Roland Vs-880 To stop during the procedure, If the display indicates No Err

Chapter 1 Trying out the expanded functions

Chapter 1

7.Drive check will begin.

CONDITION MARKER# TIME

dB

0

4

12

24

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INPUT TRACK AUX MASTER

8.When drive check ends, the following display will appear. Rotate the TIME/VALUE dial.

CONDITION MARKER# TIME

dB

0

4

12

24

48

INPUT TRACK AUX MASTER

To stop during the procedure

To stop the drive check during the procedure, press [CAN- CEL(NO)].

If the display indicates “No Err”

9-1.The entire disk could be read correctly. Press [YES].

You will return to Play condition.

If the display indicates “___ Err”

The underlines portion will display the number of times that a read error occurred. Rotate the TIME/VALUE dial. The display will indicate ÒErrÓ for locations where an error was found. Locations for which ÒOKÓ was displayed have no problems.

CONDITION MARKER# TIME

dB

0

4

12

24

48

INPUT TRACK AUX MASTER

Cluster Info. (Cluster information)

Total:	Number of clusters on the entire disk
Defect:	Number of clusters tagged as unusable
	memory
Used:	Number of clusters currently being used
Free:	Number of clusters currently not being
	used
X-Link Err:	Number of cross-linked clusters
Loose Area:	Number of clusters whose links are lost
IllegalDIR:	Number of directories with incorrect con-
	tent.
Read Error:	Number of read errors detected by this
	operation

< Clusters >

These are the smallest unit of memory that the VS-880 uses to manage data on a disk drive.

The smallest physical units on a disk drive are called either sectors or blocks, and depending on the device, the size that is handled can be selected. For example, the VS-880 is designed to use disks with 512 bytes/sector.

When the VS-880 manages song data, it handles 64 sectors as a single unit (1 cluster). This means that 512 (bytes) x 64 (sectors) = 32768 bytes (32 kilobytes) is one cluster.

< Cross link >

This is an error in which a cluster is detected as being included in two or more songs. In such a case, a complete- ly different song may be heard in the middle of a song. Such an error condition is referred to as a cross link.

< Loose Areas >

An error in which clusters not included in any song are detected as containing valid data. In this case, the VS-880 will not store data in those clusters. A situation which causes this error to occur is called a Loose Area.

< Directories >

The VS-880 stores data such as audio data or parameter values on disk in units called files. In order to manage large numbers of files, the VS-880 keeps lists of filenames and the locations on disk in which the data of these files is stored. These lists are called directories.

The Illegal Directory message will appear when this list is incorrect. For example, this message will appear if the data of a certain file is supposed to be recorded in an area of the disk which does not actually exist, or if the list itself becomes permanently unreadable.

If a disk error is found, it is possible to erase only the data that was lost as a result of the error. I.e., the disk can be restored to a correct operating condition while keeping as much possible of the non-error data.

Result List (Drive check results)

System: Location where basic data used by the VS- 880 for recording and playback is stored

Song List: Location where the saved songs are man- aged

InitSong 001:

InitSong 002: Each song (in actual use, the song name is displayed)

:

InitSong 200:

*This procedure does not correct the disk error. All error locations will be erased. This means that depending on the location in which the error occurred, a take that was recorded may no longer be playable, auto mix data may be lost, or even the entire song itself may be erased. If the error has occurred in the system or song list, the probabil- ity of this danger is especially high.

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