Error Message; Diagnostics - Icom MA-500TR Instruction Manual

8
MAINTENANCE

■ Error message

Error message is displayed when a malfunction occurs that
has an error message programmed for it.
Message contents
GPS MALFUNCTION
NO GPS DATA
RX MALFUNCTION
NO RCV
RX MALFUNCTION
CH A NOISE LEVEL
RX MALFUNCTION
CH B NOISE LEVEL
TX MALFUNCTION
NO TX POWER
TX MALFUNCTION
CONTINUOUS TX
ANT MALFUNCTION
OPEN OR SHORT
ANT MALFUNCTION
HIGH VSWR
46
Description
Appears when no GPS data is received.
Appears when the transponder receive cir-
cuit has failed.
Appears when excessively strong atmo-
spheric noise, or noise signals from other
navigation equipment, are received on
Channel A.
Appears when excessively strong atmo-
spheric noise, or noise signals from other
navigation equipment, are received on
Channel B.
Appears when no RF power is output, or
the transmit circuit has failed.
Appears when the protective circuit cuts off
the AIS signal after 1 second of continuous
transmission.
Appears when the antenna is open or
shorted.
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.
[∫]
[ENT]
[√]
[CLEAR]
[MENU]