Marine GPS System User Manual

14-4
14.5 Diagnostic Tests
Memory, I/O port test
This test conduct a general check of the dis-
play unit and the antenna unit. The unit dis-
plays the check results for each device or
component checked as OK or NG (No Good).
1. Press the MENU key.
2. Press the [0] key to select SYSTEM
MENU.
3. Press the [1] key to select SELF TEST.
4. Press the [2] key to select MEMORY, I/O
PORT TEST.
MEMORY, I/O PORT TEST
ROM
RAM
VRAM
Battery
SIO (GPS)
SIO (NMEA)
SIO (DGPS)
MEMORY CARD
SPEED
TEMP
OK
OK
OK
OK
OK
OK*
OK*
OK*
0.0kt
+100.0°C
: ESC: Esc
*
If applicable; NG for no connection
or error.
Figure 14-1 Sample memory,
I/O port test results
5. The test runs continuously. To return to
the self test menu, press the MENU key.
Panel test
This test checks the keys for proper opera-
tion.
1. Press the MENU key.
2. Press the [0] key to select SYSTEM
MENU.
3. Press the [1] key to select SELF TEST.
4. Press the [3] key to select PANEL TEST.
The following display appears.
PANEL TEST
Cursor Pad
Program No.
02522530**
Press ESC key
3 times to escape
Figure 14-2 Panel test
5. Press any key except the POWER key.
The key's location on the display lights in
white if the key is functioning properly.
(The POWER key cannot be tested.)
6. To escape, press the ESC key three times.