Furuno SC-120 manual Troubleshooting, Diagnostics, Symptom Cause Remedy, Diagnostic test1

4. MAINTENANCE, TROUBLESHOOTING

4.2Troubleshooting

This section provides basic troubleshooting procedures which the user may follow to restore normal operation.

Troubleshooting

Symptom	Cause	Remedy
Cannot turn on the power.	Power connector on the	Firmly connect the power
	processor unit	connector.
	Power supply failure	Check the power supply.
	Blown fuse	Check the fuse.
Heading indication	Sensor trouble	Run the diagnostic test2 to
changes randomly when		determine the cause.
ship is at anchor or does
not change when ship
moves.
Heading output from	Connection between	Firmly fasten the
SC-120 does not appear	SC-120 and external	connector.
on external equipment.	equipment has loosened
	Sensor trouble	Run the diagnostic test1 to
		determine the cause.

If large hading error occurs or heading indication is frequently interrupted, contact your dealer for advice.

4.3Diagnostics

Diagnostic test1

The diagnostic test checks the equipment for proper operation.

Note: Heading is not output during the diagnostic test, and this is communicated with an appropriate message. After completing the diagnostic test, turn the power off and on to update heading data.

1.Press the [MENU] key to open the menu.

2.Choose SYS SETUP and press the [ENT] key.

3.Choose TEST? and press the [ENT] key.

TEST1

TEST2

Test menu options

4. Confirm that TEST1 is selected and press the [ENT] key.

TEST START?

(STOP: PWR OFF)

ARE YOU SURE?

YES NO

Test start prompt

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