Furuno 1932 MARK-2 User Manual

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Page 1

Page 2

(

9-52, Ashihara-cho, Nishinomiya, Japan

Telephone: 0798-65-2111 Telefax: 0798-65-4200

Printed in Japan

Your Local Agent/Dealer

FIRST EDITION : AUG. 1998 D : SEP. 4, 2001

PUB. No. IME-34620-D

YOSH)

MODEL-1932/1942 MARK-2

Page 3

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/m 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

1932 MK-2

1942 MK-2

Radiator

type

XN10A

XN12A

Distance to

100 W/m

point

Worst case 0.2 m

Nil

exist are given in the table

Distance to

10 W/m

point

Worst case 3.0 m

Worst case 2.5 m

Page 4

CAUTION

WARNING

Do not open the equipment unless totally familiar with electrical circuits and service manual.

ELECTRICAL

SHOCK

HAZARD

Construct a suitable service platform from which to install the scanner unit.

Serious injury or death can result if someone falls from the radar scanner mast.

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.

Turn off the power at the mains switchboard 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.

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.

CAUTION

Ground the equipment to prevent electrical shock and mutual interference.

Observe the following compass safe distances to prevent deviation of a magnetic compass:

Standard Steering compass compas

Display unit

Scanner unit

0.75 m 0.60 m

1.00 m 0.80 m

HIGH TENSION WARNING

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

Page 5

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/V ideo......................................................................................3-1

3.3 Entering Antenna Height ...................................................................................3-1

3.4 Aligning Heading ...............................................................................................3-2

3.5 Adjusting Sweep T iming ....................................................................................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

iii

Page 6

SYSTEM CONFIGURATION

Scanner Unit

MODEL 1932 MARK-2 XN10A-RSB-0070-064 (24 rpm) XN10A-RSB-0073-064 (48 rpm)

MODEL 1942 MARK-2 XN12A-RSB-0070-059 (24 rpm) XN12A-RSB-0073-059 (48 rpm)

Navigation device

Video Sounder

IEC 61162* (In/Out)

Display Unit

RDP-118

Radar Plotter

RP-110

Remote Display FMD-811/1800

Gyrocompass

*Equivalent to NMEA 0183

Gyro Converter

AD-100

Integrated Heading

Sensor PG-1000

: Option : Local Supply

Auto Plotter

ARP-10

(24 rpm only)

12 VDC: 10A 24/32 VDC: 5A

12/24/32 VDC

External Alarm Buzzer OP03-21

Rectifier RU-3423

115/230 VAC

Note: Even though the display unit meets waterproof standard IPX-5, the connection of external buzzer, radar plotter and/or remote display can af fect waterproofness. W atertight integrity 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 Heading (Magnetic): HDM>HDG *1>HDT *1>VHW>VHW 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

*1: calculate by magnetic drift.

Output data

NMEA0183 (Ver.1.5/2.0), RS-422 TLL(target data) and RSD

Page 7

Standard Supply

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EQUIPMENT LISTS

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seirosseccA00460-30PF278-680-000tes101840-30PF,01460-30PF

straPerapS00221-30PS569-680-000tes1

Optional Supply

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460-0700-BSR-A01NX— 460-3700-BSR-A01NX— mpr84,2M2391roF 950-0700-BSR-A21NX— 950-3700-BSR-A21NX— mpr84,2M2491roF

00391-30PC419-680-000

01391-30PC519-680-000

02391-30PC619-680-000

03391-30PC719-680-000

tceleS

eno

tceleS

eno

tceleS

eno

mpr42,2M2391roF

mpr42,2M2491roF

,elbacrewop,10481-30PC

elbaclangism01

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elbaclangism51

,elbacrewop,10481-30PC

elbaclangism02

,elbacrewop,10481-30PC

elbaclangism03

*rezzuBlanretxE12-30PO790-030-000

reifitceR3243-UR344-030-000

001-7000FPS6A-JM732-521-000

050-2100FPS6A-JM424-431-000

ssorc

.yssAelbaC

001-2100FPS6A-JM718-331-000

ssorc

001-9000FPS6A-JM632-521-000

elbaClangiS050-3000FPS6A-JM306-711-000dneenotarotcennocP6/w,m5

tiKtnuoMhsulF541-30PO060-674-800tinuyalpsidroF

rettolPotuA01-PRA258-680-000.rennacsmpr42htiwelbaliavA

*rettolPradaR011-PR-

.yssAelbaC500-6000FPL42B-JM834-041-000rotcennocretrevnocelbaC

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Page 8

1. MOUNTING

1.1 Mounting Methods for Scanner Unit

• The scanner unit is generally installed either on top of the wheelhouse or on the radar mast on a suitable platform. Locate the scanner unit where there is a good allround view. Any obstruction will cause shadow and blind sectors. A mast for instance, 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 horizontal 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 bearing of any shadow sectors for their influence on the radar at the first opportunity after fitting.

• Do not paint the radiator aperture, to ensure proper emission of the radar waves.

• When this radar is to be installed on larger vessels, consider the following points:

• The signal cable run between the scanner 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 other exhaust vent can adversely affect 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 unit may be installed on the bridge, on a common mast or on the radar mast.

• If you have a radio direction finder on your boat, locate its antenna clear of the scanner unit to prevent interference to the direction finder. A separation of more than two meters is recommended.

• To lessen the chance of picking up electrical interference, avoid where possible routing the signal cable near other 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. Observe the following compass safe distances to prevent deviation of a magnetic compass: Standard compass, 1.00 m, Steering compass, 0.75 m.

(a) On bridgh

Figure 1-1 Scanner unit mounting methods

(b) Common mast

1.2 Fixing Holes in Mounting Platform

Referring to the outline drawing on page D1, 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 diameter for the signal cable.

1-1

Page 9

1.3 Fastening the Radiator to the Radiator Bracket

For your reference, scanner installation materials list appears in the packing lists at the back of this manual.

1. Remove the radiator cap from the radiator bracket.

2. Coat contacting surface between scanner radiator and radiator bracket with anticorrosive sealant as shown in Figure 1-2 (scanner unit XN10A) or Figure 1-3 (scanner unit XN12A).

Coat hatched area with anticorrosive sealant.

Groove

Radiator

anticorrosive sealant. Fasten the scanner radiator to the radiator bracket with the radiator fixing bolts, flat washers and spring washers.

Scanner radiator

Coat threaded holes with anti-

O-ring

Radiator bracket

Flat washer Spring washer Hex head bolt (M8 x 30)

corrosive sealant.

Coat bolts with anticorrosive sealant.

Figure 1-4 Fastening the radiator bracket to

the scanner unit chassis (shown: XN12A)

Figure 1-2 Coating the bottom of

scanner radiator for XN10A with

anticorrosive sealant

RADIATOR BRACKET

(top view)

10mm

Coat hatched area with anticorrosive sealant.

Figure 1-3 Coating scanner bracket

for XN12A with anticorrosive sealant

3. Coat threaded holes on the scanner radiator with anticorrosive sealant.

4. Grease the O-ring and set it to the radiator bracket.

5. Lay the scanner radiator on the radiator bracket.

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

6. Coat the radiator fixing bolts (4 pcs.) with

1-2

Page 10

2. Lay the scanner unit on the mounting platform, orienting it as shown in Figure 1-6.

BOW

STERN

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.

Seal washer

Scanner

Rubber mat

Flat washer

unit

Mounting platform

Silicone sealant

Figure 1-8 How to fasten scanner unit to

mounting platform

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. Insert the seal washers with the larger diameter next to the bolt heads. Be sure the seal washer , not other washers, is next to bolt head.

5. Coat flat washers, spring washers, nuts and exposed parts of bolts with anticorrosive sealant.

6. Prepare ground point in mounting platform (within 300 mm of ground terminal on scanner unit) using M6 x 25 bolt, nut and flat washer.

7. Run the ground wire (RW-4747, 370 mm) between the ground terminal and ground point.

8. Coat ground terminal and ground point with silicone sealant as shown in Figure 1-9.

Hex bolt

Flat washer

Ground terminal

Ground wire

Silicone sealant

Flat washer

Spring washer

Hex nut

GROUND

POINT

Hex nut

Spring washer

Flat washer

Hex nut

Hex bolt

Seal washer

Flat washer

Spring washer

Nut

Figure 1-7 Fixing the scanner unit chassis

GROUND

TERMINAL

Weld here.

Silicone sealant

Ground wire

Scanner unit

Figure 1-9 How to coat ground point and

ground terminal with silicone sealant

1-3

Page 11

Fixing holes inside szcanner unit

1.5 Display Unit Mounting

This method requires removal of the RF unit 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. Loose four scanner bolts to open the scanner unit. Refer to Figure 11 for location.

Hex head bolt M8X25 SUS 2pcs.

Hex head bolt M10X20 SUS 4pcs.

Spring Washer M10 SUS 4 pcs.

Upper chassis

RFunit

Cover

Square bushing

Lower chassis

Pan head screw M3X8 4pcs.

Figure 10 Scanner unit chassis, upper

chassis separated

2. Unplug connector connected between upper and lower chassis.

3. Separate upper chassis from lower chassis 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 (supplied) on the mounting platform.

8. Fasten the lower chassis to the mounting platform with hex head bolts, spring washers, flat washers and nuts (local supply ), and then coat flat 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”.

1-4

Mounting considerations

When selecting a mounting location for the display unit keep in mind the following 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 unit out of direct sunlight or at least shaded because of heat that can build up inside the cabinet.

• Locate the display unit in a position 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 be so the radar screen is viewed 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 least a foot or so of “service loop” of cables behind the unit so it can be pulled forward for servicing or easy removal of the connectors.

• The compass safe distance of 0.75 meters (standard compass) and 0.6 meters (steering compass) should be observed to prevent deviation of the magnetic compass.

• Even though the display unit meets waterproof standard IPX-5, the connection of external buzzer, radar plotter and/or remote display can affect waterproofness. W atertight integrity cannot be guaranteed. 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-

stall the display unit in the hanger. Tighten the knob bolts securely.

Page 12

2. CONNECTIONS

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 interference, avoid where possible routing the signal cable near other onboard electrical equipment. Also, avoid running the cable in parallel with power cables. Pass the cable through the hole and apply sealing compound around the hole for waterproofing.

1. Open the scanner cover by loosening two screws, and then fix the stay.

Stay

Cable gland

3. Unfasten the cable gland assembly (plate, gasket, flat washer).

4. Pass the signal cable w/connector through the bottom of the scanner unit chassis. Pass the cable through the gland 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 .

Fixing screw

Figure 2-1 Scanner unit chassis,

cover opened

2. Fabricate the signal cable as shown below.

Figure 2-2 Fabrication of signal cable

Figure 2-4 How to fix signal

cable in cable gland

2-1

Page 13

7. Unfasten four screws shown in the figure below.

Four screws

9. Connect the signal cable to the RTB Board (03P9249), referring to the interconnection diagram and the figure below. Note that connector VH2P is not used.

10.Attach three EMI cores to the signal cable as shown below.

J821 VH9P

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

Lead in cable here.

EMI core RFC-13

Route cable along here.

J824 NH13P

J823 VH4P

Clamp

Figure 2-7 Scanner unit chassis,

cover opened

1 1.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

Power cable connector

Signal cable connector (DJ-1, waterproof)

Left: HDG connector Middle: NMEA connector (for NAV) Right: NMEA connector (for E/S)

Figure 2-8 Connection on the display unit

External equipment connector

(For Remote Display, External Alarm Buzzer OP03-21 and Radar Plotter, RP-110)

Ground terminal

CAUTION

Ground the equipment to prevent mutual interference.

2-2

Page 14

Connection procedure

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Heading sensor connection

1. Connect the power cable to the power cable connector on the rear of the display unit.

2. Connect the signal cable to connector DJ1 on the rear of the display unit.

3. Run a ground wire (local supply) between the ground terminal on the rear of the display 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 depth data in IEC61 162 (NMEA 0183) format, depth can be displayed on the radar screen.

You will need an NMEA cable. The following cables are optionally available.

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Heading signal can be connected to the “HDG” connector. You will need a heading sensor cable. The following cables are optionally available.

Input/Output Data List

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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

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Note: All plotters listed in the table above can receive TLL data (radar target position).

This radar can output NA V data received from a navaid to an echosounder.

J1352 (NMEA)

(TLL)

SPU9211

1932 MARK2/42 MARK2

INT9213

J1354

Figure 2-9 Data flow

Navaid

Echosounder

2-3

Page 15

2.4 Exchange of Fuse for 24/32V Power Supply

The power cable comes with a 10A fuse in its the fuse its holder . This fuse is for use with a 12V DC power supply. For 24V/32V DC power supply, replace the fuse with the 5A fuse (supplied) and attach 5A 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

against the mast or mounting platform and is free of interference from running 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).

2-4

Page 16

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 .

3.2 Adjusting Tuning/Video

Do the following to automatically adjust tuning 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 prevent the potential risk of being struck by the rotating scanner and exposure to RF radiation hazard.

2. On the Installation Setup 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.

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.

[ Installation Setup ]

Select item by omnipad

and press ENTER key.

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

All m ßC Magnet

Off

Rotate

180ß~180ß

Low

Sharp Master

000001.5H

000000.0H

GPS fa ßF Gyro

Stop

Mid

Std

Slave

LC ft

High

Gntl

Figure 3-2 Tune/video auto

adjustment message

4. When adjustment is completed, the message disappears.

3.3 Entering Antenna Height

The STC curve changes with respect to antenna height above the waterline. Enter antenna height above the waterline to optimize the STC curve.

1. Select “12. Ant Height” from the Installation Setup menu and press the [ACQ/ENTER] 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.

Figure 3-1 Installation Setup menu

3-1

Page 17

3.4 Aligning Heading

3.5 Adjusting Sweep Timing

(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 positioning of the scanner unit. The following adjustment will compensate for this error.

1. Identify a suitable target (for example, ship or buoy) at a range between 0.125 to 0.25 nautical miles, preferably near the heading marker. To lessen error, keep echoes in the outer half of the picture by changing the range. Also, be sure the zoom and off center functions are off.

2. Select “9. Heading Alignment” from the Installation Setup menu and press the [ACQ/ENTER] key. The following message appears:

[Heading Alignment]

Set EBL1 to center of target

dead ahead and press ENTER.

(Adjustment range: 0.000~4.266 nm)

This adjustment ensures proper radar performance, especially on short ranges. The radar measures the time required for a transmitted echo to travel to the target and return to the source. The received echo 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 the scanner unit varies, depending largely on the length of the signal cable. During this period the display unit should wait before starting the sweep. When the display unit is not adjusted correctly , the echoes from a straight 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.

Correction 0.0°

Figure 3-3 Heading alignment message

3. Operate the omnipad to bisect target selected 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.

(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 confirm that the [GAIN] and [A/C SEA] controls 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 following message appears:

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[ Sweep Timing Adjustment ]

Use omnipad to straighten

target and press ENTER key.

1. Select “13. STC Curve” from the Installation Setup menu and press the [ACQ/ENTER] key.

Correction 0.000 nm

Figure 3-5 Sweep timing adjustment

message

4. Operate the trackball to straighten the target selected at step 2, and then press the [ACQ/ENTER] key.

3.6 Adjusting MBS

(Adjustment range: 0.00~0.25)

Main bang, a large filled circle which appears at the display center on short ranges, can be suppressed as follows:

1. Transmit on long range about 10 minutes.

2. Adjust the gain to show a small amount of noise on the display.

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 distance in front of the wheelhouse, the radar should be set not to transmit within that area, to prevent microwave hazard. The dead sector area graphic can be turned on/off on the OTHERS menu.

1. Select “7. Dead Sector” from the Installa-

tion Setup menu and press the [ACQ/ENTER] key.

3. Change to the 0.125 nautical mile range and adjust the [A/C SEA] control.

4. Select “1 1. MBS Adjustment” from the Installation Setup menu and press the [ACQ/ENTER] key. The following message appears:

[MBS Adjustment]

Set value by T-ball

and press ENTER key.

Correction 000

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 default STC curve can be maintained in most cases. If necessary the STC curve can be changed as follows:

2. Operate the omnipad to enter starting point of sector (in figures).

3. Press the [ACQ/ENTER] key.

4. Operate the omnipad to enter ending point of sector (in figures, Max: 270°).

5. Press the [ACQ/ENTER] key.

Note: This setting should be done after other adjustment are finished.

Dead sector

Figure 3-7 Dead sector

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3.9 Checking Magnetron Heater

Unf

5. Confirm that the meter reads 7.5 V ±0.1 V .

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 adjustment is required. However , check magnetron heater voltage as follows:

1. Turn on the radar and leave it in by.

2. Open the scanner cover.

3. Unfasten two screws to remove the RF section cover.

stand-

DANGER

ELECTRICAL SHOCK HAZARD

This check is done with the power on — DO NOT touch the magnetron.

6. Close the scanner cover and tighten the cover fixing screws.

Magnetron

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

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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

(3)Faster the ARP-10 Board to the chas-

sis with three pan head screws and springs washers.

Front

Spring Washer

Spacer

SQ-20 3 pcs.

Pan Head Screw M3 x 8 3 pcs.

ARP-10 Board

18P9007

M3 3 pcs.

P107

J107

SPU Board

SPU9211

Note: Remaining hardware may be discarded.

*Not used.

4.2 Mounting

1. Turn off the power. Remove the cover from the display unit as follows:

1 Unfasten four binding screws (M4 x 10). 2 Unfasten six binding screws (M3 x 10). 3 Remove three rubber covers to unfas-

ten three hex nuts.

4 Loosen two hex nuts.

Figure 4-1 Display unit, rear view

2. Fasten the ARP-10 Board to the righthand chassis of the 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.

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 T est” and press the [ACQ/ ENTER] key . Confirm that the ARP-10 test results show OK for SPEED, COURSE, TRIGGER< BP and HP.

Video signal

Confirm the following on the ARP-10 test display:

• Video is “OK.”

• Adjust the GAIN, A/C and A/C RAIN controls so FE-DATA1 and FE-DATA2 indications on the ARP-10 TEST show less than 1,000. Also, raise/lower the gain while watching the FE-DATA1 and FEDATA2 indications. Confirm that the FEDATA1 and FE-DATA2 indications rise/ lower according to GAIN control adjustment.

4-1

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