Furuno NAVNET 1724C - Manual (Page 215)

8. MAINTENANCE, TROUBLESHOOTING
8-6
8.6 Diagnostics
This paragraph provides the procedures for testing the equipment for proper operation.
Four tests are provided: Memory I/O test, Keyboard test, Remote controller test, and Test
pattern.
8.6.1 Memory I/O test
The memory I/O test provides for individual testing of the display unit, FURUNO BB GPS
Receiver, Network Sounder ETR-6/10N, ETR-30N and ARP, displaying program number
and checking for proper operation.
1. Press the MENU key to show the menu.
2. Press the SYSTEM CONFIGURATION soft key.
3. Press the SYSTEM SETUP soft key.
4. Press the TEST & CLEAR soft key.
5. Press the MEMORY I/O TEST soft key.
MEMORY
I/O TST
DISPLAY UNIT TEST
GPS SENSOR TEST*
NETWORK SOUNDER TEST**
RETURN
* = Requires a FURUNO BB GPS receiver.
** = Requires Network Sounder ETR-6/10N, ETR-30N.
MEMORY I/O TEST menu
1. Then, press appropriate soft key to start a diagnostic test.