Furuno GP-3500 - Manual (Page 175)

11. MAINTENANCE & TROUBLESHOOTING
11-5
11.6 Diagnostics
This section provides the procedures for testing the equipment for proper
operation. Three tests are provided: MEMORY I/O TEST, KEYBOARD TEST and
TEST PATTERN.
11.6.1 Memory I/O test
The memory I/O test checks each memory circuits and signal I/O circuit,
displaying program number. Results for device checks are shown as OK or NG
(No Good). For any “NG”, request service.
1. Press the [MENU] key to show the main menu.
2. Press the [0] key to show the SYSTEM SETUP menu.
3. Press the [6] key to show the TEST & MEMORY CLEAR menu.
0-6. TEST & MEMORY CLEAR
1. MEMORY I/O TEST
2. KEYBOARD TEST
3. TEST PATTERN
4. MEMORY CLEAR
5. GPS COLD START
6. SET PASSWORD
7. RESET PASSWORD
TURN KNOB TO SELECT MENU AND PRESS KNOB TO ENTER.
OR PRESS APPROPRIATE NUMERIC KEY TO SELECT MENU.
Test & memory clear menu
4. Press the [1] key to start the MEMORY I/O TEST.