25. MAINTENANCE AND TROUBLESHOOTING
25-7
25.6 Consumable Parts
The table below lists the consumable parts in the antenna unit, Monitor Units, Proces-
sor Unit and Sensor Adapters. Replace the parts before their expected expirations.
Consumable parts
position cannot be
found
• position sensor(s) is not select-
ed on the [POSN] page.
• position sensor is turned off.
• sensor cable has loosened.
• Check position sensor selections.
• Turn on position sensor.
• Check cable.
ENC chart cannot be
displayed
• No ENC chart for area.
• Dongle not connected.
• Open ENC chart from [Manage
Charts] dialog box
• Connect dongle.
past track is not
displayed
• past track is not selected to be
visible.
• Open [Tracking] page of [Symbol
Display] menu and select [Own
Ship Past Tracks] to [Primary] or
[Secondary] as appropriate.
monitored user chart is
not displayed on chart
display
• user chart is not selected to be
visible.
• Open [Mariner] page of [Symbol
Display] menu and select parts to
show.
user chart is not dis-
played on radar display
• user chart is not selected in
Voyage navigation mode.
• Select user chart in Voyage navi-
gation mode.
the message "Nearing
memory usage limit.
Click the Restart button
to restart the system to
prevent trouble." ap-
pears
• the memory usage limit for soft-
ware is close to capacity. Per-
formance may be affected.
If you need to save your work, click
the [Later] button then restart the
equipment. If you don't need to save
your work, click the [Restart] button.
the message "Memory
usage limit reached.
Click the Restart button
to restart the system to
prevent trouble." ap-
pears
• the memory usage limit for soft-
ware is reached. Performance
may be affected.
Click the [Restart] button to reset the
power. No other operations are avail-
able than restart.
both the display mode
buttons [RADAR] and
[CHART for RADAR]
are yellow
• the memory usage limit for soft-
ware is close to capacity. Per-
formance may be affected.
Stop all operations and restart the
equipment.
Part Type Lifetime Remarks
Antenna Unit
Magnetron FNE1201 5,000 hours Check number of hours
used at TX time. Reset
time then adjust the PM
gain after replacement
(see section 2.31).
MG5436 5,000 hours
MG5223F 7,000 hours
Motor BV2-K155 10,000 hours For S-band radar
BV2-K156 10,000 hours For X-band radar
Monitor Unit
If… then… Remedy
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