Furuno 1932 MARK-2 User manual

C
9-52, Ashihara-cho,
Nishinomiya, Japan
Telephone: [phone]
Telefax: 0798-65-4200
Your Local Agent/Dealer
All ri
g
hts reserved.
PUB. No. IME-34620-D
MODEL-1932/1942 MARK-2
(
YOSH
)
FIRST EDITION : AUG. 1998
D : SEP. 4, 2001
Printed in Japan

i
SAFETY INSTRUCTIONS
WARNING
Radio Frequency Radiation Hazard
The radar scanner emits electromagnetic radio frequency (RF) energy which can be
harmful, particularly to your eyes. Never look directly into the scanner aperture from a
close distance while the radar is in operation or expose yourself to the transmitting
scanner at a close distance.
Distances at which RF radiation levels of 100 and 10 W/m2exist are given in the table
below.
Note: If the scanner unit is installed at a close distance in front of the wheel house,
your administration may require halt of transmission within a certain sector of scanner
revolution. This is possible Ask your FURUNO representative or dealer to provide
this feature.
MODEL Radiator
type Distance to
100 W/m2
point
Distance to
10 W/m2
point
1932 MK-2
1942 MK-2
XN10A
XN12A Nil
Worst case 3.0 m
Worst case 2.5 m
Worst case 0.2 m

ii
CAUTION
CAUTION
Observe the following compass safe
distances to prevent deviation of a
magnetic compass:
Ground the equipment to
prevent electrical shock and
mutual interference.
Display
unit
Standard Steering
compass compas
0.75 m 0.60 m
Scanner
unit 1.00 m 0.80 m
DANGER
Electrical shock hazard.
Do not touch parts in -
side this cover.
Name: Danger Label
Type: 14-055-4202-0
Code No.: 100-245-220
HIGH TENSION WARNING
Do not open the equipment
unless totally familiar with
electrical circuits and
service manual.
Only qualified personnel
should work inside the
equipment.
Wear a safety belt and hard
hat when working on the
scanner unit.
Serious injury or death can
result if someone falls from
the radar scanner mast.
WARNING
WARNING
Construct a suitable service platform
from which to install the scanner unit.
Serious injury or death can result if some-
one falls from the radar scanner mast.
Turn off the power at the mains switch-
board before beginning the installation.
Fire, electrical shock or serious injury can
result if the power is left on or is applied
while the equipment is being installed.
Do not install the display unit where it
may get wet from rain or water splash.
Water in the display unit can result in fire,
electrical shock or equipment damage.
ELECTRICAL
SHOCK
HAZARD
WARNING
WARNING
Be sure that the power supply is
compatible with the voltage rating of
the equipment.
Connection of an incorrect power supply
can cause fire or equipment damage. The
voltage rating of the equipment appears
on the label above the power connector.
Use only the specified power cable.
Fire or equipment damage can result if a
different cable is used.

iii
TABLE OF CONTENTS
SYSTEM CONFIGURATION .............................................................iv
EQUIPMENTS LIST............................................................................v
1. MOUNTING
1.1 Mounting Methods for Scanner Unit..................................................................1-1
1.2 Fixing Holes in Mounting Platform ....................................................................1-1
1.3 Fastning the Radiator to the Radiator Bracket..................................................1-2
1.4 Mounting the Scanner Unit................................................................................1-2
1.5 Display Unit Mounting .......................................................................................1-4
2. CONNECTIONS
2.1 Connecting the Signal Cable.............................................................................2-1
2.2 Display Unit Connections..................................................................................2-2
2.3 Connection of External Equipment....................................................................2-3
2.4 Exchange of Fuse for 24/32V Power Supply.....................................................2-4
2.5 Checking the Installation...................................................................................2-4
3. ADJUSTMENTS
3.1 Preparation........................................................................................................3-1
3.2 Adjusting Tuning/Video......................................................................................3-1
3.3 Entering Antenna Height ...................................................................................3-1
3.4 Aligning Heading ...............................................................................................3-2
3.5 Adjusting Sweep Timing ....................................................................................3-2
3.6 Adjusting MBS...................................................................................................3-3
3.7 Selecting STC Curve.........................................................................................3-3
3.8 Setting Dead Sector ..........................................................................................3-3
3.9 Checking Magnetron Heater Voltage ................................................................3-4
4. INSTALLATION OF ARP-10 (OPTION)
4.1 Necessary Parts................................................................................................4-1
4.2 Mounting ...........................................................................................................4-1
4.3 Adjustments.......................................................................................................4-1
INSTALLATION MATERIALS, ACCESORIES, SPARE PARTS..... A-1
OUTLINE DRAWING ...................................................................... D-1
SCHEMATIC DIAGRAM ................................................................. S-1

iv
SYSTEM CONFIGURATION
RDP-118
Auto Plotter
ARP-10
(24 rpm only)
Navigation
device IEC 61162* (In/Out)
IEC 61162* (In/Out)
Video Sounder
Gyro-
compass Gyro Converter
AD-100
Integrated Heading
Sensor PG-1000
12/24/32 VDC
Rectifier
RU-3423
115/230 VAC
External Alarm
Buzzer OP03-21
Remote Display
FMD-811/1800
Radar Plotter
RP-110
Scanner Unit
MODEL 1932 MARK-2
XN10A-RSB-0070-064 (24 rpm)
XN10A-RSB-0073-064 (48 rpm)
Display Unit
12 VDC: 10A
24/32 VDC: 5A
MODEL 1942 MARK-2
XN12A-RSB-0070-059 (24 rpm)
XN12A-RSB-0073-059 (48 rpm)
*Equivalent to NMEA 0183
: Option
: Local Supply
Note: Even though the display unit meets waterproof standard IPX-5, the connection of ex-
ternal buzzer, radar plotter and/or remote display can affect waterproofness. Watertight integ-
rity cannot be guaranteed. When these modification has been done, the display unit should
not be mounted where exposed.
Input data
Own ship’s position: GGA>RMC>RMA>GLL (GLL is available Ver.1.5 only)
Speed: RMC>RMA>VTG>VHW
Heading (True): HDT>HDG *1>HDM *1 >VHW>VHW*1
Heading (Magnetic): HDM>HDG *1>HDT *1>VHW>VHW *1
Course (True): RMC>RMA>VTG
Course (Magnetic): VTG>RMC>RMA
Waypoint (Range, Bearing): RMB>BWC>BWR
Loran time difference: RMA>GLC>GTD
Water depth: DPT>DBT>DBK>DBS
Water temperature: MTW>MDA
Time: ZDA
XTE: RMB>XTE>APB
Output data
NMEA0183 (Ver.1.5/2.0), RS-422
TLL(target data) and RSD
*1: calculate by magnetic drift.

v
EQUIPMENT LISTS
Standard Supply
emaNepyT.oNedoCytQskrameR
tinUrennacS
460-0700-BSR-A01NX—
tceleS eno mpr42,2M2391roF
460-3700-BSR-A01NX— mpr84,2M2391roF
950-0700-BSR-A21NX—
tceleS eno mpr42,2M2491roF
950-3700-BSR-A21NX— mpr84,2M2491roF
tinUyalpsiD811-PDR—1
noitallatsnI slairetaM
00391-30PC419-680-000
tceleS eno
,elbacrewop,10481-30PC elbaclangism01
01391-30PC519-680-000 ,elbacrewop,10481-30PC elbaclangism51
02391-30PC619-680-000 ,elbacrewop,10481-30PC elbaclangism02
03391-30PC719-680-000 ,elbacrewop,10481-30PC elbaclangism03
seirosseccA00460-30PF278-680-000tes101840-30PF,01460-30PF
straPerapS00221-30PS569-680-000tes1
Optional Supply
emaNepyT.oNedoCskrameR
*rezzuBlanretxE12-30PO790-030-000
reifitceR3243-UR344-030-000
.yssAelbaC
001-7000FPS6A-JM732-521-000 P6/wm01,rosnesgnidaehroF thgiarts,sdnehtobtarotcennoc
050-2100FPS6A-JM424-431-000 m5,rednuosoediv,diavanroF ,sdnehtobtarotcennocP6/w ssorc
001-2100FPS6A-JM718-331-000 m01,rednuosoediv,diavanroF ,sdnehtobtarotcennocP6/w ssorc
001-9000FPS6A-JM632-521-000 ,rednuosoediv,diavanroF P6/wm01,rosnesgnidaeh edisenotarotcennoc
elbaClangiS050-3000FPS6A-JM306-711-000dneenotarotcennocP6/w,m5
tiKtnuoMhsulF541-30PO060-674-800tinuyalpsidroF
rettolPotuA01-PRA258-680-000.rennacsmpr42htiwelbaliavA
*rettolPradaR011-PR-
.yssAelbaC500-6000FPL42B-JM834-041-000rotcennocretrevnocelbaC lanretxefonoitcennoceht,5-XPIdradnatsfoorpretawsteemtinuyalpsidehthguohtnevE:* ytirgetnithgitretaW.ssenfoorpretawtceffanacyalpsidetomerro/dnarettolpradar,rezzub ebtondluohstinuyalpsideht,enodneebsahnoitacifidomesehtnehW.deetnaraugebtonnac .desopxeerehwdetnuom

1-1
1. MOUNTING
1.1 Mounting Methods for
Scanner Unit
• The scanner unit is generally installed ei-
ther on top of the wheelhouse or on the
radar mast on a suitable platform. Locate
thescanner unit wherethere isa good all-
round view. Any obstruction will cause
shadow and blind sectors. A mast for in-
stance, with a diameter considerably less
than the width of the radiator, will cause
only a small blind sector, but a horizontal
spreader or crosstrees in the same hori-
zontal plane as the scanner unit would be
a much more serious obstruction; you
would need to place the scanner unit well
above or below it.
• It is rarely possible to place the scanner
unit where a completely clear view in all
directions is available. Thus, you should
determine the angular width and relative
bearingof anyshadow sectorsfor theirin-
fluence on the radar at the first opportu-
nity after fitting.
• Ifyou havea radiodirection finderon your
boat, locate its antenna clear of the scan-
ner unit to prevent interference to the di-
rection finder. A separation of more than
two meters is recommended.
• To lessen the chance of picking up elec-
trical interference, avoid where possible
routingthesignalcable nearother onboard
electrical equipment. Also avoid running
the cable in parallel with power cables.
• A magnetic compass will be affected if
placed too close to the scanner unit. Ob-
serve the following compass safe dis-
tances to prevent deviation of a magnetic
compass: Standard compass, 1.00 m,
Steering compass, 0.75 m.
• Do not paint the radiator aperture, to en-
sure proper emission of the radar waves.
• Whenthis radaris tobe installedon larger
vessels, consider the following points:
• Thesignal cablerunbetween thescan-
ner and the display comes in lengths
of 10 m (standard), 15 m, 20 m and 30
m. Whatever length is used it must be
unbroken; namely, no splicing allowed.
• Deposits and fumes from a funnel or
otherexhaust ventcan adverselyaffect
the aerial performance and hot gases
may distort the radiator portion. The
scanner unit must not be mounted
where the temperature is more than
70 C.
As shown in the figure below, the scanner
unitmay beinstalledon thebridge,on acom-
mon mast or on the radar mast.
(a) On bridgh (b) Common mast
(c) Radar mast
Figure 1-1 Scanner unit mounting methods
1.2 Fixing Holes in Mounting
Platform
Referring to the outline drawing on page D-
1, drill five holes in the mounting platform:
four holes of 15 mm diameter for fixing the
scanner unit and one hole of 25-30 mm di-
ameter for the signal cable.

1-2
1.3 Fastening the Radiator to
the Radiator Bracket
For your reference, scanner installation ma-
terials list appears in the packing lists at the
back of this manual.
1. Remove the radiator cap from the radia-
tor bracket.
2. Coat contacting surface between scan-
nerradiator andradiator bracket with an-
ticorrosivesealant asshownin Figure1-2
(scannerunitXN10A) orFigure1-3 (scan-
ner unit XN12A).
Coat hatched area with
anticorrosive sealant. Groove
Radiator
Figure 1-2 Coating the bottom of
scanner radiator for XN10A with
anticorrosive sealant
RADIATOR BRACKET
(top view)
Coat hatched area with
anticorrosive sealant.
10mm
Figure 1-3 Coating scanner bracket
for XN12A with anticorrosive sealant
3. Coat threaded holes on the scanner ra-
diator with anticorrosive sealant.
4. Grease the O-ring and set it to the radia-
tor bracket.
5. Lay the scanner radiator on the radiator
bracket.
6. Coat the radiator fixing bolts (4 pcs.) with
anticorrosivesealant. Fastenthe scanner
radiator to the radiator bracket with the
radiator fixing bolts, flat washers and
spring washers.
Flat washer
Spring washer
Hex head bolt
(M8 x 30)
Radiator bracket
Coat bolts with
anticorrosive
sealant.
Scanner
radiator
O-ring
Coat threaded
holes with anti-
corrosive
sealant.
Figure 1-4 Fastening the radiator bracket to
the scanner unit chassis (shown: XN12A)
1.4 Mounting the Scanner Unit
The scanner unit can be mounted using the
fixing holes on the outside (240 x 240 nm) or
inside (140 x 150 nm) the scanner unit.
Outside fixing holes
Use the hex head bolt ( supplied ) to mount
the scanner unit as below.
1 . Lay the corrosion-proof rubber mat ( sup-
plied) on the mounting platform.
Ground
terminal
Rubber
mat
Bow mark
Figure 1-5 Location of rubber mat

1-3
2. Laythe scanneruniton themountingplat-
form, orienting it as shown in Figure 1-6.
STERN BOW
Figure 1-6 Scanner unit (Shown: XN12A)
CAUTION
Do not lift the scanner unit by the
radiator; lift it by the housing.
The radiator may be damaged.
3. Insert four hex bolts and seal washers
from the top of the scanner housing. In-
sert the seal washers with the larger di-
ameter next to the bolt heads. Be sure
thesealwasher,not otherwashers,isnext
to bolt head.
Hex bolt
Seal washer
Flat washer
Spring washer
Nut
Figure 1-7 Fixing the scanner unit chassis
4. Pass flat washers, spring washers and
nuts onto hex bolts. Fasten by tightening
nuts. Do not fasten by tightening the hex
bolts; seal washers may be damaged.
Scanner
unit
Mounting
platform
Silicone
sealant
Flat washer
Rubber mat
Seal washer
Figure 1-8 How to fasten scanner unit to
mounting platform
5. Coat flat washers, spring washers, nuts
and exposed parts of bolts with anticor-
rosive sealant.
6. Prepareground pointinmountingplatform
(within 300 mm of ground terminal on
scanner unit) using M6 x 25 bolt, nut and
flat washer.
7. Runthe groundwire (RW-4747, 370mm)
between the ground terminal and ground
point.
8. Coat ground terminal and ground point
with silicone sealant as shown in Figure
1-9.
Ground
terminal
Hex bolt
Flat washer
Spring washer
Flat washer
Hex nut
Silicone
sealant
Hex nut
Weld here.
Silicone
sealant
Ground
wire
Scanner
unit
OR
Flat washer
Spring washer
Ground
wire
GROUND
POINT
Hex nut
GROUND
TERMINAL
Figure 1-9 How to coat ground point and
ground terminal with silicone sealant

1-4
Fixing holes inside szcanner unit
Thismethod requires removalof the RFunit
in the scanner unit to access inside fixing
holes. Use hex head bolts, flat washers,
spring washers and nuts (local supply) to
mount the scanner unit, confirming lengh of
bolts.
1. Loosefourscannerbolts toopen thescan-
ner unit. Refer to Figure 11 for location.
RFunit
Hex head bolt
M10X20
SUS 4pcs.
Hex head bolt
M8X25
SUS 2pcs.
Spring Washer
M10 SUS
4 pcs.
Cover
Pan head screw
M3X8 4pcs.
Upper chassis
Square bushing
Lower chassis
Figure 10 Scanner unit chassis, upper
chassis separated
2. Unplugconnectorconnected betweenup-
per and lower chassis.
3. Separate upper chassis from lower chas-
sis by removing two hex head bolts.
4. Remove cover by unfastening four pan
head screws.
5. Remove connector from RF unit .
6. Remove RF unit by unfastening four hex
head bolts.
7. Lay the corrosion-proof rubber mat (sup-
plied) on the mounting platform.
8. Fasten the lower chassis to the mounting
platform with hex head bolts, spring
washers,flatwashers andnuts(local sup-
ply), andthen coatflat washers,nuts and
exposed parts of bolts with anticorrosive
sealant. Cut a slit in rubber bushing and
insert bolt into bushing. Do not use seal
washers.
9. Reassemble RF unit, cover and upper
chassis.
10. Set four knob caps (supplied) into
outside fixing holes.
11. Do steps 6-8 in “Outside fixing holes”.
1.5 Display Unit Mounting
Mounting considerations
When selecting a mounting location for the
displayunit keepin mind thefollowing points:
• Provide adequate space behind and
around the unit to permit circulation of air
and to provide convenient access to the
rear connection.
• Even though the picture is quite legible
even in bright sunlight, keep the display
unitoutof directsunlightor at leastshaded
because of heat that can build up inside
the cabinet.
• Locatethe display unit in aposition where
you can view and operate it conveniently
but where there is no danger of salt or
fresh water spray or immersion.
• The orientation of the display unit should
beso the radarscreen isviewed while the
operator is facing in the direction of the
bow. This makes determination of your
position much easier.
• Make sure you allow enough clearance
both to get to the connectors behind the
unit and to allow you to get your hands in
on both sides to loosen or tighten the
mounting knobs. Make sure you leave at
leasta foot orsoof “serviceloop”of cables
behind the unit so it can be pulled forward
for servicing or easy removal of the con-
nectors.
• Thecompasssafe distanceof0.75 meters
(standardcompass)and0.6 meters(steer-
ing compass) should be observed to pre-
vent deviation of the magnetic compass.
• Even though the display unit meets wa-
terproofstandard IPX-5,the connectionof
external buzzer, radar plotter and/or re-
mote display can affect waterproofness.
Watertight integritycannot beguaranteed.
When these modification has been done,
the display unit should not be mounted
where exposed.
Mounting
The display unit is designed to be mounted
on a tabletop or bulkhead.
1. Using the hanger as a template, mark
screw locations in the mounting location.
2. Fix the hanger to the mounting location
with five M6 tapping screws (supplied).
3. Fit the knob bolts to the display unit. In-
stallthe displayunitin thehanger.Tighten
the knob bolts securely.

2-1
2.1 Connecting the Signal
Cable
Only the signal cable runs from the display
unit to the scanner unit. In order to minimize
the chance of picking up electrical interfer-
ence, avoid where possible routing the sig-
nal cable near other onboard electrical
equipment. Also, avoid running the cable in
parallel with power cables. Pass the cable
throughtheholeand applysealingcompound
around the hole for waterproofing.
1. Openthe scannercover bylooseningtwo
screws, and then fix the stay.
Stay
Cable gland
Fixing screw
Figure 2-1 Scanner unit chassis,
cover opened
2. Fabricate the signal cable as shown be-
low.
Figure 2-2 Fabrication of signal cable
3. Unfastenthe cableglandassembly(plate,
gasket, flat washer).
4. Pass the signal cable w/connector
through the bottom of the scanner unit
chassis.Pass thecablethrough thegland
assembly as shown below.
Figure 2-3 Passing the signal cable through
the cable gland assembly
5. Fasten the crimp-on lug on the shield to
one of the fixing bolts of the cable gland
assembly.
6. Position the signal cable so that no more
than 4 cm of the sheath is exposed as
shown in the figure below. Tighten fixing
bolts on the cable gland assembly.
Figure 2-4 How to fix signal
cable in cable gland
2. CONNECTIONS

2-2
7. Unfasten four screws shown in the figure
below.
Four screws
Figure 2-5 Scanner unit chassis,
cover opened
8. Pass the signal cable through the cable
protector.
Cable
protector
Figure 2-6 Scanner unit chassis,
cover opened
9. Connect the signal cable to the RTB
Board (03P9249), referring to the inter-
connectiondiagram andthe figurebelow.
Note that connector VH2P is not used.
10.Attach threeEMIcores tothe signalcable
as shown below.
Route cable along here.
Lead in
cable here.
J821 VH9P
J824 NH13P
J823 VH4P
EMI core
RFC-13 Clamp
Figure 2-7 Scanner unit chassis,
cover opened
11.Fix the signal cable with the cable clamp.
12.Release the stay and close the cover.
Loosely fasten the cover fixing screws;
you will have to make some adjustments
inside after completion of wiring.
2.2 Display Unit Connections
CAUTION
Ground the equipment to prevent
mutual interference.
Power cable connector
Ground terminal
External equipment
connector
Signal cable connector
(DJ-1, waterproof)
Left: HDG connector
Middle: NMEA connector (for NAV)
Right: NMEA connector (for E/S)
(For Remote Display,
External Alarm Buzzer
OP03-21 and Radar
Plotter, RP-110)
Figure 2-8 Connection on the display unit

2-3
Connection procedure
1. Connect the power cable to the power
cableconnector onthe rearof the display
unit.
2. Connectthe signalcableto connectorDJ-
1 on the rear of the display unit.
3. Runa groundwire (localsupply)between
theground terminalon the rearof thedis-
play unit and the ship’s superstructure.
2.3 Connection of External
Equipment
Navigation aid, video sounder
connection
If your navigation aid can output data in IEC
61162 (NMEA 0183) format, your vessel’s
position in latitude and longitude, the range
and bearing to waypoint, speed and course
may be input to this radar, and be seen on
the screen.
Further if your video sounder can output
depthdatain IEC61162(NMEA0183)format,
depth can be displayed on the radar screen.
You will need an NMEAcable. The following
cables are optionally available.
epyT.onedoCskrameR
050-2100FPS6A-JM424-431-000)m5(P6-P6
001-2100FPS6A-JM718-331-000)m01(P6-P6
050-3000FPS6A-JM306-711-000)m5(rotcennoc/w
001-9000FPS6A-JM632-521-000)m01(rotcennoc/w
Thisradarcan outputNAV datareceivedfrom
a navaid to an echosounder.
SPU9211 INT9213
1932 MARK2/42 MARK2
Navaid
Echo-
sounder
J1354
J1352 (NMEA)
(TLL)
Figure 2-9 Data flow
Heading sensor connection
Heading signal can be connected to the
“HDG”connector. You will need a heading
sensor cable. The following cables are op-
tionally available.
epyT.onedoCskrameR
001-7000FPS6A-JM732-521-000)m01(P6-P6
001-9000FPS6A-JM632-521-000)m01(rotcennoc/w
050-3000FPS6A-JM306-711-000)m5(rotcennoc/w
Input/Output Data List
ledoM rotcennoC emaN ataDniPtuO/nI
2M165VCF1J)5.1(3814tuO/nI
L185VCFAEMN)0.2/5.1(3816tuO/nI
L285VCFAEMN)0.2/5.1(3816tuO/nI
192VCFAEMN)0.2/5.1(3816tuO/nI
292VCFAEMN)0.2/5.1(3816tuO/nI
866VCFAEMN)5.1(3814tuO/nI
L006VCFAEMN)0.2/5.1(3816tuO/nI
0181PGTUO/NI)0.2/5.1(3816tuO/nI
2M0013PGTUO/NI)5.1(3816tuO/nI
2M0008PGAEMN)0.2/5.1(3814tuO/nI
2M0008SPAEMN)0.2/5.1(3814tuO/nI
08PG1ATAD)0.2/5.1(3816tuO/nI
08PG2ATAD)0.2/5.1(3816tuO/nI
C0161PGAEMN)0.2/5.1(3816tuO/nI
FC0161PGAEMN)0.2/5.1(3816tuO/nI
Note:All plotterslisted inthetable abovecan
receive TLL data (radar target position).

2-4
2.4 Exchange of Fuse for
24/32V Power Supply
The power cable comes with a 10A fuse in
itsthe fuseits holder.This fuse isfor usewith
a 12V DC power supply. For 24V/32V DC
power supply, replace the fuse with the 5A
fuse(supplied) andattach5A label (supplied)
to fuse holder.
CAUTION
Use the proper fuse.
Use of an improper fuse can damage the
equipment and void the warranty.
2.5 Checking the Installation
After completing the installation, it is a good
idea to recheck it to be sure all steps were
correctly done. Use the table below to check
the installation.
❑The signal cable is securely retained
againstthe mastormounting platformand
isfree ofinterferencefromrunning rigging.
❑The cable gland or entry on the deck, if
provided, is waterproofed.
❑The power connections to the battery are
of correct polarity.
❑The plugs at the rear of the display unit
are tightly fastened.
❑The fuse in the power cable is 10A (12V)
or 5A (24V/32V DC).

3-1
3. ADJUSTMENT
This section covers adjustment of the radar
after installation. You will need to
• adjust tune/video amplifier level
• enter antenna height
• align heading
• adjust sweep timing
• adjust main bang suppression
• select STC curve
• set a dead sector, and
• confirm magnetron heater voltage.
These adjustments are done through the in-
stallation setup menu.
3.1 Preparation
Most adjustments and initial settings may be
completed on the Installation Setup menu,
and you can display this menu as follows:
1. Turn off the radar. While pressing and
holding down the [GAIN] control (at least
three seconds), press the [POWER] key.
2. Press the [MENU] key, select “OTHERS”
by using the omnipad, and press [ACQ/
ENTER] key.
3. Select “24. Installation Setup”.
4. Press the [ACQ/ENTER] key to open the
Installation Setup menu.
1. Nav Talker
2 . Depth Unit
3 . Temp Unit
4 . Hdg Sensor
5 . Key Beep
6 . Ant on Tx
7 . Dead Sector
8 . Tuning/Video Auto Adjustment
9 . Heading Alignment
10. Sweep Timing Adjustment
11. MBS Adjustment
12. Ant Height
13. STC Curve
14. Ope Mode
15. Hours in Use
16. Tx Hours
Low Mid High
GPS
fa
ßF
Gyro
On
Stop
Std
Slave
All
m
ßC
Magnet
Off
Rotate
180ß~180ß
Sharp
Master
000001.5H
000000.0H
Gntl
LC
ft
[ Installation Setup ]
Select item by omnipad
and press ENTER key.
Figure 3-1 Installation Setup menu
3.2 Adjusting Tuning/Video
Do the following to automatically adjust tun-
ing and video amplifier level input.
1. Press the [STBY/TX] key to transmit.
WARNING
Before transmitting the radar make sure
no one is near the scanner unit, to pre-
vent the potential risk of being struck
by the rotating scanner and exposure
to RF radiation hazard.
2. Onthe InstallationSetup menu,select “8.
Tune/Video Adjustment”and press the
[ACQ/ENTER] key.
3. The unit automatically adjusts tuning and
video, displaying the following message.
[ Tune/Video Auto Adjustment ]
Now under correction.
Return to installation setup
menu after the correction.
Figure 3-2 Tune/video auto
adjustment message
4. When adjustment is completed, the mes-
sage disappears.
3.3 Entering Antenna Height
The STC curve changes with respect to an-
tenna height above the waterline. Enter an-
tenna height above the waterline to optimize
the STC curve.
1. Select “12. Ant Height”from the Installa-
tionSetup menuand pressthe [ACQ/EN-
TER] key.
2. Operate the omnipad to select antenna
height above the waterline; Low (3 m or
less), Mid (3 to 6 m) or High (6 to 10 m).
3. Press the [ACQ/ENTER] key.

3-2
3.4 Aligning Heading
(Adjustment sector: 0~359.90)
You have mounted the scanner unit facing
straight ahead in the direction of the bow.
Therefore, a small but conspicuous target
dead ahead visually should appear on the
heading marker (zero degrees).
In practice, you will probably observe some
small bearing error on the display because
of the difficulty in achieving accurate initial
positioningof the scanner unit.The following
adjustment will compensate for this error.
1. Identifya suitabletarget(forexample,ship
orbuoy) atarange between0.125 to0.25
nautical miles, preferably near the head-
ing marker. To lessen error, keep echoes
in the outer half of the picture by chang-
ingthe range.Also, be surethe zoomand
off center functions are off.
2. Select “9. Heading Alignment” from the
Installation Setup menu and press the
[ACQ/ENTER] key. The following mes-
sage appears:
[Heading Alignment]
Set EBL1 to center of target
dead ahead and press ENTER.
Correction 0.0°
<Press MENU for inst setup>
Figure 3-3 Heading alignment message
3. Operate the omnipad to bisect target se-
lected at step 1 with the heading marker.
4. Press the [ACQ/ENTER] key.
5. As a final test, move the boat towards a
small buoy and confirm that the buoy
shows up dead ahead on the radar when
it is visually dead ahead.
3.5 Adjusting Sweep Timing
(Adjustment range: 0.000~4.266 nm)
This adjustment ensures proper radar per-
formance, especially on short ranges. The
radarmeasures thetime requiredfor atrans-
mitted echo to travel to the target and return
tothe source.The receivedecho appears on
the display based on this time. Thus, at the
instant the transmitter is fired, the sweep
should start from the center of the display
(sometimes called sweep origin).
A trigger pulse generated in the display unit
goes to the scanner unit through the signal
cable to trigger the transmitter (magnetron).
The time taken by the signal to travel up to
thescanner unitvaries, depending largelyon
the length of the signal cable. During this pe-
riod the display unit should wait before start-
ing the sweep. When the display unit is not
adjustedcorrectly, theechoes fromastraight
local object (for example, a harbor wall or
straight pier) will not appear with straight
edges – they will be seen as “pushed out” or
“pulled in” near the picture center.The range
of objects will also be incorrectly shown.
(1) Correct (2) Target pushed
inward (3) Target pushed outward
Figure 3-4 Examples of improper and
correct sweep timing
1. Transmit on the shortest range and con-
firm that the [GAIN] and [A/C SEA] con-
trols are properly adjusted.
2. Visually select a target which forms a
straight line (for example, harbor wall,
straight pier).
3. Select “10. Sweep Timing Adjustment”
from the Installation Setup menu and
press the [ACQ/ENTER] key. The follow-
ing message appears:

3-3
[ Sweep Timing Adjustment ]
Use omnipad to straighten
target and press ENTER key.
Correction 0.000 nm
<Press MENU for inst setup>
Figure 3-5 Sweep timing adjustment
message
4. Operatethe trackballtostraighten thetar-
get selected at step 2, and then press the
[ACQ/ENTER] key.
3.6 Adjusting MBS
(Adjustment range: 0.00~0.25)
Mainbang, alarge filledcircle which appears
at the display center on short ranges, can be
suppressed as follows:
1. Transmiton longrangeabout 10minutes.
2. Adjust the gain to show a small amount
of noise on the display.
3. Change to the 0.125 nautical mile range
and adjust the [A/C SEA] control.
4. Select “11. MBSAdjustment” from the In-
stallation Setup menu and press the
[ACQ/ENTER] key. The following mes-
sage appears:
[MBS Adjustment]
Set value by T-ball
and press ENTER key.
Correction 000
<Press MENU for inst setup>
Figure 3-6 MBS adjustment message
5. Operate the trackball to suppress main
bang (adjustment range: 000 to 025).
6. Press the [ACQ/ENTER] key.
3.7 Selecting STC Curve
The STC curve changes with respect to the
antenna height above the waterline.The de-
fault STC curve can be maintained in most
cases. If necessary the STC curve can be
changed as follows:
1. Select “13. STC Curve” from the Installa-
tionSetup menuand pressthe [ACQ/EN-
TER] key.
2. Select STC curve desired;
Sharp: The effective range of the [A/C
SEA] control is relatively short.
Std: Between Sharp and Gentle.
Gntl (Gentle): The effective range of
the [A/C SEA] control is relatively long.
3. Press the [ACQ/ENTER] key.
3.8 Setting a Dead Sector
When the scanner is installed at a close dis-
tance in front of the wheelhouse, the radar
shouldbe setnot totransmit within that area,
toprevent microwavehazard.The deadsec-
tor area graphic can be turned on/off on the
OTHERS menu.
1. Select “7. Dead Sector” from the Installa-
tionSetup menuand pressthe [ACQ/EN-
TER] key.
2. Operate the omnipad to enter starting
point of sector (in figures).
3. Press the [ACQ/ENTER] key.
4. Operatethe omnipadtoenterendingpoint
of sector (in figures, Max: 270°).
5. Press the [ACQ/ENTER] key.
Note: Thissetting shouldbe doneafter other
adjustment are finished.
Dead
sector
Figure 3-7 Dead sector

3-4
3.9 Checking Magnetron Heater
Voltage
Magnetron heater voltage is formed on the
MD Board of the scanner unit, and is
preadjusted at the factory for use with any
length of signal cable. Therefore no adjust-
mentis required.However, checkmagnetron
heater voltage as follows:
1. Turn on the radar and leave it in stand-
by.
2. Open the scanner cover.
3. Unfasten two screws to remove the RF
section cover.
DANGER
ELECTRICAL SHOCK HAZARD
This check is done with the
power on —DO NOT touch
the magnetron.
Magnetron
U
n
f
asten two
screws.
Figure 3-8 Scanner unit, cover opened
4. Connect a multimeter, set to 10 VDC
range, between test point J825#4 and
J825#6(GND) on the RTB Board
(03P9249).
Measure voltage
at this connector
(J825).
Figure 3-9 Scanner unit, cover removed
5. Confirm that the meter reads 7.5 V ±0.1 V.
6. Close the scanner cover and tighten the
cover fixing screws.

4-1
4. INSTALLATION OF ARP-10 (OPTION)
NOTICE
This option is not available
with 48 rpm scanner unit.
4.1 Necessary Parts
emaNepyT.oNedoCytQ
draoB01-PRA7009P81039-674-8001
recapS02-QS056-108-0004
rehsaWgnirpSW1915C3M402-468-0004
wercSdaeHnaPW0072C8x3M404-188-0006
wercSdaeHnaP *rehsaw/w 8x3M 01MRWS 477-508-0003
4.2 Mounting
1. Turn off the power. Remove the cover
from the display unit as follows:
1Unfastenfourbindingscrews(M4x10).
2Unfastensix bindingscrews (M3x10).
3Remove three rubber covers to unfas-
ten three hex nuts.
4Loosen two hex nuts.
1
1
1
1
2
2
3
4
Figure 4-1 Display unit, rear view
2. Fasten the ARP-10 Board to the right-
handchassis ofthe display unit,using the
pan head spacers, screws, and washers
(supplied) as follows.
(1)Attach three spacers.
(2)Attach the P107 connector from the
ARP-10 Board to J107 connector on
the SPU Board.
(3)Faster the ARP-10 Board to the chas-
sis with three pan head screws and
springs washers.
$
$
Spacer
SQ-20 3 pcs.
Spring Washer
M3 3 pcs.
Pan Head
Screw
M3 x 8 3 pcs.
J107
P107
SPU Board
SPU9211
ARP-10 Board
18P9007
Front
Note: Remaininghardwaremaybediscarded.
Figure 4-2 How to mount the
ARP-10 Board
4.3 Adjustments
Input signal
1. Connect the gyrocompass. Turn on the
radar and transmit.
2. Press the [MENU] key and select the
OTHERS menu
3. Select “23. Self Test”and press the[ACQ/
ENTER]key.Confirm thattheARP-10 test
results show OK for SPEED, COURSE,
TRIGGER< BP and HP.
Video signal
Confirmthe followingon theARP-10 testdis-
play:
• Video is “OK.”
• Adjust the GAIN,A/C and A/C RAIN con-
trols so FE-DATA1 and FE-DATA2 indi-
cations on the ARP-10 TEST show less
than 1,000. Also, raise/lower the gain
while watching the FE-DATA1 and FE-
DATA2 indications. Confirm that the FE-
DATA1 and FE-DATA2 indications rise/
lower according to GAIN control adjust-
ment.
*Not used.