8. MAINTENANCE, TROUBLESHOOTING

8.8.3Keyboard test

The keyboard test checks the controls on the control unit for proper operation.

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 B: KEYBOARD & REMOTE TEST soft key.

PROGRAM

No. 0359203-03.01

ROM

:OK

ROM

:OK

Screen for testing keyboard

6.Operate each control on the keyboard one by one. A key is functioning properly if its on-screen location “fills” in black when the key is pressed. For the ENTER knob and Trackball, rotate them to show their X-Y positions digitally, and push the ENTER knob to confirm its function. Their ranges are –999 to +999.

7.Press the CLEAR key three times on the control unit to escape from the test.

8.Press the MENU key to close the menu.

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Furuno 1944C-BB, GD-1920C-BB, 1954C-BB, 1964C-BB, 1934C-BB, 1834C-BB, 1824C-BB manual Keyboard test, Screen for testing keyboard