Raymarine L365 User Manual
Distributed by
Any reference to Raytheon or
RTN in this manual should be
interpreted as Raymarine.
The names Raytheon and RTN
are owned by the
Raytheon Company.
FishFinder L365
Instruction Manual
Raymarine
Contents
Echo sounding – How it works (inside front cover)
FishFinder L365 – Features and functions i
For information and service ii
1 Introduction 1
About the FishFinder L365 1
System Components 2
Standard Equipment 2
Standard Transducers 2
Optional Accessories 2
2 Installation 4
About the Transducer 4
Selecting the Correct Type of Transducer 5
Assembling the Transducer Bracket 6
Positioning the Transom-Mount Transducer 6
Mounting the Transom-Mount Transducer 9
Mounting the Optional Sidelooker Transducer 10
Installation Notes – Thru-Hull Transducer 11
Installation Notes – In-Hull Transducer 12
Installation Notes – Trolling Motor Transducer 13
Installation Notes –
Transducer for Speed and Temperature Only 14
Mounting the Display Unit – Standard Mount 14
Dismounting the Display Unit 16
Mounting the Display Unit – Flush Mount 16
Installing the Transducer Cable 17
Installing the Transducer Cable – Sidelooker Option 19
Installing the Transducer Cable –
Separate Speed and Temperature Sensors 20
Making the DC Power Connections 20
Calibrating the Sensors 22
3 Operating Instructions 24
Controls on Display Unit 24
Turning the Power On and Off 25
Setup Memory 25
Lamp/Contrast Menu 26
Operating Pages 28
iv
FishFinder Page 29
Choosing a Frequency 34
Fish Indications 35
Bottom Indications 36
Performance Modes 37
Zoom Page 38
A-Scope (Bottom Coverage) Page 40
Digital Page 42
Sidelooker Page 43
4 Setup Instructions 47
The Setup Menu 47
Range Setting 48
Sensitivity Setting 49
Chart Speed Setting 50
Zoom Setting 52
Frequency Setting 53
Resetting the Log 54
System Setup Display 55 Fish Alarm 58
Simulator 56 Buzzer 58
Fish Symbol 56 Depth Units 59
White Line 56 Speed Units 59
Sidelooker 56 Temp Units 59
Speed Cal 57 Speed 59
Temp Cal 57 Log 59
Shallow Alarm 57 Temp 59
Deep Alarm 58
Setup Instructions for Sidelooker 60
Resetting the Unit to Factory Defaults 62
Default Settings 63
5 Maintenance and T roubleshooting 64
Cleaning Instructions 64
Troubleshooting Suggestions 64
Servicing a Thru-Hull Transducer 68
How to Contact Raymarine 68
6 Specifications 72
General Information 72
FishFinder Functions 73
Connector Diagrams 74
Glossary of Terms 75
v
List of Figures
Figure Page
Unit in Use Inside front cover
Front Panel i
1-1 Typical Installation 1
2-1 Transducer Types 5
2-2 Assembling the Transducer Bracket 6
2-3 Transducer Mounted on Tr ansom 7
2-4 Transducer Bracket, Side View 7
2-5 Correct Mounting Position 8
2-6 Mounting the Transducer 8
2-7 Installing the Sidelooker Transducer 10
2-8 Installing the Sidelooker Transducer -
T rolling Motor 13
2-9 Installation on Bracket 14
2-10 Dimensions 15
2-11 Flush-Mount Installation 16
2-12 Disassembling from Bracket 17
2-13 Installing Cable on Transom 18
2-14 Cable for Sidelooker Transducer 19
2-15 Cable for Speed and Temperature Sensor 20
2-16 DC Power Connections 2 1
3-1 Display Panel 24
3-2 Lamp/Contrast Menu 26
3-3 Selecting DisplayPages 27
3-4 FishFinder Page 29
3-5 Fish Indications 36
3-6 Bottom Conditions 37
3-7 Zoom Page 38
3-8 A-Scope Page 40
3-9 Digital Page 42
3-10 Sidelooker Feature 43
3-11 Sidelooker Page 44
4-1 Moving Through the Setup Menu 47
4-2 Range Settings 48
4-3 Sensitivity Setting 49
4-4 Changing the Chart Speed Setting 50
4-5 Chart Speed Setting 51
4-6 Zoom Settings 52
4-7 Frequency Setting 53
4-8 Resetting the Log 54
4-9 Reaching the System Setup Display 55
4-10 System Setup Display 55
4-11 Sidelooker Range Settings 61
4-12 Sidelooker Sensitivity Settings 62
5-1 Sample Mailing Label 70
6-1 Connector Diagrams 74
vi
1 – Introduction
About the FishFinder L365
The FishFinder L365 is a system that uses sound waves (“sonar”) to
detect fish and show the bottom of a lake or sea. The system includes a
transducer and a display unit, connected by a cable. The transducer
sends high-frequency sound waves down into the water. These sounds
strike fish, the bottom, or other objects in the water, and return as echoes.
The FishFinder then interprets these echoes and presents a display.
The FishFinder L365 can handle many different jobs:
• detect the presence of fish below the boat
• trigger an alarm when fish are found
• measure the depth of the water
• set alarms for minimum and maximum depth
• show the shape of the bottom
• determine whether the seabed is hard or soft
• measure the speed of the boat and the distance traveled
• show the water temperature
We are sure you will find the FishFinder L365 to be one of the most useful
devices on your boat.
Raymarine
PWR
PAGE
SETUP
CLEAR
L365
Optional Thru Hull
Transducer
FishFinder 365
Display Unit
Transducer mounted
Introduction
in quick release
transom bracket
Fig. 1-1
T ypical Installation
1
System Components
The FishFinder L365 consists of a compact display unit connected to a
transducer. The transducer is attached to the boat and extends into the
water.
Standard Equipment
When you unpack your FishFinder L365, you should find the following
standard equipment in the carton. If any items are missing, please notify
your Raymarine dealer immediately, or contact the Customer Service
Department at Raymarine at 1-800-539-5539, ext. 2333. Please provide
the serial number of the FishFinder when reporting any missing items.
Description Part No.
FishFinder L365 display unit E61010
Quick-release swivel-mount bracket
(with mounting hardware) M78945
DC power cable M99-146
Instruction manual G627296-3
Four #10 x 3/4” ss mounting screws —
Standard Transducers
Depending on which model of the L365 you have purchased, the box will
include one of the transducers listed below:
Description Part No.
Transom-mount transducer (with speed
and temperature sensors, including
mounting bracket and hardware) M78898
Bronze thru-hull transducer (with
speed and temperature sensors) M78923
Optional Accessories
Optional accessories and parts can be purchased directly from
Raymarine. For prices and ordering information, please call the Parts
Department at (800) 539-5539 ext. 2333.
2
Introduction
Description Part No.
Sidelooker transom-mount transducer M78930
Sidelooker transducer for trolling motor mounting.
Companion with M78928 downlooker depth/temp
transducer, with 12 ft. (3.6 m) cable
and hardware M78929
Extension for transducer cable (15 ft, 5 m) M99-140
Extension for transducer cable,
for Sidelooker transducer (15 ft, 5 m) M99-139
Flush-mounting kit (with hardware and
mounting template) M99-137
Fairing block for M78923 thru-hull
transducer (Lexan®) M99-142
Low profile plastic thru-hull transducer
(Valox® plastic, sensor for depth only) M78922
Bronze thru-hull transducer
(sensor for depth only) M78921
In-hull/trolling motor transducer (for installation in
fiberglass hull only, or mounting on trolling motor,
including hardware for either installation) M78928
Angled in-hull transducer (for installation
in fiberglass hull only, where deadrise
angle is 10° to 22°) M78946
Plastic thru-hull transducer (Valox® plastic, with
speed and temperature sensors, used with depthonly transducers M78922, M78928, M78946) M78937
Transom-mount speed and temperature
sensor (used with depth-only transducers
M78922, M78928, M78946) M78936
Replacement transom transducer
mounting bracket kit M99-148
Soft storage/carrying case M99-114
Transducer switch box (select between two L365
FishFinder displays, using one transducer) M99-136
Replacement paddle wheel kit (for transom-
mount transducer) M99-143
Replacement paddle wheel kit
(for thru-hull transducer) M99-144
Introduction
3
2 – Installation
The installation process has four parts:
• Mounting the transducer
• Mounting the display unit
• Connecting the cables for the transducer and power supply
• Calibrating the display unit
About the Transducer
Several different kinds of transducers can be used with this unit. The
transom-mount style, used most often, and in-hull types are shown in
Fig. 2-1.
Besides measuring water depth, the transducers also have two other
sensors: a paddle wheel which detects the speed of the boat, and a
sensor for the water temperature. The display unit uses the speed
information to calculate the distance the boat has traveled. An optional
transducer, the Sidelooker, detects objects by looking out to the sides of
the boat.
Since the transducer is very important to the operation of the FishFinder,
it is vital that the transducer be mounted correctly. The transducer will
give the most reliable readings if it looks into water which is smooth and
undisturbed. If you place the transducer so bubbles or turbulence flow
across the face of the unit, the system may give inaccurate readings.
There are three important rules when mounting any type of transducer:
• The transducer should be continuously covered by water when the
boat is moving. (If the transducer is mounted near the side of the
boat, it may be exposed when the boat is turning.)
• The transducer should be placed where turbulence or bubbles will not
pass directly over the face of the unit. Don’t place the transducer
behind any running strakes, intakes, or thru-hull fittings which create
turbulence.
• The transducer should be mounted where it will not be affected by the
wash from the propeller(s).
4
Installation
M78898
Transom-mount
transducer
M78923
Thru-hull
transducer
M99-142
Fairing for
thru-hull transducer
M78946
In-hull
transducer
M78930
Sidelooker
transducer for
transom mount
M78929
Sidelooker
transducer for
trolling motor
Fig. 2-1
Transducer
Types
Selecting the Cor rect Type of Transducer
Before you begin the installation, double-check to be sure you have the
correct type of transducer. Each kind of transducer is designed for a
particular type of use. In this manual we will include detailed mounting
instructions for the transom-mount transducer. We will also include some
general information on the other types. For detailed information on these
other transducers, see the instructions which are packaged with the unit.
Use a transom-mount transducer if –
. . . your boat has an outboard or inboard-outboard engine(s), and if you’re
planning to use the Sidelooker option. This type of transducer must be
mounted ahead of or beside the propeller(s). Do not use this type of
transducer for a boat with a straight-shaft inboard engine.
Use a thru-hull transducer if –
. . . your boat has a straight-shaft inboard engine. This type of transducer
is installed in a hole drilled through the hull.
Use an in-hull transducer if –
. . . you have a high-speed boat or if, for some reason, you cannot use a
transom-mount or thru-hull transducer. The hull may be no more than 1" thick.
Installation
5
Use a trolling motor transducer if –
. . . you want to attach the transducer to a trolling motor. (Not recommended for deep-water operations.)
Use a Sidelooker transducer if –
. . . you need a way of searching for fish on either side of the boat. This
type of transducer is attached to the bracket of the transom-mount
transducer or to the shaft of the trolling motor.
Assembling the Transducer Bracket
Fit together the two parts of the transducer bracket as shown in Fig. 2-2.
When the installation is complete, the parts snap together as shown.
Attach the
two parts
Lower the transducer
and snap in the
release clip
Bracket is installed
upside down
Fig. 2-2
Assembling
the T ransducer
Bracket
Positioning the Transom-Mount Transducer
Begin by finding the best location for the mounting bracket. Here are the
rules:
• If your boat has one propeller (outboard or inboard-outboard), mount
the transducer about 18↑ (455 mm) to the side of the centerline of the
boat. See Fig. 2-3. Choose the side that is on the downstroke of the
propeller. (This is usually the starboard side of the boat.) This will
reduce interference caused by air bubbles.
• If the propeller can be turned to steer the boat, allow at least 2" (50
mm) beyond the swing radius of the propeller. This will prevent the
NOT THIS!LIKE THIS!
6
Installation
Fig. 2-3
Transducer
Mounted on
Transom
Allow a clearance
of at least 10
inches (254 mm)
10"
(254 mm)
Transducer in
released position
Fig. 2-4
Transducer
Bracket,
Side View
propeller from damaging the transducer when it is turned. After
installation, check the clearance by turning the wheel so the propeller
swings toward the transducer. There should always be a 2” (50 mm)
clearance.
• If your boat has twin propellers (outboard or inboard-outboard), place
the transducer near the centerline of the boat.
•
Do not
mount the transducer behind any hull fittings, intakes, or other
parts which extend from the hull. These may cause turbulence or air
bubbles.
Installation
7
Average transom angle–
no wedge necessary
Vertical transom –
place wedge this way
Sloping transom–
place wedge this way
2 to 5
2 to 5 2 to 5
For fiberglass hull – 1/8" to 1/4" (3.2 to 6 mm)
For aluminum hull – 1/4" to 3/8" (6 to 9 mm)
No! No! No!
The bow of the transducer
is above the bottom of the
transom, creating
cavitation.
Insert screws 1 and 3
1/4" from the bottom of
slots, and screw 2
1/4" from the top of the
slot to allow room for
adjustment.
Rivets on the hull are
creating bubbles.
Lower the transducer
a bit.
123
Correct
alignment
The rear of the transducer
is too high, creating
cavitation.
Fig. 2-5
Correct Mounting
Position
If screws are inserted
this way, it won’t be
possible to make the
height adjustment.
8
Incorrect
alignment
Fig. 2-6
Mounting
the T ransducer
Installation
• The bracket has a quick-release mechanism. This may reduce
damage by allowing the transducer to flip up if it hits any debris or the
bottom. See Fig. 2-4. Allow enough clearance above the transducer
so that it can swing upward completely. This is about 10" (254 mm)
measured from the bottom of the transom.
• If considering the Sidelooker option, look for a mounting location
where the Sidelooker array will not be blocked by the engine housing
or other mounted hardware.
• If the boat will be carried on a trailer, be sure the transducer will not
hit any rollers, bunks or fittings on the trailer.
Mounting the Transom-Mount Transducer
1. On a boat with a fiberglass hull, the leading edge of the transducer
should extend 1/8" (3.2 mm) to 1/4" (6 mm) below the bottom edge of
the hull. See Fig. 2-5. On an aluminum hull, the transducer should
extend a bit more – 1/4" (6 mm) to 3/8" (9 mm). If the boat will be
operated at high speeds, the transducer may be mounted closer to
the centerline of the hull.
2. The lower surface of the transducer should tilt down toward the rear
at a slight angle (2° to 5°). The mounting bracket includes a wedge.
Depending on the angle of the transom on your boat, you may need
this wedge to get the correct angle for the bottom of the transducer.
3. Looking at the rear of the boat, be sure the bracket is vertical (perpendicular to the water line).
4. Hold the bracket (and the wedge, if used) against the transom and
trace the positions of the screw slots.
5. Remove the bracket. See Fig. 2-6. The screws in the outer slots
should be placed about 1/4" (6 mm) up from the bottom of each slot.
The screw in the center slot should be placed 1/4” (6 mm) down from
the top. (This will allow you to adjust the bracket up or down a bit.)
Drill pilot holes 3/4" (19.1 mm) deep. Use a 9/64" (3.6 mm) drill bit.
To prevent drilling too deeply, wrap masking tape around the drill bit
about 7/8" (22 mm) from the tip. Drill in only as far as the tape
marker.
If you are attaching the bracket to a fiberglass hull, you can minimize
any surface cracking of the gel coat. Before drilling each pilot hole,
drill a shallow hole (chamfer) at each location about 1/16" (1.5 mm)
deep. Use a 1/4" (6 mm) drill bit.
Installation
9
6. Attach the bracket to the hull using the panhead screws with flat
washers. Before you tighten the screws, apply a good-quality marine
sealant to the pilot holes. This will protect the hull from water penetration.
Do not tighten the screws completely yet.
7. Move the bracket up or down so that the leading edge of the transducer has the clearance shown in Fig. 2-5.
8. Once the bracket is in the correct position, you can tighten the
screws.
Mounting the Optional Sidelooker Transducer
1. The Sidelooker transducer allows the display unit to check the water
to either side of the boat. This is helpful when you are looking for fish
or structure near river banks, or under docks or piers.
Fig. 2-7
Installing the
Sidelooker
Transducer
2. The M78930 Sidelooker transducer is attached to the same mounting bracket used with the transom-mount transducer. See Fig. 2-7.
Begin by installing the transom-mount bracket as described earlier.
3. Remove the two screws and brackets covering the paddlewheel.
4. Attach the Sidelooker transducer to the top of the transom mounting
bracket. Use the four panhead screws supplied. The fit should be
snug, but do not overtighten the screws.
10
Installation
5. Run the Sidelooker cable beside the depth cable for the transommount transducer.
Installation Notes – Thru-Hull Transducer
Detailed instructions for this installation will be included with the transducer. In this section, we will note just a few important points.
1. Earlier we listed three general rules for placing transducers. All of
these rules apply when you are mounting a thru-hull transducer. Here
are some other rules for selecting the best mounting location:
For planing hulls – Install in the flat planing area near the stern.
Always install forward of the propeller(s) and shaft(s).
For small displacement hulls – Install near the centerline of the hull
and 1/3 of the way forward from the stern. Always install forward of
the propeller(s) and shaft(s).
For large displacement hulls – Install near the centerline of the hull
and 1/3 of the way aft from the bow. Always install forward of the
propeller(s) and shaft(s).
For sailboats – Install forward of the leading edge of the keel, to one
side and near the centerline of the hull.
2. Choose a location where you can easily reach the transducer from
inside the boat. This will allow you to service the unit. Allow at least
6" (152 mm) of headroom above the transducer.
3. When choosing a mounting location, drill a small pilot hole (1/8" or 3.2
mm) from the inside of the hull. Before you drill the hole, be sure you
will be able to reach the large nut on the top of the unit, and that there
will be enough clearance for the cable. If there is a strake or other
feature on the hull, drill from the outside of the hull instead. (This
small hole can be filled easily if the mounting location is not suitable.)
4. The position of the transducer is especially critical on high speed
boats (capable of more than 20 knots). Check the locations of the
transducers on similar boats before installing the transducer in your
own boat. Choose the location which will offer the best performance.
5. If the bottom of the hull at the mounting location is flat, you can mount
the transducer directly through the hull. If the hull rises at an angle
(the “deadrise angle”) of more than 10°, you must include a mounting
block or “fairing.” The transducer must be mounted in a vertical
position. Attach the fairing block to the hull as firmly as possible. This
Installation
11
fairing block must be able to resist the drag of the water against the
hull, and must also be completely waterproof.
6. If the hull of the boat has a core-type hull, you will need to follow
some special mounting procedures. The core material must be
protected from any water which may leak from the inside of the boat.
(If the core material is allowed to remain wet, it may rot and weaken
the hull.)
7. When working with the transducer, support it by holding the body of
the unit or the rings. Do not hang the transducer from the cable.
8. It is very important to seal the opening around the transducer using a
high-quality marine sealant suitable for underwater use. After
installation, do not leave your boat in the water for any amount of time
without checking for leaks.
Installation Notes – In-Hull Transducer
Detailed instructions for this installation will be included with the transducer. In this section, we will note just a few important points.
1. Choose the best mounting location:
For outboard powerboats – Install as far aft as possible
For inboard/outboard powerboats – Install close to the engine(s)
For inboard powerboats – Install forward of the propeller(s) and
shaft(s)
For sailboats – Install near the centerline of the hull and forward of
the leading edge of the keel
2. An in-hull transducer may only be installed in a fiberglass hull which is
no more than 1" (25 mm) thick. The in-hull transducer may not be
installed in wood or aluminum hulls.
3. Use the standard in-hull transducer if it will be installed in a flat part of
the hull, or a section with no more than 10° of deadrise. Use the
angled in-hull transducer if the mounting location has up to a 22° of
deadrise.
4. Do not try to compensate for the angle of the hull by fairing the epoxy
adhesive on the face of the transducer.
5. Use the epoxy supplied with the in-hull transducer, or an equivalent
epoxy glue. Do not use any other type of adhesive, including silicone
or RTV adhesive.
12
Installation
Installation Notes – Trolling Motor Transducer
Both Downlooker and Sidelooker transducers may be installed on a
trolling motor. See Fig. 2-8.
Fig. 2-8
Installing the
Sidelooker
T ransducer on a
T rolling Motor
Detailed instructions for these installations will be included with the
transducer(s). The Downlooker transducer is mounted on the horizontal
gear case of the motor. The Sidelooker transducer is attached to the
vertical support tube. These installations are simple, but it is important to
keep these points in mind:
1. Keep the Sidelooker transducer fully submerged. The transducer will
only produce an image if it is immersed in water.
2. Keep the Sidelooker transducer clear of weeds or debris.
3. When the position of the trolling motor is changed, the field of view of
the Sidelooker also changes. The Sidelooker can be aimed at
interesting echoes, but can also be positioned so that it is looking
back at the hull. Be aware of the position of the Sidelooker transducer.
Installation
13
Installation Notes – Tr ansducer for Speed and
Temperature Only
This type of transducer may be used with a thru-hull transducer which
reads depth only. The speed/temperature transducer is attached to the
transom of the boat. Detailed instructions for this installation will be
included with the transducer. The cable for this transducer uses a “Y”
connector. See the notes on “Installing the Transducer Cable.”
Mounting the Display Unit – Standard Mount
You may mount the display unit on any flat surface using the bracket
supplied. See Fig. 2-9. (There is also an optional kit which allows you to
flush-mount the display in a flat panel or dashboard). Follow these
instructions if you are using the standard mounting bracket:
1. The “LCD” type display used on this unit is easier to see from certain
angles. Before selecting a permanent mounting location, make
temporary power connections and turn on the unit. This will allow you
to test the visibility of the display from several different angles.
2. Remove the display unit from the bracket by pressing on the large
button in the center of the bracket. See Fig. 2-9.
3. Mount the base of the bracket using the supplied screws.
To release the
display from
the base,
press on the
right and left
sides until you
hear the clicks.
Slide the
display out
of the bracket.
The display can
be turned from
side to side.
14
Raymarine
PW
R
P
A
G
E
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TU
P
CLEAR
F
IS
H
F
IN
D
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L365
The angle of
the display
can be changed.
Fig. 2-9
Installation
on Bracket
Installation
1-3/4"
(44 mm)
2-23/32"
(69 mm)
4-9/32"
(109 mm)
Countersink
3/8" (10 mm)
Hole 3/16" (5 mm)
1-13/32"
(36 mm)
63/64"
(25 mm)
2-25/32"
(70 mm)
2-21/32"
(67 mm)
5-7/32" (133 mm)
6-3/4"
(172 mm)
5-9/32"
(134 mm)
Installation
3-29/32"(99 mm)
4-7/32"(107 mm)
Fig. 2-10
Dimensions
15
4. Slide the display unit back into the bracket.
5. Adjust the display unit for the best viewing angle. You can turn the
display from side to side, and tilt it up or down.
Dismounting the Display Unit
See Fig. 2-9. To release the display from the bracket, press and hold
down the left and right sides. You will hear an audible “click,” and the
bracket will slide out.
Mounting the Display Unit – Flush Mount
In order to do this installation, you will need the optional flush mounting kit
(part no. M99-137). See Fig. 2-11.
1. Select a mounting location on the dashboard or control panel.
Choose a clear, flat area at least 6" x 6" (152 mm x 152 mm). Be sure
you will also have at least 6" (152 mm) of clearance behind the area
where the display unit will be mounted. It is a good idea to drill a
small pilot hole in the center of the mounting area. Be sure there are
no hidden electrical wires or other items behind the point where you
plan to mount the display unit.
2. A mounting template is supplied with the flush mounting kit. Tape this
over the selected location on the panel and trace around the edges.
3. Make the cutout for the display. Drill a series of 1/2" (13 mm) holes at
the points shown around the edges of the cutout area.
Gasket
16
Mounting hole
cut according to
template
Screw holes
Fasten with
threaded studs
and wing nuts
Fig. 2-11
Flush-mount
Installation
Installation
4. Drill the two small holes for the threaded studs as shown on the
mounting template. Use a 7/32" (5.5 mm) drill bit.
5. Remove the template and draw straight lines between the 1/2" holes.
Cut along each of the lines with a small saw.
Raymarine
FISHFINDER
PWR
PAGE
SETUP
CLEAR
L365
To pry up the cap
insert a small screwdriver here
Fig. 2-12
Disassembling
from Bracket
6. Separate the display unit from the mounting bracket. (See Fig. 2-12.)
Press the large button in the center of the bracket to separate the
bracket arms. The display unit is attached to the arms by two screws.
Each screw is covered by a cap. Locate the small slot beside each
cap and pry upward using a small screwdriver. Remove the caps,
then the two screws and the two wave washers. Save these parts in
case you ever want to use the mounting bracket.
7. Screw the threaded studs into the holes on the rear of the display unit.
8. Set the display unit into place to be sure that it will fit correctly.
Thread the wing-nuts onto the threaded studs to hold the display unit
in place temporarily.
9. Once the DC wiring is complete, finish the installation. Hold the
gasket in place around the opening. Fit the display into the cutout
again. From the rear, screw the thumbscrews securely onto the
threaded studs to hold the unit in place.
Installation
17
Installing the Transducer Cable
A 20 foot length of cable, with the connector attached, is supplied with the
transducer.
remove the connector. Do not try to shorten or splice the cable. The
transducer cable includes several wires, along with shielding and
insulation. If the cable is cut, it cannot be repaired.
will also void the warranty.) During installation, if you need to drill any
holes for the cable, they must be large enough to accept the connector.
This will allow you to make the installation without cutting the wire.
1. Route the cable up and over the top edge of the transom. See
Fig. 2-13. Secure the cable using cable clamps. (These clamps
are available from your local mar ine equipment supplier.)
If you do not want to expose the cable on the deck, you may drill a
new hole (3/4" or 19 mm) through the transom for the cable. (Remember – this hole must be large enough to accept the cable with the
connector attached. Do not cut the cable!) To seal the opening, use
a feed-thru cap where the cable passes through the transom.
2. Run the cable through the interior of the boat. If the transducer cable
runs near another electrical wire, it may pick up electrical interference
or “noise.” To reduce this, try to keep the transducer cable separated
as far as possible from all other wires. This is especially important
with wiring for the boat’s ignition, alternator, or tachometer. Also try to
During the installation, do not cut the transducer cable or
(Cutting the cable
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Cable feed-thru
cap
Cable clamp
1" (25 mm)
Hull projections
Fiberglass: 1/4" (6mm)
Aluminum: 1/2" (13 mm)
Fig. 2-13
Installing Cable
on T ransom
Installation
keep the transducer cable away from the antenna and power cables
for VHF or FM radios. It is also helpful to keep the transducer cable
away from the FishFinder power cable. If it is necessary to run the
transducer cable across any wires, make the crossing at a right angle.
3. Be careful not to tear the cable jacket when passing it through bulkheads and other parts of your boat. Secure the cables in place using
tywraps or lacing twine. Coil the extra cable and tie it out of the way.
4. If the 20 foot transducer cable is not long enough, a 15 foot extension
cable (4.6 m) is available from your Raymarine dealer (part no. M99-
139). When you attach the extension cable, be sure that the connections are tight and watertight. Use Dow Corning DC-4 or an equivalent sealing compound to protect the connector assemblies.
5. At the rear of the display unit, plug in the transducer cable using the
keyed connector.
Installing the Transducer Cable – Sidelooker Option
1. If the installation includes the optional Sidelooker transducer, there
will be two transducer cables. See Fig. 2-14. The cable from the
Sidelooker includes a “Y” connector.
2. Plug the cable from the depth transducer into the open end of the “Y”
connector.
Sidelooker
transducer
Installation
Depth
transducer
Fig. 2-14
Cable for
Sidelooker
Transducer
19
Installing the T ransducer Cable –
Installation with Separate Speed and T emperature Sensors
1. Optional depth-only and speed- and temperature-only transducers are
available for the FishFinder L365. In this optional configuration the
separate transducers are connected via a “Y” type receptacle cable
located on the optional speed- and temperature-only transducer cable.
2. Plug the cable from the depth-only transducer into the receptacle
connector on the optional speed- and temperature-only transducer.
The speed- and temperature-only transducer then connects at the
transducer receptacle of the FishFinder L365. This is shown below in
Fig. 2-15.
Sensor for
speed and
temperature
Sensor for
depth only
Fig. 2-15
Cable for Speed
and T emperature
Sensor
Making the DC Power Connections
1. The display unit is designed for use on boats with 12V DC power
systems. (The unit can operate as long as the DC voltage is between
11.0 and 16V DC.) The display unit can be wired to a negative-ground
system, or both the negative and positive supply lines may be “floating”
above ground.
positive ground.
20
This unit is not intended for use on boats with
Installation
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