−4−
−5−
DESCRIPTIONS
1. MAIN UNIT
①
②
③
④
⑤
⑥
⑨
⑦
⑧
⑩
⑪
⑫
⑬
⑭
①
Power (
→
page
6
)
Power ON/OFF
②
RANGE (
→
page
8
)
Set the displayed depth range.
③
SHIFT (
→
page
9
)
Move displayed depth range.
④
GAIN
1
(
→
page
10
)
Adjust sensitivity of right display on single
freq. mode and dual freq. parallel mode.
⑤
GAIN
2
(
→
page
11
)
Adjust sensitivity of left display on dual freq.
mode.
⑥
ZOOM (
→
page
12
)
Move the expanded area toward sea surface
or sea bottom (When manual expansion is
selected) .
⑦
MODE A (
→
page
12
)
A mode ON/OFF
⑧
MODE B (
→
page
12
)
Switch Normal mode, Bottom Lock mode,
Auto Expansion or Manual Expansion.
⑨
MENU (
→
page
5
)
Show Menu mode
⑩
Direction (Up/Down/Left/Right) (
→
page
5
)
When menu mode is shown, it is used for
selecting items or changing the setting.
When the menu is not shown, Up/Down key
moves cursor toward sea surface or sea
bottom.
⑪
SET (
→
page
5
)
It is used when you execute selected items.
⑫
CLR (
→
page
5
)
It is used when you want to cancel menu.
⑬
Brightness (
→
page
6
)
Adjust the brightness of display.
⑭
Power Lamp (
→
page
6
)
It lights on when the power is ON.
2. MAIN UNIT (BOTTOM)/CONNECTIONS
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