Furuno Ls4100 manual Memory Clear, Test Pattern, Clear memory display, Test patterns

4.The ROM, RAM and NMEA port are checked, with the results shown as OK or NG (No Good). For any NG, request service. (A special connector is required to test the NMEA port. Nothing appears if no connector is connected.)

5.The squares at the right side of the test display are for checking the controls. Press each key and the arrows on the Cursor Pad one by one. A control’s corresponding on-screen square “lights” in black if the control is normal.

6.To return to the Installation menu, press the [MENU/ESC] key three times.

7.To restore normal operation, turn off the power and turn it on again.

3.9 Memory Clear

The memory can be cleared to start afresh with default menu settings.

1.At the installation menu, press ▼ to choose MEMORY CLEAR.

2.Press ► to open the options window.

: YES

: NO

Clear memory display

3.Press ▲ to clear the memory. Beeps are generated while the memory is being cleared.

4.To restore normal operation, turn off the power and then turn it on again.

3.8 Test Pattern

This feature tests for proper display of tones.

1.On the Installation menu, press▼ to choose LCD PATTERN.

2.Press ► to start the test. The entire screen is black.

3Press ► again and the screen turns white.

4.Press ► again and the screen shows a four-toned display.

5.Press ► again to return to the Installation menu.

6.To restore normal operation, turn off the power and then it on again.

BLACK WHITE FOUR-TONE

Test patterns

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