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[FLOWCHART into ECHO DISPLAY]
Turn on the power
The hoist starts to lower the soundome unit.
"WAITING" appears on the screen.
Upper Limit Switch
OFF
Lower Limit Switch
ON
Sonar Scanning starts.
The hoist stops lowering the
soundome.
Normal Picture Display
appears
The hoist does not raise or lower the
soundome unit.
"WAITING" appears for 2 minutes.
And then "CHECK FUSE AT CONTROL-
BOX" appears next.
Sonar Scanning starts.
When the soundome does not protrude from
the Trunk Pipe, Normal Display does not
appear on the screen.
-5-
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