Humminbird HDR 610 User manual

Hummin ird® HDR 610
Installation and
Operations Manual
531440-2_C

ii
THANK YOU!
Thank you for choosing umminbird®, America's #1 name in fishfinders. umminbird®
has built its reputation by designing and manufacturing top-quality, thoroughly reliable
marine equipment.
Your umminbird® is designed for trouble-free use in even the harshest marine
environment. In the unlikely event that your umminbird® does require repairs, we offer
an exclusive Service Policy - free of charge during the first year after purchase, and
available at a reasonable rate after the one-year period. For complete details, see the
Warranty section included in this manual.
Contact our Customer Resource Center at either 1-800-633-1468 or visit our web site
at www.humminbird.com.
ENVIRONMENTAL COMPLIANCE STATEMENT: It is the intention of Humminbird® to
be a responsible corporate citizen, operating in compliance with known and applicable
environmental regulations, and a good neighbor in the communities where we make or sell
our products.
WEEE DIRECTIVE: EU Directive 2002/96/EC “Waste of Electrical and Electronic
Equipment Directive (WEEE)” impacts most distributors, sellers, and manufacturers of
consumer electronics in the European Union. The WEEE Directive requires the producer of
consumer electronics to take responsibility for the management of waste from their
products to achieve environmentally responsible disposal during the product life cycle.
WEEE compliance may not be required in your location for electrical & electronic
equipment (EEE), nor may it be required for EEE designed and intended as fixed or
temporary installation in transportation vehicles such as automobiles, aircraft, and boats.
In some European Union member states, these vehicles are considered outside of the
scope of the Directive, and EEE for those applications can be considered excluded from the
WEEE Directive requirement.
This symbol (WEEE wheelie bin) on product indicates the product must not be
disposed of with other household refuse. It must be disposed of and collected for
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treatment, recovery, and environmentally sound disposal of those products; however, these
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where you should dispose of your waste equipment for recycling and recovery and/or your
European Union member state requirements, please contact your dealer or distributor from
which your product was purchased.
© 2008 umminbird®, Eufaula AL, USA. All rights reserved.

iii
TABLE OF CONTENTS
How Sonar Works 1
Installation Overview 2
In talling the HDR 610 ............................................................................................................ 3
1. Locating the RD 610 Mounting Position.......................................................................... 4
2. Cutting the Mounting ole.................................................................................................. 4
3. Customizing and Assembling the DR 610........................................................................ 4
4. Installing the DR 610 ........................................................................................................ 6
5. Installing the Buzzer ............................................................................................................ 6
6. Connecting the Transducer Cable ...................................................................................... 7
7. Connecting to the Power Supply ........................................................................................ 7
Transducer Installation 8
Tran om Tran ducer In tallation.............................................................................................. 8
1. Locating the Transducer Mounting Position .................................................................... 8
2. Preparing the Mounting Location .................................................................................... 10
3. Assembling the Transducer and Initial Mounting............................................................ 11
4. Routing the Cable .............................................................................................................. 14
5. Connecting the Cable ........................................................................................................ 16
6. Test and Finish the Installation ........................................................................................ 16
7. Locking Down the Transducer (Optional).......................................................................... 19
In ide the Hull Tran ducer In tallation ................................................................................ 20
1. Locating the Transducer Mounting Position .................................................................... 20
2. Trial Installation .................................................................................................................. 20
3. Routing the Cable .............................................................................................................. 22
4. Permanently Mounting the Transducer............................................................................ 22
Trolling Motor Tran ducer In tallation...................................................................................... 23
Trolling Motor Transducer Options........................................................................................ 23
In ide the Hull Mounting, Puck Tran ducer only................................................................ 24
1. Locating the Transducer Mounting Position .................................................................... 24
2. Trial Installation .................................................................................................................. 24
3. Routing the Cable .............................................................................................................. 26
4. Permanently Mounting the Transducer............................................................................ 26

iv
Operating the HDR 610 27
What's on the Display ................................................................................................................ 27
Key Functions .............................................................................................................................. 27
Shallow Alarm ............................................................................................................................ 28
Deep Alarm.................................................................................................................................. 29
Units ............................................................................................................................................ 30
Keel Offset .................................................................................................................................. 30
Maintenance 33
DR 610 Maintenance .............................................................................................................. 33
Transducer Maintenance............................................................................................................ 33
Troubleshooting 33
DR 610 Doesn't Power Up........................................................................................................ 34
No Bottom Reading on the Display .......................................................................................... 34
No Continuous Depth Display in Very Shallow Water.............................................................. 34
Screen Fades, Images are Not Sharp ........................................................................................ 34
Bottom Reading Disappears During a ard Turn...................................................................... 34
1-Year Limited Warranty 35
Humminbird® Service Policy 36
Returning Your Unit for Service.................................................................................................. 37
Specifications 38
Contact Humminbird® 40

1
HOW SONAR WORKS
Sonar technology is based on sound waves. The DR 610 Digital Depth Gauge uses
sonar to determine depth directly below the transducer. Your DR 610 Digital Depth
Gauge consists of two components: the DR 610 sonar unit and the transducer. The
sonar unit contains the transmitter and receiver, as well as the user controls and display.
The transducer is mounted beneath the water surface and converts electrical energy
from the transmitter into mechanical pulses or sound waves. The transducer also
receives the reflected sound waves and converts them back into electrical signals for
display on the sonar unit.
Sonar is very fast. A sound wave can travel from the surface to a depth of 240 ft (70 m)
and back again in less than 1/4 of a second. It is unlikely that your boat can "outrun"
this sonar signal.

2
INSTALLATION OVERVIEW
Before you start installation, we encourage you to read these instructions carefully in
order to get the full benefit from your DR 610 Digital Depth Gauge. You will install your
DR 610 depthsounder first, then your transducer. When you are done with both of
these installation tasks, you should perform a final installation test before operating
your DR 610.
Please make sure that the following parts are included for your depthsounder:
• DR 610 depthsounder
• "U" bracket and mounting hardware
• 2 cable ties.
Also, please make sure the following parts are included for your transducer:
• Transom mount or Puck transducer with 20' of cable
• Transducer mounting hardware kit.
In addition to the hardware supplied, you will need the following for installation and
operation:
• Powered hand drill and various drill bits, including a 2 1/8" hole saw, if your boat
does not have an existing gauge hole
• Phillips-head and flat-head screwdrivers
• Ruler or measuring tape
• Pen or pencil
• 12 Volt power source (your boat's battery)
• Marine-grade silicone sealant (for sealing drilled holes)
• Two-part, slow-cure epoxy (for inside-the-hull transducer installation only).
NOTE: If you are wiring directly to the boat's battery, you will also need a 1 Amp fuse and
a fuse holder.

3
INSTALLING THE HDR 610
Before installing the DR 610, make sure you have the following parts:
• DR 610 depthsounder
• "U" bracket and mounting hardware
• 2 cable ties.
Perform the following high-level steps by following the instructions in each numbered
section to install the DR 610 depthsounder:
1. Locating the RD 610 mounting position
2. Cutting the mounting hole
3. Customizing and assembling the DR 610
4. Installing the DR 610
5. Installing the buzzer
6. Connecting the transducer cable
7. Connecting to the power supply.

4
1. Locating the HDR 610 Mounting Position
You must select an appropriate mounting location for the DR 610. Consider different
positions on the console or deck of the boat. Remember that the cables for the
transducer and power must reach the mounting location. Extension cables are available.
The mounting surface should be visible to the boat operator and adequately supported
to protect the DR 610 from excessive wave shock and vibration. Allow at least 2"
clearance at the back, sides, and top of the unit for connection, air flow, and ease of
installation and removal.
2. Cutting the Mounting Hole
Once you have selected your mounting location, perform the following steps:
1. Mark the desired mounting location, then drill a pilot hole.
2. Drill a 2 1/8" diameter hole using a hole saw and hand drill. This is a standard hole
saw readily available for rental or purchase. If you prefer, any marine service shop
can perform this task.
3. Customizing and Assembling the HDR 610
Your DR 610 comes with both black and white bezels, and both black and white
overlays. You must select one color for the bezel, and another color for the overlay, and
perform the following assembly steps:
1. Peel off the protective backing from the overlay, being careful not to let the
adhesive touch anything prematurely.

5
WARNING: In order to provide a lasting, waterproof bond, the overlay adhesive is
extremely sticky, and therefore you will OT be able to re-position it once you have stuck
it onto the face of the HDR 610.
2. Carefully line up the notch on the bottom of the overlay with the tab at the bottom
of the face of the DR 610, then press the overlay into place so that all buttons
and the display show through.
3. The bezel is keyed to fit only one way onto the front of the DR 610. There are
two opposing sets of tabs on the inside of the bezel: two wide tabs, and two tabs
with slots in them. Find the tab that has the asymmetrical slots (refer to the
illustration) and push the bezel onto the front of the DR 610 according to the
illustration.
Asymmetrical tabs
on bezel
HDR 610
Overlay
Bezel

6
4. Installing the HDR 610
Once you have your mounting hole cut, perform the following steps:
1. Insert the DR 610 from the front of the panel.
2. Install the "U" bracket and wingnut from the rear of the panel, and make sure that
the face of the DR 610 is oriented correctly, so that the top of the unit is at the
top of the hole.
NOTE: If the panel into which you are mounting the unit is greater than 1/4" thick, the "U"
bracket may appear too long. You may modify the "U" bracket by using pliers to break the
legs of the bracket at the score lines. Shorten the bracket in gradual stages to avoid
making it too short.
3. Tighten the wingnut to secure the installation.
5. Installing the Buzzer
Once the unit is mounted in the dash, secure the buzzer either to the metal bracket or
to a nearby wire bundle using the cable ties included.
Dash
Preferred
Mounting Area
Transducer Connector
Black Negative
Red 12V DC
Buzzer
BreakAway
Legs

7
6. Connecting the Transducer Cable
Connect the transducer cable to the transducer connector on the DR 610.
NOTE: The connector is keyed to prevent reverse installation, so be careful not to force the
plug into the connector the wrong way.
7. Connecting to the Power Supply
Use the following information to connect your DR 610 to an appropriate power supply:
• If your boat has an electrical system, there is probably a fuse panel in the console
area that can be used to attach the DR 610 power cable.
• If a fuse terminal is available, use crimp-on type electrical connectors (not included)
that match the terminal on the fuse panel, and attach the black wire to ground, and
the red wire to 12 VDC power. You must use a 1-Amp fuse in the connection.
• 36" of power cable is included; you may shorten or lengthen this cable using
18-gauge, multi-strand copper wire.
CAUTION: Some boats have 24 or 36 Volt electrical systems. Make sure that your HDR 610 is
connected to a 12 VDC power supply. Use a voltage conditioner for variable inputs.
NOTE: Humminbird® is not responsible for over-voltage or over-current failures. The control head must have
adequate protection through the proper selection and installation of a 1 amp fuse.
1a. If a fuse terminal is available, use crimp-on type electrical connectors (not included) that match the
terminal on the fuse panel. Attach the black wire to ground (-), and the red wire to positive (+)
12 VDC power. Install a 1 amp fuse (not included) for protection of the unit. umminbird® is not
responsible for over-voltage of over-current failures.
or...
1b. If you need to wire the DR 610 directly to a battery, obtain and install an inline fuse holder and
a 1 amp fuse (not included) for the protection of the unit. umminbird® is not responsible for
overvoltage or overcurrent failures.
GROUNDGROUND
POSITIVEPOSITIVE
Inline Fuse
Holder

8
TRANSDUCER INSTALLATION
If you have a transom mount transducer you can mount it on the transom (preferred), in
the hull, or you can purchase the trolling motor adapter and mount it on your trolling
motor. If you have a puck transducer then you can ONLY mount it in the hull; there is a
separate inside the hull mounting section for puck transducers. Find the correct section
for your transducer installation type.
The included transducer is designed for transom mounting on the boat (directly exposed
to the water). On fiberglass hull boats, this same transducer can be bonded to the inside
of the hull. When mounted inside the hull, the sonar signal actually passes through the
hull of the boat. One of these two mounting techniques will produce acceptable results
on most boats. There are, however, several situations that may demand a different type
of transducer. Inboard boats, wood or metal hulls, and sailboats often have unique
transducer mounting requirements.
TRANSOM TRANSDUCER INSTALLATION
1. Locating the Transducer Mounting Position
NOTE: If transom mounting is not possible because of a
stepped hull or cavitation noise, and you have a single layer
fiberglass hull, In-hull installation is an option. See Inside the
Hull Transducer Installation for more information.
Turbulence: You must first determine the best location on
the transom to install the transducer. It is very important to
locate the transducer in an area that is relatively free of
turbulent water. Consider the following to find the best
location with the least amount of turbulence:
• As the boat moves through the water, turbulence is
generated by the weight of the boat and the thrust of
the propeller(s) - either clockwise or counter-clockwise.
This turbulent water is normally confined to areas
immediately aft of ribs, strakes or rows of rivets on the
bottom of the boat, and in the immediate area of the
propeller(s). Clockwise propellers create more
turbulence on the port side. On outboard or
inboard/outboard boats, it is best to locate the
transducer at least 15" to the side of the propeller(s)
(See the illustration Turbulence-Free Location).
Areas of Possible Turbulence
Rivets Strakes
Transom Hull
Stepped Hull
Rib
Step

9
• The best way to locate turbulence-free water is to view the transom while the boat
is moving. This method is recommended if maximum high-speed operation is a
high priority. If this is not possible, select a location on the transom where the hull
forward of this location is smooth, flat and free of protrusions or ribs (See the
illustration Areas of Possible Turbulence).
• On boats with stepped hulls, it may be possible to mount the transducer on
the step. Do not mount the transducer on the transom behind a step to avoid
popping the transducer out of the water at higher speeds; the transducer
must remain in the water for the control head to maintain the sonar signal
(See the illustration Stepped Hull).
• If the transom is behind the propeller(s), it may be impossible to find an area clear
from turbulence, and a different mounting technique or transducer type should be
considered, such as an Inside the ull Transducer.
• If you plan to trailer your boat, do not mount the transducer too close to trailer
bunks or rollers to avoid moving or damaging the transducer during loading and
unloading of the boat.
• If high speed operation is critical, you may want to consider using an In- ull
transducer instead of this Transom Mount transducer.
NOTE: The hydrodynamic shape of your transducer allows it to
point straight down without deadrise adjustment.
NOTE: If you cannot find a transom mount location that
will work for your high-speed application, find an In-Hull
Transducer by contacting our Customer Resource Center
at either 1-800-633-1468 or by visiting our web site at
www.humminbird.com.
15”
Find a turbulence-free location at least 15” from the propeller(s)
and not in line with trailer bunks or rollers.
Level
Turbulence-Free Location
Deadrise Angle

10
2. Preparing the Mounting Location
In this procedure, you will determine the mounting location
and drill two mounting holes, using the transducer
mounting bracket as a guide.
1. Make sure that the boat is level on the trailer, both
from port to starboard and from bow to stern, by
placing your level on the deck of the boat, first in one
direction, then in the other.
2. old the mounting bracket against the transom of
the boat in the location you have selected. Align the
bracket horizontally, using the level; make sure that
the lower corner of the bracket does not protrude
past the bottom of the hull, and there is at least 1/4"
clearance between the bottom of the bracket and
the bottom of the transom for fiberglass boats,
and 1/8" clearance for aluminum boats (see the
illustration Boat Hull Types Require Different
Mounting Positions).
NOTE: If you have a flat-bottomed aluminum boat, some
additional adjustment may be needed to accommodate the
rivets on the bottom of the boat (i.e. the gap may need to be a
little smaller than 1/8"). This will help you to avoid excessive
turbulence at high speeds.
NOTE: If your propeller moves clockwise (in forward, as you're
facing the stern of the boat from behind), mount the transducer
on the starboard side, and align the bottom right corner of the
mounting bracket with the bottom of the boat. If your propeller
moves counter-clockwise (in forward, as you're facing the stern
of the boat from behind), mount the transducer on the port
side, and align the bottom left corner of the mounting bracket
with the bottom of the boat.
3. Continue to hold the bracket on the transom of the
boat, and use a pencil or marker to mark where to drill
the two mounting holes. Mark the drill holes near the
top of each slot, making sure that your mark is
centered in the slot (see the illustration Using t e
Mounting Bracket to Mark t e Initial Drill Holes).
Boat Hull Types Require
Different Mounting Positions
1/4” for fiberglass
1/8” for aluminum
Using the Mounting Bracket
to Mark the Initial Drill Holes
Mark Initial
Drill Holes
4th hole
3rd hole
Positioning the
Mounting Bracket
Level
Level

4. Make sure that the drill bit is perpendicular to the actual surface of the transom,
NOT parallel to the ground, before you drill. Using a 5/32” bit, drill the two holes
only to a depth of approximately 1”.
NOTE: On fiberglass hulls, it is best to use progressively larger drill bits to reduce the
chance of chipping or flaking the outer coating.
3. Assembling the Transducer and Initial Mounting
In this procedure, you will assemble the transducer using the hardware provided, then
mount it and make adjustments to its position without locking it in place.
NOTE: You will initially assemble the transducer and the pivot arm by matching the two
ratchets to a numbered position on the transducer knuckle. Further adjustments may be
necessary.
1a. If you already know your transom angle, refer to the chart below for the initial
position to use to set the ratchets. If your transom is angled at 14 degrees (a
common transom angle for many boats) use position 1 for the ratchets. In either
case, go to step 2.
or...
1b. If you do not know your transom angle, measure it
using a plumb line (weighted nylon string or
monofilament line) exactly 12 inches long. old
the top of the plumb line against the top of the
transom with your finger, and wait until the line
hangs straight down. Using a ruler, measure the
distance from the bottom of the plumb line to the
back of the transom, then use the chart.
NOTE: It is important to take your measurement in the
location shown in the illustration Measuring the Transom
Angle, from exactly 12 inches down from the top of the
transom.
NOTE: The third hole should not be drilled until the angle and height of the transducer is
finalized, which you will not do until a later procedure.
-2 -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Transom Angle (°)
Bead Alignment
Number 142531425
25 26 27
3
28 29 30
1
Measured Distance (x)
1.1cm
1/2“
0.0 cm
0“
2.5 cm
1“
4.3 cm
1 5/8“
5.9 cm
2 3/8“
7.6 cm
3“
9.3cm
3 5/8“
11.1cm
4 3/8“
12.9cm
5“
14.9cm
5 7/8“
16.9cm
6 5/8“
12”
Transom
Angle in
degrees
(°)
Measured
Distance (X)
Measuring the Transom Angle
Plumb
line
Weight
11

12
2. Place the two ratchets, one on either side of the transducer knuckle, so that
the beads on each ratchet line up with the desired position number on the
knuckle (see the illustration Transducer Knuckle Positions). If you are setting
the ratchets at position 1, the beads on each ratchet will line up with the rib
on the transducer knuckle to form one continuous line on the assembly (see
the illustration Ratc ets Placed in Position 1).
NOTE: The ratchets are keyed; make sure that the square teeth on each ratchet face the
square teeth on the transducer knuckle, and the triangular teeth face outward.
old the ratchets on the transducer knuckle with one hand and fit the pivot arm
over them until it snaps into place with the other hand. Refer to the illustration
Fitting t e Mounting Bracket Over t e Ratc et.
3. Put the pivot bolt through the assembly to hold it in
position and loosely install the nut, but do NOT
tighten the nut at this time (see the illustration
Inserting t e Pivot Bolt). Insert the pivot arm
assembly into the mounting bracket (see the
illustration Inserting t e Pivot Arm Assembly Into
t e Mounting Bracket). Do NOT snap the assembly
closed, as you will need to access the mounting
bracket in the next step.
Transducer Knuckle Positions Ratchets Placed in Position 1
Ratchets Placed in Position 2
Rib
Fitting the Mounting Bracket
over the Ratchet
Knuckle
Rib at
position 1
Beads
Ratchet
Bead
Ratchet
Inserting the Pivot Bolt

13
NOTE: If the pivot assembly is snapped closed over the mounting bracket, use a flat head
screwdriver or similar tool to gently pry the a ssembly away from the mounting bracket (see
the illustration Prying the Assembly Away from the Mounting Bracket).
4. Align the mounting bracket transducer assembly with
the drilled holes in the transom. With a 5/16" socket
driver, mount the assembly to the transom using the
two #10 - 1" long screws provided (see the illustration
Mounting t e Assembly to t e Transom).
NOTE: Make sure that the mounting screws are snug, but do
not fully tighten the mounting screws at this time to allow the
transducer assembly to slide for adjustment purposes.
5. Snap the pivot arm down into place.
6. Adjust the initial angle of the transducer from back to front by rotating the
transducer until the side seam on the transducer is almost parallel with the bottom
of the boat, one click at a time in either direction (see the illustration Adjusting t e
Initial Transducer Angle).
Adjusting the Initial Transducer Angle
One click too low
Trailing edge
Correctly aligned
(transducer side seam
aligned with boat bottom)
One click too high
Leading edge
Inserting the Pivot Arm Assembly Into
the Mounting Bracket
Prying the Assembly
Away from the
Mounting Bracket
Mounting the Assembly
to the Transom

14
7. Adjust the transducer assembly vertically, until the seam on the leading edge of the
transducer (the edge closest to the transom of the boat) is level and just slightly
below the hull (see the illustration Adjusting t e Transducer Mounting Position).
NOTE: The transducer has a natural downward slant of 4-5 degrees from leading edge
(closest to the boat transom) to trailing edge (farthest away from the boat). Looking at the
back of the transducer, the seam should be slightly below the bottom of the hull.
8. Continue to adjust until the bracket is also level from port to starboard
(horizontally level as you look at the transducer from behind the boat (see the
illustration Leveling t e Mounting Assembly Horizontally).
9. Mark the correct position on the transom by tracing the silhouette of the
transducer mounting bracket with a pencil or marker.
10. Tighten the pivot bolt, using the pivot screw and nut to lock the assembly. Hand
tighten only!
11. Snap open the assembly and hand-tighten the two mounting screws, then snap
the assembly closed.
NOTE: You will drill the third mounting hole and finalize the installation after you route the
cable and test and finish the installation in the following procedures.
4. Routing the Cable
The transducer cable has a low profile connector, which must be routed to the point
where the control head is mounted. There are several ways to route the transducer
cable to the area where the control head is installed. The most common procedure
routes the cable through the transom into the boat.
NOTE: Your boat may have a pre-existing wiring channel or conduit that you can use for
the transducer cable.
Adjusting the Transducer
Mounting Position
Seam aligned
with boat hull
Leveling the Mounting
Assembly Horizontally
Level
Level

15
1. Unplug the other end of the transducer cable from the control head. Make sure
that the cable is long enough to accommodate the planned route by running the
cable over the transom.
CAUTION! Do not cut or shorten the transducer cable, and try not to damage the cable
insulation. Route the cable as far as possible from any VHF radio antenna cables or
tachometer cables to reduce the possibility of interference. If the cable is too short,
extension cables are available to extend the transducer cable up to a total of 50'. For
assistance, contact the Customer Resource Center at www.humminbird.com or call
1-800-633-1468 for more information.
NOTE: The transducer can pivot up to 90 degrees in the bracket. Allow enough slack in the
cable for this movement. It is best to route the cable to the side of the transducer so the
transducer will not damage the cable during movement.
2a. If you are routing the cable over the transom of the
boat, secure the cable by attaching the cable clamp to
the transom, drilling 9/64" diameter holes for
#8 x 5/8" wood screws, then skip directly to procedure
5, Connecting t e Cable.
or...
2b. If you will be routing the cable through a hole in the
transom, drill a 5/8" diameter hole above the
waterline. Route the cable through this hole, then
fill the hole with marine-grade silicone sealant and
proceed to the next step immediately (see the
illustration Routing t e Cable).
3. Place the escutcheon plate over the cable hole and
use it as a guide to mark the two escutcheon plate
mounting holes. Remove the plate, drill two 9/64"
diameter x 5/8" deep holes, and then fill both holes
with marine-grade silicone sealant. Place the
escutcheon plate over the cable hole and attach with
two #8 x 5/8" wood screws.
4. Route and secure the cable by attaching the cable
clamp to the transom; drill one 9/64" diameter x 5/8"
deep hole, then fill hole with marine-grade silicone
sealant, then attach the cable clamp using a
#8 x 5/8" screw.
Storing Excess Cable
Routing the Cable

16
NOTE: If there is excess cable that needs to be gathered at one location (as shown in the
illustration), dress the cable routed from both directions so that a single loop is left extending from
the storage location. Doubling the cable up from this point, form the cable into a coil. Storing
excess cable using this method can reduce electronic interference (see the illustration Storing
Excess Cable).
5. Connecting the Cable
Insert the transducer cable into the appropriate terminal slot. The cable connectors are
labeled, and there are corresponding labels on the cable holder on the rear of the
control head. The slots are keyed to prevent reversed installation, so be careful not to
force the connector into the holder. Refer to your manual and/or control head
installation guide for the correct procedure for installing the cable connectors to the
control head.
1. Plug the other end of the transducer cable back into the control head connection
holder.
Your control head is now ready for operation.
6. Test and Finish the Installation
Once you have installed both the control head and the transom transducer, and have
routed all the cables, you must perform a final test before locking the transducer in
place. Testing should be performed with the boat in the water, although you can initially
confirm basic operation with the boat out of the water.
1. Press POWER once to turn the control head on. If the unit does not power up,
make sure that the connector holder is fully seated in the receptacle and that
power is available.
2. If all connections are correct and power is available, the umminbird® control
head will enter Normal operation.
3. If the bottom is visible on-screen with a digital depth readout, the unit is working
properly. Make sure that the boat is in water greater than 2' but less than the
depth capability of the unit, and that the transducer is fully submerged, since the
sonar signal cannot pass through air.
NOTE: The transducer must be submerged in water for reliable transducer detection.
4. If the unit is working properly, gradually increase the boat speed to test high-
speed performance. If the unit functions well at low speeds, but begins to skip or
miss the bottom at higher speeds, the transducer requires adjustment.