Test Pattern - Furuno CH-300 Operator's Manual

6. MAINTENANCE, TROUBLESHOOTING
6.9

Test Pattern

A test pattern can be displayed to check for proper display of colors.
1. Press the MENU key to open the menu.
2. Press ▲ to choose MENU, and then press ► to choose SYS.
3. Press ▼ to choose GO TO SYS MENU.
4. Press ◄ to choose YES.
5. Choose TEST PATTERN and press ► to display the test pattern. Press ► again to
change the test pattern. The pattern changes in the sequence shown below with each
press of ►.
16 tones
of RED
To quit the test pattern, press the MENU key.
6-8
16 tones 16 tones
of GREEN of BLUE
BLACK BLUE
Test pattern
WHITE
RED
GREEN