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JRC JFV-700HP Instruction Manual: Modifying The Characteristics Of The Gain Control (vr Curve); Operating Your Fishfinder With An External Trigger (ext. Trig. In)

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Modifying the characteristics of the GAIN control (VR CURVE)

The characteristics of the GAIN control can be modified.
The "LINEAR" characteristic changes so that the gain level uniformly
increases for GAIN control settings from "0" to "10". A gain level from
"4" to "7" is standard.
The "C CURVE" characteristic changes to nearly 70% of the maximum
gain with GAIN control settings from "0" to "3". A gain level from "1" to
"3" is standard (the default is "C CURVE").
Use the following procedure to modify the characteristics of the GAIN
control:
Display the FISH FINDER SETTING menu by pressing the
and
keys together.
Move control to "INITIAL SETTING" by pressing the
key, and display the INITIAL SETTING submenu by pressing the
key.
Move control to "VR CURVE" by pressing the
Select either "C CURVE" or "LINEAR" by pressing the
key.
Press the
key to return to the FISH FINDER SETTING menu.
MARK
Press the
key to return to the fishfinding display.
GRAPH
Operating your fishfinder with an external trigger (EXT. TRIG. IN)
Connection of an external trigger input signal line requires separate
modification of the rear panel. Such modification is optional (extra
charges required). If you desire this modification, please contact
your JRC dealer.
Set "EXT. TRIG. IN" to "ON" to operate your fishfinder by sending an
external trigger signal in order to include external fishfinding video in the
dual-display or suppress interference.
To make a dual display by receiving external fishfinding signals,
also set "EXT. SIG. IN" to "ON" seeing page 58.
Use the following procedure to operate your fishfinder with an external
trigger:
Display the FISH FINDER SETTING menu by pressing the
and
keys together.
Move control to "INITIAL SETTING" by pressing the
key, and display the INITIAL SETTING submenu by pressing the
key.
Move control to "EXT. TRIG. IN" by pressing the
Move control to "ON" by pressing the
Press the
key to return to the FISH FINDER SETTING menu.
MARK
Press the
key to return to the fishfinding display.
GRAPH
or
or
key.
or
or
or
key.
or
key.
FISH FINDER SETTING
INITIAL SETTING
INITIAL SETTING
FISH FINDER SETTING
INITIAL SETTING
INITIAL SETTING
EXT. TRIG. IN
3.OPERATIONS 57
VR CURVE

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