Furuno SC-120 - Manual (Page 61)

4. MAINTENANCE, TROUBLESHOOTING
4-3
5. Press ◄ to choose YES and press the [ENT] key. The test proceeds in the
sequence shown below.
HDG OUT1 connector
HDG OUT4 connector
NAV OUT1connector
NAV OUT2 connector
BEACON EXT connector
DISPLAY connector HDG - -
HDG4 - -
NAV1 - -
NAV2 - -
B-EXT - -
DSP
OK
CNT= (STOP: PWR OFF)
SOFTWARE VERSION
DISPLAY 205-1312-0**
PROCESS 205-1131-0**
GPS1 205-1313-0**
GPS2 205-1313-0**
GPS3 205-1313-0**
DGPS 085-0182-0**
CNT=*** ( STOP: PWR OFF)
After 3 sec.
After 3 sec.
ALL ON 2 SEC.
ALL OFF 3 SEC.
All LCD segments go on 2 sec.,
All LCD segments go off 3 sec.
ROM, RAM, KEY check appears after
3 sec.
ROM RAM BAT
GPS1 OK OK PUSH KEY
GPS2 OK OK
GPS3 OK OK
CAL OK OK OK
DISP OK OK OK
DGPS OK OK
CNT= (STOP: PWR OFF)
Number of times test executed
GPS receiver
Processor unit
Display unit
Factory use
Internal beacon receiver
KEY TEST
Press each key one by
one. Pressed key’s name
appears here if key
is functioning properly.
To stop the test turn
off the power.
I/O TEST
ROM, RAM, KEY TEST
DISPLAY TEST
PROGRAM VERSION
DISPLAY
** = Program version no.
*** = No. of times test conducted
consecutively.
OK shown for normal;
NG (No Good) shown for error
Diagnostic test sequence
6. Turn off the processor unit to quit the diagnostic test1.