Furuno SC-120 - Manual (Page 62)

4. MAINTENANCE, TROUBLESHOOTING
4-4
Diagnostic test2
If the heading indication changes randomly when ship is at anchor or does not
change when the ship moves, run the test2 following the procedure below, with
the ship at anchor and satellite signal received.
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. Choose TEST2 and press the [ENT] key.
TEST START?
(STOP: PWR OFF)
ARE YOU SURE?
YES NO
Test start prompt
5. Press ◄ to choose YES and press the [ENT] key.
6. Press the [ENT] key twice. Rate and angle values are 0.0
° . If the values
increase or decrease markedly (with ship at anchor), suspect rate sensor
trouble. Contact your dealer to request service.
TEST2
RATE
ANGLE
YAN ROL PIT
0.0 ° 0.0 ° 0.0 °
0.0
°
0.0
°
0.0
°
TEST2 display
7. Turn off the processor unit to quit the diagnostic test2.