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MAINTENANCE
New2001
■ Error message
Error message is displayed when a malfunction occurs that
has an error message programmed for it.
Message contents Description
GPS MALFUNCTION
NO GPS DATA
Appears when no GPS data is received.
RX MALFUNCTION
NO RCV
Appears when the transponder receive cir-
cuit has failed.
RX MALFUNCTION
CH A NOISE LEVEL
Appears when excessively strong atmo-
spheric noise, or noise signals from other
navigation equipment, are received on
Channel A.
RX MALFUNCTION
CH B NOISE LEVEL
Appears when excessively strong atmo-
spheric noise, or noise signals from other
navigation equipment, are received on
Channel B.
TX MALFUNCTION
NO TX POWER
Appears when no RF power is output, or
the transmit circuit has failed.
TX MALFUNCTION
CONTINUOUS TX
Appears when the protective circuit cuts off
the AIS signal after 1 second of continuous
transmission.
ANT MALFUNCTION
OPEN OR SHORT
Appears when the antenna is open or
shorted.
ANT MALFUNCTION
HIGH VSWR
Appears when the high VSWR* is detected
(the antenna is mismatched).
*Voltage Standing Wave Ratio
■ Diagnostics
There are two types of diagnostic tests performed — Monitor
test, Transponder test and Version information.
• Monitor Test
You can check whether all LCD segments turn ON and OFF
properly.
q Push [MENU] to enter the Menu mode.
w Push [∫] or [√] to select “Diagnostics,”
then push [ENT].
e Push [∫] or [√] to select “Monitor Test,”
then push [ENT].
r Push [∫] or [√] to select “All ON 2 Sec” or “All OFF 2 Sec,”
then push [ENT].
• All ON 2 Sec : All LCD segments turn ON for 2 seconds.
• All OFF 2 Sec : All LCD segments turn OFF for 2 seconds.
t Push [CLEAR] to return to the “DIAGNOSTICS” screen.
y Push [CLEAR] twice to exit the Menu mode.
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