HP 1900ux, 2300ux, 1000ux manual Bottom Thumb

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Table 7: Internal tests (Continued)

Test Name	Description
BOTTOM THUMB	Used by service personnel only.
	Reports THUMB A, THUMB B, or NO THUMB. Looks at the
	top and bottom thumb sensors and reports whether the
	thumbs on the disk transport mechanism are in the forward
	or back position. If THUMB A or THUMB B is returned, the
	specified thumb is the forward position. If NO THUMB is
	returned, both thumbs are in the back position.
TOP THUMB	Used by service personnel only.
	Reports ON or OFF. Looks at the top thumb sensor which
	reports whether or not the thumb that is currently on the top
	side of the disk transport mechanism is in the forward
	position. If ON is reported the thumb is in the back position;
	if OFF is reported the thumb is in the forward position.
TRANSLATE	Reports ON or OFF after looking at the translate calibration
SENSOR	sensor. Display automatically updates if the status changes.
MEDIA TYPE	This is available only in a mixed-media (MO and UDO) unit.
	Moves all of the disks in the jukebox, except those in drives,
	to the media test station, then back to their original positions
	to determine the drive compatibility of all of the disks.

48 HP StorageWorks 1000ux/1900ux/2300ux Optical Jukebox User’s Guide