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7. MAINTENANCE, TROUBLESHOOTING
7-4
7.4.2 Radar
Requires a network radar.
Radar troubleshooting
If… But… Then…
you pressed the
[POWER/BRILL] key and
the RADAR TX soft key to
show the radar picture
nothing appears on the display
! check that the signal cable between the
display unit and the antenna is firmly
fastened.
! Check that radar source is correct.
marks, legends appear no echo appears
! check in the power cable. If it is blown,
replace it.
picture not updated or
picture freezes
—
! check signal cable.
! turn the display unit off and on again.
tuning is adjusted sensitivity is poor
! Magnetron may need to be replaced.
Contact your dealer.
range changed radar picture does not change ! try to hit the [+] and [-] keys again.
! turn the display unit off and on again.
poor discrimination in
range
—
! adjust A/C SEA.
! Check heading and speed data for input.
true motion presentation
not working properly
—
! reselect true motion mode.
range rings are not
displayed
—
! Hit the RADAR DISPLY and RINGS soft
keys to display them.