Furuno LH-3000 User manual

LOUD HAILER
LH-3000

i
SAFETY INSTRUCTIONS
WARNING
Do not disassemble or modify the
equipment.
Fire, electrical shock or serious injury can
result.
Do not place liquid-filled containers on
the top of the equipment.
Fire or electrical shock can result if a liquid
spills into the equipment.
Immediately turn off the power at the
switchboard if the equipment is emitting
smoke or fire.
Continued use of the equipment can cause
fatal damage to the equipment. Contact a
FURUNO agent for service.
Make sure no rain or water splash leaks
into the equipment.
Fire or electrical shock can result if water
leaks in the equipment.
Keep heater away from equipment.
A heater can melt the equipment's power
cord, which can cause fire or electrical
shock.
Use the proper fuse.
Use of a wrong fuse can result in damage
to the equipment.
Do not open the equipment.
Only qualified personnel should work inside
the equipment.
CAUTION
Do not use the equipment for other than
its intended purpose.
Use of the equipment for other than its
intended purpose may result in damage to
the equipment or cause bodlily injury.
Observe the following compass safe
distances to prevent interference to a
magnetic compass:
LH-3000 1.55 m 1.00 m
Standard
compass
LH-3010 2.15 m 1.40 m
Steering
compass

ii
TABLE OF CONTENTS
FOREWORD ........................................................................................................iii
SYSTEM CONFIGURATION................................................................................ iv
EQUIPMENT LIST................................................................................................ iv
1. INSTALLATION................................................................................................1
1.1 Mounting the Loud Hailer..............................................................................................1
1.2 Intercom Speaker (option).............................................................................................3
1.3 Wiring............................................................................................................................4
2. OPERATIONAL OVERVIEW............................................................................9
2.1 Controls.........................................................................................................................9
2.2 Turning the Power On/Off............................................................................................10
2.3 Adjusting Key Backlighting..........................................................................................11
2.4 Adjusting Output Level................................................................................................11
2.5 Adjusting Listening Volume .........................................................................................11
2.6 Calling All Intercom Stations........................................................................................11
2.7 Calling a Specific Intercom Station ..............................................................................12
2.8 Receiving a Call from an Intercom Station...................................................................12
2.9 Hailing by Voice...........................................................................................................13
2.10 Sounding Warning Signals ..........................................................................................14
2.11 Transmitting the Auxiliary Signal..................................................................................18
2.12 Alarm Mode.................................................................................................................19
3. MAINTENANCE, TROUBLESHOOTING .............................................................21
3.1 Preventive Maintenance..............................................................................................21
3.2 Replacing the Fuse .....................................................................................................22
3.3 Troubleshooting...........................................................................................................22
SPECIFICATIONS...........................................................................................SP-1
PACKING LIST
OUTLINE DRAWINGS
INTERCONNECTION DIAGRAM

iii
FOREWORD
A Word to the Owner of the LH-3000
Congratulations on your choice of the FURUNO LH-3000 Loud Hailer. We are confident you
will see why FURUNO has become synonymous with quality and reliability.
For over 50 years FURUNO Electric Company has enjoyed an enviable reputation for
innovative and dependable marine electronics equipment. This dedication to excellence is
furthered by our extensive global network of agents and dealers.
Your Loud Hailer is designed and constructed to meet the rigorous demands of the marine
environment. However, no machine can perform its intended function unless installed,
operated and maintained properly. Please carefully read and follow the recommended
procedures for installation, operation and maintenance.
We would appreciate hearing from you, the end-user, about whether we are achieving our
purposes.
Thank you for considering and purchasing FURUNO equipment.
Features
• 30 W audio output power to get another boat’s attention under almost any condition.
• Eight internationally accepted warning signals can be selected for automatic operation for
a variety of different maritime situations alerting nearby vessels of your presence and
status in low visibility conditions.
• Four intercom stations (speakers) may be connected to get 2-way communications
between master station and one or all intercom stations.
• LED indicators alert you to equipment status.
• Keys are backlit for nighttime operation.
• Smartly designed and intuitive front panel for ease of operation.
• An auxiliary audio input allows transmission of music or other external audio signals (from
cassette player, CD player, radio, etc.) to the intercom speakers, external horns or both.

i
v
SYSTEM CONFIGURATION
Intercom Speaker
(Max. 4)
Forward Horn
After Horn
External Speaker
Remote Microphone
Auxiliary Audio
Source
Alarm Sensor
13.6 VDC
: Standard Supply
: Optional Supply
: Local Supply
Microphone
Junction
Box
DIM
AFT BOTH FWD ALL
AUX
FUNC
IC 4IC 3
TOW SAIL
HAIL
VOL
ANCH AGND
IC 2
UNWY
IC 1
YELP
FUNC/PTT
LISTEN
STOP
VOL
MAN
AUTOMATIC
PWR OFF
MIC
System configuration
EQUIPMENT LIST
Standard supply
Name Type Code No. Qty Remarks
Loud Hailer LH-3000 1
Microphone Set DM-2003 1 set
Installation
Materials 1 set
Spare Parts 1 set
Template E52-00303 000-149-157 1
See packing list for details.
Optional supply
Name Type Code No. Qty Remarks
Intercom Speaker LH-3010 000-149-111 1 Max. 4
Flush Mount Kit LH-3020 000-149-112 1 See packing list.
000-111-680 1 5 m
000-120-892 1 10 m
000-120-793 1 15 m
Twisted Pair Cable CO-SPEVV-SB-C
0.2X2P
000-120-794 1 20 m

1
1. INSTALLATION
1.1 Mounting the Loud Hailer
The Loud Hailer can be mounted on a desktop, on the overhead, on a bulkhead or flush
mounted in a panel (optional kit required). Refer to the mounting template (supplied) for
installation instructions.
Mounting considerations
When planning the location for the Loud Hailer, keep in the mind the following
considerations.
• Locate the unit where the front panel can be easily viewed and operated.
• Leave sufficient space at the sides and rear of your unit for ease of maintenance.
• Locate the unit as near to the power source as possible.
• The location should be out of direct sunlight because of heat that can build up inside the
cabinet.
• Choose a location not subject to rain and salt spray.
• Locate the unit well away from sources of noise such as motors, alternators and
generators.
Mounting procedure
Desktop, bulkhead, overhead mounting
1. Attach rubber cushions (supplied) to the body of the Loud Hailer. Position the cushions
so they locate across from the bottom of the slot in the hanger regardless of mounting
method.
Rubber
cushion
2. Fix the hanger to the mounting location with tapping screws (6x20).
3. Screw knob bolts into the Loud Hailer.
4. Set the Loud Hailer to the hanger and tighten knob bolts.

1. INSTALLATION
2
Flush mounting
Requires flush mount kit LH-3020 (Code No. 000-149-112). See the flush mount outline
drawing for details.
Contents of flush mount kit
Name Type Code No. Qty
Flush Mounting Plate TZ7300012A 999-999-025 2
Screw 6X12 SUS304 999-999-027 2
Wing Screw M4X35 SUS304 999-999-027 4
Wing Nut M4 SUS304 999-999-028 4
1. Make a cutout in the mounting location referring to flush mount outline drawing.
2. Place the Loud Hailer in the cutout.
3. Fix the two flush mounting plates to the Loud Hailer with screws.
4. Screw the wing nuts on the wing screws.
5. Fix the Loud Hailer with the wing bolts and then tighten the wing nuts.
Loud hailer, flush mount

1. INSTALLATION
3
1.2 Intercom Speaker (option)
Four intercom speakers (maximum) may be connected to get 2-way communications
between master station and one or all intercom speakers. For mounting dimensions and
fixing instructions, see the outline drawing.
Intercom speaker

1. INSTALLATION
4
1.3 Wiring
All equipment are terminated at the rear panel of the LH-3000. See the illustration on the
next page for how to connect equipment to terminals. Refer to the interconnection diagram
for detailed information.
Rear panel layout
Ground
Terminal
External Speaker
J2
J3
J1
13.6 VDC (Power),
FWD and AFT
terminals
SP and CAL (intercon
station #1 - #3) terminals
MIC, AUX, ALRM, PTT, CAL
and SP (intercom speaker #4)
terminals
Connect drain wires of armored cables to the ground terminal.
Do not short them to the heat sink.
NOTICE
LH-3000, rear panel

1. INSTALLATION
5
Wiring
The illustration below shows how to connect the power supply. Other equipment are
connected similarly.
J1
(1) Unfasten screws.
(2) Pull out terminal.
- +
(3) Insert wire into terminal,
and tighten screw at top
of terminal.
J2
J3
AFT FWD 13.6V
- + - + - +
TERMINAL ARRANGEMENT
0V 0V 0V 0V 0V4 CAL4
MIC PTT AUX ALRM SP4
J3
- + - + - +
AFT FWD 13.6V
J1
0V3 CAL3 SP2 0V1 CAL1
SP3 0V2 CAL2 SP1
J2
(4) Set terminal;
tighten screws.
Jeweler’s
screwdriver
Note: Connect power cables
to the battery correctly.
ppppp
pppp p p
LH-3000, rear panel, how to wire terminals

1. INSTALLATION
6
Power connection
The LH-3000 is intended for
use with a 13.6 VDC power
supply. Connect the power
cable (local supply) to the
terminals labeled “13.6V”.
Use cable type DPYC-1.5 or
equivalent. Fabricate the
cable as shown below. For
longer runs the wire size of
leads should be increased
accordingly to minimize line
losses. The wire connected to the positive (+) terminal must be connected to the positive
terminal on the DC power source, and the wire connected to the negative terminal (-) must
be connected to the negative terminal on the DC power source. If the power leads are
reversed the fuse (inside the Loud Hailer) will blow.
Intercom speaker (option)
Up to four intercom speakers may be connected to the intercom speaker terminals labeled
CAL1-CAL4. Connect each speaker to the terminal block according to desired intercom
speaker selection. The cable end is prefabricated. However, to meet EMC requirements the
length of the cable must be less than 1 m. If the distance between the Loud Hailer and
intercom speaker is greater than 2 m (max. 20 m), use a junction box (local supply). For the
connection to the junction box use cable type CO-SPEVV-SB-C 0.2X2P (option) and
fabricate it as below. In this case, the length of the cable between the junction box and an
intercom speaker must no be more than 1 m regardless of whether the equipment must
meet EMC requirements or not.
Loud Hailer Intercom
Speaker
2 m max.
Distance between loud hailer and intercom speaker is less than 2 m.
Loud Hailer Junction
Box 1 m max.
Distance between loud hailer and intercom speaker is 2-20 m.
Intercom
Speaker
2-20 m max.
45
11 7
Outer sheath
Twist and trim the shield.
Inner sheath Remove the outer sheath and
armor by 45 mm.
Remove the inner sheath by 11 mm,
and the sheath of the cores by 7 mm.
Cut the unused cores.
Solder a vinyl wire to the shield.
Tape the sheath.
Vinyl wire
Vinyl
tape
Fabrication of speaker cable
Conductor
S = 1.5 mm
φ= 1.56 mm
2
Armor
Sheath
φ =
11.7 mm
DPYC-1.5 Sectional view
77 3
7
Armor
Cut the sheath.
Sheath
15 10
L*
515
Drain wire fabrication
Solder drain wire
* Length long enough to
reach ground terminal.

1. INSTALLATION
7
Hailer horn (local supply)
Mount the hailer horns (local supply) facing away from the Loud Hailer to prevent feedback.
They should also be pointed in the opposite direction of the microphone as you are
speaking into it. Before mounting any horn, you should test it with the HAIL feature with the
horn in the desired location to check for suitability of mounting location.
Connect horns to the Loud Hailer with cable type DPYC-1.5 or equivalent. (See page 6 for
how to fabricate this cable.) Be sure the cable is suitable for all-weather use. The
terminating point on the terminal is either FWD orAFTdepending on the location of the
speaker.
Burglar alarm (local supply)
The unit can function as a burglar alarm by connecting an external alarm sensor (local
supply) to theALRM terminals. The alarm sensor should be a “normally open switch”. Use
cable type TTYCS-1 or equivalent to connect the sensor. Fabricate the cable as shown
below.
When the sensor connected to theALRM terminal becomes shorted and the alarm function
is active, the yelp signal is released at maximum volume through both hailer horns.
77 3
8
L*
515
7
Armor
Drain wire fabrication
Drain wire
Twist and cut
Vinyl tape
Shield
Solder
15 10 2
Armor
Conductor
S = 0.75 mm
φ= 1.11 mm
Shield
Sheath
φ = 10.1 mm
TTYCS-1 Sectional view
* Length long enough to
reach ground terminal.
Fabrication of cable TTYCS-1

1. INSTALLATION
8
Floating ground
The LH-3000 has a floating ground. What this means is that the heat sink ground is floating
and will not ground batteries if they are connected to the ship’s chassis. To maintain a
floating ground:
1. Use a stereo plug when connecting a 4 ohm speaker to the external speaker plug.
Connect it as shown in the illustration below.
Do not use for battery -
use for ship's earth only
Stereo plug
2. Do not connect any of the output connectors on the rear panel to the ship’s ground.
3. SP outputs are floating and must not be connected to either battery or the rear panel.
Use a normal two conductor insulated speaker wire for the horn speaker.
Output power
The output power may be set for 30 W or 20 W, and the default settings is 30 W. For 20 W
output contact a FURUNO agent or dealer for details.
Note: If an external speaker is used it must be capable of handling the rated output power.

9
2. OPERATIONAL OVERVIEW
2.1 Controls
DIM
AFT BOTH FWD ALL
AUX
FUNC
IC 4IC 3
TOW SAIL
HAIL
VOL
ANCH AGND
IC 2
UNWY
IC 1
YELP
FUNC/PTT
LISTEN
STOP
VOL
MAN
AUTOMATIC
PWR OFF
MIC
1
2
3
4
56
7
89
10
11
12
LH-3000, front view
Control description
1[Hail Select] Key
Chooses loud hailer speaker to use (ALL, FWD, AFT,
BOTH).
2[Intercom Select] Key
Chooses which intercom station (IC1, IC2, IC3, IC4) to
call.
3[Upper Signal Select] Key
Chooses warning signal among YELP, UNWY, SAIL and
TOW.
4[Lower Signal Select] Key
Chooses warning signal among MAN, STOP, ANCH and
AGND.
5[DIM] Key
Adjusts indicator backlighting, in five levels, including off.
6[AUX] Key
Transmits audio signal from external source to all intercom
stations.

2. OPERATION
10
7[FUNC] Key
Activates automatic and manual warning signals.
8[LISTEN VOL] Control
Adjusts listening volume from the internal speaker; turns
power on/off.
9[HAIL VOL] Control
Adjusts output volume from the horn speakers or intercom
station speakers.
10 LED Indicators
From top row:
- Hail indicators (ALL, FWD, AFT BOTH)
- Intercom indicators (IC1 – IC4)
-Alarm signal indicators (YELP(manual), UNWY, SAIL,
TOW)
- FUNC/PTT and AUTOMATIC indicators
- Alarm signal indicators (MAN(manual), STOP, ANCH,
AGND)
11
MIC
MIC input
12
Speaker
2.2 Turning the Power On/Off
Turn the [LISTEN VOL] control clockwise to turn on the Loud Hailer. The “ALL” indicator
lights, which means the Loud Hailer is in standby and awaiting your command.
The equipment is in the standby mode when the “ALL” indicator is lit. Normally, the
equipment should be returned to the standby mode after a function has been completed. In
the standby mode the Loud Hailer is ready to call all stations, including both horn speakers
and all intercom stations, and is ready to receive a call from any intercom station.

2. OPERATION
11
2.3 Adjusting Key Backlighting
You may adjust the intensity of the key backlighting cyclically with the [DIM] key, in five
levels, including off.
2.4 Adjusting Output Level
Turn the [HAILVOL] control to adjust the output volume from the horn speakers or intercom
speakers. Clockwise rotation increases volume; counterclockwise rotation decreases it.
2.5 Adjusting Listening Volume
Turn the [LISTEN VOL] control to adjust the listening volume from the Loud Hailer’s internal
speaker and external speaker (if connected).
2.6 Calling All Intercom Stations
1. In the standby mode, hold the microphone 2-3 cm from your mouth and press the PTT
switch on the microphone. Speak into the microphone. All intercom stations and both
horn speakers will hear you.
2. After speaking, release the PTTswitch to return the equipment to the standby mode.
Note:To call all intercom stations while sounding warning signals, see page 17.

2. OPERATION
12
2.7 Calling a Specific Intercom Station
1. Press the [Intercom Select] key until the indicator lights on the desired intercom station.
After a one-second delay, a short tone sounds from the selected intercom station.
2. Press the PTT switch on the microphone and speak into the microphone.
3. Release the PTT switch to listen for a reply from the selected intercom station. If
necessary, adjust listening volume with the [LISTEN VOL] control.
4. After completing your conversation, press the [Hail Select] key to return to the standby
mode.
Note:To call a specific intercom stations while sounding warning signals, see page 17.
2.8 Receiving a Call from an Intercom Station
When an intercom station is calling the main station, the indicator for the calling station
flashes on the main station’s indicator and a tone sounds while the intercom station
operator is pressing the station’s calling switch.
Automatically selecting a single calling station
1. In the standby mode, press the PTT switch on the microphone to answer the call. The
LH-3000 automatically switches to the calling station and the flashing indicator then
lights steadily.
2. If necessary, adjust listening volume with [LISTEN VOL] control.
3. After you have finished your conversation, press the [Hail Select] key to return to the
standby mode.
Automatically selecting multiple calling stations
When you receive a call from more than one station, the appropriate intercom station
indicators flash and a tone sounds.
1. In the standby mode, press the PTT switch on the microphone. When calls are received
simultaneously, the low-number station will be selected first.
2. After you have completed your conversation, press the [Hail Select] key to return to the
standby mode.
3. Press the PTT switch on the microphone again and the next low-number station will
automatically be selected.
4. After you have finished all intercom conversations, press the [Hail Select] key to return
to the standby mode (“ALL” indicator lights).
Calling all intercom stations while an intercom voice is selected
1. Press and hold the [Hail Select] key.
2. Press the PTT switch on the microphone and speak into the microphone.All station
indicators flash.

2. OPERATION
13
Manually selecting a calling station
1. Press the [Intercom Select] key until the indicator lights for the desired station.
2. Press the PTT switch on the microphone and answer the call.
3. Release the PTT switch to listen to the intercom station.Adjust listening volume with the
[LISTEN VOL] control if necessary.
4. To call another station, select the next station with the [Intercom Select] key.
5. After you have finished all conversations, press the [Hail Select] key to return to the
standby mode.
Intercom station operation
Press the button on the intercom to call. Release the button to listen.
2.9 Hailing by Voice
1. Press the [Hail Select] key until the indicator lights for the desired horn speaker(s).
2. Press the PTT switch on the microphone and speak into the microphone. If necessary,
adjust the output power to the speaker(s) with the [HAIL VOL] control.
3. Release the PTT switch and the Loud Hailer will switch to the listening mode, using the
speaker(s) as microphone(s). If necessary, adjust listening volume with the [LISTEN
VOL] control.
4. After speaking, press the [Hail Select] key to return to the standby mode.

2. OPERATION
14
2.10 Sounding Warning Signals
Your Loud Hailer has eight different warning signals: two manual and six automatic. The two
manual signals, YELP and MAN, are designed to be sounded at each press of the PTT
switch on the microphone. The six automatic signals are sounded when the [FUNC] key is
operated.
Only the horn speakers sound warning signals and the volume is automatically set to
maximum when sounding warning signals.
Description of warning signals
Manual warning signals
MAN: Signal for passing. The lengths and timing of the horn blasts are controlled by
pressing the PTTswitch on the microphone.
YELP: Yelp type emergency siren.
500 Hz
250 Hz 1 s
Yelp signal
Automatic warning signals
UNWY: Warning signal for power-driven vessels underway. One 5-second blast at 120
second interval intervals.
5 s
120 s
Underway signal