Viscount DB-5 Operating Manual page 17

If you wish to abort the Memory saving operation, press [EXIT] from the previous video
page.
If you wish to restore the original contents of one or all the memories, locate the cursor on
the field and press the [ENTER] button. The display will change to:
[Memory INIT]
The field displays the memory location on which the Factory Settings
Memory INIT
operation will be carried out if the [ENTER] button is pressed. You can use the [-/NO] and
[+/YES] switches to scroll through all 50 Memories. After [ENTER] is pressed the display
will show:
by which the OB5 asks you to confirm the initialisation procedure. Press the [EXIT] button
to abort the procedure, or [ENTER] to carry out the Factory Settings operation on the
Memory in question, in which case the display will show:
to confirm that the operation has taken place.
If you wish to carry out a Factory Settings procedure on all the memories, in the
video page select the field and press the [ENTER] button. The display will
[INIT ALL]
request confirmation to proceed with total initialisation of the Memories:
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