Diagnostics - Furuno FAR-28 Series Operator's Manual

6. MAINTENANCE, TROUBLESHOOTING
6.8

Diagnostics

A diagnostic test program is provided to test major circuit boards in the control
unit, processor unit and card I/F unit. Note that the normal radar picture is lost
during this test.
Proceed as follows to execute the diagnostic test:
1. Left-click the MENU box to open the menu.
2. Select 9 [CUSTOMIZE•TEST].
3. Select 8 [TEST].
4. Select 2 [SELF TEST] .
5. Select 2 START to start the test.
In a few moments the results of the test are displayed and the buzzer
sounds continuously. The ROMs and RAMs of the SPU, RFC, KEYBOARD
(Control Unit), REMOTE (Trackball-only Control Unit) and CARD I/F UNIT
are checked for proper operation. OK appears for normal operation. If NG
(No Good) appears, corresponding components may be defective. Consult
your dealer. In the middle of the display the rpm of the antenna unit and
various voltages are displayed.
6-10
[CUSTOMIZE•TEST]
1 BACK
2 [DATA BOX]
3 [F1]
4 [F2]
5 [F3]
6 [F4]
7 [OPERATION]
8 [TEST]
CUSTOMIZE•TEST menu
[TEST]
1 BACK
2 [SELF TEST]
3 [TT TEST]
TEST menu
[SELF TEST]
1 BACK
2 START
SELF TEST menu