3. MAINTENANCE, TROUBLESHOOTING
31
3.7
Diagnostics
If you feel your unit is not working properly,
conduct the diagnostic test to find the prob-
lem. If you cannot restore normal operation,
contact your dealer for advice.
1. Open the menu and select [Tests] under
[System] and press the
ENTER
key.
2. Use
S
or
T
to select [Diagnostic Test]
and press the
ENTER
key.
Test display
3. The ovals and circles at the right side of
the test display are for checking the con-
trols.
How to check key and TrackPad
: Press
each key and the arrows on the TrackPad
one by one. A key’s (or arrow’s) corre-
sponding on-screen oval "lights" in red if
the control is normal. Release hold and
the oval turns white.
How to check GAIN knob
: Rotate the
knob. The indication goes higher with
clockwise rotation; lower with counter-
clockwise rotation. Press the knob. The
knob’s corresponding on-screen circle
"lights" in red if the knob is normal. Re-
lease hold and the circle turns white.
How to check MODE knob
: Rotate the
knob. The corresponding on-screen circle
"lights" in red and white alternately and
the name of the setting selected appears.
4. To quit the test, press the
MENU/ESC
key
three times to close the test menu.
Program
no.
XX: Program version no.
Color bar
Key, control check
Factory
use
1
2
0252388-XX.XX
0252389-XX.XX
0252390-XX.XX
63
918133
No.
Test item
Content
1
ROM
"OK" is shown if
check is normal; "NG"
for fault.
SDRAM
NMEA
Reserved for factory
use. Special connec-
tor required. Nothing
appears unless the
connector is used.
2
Water temp.
Water temp. and
speed from the re-
spective sensors. Up-
dated every second.
Speed
Power
Voltage of power
source. Updated ev-
ery second.
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