3. MAINTENANCE & TROUBLESHOOTING
39
3. Press the
ENTER
key.
4. Press
S
to select Test and then press the
ENTER
key. The self test results appear
together with the key test screen, as
shown above.
5. To escape at any time, press the
MENU/
ESC
key three times.
Self test description
•
ROM, SDRAM and NMEA checks:
Result
is shown as OK or NG (No Good). For any
NG, try the test again. If the result is still
NG, contact your dealer for advice. (A spe-
cial connector is required to test NMEA.
Nothing is shown if the connector is not
connected.)
•
Control test:
Check controls for proper op-
eration.
•
Keys:
Push each key. The key's on-
screen location turns red or white alter-
nately and a beep sounds with each
push.
•
FUNCTION, GAIN and RANGE con-
trols:
Rotate the control while observing
its on-screen location. Clockwise rotation
increases the value; counterclockwise
rotation decreases it. Next, push the con-
trol. Its on-screen location turns red or
white alternately and a beep sounds with
each push.
•
MODE control:
Rotate the control. The
name of mode selected appears above
the control's on-screen location. Push
the control. The location turns red or
white alternately and a beep sounds with
each push.
XX
ROM check
SDRAM check
Color bar
NMEA check
XX=Program no.
xx=Program version no.
Water temperature*
Speed*
Voltage*
Control
test
89321
7587
5
SDRAM
* Updated every second.
For factory use
0252359-XX.xx
0252360-XX.xx
0252359-XX.xx
0252360-XX.xx
