NorthStar 957 Operator's Manual page 162

Chapter 11 - Setting up your 957
Using the
ignore-door feature
Page 154
When you're done, press and hold the CURSOR PAD up or
down until the 957 displays the MORE OPTIONS/SERVICE
INFO screen again.
To help protect the Nav-Chart cartridge (as well as the 957's
internal components) from water and salt spray, a switch in the
957's cartridge door latch senses if the door is open or closed.
When open, the 957 won't do the following:
•
use or display information from the chart cartridge
•
display the cartridge's ID name or date information on the
CHART SETUP/STATUS screen
Essentially, when the door is open the 957 acts like there's no
cartridge installed.
If the door becomes damaged, or the latch sensor doesn't work
properly, you can bypass the safety feature by pressing the
MORE key on the OPTIONS/SERVICE INFO screen, then the
IGNORE DOOR key on the MORE OPTIONS/SERVICE INFO
screen, then the ENTER key. The 957 will then let you use the
cartridge as if the door was functioning properly.
957 Operator's Manual, Rev. B