Furuno 1834C-BB - Manual (Page 203)

8. MAINTENANCE, TROUBLESHOOTING
8-10
8.8.2 Test pattern
The test pattern test checks the display for proper display of colors.
1. Press the MENU key to show the menu.
2. Press the E: SYSTEM CONFIGURATION soft key.
3. Press the C: SYSTEM SETUP soft key.
4. Press the B: TEST & CLEAR soft key.
5. Press the C: TEST PATTERN soft key to show the test pattern.
6. Push the ENTER knob consecutively to show white, red, green, blue and black colors
individually.
7. Press the E: RETURN soft key.
8. Press the MENU key to close the menu.
WHT
BLU
GRN
BLK
RED
[ENTER] knob
[ENTER] knob
[ENTER] knob
[ENTER] knob
[ENTER] knob
[ENTER] knob
RETURN
GREEN
WHITE
BLACK
BLUE
GREEN
RED
PUSH ENTER KNOB TO CHANGE PATTERN.
RETURN E
WHITE
Test pattern sequence