Furuno Marine RADAR F A R User Manual

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TABLE OF CONTENTS

EQUIPMENT LISTS ............................................................................ v

1. MOUNTING

1.1 Radiator Assembling Procedure ......................................................................................1-1

1.2 Mounting Structures ........................................................................................................1-3

1.3 Mounting the Antenna Unit on the Mounting Platform...................................................1-4

1.4 Mounting the Display Unit ..............................................................................................1-8

1.5 Mounting the Separate Type Control Panel .....................................................................1-9

2. CONNECTIONS

2.1 Antenna Unit Connections ...............................................................................................2-1

2.2 Display Unit Connections................................................................................................2-6

2.3 Changing Power Specifications .....................................................................................2-13

2.4 Power Supply Unit.........................................................................................................2-14

3. INITIALIZATION AND ADJUSTMENT

3.1 Menus for Initialization and Adjustment .........................................................................3-1

3.2 Heading Alignment ..........................................................................................................3-2

3.3 Adjusting Sweep Timing .................................................................................................3-2

3.4 Adjusting Video Signal Level ..........................................................................................3-3

3.5 Suppressing Main Bang ...................................................................................................3-4

3.6 Confirming Tuning ..........................................................................................................3-4

3.7 Confirming Magnetron Heater Voltage ...........................................................................3-5

3.8 Initial Settings Menus ......................................................................................................3-6

3.9 Setting the Function Keys................................................................................................3-8

3.10 Default of InitialSetting Menus ................................................................................... 3-11

3.11 How to adjust ARP board ............................................................................................3-12

3.12 Installation Check List .................................................................................................3-14

4. INSTALLATION OF GYRO CONVERTER GC-8 (option)

4.1 General Procedure for Installing and Setting up the GYRO CONVERTER Board ........4-1

4.2 Connection of External Power Supply ............................................................................4-3

4.3 Confirming Gyrocompass Specifications ........................................................................4-3

4.4 Changing Settings on the GYRO CONVERTER Board .................................................4-4

4.5 Setting the Bearing on the Radar Display........................................................................4-8

iii

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LIST OF INSTALLATION MATERIALS, ACCESSORIES AND

SPARE PARTS

LIST OF INSTALLATION MATERIALS, ACCESSORIES AND SPARE PARTS

......................................................... L-1 to L-13

OUTLINE DRAWINGS

OUTLINE DRAWINGS........................................................................................... D-1 to D-6

SCHEMATIC DIAGRAMS

SCHEMATIC DIAGRAMS .......................................................................................S-1 to S-6

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EQUIPMENT LISTS

Complete set

No. Name

Type

Qty Remarks

Scanner unit

SN-36AF

SN-30AF

RSB-0026

RSB-0031

RSB-0088

RSB-0089

RSB-0090

RDP-115

Antenna radiator

Scanner unit

Scanner unit for HSC

Display unit

Accessories

Pedestal mount type

Tabletop type

FP03-05710

FP03-05730

1 set For built-in control unit, FP-03-05701,

FP-03-05704, FP-03-05705, 03-133-

1811

For separate control unit, FP-03-05701,

FP-03-05703, FP-03-05704, FP-03-

05705, 03-133-1811

Installation materials

Signal cable

CP03-14603

1 set For scanner unit

1 set For display unit

1 set For power supply unit

CP03-14602

CP03-13907

RW-6895 *15m*

RW-6895 *20m*

RW-6895 *30m*

RW-6895 *60m*

SP03-11600

Spare parts

1 set SP03-10320, SP03-11301

Power Supply Unit

PSU-004-70-23-S

PSU-004-80-10-S

3ø, 200/200 VAC, 2.3A

3ø, 380/440 VAC, 1.0A

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Optional equipment

No. Name

Type

Code No.

008-423-420

008-452-400

008-459-810

008-459-820

008-459-760

008-459-890

Remarks

Hand grips

OP03-70

OP03-133

FP03-0574

OP03-126

OP03-127

OP03-128

For display unit

M card fixing plate

Hood

Display unit cover

Tabletop w/built-in control unit

Tabletop w/separate control unit

Pedestal mount

Display unit

conversion kit

OP03-129-1 008-459-830

OP03-129-2 008-452-410

OP03-130-1 008-459-900

OP03-130-2 008-452-430

Converts from tabletop type/built-in

control unit to pedestal mount

Converts from tabletop type/separate

control unit to pedestal mount

OP03-131

008-459-910

Converts from pedestal mount to tabletop

type/built-in control unit

OP03-132-1 008-459-920

OP03-132-2 008-452-450

Converts from pedestal mount to tabletop

type/separate control unit

Control panel

fixing plate

OP03-134

008-461-340

For fastening separate type control unit to

a tabletop

Video plotter

Gyro converter

Interswitch

RP-25

GC-8-2

RJ-7

008-446-520

000-030-097

With installation materials

1 m, with connector

10 External buzzer

OP03-21

PM-50

11 Performance

monitor

12 Range unit

conversion kit

OP03-110-1 008-446-610

OP03-110-2 008-452-200

To km

To sm

13 Range unit

conversion kit

14 Color display unit

15 Slave display unit

16 Transformer unit

17 Transformer unit

18 Interswitch

CD-141

FMD-8000

RU-1758

RU-1803

RJ-8

000-030-416

000-030-420

Converts 220 VAC to 100 VAC

Converts 440 VAC to 100 VAC

19 Interface unit

IF-2300

000-002-422

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- D P Y 2 C 5 ( 0 Y V ) - 1 . 2 5

A C , 1 1 1 5 / 2 3 0 V

- D P Y 2 C 5 ( 0 Y V ) - 3 . 5

F o r d i s p l a y u n i t

- T P Y C 6 6 ( Y 0 V ) - 3 . 5

- T P Y C 2 5 ( Y 0 V ) - 3 . 5

F o r s c a n n e r u n i t

vii

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1.3 Mounting the Antenna Unit on the Mounting Platform

CAUTION

1) Work at high places is dangerous. Always wear a

hard hat and safety belt when working on the

antenna unit mast.

2) Both a service platform and steps to the service

platform must be mounted to provide safe access

for service personnel. Improperly installed

platforms present a hazard to service personnel.

Siting considerations

CAUTION

A magnetic compass will be affected if

placed too close to the antenna unit.

Below are the minimum safe distances

for magnetic cpmpassis.

Steering

Compass

Antenna

Standard

Compass

RSB-0026

RSB-0031

3.6 m

4.8 m

RSB-0088

RSB-0089

RSB-0090

Consider the following points when selecting

a mounting location for the antenna unit.

¥ No funnel, mast or derrick should be within

the vertical, beam width of the antenna in

the bow direction, especially zero degrees

–5°, to prevent blind sectors and false

echoes on the radar picture.

¥ Fumes from the funnel or other exhaust

vent can adversely affect performance and

hot gas can distort the radiator. The antenna

unit must not be mouonted in a place where

the temperture may exceed 70°C.

¥ Leave sufficient space around the unit for

maintenance ans servicing. See the

antenna unit outline drawing for recommen-

ded maintenance space.

¥ Locate the unit well away from the aerial of

a radiotelephone or navigation receiver to

prevent interference. Separation of more

than two meters is recommended.

1 - 4

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1.4 Mounting the Display Unit

The display unit is designed to be mounted on a tabletop or a pedestal (option).

Before mounting the display unit

If Gyro Converter GC-8 (option) is to be used, install and setup the GYRO PROCESSOR

Board before mounting the display unit, because of the difficulty involved if done after the unit

is mounted, Insstrutions for installtion and setup are in Chapter 4.

Siting considerations

Lpcate the display unit on the bridge in a place where it can be viewed and operated conve-

niently. In addition, consider the points noted in the figure which follows.

CAUTION

A magnetic compass will be affected if

placed too close to the display unit.

The minimum compass safe distances

for magnetic compasses are

standard compass: 2.7 m

steering compass: 1.8 m

Consider the points mentioned below

when selecting a mounting location for the

display unit.

¥ The orientation of the display unit should

be so the operator views the screen while

facing the bow. This makes determination

of position much easier.

¥ The location should be free of water spray.

¥ The daylight bright type radar display

sunlight. However, locate the unit out of

direct sunlight and away from heat sources

because of heat that can build up inside

the cabinet.

¥ The mounting location should be deter-

mined consiering the lengt of the signal

cable between the antenna unit and the

display unit. (The signal cable comes in

lengths of 15, 20 or 30 meters; maximum

100 meters.)

¥ Leave sufficient space around the unit for

maintenance and servcing. See the display

unit ouline drawing forrecommended

maintenance space.

1 - 8

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2. CONNECTIONS

2.1 Antenna Unit Connections

Two cables run between the display unit and the antenna unit, the signalcable and the antenna

cable.

Fabricating antenna cable 660V-MPYCY-12/250V-MPYCY-12 (JIS cable)

1. Shorten the cable making the length from the cable gland to the cable end inside the scanner

unit 450 mm. Remove the vinyl sheath of the cable by 450 mm; the armor by 440 mm.

Armor

440 mm

Conductors

450 mm

Armor

Core

φ = 1.25 mm²

Vinyl sheath

Figure 2-1 Fabrication of multicore cable 660V-MPYCY-12/250V-MPYCY-12

2. Turn off the ANT MOTOR SW on the scanner unit.

ANT MOTOR SW

Multicore cable

Signal cable

(250V-MPYCY-12 or

(RW-6895)

660V-MPYCY-12)

Figure 2-2 Scanner unit, bow view

3. Open the left side cover on the scanner unit with the hex wrench (Supplied).

4. Unfasten the cable gland for the multicore cable and remove the gasket and flat washers.

5. As shown in Figure 2-3, slide the clamping gland, flat washers and gasket on the multicore

cable.

2 - 1

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6. Fold back armor by 5 mm and pass it through the two flat washers as shown in Figure 2-3.

Gasket

Armor (folded back)

Seal with putty

after tightening.

Vinyl sheath

Clamping gland

Flat

Cable gland

washer

Flat

washer

Flat

washer

Figure 2-3 Passing clamping gland, washers and gasket on the multicore cable

7. Shorten conductors considering their locations on the terminal board STB-1.

STB-1

RTB-801

Figure 2-4 Scanner unit, port side view

8. Confirm that armor is grounded between two flat washers.

9. Remove the sheath of each conductor by 6 mm. Fix crimp-on lugs (FV1.25-4, blue, ø4) to

each conductor. Make sure each connection is secure both electrically and mechanically.

10. Tighten the clamping gland.

11. Seal the cable gland with putty.

12. Connect the conductors to terminal board STB-1 referring to the interconnection diagram

on page S-1.

2 - 2

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Fabricating signal cable RW-6895

13. At the signal cable gland on the scanner unit, unfasten the clamping gland and remove

gasket and flat washers.

14. Shorten the signal cable making the length from the cable gland to the cable end 500 mm.

Remove the vinyl sheath by 550 mm; the armor by 540 mm.

Approx. 550 mm

Inner shield

Outer shield

Anti-corrosive

Armor

vinyl sheath

Approx. 540 mm

Figure 2-5 Fabricating the signal cable RW-6895

15. Unravel the outer shield with a screwdriver or similar tool to expose the cores beneath the

outer shield. Similarly, expose the cores beneath the inner shield. Mark all cores for future

identification.

16. As shown in Figure 2-6, slide the clamping gland, washers and gasket onto the signal cable.

Fold back the armor by 5 mm, and then pass it through the two flat washers.

Gasket

Armor

Seal with putty

after tightening.

Clamping gland

Washer

Gland body

Washer

Figure 2-6 Passing clamping gland, washers and gasket on signal cable

17. Unfasten the terminal board RTB-801.

18. Pass the signal cable behind the terminal board plate for cable MPYCY-12, and then pass it

through the locking wire saddle.

2 - 3

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Terminal board fixing plate for RTB-801

Ground terminal

Figure 2-7 Scanner unit, rear view

Locking wire saddle

Figure 2-8 Scanner unit, rear view

19. Fasten the terminal board fixing plate for RTB-801.

2 - 4

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20. Route the signal cable beneath the lower left side of the terminal board fixing plate for the

RTB-801. Shorten conductors of the signal cable considering their locations on the RTB-

801.

75 mm

Coaxial cable

2C-2V

50 mm

Fold back the conductor

as illustrated below.

45 mm

Inner core

Conductor

Crimp-on lug

FVD1.25-3

(Red, ∅3)

Crimp-on lug

FV1.25-M3

6 mm

(Red, ∅3)

Figure 2-9 Fabrication of coaxial cable

21. Shorten the shield considering the distance to the ground terminal on the left side of the

scanner unit chassis. (See Figure 2-7 for location.) Attach the crimp-on-lug FV5.5-4 (ø4,

yellow) to the shield.

22. Remove approx. 6 mm of the vinyl insulation from the end of each conductor and fix the

crimp-on lug FV1.25-M3 (Red) to each conductor. As shown in Figure 2-8, fold back the

coaxial cable four times and attach the crimp-on-lug FVD1.25-3 (ø3, red).Attach the crimp-

on-lug FVD1.25 (ø3, red) to the shield.

23. Tighten the clamping gland, and then seal the cable gland with putty.

24. Fasten the shield to the ground terminal on the scanner unit chassis.

25. Connect conductors to the terminal board RTB-801 referring to the interconnection dia-

gram.

When the length of the signal cable is more than 150 m, remove the solder at terminal Nos.

24 (red) and 26 (black) on the DJ-1 connector. (#24 and #25 are spares.). Fasten the wires as

shown below.

DJ-1

TB801

YELLOW, LARGE

HEATER HOT

+12V

WHITE, LARGE

RED, LARGE

DISPLAY

UNIT

SCANNER

UNIT

BLACK, LARGE

Length 150 m

or more

Figure 2-10 Wiring on terminal boards when length of signal cable is 150 m or more

26. Check for miswiring, loose screws. Grease the fixing bolts for the cover, gasket, and tap

holes in the scanner chassis. Attach the cover.

2 - 5

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When the De-Icer is installed

1) Before beginning any work on the scanner unit, turn off both the DE-ICER switch (S31) on

the sub panel of the display unit and the breaker for the de-icer line at the main switchboard

to remove the power (100 VAC, 1ø) to the de-icer. (Turning off the power to the display unit

has no effect.)

2) The neck of the scanner unit becomes VERY HOT when the de-icer is working. (The de-

icer turns on when ambient temperature is below 0°C.)

2.2 Display Unit Connection

Two cables are terminated at the display unit: the signal cable RW-4839 or RW-6895 and the

power cable. The signal cable, available in lengths of 15m, 20m, or 30m, comes with a connec-

tor preattached to it for connection to the display unit.

Fabricating power cable DPYCY-3.5

1) Remove the vinyl jacket by 150mm.

(a)

DPYCY-3.5

2) Cut off jute tape wrapped around the braided

shield.

Approx. 150 mm

Vinyl jacket

(b)

15 mm

5 mm

3) Unravel the braided shield to expose the cores

by about 120mm.

Armor

4) Slip the terminal cap onto the core.

5) Remove insulation of cores by about 10mm.

Fix crimp-on lugs to the cores and braided

shield.

10 mm

(c)

6) Cover the braided shield with vinyl tape, leav-

ing the portion which will lie inside the cable

clamp untaped.

Terminal cap

Clamp here

(d)

Taping

Figure 2-11 How to fabricate

power cable DPYCY-3.5

2 - 6

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Leading in cables to the display unit

To lead in cables easily, unfasten the cable clamp at the right side of the display unit.

Cable

clamp

Figure 2-12 Location of cable clamp inside the display unit

Tabletop

Cables can be led in through the cable gland at the rear or underside of the unit.

Pedestal

Process cable same as

on tabletop type

Lead in cables through the cable gland

at the bottom right-hand side of the ped-

estal. Pass cables through the cable

clamp and tighten the cable clamp. Fix

cables to the pedestal frame with cable

ties as shown in Figure 2-13. Finally,

pass cables through the cable clamp at

the right side of the display unit and then

tighten the cable clamp.

Leaving sheath

intact, pass cable

through cable

clamp

Figure 2-13 How to lead in cables

through the pedestal

2 - 7

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Connections

Power cable

Connect the power cable to the filter at the right

hand side of the display unit. Cover the filter ter-

minals with the terminal caps (supplied) to insu-

late the terminals.

Filter

Power

cable

Figure 2-14 Location of filter

inside the display unit

Gyro signal

Solder the 5 pin and 3 pin VH connectors (supplied) to the gyrocompass cable. Plug in the

connectors on the GYRO CONVERTER Board. For further details, see page 4-2.

GYRO CONVERTER

Board

Rear panel

Figure 2-15 Location of GYRO CONVERTER Board

HOW TO ATTACH NH CONNECTOR TO SIGNAL CABLE

Shrink tubing

NH connector wire

Solder

20mm

NH connector

housing

3 Solder connector

to signal cable.

4 Heat shrink

tubing with solder-

ing iron.

2 Cut shrink tubing

in 20 mm lengths and

slip onto each wire.

1 Insert NH connector

wire into NH connector

housing.

2 - 8

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Grounding

The display unit must be grounded from

a grounding stud having a wing nut lo-

cated at the point shown in Figure 2-16.

CAUTION

An ungrounded unit can cause electrical shock when

its metallic parts are touched and give off or receive

electromagnetic interference.

Tabletop type

Pedestal type

Figure 2-16 Grounding the display unit

Radar buoy

Solder the radar buoy signal line to the "BUOY" connector on the VDA Board. Connect the

trigger line to the corresponding connector on the INT Board.

Signal input/output circuit (INT Board INT-9170)

Nav data

+5V

2SC1015

J450

TXD1-H

TXD1-C

RXD1-H

RXD1-C

+5V

PC900V

+5V

Vcc

DTR1-H

DTR1-C

DSR1-H

DSR1-C

OUT

GND

Figure 2-17 INT Board circuit

For other input/output circuits, see the circuit diagram of the INT Board at the back of this

manual.

2 - 9

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Table 2-1 Input and output signals on the INT Board

Signal name

Name on

Connector Connector Applicable

Remarks

pcb

no.

type

equipment

Input Signal

Gyro signal

J4*

J5*

VH, 5 pin

VH, 3 pin

*: On pcb

A64P1106 (option)

Speed log

signal

LOG

J448

J459

J460

J445

J458

J464

NH, 3 pin

NH, 4 pin

NH, 3 pin

NH, 4 pin

NH, 8 pin

NH, 7 pin

200 pulses/nm, etc.

Not used

Current indicator NAV

signal (tide)

COURSE

Current indicator NAV

signal (speed)

Not used

SPEED

Radar buoy

signal

RADAR

BUOY

Remote display

signal

EXT-RADAR

or RJ-7

Rudder angle

signal

ROT

RUDDER

Output Signal

External ARPA

signal

EXT-ARPA

SLAVE

J444

NH, 8 pin

FA-2805

heading, bearing,

Tx trigger

Slave display

signal

J442

J443

CD-140, CD-141,

GD-500,

heading, bearing,

video, Tx trigger

FMD-800,

FMD-8000 *1

*1: Display unit for

FR-2800 series

radar can be used

as slave display

unit.

Buzzer signal

EXT-BUZ

J451

J452

NH, 3 pin

NH, 2 pin

OP03-21-3

buzzer drive signal

speaker signal

Buzzer signal

(AC)

EXT-BUZ

(AC)

Speaker w/amp

Monitor signal

J449

NH, 10 pin

VER synchronous,

HOR synchronous,

video (NTSC for-

mat)

RJ-8

J456

NH, 4 pin

NH, 5 pin

Input/Output Signal

INS data

RJ-7

INS. DATA

J455

J457

RJ-7

NH, 15 pin

NH, 8 pin

Nav data

N AV DATA

ARPA DATA

J450

J454

NH, 8 pin

NH, 5 pin

ARPA data

2 - 10

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J445

J458

J441

J464

J452

#1 DTB-2

J449

J463

J467

J450

J454

J461

J460

J448

J459

J456

J451

J443

J455

J444

J442

J457

Figure 2-18 Location of connectors on the INT Board

2 - 11

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Grounding cables and covering unused cable slots in the cable clamp

Cover unused cable

slots with aluminum tape.

Ground shield

of cables by

cable clamp.

Fasten ground wire

of cables by fixing

screws for cable clamp.

Figure 2-19 Cable clamp

CAUTION

1) The display unit must be grounded. Failure to

ground the unit may cause electrical shock when its

metallic parts are touched and give off or receive

electromagnetic interference.

2) Cover unused cable slots in the cable clamp with

aluminum tape to prevent foreign objects from

falling into the display unit through the cable slots.

2 - 12

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2.3 Changing Power Specifications

This radar can be powered by 100V AC or 220V AC, and is set at the factory for connection to

a 100V power supply. To power the unit by 220V AC, remove jumper JP13 on the POWER

Board as shown in the procedure below.

CAUTION

Turn off the power before executing the procedure

shown below.

Procedure

1) Turn off the power.

2) Unfasten the four screws circled in the

illustration at right.

3) Remove the power assembly.

4) Remove the power assembly cover.

5) For 220V power supply, remove jumper

wire JP13 on the POWER Board.

6) Mount the power assembly.

JP13

RT-9183

Power

Jumper wire

JP13

C42

100 VAC Short

220 VAC Remove

2 - 13

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2.4 Power Supply Unit

Wire the unit as shown in the interconnection diagram.

PTB14

Thermal relay

Relay K3

PTB11

Relay K1

Photo No. 3148

PTB13

PTB12

Figure 2-20 Power supply unit PSU-004

The type and rating of the thermal relay (K2) are as below.

Thermal Relay (K2)

Ship's Mains

Scanner Unit

Type

Rating

2.3 A

200/220 VAC, 3∅

380/440 VAC, 3∅

RSB-0026

RSB-0031

TR-0NH/3 1.7A

TR-0NH/3 0.8A

TR-0NH/3 1.7A

TR-0NH/3 0.8A

1.0 A

220 VAC, 3∅ , 50Hz RSB-0088

220 VAC, 3∅ , 60Hz RSB-0089

440 VAC, 3∅ , 60Hz RSB-0090

2.6A(MAX)*

1.2A(MAX)*

*: Set the rating to maximum ( 2.3A to 2.6A or 1.0A to 1.2A) for HSC radar.

2 - 14

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3. INITIALIZATION AND ADJUSTMENT

3.1 Menus for Initialization and Adjustment

Accessing the menus

The menus for initialization and adjustment of this radar are locked to prevent adjustment by

the user. To access them;

1) Turn off the power.

2) Turn on the #4 segment of DIP Switch S1 on the SPU Board.

Figure 3-1 Display unit (top view, cover removed)

and SPU Board

Menu operation

1) Press the [RADAR MENU] key.

2) Press appropriate numeric key to select menu desired.

3) Press numeric key to select item.

4) Press same numeric key pressed in step 3 to select option.

5) Press [ENTER] to register selection.

Menu description and menu tree

See pages 3-6 and 3-11, respectively.

Restoring default settings

1) Press [RADAR MENU] [0] [0] [2] [0] [0] [0] [0] to select FACTORYDEFAULT on the

INITIAL SETTING 4 menu.

2) Press the [ENTER] key.

3) Wait for 10 seconds.

4) Turn power off, and on again.

5) Press [RADAR MENU] [0] [0] [2] [0] [0] [0] [2] to select MODEL on the INITIAL

SETTING 4 menu.

3 – 1

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6) Press the [2] key several times to select OTHER S-BAND.

7) Press the [ENTER] key.

3.2 Heading Alignment

Antenna unit mounted error (heading reed switch timing error) can be compensated at the dis-

play unit.

Correct bearing

relative to heading

Apparent position

of target

000

350

340

010

000

350

340

010

020

330

030

330

030

Target

320

310

040

320

040

050

060

070

080

310

050

060

070

080

300

290

300

290

280

270

260

090

100

270

260

090

100

Apparent

position

of target

Correct

250

240

230

250

240

110

120

130

110

120

130

bearing

relative to

heading

230

220

210

140

220

140

150

210

150

200

190

160

200

160

170

180

190

170

180

Picture appears

deviated clockwise.

Antenna mounted error

to port (heading switch

advance)

Antenna mounted error

to starboard (heading

switch delayed)

Picture appears

deviated counterclockwise.

Figure 3-2 Heading alignment error

Procedure

1) Turn on the power. Press [RADAR MENU] [0] [0] [2] [2] to select HD ALIGN on the

INITIAL SETTING 1 menu.

2) Select a target echo (by gyrocompass, for example) at a range between 0.125 and 0.25nm,

preferably near the heading mark.

3) Operate the EBL control to bisect the target echo. (The value shown on the display is an-

tenna position in relation to ship's bow.)

4) Press [ENTER] to finish.

3.3 Adjusting Sweep Timing

Sweep timing differs with respect to the length of the signal cable between the antenna unit and

the display unit. Adjust sweep timing at installation to prevent the following symptoms:

• The echo of a "straight" target (for example, pier), on the 0.25nm range, will appear on the

display as being pulled inward or pushed outward. See Figure 3-3.

• The range of target echoes will also be incorrectly shown.

Figure 3-3 Examples of correct and

incorrect sweep timings

Correct

Target pushed

inward

Target pushed

outward

3 - 2

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Procedure

1) Turn on the power. Press [RADAR MENU] [0] [0] [2] [3] to select TIMING ADJ on the

INITIAL SETTING 1 menu.

2) Transmit on the 0.25nm range.

3) Adjust radar picture controls to display picture properly.

4) Select a target echo which should be displayed straightly.

5) Adjust the VRM control to straighten the target echo.

6) Press the [ENTER] key.

3.4 Adjusting Video Signal Level

When the signal cable is very long, the video amplifier input level decreases, shrinking target

echoes. To prevent this, confirm (and adjust if necessary) video amplifier input level.

Procedure

1) Connect an oscilloscope to TP3 on the INT Board (INT-9170).

2) Transmit on the 12nm range. Take trigger at TP10 on the same board.

3) Adjust VR1 on the INT Board so the value of TP3 is 4Vpp. (For secondary display, adjust

VR2 for same level.)

VR2

VR1

INT Board

TP3

Figure 3-4 Location of INT Board

3 – 3

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3.5 Suppressing Main Bang

If main bang appears at the screen center, suppress it as follows.

Procedure

1) Turn on the power. Transmit on a long range and then wait ten minutes.

2) Adjust [GAIN] control to show a slight amount of noise on the display.

3) Select the 0.25nm range. Adjust the [A/C SEA] control to suppress sea clutter.

4) Open the tuning compartment on the control unit.

5) Set VR901(MBS-L) at two o'clock and then slowly turn VR902 (MBS-T) clockwise to

suppress main bang.

6) If main bang still exists, turn VR901 clockwise slightly, and then slowly turn VR902 clock-

wise. Note that excessive main bang erases targets in close range.

TUNE

switch

TUNE

control

TUNE

AUTO

Up: AUTO

Down: MAN

GYRO SET

MAN

HOLD

VR901

(MBS-L)

OFF

MBS-L

MBS-T

VR902

DEGAUSS

(MBS-T)

ERROR

PM-ON/OFF

STBY

Tuning compartment

Figure 3-5 Control unit, location of tuning compartment

3.6 Confirming Tuning

The radar receiver can be tuned both automatically and manually. Confirm that the radar can be

tuned both automatically and manually.

Procedure

1) Turn on the power. Set the TUNE switch in the top right hand panel to MANU.

2) Transmit on the 48nm range.

3) Adjust sensitivity and picture brilliance. Turn the [A/C SEA] and [A/C RAIN] controls

fully counterclockwise (off).

4) While observing the picture, turn the [TUNE] control in the tuning compartment slowly

counterclockwise (clockwise) more than twice to get best (worst) tuning point.

3 - 4

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5) Turn the [TUNE] control slowly clockwise (counterclockwise) to display the longest tun-

ing bar.

6) Set the TUNE switch to AUTO and wait about 10 seconds (about four rotations of the

antenna).

7) Confirm that the radar found best tuning point. Peak tuning is obtained when about 80% of

the tuning indicator lights.

3.7 Confirming Magnetron Heater Voltage

Magnetron heater voltage is adjusted at the factory. Confirm that magnetron heater voltage is

within the prescribed rating as follows:

1) Turn on the radar and select the 0.125 mile range.

2) Press [RADAR MENU] [0] [0] [2] [0] to open the INITIAL SETTING2 menu.

3) Press [5] to select the 5. SCANNER STOPPED field and the TX option.

4) Turn off the antenna switch in the display unit.

5) Connect a multimeter, set to the 10 VDC range, between #12(+) of P801 and the chassis.

6) The multimeter should read 9.2-9.4 V. If not, adjust VR1.

7) “Transmit” on the 48 mile range.

8) The multimeter should read 7.3-8.3V.

9) Press [RADAR MENU] [0] [0] [2] [0] [5] to select the 5. SCANNER STOPPED field and

the ROTATE option.

10) Turn on the ANT MOTOR SW on the scanner unit.

PCB 03P9243

ANT MOTOR SW

Multicore cable

Signal cable

Figure 3-6(a) Scanner unit, bow view

VR1

P801

Figure 3-6(b) Scanner unit, stern side view

3 - 5

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Setting method 2: by make and model of gyrocompass

Table 4-2 Setting GYRO CONVERTER Board by make and model of gyrocompass

Maker

Models

Specification

1-1

1-2

1-3

1-4

1-5

1-6

1-7

1-8

2-1

2-2

2-3

JP1

JP2 JP3 JP4 JP5

FURUNO

GY-700

DC step

100V 180x

5-wire, open collector

OFF OFF

ON OFF OFF ON

OFF OFF

#4,

#5,#6

Anschutz

Standard 2,3

Standard 4,6

Standard 20

AC synchronous

50/60Hz

Rotor voltage: 50/60V

Stator voltage: 22V

360x

OFF OFF OFF OFF OFF OFF OFF OFF OFF ON OFF

#1,

#2,#3

AC synchronous

50/60Hz

Rotor voltage: 50/60V

Stator voltage: 90V

360x

OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF

#1,

#2,#3

DC step

35V 180x

COM(-) ,3-wire(+)

OFF OFF

ON OFF OFF ON

ON OFF

#4,

#5,#6

Yokogawa

Navtec

(Plaith

C-1/1A/2/3

A-55, B-55

AC synchronous

50/60Hz

Rotor voltage: 50/60V

Stator voltage: 22V

360x

OFF OFF OFF OFF OFF OFF OFF OFF OFF ON OFF

#1,

#2,#3

type)

CMZ-250X/

300X/500

DC synchronous 360x

OFF OFF OFF OFF OFF OFF ON

ON OFF OFF ON OFF OFF ON

ON OFF Remo- #2

∗

DC step

ON OFF

#4,

35V 180x

#5,#6

COM(+),3-wire(-)

CMZ-100/200/ AC synchronous

300 50/60Hz

C-1Jr,D-1Z/1/3 Rotor voltage: 100V

OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF

#1,

#2,#3

IPS-2/3

Stator voltage: 90V

360x

CMZ-50

Note

step

OFF OFF

ON OFF OFF ON

–

ON OFF Remo- #2

–

∗

35V 180x

COM(+),3-wire(-)

Plaith

NAVGAT II/III

AC synchronous

50/60Hz

Rotor voltage: 50/60V

Stator voltage: 68V

360x

OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF

#1,

#2,#3

Tokimec

(Sperry

type)

ES-1/2/11

AC synchronous

OFF OFF OFF OFF OFF OFF OFF OFF OFF

#1,

#2,#3

GLT-101/102/ 50/60Hz

103/106K/107 Rotor voltage: 100/110V

Stator voltage: 90V

36x

ES-11A/110

TG-200

AC synchronous

50/60Hz

OFF

#1,

#2,#3

PR222R/2000 Rotor voltage: 100/110V

PR237L/H

GM 21

Stator voltage: 22V

90x

MK-14

MOD-1/2/T

NK-EN,NK-EI

DC step

70V 180x

COM(-), 3-wire(+)

OFF OFF

ON OFF OFF ON

–

OFF OFF

#4,

#5,#6

–

SR-130/140

DC step

70V 180x

5-wire, open collector

OFF OFF OFF ON OFF OFF OFF

#4,

#5,#6

TG-100/5000

PR-357/130/

140, ES-17

GLT-201/202

/203

DC step

70V 180x

COM(+), 3-wire(-)

OFF OFF

ON OFF OFF ON

#4,

#5,#6

TG-6000

DC step

24V 180x

OFF OFF

ON OFF OFF ON

ON OFF

#4,

#5,#6

–

GM-11

AC synchronous

50/60Hz

OFF

OFF OFF OFF OFF OFF OFF OFF OFF OFF

#1,

#2,#3

Rotor voltage: 100V

Stator voltage: 90V

90x

SR-120,ES-16 DC step

OFF OFF

ON OFF OFF ON

–

ON OFF

#4,

#5,#6

–

MK-10/20/30

35V 180x

Kawasaki

GX-81

AC synchronous

50/60Hz

OFF

ON OFF OFF OFF OFF OFF OFF

OFF OFF OFF

#1,

#2,#3

Rotor voltage: 100/110V

Stator voltage: 90V

90x

Armabrown MK-10,MKL-1 DC step

SERIES1351, 50V 180x

OFF OFF

ON OFF OFF ON

–

OFF OFF

ON OFF

#4,

#5,#6

–

MOD-4

COM(+), 3-wire(-)

Robertson

SKR-80

DC step

#4,

35V 180x

#5,#6

COM(-), 3-wire(+)

4 - 6

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