JVC TK-WD31 Instructions Manual page 44

Allowed characters
Space
Pressing the SELECTOR button in the t direction will select the
character on the right and pressing in the 8 direction will select the
character on the left. Pressing and holding the button will continu-
ously change the character selected.
Memo
When CAMERA TITLE is set to ON, a background the width of 1
character is displayed, even when there is no camera title entered.
If a CAMERA TITLE of more than 1 character is entered, a back-
ground the width of 24 characters is displayed.
38
8 direction (SELECTOR button) t direction