Furuno GP-1640, Operator'S Manual

Page: 81 / 96

12-3
12.4 Error Messages
This equipment displays the following error
messages on the alarm menu to alert you to
possible trouble.
Table 12-3 Error messages
Error message Meaning, remedy
NO GPS FIX No GPS signal
VOLTAGE OF
INTERNAL BATTERY
IS LOW. Voltage of internal
battery is low. Request
replacement of battery.
12.5 Diagnostic Tests
Memory, I/O port test
This test conducts a general check of the
display unit and the antenna unit. The unit
displays the results for each device or
component checked as OK or NG (No Good).
1. Press the [MENU] key to open the main
menu.
2. Press the CONFIGURATION soft key to
show the configuration menu.
CONFIG
GPS 3D
SETUP NMEA PORT 1
UPLOAD/DOWNLOAD DATA
SETUP NMEA/DGPS PORT 2
SYSTEM MENU
RETURN
Configuration menu
3. Press the SYSTEM MENU soft key to open
the system menu.
SYSTEM
MENU
GPS 3D
SELF TEST
MEMORY/TRIP CLEAR
DEMONSTRATION MODE
RETURN
System menu
4. Press the SELF TEST soft key to open the
test menu.
TEST
GPS 3D
MEMORY
•
I/O TEST
TEST PATTERN
KEYBOARD TEST
RETURN
Test menu
5. Press the MEMORY•I/O TEST soft key to
start the test. The test results appears as
below.
PROGRAM: OK
No.14516100**
RETURN
TEST
SRAM: OK
DRAM: OK
PORT1: OK
PORT2: OK
INTERNAL
BATTERY: OK
GPS
RECEIVER: OK
No.48502370**
: Special connections are required to check these ports.
Otherwise, "--" appears.
**: Program Version No.
Memory, I/O test results
6. The test runs continuously. To return to the
self test menu, press the RETURN soft key.