completely erase data on the disk, rendering it unreadable. The improvement of the M.D.R. allows you to start song playback immediately, to be free from the reading sound during playback and to record the song playback using the several song numbers with the Next Song function. Never use a floppy disk with a deformed shutter or housing. Do not attach anything other than the provided labels to a floppy disk. Also make sure that labels are attached in the proper location. NOTE: Ejecting the disk will lose the data loaded from the disk except for the currently selected and played back song. NOTE: The time reading sound is produced is in proportion to the amount of data recorded in the disk. You can eject the disk whenever you are not using the M.D.R. and don't want to be bothered with the reading sound. 85