VEXILAR EDGE LC-507 User manual

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 fea-
tures are designed to give the angler the best sonar for any situa-
tion. 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 provides 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 structure off 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 directly under the boat. Using

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these two beams together will allow you to locate fish, identify bot-
tom conditions, and even control your boat better. Imagine follow-
ing 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 fea-
tures are right on the front panel. Range, gain, auto/manual, and
clean line controls are only one button away. There are even sepa-
rate controls for each screen.With three feature presets you can quick-
ly 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 inter-
esting. Move to the next feature setup, #3, that you have programmed
for intense structure and fish finding (slower sweep speed, multi-
ple echo view, fish alarm, and hard bottom alarm). Want your orig-
inal 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 brought to life by a beau-
tifully detailed LCD. The 320 x 240 multi level pixel display is near
paper graph standards. Visibility on the brightest days and the dark-
est 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 sup-
port in the industry. With 2 year warranty coverage and quality ser-
vice 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 loca-
tion.
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 pro-
vided 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 clos-
est 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 in-
line 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 mount-
ing 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 trans-
ducer. If mounting space is tight, you can reverse the angle brack-
ets and face the flanges inward. Locate a spot
for each trans-
ducer 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

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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, slight-
ly. 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 sen-
sor assembly attaches to either trans-
ducer as shown. Pinch, or squeeze,
together the tabs at the top of the sen-
sor and slide the assembly down into
the tracks on the back of the trans-
ducer. 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 criti-
cal. 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 trans-
ducers 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, gen-
tly twisting it back and forth, making sure that there are no air bub-
bles in the glue between the transducer and the hull. Let the glue
dry completely before turning the unit on.
Figure 7
Figure 8

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TROLLING MOTOR MOUNTING
Install the bracket assem-
bly 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 brack-
et 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 bot-
tom 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 bot-
tom 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 leak-
age.
CAUTION - It is a good idea to restrain the speed wheel from spin-
ning freely while trailering the boat. Damage may result because there is
no water to lubricate the wheel bearings. A rubber band works good for
this.
PORTABLE MOUNTING
An optional suction cup
bracket can be used to tem-
porarily attach the transduc-
ers 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. Figure 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 auto-
matically 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 acti-
vate the internal simulator. This will play a short program, on the
display, that will simulate a real world situation. You can experi-
ment 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. You 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 dis-
play darker. Pressing the DOWN arrow will decrease the
contrast and make the display lighter.
CHANGING THE MODE
There are three memory modes in which you can store three dif-
ferent 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 sim-
ply 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 fea-
ture 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 dis-
play 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 deep-
er 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 multi-
ple 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 dis-
play. 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 rec-
ommended that you use the Automatic Gain Control feature, 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 decrease 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 decrease the level, press the down arrow. 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 adjust-
ment is available. The bottom signal should now be all black. Now,
increase the level until the bottom signal cleans out, similar to fig-
ure 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 properly 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. You 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 con-
trol buttons (C-Line, Gain, or Range).
To navigate in the menu, press the UP or DOWN arrows (CON-
TRAST) 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 Back-
light, 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 from. 1ST, 2ND, and 3RD. The 1ST
setting tells the Automatic Range Control to make sure 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 bot-
tom 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 but-
ton 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 feature. There
are five levels. The Automatic Gain Control, if selected, will adjust
the level of gain according to the conditions. A-GAIN-LEVEL sim-
ply 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. Press the
Left arrow to turn the feature OFF.
USING THE FISH ALARM
The Fish Alarm will sound a series of short beeps when the LC-
507 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, press the Down arrow
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 dis-
play 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 but-
ton. 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 fea-
ture. Then, press the Right or Left button to increase or decrease 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 neces-
sary. See the Trouble Shooting guide.
VOLT-CALIB
This feature allows you to calibrate the voltage reading, if nec-
essary.
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 distin-
guish 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 fish-
ing, 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 bot-
tom. 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-RNG-
MODE 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