Furuno GP-1640, Operator'S Manual

Page: 82 / 96

12-4
Keyboard test
This test checks all controls for proper
operation.
1. Press the [MENU] followed by the
CONFIGURATION, SYSTEM MENU and
SELF TEST soft keys to display the self
test menu.
2. Press the KEYBOARD TEST soft key to
display the screen for testing the keyboard.
KEYBOAD
TEST
PRESS
"CLEAR" KEY
3 TIMES
TO RETURN.
▲
▲
▲
▲
Keyboard test
3. Press any key. The pressed key’s
on-screen location turns black if the key is
functioning properly.
4. To escape, press the [CLEAR] key three
times.
Display test
1. Press the [MENU] key followed by the
CONFIGURATION, SYSTEM MENU and
SELF TEST soft keys to display the self
test menu.
2. Press the TEST PATTERN soft keys to
open the test pattern display.
3. Press the [ENTER] key to change the test
pattern.
TEST PATTERN
PRESS "ENTER" TO CHANGE PATTERN RETURN
Display test pattern