Onwa KF-667 manual CONTROLS, Indications, Control Function

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1.CONTROLS, INDICATIONS

1.1Control Description

The equipment is so designed that even a first time user can quickly become acquainted with the operating procedure. Operation of each control or key is acknowledged by an alphanumeric message or symbol indication on the screen.

Control	Function
SHIFT-,SHIFT+	Change display start depth.
(Appears in text as [-],[+].)	Select options on menus.

ADVANCE (BRILL+AUTO)	Pressing the BRILL and AUTO keys together
	selects display advancement speed.

BRILL	Adjusts brilliance of display.

AUTO	Turns the automatic sounder adjustment feature on/off.

A-SCOPE	Pressing the SIG LEV and ALARM keys together displays the
(SIG LEV+ALARM)	A-scope display at the right 1/4 of the screen.

SIG LEV	Eliminates low intensity echoes (up to light-blue echoes) in
	two steps.

ALARM	Open/closes the alarm menu.

	Shift the Variable Range Marker (VRM).
MARKER ,MARKER	Set alarm zone.
(Appears in text as[ ]or[ ])	Select menu items.
	Set white marker.

RANGE	Sets the basic range of the display.

GAIN	Adjusts receiver sensitivity.
MODE	Turns unit on/off
	Selects display mode.

1-1

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Contents Model KF-667 Safety Instructions Table of Contents Introduction FeaturesPage Principle of Operation Display Unit System ConfigurationPower TransducerTD/Temp Control Function CONTROLS, IndicationsBrill Voltage IndicationsAdjusting Brilliance Turning the Power On/OffDisplay Mode Selection, Description Display mode selectionDisplay mode description 200K, 50K high frequency, low frequency modeDual frequency mode Marker Zoom Zoom mode high or low frequencyAutomatic Operation Adjusting GainHow it works Enabling automatic operationSelecting Picture Advance Speed Display Range SelectionBasic range selection Range shifting Erasing Weak EchoesScope Display Measuring Depth to a Fish SchoolMenu selection Menu OperationSystem Menu Main menu descriptionMenu item Description System Menu System menu descriptionSuppressing Low Level Noise Suppressing InterferenceAlarms Alarm descriptionSelecting Background and Echo Colors Silencing the buzzer Activating/deactivating an alarmWhite Marker Zero Line Interpreting the DisplayFish School Echoes Bottom EchoSurface Noise/Aeration Maintenance MAINTENANCE,TROUBLESHOOTINGReplacement of fuse General checkingMaintenance of the transducer CleaningBasic troubleshooting Basic TroubleshootingTransducer Check Water Temperature Sensor option CheckMENU1 Menu TreeKF-667 Specifications on Color Video SounderPower Supply Index