1
Contents
General Description 2
Specifications 4
Installation 5
Operation 11
Menu Functions 15
Typical Indications 20
Maintenance 28
Trouble Shooting 29
Other Products 30
Replacement Parts 32
Service and Support 33
Founded in 1965, Vexilar, Inc. has a
long history of bringing revolutionary
technology to the sport fishing industry. Just some of the Vexilar
firsts include: the first liquid crystal display, the first fish alarm, the
first three color display, and the first CRT and straight line paper
graphs, for the sport fisherman.
Edge LC-507 Operation Manual
2
General Description
The Edge 507 is like having two depth sounders in one. The features are designed to give the angler the best sonar for any situation. The split screen dual frequency design allows you to compare
one view with the other to help you gain much more information
about what is below.
The dual frequency feature gives an you incredible advantage.
The Low frequency, 107 kHz, beam pr ovides a wide cone with allot
of sensitivity. This allows you to see fish, as true arcs, as they pass
under the boat. Also, it allows you to see breaks and str ucture of f to
the sides of you. The high frequency beam, 400 kHz, is an excellent
compliment. It gives you a precise narrow beam for locating fish
and sharp edges of structure that are dir ectly under the boat. Using
3
these two beams together will allow you to locate fish, identify bottom conditions, and even control your boat better. Imagine following a weed line using the Edge. Simply keep the weeds within the
wide beam, but outside the narrow beam.
The Edge is very easy to use. All of the important control features are right on the front panel. Range, gain, auto/manual, and
clean line controls are only one button away. There are even separate controls for each screen.With three feature presets you can quickly add or change any of the features to meet the new conditions.
Imagine fishing with preset #1, with all features set for slow trolling
along a sharp break. Then you decide to move to a new spot. Hit
the preset button to move you to the next feature setup, #2, that you
have programmed for high speed operation (super fast sweep and
higher gain). Now, down the lake you have found something interesting. Move to the next feature setup, #3, that you have programmed
for intense structure and fish finding (slower sweep speed, multiple echo view, fish alarm, and hard bottom alarm). Want your original settings back? Hit the preset button to get you back to setup #1
again. Internal memory backup insures that all feature selection will
be saved when the unit is shut off or disconnected from power.
The incredible features of the Edge are br ought to life by a beautifully detailed LCD. The 320 x 240 multi level pixel display is near
paper graph standards. V isibility on the brightest days and the darkest nights is unbelievable. The contrast control is right on the front
panel.
In addition to the innovative features, the Edge is a very high
quality device. It comes with the best warranty and product support in the industry. With 2 year warranty coverage and quality service and support you are sure to get the most out of the Edge. Got
a question or concern? One phone call is all it takes to quickly talk
to a technician who can help with anything you should need.
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• Operating Voltage:
• Current Draw:
• Power Output:
• Frequency:
• Beam Angle:
• Resolution:
• Sounding Rate:
• Display Size:
• Dimensions:
• Weight:
10 - 16 Volts (12 Volts Nominal)
500mA (800 mA w/Backlight On)
1600 Watts (Peak to Peak) 200 Watts (RMS)
107 Khz & 400 Khz
38˚ & 10˚
320 x 240 Pixels
1800/Min. Maximum
5” x 3 1/2"
9.2"H x 8.9"W x 3"D
3.1 Lbs. (Unit Only)
SPECIFICATIONS
• Depth Ranges:
0-5', 0-10', 0-12’, 0-15', 0-20', 0-25’, 0-30', 0-35’, 0-40', 0-50', 0-60',
0-70’, 0-80’, 0-100’, 0-120', 0-150', 0-200'
LC-507 CONNECTIONS
5
INSTALLATION
You will need to find a place to mount the LC-507 that will make
it easy to view and reach. You must provide the unit with power
and mount the transducer and sensor assembly in an effective location.
MOUNTING THE UNIT
Find a convenient place to
mount the unit. This may include
a boat seat, deck, dash, or a
portable case. Make sure that
there is plenty of room for the
unit to tilt freely without the
cables binding or stretching
behind the unit. Once you have
found the spot, remove the unit
from the gimbal bracket and
securely attach the bracket to the mounting surface. The screws provided are for wood/carpet or dash mounting applications. An
optional removable swivel bracket is available. See page 32.
Note - A Decorative Wire Cover has been
included to help make your rigging job look
good. Use this to cover up the large hole you’ll
need to drill to fit the connector through.
CONNECTING THE POWER
Plug the 2 pin connector into the back of the unit. Find the closest source of 12 volts and route the cord to it. Keep the cord away
from sharp metal edges and avoid tight places where the cord may
get crushed. Connect the white wire to positive and the black wire
to negative. If the cord provided is not long enough, more can be
added. Use 18 gauge wire minimum. Install the included 2 amp inline fuse, placed in the positive line, as close to the power source as
possible, to protect against shorts in the wiring.
6
MOUNTING THE TRANSDUCERS
Before you mount the transducers, you need to decide which
method is best for you and your boat. Your options are transom
mounted, in-hull mounted, trolling motor mounted, or portable.
TRANSOM MOUNTING
Locate the transducers, and bracket
hardware. Each transducer has a mounting bracket assembly which includes;
2 Angle Brackets
4 Bracket Screws
4 Washers
4 Nuts
4 Mounting Screws
Attach the bracket to the transducer as shown in Figure 5. The
flanges of the bracket normally point outward, away from the transducer. If mounting space is tight, you can reverse the angle brackets and face the flanges inward.
Locate a spot
for each transducer similar to
the one in figure
6. Keep in mind
that you need
clear water flow
across the face of
the transducers
to insure a clear
reading at all
speeds. Stay
away from rivets,
ribs, or strakes
that would be
Figure 5
Figure 6
Figure 5
7
just in front of the transducers. They will disturb the water and
scramble the reading. The 107 kHz transducer is more susceptible
to this effect than the 400 kHz transducer, so it is a good idea to place
it closer to the center of the transom.
FOR EACH TRANSDUCER, FOLLOW THESE
INSTRUCTIONS TO OBTAIN A PROPER
INSTALLATION.
After you attach the mounting bracket to the transducer , hold it
up to the boat where you are planning to mount it (see figure 6).
Mark the four holes on the transom, or mounting plate, so that when
the bottom of the transducer is flush with the bottom of the boat the
holes are located at the bottom of the bracket slots. This gives you
room to "fine tune" the position of the transducer and optimize your
reading after you've put the boat back in the water. Drill out the
holes and install the transducer bracket assembly. Tighten the screws
down securely. Be sure to seal any holes drilled into the transom
with silicone to prevent water from leaking into the boat.
Route the transducer cord up to the unit taking the same care as
you did when you routed the power cord. Make sure that the cord
is restrained and not allowed to flop around in the wind. This can
cause stress on the wire inside the cable, and possible breakage. Plug
the transducer connector into the back of the unit and screw the
retaining ring down tight.
After you have put the boat back in the water confirm that you
can maintain a bottom reading at all boat speeds. If not, loosen the
bracket screws and tilt the transducer some more. Keep the front
edge flush with the boat, but drop the back edge down a little more.
If changing this angle several times does not clear up the reading,
loosen the mounting screws and slide the transducer down, slightly. Repeat these adjustments until you get a clear reading. Make sure
that all mounting screws are tight. Finally, fill any gap between the
transducer and the hull with silicone to prevent a rooster tail from
shooting up behind the boat.
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ATTACHING THE SENSOR
ASSEMBLY
The speed and temperature sensor assembly attaches to either transducer as shown. Pinch, or squeeze,
together the tabs at the top of the sensor and slide the assembly down into
the tracks on the back of the transducer . Push it down until it stops, and
then, push the tabs back, outward,
until the catches snap into the holes
on the transducer.
CAUTION - It is a good idea to
restrain the speed wheel from spinning
freely while trailering the boat. Damage may result because there is no
water to lubricate the wheel bearings. Arubber band works good for this.
IN-HULL MOUNTING
Finding the best location for the
transducers before mounting is critical. Choose a flat smooth spot near the
center of the bilge and near the back
of the boat. It is a good idea to make
a "test run" before you permanently
install each transducer. This makes sure that you can,
indeed, get a reading through your hull, and when the boat is on
plane. Put about a half inch of water in the bilge and hold the transducers in the intended location. Move the transducers around until
you get the best reading. Mark the spot.
Remove each transducer from its housing as shown in figure 8.
To install, clean the spot of mud and oil. Using an epoxy or silicone
glue, make a puddle about the same diameter as the transducer on
the hull. Place the transducer in the glue. Press it down firmly, gently twisting it back and forth, making sure that there are no air bubbles in the glue between the transducer and the hull. Let the glue
dry completely before turning the unit on.
Figure 7
Figure 8
9
TROLLING MOTOR MOUNTING
Install the bracket assembly onto the transducers. Set
the two transducers down on
a flat surface, back to back.
Install the bracket assembly
as shown in figure 9. Use the
two included large cable ties
to attach the transducer to the
electric trolling motors lower
unit. Using the slots in the
transducer bracket, run the
ties through them and
around the motors lower
unit. Locate the transducers
on the bottom of the lower unit as in figure 10. Locate the 107 kHz
towards the front of the
motor. This transducer is
more susceptible to noise,
so keep it further away
from the propeller
Run the cables up the
shaft using smaller cable
ties to hold it in position.
Make sure that the cables
will not be damaged by the
movement of the trolling
motor. Plug the transducer
connectors into the back of
the unit and tighten the
retaining rings.
There is an optional one
piece mounting bracket,
part #TMB003. This bracket is more compact and
durable than the standard.
Figure 9
Figure 10
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SENSOR MOUNTING
If you mount the transducers inside the hull of the boat or on an
electric trolling motor (described on page 8) you will need to use
the provided sensor mounting bracket, instead of the transducer, to
mount the speed and temperature sensor.
Snap the sensor assembly into the
mounting bracket as shown in figure 11.
Hold the assembly up to the boat at the bottom of the transom. Stay away from rivets,
ribs, or strakes that would be just in front of
the sensor, as they can affect your speed
reading. Mark the two holes on the transom, or mounting plate, so
that when the bottom of the sensor is flush with the bottom of the
boat the holes are located at the bottom of the bracket slots. The bottom of the speed wheel should be below the transom line.
Locate the two mounting screws and drill the appropriate sized
holes in the transom. Install the sensor assembly and tighten it down
securely. Don’t forget to seal the holes with silicone to prevent leakage.
CAUTION - It is a good idea to restrain the speed wheel from spinning freely while trailering the boat. Damage may result because there is
no water to lubricate the wheel bearings. Arubber band works good for
this.
PORTABLE MOUNTING
An optional suction cup
bracket can be used to temporarily attach the transducers to the transom or side of
the boat. The cup should be
placed in a location where it
will not be torn off when the
boat goes high speed. The
optional BK0507 suction cup
mounting bracket works well
for this application.
Figure 11
Figure 12
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OPERATION
The LC-507 is a sophisticated depth sounder, yet very easy to
operate. All of the main sonar controls are right on the front panel.
There are even seperate controls for each beam. Figur e 13 shows the
control panel of the unit.
Figure 13
TURNING THE UNIT ON
Once the unit is connected to power you can turn it on.
Press the ON/OFF button. You will hear a series of short
beeps before the display shows up. To turn the unit off, press
this button again. All of your feature and menu settings will automatically be saved in memory. When you turn the unit on again,
these settings will be restored.
USING THE BUILT-IN SIMULATOR
When learning the operation of the unit, it may be helpful to activate the internal simulator. This will play a short program, on the
display, that will simulate a real world situation. You can experiment with all of the panel controls and menu functions and see the
results on the display.
To turn the simulator on, first make sure the unit is off. Now,
press the ON/OFF button and hold it in. You will hear the normal
series of beeps, followed by up to three more sets of beeps, about
three seconds later. Release the button after the last beep and the
simulator will start. There are three different programs. Each time
you start the simulator, a different program will start.
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ENTERING THE MENU
To enter the menu, press the MENU button. Y ou will now
be on menu page 1. Press the MENU button again to get to
page 2. Press it a third time to get to page 3, the final menu
page. To exit the menu, press the MENU button a forth time. You
can also press any of the sonar control buttons (C-Line, Gain, or
Range) to close the menu.
ADJUSTING THE DISPLAY CONTRAST
While in the normal display mode, press the UP and
DOWN arrows to change the display contrast. Pressing
the UP arrow will increase the contrast and make the display darker . Pr essing the DOWN arr ow will decrease the
contrast and make the display lighter.
CHANGING THE MODE
There are three memory modes in which you can stor e thr ee different control and feature setups. The number at
the bottom right corner of the display indicates
which mode you are in. When the unit is first
turned on, the mode should be set to 1. Pressing
the LEFT or RIGHT button will move you through
the modes. If the current mode is 1, and you press the RIGHT arrow
button, the mode will change to 2. Press it again to move to mode
3. Pressing the RIGHT arrow button, again, will move you back to
mode 1.
How each of these modes are setup is entirely up to you. Instead
of having to change several control and menu functions, you simply move to the next mode, which you have previously set up. There
is more information regarding the Mode feature in the section
“Typical Indications” starting on page 20.
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ADJUSTING THE DEPTH RANGE
You can adjust the depth range independently for
each beam. You can also use the Automatic Range feature to let the LC-507 do it for you. The current depth is
displayed in the lower left corner of the display. There
is also a depth scale displayed on the right side of each beam display which indicates the current Range setting for that beam.
To change the depth range push the up or down arrows. Up
changes to the next shallower range. Down changes to the next deeper range. Hold the button in to move through the ranges quickly.
Press the Abutton below the Range control to activate or deactivate
the Automatic Range feature.
When Auto Range is on, an R will
be displayed at the top of the
screen.
Range is simply how deep the
unit will read. Usually, you want
the unit to read the depth down to
the bottom, but there are times
when you may want to see multiple echoes, which are deeper than
the bottom.
ADJUSTING THE GAIN
There are separate Gain controls for each beam. Gain
controls how much of the sonar signal you see on the display. With too low of a Gain setting, you will miss some
things. With the Gain set too high, you will see to much. It is recommended that you use the Automatic Gain Control featur e, unless
you have a specific reason not to. To activate the Automatic Gain
Control feature, press the A button below the Gain control arrows.
The letter G will displayed at the top of the display indicating that
the feature is on. Press this A button once again to deactivate the
feature. To manually change the Gain level, simply press the up
arrow to increase the level and the down arrow to decr ease the level.
The Gain level is indicated in a bar graph at the top of the display.
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ADJUSTING THE C-LINE
C-LINE or Clean Line, affects the way the bottom and
fish are displayed. Clean Line will “clean out” harder
targets. To increase the level of C-LINE, press the up
arrow. To decr ease the level, pr ess the down arr ow. There
is no display indicator to tell you the level of C-LINE,
but the changes will be apparent in the display of the bottom and
targets.
The level of C-LINE is, largely, a matter of taste. However there
is a basic rule to follow. The C-LINE should clean out the bottom
signal, but not the fish. To get to this point, first set the C-LINE to
its minimum level. Press and hold the C-LINE down arrow. The unit
will beep once for each change in C-LINE level. Reduce the level
until the unit sounds a high pitched beep, indicating no more adjustment is available. The bottom signal should now be all black. Now,
increase the level until the bottom signal cleans out, similar to figure 22. You can increase the level more, if you wish, but do not turn
it up so high that you lose the black line indicating the leading edge
of the bottom.
The idea is that you find the level of Clean Line appropriate for
the depth and type of bottom you are over. A properly adjusted
Clean Line will make fish identification, near or on the bottom, very
easy. It also will make it easy to spot a harder area of the bottom. In
figure 22 you can see the difference between a pr operly set C-LINE
and one that is set too
low Notice how much
easier it is to distinguish
the fish that are close to
the bottom when the
Clean Line is adjusted
properly. If the Clean
Line is set too low the
fish tend to merge with
the bottom and become
invisible. If the Clean
Line is set too high you
can get the same results.
Figure 22
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MENU FUNCTIONS
To enter the menu, press the MENU button. Y ou will now be on
menu page 1. Press the MENU button again to get to page 2. Press
it a third time to get to page 3, the final menu page. To exit the menu,
press the MENU button a forth time. Or, press any of the sonar control buttons (C-Line, Gain, or Range).
To navigate in the menu, press the UP or DOWN arrows (CONTRAST) to change lines and the LEFT and RIGHT arrows (MODE)
to change the item.
MENU 1
THE BACK-LIGHT
The Back-light will illuminate the display in low light conditions.
There are three levels of brightness. To turn on or adjust the Backlight, press the menu button once. The Back-light item is the only
one on this page. Press the left or right arrow to change the setting.
You can choose from OFF, DARK, MEDIUM, and BRIGHT.
Note - If you are using the LC-507 with a small portable battery,
use the Back-light sparingly. It increases the current draw of the unit,
reducing your running time on the battery.
MENU 2
Within Menu page 2 are two boxes which contain the selection
items for each side of the display ,Right and Left. This page will
effect only on the currently selected mode. To change these settings
for a different mode, exit the menu, change to the desired mode,
then re-enter the Menu to make your changes.
RIGHT
This item determines the frequency of the Right, or full screen,
display. Use the left and right arrows to change the frequency
between 107 kHz and 400 kHz.
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ADJUSTING THE SWEEP SPEED
Sweep speed is how fast the display moves across the screen.
Generally, you want the Sweep speed to, roughly, match the speed
of your boat. Press the down arrow to move you down to the Sweep
item. Press the left or right arrows to change the setting. There are
six different Sweep speeds, ranging from SLOW to FAST, and
SUPERFAST. This highest sweep speed setting allows you to see
depth and structure changes while the boat is moving at a high rate
of speed.
A-RNG-MODE
This mode determines how the Automatic Range Control works.
There are three settings to choose fr om. 1ST, 2ND, and 3RD. The 1ST
setting tells the Automatic Range Control to make sur e that the first
echo, the bottom, remains in view at all times. 2ND insures that the
range will be adjusted so that the second echo of the bottom can
appear on the screen. Finally, 3RD allows the third echo of the bottom to be displayed.
A-RNG-MODE does not insure that the second and third echoes
will be visible, only that the range will be adjusted so that they can
fit on the screen if the sonar sees them. The type of bottom and the
Gain level will determine if the echoes appear.
To change the A-RNG-MODE setting, press the Down arrow button to move down to the item. Then, press the Left or Right arrow
buttons to change the setting.
A-GAIN-LEVEL
This item works with the Automatic Gain Control featur e. Ther e
are five levels. The Automatic Gain Control, if selected, will adjust
the level of gain according to the conditions. A-GAIN-LEVELsimply tells Auto Gain to keep the gain on the low side, in the middle,
or on the high side of automatic gain level.
To change the A-GAIN-LEVEL setting, press the Down arrow
button to move down to the item. Then, press the Left or Right arrow
buttons to change the setting.
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A-MODE
A-Mode gives an instantaneous, vertical, representation of the
depth below. It gives you the ability to recognize bottom changes
and targets before they scroll onto the normal display. It shows as
a narrow band just to the right of the scrolling display. There is an
A-MODE for each beam.
To activate the A-MODE, press the down arrow to move to the
item. Press the Right arrow button to turn the feature ON. Pr ess the
Left arrow to turn the feature OFF.
USING THE FISH ALARM
The Fish Alarm will sound a series of short beeps when the LC507 determines that there is a fish within the beam. Any target that
is separated from the bottom signal could sound the Fish Alarm.
Obviously, not all of these targets will be fish. The level at which the
alarm sounds is controlled by the Gain. If you find that the alarm is
sounding more than it should, reduce the gain level.
To activate the feature, press the Down arrow to move down to
Fish Alarm item. Press the Right arrow to turn the feature ON and
the Left arrow to turn it OFF.
LEFT
To select the frequency of the Left display , pr ess the Down arr ow
to move to the item. Then, press the Left or Right arrow buttons to
change the selection. A selection of N/A will cause the Right display to cover the full screen.
Note - SWEEP , A-RNG-MODE, A-GAIN-MODE, and A-MODE work
the same way for the Left beam as they do for the Right
HARD-BTM-ALM
The Hard Bottom Alarm will sound a series of long beeps when
the third echo of the bottom is visible on the Left display.
Important - If Auto Range is on, the A-RNG-MODE feature must
be set to 2ND or 3RD for the Hard Bottom Alarm to work.
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MENU 3
Menu page 3 controls features that affect all modes, no matter
which one is currently selected.
SUPER RANGE
Super Range controls the way the display appears when the
depth range changes. When Super Range is OFF, and the range
changes, you will see the point at which the range changed on the
display. This point will scroll across the screen until it disappears at
the far left side. When Super Range is ON, there will be no visible
point at which the depth changed. Super Range adjusts the entire
display to the new range.
To activate the Super Range feature, press the Right arrow button. To deactivate it, press the Left arrow button. It is best to turn
this feature ON, unless you have a specific reason to have it OFF.
DEPTH
The Depth feature controls how the digital depth number appears
at the bottom of the display. Your choices are OFF, SMALL, or
LARGE. OFF means no digital depth or voltage numbers. SMALL
displays the standard size digital depth. LARGE makes the digital
depth appear larger and easier to read.
To change the Depth setting, press the down arrow button to
move down to the item. Then, press the Left or Right arrow buttons
to change the setting.
DEPTH-UNIT
This feature lets you choose between Meters and Feet for depth
measurement. Press the Down arrow button to move down to the
item. Then, press the Left or Right arrow buttons to change the unit
of measure.
19
TEMP-UNIT
This feature lets you choose between Celsius and Fahrenheit.
Press the Down arrow button to move down to the item. Then, press
the Left or Right arrow buttons to change the unit of measure. A
temperature reading will appear on the screen whenever there is a
temperature probe plugged in.
TEMP-CALIB
This feature allows you to calibrate the temperature reading, if
necessary. Press the down arrow button to move down to the feature. Then, press the Right or Left button to increase or decr ease the
current value, indicated at the bottom of the menu screen.
SPEED
This turns the speed indicator on and off. Press the down arrow
button to move down to the item. Then, press the Left or Right arrow
buttons to change the setting.
SPEED-UNIT
This feature lets you choose between Miles Per Hour, Kilometers
Per Hour, and Knots. Press the Down arrow button to move down
to the item. Then, press the Left or Right arrow buttons to change
the unit of measure.
SPEED-PULSE
This feature allows you to calibrate the speed reading, if necessary. See the Trouble Shooting guide.
VOLT-CALIB
This feature allows you to calibrate the voltage reading, if necessary.
SYSTEM-RESET
System Reset will revert all setting back to the factory originals.
20
TYPICAL INDICATIONS
The LC-507 can display fish, bait fish, weeds, as well as distinguish the differences between a hard bottom and a softer bottom.
In the real world, there is no such thing as a typical indication. What
you see on the display is a representation of the water you are fishing, given the current settings of the unit. The Range, Gain, Clean
Line, and all other settings will affect the way your display will
appear in your situation.
FINDING BOTTOM
Once you have turned on the LC-507, in automatic range mode,
you must allow it time to find the bottom. This can take from just a
short moment to more than a minute, depending on the depth and
conditions. If you are operating in manual range mode, you will
need to adjust the range to find the bottom. As soon as the digital
depth appears, the graphical representation of the bottom will start
to move across the screen.
IDENTIFYING
BOTTOM TYPES
Figure 23 shows
what you may see
when moving over a
harder area of the bottom. The harder the
bottom is the better the
signal is reflected from
it. The result on the display is an increase in the number and strength
of the multiple echoes of the bottom. In order to view these changes,
the range must be set deep enough to see these multiple echoes. If
the Automatic Range Control is active, you must have the A-RNGMODE feature, in the menu, set to 2nd or 3rd. This will insure that
the range will be adjusted so the multiple echoes can be seen.
Although these echoes can be seen on either beam, the 107 kHz beam
will work better than the 400 kHz beam.
Figure 23
21
SEEING STRUCTURE
Here, structure is defined as anything from a drop-off to a rock
pile or weed bed. The comparison of the two beams gives you the
ability to see structure like never before. The narrow 400 kHz cone
allows you to see sharp breaks and individual items, such as rocks
or stumps. The wider 107 kHz cone will show you these same things
further away from your boat, but with less detail. Notice, in figure
24, as the
boat moves
over the
drop-off the
400 kHz
beam shows
the slope
precisely.
The 107
kHz beam,
on the other
hand, shows a much different signal. The slope appears to more
gradual and the bottom is much thicker. This is due to the wider
cone covering more area. Notice the extra line coming down next
to the bottom. This is another part of the slope that is off to the side.
Figure 25
shows a boat
passing over
a deeper
hole. Notice
how the narrow cone
draws the
hole very
well, but the
wide 107 kHz cone seems to smooth it out. If there are fish in the
hole you are more likely to be able to see them with the narrower
cone. However, if the fish are hanging on the edge of the hole, the
107 kHz beam may see them better.
Figure 24
Figure 25
22
SEEING FISH
Although the LC-507 does not use any type of fish identification
symbols on the display, it can be very easy to spot fish. Fish passing through the 107 kHz cone will appear as an arc, or partial arc.
Fish on the 400 kHz
beam can also be displayed as arcs, but will
most likely, appear more
like irregular blocks.
Here is how it works.
The 107 kHz beam has a
lot of power and a very
wide cone angle. When
the fish appears at the
edge of the cone it is far
away from the transducer. The display begins to draw the target on
the screen. As the fish gets closer to the center of the cone the tar get
appears to get shallower , or closer, and the unit draws the target line
getting shallower . When the fish passes to the other side of the cone
it appears to get deeper, or farther away. The unit now draws the
line going deeper, until it is no longer visible. The result is an arc
drawn on the display. If the fish passes on the edge of the cone you
will only see a partial arc. The principal is the same for the other
beam, but because of the smaller cone angle, full arcs are much less
likely to be seen. Fish within this beam will be much closer to you
than they may be with the wider 107 kHz beam. They ,also, are more
likely to be further away from the bottom. This is due to the “Dead
Zone” effect of the wider cone.
The Clean Line feature, when set to the proper level, can also
help you identify fish from floating debris. If the target appears
cleaned out, you can assume it's something significant, like a fish.
In heavy weeds this can be more difficult to see.
Figure 26
23
DEAD ZONE
Dead Zone is the area within
the transducers cone that is blind
to you. The wider 107 kHz beam
will have a much larger dead
zone than the narrow 400 kHz
beam. The LC-507 will mark bottom as the nearest distance it
sees. If you are fishing over a
slope, it may see the high side of
the slope, at the edge of the cone,
and mark that as bottom. The
fish that are hanging on the bottom in the center of the cone will
be invisible to you because they
are actually within the bottom
signal on your depth finder. A
narrower beam angle will reduce this effect.
The Clean Line feature can, also, allow you to see inside the dead
zone. If it is properly adjusted, you can see fish arcs within the
“cleaned out” section of the bottom. The further down into the bottom signal they appear, the farther away from the boat they are.
SURFACE CLUTTER
The line of information going across the top of the display represents the surface of the water. This line can get quite wide, at times,
due to surface clutter. Tiny marine life, such as algae or plankton,
can be responsible for this. Choppy or rough waters can also be a
cause as tiny air bubbles are forced down under the surface. Surface
clutter has little effect on the performance of the unit. It can, however , make things dif ficult to see in shallow water. The 107 kHz beam
will be more likely to display this clutter than the 400 kHz beam.
Figure 27
24
HIGH SPEED OPERATION
The LC-507 can read depths at almost any boat speed. Due to
the limited speed of the LCD display, the displayed bottom may be
some distance behind you, depending on how fast the boat is traveling and the currently selected Sweep Speed. Use the A-Mode feature to help you with high speed readings. Here, high speed is
defined as any speed at or above the speed at which the boat planes
out.
The LC-507 has a Super Fast Sweep Speed setting. This maximum Sweep Speed should be used when the boat is traveling at
higher speeds. The faster sounding rate will greatly help in the identification of fish and structure under the high speed conditions.
Once the boat starts to plane, turbulence will develop behind
the transom. If your transducer is poorly mounted, the unit will lose
the bottom at a certain boat speed. This is due to all of the air bubbles in the turbulent water . Readjustment of the transducer mounting should solve this problem. In general, you will have better high
speed readings with the 400 kHz beam than you will with the 107
kHz beam.
SHALLOW WATER
OPERATION
When the LC-507 is in
the automatic range and
gain modes, it automatically senses the bottom
depth and tries to keep
the best view at all times.
Although the display
may not show it, the LC507 is monitoring basic
sonar signals, such as the bottoms second echo and various target's
signal strengths. This way it can maintain the optimum gain level,
automatically, for you.
In very shallow water (less than 3 feet) the unit can get "over-
Figure 28
25
welmed". In this condition the unit will show erroneous information. The graphic display will become mostly black and the digital
numbers on the display will read no depth or depths that are much
deeper than reality. These depths are actually multiple echoes of the
real bottom. It is important to use caution when navigating in shal-
low waters. Use common sense. Don't rely solely on your depth
sounder.
It often helps to turn off the automatic features and manually
change the range to the 5 or 10 foot range. Also, turn the gain level
down to the minimum. If the digital depth reading doesn't seem
right, it is probably a multiple of the correct depth. Use the graphic display as a better reference.
USING THE MODE FEATURE
There are three memory modes in which you can stor e thr ee different control and feature setups. The point of the Mode feature is
to allow you to quickly change several menu and control panel items
at one time. To make this feature work for you, you will need to go
into each mode and program the settings you want.
If you are new to the operation of the LC-507, it is recommended that you program each mode as described below. This should be
a good “starting point”. It will also help you get accustomed to the
use of the Mode feature, as well as, the effect of the menu features.
When programmed these new mode settings will give the following results.
Mode 1 -
Mode 2 -
Mode 3 -
Basic settings to give the best view of the bottom on
both beams.
Modifies settings to look at multiple bottom echoes.
Hard Bottom Alarm and Fish Alarm are on.
Modifies settings to give good results for high speed
operation, 400 kHz at full screen.
Keep in mind that your final settings will, most likely, differ from
these, given your application and conditions.
26
Turn the LC-507 on and change the mode to number 1, if necessary. The mode number is displayed at the far lower right corner of
the screen. Now, press the menu button. The first menu page will
appear . Pr ess the Menu button again to get to the second page. The
darkened box indicates the item you are currently adjusting. The
activated selection will be indicated by an open box around it. Modify
the settings to match the following.
RIGHT: 107 400
SWEEP: S · · ·
F SF
A-RNG-MODE: 1ST
2ND 3RD
A-GAIN-LEVEL: L · M · H
A-MODE: OFF ON
FISH-ALARM: OFF
ON
LEFT: 107
400 N/A
SWEEP: S · · · F SF
A-RNG-MODE: 1ST 2ND 3RD
A-GAIN-LEVEL: L
· M · H
A-MODE: OFF
ON
HARD-BTM-ALM: OFF ON
Now, press the Menu button two more times to exit. Change to
Mode 2 and then go back to Menu page 2.
RIGHT: 107 400
SWEEP: S · · ·
F SF
A-RNG-MODE: 1ST
2ND 3RD
A-GAIN-LEVEL: L M H
A-MODE: OFF ON
FISH-ALARM: OFF ON
LEFT: 107
400 N/A
SWEEP: S · · ·
F SF
A-RNG-MODE: 1ST 2ND 3RD
A-GAIN-LEVEL: L M H
A-MODE: OFF ON
HARD-BTM-ALM: OFF ON
For now, make sure
that the Automatic
Range and Automatic
Gain Controls are
activated on all three
Modes. Also, once on
the water, you will
need to adjust the
Clean Line for each
Mode.
Remember,
when using the
Hard Bottom
Alarm the ARNG-MODE
feature must be
set to 2ND or
3RD.
27
When using the Fish Alarm, use the A-GAIN-LEVEL feature to
control the size of the fish that the alarm sounds on. With a higher
gain setting the alarm will sound on smaller fish. The A-GAINLEVEL will have the same type of an effect on the Hard Bottom
Alarm as well.
Finally, press the Menu button two more times to exit. Change
to Mode 3 and then go back to Menu page 2.
RIGHT: 107 400
SWEEP: S · · · F SF
A-RNG-MODE: 1ST 2ND 3RD
A-GAIN-LEVEL: L · M · H
A-MODE: OFF ON
FISH-ALARM: OFF ON
LEFT: 107 400 N/A
SWEEP: S · · · F SF
A-RNG-MODE: 1ST 2ND 3RD
A-GAIN-LEVEL: L M H
A-MODE: OFF ON
HARD-BTM-ALM: OFF ON
You can use the built-in simulator to see the effects of these settings. After you have used the LC-507 on the water, and you feel
more comfortable with it, change these settings to better match your
application, conditions and preferences.
When N/A is
selected for the Left
beam, any selections
for this beam will
have no affect on the
LC-507s operation.
28
MAINTENANCE
Maintenance for the LC-507 is very simple. There, simply, is
not that much to maintain. Because of this, problems can sneak
up on you if you're not careful.
The unit should be removed whenever the boat is parked to
guard against theft. Don't store it in a place that may fill with
water.
Power connections need constant checking. Corrosion can
develop and cause intermittent or loss of operation. Spray the
power connector and battery terminals with silicone to prevent
this. Remove the connections before you put the boat away for
storage.
The transducers should be checked for scratches and cracks
which can reduce the units sensitivity. Cuts or breaks in the cord
should be repaired as soon as possible, so corrosion doesn't attack
the wire.
Periodically clean the face of the transducer with a mild detergent. An oily film can develop which will cause weak readings.
Clean the face of the unit with a mild soap. Don't submerge the
unit when cleaning.
29
Possible Cause
TROUBLE SHOOTING
Unit is turned on, but there is no
display.
Contrast is adjusted too low.
Increase contrast.
Unit will not turn on.
Check for proper battery polarity and that you have fully
charged, working batteries.
Unit runs well for a short time,
then the unit quits.
Bad battery. Voltage may be
good when checked, but may
fall as it is loaded.
Unit runs and shows display
light, but does not read depth.
T ransducer is not plugged in or
not in contact with the water.
Unit works, but needs high gain
to see bottom or targets.
Transducer is not aimed correctly or needs to be cleaned.
Unit works, but has too many
lines on the display. Can't tell
what is what.
Many air bubbles or very small
targets in the water. Electrical
noise from another device.
Unit works well when sitting
still or at slow trolling speeds,
but loses reading when the boat
speeds up.
Improper transducer installation
or adjustment. There is a loss of
clear water flow across the face
of the transducer when the boat
reaches a certain speed.
Unit works, but shows noise
when the engine is started or the
electric trolling motor is turned
on.
Improper ground or missing
ground in electrical system.
Defective engine or trolling
motor.
Temperature does not show or
is not accurate.
Temp sensor is not plugged in
or is not in the water.
Symptom
If this trouble shooting guide does not help, please
contact our customer service department. Contact information is on page 33.
Speed indicated does not show
or is not accurate.
Speed is not turned on in
menu. SPEED-PULSE feature
needs calibrating (contact customer service)
30
OTHER VEXILAR PRODUCTS
THE 107 PRO
The 107 Pro is loaded with advanced features
that help even veteran anglers zero in on structure and game fish. The low frequency 107 KHz
output generates power to spare and a wide, 38º,
cone angle.
The Boundary Waters LC-10
Powered by eight AAbatteries, the compact,
ultra lightweight Boundary Waters LC-10 is perfect for canoes, portages, or fly-ins. It has great
performance and plenty of friendly features.
The FL-8SLT Color Flasher
The FL-8SLT is a compact and light-weight
flasher designed for serious anglers. Besides indicating depth, the unit also shows changes in bottom content and conditions. It has three display
colors. Red indicates a strong signal and green
indicates a weak signal. Orange is a medium signal.
104 DEPTHERM
The fishing odds are on your side when you use
Deptherm. It tells you quickly and accurately what temperatures are below your boat and it also tells you the temperature at a specific depth. If your Deptherm indicates that the
water temp is wrong for the species you're after, you can
quickly move.
31
PORTA CASE
The unique Vexilar Flasher Porta Case holds
your FL-8SLT, 107 Pro, or other manufacturer's
sonar or GPS. It has space for your transducer, a
rechargeable battery, and the Vexilar Battery Status
Indicator. Just set it down on the ice or boat seat,
position the transducer and turn on your unit. The
round base is just the right size to fit down inside a standard 5 gallon bucket.
12 VOLT SEALED LEAD ACID BATTERY WITH
BATTERY CHARGER
This battery was designed for sportsmen on
the go, with rugged construction and design features that make it ideal for summer and winter
use. With a near "bulletproof" charger, this system packs enough
power to run your equipment for hours, and for years to come.
CHARGE GUARD
The Charge Guard is a foolproof way to get the
right charge into your deep cycle and cranking batteries. Just connect the Charge Guard to your battery,
hook up your battery charger, and walk away . It works
with most battery chargers and gives your battery the
correct charge every time by automatically stopping the charge when
the battery is full.
BATTERY STATUS INDICATOR
The Vexilar Battery Status Indicator works with all
12 volt batteries and can be permanently mounted or
used as a portable unit. It monitors your battery constantly as it is discharging and charging. Battery charge
status is indicated with a highly visible red LED light.
32
LC-507 REPLACEMENT PARTS
If you need additional or replacement parts for your LC-507 you
can order them from your dealer or directly from the factory.
TB0071 107 kHz Transducer Assembly, 3 Pin
TB0072 400 kHz Transducer Assembly, 3 Pin
TBH001 Transducer Housing Only
PC0002 Power Cord Assembly, 2 Pin, w/Fuse
TP0002 Temperature Probe, 8 Pin
ST0002 Speed and Temp Probe, 8 Pin
STB001 Bracket for ST0002
HSB003 TransomMount Transducer Bracket Assembly
TMB002 Electric Trolling Motor Transducer Bracket, 2 Piece
TMB003 Electric Trolling Motor Transducer Bracket, 1 Piece
STB001 Sensor Mounting Bracket
GB0003 Gimbal Bracket
GBK003 Gimbal Knobs, 2 Knobs with Washers
SM0001 Swivel Mount Platform for All Models
33
SERVICE AND SUPPORT
If you find that you need help, feel free to contact us. Please have
ready the model number and, if possible, the serial number of your
product. Be sure to read the Trouble Shooting sections first.
Address
Vexilar, Inc.
200 W. 88th St.
Minneapolis, MN, 55420-2752
Telephone
(952) 884-5291 (8 am to 5 pm M-F Central Time)
Fax
(952) 884-5292
Web Site
www.vexilar.com
Email
service@vexilar.com
34
NOTES
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