Lowrance StructureScan User manual

1
StructureScan Installation
Accessories
If you received this manual with a StructureScan accessory, you will notice that
some information in the document does not apply to the accessory. This manual has
installation instructions for your accessory, and accessory pack content tables on the
back cover.
Contents
Your StructureScan box is packed with the LSS-1 black box, a Power cable, fuse
and fuse holder, StructureScan transducer, mounting bracket, 15 foot (4.5m) ethernet
cable and a hardware kit. The transducer has a 20 foot (6m) cable attached.
Hardware Mounting Kit (Included)
Transom mount screws (2) Transducer attachment lock
nuts (6)
Bracket Assembly bolts (2) LSS-1 Mounting screws (4)
Bracket Assembly washers (4) Closed end crimp connector (1)
Bracket Assembly nuts (2) Zip ties (2)
Transducer attachment screws (6)
Required Tools and Supplies (Not Included)
Drill Phillips (slotted-head) screwdriver
Drill bits Marine grade above- or below-
waterline sealant
LSS-1 module, ethernet cable, StructureScan transducer, transducer
mounting bracket and power cable.

2
Installation
When mounting the StructureScan transducer, make sure the there is nothing around
the mounting location that could interfere with the StructureScan transducer sonar
beams.
Mounting Options
The StructureScan transducer can be
mounted on the transom, jackplate, step,
trolling motor or directly to your boat’s
hull.
When mounting it directly to the hull,
you must purchase a high-quality,
marine grade above- or below-waterline
sealant/adhesive compound.
Use the following table to determine
which mounting option is best suited to
your boat/installation preferences.
Sidescan
Downscan Sonar
Jackplate
Mount Step mount/
Direct mount
Transom mount
2.1”(55.5mm)
7.5”(190.7mm)
6.8”(173.4mm)
2.8”
(72.7mm)
7.5”(191.mm)
7.4”(188mm)
2.27”
(57.6mm)
8.26”
(210mm)

3
StructureScan Transducer Mounts
Transom Mount
(Page 6)
Keeps transducer in the water when the boat is•
on plane, allowing you to track bottom at high
speeds
Transducer angle can be adjusted so it is parallel•
with the water
Transducer more likely to collide with obstructions•
in the water and adds drag to the boat
Jackplate Mount
(Page 7)
Transducer is not in the water when boat is on•
plane; protects transducer and prevents drag
from transducer
Transducer angle can be adjusted so it is parallel•
with the water
Allows you to mount transducer without drilling•
holes in your boat
Does not track bottom when boat is on plane•
Step Mount
(Page 8)
Transducer is not in the water when boat is on•
plane; protects transducer and prevents drag
from transducer
Transducer angle can be adjusted so it is parallel•
with the water
Does not track bottom when boat is on plane•
Direct Mount/Step
(Page 9)
Transducer is not in the water when boat is on•
plane
Protects transducer and prevents drag from•
transducer
Transducer angle can not be adjusted so it is•
parallel with the water
Does not track bottom when boat is on plane•
Trolling Motor Mount
(Sold separately)
(Page 10)
Allows you to scan areas by moving trolling•
motor left/right
Can only be used when trolling motor is in the•
water
Rotating trolling motor quickly will impact sonar•
images

4
Bracket and Transducer assembly
The StructureScan bracket comes with four washers, two bolts and two nuts.
If you plan to mount the StructureScan transducer directly to the step (Step Mount)
or on the trolling motor, you do not need to assemble the bracket.
Assembling StructureScan transducer bracket
Attaching StructureScan transducer to bracket

5
Mounting the LSS-1
The LSS-1 can be mounted under the dash, in the rod locker or in the battery
compartment. Select a mounting location that will protect the LSS-1 from standing
water.
To mount the LSS-1:
Make sure the transducer cable is long enough to connect to the1.
LSS-1 from the desired transducer
mounting location. If the 20’
transducer cable is not long enough,
a 10’ extension cable is available (part
number: 000-00099-006).
Place the LSS-1 into the desired2.
mounting location where the
connectors will be easily accessible.
Use a pencil to mark the LSS-1 mount-3.
ing holes.
Drill the pilot holes.4.
Use the supplied No. 8 self-tapping screws to mount the LSS-1 to5.
the location.
Transducer angle
After mounting the StructureScan transducer, make
sure the transducer is adjusted so it will be parallel
with the waterline when moving at trolling speed.
Downscan Overlay
The StructureScan transducer should be installed within approximately 1 foot of
the broadband sounder transducer to get optimum performance from the Downscan
Overlay feature.
It is recommended you turn off Downscan Overlay when using your trolling motor
as the sonar source, unless the StructureScan transducer and broadband sounder
transducer both are installed on the trolling motor.
Downscan overlay performance could be degraded if the StructureScan transducer
is too far away from the broadband sounder transducer installed on the trolling
motor.

6
Transom Mount
The StructureScan transducer can be mounted just like a skimmer transducer, where
it is in the water when you are on plane or can be mounted so it is only in the water,
when you are moving at trolling speed.
Transom Mount Supplies (not included)
1/8” Drill bit (Transom mount pilot holes) Marine grade above- or below-
waterline sealant
Transom Mount (Aluminum Hull) Supplies (not included)
M4 Machine Screws Marine grade above- or below-
waterline sealant
Starboard (prevents corrosion between bracket and aluminum hull)
To Mount StructureScan on Transom:
Choose a transducer location and then route the transducer cable to1.
the location where the LSS-1 will be installed.
Place the transducer bracket against the transom and then align2.
the bottom of the transducer
with the bottom of boat. Use
a pencil to mark the pilot
holes through the slots in
the transducer bracket.
Drill the pilot holes into the3.
boat’s transom.
Apply a high-grade above-4.
or below-waterline sealant
to the pilot holes.
Align the bracket slots over5.
the pilot holes and fasten
the bracket to the transom
using your drill and the
supplied screws.
To make adjustments to transducer position, loosen the screws and6.
slide bracket up or down.
Connect the transducer cable to the LSS-1 sonar port.7.
StructureScan transducer mounted on
transom.
CAUTION: If you have an aluminum boat, install a piece of marine
starboard between the stainless steel StructureScan transducer bracket
and the transom to prevent corrosion.
!

7
Jackplate Mount
You can mount the StructureScan transducer inside or outside of the jackplate by
drilling through the jackplate, then inserting bolts though hinge hole in the side of
the bracket mount into the jackplate.
Jackplate Mount Supplies (not included)
M6 or 1/4” Drill bit (Jackplate Mount) pilot holes 1/4” (M6) jackplate mount bolts
To Mount StructureScan on Jackplate:
Choose a transducer location on the inside or outside of the1.
jackplate.
Adjust the jackplate up and down to make sure the transducer will2.
not obstruct jackplate movement.
Make sure nothing blocks the3.
sonar beam on either side of
the StructureScan transducer.
Route the transducer cable to4.
the location where the LSS-1
will be installed.
Move the transducer bracket5.
into the desired position and
then use a pencil to mark the
holes through the hinge hole
and hole in the bracket mount
on the side of the bracket.
Using a M6 or equivalent drill6.
bit, drill the holes into the
jackplate.
Slide the bracket inside the7.
jackplate and align the bracket
holes with holes you drilled in
the jackplate.
Slide M6 bolts with washers8.
into each hole on the side of
jackplate.
Guide the bolts through the StructureScan bracket holes.9.
Place a washer over the end of the bolts and tighten the nuts.10.
Connect the transducer cable to the LSS-1 sonar port.11.
StructureScan bracket
mounted inside the
jackplate. The bracket
can also be installed
on the outside of the
jackplate.
Jackplate

8
Step Mount
Mounting the StructureScan transducer under the step not only protects the
transducer from hitting objects in the water, but does not cause any drag on your
boat when it is on plane.
Step Mount Supplies (not included)
1/8” Drill bit (Transom mount pilot holes) Marine grade above- or below-
waterline sealant
To use Step Mount:
Choose a transducer location.1.
Route the transducer cable to the location where the LSS-1 will be2.
installed.
Move the transducer bracket into the desired position and then use3.
a pencil to mark the pilot
holes through the slots in
the bracket.
Drill the pilot holes.4.
Apply a high-grade above-5.
or below-waterline sealant
to the pilot holes.
Align the bracket slots over6.
the pilot holes and fasten
the bracket to the transom
using your drill and the
supplied screws.
To make adjustments to7.
transducer position, loosen
the screws and slide
bracket up or down.
Connect the transducer cable to the LSS-1 sonar port.8.
StructureScan transducer mounted
under the step.
Step

9
Direct/Step Mount (No Bracket)
When using the direct mount installation shown below, you MUST turn on the Flip
Left/Right feature. Refer to your Operation manual for more information.
Direct Step Mount Supplies (not included)
3/32 Drill bit (Direct/Step mount pilot holes) Marine grade above- or below-
waterline sealant
To use Direct Mount:
Make sure the boat’s step is the same length or longer than the1.
StructureScan transducer.
After selecting a mounting location, route the transducer cable to2.
the location where the LSS-1 will be installed.
Hold the transducer3.
in the desired
position and then use
a pencil to mark pilot
holes through the
mounting holes on
the transducer.
Drill the pilot holes.4.
Apply a high-grade5.
above- or below-
waterline sealant to
the pilot holes.
Align the transducer6.
mounting holes over
the pilot holes and
mount the transducer
to the step using self-tapping metal screws (not supplied). Do NOT
overtighten the screws; otherwise you could strip out the berglass
pilot holes or crack the mounting holes on the StructureScan
transducer.
Connect the transducer cable to the LSS-1 and then turn on the Flip7.
Left/Right feature in your display unit.
View underneath the step
Do not install
under boat hull!
NOTE: When using a Direct Step Mount, you must turn on the Flip
Left/Right feature in your display unit to ensure what is shown on the
left/right side on your display, corresponds with what is on the left/right
side of your boat.

10
Trolling Motor/Towsh Mount
The StructureScan transducer can be mounted on a trolling motor or towsh with
the purchase of a trolling motor mount accessory kit.
Trolling Motor Mount (sold separately — p/n: 000-00099-004)
Trolling motor bracket Hose Clamps (2)
No 8. Transducer attachment screws (6) Zip ties (4)
To mount transducer on trolling motor or towsh:
Make sure the transducer cable can be routed to the LSS-1.1.
Place the trolling motor bracket into a desired position on the trolling2.
motorortowsh.
Routeeachbracketclamparoundthetrollingmotorortowshand3.
through the slots on the other end of the
bracket.
Use a screwdriver to tighten the clamps4.
until each bracket is mounted securely.
Align the holes on the transducer with5.
the holes on the bracket.
Use the supplied transducer mounting6.
screws to attach the transducer to the
bracket.
Use zip ties to secure the transducer7.
cable and then connect the cable to the
LSS-1 sonar port.
If necessary, turn on the Flip Left/Right8.
feature in your display unit. Refer to your
StructureScan Operation manual for
more information.
NOTE: When mounting the trolling motor, you must turn on the Flip
Left/Right feature in your display unit to ensure what is shown on the
left/right side on your display, corresponds with what is on the left/
right side of your boat.
Trolling motor mount.
Towsh mount.

11
Powering the LSS-1
The LSS-1 power cable has four wires; red (+), black (–), yellow and blue. The
red wire is the positive and the black wire is the ground. The yellow wire can be
connected to an open accessory switch at the boat’s console, to the yellow wire on
your HDS power cable, or directly to the battery. The blue wire will not be used. Cut
it ush and cover the end with a wire nut or electrical tape.
If you connect the yellow wire to the yellow wire on your HDS unit, StructureScan
will be turned on/off when the HDS unit is turned on/off. Refer to the Power/Data
cable wiring diagram in your HDS Installation manual for more information.
Connecting LSS-1 to display unit/ethernet network
The LSS-1 has three ethernet ports allowing you to connect it to up to three HDS
units. It can also be connected to an ethernet hub, like the NEP-1.
The LSS-1 comes with a 15 feet ethernet cable, but cable lengths of 6, 15, 25 and 50
feet may be purchased separately.
Black wire
(to negative)
Blue wire
(not used)
Red wire, fused
(to positive)
LSS-1
Power Cable
Yellow wire
(to positive)
Represents
accessory switch
(usually at console)
Fuse and
fuse holder
12 Volt battery
LSS-1 Power Cable connections
NOTE: If you connect the yellow wire directly to the battery, you
MUST disconnect the battery when your boat is not is use; otherwise
StructureScan will drain the battery.

12
*988-0179-01A* © Copyright 2009
All Rights Reserved
Navico Holding AS
StructureScan LSS-1 Module (000-00099-002)
LSS-1 mounting screws (4) Closed-end crimp connector
Fuse and fuse holder
StructureScan Trolling Motor Bracket (000-00099-004)
Trolling motor bracket hose clamps (2) Zip ties (4)
No. 8 transducer attachment screws (6)
StructureScan Skimmer Bracket (000-00099-005)
Transom mount screws (2) Bracket assembly nuts (2)
Transducer attachment lock nuts (6) Transducer attachment screws (6)
Bracket assembly bolts (2) Zip ties (2)
Bracket assembly washers (4)
StructureScan Skimmer Transducer (000-00099-007)
Transom mount screws (2) Bracket assembly nuts (2)
Transducer attachment lock nuts (6) Transducer attachment screws (6)
Bracket assembly bolts (2) Zip ties (2)
Bracket assembly washers (4)
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