Simrad Simrad SP70, Installation Manual

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Start-up procedures
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Starting up the transmitter
The following set of procedures requires two persons. One person
must be stationed on the bridge to operate the sonar, while one must
stay in the sonar room to make sure the Transceiver Unit works
properly.
Make sure that proper communication exists between the two
locations.
Note
Should problems occur in the sonar room, the person in the sonar
room must set the service switch
S202 to Off.
The following two procedures must be performed simultanously
by the person on the bridge and the person in the sonar room.
To simplify the test, remove the applicable pages from this manual.
Figure 39 Location of the
COM and TXEN LEDs