NEC MultiSync LCD2080UX -BKA Service Manual page 94

2) Factory menu
SELECT
SELECT
SELECT
EXIT
The EXIT key is pressed 3 times and it returns to a user menu.
Press the + and – keys at the same time
while pressing the RESET key.
SELECT
A numerical value is changed by
+ key or – key.
A tab is select by the 3,4 keys.
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