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17-7
IM 701210-06E
Other Operations
17
17.6 Locking the Keys
Procedure
FILE
SHIFT
HELP
MISC
NUM KEY
PROTECT
VOICE
MEMO
IMAGE
SAVE
SNAPSHOT CLEAR TRACE
MENU
MENU
1.
Press
PROTECT
. The LED above the key illuminates, and the keys are locked.
2.
To release the lock, press
PROTECT
again.
Explanation
This function locks the operation keys so that the current DL750/DL750P condition is not
changed accidentally. When keys are locked, all keys other than the PROTECT key
cannot be used.
Note
When keys are locked, operations using the USB mouse and USB keyboard are also
disabled.