1-1
1. OPERATIONAL OVERVIEW
1.1 Control Unit
All operations are carried out from the control unit. All controls quickly respond to
the operator’s command and the associated reaction can be seen on the screen
almost immediately.
F1 F2
F3 F4
RANGE GAIN
POWER
Turns power
on/off.
Chooses display
range; chooses
menu item.
Adjusts receiver
sensitivity; chooses
menu option.
Trackball
Positions trackball
mark.
Sets transducer
tilt angle.
Raises the transducer.
Lowers the transducer.
Execute assigned
program; register
function key program.
FISH: Inscribes fish mark.
EVENT: Inscribes event mark.
TARGET LOCK: Tracks trackball-selected
position.
R/B: Displays range and
bearing marks.
FISH ALARM: Turns fish alarm on/off.
STABILIZER: Compensates for affects
of ship's pitching and
rolling. (Requires Motion
Sensor MS-100.)
OFF CENTER: Shifts the display.
ALARM ZONE: Sets fish alarm zone.
DELETE MARK: Deletes selected mark.
MENU: Opens/closes menu.
TILT
FISH
EVENT
TARGET
LOCK
OFF
CENTER
STABI-
LIZER
DELETE
MARK
MENU
R/B
ALARM
ZONE
FISH
ALARM
Control unit