Furuno GP-1850W - Manual (Page 85)

12. MAINTENANCE & TROUBLESHOOTING
12-5
Display test
1. Press the [MENU] key followed by the
CONFIGURATION, SYSTEM MENU and
SELF TEST soft keys to display the
TEST menu.
2. Press the TEST PATTERN soft key to
open the test pattern display.
3. Press the [ENTER] key to change the
test pattern.
TEST PATTERN
WHT GRN BLU BLK
WHT
RED
GRN
BLU
BLK
RED
PRESS "ENTER" TO CHANGE PATTERN RETURN
Display test pattern
Remote controller test
This test checks the controls of the remote
controller for proper operation.
1. Press the [MENU] key followed by the
soft keys CONFIGURATION, SYSTEM
MENU and SELF TEST to display the
self test menu.
2. Press the REMOTE CONTROLLER
TEST soft key to display the screen for
testing the remote controller.
REMOTE
TEST
RETURN
PRESS
"CLEAR" KEY
3 TIMES
TO RETURN.
Remote controller test
3. Press the any key. The pressed key’s
on-screen location turns black if the key
is functioning properly.
4. To escape, press the RETURN soft key
on the display unit, or press the [CLEAR]
key three times on the remote controller.