Operations Manual
TABLE OF CONTENTS
INSTALLATION PREPARATION . . . . . . . . . . . . . . . . . . . . . . . 2
Parts Supplied . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Installation Overview . . . . . . . . . . . . . . . . . . . . . . . . . 2
Alternative Transducers and Mounting Methods. . . . . . 4
Transducer Exchange . . . . . . . . . . . . . . . . . . . . . . . . . 5
USING THE 150SX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
How Sonar Works . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Simulator Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 6
What You See On Screen . . . . . . . . . . . . . . . . . . . . . . 8
Control Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Menu Functions. . . . . . . . . . . . . . . . . . . . . . . . . 12
ADVANCED FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Using Diagnostic . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
MAINTENANCE AND WARRANTY . . . . . . . . . . . . . . . . . . 22
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Customer Support . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Rev. 10522E
INSTALLATION PREPARATION
PARTS SUPPLIED
PARTS SUPPLIED
Before installing your 150SX, please ensure the following parts are included
in the box:
• 150sx fish finder
• 6 ft (2m) power cable
• transducer with 20ft (6m) of cable • operations manual
• transducer mounting hardware kit
• mounting system and mounting
hardware kit
• installation sheet
• publications kit
If any of these items is missing, contact your local distributor.
ACCESSORIES
Humminbird offers a wide assortment of accessories that complement and
expand the capability of your new 150SX. These accessories are designed
with the same high standards and are backed by the same one-year
warranty. The Humminbird Accessory catalog included with your unit
contains descriptions of the many accessories available and ordering
information. All Humminbird accessories are available through your full-
service Humminbird dealer or factory direct through our number listed in
the Customer Support section.
INSTALLATION OVERVIEW
The 150SX consists of two primary components to install: the control head
and the transducer.
The control head contains the sonar transmit and receive circuitry, as well
as the user controls and display. It should be installed in a location that
provides access to the controls and visibility while in use. The control head
mounts on a quick disconnect mounting system that swivels and tilts
providing flexibility for viewing from almost anywhere on the boat.
The transducer 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 control head. It should be installed in contact with the
2
INSTALLATION PREPARATION
INSTALLATION OVERVIEW
surface of the water in an area that has smooth water flow - usually on the
transom of the boat. There are several mounting options for the
transducer. Review the following section to determine the method that
works for you and your boat.
Determining How to Mount the Transducer
The 150SX includes a model XHS-6-24 transducer. This transducer can be
mounted on the transom of the boat, or
bonded to the inside of a fiberglass hull
boat.
The transom installation, which is the
most widely used, places the transducer
on the outside of the boat hull. This
technique produces the least signal loss,
and provides a way to adjust the
transducer after installation. The
mounting hardware included is designed
to protect both the boat and the
transducer should the boat strike debris
in the water or when trailering.
Transom Mounted Transducer
As an alternative to transom mounting, it is possible on many fiberglass-
hulled boats to glue the transducer on the inside of the boat hull. Since
fiberglass has similar sonar character-
istics as water, the sonar signal can
pass through the boat hull with
minimal loss. The hull of the boat
must be single layer construction
(not double-hulled). Also, any air
trapped in the lamination of the
fiberglass would prevent the sonar
signal from passing through.
For additional details reference the
TRANSDUCER INSTALLATION section of
the enclosed Installation Sheet.
Inside the Hull Mounted Transducer
3
INSTALLATION PREPARATION
ALTERNATE TRANSDUCERS AND MOUNTING METHODS
Inside the hull installations require no holes be drilled into the boat and
through experimentation, high-speed operation comparable to transom
mounting can be achieved. Two part, slow cure epoxy is required to glue
the transducer in place.
ALTERNATE TRANSDUCERS AND MOUNTING METHODS
The 150SX comes with everything necessary for installation and operation
on most boats. However, there are several situations which may require a
different type of transducer. Inboard boats, wood or metal hulls, and sail
boats create unique transducer mounting needs. Alternate transducers and
mounting methods are detailed below.
Portable Mounting
The standard transducer can be adapted for
portable installations using part number MHX-
PT2. This accessory adapts your transducer to a
suction cup mount for temporary installation on
the boat hull or other surface.
Trolling Motor Mounting
The standard transducer can also be adapted to
mount on most trolling motors using part
number AD-STM-7. This accessory includes a
bracket and hose clamp that allows mounting
the transducer to the body of most trolling
motors.
4
INSTALLATION PREPARATION
TRANSDUCER EXCHANGE
TRANSDUCER EXCHANGE
Other transducers are available as replacements for the standard
transducer. You may exchange your new and unassembled transducer for
another type by returning it to the address listed in Customer Support.
Some transducers may have additional costs. Refer to the Accessory cata-
log or call Customer Support for information.
BEGINNING INSTALLATION
Now that you have determined the transducer mounting method, you can
begin installation of the 150SX. The fold out installation guide included
provides detailed step by step instructions for installation of the control
head and transducer. For transom mount transducer installations, you will
need the mounting template at the back of this manual.
In addition to the parts included you need the following for installation and
operation:
• A powered hand drill and various drill bits
• Phillips and flat-head screw drivers
• A ruler or measuring tape
• Pen or pencil
• 12 volt power source (your boat’s battery)
• A 1-amp fuse
• A fuse holder (if you are wiring directly to the boat’s battery)
• Silicone sealant (for sealing drilled holes)
• 2-part, slow-cure epoxy (for inside the hull transducer installations)
5
USING THE 150SX
HOW SONAR WORKS
HOW SONAR WORKS
Your Humminbird unit uses sonar to
locate and define underwater objects,
define the bottom terrain, as well as
determine distance.
Sonar technology is based on sound
waves. Your Humminbird unit sends
out a sound wave signal. With this
signal it determines distance by
measuring the time between the
transmission of the sound wave and
when the sound wave is reflected off
an object. Your Humminbird uses the
reflected signal to interpret location,
size and composition of an object.
Sonar is very fast. A sound wave can travel from the surface to a depth of
240' (70m) and back again in less than ¹⁄₄ of a second. It is unlikely that
your boat can "outrun" this sonar signal.
The 150SX is a 200 kHz, single-beam fishfinder. The 200 kHz frequency
provides excellent sonar resolution (the ability to distinguish small returns
or returns which are close to the bottom), while providing depth
capabilities to 600’ (185m). The shape of the sonar beam is symmetrical
and covers an area of approximately 24 degrees side to side and front
to rear.
Actual depth capability depends on factors such as bottom hardness, water
conditions, and transducer installation. Units will typically read to deeper
depths in fresh water than in salt water
SIMULATOR OPERATION
The 150SX contains a simulator that allows you to use the unit as if you are
on the water. The simulator is invaluable for learning how to operate the
150SX.
6
USING THE 150SX
SIMULATOR OPERATION
There are two ways to start the simulator. If
the unit is powered off, press and hold the
POWER button for approximately three
seconds until you hear a continuous chirp.
The simulator can also be started by
selecting the Simulator option on the start-
up screen after you power-up the unit.
When this screen is shown, simply press the DOWN ARROW until
“Simulator” is highlighted. When the screen times out, the unit will be in
simulator mode.
When in simulator operation, the 150SX responds to control inputs as if it
is in actual operation, so feel free to experiment, or to customize the unit
for your particular operation.
To exit Simulator mode, power the unit off.
When in simulator mode, the word “simulator” occasionally
scrolls across the display indicating the information on-screen is
not real sonar data.
FEATURE MEMORY
If your 150SX is installed with a transducer connected, any changes you
make to the set-up or User Options (see Control Functions) while in
Simulator are retained in the unit’s memory. This allows you to use
simulator to experiment with the various set-up options, and retain your
selected settings for normal operation.
If you are using the 150SX in Simulator when no transducer is connected,
any selected options are lost when the unit is powered off. The 150SX will
return to Factory Settings, or options selected when last used with a
transducer, if no transducer is connected.
IMPORTANT: A transducer must be connected to the 150SX in
order to retain user settings selected when in simulator mode. If
no transducer is detected, the unit defaults to pre-selected
options when powered off.
7
USING THE 150SX
WHAT YOU SEE ON-SCREEN
What You See On-Screen
Your 150SX uses a 128 V x 64 H matrix FSTN LCD display. This display
provides outstanding viewability in all light conditions over a wide range of
temperatures.
At initial power-up, the 150SX uses settings that were set at the factory.
After initial use, the 150SX will remember the settings you enter.
There are several elements on-screen that are common to all modes of
operation.
Depth. The digital depth number shows the water depth directly beneath
the transducer location.
Depth Range. The depth range is shown to the right of the screen. The upper
number is 0 indicating the surface of the water. The lower number is one of the nine
depth ranges available that best match the depth of the water. As the depth of the
water changes, the range changes as necessary in order to retain a bottom
representation on-screen.
When in Auto mode, the horizontal line at the top of the screen is the “zero line,”
representing the surface of the water. Occasionally there is a gap in this line. This gap
indicates the unit is updating the
Bottom Depiction
Zero Line
display even if the bottom is not visible
on-screen, or if the bottom information
is not changing.
New sonar information appears on the
right side of the graphic area of the
display and moves to the left as new
information is displayed. The 150SX
automatically selects the appropriate
depth range to show the depth of
water beneath the transducer. This
range is selected so the bottom
representation is typically shown about
²⁄₃ down the display.
Water Depth
Depth Range
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USING THE 150SX
WHAT YOU SEE ON-SCREEN
Bottom. The graphic depiction of the bottom provides an effective tool
for understanding the composition of the bottom. If the bottom is hard
and smooth, the bottom depiction is narrow and dense. If the bottom is
soft mud or sand, the depiction will be thick and less dense. This indicates
much of the signal is absorbed by the soft bottom. If the bottom is rocky
or rugged in composition, the depiction is of varying density and textured
in appearance.
Surface Clutter
Rocky Bottom
Wave action also affects the bottom
depiction. The information drawn is
a distance measurement, so if the
boat is moving up and down over flat
bottom, the bottom depiction often
appears in regular variations that
match wave timing.
Structure. Structure is defined as any
object physically attached to the
bottom. The sonar configuration of
the 150SX is optimized to give the
most accurate depiction of bottom
structure possible. Grass, trees,
stumps, wrecks or other debris are
accurately displayed, however the
depiction of these objects varies with
Soft Bottom
Hard Bottom
boat speed and direction. The best way to learn to interpret structure is to
operate the 150SX over a variety of known conditions and experiment with
user functions to best represent those conditions on-screen.
Surface Clutter. Surface clutter is the layer of water near the surface that
is rich in algae and other growth, and often is aerated by wind or wave
action. This area of water interferes with sonar transmission and often
appears on-screen as regular clusters of individual dots near the “0” line.
Thermoclines. Thermoclines are sharp differences in water temperature.
These are easily identified by the continuous nature of the return.
Second Returns. When a sonar signal is reflected off the bottom back to
9
USING THE 150SX
CONTROL FUNCTIONS
Thermocline Second Return
the transducer, there is often enough
energy left in the signal to be reflected
off the surface of the water back to the
bottom a second time. Second returns
appear as a slightly weaker bottom
representation exactly twice the depth
of the primary bottom return. The
second return is most likely to occur in
shallow water and in areas of relatively
hard bottom.
Fish ID. The 150SX uses advanced
signal processing to further evaluate any
sonar return between the surface and
the bottom. For instance, a small school
of bait fish usually appears as a dense
cluster of individual dots. If the return meets certain additional criteria, a fish
symbol will be assigned. There are three different size fish symbols used to
indicate the intensity of the sonar return. While signal intensity is a good
indicator of relative fish size, different species of fish have different sonar
characteristics, so it is not always possible to distinguish fish size between
varying species. The signal intensity is "normalized" for depth so that a
small fish close to the boat does not appear as a large fish symbol.
ID+ adds an additional piece of information to help the user locate fish. On
selected fish symbols, the digital depth of the designated fish is drawn to
help locate the fish vertically.
CONTROL FUNCTIONS
The 150SX uses a simple five button keypad for all user input. Press any button
and an audible “chirp” confirms the control input. If a button has no function
or is inappropriate for the situation, an audible “error” is heard. The unit sounds
multiple chirps.
Power. The Power button powers the 150SX up for normal operation. When
the unit is on, POWER turns the unit off. POWER can also be used to go directly
into Simulator mode. To enter simulator, with the unit powered off, press and
hold POWER for several seconds until a continuous chirp is heard.
10
USING THE 150SX
CONTROL FUNCTIONS
Light. LIGHT controls the unit’s display backlight. With
the unit powered on, press LIGHT once to turn the
backlight on “high.” Press LIGHT a second time to turn
the backlight on “low,” and a third time turns the
backlight off. The backlight is very effective for low-
light and nighttime operation. When the backlight is
on, the 150SX will consume more power than with the
backlight off. This is important when using the 150SX
in a portable configuration powered by a separate
battery, or when powering the unit from a trolling
motor battery.
When powering the unit from a battery such as in portable applications,
you can prolong the battery life by using the backlight at a minimum.
The three lower buttons, MENU, UP ARROW, and DOWN ARROW work
together to control the 150SX menu-controlled user functions.
Menu. MENU displays a menu on-screen
for adjustment. In normal operation,
Menu Heading
pressing MENU repeatedly cycles through
all available menu headings. When a menu
heading displays, the full menu appears
after a short pause. A menu remains on-screen for several seconds, and can
be adjusted by using the ARROW keys. If no adjustment is made in the
allotted time, the menu disappears. If you want the menu to remain on-
screen longer press and hold MENU—the menu will remain on-screen
indefinitely. Once you release the menu button, the screen will time out.
Once a menu times out, it is still considered the active menu. Press MENU
to bring up the last menu used.
Arrow Keys. The UP ARROW and DOWN ARROW make adjustments to
menu functions. On the left side of every menu there are UP ARROW and
DOWN ARROW symbols.
The ARROW buttons often can be used when no menu is on-screen. In
these situations, pressing the ARROW button affects the function of the
active (last-used) menu. This is a short-cut to menu operation. The menu
appears on-screen while the adjustment is made and times out. A
11
USING THE 150SX
MENU FUNCTIONS
frequently used menu can be adjusted very quickly using this technique.
After an adjustment is made to a menu function, the menu times out after
a few seconds and the unit returns to normal operation.
Menu Layout. All menus use the same basic layout. The heading at the
top describes the menu function. The UP ARROW and DOWN ARROW
symbols to the left of the menu indicate which buttons are available for
adjustment. In menus that have several possible settings, a range of
adjustment indicator shows the total range available and the current
setting.
Within the menu are the options available. The selected option or current
setting is highlighted in the black box. If no adjustment is made, this is the
selected setting. Press an ARROW button while the menu is displayed to
select another option.
Several of the menus are multi-step. In some situations if an adjustment is
made, additional options become available for further adjustment.
Examples of these multi-step menus are Depth Range, Depth Alarm and
Zoom. See the detailed description of each function for further
explanation.
Heading
Up Arrow Option
Arrow Symbols
Selected Setting
Down Arrow Option
Range of Adjustment Indicator
Menu Functions
Sensitivity. The Sensitivity function controls the sensitivity of the sonar
receiver. The 150SX automatically adjusts the level of receiver sensitivity
based on a number of factors including the depth of the water and the
level of noise present. Noise can be caused by other electronic devices,
engines, trolling motors, propeller cavitation and hydrodynamic flow
among others.
The user has the option of adjusting the Sensitivity higher or lower based
12
USING THE 150SX
MENU FUNCTIONS
on personal preference. You can select one of
11 sensitivity settings from -5 to +5. A setting of
0 (factory setting) has no effect on the auto-
matic sensitivity control. Increasing the
sensitivity (+1 through +5) enables the unit to
display the information from progressively smaller sonar returns. By
decreasing the sensitivity bias (-1 through -5), the unit effectively filters
small sonar returns.
In murky or muddy water, it is often helpful to reduce the sensitivity. This
prevents the display from being cluttered with sonar returns from debris or
suspended particles. In very clear or very deep water, it may be helpful to
increase the sensitivity since even the smallest sonar return may be of
interest to the user.
To adjust Sensitivity, press MENU repeatedly until the Sensitivity heading is
displayed. When the Sensitivity menu appears, use the UP ARROW to
increase the sensitivity, or the DOWN ARROW to reduce sensitivity. To
sequence through the available settings, press and hold either ARROW
button. Release the button at the setting you want to change.
After an adjustment is made, the menu disappears and the new sensitivity
setting is in affect.
Depth Range. The Depth Range function
controls the vertical distance displayed on
the graphic area of the display. There are
nine depth ranges available. The top of the
range is always 0, or the surface of the
water. Ranges of 0–15', 0–30', 0–60',
0–120', 0–180', 0–240', 0–360', 0–480',
and 0–600' are available. In the metric
version, ranges of 0–5, 0–10, 0–20, 0–40,
0–60, 0–80, 0–110, 0–150, and 0–185
meters are available.The range that positions the bottom depiction closest
to the bottom of the screen, will best utilize the available display resolution.
The 150SX automatically adjusts the depth range depending on the depth
of the water. The unit tries to maintain the bottom depiction about ²⁄₃
13
USING THE 150SX
MENU FUNCTIONS
down the total range (for example, in
20' (6m) of water, the 0-30' (0-10m)
range would be selected). This provides
the best display resolution and
therefore the best target separation
possible.
High Sensitivity Low Sensitivity
The Depth Range can be adjusted
manually. Press MENU repeatedly until
the Depth Range menu is visible. Two
options are available: Auto and
Manual.
The manual setting enables you to
adjust the current depth range setting.
The unit no longer adjusts the Depth
Range to the most appropriate range
Sensitivity at “0”
for bottom display. Often, the bottom may not be visible on-screen. The
digital depth readout always determines the depth of the bottom, even if
it is not visible on-screen.
Using manual Depth Range control, you can view sonar information from
the area near the surface in great detail.
To return to automatic Depth Range control, press the MENU button until
the Depth Range menu appears on-screen and use the UP ARROW to
select AUTO.
Zoom. Zoom is similar to Depth Range because it
controls the range of information displayed on
screen. Zoom, however, allows selection of ranges
beneath the surface so any area of water between
the surface and the bottom can be enlarged to
provide more detailed information. By using the full
display to show a small area of coverage, the effective display resolution is
increased, and the unit’s ability to separate close targets is enhanced.
There are four Zoom ranges available: 7¹⁄₂' (2m), 15' (5m), 30' (10m), and 60'
14
USING THE 150SX
MENU FUNCTIONS
(20m). These ranges are not directly user controlled
but are instead dependent on the current depth
range. In shallow water, when the 15' (5m) or 30'
(10m) range is in use, the Zoom range is 7¹⁄₂ (2m). If
the 60' (20m) or 120' (40m) range is in use, the
Zoom range is 15' (5m), if a 180'-480'
(60-150m) depth range is in use, the
Zoom range is 30' (10m), and if the 600'
(185m) range is in use, the Zoom range is
60' (20m).
To enable ZOOM, press MENU
repeatedly until the Zoom heading is
displayed. When the Zoom menu
appears, use the DOWN ARROW to
select ON then use the DOWN ARROW
to select either AUTO or MANUAL.
While using Automatic Zoom, the depth
adjustment is controlled automatically,
allowing you to view the area immediately
above the bottom. This is especially useful if
you are looking for structure or minor variations in
terrain in areas of relatively flat bottom terrain. If
MANUAL is selected, The digital depth readout will
continue to track the bottom even when Zoom is
enabled.
If MANUAL Zoom is selected, use the DOWN ARROW
to select ADJUST, then use the UP and DOWN arrows to scroll through the available
Zoom Ranges.
To disable Zoom, press the MENU button until the Zoom menu is on-screen. Use
the UP ARROW to highlight Off, and let the menu
time out.
Depth Alarm. The 150SX contains an audible
alarm to warn you of shallow water depths. The
15
USING THE 150SX
MENU FUNCTIONS
alarm is adjustable to depths of 3' (1m) to 99'
(30m). When the alarm is enabled, an audible
alarm sounds if the water beneath the boat is
equal to or less than the selected alarm depth.
The alarm sounds continuously for about five
seconds, and then intermittently to remind you
that you are still in shallow water.
Fish Alarm. The Fish Alarm alerts you to the
presence of fish, or other targets not connected
to the bottom. The Fish Alarm has three different
settings that correspond to the three different
size fish symbols shown on-screen.
The default setting is “OFF.” With the “Large fish
only” setting, the 150SX alarms on only those
targets that are represented by the large fish
symbols. The 150SX can be set to alarm on only
large and medium fish, or set to alarm on all fish.
Once the Fish Alarm is enabled, the 150SX emits
an audible beep when the
Set for large fish only
selected size fish symbol appears
on-screen.
Set for large and medium fish
Set for all fish
Options. The Options Menu is a
series of linked menu functions used initially to
set your preferences. Once your preferences are
selected, it is unlikely these functions need to be
accessed during the normal operation of the
product.
The Options menu works differently than other
menu functions in that all of the options must
be cycled through in order to return to normal
operation. There are eleven Option menus:
Contrast, Display Speed, Battery Alarm, Bottom Black, Fish ID, Numeral Size,
Diagnostic, Units, Languages, Depth Offset, Reset.
16
USING THE 150SX
MENU FUNCTIONS
Contrast. The Contrast function allows the user to
control the level of contrast of the LCD display. The
150SX will automatically adjust the display contrast
to compensate for changing ambient temperatures;
however, some situations may occur where manual
adjustment will provide a higher level of contrast.
Eleven contrast settings, +5 to -5, are possible. The
display contrast will change as the adjustment is made so the optimum
level of contrast can be achieved. Use the ARROW buttons to highlight the
desired selection. The 150SX will reset to the factory setting when the unit
is powered off.
Display Speed. Display Speed controls the
rate at which the graphic information
moves across the display. There are 5
possible speeds; the fastest rate (5) is the
factory setting. Keep in mind that the
closer the update rate matches your boat
speed, the more accurate is the graphic
depiction of the terrain beneath your boat.
Use the UP and DOWN ARROWS to select
the desired update rate. The Display Speed
setting is remembered when the unit is powered off.
Battery Alarm. The Battery Alarm Option
allows you to select the voltage level at
which the Battery Alarm activates.
At the Battery Alarm menu (under options),
you will note that the default setting is OFF.
Push the DOWN ARROW BUTTON to select
the feature ON. Push the DOWN ARROW
BUTTON again to move into the ADJUST BATTERY ALARM setting. Using
the UP and DOWN ARROW BUTTONS, select a voltage between 9.0 and
12.0.
When the voltage drops below your selected voltage, an audible alarm will
17
USING THE 150SX
MENU FUNCTIONS
sound, and a battery alarm icon will be displayed on screen with current
voltage level.
Bottom Black View
Bottom Black. There are two selections
available: OFF and ON. The factory
setting is OFF. With this setting, the
150SX displays the bottom using
Structure ID. This allows you to determine
the texture and relative hardness of the
bottom. Selecting Bottom Black “ON”
causes the unit to blacken in the display
below the bottom. This gives the user
easiest recognition of the bottom
location,
even
from
a
great
distance.
The
150SX
remembers the
Bottom
setting
Black
when
powered off.
Fish ID.
ID+ ON enables
the 150SX to
interpret the raw sonar data and, using a variety of
techniques, depict appropriate target returns as
one of three different size fish symbols. The 150SX
also displays the depth beneath the surface with
the corresponding fish symbol.
Raw Sonar
ID+ On
Selecting Adjust and making incremental changes
enhances the fishfinder’s ability to identify sonar
returns as fish symbols.
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USING THE 150SX
MENU FUNCTIONS
Increasing the value to a number greater than zero shows more fish
symbols on-screen. In this case smaller sonar returns will be depicted as fish
symbols. This is useful for identifying many smaller sonar returns (such as
baitfish) as fish symbols.
Decreasing the value to a number less than zero shows fewer fish symbols
on-screen. In this case smaller sonar returns are disregarded. This is useful
for eliminating many small sonar returns when seeking larger species of
fish.
The 150SX remembers this selection even when the unit is powered off.
Numeral Size. Two options are available: BIG and SMALL. The factory
setting is BIG. With this setting, the digital depth and speed and temp
numerals are drawn large enough to be read from across the boat. The
big numerals occupy space on the display that could be used for the
graphics area. Hence, the small numerals
option. With small numerals selected,
a greater amount of the display area
is available for the graphic view.
This effectively increases the display
resolution of the unit.
Numeral Size settings are remembered
when powered off.
Diagnostic. Two options are available: HIDE and
SHOW. The factory setting is HIDE. Selecting
SHOW brings up the Diagnostic screen. See the
Using Diagnostic section for more information.
Units. The Units function allows the user to select
the units of measurement for the depth. Choose
between FEET and METERS using the UP or
DOWN ARROW buttons. The 150DX remembers
this selection even when the unit is powered off.
19
USING THE 150SX
USING THE DIAGNOSTIC
Languages. The 150SX will have one of
two sets of languages. One set will be
available in the option menu. Language set
A includes: English, French, Italian, German,
Norwegian, Swedish, Spanish, and Finnish.
Language Set B provides Hungarian, Danish,
Polish, Portuguese, Dutch and English.To select
your language, push the UP or DOWN ARROW
BUTTONS to scroll through the list.
Depth Offset. The Depth Offset allows the user to select the point on
the boat from which the depth measurement is made. Selecting a positive value
adds distance to the measurement. If the transducer is mounted 3 feet beneath
the waterline, a positive 3 will show the correct depth from the surface of the
water.
Another frequent use of depth offset is to show
the depth beneath the deepest point of the hull.
A negative value equal to the distance from the
transducer location and the deepest point of the
hull will have the same effect as mounting the
transducer at the deepest point.
Depth offset is remembered after power is disconnected.
Reset. With the many User Options available to
customize the 150SX, it is easy to configure the unit
in such a way that it is detrimental to a particular
use. By using the Reset function, all variable or user-
controlled features of the 150SX are returned to the
factory settings.
The Reset function is an important first step in troubleshooting problems to
ensure that a user selected setting is not the cause for the perceived
problem.
USING THE DIAGNOSTIC FEATURE
The 150SX contains a powerful diagnostic tool that can aid in determining the cause
of a problem.
20
USING THE 150SX
USING THE DIAGNOSTIC
To use the Diagnostic feature, select the Diagnostic feature
on the start-up menu on the initial screen. Diagnostic can
also be accessed through the Options menu.
Self Test. Initially, the 150SX will perform a self-test.
This test confirms the operation of all internal
circuitry. At the conclusion of the test, one of two
messages will appear. PASSED indicates the internal
test discovered no failures, FAILED indicates a
significant internal problem was discovered and the
unit requires factory service. A code number appears
that tells repair personnel where the problem is.
Transducer Connection. The first connection tested is
Transducer input. If a transducer is detected, the
message CONNECTED appears. If a series of dashed
lines is shown, no transducer is connected or there is a
problem with the transducer or cable.
If you are using multiple transducers, switch between transducers to confirm
the connections for each.
Voltage Input. Another connection tested is the voltage input, and is
especially helpful in diagnosing input voltage problems. The current input
voltage is displayed. If voltage fluctuations or power supply in excess of 20
VDC or less than 10 VDC is suspected, use the diagnostic screen to confirm
input voltage. Often, small outboard motors do not effectively regulate
voltage when operated at high engine speeds.
Use Diagnostic while running the boat at high speeds to show the voltage
gain. Also, if you are using the 150SX in portable configuration or from the
trolling motor battery, Diagnostic can be used to evaluate the health of the
battery by showing the current voltage.
Total Time. The total time category indicates the total time the unit has
been in use since shipped from the factory. It is normal for some hours to
appear in the total time when the unit is new due to factory testing. While
this is often of interest to the user, it is primarily a diagnostic tool for the
repair technician should the unit need service.
21
MAINTENANCE AND WARRANTY
MAINTENANCE AND TROUBLESHOOTING
MAINTENANCE
Your 150SX is designed to provide years of trouble free operation with
virtually no maintenance. Follow these simple procedures to ensure your
150SX continues to deliver top performance.
• If the unit comes into contact with salt spray, simply wipe the affected
surfaces with a cloth dampened in fresh water. Do not use a chemical
glass cleaner on the lens. Chemicals in the solution may cause cracking in
the lens of the unit.
• When cleaning the LCD protective lens, use a chamois and non-abrasive,
mild cleaner. Do not wipe while dirt or grease is on the lens. Be careful to
avoid scratching the lens.
• If your boat remains in the water for long periods of time, algae and
other marine growth can reduce the effectiveness of the transducer.
Periodically clean the face of the transducer with liquid detergent.
Pivoting the transducer up in the bracket may allow better access for
inspection or cleaning.
• If your boat remains out of the water for a long period of time, it may
take some time to wet the transducer when returned to the water. Small
air bubbles can cling to the surface of the transducer and interfere with
proper operation. These bubbles dissipate with time, or you can wipe
the face of the transducer with your fingers after the transducer is in
the water.
• Never leave the 150SX in a closed car or trunk—the extremely high
temperatures generated in hot weather can damage the electronics.
TROUBLESHOOTING
Do not attempt to repair the 150SX yourself. There are no user serviceable parts
inside, and special tools and techniques are required for reassembly to ensure
the waterproof integrity of the housing. Repairs should be performed only by
authorized Humminbird technicians.
Many requests for repair received by Humminbird involve units that do not
22
MAINTENANCE AND WARRANTY
TROUBLESHOOTING
actually need repair. These units are returned “no problem found.” If you have
a problem with your 150SX, use the following troubleshooting guide before
sending your unit in for repair. The 150SX contains several tools that can aid in
determining if there is a problem and how to isolate and repair the problem in
many cases.
1. Nothing happens when I turn the unit on.
Check the power cable connection at both ends. Be sure the cable is connected
correctly to a reliable power source—red lead to positive, black lead to negative
or ground. Ensure the power available at the mount is between 10 and 20 VDC.
If the unit is wired through a fuse panel, ensure the panel is powered. Often
accessory fuse panels are controlled by a separate switch or the ignition switch.
Also, often a fuse can appear to be good when in fact is not. Check the fuse
with a tester or replace it with a fuse known to be good.
Check the power connection to the 150SX. It is possible to force the power
cable connector into the cable holder incorrectly. If the connector is reversed, the
unit will not work. Examine the contacts on the back of the unit to ensure there
is no corrosion. Finally, ensure the unit is firmly seated on the mount. The
electrical contacts are not made until the unit is fully seated.
Ensure the metal cable retainer is properly installed in the mount. If not, the
power connected may push out when the unit is put on the mount.
2. There is no transducer detected.
The 150SX has the ability to detect and identify that a transducer is connected.
If, at power up, a message indicates “transducer not connected,” only simulator
operation is possible. First, ensure that an appropriate transducer connector is
positioned correctly in the connector holder, and that the unit is fully seated on
the mount. The 150SX will work with the standard tri-beam transducer.
Second, inspect the transducer cable from end to end for breaks, kinks, or cuts
in the outer casing of the cable. Also ensure the transducer is fully submerged
in water. If the transducer is connected to the unit through a switch, temporarily
connect it directly to the unit and try again. If none of these items identifies an
obvious problem, the transducer itself is probably the problem. Be sure to in-
23
MAINTENANCE AND WARRANTY
TROUBLESHOOTING
clude the transducer if returning the unit for repair.
3. There is no bottom reading visible on the display.
There are a number of possible causes for this condition. If the loss of bottom
information occurs only at high boat speeds, the transducer needs adjusting. If
the digital depth readout is working but there is no bottom visible on-screen, it
is possible the depth range has been adjusted manually to a range lower than
what is needed to display the bottom. Also, in very deep water, it may be
necessary to manually increase the sensitivity setting to maintain a graphic
depiction of the bottom.
If you are using a transducer switch to connect two transducers to the 150SX,
ensure the switch is in the correct position to connect a transducer that is in
water. (If a trolling motor transducer is selected and the trolling motor is out of
water, no sonar information appears.)
If none of the above solve the problem, inspect the transducer cable from end
to end for breaks, kinks, or cuts in the outer casing of the cable. If the transducer
is connected to the unit through a switch, temporarily connect it directly to the
unit and try again. If none of these items identifies an obvious problem, the
transducer itself may be the problem. Be sure to include the transducer if
returning the unit for repair.
4. When in very shallow water, I get gaps in the bottom reading and
inconsistent digital depth indication.
The 150SX will work reliably in water 3' (1m) or deeper. The depth is measured
from the transducer, not necessarily from the surface.
5. The unit comes on before I press POWER, and won’t turn off.
Check the transducer cable—if the outer jacket of the cable has been cut and
the cable is in contact with bare metal, you need to repair the cut with electrical
tape. If there is no problem with the cable, disconnect the transducer from the
unit and see if the problem is corrected, to confirm the source of the problem.
6. I get gaps in the reading at high speeds.
Your transducer needs adjusting. If the transducer is transom-mounted, there
24
MAINTENANCE AND WARRANTY
WARRANTY
are two adjustments available to you—height, and running angle. Make small
adjustments and run the boat at high speeds to determine the effect. It may take
several tries to optimize high speed operation. This can also be a result of air or
turbulence in the transducer location caused by rivets, ribs, etc.
7. My unit loses power at high speeds.
Your 150SX has over-voltage protection that turns the unit off when input
voltage exceeds 20 VDC. Some outboard motors do not effectively regulate the
power output of the engine’s alternator and can produce voltage in excess of 20
volts when running at high RPMs. The 150SX displays input voltage in the
Diagnostic screen. Use this readout to determine if the voltage exceeds 20 VDC.
Use a voltage regulator or conditioner that provides 12 VDC output
over a wide range of input voltages. SureVolt™ from Humminbird is
a recommended unit, providing 12 VDC out with inputs from 6 VDC
to 23 VDC.
8. The screen begins to fade out. Images are not as sharp as normal.
Check the input voltage using Diagnostic. The 150SX will not operate on input
voltages below 10 VDC. See 7 above.
9. The display shows many black dots at high speeds and high
sensitivity settings.
You are seeing noise or interference caused by one of several sources.
Noise can be caused by other electronic devices. Turn off any nearby
electronics and see if the problem goes away. Noise can also be caused by
the engine. If engine noise is causing the interference, the problem will
intensify at higher RPMs. Increase the engine speed with the boat
stationary to isolate this cause. Propeller cavitation can appear as noise on-
screen. If the transducer is mounted too close to the propeller, the
turbulence generated can interfere with the sonar signal. Ensure that the
transducer is mounted at least 15" (38cm) from the prop.
25
MAINTENANCE AND WARRANTY
CUSTOMER SUPPORT
HUMMINBIRD ONE YEAR FULL WARRANTY
First year repairs (from original date of purchase) on your 150SX are
absolutely free. This does not include physical damage to the unit or its
accessory items. Any modification or attempt to repair the original
equipment or accessories by unauthorized individuals will void the
warranty. Return the warranty registration card and retain your bill of sale
for warranty verification. Accessories not manufactured under the
Humminbird trade name are not covered by our warranty. The customer is
responsible for shipping charges to Humminbird. Humminbird will provide
ground UPS or Parcel Post shipping back to the customer free of charge.
This warranty applies to the original purchaser only.
This warranty is in lieu of all other warranties expressed or implied and no
representatives or persons are authorized to provide for any other liability
in connection with the sale of our products. Humminbird reserves the right
to perform modifications or improvements on its products without
incurring the obligation to install the changes on units previously
manufactured, sold, delivered, or serviced.
THIS IS A FULL WARRANTY AS DEFINED BY THE FEDERAL WARRANTY ACT,
EFFECTIVE JULY 4, 1975.
CUSTOMER SUPPORT
If you have any questions or problems with your Humminbird unit, contact
your local distributor.
Humminbird
Service Department
108 Maple Lane
Eufaula, AL 36027
USA
26
SPECIFICATIONS
Operating Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .200 kHz
Power Output . . . . . . . . . . . . . . . . . . . . . . . . . . . .250 Watts (RMS)
2000 Watts (Peak to Peak)
Area of Coverage . . . . . . . . . . . . . . . . . . . . . . . . . . .24° at -10 db
Power Requirement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 VDC
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .FSTN LCD
LCD Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . .128 V x 64 H Pixels
Viewing Area . . . . . . . . . . . . . . . . . . . . . . . . . . .2.90" V x 2.35" H
(7.3cm V x 5.97cm H)
Mounting . . . . . . . . . . . . . . . . . . . . . . . . .Quick Disconnect Mount
Unit Size . . . . . . . . . . . . . . . . . . . . . . . . . .6³⁄₄"H x 61⁄₄"W x 4¹⁄₄"D
(17.1cm H x 15.9 cm W x 10.5 cm D)
Transducer (Standard) . . . . . . . . . . . . . . . . . . . . . . . . . . . .XHS-6-24
Transducer Cable Length . . . . . . . . . . . . . . . . . . . . . . .20' (6 meters)
Depth Ranges . . . .15', 30', 60', 120', 180', 240', 360', 480', & 600'
(5, 10, 20, 40, 60, 80, 110, 150 & 185 meters)
Zoom Ranges . . . . . . . . . . . . . . . . . . . . . . . . . .7¹⁄₂', 15', 30', & 60'
(2, 5, 10 & 20 meters)
27
For use with bracket PN 404329-1
P/N 530974-2
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