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7. MAINTENANCE, TROUBLESHOOTING
7-6
7.5 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.
7.5.1 Memory I/O test
The memory I/O test provides for individual testing of the display unit, GPS
Receiver GP-310B/320B, 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
ARP TEST***
* = Requires GPS Receiver GP-310B/320B.
** = Requires Network Sounder ETR-6/10N or ETR-30N.
*** = Requires ARP-equipped Model
1800/1900 series network radar.
Memory I/O test menu
6. Then, press appropriate soft key to start a diagnostic test.