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800' & Below
14 7
RANGE
the control
too far or it will
gray
line on the
target completely,
showing
no
black,
which makes
the
target
difficult to see.
-
12
p
C
At
t
4.
. a'
(t
p.
/.
,.
(•
t,a
STYLUS
REPLACEMENT
er fish arches
at low
speeds
and
CAUTION
—
High voltage
is
pre-
sent in the electronic section
when
the unit is turned on.
keeps high
speed
information from
being
comprçssed.
The
paper
speed
should be turned down
when
using
the unit in
deep
water.
1. TURN
THE UNIT OFF.
This will
prevent gaps
from
ap-
2.
Release both catches on the
top
of the case. Pull out and
down on the
top
of the case
front
to
expose
the
stylus
belt.
(See
Figure 25.)
3. The
stylus
belt rides over two
wheels located at the
right
edge
of the
platen assembly.
Move the front of the belt
,
:
pearing
in the record. In
fact,
the
microcomputer
will
automatically
slow
the maximum
speed
of the
chart
paper
when
operating
in
deep
water. The chart below
gives
the
points
where the maximum
speed
of the
paper
is slowed.
RANGE PAPER SPEED
10'llO' Fastest
Paper
DOWN to
position
the
stylus
at
the center of the
platen.
4.
Hold the
stylus
belt
stationary
with
one
finger,
and remove
the old
stylus by starting
at its
left
edge
and
moving
it out
from under the tabs on the
sty-
lus
holder.
Speed
120'-490' Medium Fast
Paper Speed
500'-790'
Medium Slow
Paper Speed
Slowest
Paper
Speed
The chart
paper may
be slowed
5. Before
installing
the new
sty-
lus,
be sure it
is bent
properly
by camparing
it to
Figure
33.
6. Refer to
Figure
34to be sure
the
new
stylus
is
positioned
correctly
under the tabs on the
holder. Be sure it moves
freely
in the
two slots. If
not,
bend
the
stylus
away
from the
edge
it is
rubbing
on until it does
move
freely.
7. After
installing,
if
the
stylus
won't
print
all
the
way
down
the
paper
as shown
in
Fig-
ure
35,bend
the
right leg
down
.
'
even further
by adjusting
the
pa-
per speed
control.
Remember,
if
gaps
in the record
appear,
turn the
paper speed
down until a solid
record is achieved. The
paper
speed may
also be slowed when
not
looking
for fish or to
simply
conserve
paper.
For more informa-
tion about
saving paper,
read the
Alternate Transmit and Print func-
tion in the Advanced
Operation
section.
GRAYLINE CONTROL
The GRAYLINE function can be
used to outline the bottom contour
The
range
function utilizes the
keyboard
to select
any range
be-
tween 0-10' and 2540'-2550'.
Please read this section
carefully
to
get
the most out of
your
X-1SA's
range capabilities.
so that more
pressure
is ex-
erted
against
the stainless
steel
plate.
If it still
does not
print
all the
way,
bend
the left
leg
down more
(but
not so far
that it
digs
into the
paper).
which
might
otherwise be hidden
beneath trees and
brush;
it can
also
give
clues to the
composition
of the bottom. A hard bottom re-
turns a
very strong signal causing
a wide
gray
line. A
soft,
muddy
or
Lower Limit
When
you
first turn on the
X-15A,
the
range
will be 0-60 feet.
(See Figure 13.)
To
change
to a
deeper range,
8. Close the front of the case.
weedy
bottom returns a weaker
simply press
the desired
depth
on
Latch both catches on
the
top
of the case.
signal
which is
emphasized
with
a
narrow
gray
line. Do not advance
the
keyboard,
and then
press
the
LOWER
LIMIT
key.
Figure
12
GRAYLINE "ON"
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