Installation manual

Simrad MX500 | 223
However, when you clear the memory (also known as a
Cold Start), you will erase all waypoints and configura-
tion settings. A cold start sets the CDU back to factory
default settings.
Otherwise, record the failure(s) and contact your dealer
or SIMRAD to arrange for service or repairs. It is pos-
sible, but unlikely, that a cold start will correct other fail-
ures noted during the selftest. SIMRAD will need the CDU
serial number (from the rear panel) and the Software
Version number to help you further.
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CDU Cold Start - Clearing Memory to Factory
Default
When you Cold Start the CDU, you will erase all of your
waypoints and configuration settings. A cold start sets
the CDU back to factory default settings. Perform this
procedure if the CDU becomes non-responsive, fails one
of the self tests described above, or starts acting very
unusually.
To perform the cold start:
Turn the CDU off1 . There are three methods you can
use:
Press the a On/Off function key and highlight
the Yes softkey then press ENT. This causes a
software shut down of the CDU.
Press and hold the On/Off function key for up to b
5 seconds, this causes a hardware shut down of
the CDU.
Turn power off at the circuit breaker panel feed c
or power supply which feeds the CDU. This is
the preferred method.
Hold the 2 CLR button down while applying power
to the CDU; continue holding the button until you
hear a normal key click for the softkey.
Release the button.3
Press the 4 POS function key. If the position reads N
00° 00.0000, W 000° 00.0000, then the CDU was