37
10
SERVICE MAN MENU
■ TIMING adjustment
The system cable length affects the sweep timing.
When the cable length adjustment is not correct, a
straight target is shown as a curved echo. Thus, a
cable length adjustment is necessary.
q Position your boat near a straight target such as
breakwater, wharf, etc.
w Push [–]/[
] one or more times to select
1
⁄8 or
1
⁄4 NM range.
e Push [TX (SAVE)]/[
] to display the target
on the screen.
r Push [MENU]/[ ] one or more times to select the
“SERVICE MAN” menu.
t Push [q] one or more times to select “TIMING
ADJ.”
y Push [u] to adjust the echo until it becomes straight.
(see below)
u
Push
[MENU]/[ ]
to return to the normal screen.
Proper adjustment Improper, pulling inward Improper, pushing outward
■ HDG adjustment
If the heading marker line differs from the exact bow
direction, correct the heading marker line as follows.
This function may be helpful when the scanner has not
been mounted exactly in the line with the bow.
q Line up the bow of the boat with an identifiable tar-
get.
w Push [TX (SAVE)]/[
] to display the target
on the screen.
e Push [MENU]/[ ] one or more times to select the
“SERVICE MAN” menu.
r Push [q] one or more times to select “HDG ADJ.”
t Push [t] or [u] to adjust, until the target matches
the heading marker. (the difference can be read out
on the menu screen)
y Push [MENU]/[ ] to return to the normal screen.
1
T.VECT
0.000NM
NM
CURS
SOG
H UP
000.0˚R
HDG
IR
ES
SERVICE MAN
SPD ADJ.
0.0
˚
HV
SETUP MEMORY
RANGE
24000 MONITOR
HEATER
5731.0H
TX TIME
30.0
OUTPUT
ENGLISH
VOLTAGE
MG
340
75
3.0
0.55
TIMING ADJ.
1/8 3/4 2 6 16 36
1/4 1 3 8 24
1/2 1.5 4 32
HDG ADJ.
1
T.VECT
0.000NM
NM
CURS
SOG
H UP
000.0˚R
HDG
IR
ES
SERVICE MAN
SPD ADJ.
10.0
˚
HV
SETUP MEMORY
RANGE
24000 MONITOR
HEATER
5731.0H
TX TIME
30.0
OUTPUT
ENGLISH
VOLTAGE
MG
340
75
3.0
0.55
TIMING ADJ.
1/8 3/4 2 6 16 36
1/4 1 3 8 24
1/2 1.5 4 32
HDG ADJ.
48
12
48
12
Push [ ] or [ ]
Angle difference
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