Furuno FR-2010 User's Manual
Contents
1. CTG21R 20 0 259 IN MICROFARADS UNLESS NOTED OTHERWISE Q2 25 774 ES 10 9 1211 65 8 7 1 1817 16 15 44 13 ALL RESISTANCE OHMS 0 25W AND CAPACITANCE CR3 R6 2 PTU 7040 FOR FR 2010 2010T 2020 2020T CR 1 CTB34M CTG215 2 amp 5 7010 FR 2030S C PTU 7010 FOR 2020 2050 220605 20501 5 IRADAR GD GND Es GND MOTOR 1 97 1 2 4 4 4 C35 L7 CR14 CR16 amp 8P441 ARE NOT USED FOR C PTU 7010 1 C PTU 7010 928 3517 812 616 1 15 FRU AL 22 241251 264 ARPA C1 820 200V TPG5 6 NOTE 2 87 827 29 022 2W 12 SCDIOA 1 m xh 142 32 205 25551 0 01 630V DOK 2Wj 0 01 630V 2 y 20 L5 04 53 OF 19 4700 70 CY Ld 51112 5 5 LJ 1 053 ___ R24 S7 4 47 2W 5 C10 R32 04 98 x K3 lt 1000 10 tk S 9 y 1 5 ub 0 01 630V 0 01 630V x2 x2 1 X 25 1162 2 _ a 3 16 4 ME 21 REN I 220 1000 16V R30 V 10 1W 6 2 L5 7 2 112. FURUNO The mode selected is indicated by HEAD UP NORTH UP or COURSE UP at the top left hand side of the screen Head Up Head Up CG Mode The picture is orientated so that the heading mark appears at the top of the screen This mode is most suitable for navigation in congested areas or narrow channels the Head up Cursor Gyro Mode the bearing scale rotates according to gyrocompass reading North Ship s Bow Heading Mark 2 wu Mark Note that the north mark appears only when a gyrocompass 15 connected Fig 6 Head Up Mode Display Course Up Mode 1 Direction Leading The orientation of the picture is sta Mark bilized so that the course immediately before the Course up is selected is fixed to the top of the screen if you make a course change press the SELECT touchpad to get the Course up Mode After the course change is completed press the RESET touchpad if you 51111 continue to use the Course up Mode Fig 7 Course Up Mode Display North Up Mode 1 The radar picture is stabilized so that the North 15 at the top of the screen and the heading mark changes according to the orientation of the ship s heading This mode is suitable for both measuring the ship s position and as a navigation monitor on a navigational chart The picture is stabilized against yaw of the vesse reducing the smearing of target echoes North North Heading Fi
3. IEUA 5 01 MON 1 2 22211 52 CMS 11781 und ial 4 1455 m TUN IND 3 47 4 i2 F at 0 7777 7245 J521 1 i TX TRIG lt EPET GAIN ESI 7141 JA HBS 53T 1 17 2 4 5 tS DISPLAY 44 A 134 O ror 870 6 2 ag 6 at MARK TUN 7 6 3 _ STAY 1 3 496 03 7032 ta E gt MAG CUR gt n 4 8 bs d h 1 1 0 9 5 paa 5 a fsal r0 VDA 7047 2202 ti V WERL one 7 35 1 an 94 m 1875 P475 RAS3 CRASS TLETA Sere Pag 497 4 Atrt 9 H 112 3 12 8 M oe ret DEF DRIVE 4 SCANNER 4 45 1 5 2f DSP DRIVE 5 010 65 12 3 3 42 7 a a i77 Lage 1 ax _ z abr lt c 3 17 2 5 35 45V 5 4 i 44 6 8 16 Uo MN 19 3 9 5 7
4. pps Occasionally echo signals appear on the screen at positions where there is no target or disappear even if there are targets They are however recognized if you understand the reason why they are displayed Typical false echoes are shown below MULTIPLE ECHOES Multiple echoes occur when a short range strong echo is received from a ship bridge or breakwater second a third or more echoes may be observed on the display at double triple or other multiples of the actual range of the target as shown in Fig 23 Multiple reflection echoes can be reduced and often removed by decreasing the gain or properly adjusting the A C SEA control True echo Multiple echoes Fig 23 Multiple Echoes BLIND AND SHADOW SECTORS Funnels stacks masts or derricks in the path of antenna may reduce the inten sity of the radar beam the angle subtended at the scanner is more than a few degrees a blind sector may be pro duced Within the blind sector small targets at close and long ranges may not be detected Fig 24 RADAR PEDESTAL RADAR MAST Eur pert dE Fig 24 Blind and Shadow Sectors 25 SIDELOBE Every time the radar pulse is transmitted some radiation escapes on each side of the beam called sidelobes a target exists where it can be detected by the side lobes as well as the main lobe the side echoes may be represented on both sides of the true echo at the sa
5. 3075 PST 7343 EXT BUZZER MEMORY 20 20 5 85 lt 0327031 21 HEADING FL z H 9 5 TUN 22 GEARING SYNC P 224 E ne OF en ne 5 i 33 23 fW 82 T 2 4 1 oT 2 MOTOR 254 2 i TOR 1 1 4 26 lt 2L QE n 6 0328624 1 1 TRACKBALL 1 28 vIDEO 2 3 3 HOLD BOARD gt i E 414 03 6856 b 4 i HLOL MBD 1696 IGyro interface 5 4 GND 1 1 H gt i ARPA 8 1 4 gt m ________ Reet 19 9Y 1 amp 1 41 11201 1 5451 EIALATALAIARRAA sere lace Dh 5 om 4201 HOFF 3 4 SKHCACOSTA 29 ee VIDEO D ran GYRO 55 6 5 etal O Wee 2010 2020 Ieri APPROVED KAKAN ERE CHECKED pm DISPLAY UNIT CONVERTER lt 5 555 2 2 roth sp t C3308 011 G FURUNO ELECTRIC CO LTD
6. 67 Packing d SAAS aK inner Shield 256 8 ge A dw d 177 7 72 2 5 Armor if provided EB SV a xg ITEM NAME MATERIAL Q TY DWG REMARKS z f c THIRD ANGLE PROJECTION TITLE L Fe ER RB APPROVED RADAR SCANNER UNIT CHECKED SCALE 70 XN3A hA C2PTN2N C2P8N2N z DRAWN 7 ot WEIGHT 9 C3249 014 FURUNO ELECTRIC LTD FURUNO 209 71748 150 5 29 32 ka SF 4 210 8 y4 270 20 7 2 1009 5v V 90V AC220V 38 8 COMPAS SAFE DISTANCE RFI E STANDARD 5774 7 STEERING ME ____ ts 2 Date Sept 1974 Checked Ref 10 5 8 MODEL 7 Page D 4 260 10 1 4 Cc momo 8 17 64 Hx 41 20 17 64 FIXING HOLE B WEIGHT 12 27 ibs 10 UNIT mm inches 485V 440 00 400V 99 OV AC440V X TYPE 11 4 15 00 AW INPUT OUTPUT RU 1758 30416 220 ACIOOV RU 1805 TITLE DWG No 3003 001 FURUNO ELECTRIC LTD FC 30417 _ ACIOOV KS UZ Tm AC440V RU 1758 1803 TRANSFORMER UNIT r ru FURUNO
7. are displayed for the last VECTOR plotted target Note that the CPA TCPA indications are not updated during plot intervals Example of data for the target selected by the symbol Vector Vector length time is indicated 16 Plot Data Table ECHO AVERAGING O ee The ECHO touchpad is used to suppress sea clutter Echoes received from stable targets such as other ships not moving at a fast relative speed to own ship appear on the screen at almost the same position for every rotation of the sweep the other hand unstable echoes such as sea clutter appear at random sometimes making discrimination of target echoes difficult To distinguish target echoes from sea clutter this radar uses the scan to scan correlation method The scan to scan correlation method stores and averages succesSive picture frames the echo is stable it is presented in its actual strength level if it is unstable it is suppressed in brilliance allowing you to discriminate targets from sea clutter 14 properly use the echo averaging facility it is recommended to first suppress sea clutter with the A C SEA control Then press the ECHO AVG touchpad There are two levels of correlation corresponding to the number of picture frames to be correlated and the level in use is Shown at the top of the screen Each time the touchpad is
8. a PAS P rom ot uno mne 1 SCANNER lt di DEF DRIVE MJI lt 1 4 5 av 55 SEM TEE zz2 3 DSP DRIVE 15 LI SM 41 c k a ED amp 3 5 T lt abc lt 18 P L A 25 1953 311 11411 a j 9 D gt m cade 1 835 5 33 Eit wp 4 20 211 2 EXT BUZZER E MEMORY POT HEADING i 20101 0327031 22 BEARING SYNC P 22 21 PL 58 4 33 MOTOR 214 SE we 99 32 2 TOR 1 5 2 1 8 SEITE L MOTOR 1 264 i sc n ae 0 28 eun 5 1 50 15 UL ES D 3 y HOLD bt d 1 1 1 1 4 MBO 1596 Gyro interface i 5 1 GND 1 AD ARPA 5 7 11 0327030 L 4 u u i m edt 5135 1 zov HM 1 32abc x dm mm m wen d t Ri 5 3 LL in TY R441 10k B ooo i a m as TEES m mE
9. switch are given 1 the tables below Table AP 1 Specifications of DIP 5witch S3 A D Board Specification Alteration Prohibited Use of Echo Averaging Levels 1 amp 2 NOT YES in the Head up Mode VRM Measuring Unit EN Performance Monitor Connection NOT YES Transmission when antenna rotation is suspended 6 Display ship s stern mark NOT YES Radar type REGULART EB Radar selection MASTERT SLAVE Table AP 2 Specifications of DIP Switch 52 Marker Board t factory setting API 1 FURUNO 3 P t T 1 an dl rEO eee f 40 478 4 3 3 00 12 PKBS 4A0 3 EVA ako _ 3 pom 1 16 is SLAVE DISPLAY p SLAVE DISPLAY RI 3 23 2 RDO 4 6 1 pi 1 5 17 B A 7 802 584 2 179 2 6 l SLAVE DISPLAY SYNC P gt EE tvid SLAVE DISPLAY 182 plotter m 4
10. 0245 C36 amp 700 151588 470 100 1 x C23 i 470 100V 25 3 Q1 4 ou 35 36 838 43 5 3300 25V RC6220 us Ca i 4 10K 2W K 1 2 2 L7 0245 P vel CI RN 13 R2 C7 C14 wi 2 000P 22K 0 068 47 16V _ R14 E gt HEATER COLD 3A 1 9v 12 R16 8 37 TP45 815 100 120 HE 033 1Wx2 V S t 4 R25 CR2 82K 12 RT 7034 FR 2010 PO RT 7090 2020 20207 S amp RT 7419 FR 2020X 2050X R24 R40 R3 FR 20305 20605 0 22 2W 100 1 TPG2 V Pha 11 M 19 O 3 IN 00 C35 2 T 822 5 45 O __ GD i 12V 12 102 HEATER MOTOR 823 C31 842 CRIA CR10 CRT CRS CR36 CRIS C27 1571 10 50V 1000 10 18k 3W Ty t nem 7170 U3 MR31 9HD RC713L _ 24 EAS ACA 151588 l APPROVED 7 A TITLEPTU 7010 POWER SUPPLY CKT FR 2050T a Wt y ag FR 2020T 2010T 03 7072 rr 20305 20605 CHECKED ___ _ U4 FR 2020X 2050X FR 2010 2020 DRAWN C3308 014 2 3 4 5 6 7 8 2 5 1 TQ 0259 JOP ALL RESISTANCE OHMS 0 25W AND CAFACITANCE IN
11. 3 r lt i 1 a oy HOT 473 gt ______ i 2 an 3 qo 4 m ato Plotter a 1 1 5 m RECTIFIER amp AC MOTOR ol 23 2 lt 1 22 RU 34 x 3 TRACKBALL U 23 BPCT 5161 6 4 t i amp 3 LM LM ML DISPLAY rm 32abc 1 TB 1 41 MOTOR 1 6 in IET 20378 i 2503 P603 1 n ca 1 l 45 10 PAL 7140 3622 11 550 6 I GNO 2 gt SPARE 1 A ANTENNA 1 2 3 7142 J452 Il 3 20 th 1 12 2 PAP SEA 5 _ ___ ruw 3 4 FUA am Las TX TRIG lt HOO fT i UMS IFES lt 1 LI wes M PAA 7245 521 71 1 h 14 2X y 5 7151 Ou Dod 27 5 Of o per MAG CUR 8 lt 5 6 220271 873 4 2 P496 146 03 7032 1 9 Q 0 6 RN z ne 55 3 gt gi 3 VDA 7047 2202 n ________ mi 5 n 15 lt Atej B 24 8 x crise
12. FURUNO ELECTRIC LTD NISHINOMIYA JAPAN FURUNO ELECTRIC C0 LTD 4 52 Ashihara cho Nishinomiya Japan 662 Telephone 0798 65 2111 Telefax 0798 65 4200 4 BOR i 4 4o q All rights reserved Printed Japan TOR Won n MO 4 FOR 3 4 4 Od umano PUB No OME 33080 FR 2010 1 0 Your Local Agent Dealer FIRST EDITION NOV 19 L 12 1992 mui FOREWORD Thank you for considering and purchasing the FURUNO FR 2010 Marine Radar For over 40 years Furuno Electric Company has enjoyed an enviable reputation for quality and reliability throughout the world This dedication to excellence is furthered by our extensive global network of agents and dealers This unit is designed and constructed to ensure the user of many years of trouble free operation obtain full performance from the equipment however you should carefully read and follow the recommended procedures for operation and maintenance No machine can perform its intended function unless it is operated and maintained properly We would appreciate feedback from you the end user about whether we are achieving our purposes SUPPLEMENT OPERATOR S MANUAL FOR FR 2010 FR 2020 FR 20305 To meet the requirements of any Adminis
13. Y 9 61 62 C63 64 65 66 18 T7 16 3 14 1 1000 6 _ YA 123 516 19 P441 41 1 1 lt 22 A 3 4 1 PON2 lt 3 TO TX HV BOARD 6 s lt e 5 a DC tLe 7179 POWER SUPPLY _ 7073 RECTIFIER 3308 015 Bey APPROVED g M DRAWN FR 2010T 2020T FR 2010 2020 5 6 2 3 4 5 6 7 8 9 7 7 ENT 7 7 9386856 A C14 970 C23 0 1 Ba E C25 22k 151588 NT 35V L R3 amp 277 amp 700 R38 2 120 10y V U1 4 828 4 AT 25V 4 V5 D R24 330 45388 2 46 Jor ETP 2474AY _ 700048 5 GYROCOMPASS a 2 2 C50 1 gt UP LLOU PAT EP 0 047p 50V 3300P BEN 89 150K 65 38545960616 263 vw 22 821 1 51 51 5 t y
14. e CI AA A E n c 11444 h 5 5 45 147 gA GND 4 2 VIDEO IN 812 3 9 37 x ____ _____ 1 GYRO CUMPASS T L 4 FOO 5568 FO 5 1 B 1 03 LI wee APPROVED ers ear n 8 1 CONVERTER _____ DRAWN MBD 1495 FR 2010 2020 AC DISPLAY UNIT 3308 010 FURUNO ELECTRIC LTD 3 5 s 018 3 1 25 M oe RASH 553 f Em 1139 SHIP S MAINS p ti NT 52 woe We A _ An Buz 424 BA 614 4 1 1 2 4 lt 9 m 4 1 PORI 2 21 16 a 2 1425 SLAVE DISPLAY E f 5 4 k 4 1 au 4 14 p u _ BAS 1015 Wideo plotter SLAVE DISPLAY E 4 o SYNC P 7 SLAVE DISPLAY 142 L GND 45 7 1 n j Bye l i EXT BUZZER _
15. sesa fs 4 L 4 L _ eo os n 12 n 08 Vi 14 PTU 7179 511 4 5 2 IE Am 1 nnl 1492 11 ACPU ear ge c S CM 113 dut oz 1 3 5 ise TEM as eee ew ee ee ee SPEED LOG gt amp gt 777 m lt 32abc lt o 5 ro 1 1 AMAT 384 2493 3493 Ls 2h 3 om m 2 s 5 f 7139 34011 i 1 uum um A 25 3 n m X4 15 ER c 61 2 2 9 45 2 2 o 3 5 3i Y un i m i bey cite 1 Plotter a 38 Pete 53 qp m uto Plotter 4855 EITHER ZEE ey COLD L3 2 e 60 _ TRACKBALL a i 1 n MOTOR me 34 east 5 5 5 1 14 L J ise o gt 2 PAL T140 1472 a D 550 5 Laing gt 3 5 5 PAVOTM2 52 1 SPARE 1
16. gt 53 53 SYNCHRO STEP NOTE 1 WIRECOLORCODE INSIDE WIRE B BIG WIRE L LIGHT COLOR AUG 2 SHIELD WIRE SHOULD EFFECTIVELY GROUNDED BOTH ENDS I FR 2000 SERIES 3 CONNECTOR PLUG FACTORY WIRED CHECKED Avg 6 5 INTERCONNECTION DIAGRAM 4 CABLES AND PARTS MARKED ARE NOT SUPPLIED AND SHOULD BE ARRANGED LOCALLY OR AT SHIPYARD 5 ONLY FOR 8 ft ANTENNA ON AC MAINS 1 Amano FURUNO RAR FIXING HOLES BU tt st MOUNTING DIMENSIONS 5 7 428 CABLE TERMINA An CABLE ENTR 280 5 10 AD 480 523 S x 0 RECOMMENDED Tz CLEARANCE T 2002 SERIES zt 9 owang REMARKS APPROVED Tm THIRD ANGLE PROJECTION L 2 38 zx 25 ST XI FURUNO ELECTRIC CO LTD BRAWN FURUNO x LENGTH F P S FIRING HOLES 777 YLT Clamp Ring ef te DETAIL OF CABLE ENTRY 2 JPN 29 7 7 CABLE ENTRY 939 X MOUNTING DIMENSIONS 4 Braided Shield PRAE A aA un DR m FX ITEM NAME APPROVED 25 THIRD ANGLE PROJECTION CHECKED SCALE 10 DRAWN 124220 WEIGHT
17. 9V 4 9 9 Plot Data Table 9 ee Bee 40 SE i e Ta 5 to AVERAGING 9 9 B8 9 B DB P b BR EEE E ECHO STRETCH ee 4 Oo SUB PANEL 9 o8 9 b 9 O9 9 9 pond PERFORMANCE MONITOR u OPERATING CONTROLS 9 b 9 8 B b b 9 O9 b 9 9 9 Bob e MARKERS LEGENDS amp ANNUNCIATORS 4 APPLICATION n 23 thru 28 MINIMUM AND MAXIMUM RANGES _ 23 RADAR RESOLUTION 24 BEARING ACCURACY 24 RANGE MEASUREMENT _ 2 5 24 FALSE 5 TEM 25 Multiple Echoes 25 Blind and Shadow Sectors 25 Sidelobe Echoes 25 Virtual Image 26 POSITION FIXING WITH __ hem hmm 27 Radar Range _
18. A 5 8 080 8102 CRA CTB 34M i 5 9 HP 013J 1000 1 gt gt GNE CR1 500 1000 C2 9 716 wF 820 22k my CR37 RG4C L35 ___ Lol 2 RL 7300 TP2 R40 RT R38 RG4C Q6 3 9k 4k SC 20 100 839 RGAC 36 ic 597 p le tx CR40 RG4C RL 7301 160 K36 5 23 RGAC ti 36 100 MN 1 i R33 2838 1 18k 4 4 18k a dus C39 22002 02 842 1 50V 1 X HEATER 183 RC4210 U3 C 2 HEATER COLD R 3 gt MOTOR 6220 ne 37 4 _ 1700 NOTE 2 gt amp MOTORG CB S0V 5 gt MOTORO 24 32 0 1045 7228 10k 445 6 FROM FUSES T2 81 7227 25k F1 amp F2 SM 5 TLPS21 1Y nim MA27W B ava di TP3 Rae 7 1 2 170v GND 50 gt 2 EM 17 0 3 1 R39 1 841 3 BK 3 127 gt 3 X GND 2 27 15112 52 R40 Rak TN K TLPS21 17 2 15 11 18k 3 bey 1667 TLP521 1Y 9 ue T 33 16V 4 R 40 33 450V 7 3 amamma t i gt S LIJ X Y 9
19. kg F TERMINAL BOARDS MAS 80 8 FORWARD 200 NOTE albe F AMF GND TERMINAL TE XE nexu 7 SERVICING CLEARANCE 1 vore 2 ar pe ae 201 27 13 LF 28 ANT LENGTH DIA OF OOmn id00mm 2200mm ROTATION y 1 WEIGHT 22 33kg 975 MTA L 7 KERTI SELECTABLE DEPENDS RADAR MODEL SEE INDIVIDUAL SPECIFICATIONS RMB Armor tif provided Kk MATERIAL QTY DW REMARKS me L 9 244385249 8 RADAR SCANNER UNIT ____ 1 2 3 2 7 2 2 2 DWG NO 3237 001 FURUNO ELECTRIC LTD FURUNO 700 470 JOO f GND TERMINAL X 7 71 FANG HOLES CABLE ENTRY PSO NOTE 1 BE T EAE GT RECOMMENDED SERVICING CLEARANCE 38 IR x X 00 TYPE 240 TYPE NOTE 2 ANT TYPE 3 4 4 3 S ana x Miis A 2070mm 4 ANT LENGTH 0 ee of 700 4 poo MOUNTING DIMENSIONS 4 M4 x d xX BRK CE L g 27 74 gt 7 2 Boze lamp Ring 28827113 LL SELECTABLE ANTENNA TYPE DEPENDS Copper Baad or ON RADAR MODEL SEE INDIVIDUAL Brai Sh rai ded Shield SPECIFICATIONS W 250
20. HM touchpad This touchpad controls the brilliance of the heading marker PLOT SYMBOL touchpad The brijliance of plot marks and vectors is controlled by this touchpad DATA touchpad The brilliance of alphanumeric data may be adjusted with this touchpad JOYSTICK touchpad This touchpad controts the brilliance of the cursor RING touchpad Pressing this touchpad adjusts the brilliance of the range rings MARK touchpad The brilliance of the VRMs EBLs Guard Zone and North Mark is controllabie with this touchpad PANEL DIM touchpad Press this touchpad to adjust the brilliance of the touchpad panel SELECT touchpad Presentation mode Head up Head up CG Course up North up is selectable with this touchpad RESET touchpad Press this touchpad in the Course up Mode to return the heading marker to 0 degree TRUE REL touchpad Pressing this touchpad alternates between true and relative bearing readout OFFSET RESET touchpad This touchpad offsets and resets the origin of an EBL OFF touchpad This touchpad may be pressed to erase an EBL ON touchpad This touchpad may be pressed to display an EBL ROTARY knob contro This control maneuvers the EBLs TO 25 aor 5 feces seal ainas 3294 HEAD UP Tana 32115 n be u pU 9 263 FUNCTION switch This switch is used to set the radar
21. No 2 a m EBL Origin Offset gt Fig 12 Using the Offset To measure the range and bearing between two other targets activate the other EBL and VRM To return an EBL to the screen center press the OFFSET RESET touchpad again Floating EBL for N type version l Press the OFFSET RESET key The EBL origin is offset to the cursor position In this condition the EBL origin can be maneuvered by the joystick trackball together with the cursor 2 To operate cursor only detach it from the EBL origin by pressing the j LOFFSET RESET key EBL origin remains fixed To return EBL origin to own ship position press OFFSET RESET key again 10 SETTING THE ALARM An alarm may be set to sound should targets ships landmasses etc above a certain signal level enter into a preset guard zone The size of the guard zone may be set between 0 and maximum range for distance and between 0 and 360 in bearing This alarm is very effective as an anti collision aid when using an autopi lot or navigating in narrow channels However 1 does not relieve the operator of the responsibility to watch out for possible collision situations It should never be used as a primary means to detect possible collision situations Operating Procedure for regular type version 1 Press the SET RESET touchpad to enter the guard zone setting mo
22. P b p p B b B V B b b 9 9 1 BASIC OPERATION Turning the Power On amp Transmitting the Radar Range Selection 4 TUNE Control Adjustment GAIN Control Adjustment Eliminating Returns from Sea Surface and Rain Clutter Brilliance Adjustment 4 Presentation Mode Selection 4 Reducing Radar Erasing the Heading Mark North Mark Display Color Selection 96 RANGE AND BEARING MEASUREMENT Range Measurement Bearing Measurement TP 00 amp Co AD SETTING THE ALARM 4 amp Po 9 4 P 9 E OFF CENTERING THE PICTURE 89 4 9 PLOTTING B Bo Bo 9 Bo P Bb B P P Do B P B Bo U B B amp Bob 5 9 Cancelling Plots amp Uo P 95 9 P D
23. RITT 4 0 0 HOLES 00 2 0 t 250 MOTE 1 16 Raye x RECOMMENDED SERVICING CLEARANCE FLATAR ECOMMENDED SERVIC 2 21 05 EAB COMPASS SAFE DISTANCE ATYTU 7 CABLE CLAMP 74 MAX 2 7A 7 17807 T 1m f 144402 Pte NPUT ACIDO 7159 200 220 7 40 6084 5 OUTPUT 084M 322 52 DC 24V 2 220 7 401 5 BF PST MOTE FOR 220VAC NPUT CONNECT 7 40 PRIMARY WINDINGS IN SERIES 4 ITEM NAME MATERIAL Q DWG NO REMARKS APPROVED THIRD ANGLE PROJECTION ime RU 3423 B 42 FT 74 RECTIFIER UNIT 77 DRAWN WEIGHT 16 5 C 3002 005 H REV 8 85 FURUNO ELECTRIC LTD
24. meter the current is below the normal value magnetron may be defective 1 Deteriorated magnetron Poor sensi tivity Check MIC detecting current with the check meter it is below the normal value MIC may have become detuned Detuned MIC 3 Dirt on radiator face 1 Defective RANGE touchpad Radar picture does not change Change range A D Board Memory Board Mother Board 1 Bad contact of touchpad Int Rej not performed IR not displayed Activate Int Rej circuit A D Board Mother Board Echo Stretch not performed ECHO STR not displayed 1 Bad contact of touchpad Activate Echo Stretch A D Board Mother Board 1 Bad contact of touchpad Range rings are not displayed Operate RING touchpad Marker Board Continued 35 Defective Touchpads If any touchpad is not operating properly first suspect bad contact of the touchpad If there is good contact the Memory Board or Marker Board may be defective 36 APPENDIX 1 SWITCHES The specifications of this radar be changed switches 53 and 52 located on the A D Board and Marker Board respectively The settings of these switches are displayed whenever the power is turned on specifications selectable by each
25. 2 5 hh c 27 Range and Bearing 27 Two Bearings 28 MAINTENANCE 29 thru 31 TROUBLESHOOTING ene oath 32 thru 36 APPENDIX 1 DIP SWITCHES oe cee cee eere hme mn 1 1 CIRCUIT DIAGRAMS 5 1 thru 5 16 Display Unit AC Specification 5 1 Display Unit DC Specification 5 2 Power Protection Board PCT 5141 5 3 AC Power Supply Circuit PTU 7010 PTA 7072 S 4 DC Power Supply Circuit PTU 7179 PTA 7073 5 5 TX HV Board BHV 7130 5 6 Mother Board 03P7133 5 7 Video Amplifier Board VDA 7047 5 8 Gyro Converter Board 03P6856 5 9 CRT Display Drive Board 75 861 5 10 CRT Deflection Board 5 860 5 11 CRT Socket Board 5 769 5 12 Scanner Unit lOKW 5 13 Modulator Board MD 7063 S 14 Modulator Trigger Board 5732 5 15 Amplifier Board AIF 6734 5 16 INTERCONNECTION DI
26. CENTERING THE PICTURE the Regular type set the sweep origin can be offset up to 50 of the selected range in any direction specified by the joystick or trackball cursor Qn the N type set the sweep origin can be offset to the stern side by 50 of the selected range to provide an extended forward view regardiess of the cursor position Off centering 15 possibie in relative motion head up north up and course up modes on the Regular type head up mode only on the N type Fotlow the steps shown to off center the radar picture Regular type 1 Press the JOYSTICK touchpad to display the cursor on the screen if it is not already displayed Place the cursor at a desired position by operating the joystick or trackball Press the SHIFT touchpad The sweep origin will be offset to the cursor position if it is located within 50 of the range use If the cursor is located outside this area the sweep ori gin will be moved to the limit of 50 of the radius in the direction of the cursor a 5 gt 7 ni i La iSO 4 5 4 1 i we Up to 50 of radius 4 C direction lt s mU rt Dy as pa m r E 3 cancel off centering press
27. CRT creates symptoms identical to poor sensitivity Clean CRT surface carefully CRT screen 29 Scanner motor Check and clean carbon Under normal use the See Fig 30 brushes and commutator carbon brush will If brushes have worn out last approx 2000 or abnormal spark is seen hours replace them 6 months to 1 year Clean the disc with a brush Timing disc See Fig 3l Carbon given off from the drive motor may fall in slit of this disc causing the sweep to jump erratically CRT anode and approach High tension on CRT attracts dust 10 environ ment and moist dust will cause poor insulation ASK YOUR DEALER TO CLEAN ANY HIGH VOLTAGE PARTS If any crack is found on rubber cap or wire sheath ask your dealer to replace damaged part Termina Check for loose connections boards Clean contacts or replace Sockets and plug if necessary plugs 30 Bearing Signal Generator Board MP 3795 Terminal Board RTB 801 Brushes Scanner Motor TOLERE 32 Photo No 639 43 31 TROUBLESHOOTING Whenever you suspect the radar is not functioning properly turn it off and check plug connections on p c boards If plug connections are secure proceed to the Trouble Finding List beginning on the next page If a board is found to be faul
28. EBL No 2 is for regular type only Using the Offset EBL for regular type version The origin of the EBL can placed anywhere with the joystick or trackball to provide measurements of bearing and range between two targets This func tion is also useful for assessing possible collision situations 1 Press the JOYSTICK touchpad to display the cursor on the screen Superimpose the cursor on the target echo desired by operating the joystick or trackball Cursor Data The range and bearing between own ship and the intersection of the cursor may be displayed or erased when the cursor is displayed at the upper left hand side of the screen by pressing the JS DATA touchpad 2 3 4 5 6 Display an EBL on the screen Press the OFFSET RESET touchpad and the EBL origin is placed at the intersection of the cursor After waiting 3 or 6 minutes operate the EBL rotary knob control until the EBL bisects the target If the EBL passes through own ship s mark the possibility of collision may exist To measure the range between two targets press the VRM ON touchpad to display the VRM No 1 or No 2 associated with the active EBL The range marker see Fig 125 is superimposed on the EBL the VRM rotary knob control the range to the other target is shown on the VRM annun at the lower right hand side of the screen Range Marker operable by VRM No 1 Range Marker operable by
29. No 000 081 045 1 thru 5 standard power cable connection pif fae 0 53 125VAC 000 549 060 eem i meme TX HV line 6801 10 250VAC 000 549 082 gt AC power line 6120 5 6 11 000 631 716 MB use diagonal 000 830 110 scanner unit Socket Wrench 13mm optional 17 sume FURUNO GC 2 t built in displav unit 000 030 417 220VAC l kg RU 1758 000 030 420 440VAC 12kq Rectifier Unit RU 3423 000 030 443 req when 240 radiator 1s used with AC spec 16 5kg 03 36 008 233 480 required CVV S 8x2C 000 560 634 standard 15m length RJ 2 5 6 iCursor Gyro ROM 11 7 iPower Cable 8 Handgrip 9 Performance Monitor 10 Interswitch Unit built tn display unit radar color display unit monochrome display 20kg 11 lAuto Ploter ARP 2 12 Slave Display Unit CD 140 141 FMD 800 8000 503 28 15 008 377 780 ant cable 15m 13 Signal Cable Assy RW 3839 2 cable without armor 503 28 25 008 377 750 ant cable 25m 008 377 760 ant cable 30m 503 28 30 503 28 40 008 377 770 ant cable 40m re macas synchro gyrocompass having a gyro ratio of 180 cannot be interfaced with the GC 2 In this case use A D Converter AD 10S Cursor g
30. S MATT S 1 188434 AAS aM ema x N IK 5 18814 qu 4 Tig ds LO 0000000108 12 ar 980109 lt 4 d DNAS E 08 08 9399131 t wm Dii WS X 3 46 AW e LF dii HEBES 8 8 8 H Vd UL I a di qun 9 74 we 6 7619 31 98 111441 3 1 HE Vd 1111111111 M s Sag E 5 Ordi 18 gt LL em e 926049 HOLY INGOW 594 i ictus 9996 UNI JINGOW 38 Lon 18818 v onnan 5 ANTENNA UNIT 3887 25C 2 2 230 NOTE3 DISPLAY UNIT 15m SUPPLIED OPTION TO 100m MAX RTB801 Dr BRN 1 DTB1 MICCUR 2 2 10 PERFORMANCE Ltt TUNINGIND ORG i 3 MONITOR H TRIGGER YEL 4 Lat es GRN 14 4 0 5 gt 33 c ttt SPARE BLU 6 gt ar SPEED LOG 1 4 1 TUNING gt 7 gt L L MAG CUR 8 gt at T P GND WHT L 9 gt 710 Fg od p 1 11 L L TXH V BRN Lt NE D Fg PULSE W2 ORG E 9V HOT B YEL D
31. all FURUNO digitized radars the FR 2000 series use Multi level Quantization of incoming radar echoes utilizing eight levels to produce the most detailed and accurate representation of targets possible 1 SCANNER UNIT 1 Type Slotted Array 2 Radiator Length amp Type 123cm XN2 200cm XN3 XN3A 240cm XN4A 3 Horizontal Beamwidth 1 8 XN2 1 23 XN3 XN3A 0 95 4 Vertical Beamwidth 25 XN2 3 20 5 Sidelobe Attenuation within 10 of mainlobe 24dB XN2 XN3 28dB XN3A XN4A 20 for 123cm antenna outside 10 of mainlobe 304 XN2 XN3 32dB XN3A XN4A 20 for 123cm antenna 6 Polarization Horizontal 7 Antenna Rotation 24 nominal windless load 8 Wind Load Relative wind 51 5 m s 100kts FURUNO 2 TRANSCEIVER UNIT l Transmitting Tube Magnetron 2 Frequency and Modulation 9410 30MHz PON X band 3 Peak Output Power 1OkW nominal 4 Pulselength amp Pulse Repetition Rate Range nm 0 25 0 5 0 75 1 5 Pulselength us 0 08 Pulse Rep Ratet Hz 2200 1100 H 0 5 6 24 T p 500 Pulse Rep Ratet Hz 2200 1100 500 5 Modulator SCR line Pulse Modulator 6 IF 60MHz Tuning Manual with tuning bar 8 Receiver Front End MIC Microwave IC 9 Bandwidth short pulse 28MHz long pulse 3MHz 10 Duplexer Ferrite Circulator with Diod
32. of the heading marker Plot Symbol The PLOT SYMBOL touchpad controls the brightness of the 10 plot symbols in OFF LOW MEDIUM HIGH intensity levels Data The brightness of the plot data table at the upper right hand corner of the screen RANGE RING GYRO gyro reading and VRM and EBL readouts be adjusted in OFF LOW MEDIUM HIGH intensity levels with the DATA touchpad Joystick The JOYSTICK touchpad controls the brilliance of the cursor Each time the touchpad 15 depressed the brilliance of the cursor changes in the following sequence OFF LOW MEDIUM HIGH Ring E RING touchpad controls the brilliance of the range rings Fach time the touchpad is pressed the brilliance of the range rings changes in the following s guence OFF LOW MEDIUM HIGH Mark to UN S The MARK 1 touctp d controls the brightness of the VRM EBL North Mark and Guard Zone in OFF LOW MEDIUM HIGH intensity levels Panel The PANEL DIM touchpad may be used to adjust the brilliance of the control panels EE PRESENTATION MODE SELECTION The SELECT touchpad is used to select the presentation mode There are either three or four modes selectable Head up Head up CG North up Course up depending on whether the cursor gyro program is fitted or not time the touchpad is pressed the mode changes in the following sequence with cursor gyro program without cursor gyro program
33. sea clutter 15 not experienced control is effective to a maximum of about 8 miles The proper setting of the A C SEA control is so that the clutter is broken up into small dots and small targets become distinguishable the control is not sufficiently advanced other targets will be hidden in the clutter while if it is set too high both sea clutter and targets will be erased from the screen As a general rule of tnumb turn the control clock wise until the clutter has disappeared leeward but a little is still visibie windward Always leave a little clutter visible on the screen this ensures weak echoes will not be suppressed If no clutter is visible on the screen leave the control in the fully counterclockwise position See clutter A T SEA SEA control adjusted control off Sea clutter reduced Fig 4 Adjusting the A C SEA Control Rain Clutter The echoes of ships operating inside rain hail or snowstorms may be hid den by on screen rain clutter Rain clutter is easily recognizable by its woot like appearance on screen When this type of interference obscures a large area of the Screen you can use the A C RAIN anti clutter rain control to reduce the clutter When the A C RAIN control is turned clockwise receiver sensitivity is suppressed to break up the clutter into small speckles Thus it may also be used in clear weather to separate groups of echoes a congested short range picture In all cases
34. 34 Ni T 220u 817 22080 nim 21 For ADJUST _ CONNECT ONS SETTING OF DIP SWITCH NOTE 52 3 J4 J5 NOTE PER SHR OD oe TO VAW mnes JUMPEN SIGNAL SYNCHRO OUTPUT DATA TRANSMISSION INTERVAL D 1 2 ae ea ALL RESISTANCE IN OHMS 1 4W AND CAPACITANCE reg 6050 25 200 5 IN FARADS UNLESS NOTED OTHERWISE 50 60 VnvIURUUMPT ICEUSPE F fe vott V 25 50 100 35 70 BY 7 NOTE 2 DRITE d 22000136 U SYNCHRO 2 PR OM EIER D 281 foot 1360 90 6 B60X 90X 36x CHANGE THE JUMPER CONNECTIONS SETTING 9 0 ON ONION OFF ON GC 1 2 6 SWITCH ACCORDING TO TYPE OF GYRO COMPASS Lm ee z orr fre or 2 REFER TABLES RIGHT c M 2 orroer Spt 102 71 NEJ TRAA CRE F T GYRO INTERFACE SUPPLIED FOR INSTALLATION MATERIALS pejoreoer orrlorrlore Wi FPADCY OBS nd SC AMER amp lk WITH USING EXTERNAL POWER FOR POSITIVE m 121 OMMON 3307 009 TL Hil 99 e e weve Wy
35. AGRAM 5 17 OUTLINE DRAWINGS 0 1 thru D 5 Radar Display Unit 0 1 Scanner Unit 10kW XN2 XN3 D 2 scanner Unit 10kW XN3A XNAA D 3 Transformer Unit RU 1758 RU 1803 D 4 Rectifier Unit RU 3423 D 5 SPECIFICATIONS The new FURUNO FR 2000 series radars are the product of many years of experience in radar design and manufacturing These rugged but attractive radars are equally at home on a hard working commercial vessel or the most elegant of large pleasure yachts Radar echoes are displayed in high contrast yellow orange on a bright 20 diagonal raster scan CRT easy viewing background color is operator selectable as either black for nighttime use or blue for daytime use Target detection is greatly enhanced by the use of innovative features such as Echo Stretch Echo Average and the built in Interference Rejector Electronic aids such as the calculation of CPA Echo Plotting plus Speed range and bearing to selected targets give the operator the ability to assess dangerous situations quickly and accurately The logical arrangement of backlit tactile touchpads rotary controls and a joystick make the FR 2000 series radars easy and intuitive to use Like
36. MBD J445 at ewe 411700 21412932 ONNAN 7 5 820 9 FS 0 08 NOIL2310Hd H3MOd JY 1 36 XL 8 12409 4 88515 4 95 0 18 23135 80615 v PX au Wd 49 30 3259 25 2 MS NOILONNS 4 S 4 0 44 4 88615 X6 NS 225 24 SH 258 O 5 5 CB TOT ASt n y men T E9 Ene 1905 18 191 89 Ano 21 e um AINO bd 1 tdl 1 a ue 9 55 94561 1334 Ob V0 X 3 p ail 4 500718 1 VO 813 32 62729 15 10 03100 5521 50 30 NI 9 11244412 ONY M9 i SHHO NI 151538 TIY c W L S QUEM ALON 18245188 t De 1 3 T 293 ys 9 885151 6 gt GH 0 19 70 J a 491 001 944 89 105 0 i teu 0 Do d E 9 184 885151 zbug 883 TIT gt 2 00915 50902 52 02 10902 0800 0202 95 5 531835 0091 23 531835 009 83 531 35 0082 4 84 1202 1 02 1002 10202 10102 50602 0202 0102 83 3 ONNEEN RT 5086 Gl lt lt lt
37. MICROFARADS UNLESS NOTED OTHERWISE 2 240cm 2 SCCSM amp 0 fto3 it SC INV R C21 C22 CR33 CTG22R 8200 8200 7 7400 7400 RC7134 a7 R21 822 MUST CONNECTED AS FLLOWS CR31 CR34 CRIS _ _ 25798 25 79811 CTB 34M FOR 240cm RADIATOR SC SM i FOR OTHERS SC INV gt N2 val v2 EN R19 2016 at C17 pel 1B 020707070 Carer Oar Sere 82k 2820 82072520 2 cup v3 750V 50V 50 131 Ph 5 0612 205 K31 gt 1 X 45V RADAR ARPA _ LL LLL non 2 T 2 5 IRADAR ARPA 3 gt 3 5 RADAR ARPA JV 3 32 SCEA 4 745 RADAR ARPA R3 01 i i 5 5 00 25 733 2 2032 1576 R32 6 X GND 222 83 T 33 1000 47 28 1 7 19 T i aaa 023 10 K33 SCD amp A 2 7 gt m GND 5 9 R7 CR36
38. aterline MAXIMUM RANGE The maximum detecting range of the radar Rmax varies considerably depending upon several factors such as the height of the antenna above the waterline the height of the target above the sea the size shape and material of the target and the atmospheric conditions Under normal atmospheric conditions the maximum range is equal to the radar horizon or a little shorter The radar horizon is longer than the optical one by about 6 because of the diffraction property of the radar Signal The Rmax is given in the following equation Rmax 2 2 x V hl h2 where Rmax radar horizon nm hl antenna height m h2 target height horizontal 22 earth s Tine surface Fig 22 Radar Horizon For example if the height of the antenna above the waterline is 9 meters and the height of the target is 16 meters the maximum radar range 15 Rmax 2 2 x V9 16 2 2 x 3 4 15 4 nm 23 RADAR RESOLUTION BEARING RESOLUTION Bearing resolution is the ability to display as separate pips the echoes received from two targets which are at the same range and close together It is proportional to the antenna length and reciprocally proportional to the wavelength length of the antenna radiator should be chosen for bearing resolution better than 2 5 IMO Resolution This condition is nor mally satisfied with a radiator larger than 1 2 m 4 ft RANGE RESOLUTION Range reso
39. ble ange 1 14 5 RM Cursor Data from top R B from own ship to cursor elapsed time page 9 range to plot mark bearing to plot mark Cursor rel course of target page 9 rel speed of target Closest point of Gyro Bearing approach CPA page 17 time to closest point of approach Zone vector length time page fio Plot Mark EBL page 13 page 9 EUM 220 AMI North Mark BL NOL page 7 EBL Readout page 9 N VRM Readout VRM page 8 Headinq Marker page 8 page 5 NOTE EBL No 2 and VRM No 2 are not provided for N type version FIGURE 21 LOCATION OF MARKERS LEGENDS amp ANNUNCIATORS 22 In this section minimum and maximum ranges radar resolution range measure ment false echoes and radar plotting are discussed pmmndtit MINIMUM AND MAXIMUM RANGES sw s H IH MINIMUM RANGE When the radar is used as a collision avoidance aid the minimum detection range is of urgent concern It is very dangerous for a target to disappear when it approaches the ship The minimum range is primarily determined by the height of the antenna vertical beam width of antenna above the w
40. cted When the heading mark or north mark masks or hinders recognition of a small target echo press and hold the HM OFF touchpad to temporarily erase them Release hold to redisplay them DISPLAY COLOR SELECTION The display color can be changed as follows by pressing the COLOR touch pad Select the color scheme which best suits your needs FURUNO RANGE AND BEARING MEASUREMENT _ The range to a target may be measured with the range rings or a Range Marker and the bearing of a target may be measured with Electronic Bearing Line EBL Selection and operation of the VRM and EBL markers are quite simpie At each bottom corner of the display unit there is touchpad control EBL ON OFF on the left corner and VRM ON OFF on the r ght corner and a rotary knob Each rotary knob operates two markers VRM No 1 or VRM No 2 or EBL No 1 or EBL 2 To display marker press an touchpad time the touchpad 15 pressed the marker operative by the rotary knob control is circumscribed at the bottom left EBL or bottom right VRM of the screen When use of a marker is not required you can erase it by pressing the associated OFF touchpad If two like markers are displayed when the OFF touchpad is pressed the inoperative marker is erased Marker differentiation s made by making the lengths of the dash on the No 1 markers shorter than those of the No 2 markers NOTE For N t
41. cted should provide arcs with angles of cut as close to 90 as possible Small isolated radar conspicuous fixed objects whose associated range arcs intersect at angles approaching 90 provide the most reliable and accurate position fixes Objects at longer ranges are less accurate for position fixing because they may be below the radar horizon and because the width of the radar beam increases with range To fix your position first measure the range to two or more prominent navi gational marks which you can identify on the chart Next with a compass sweep out the ranges from the charted positions ihe point of intersection of the arcs is your estimated position target B 5 N 4 ES AN 47 W Fig 27 Position Fixing Using Range RANGE AND BEARING The advantage of position fixing by range and bearing is the speed with which a fix can be obtained A distinct disadvantage however is that this method is based upon only two intersecting position lines a bearing line and range obtained from two points of land possible the object used should be small isolated and identified with reasonable certainty 27 fix your position using range and radar bearing measure the relative bearing of the target with the EBL noting the exact direction of the ship s heading when doing so Next make allowance for compass deviation true or magnetic and find the true bearing of the target Sweep out the range to the target with a compass
42. de 2 Press the VRM ON touchpad to display VRM No 1 Rotate the VRM rotary knob control to set the outer margin of the guard zone Press VRM ON again and adjust the VRM rotary knob for setting with VRM No 2 the inner margin of the alarm 3 Press the EBL touchpad to display EBL No 1 Rotate the EBL rotary knob control to set one of the sector margins The guard sector is toward the right side of this EBL when viewed from the center Press the EBL ON touchpad again and adjust the EBL rotary knob to set the other sector margin The guard sector is toward the left of this margin when viewed from the center 4 Press the SET RESET touchpad The annunciator GUARD is display at upper side of the screen GUARD ZONE Fig 13 Guard Zone lla 5 Should the alarm sound it can be stopped by pressing the touchpad Press the touchpad once again to reactivate the alarm 6 To change or erase the guard zone keep the SET RESET touchpad pressed for more than one second Atarm Usage Caution The alarm is given to the targets having a certain level of echo strength This level does not always imply a landmass reef ships or other surface target but can mean returns from sea surface or precipitation As the level 15 changeable with the environment the operator is required to properly adjust the gain and anti clutter controls It should be noted that excessively high position of A C controls can fail in alerti
43. depressed the level of suppression changes in the following sequence Note that Level 3 does not provide corre lation but picks up the peak level among several strobes in a frame This level is useful for tracking a target echo masked by short range sea clutter ECHO AVR1 ECHO AVR2 gt ECHO AVR3 OFF 2 frames 4 frames peak within strobes on a pixel A sea clutter B Echo Averaging ON Echo Averaging OFF sea clutter reduced Fig 17 Echo Averaging Echo Average Usage Cautions Echo average should not be used under the following conditions e speed difference between own ship and other ships is large in Head up Mode level 3 may be used in the Head up Mode own ship is being subjected to heavy pitching and rolling 15 STRETCH long ranges the echoes of targets are displayed only as small pips making them difficult to see enhance target video on these ranges press the LECHO STRETCH touchpad annunciator ECHO STR appears at the top of the screen The echo stretch function is effective when the pulselength is 0 3us or longer 1 on the 3nm and longer ranges when the FUNCTION Switch is set at SHORT pulse the 0 75 nm and longer ranges at LONG pulse Should you press the touchpad on a range where the echo stretch is ineffective the annunciator ECHO STR appears in inversed video at the top of the screen Caution T he echo s
44. e Limiter 3 DISPLAY UNIT 1 Indication System PPI daylight display 2 Picture Tube 20 diagonal high resolution color CRT Cos psposs sp 218167 Minimum Range less than 25m Display Mode Relative Motion Head up North upt Course upf True Motion By Video Plotter RP 2 optional 3 Range 4 Range Ring Interval 5 Number of Rings C t 55 required 8 Bearing Resolution within 2 59 9 Bearing Accuracy better than 1 0 10 Range Discrimination better than 20m on 0 25nm scale 11 VRM Range Ring Accuracy 0 8 or m whichever is greater 4 ENVIRONMENTAL CONDITIONS 1 Ambient Temperature Scanner Unit 25 C to 70 Display Unit 15 C to 55 C 2 Humidity Relative Humidity 95 40 C 5 POWER REQUIREMENTS 24 32NDC 220W 24VDC 100 110 115VAC 320VA 100 50 60Hz 14 rectifier required 220 440VAC transformer required 6 COLOR Scanner Unit Munsell N9 5 Display Unit Panel N3 0 newtone No 5 Chassis 2 5GY5 1 5 embossed T25 COMPLETE SET Remarks Scanner Unit XN2 C2P7N2N 016 31 123cm flat XN3 C2P7N2N 016 200 flat XN3A C2P7N2N 016 35 200cm oval XNA4A C2P7N2N 016 37 240 oval Sew fae Installation 000 04100 ant cable 25m code no 000 082 958 CPO3 ant cable 30 1 set code no 000 082 959 CPO3 ant cable 40 code n
45. e in good working order original state when monitor was tuned the innermost arc should appear at a range of 12 with a total of 4 arcs The range of the innermost arc reduces per every 3db deterioration in the transmitted power The receiver sensitivity can be evaluated by counting the number of arcs see both the table below and Fig 19 on the next page Monitoring the transmitter 10 4 Monitoring the receiver KENN 12 19 TRANSMITTER NORMAL RECEIVER NORMAL Note TRANSMITTER 3 dB loss Transmitter system has lost haif the initial power Suspect the magnetron and feeder RECEIVER NORMAL TRANSMITTER 3 dB loss Transmitter system has lost half the initial power Suspect the magnetron and feeder system RECEIVER 3 dB loss Receiver system has lost half the normal sensitivity Suspect receiver front end water ingress to the feeder system etc Fig 19 Performance Monitor Display When the DIP Switch S3 4 on the A D CONV Board is not set up for perfor mance monitor usage the FUNCTION switch will not automatically set the range to 24nm in this case manually set the range to 24 nm 20 20 DATA G MODE SET LOCATION AND FUNCTION OF OPERATING CONTROLS POWER switch This switch turns the power on and off
46. ector The vectors emain unchanged without being updated automatically therefore care should be taken to clear less important target vectors Vector length which 1s selectable by an internal DIP switch see page AP1 1 is shown in the plot data table at the top of the screen CANCELLING PLOTS Individual Press corresponding symbol CANCEL An Press LALL 1 When the presentation mode is changed or when the RESET touchpad is pressed in the Course up Mode the past plots and vectors are all erased automatically 13 PLOT DATA TABLE The plot data display table an example of which is shown below shows data about plotted targets and is located at the upper right side of the screen Timer The time shown is the time elapsed from the last plot entry Range Bearing to Plot Mark Range and bearing to the last entered plot mark are indicated The bearing indication is relative to ship s head in the Head up Mode true relative to North in the North up and Course up Modes Course Speed of Plotted Target Course and speed of last plotted target are CIE displayed The displayed speed and course are always relative to own ship and suffixed TIME 1190 with R Note that these indications are not updated during plot intervals BRG 255 R AJ CSE CPA TCPA SPD CPA 03 Closest Point of Approach and Time of TCPA 98 Approach
47. for a few minutes until the high voltage components CRT or HV capacitors can discharge the residual charge Exposed nuts Check for corroded or Sealing compound may and bolts on loosened nuts bolts be used instead of scanner unit necessary clean them paint and repaint thickly Replace them if heavily corroded Put slight amount of grease if nuts and bolts are replaced Check for dirt or cracks on the radiator surface Thick dirt should be wiped off by using a soft cloth immersed in fresh water If a crack is found apply a slight amount of sealing compound or adhesive as first aid treatment then call for repair Scanner radiator Do NOT use plastic solvent acetone for cleaning 3 to 6 months If removing ice on the scanner unit use a wooden hammer or plastic head hammer Crack on the unit may cause water ingression causing permanent damage to the circuits inside Terminal boards and plugs in scanner unit pen scanner cover to check terminal board plug connections inside Also check if the rubber packing of the scanner cover is in good order When putting cover back in position be careful not to catch flying wires between cover and unit Use a soft cloth with a slight amount of anti static charge spray NEVER USE PLASTIC SOLVENT Dirt on
48. g 8 North Up Mode Display t gyrocompass required FURUNO Loss of Gyro Signal When the gyro signal is lost the presentation mode automatically becomes HEAD UP and the legend GYRO as well as the gyro readout flashes They continue to flash even when the gyro signal is recovered to warn the operator that the readout is unreliable If this occurs check the on screen gyro indication it is wrong align the gyro interface see page 17 and press the SELECT touchpad to stop the flashing If you wish to select a presentation mode other than Head up further press the SELECT touchpad until the desired mode is obtained REDUCING RADAR INTERFERENCE Radar interference may occur when in the vicinity of another shipborne radar operating in the same frequency band It appears on the screen often as a large number of bright dots either scat tered at random or in the form of curved spokes see Fig 9 This type of interference can be reduced by acti vating the Interference Rejector cir cuit Press the INT REJECT touchpad to activate the circuit The IR symbol appears at the screen top Press the touchpad again to switch off the circuit when no interference exists otherwise weak targets may be missed Fig 9 Radar Interference radar ERASING THE HEADING MARK NORTH MARK When the radar is turned on the heading mark is displayed north mark is also displayed if gyrocompass is conne
49. g an appropriate pulselength with the FUNCTION switch As a general rule of thumb use the short pulse when target discrimination is required and use the long pulse when range is important Shortly after a pulselength is selected the display screen lights up and any echoes received from targets are displayed on the screen If the FUNCTION switch is set to a pulselength setting during the 3 minute warm up period TX appears below the timer indication and the radar will begin transmitting immediately at 0 00 To temporarily suspend transmission set the FUNCTION switch to ST BY RANGE SELECTION The RANGE touchpads J are used to select the RANGE The range selected determines automatically the fixed range ring interval Press the touchpad to increase the range or press the touchpad to lower the range The range selected and the range ring interval are indicated at the upper left hand corner on the screen TUNE CONTROL ADJUSTMENT The TUNE control is used to tune the receiver the first 10 minutes of operation the tuning should be checked periodically because the transmitter has not stabilized yet Readjustment after the first 10 minutes is normally not required Tuning is made easy by the use of the tuning bar provided at the upper right hand side of the yar display screen The TUNE control is so adjusted to display the longest tuning bar To tune the receiver first turn the A C SEA control fully counterclockwise a
50. i i Med 2698 lt i abc i BUZZER _ _ BH BPCT 5141 5 E an T 12 8 9 L 1 AM m oe 7 lt Th 7 P e M 22722 i Pat 1 _ 5 11 E 2 a 93 355 9 AL 00 iv DM H 43 Lx 10 lt 4 1 PERFORMANCE d 2 m 2492 MEME L J m 1 gt 55 2 H t 1 amm 4 o e lt 1 r 7 1 LOG C 5 9 CTB 7144 1474 Plotter E 154 t SPEED LOG FAN MOTOR M gt 25185 gt e v 31 3 1 1 lt 32abt lt 55 35 5 PLAT 1493 1 o _ 197 ______ 2 5 5 7139 11 EE 5 77 1 y 3 5 3 ar 1 TON REA 5 2 E ah Lili m KAT 539 a isle A AA 7 2 2 106 D SC i m 3 y K 5 H 5 919 631 a oe a
51. igator assess marine traffic conditions These functions are however easy to access due to the functional and logical arrangement of the front panel controls If you change control setting you will see the associated reaction almost immediately on the screen Key operation is confirmed by a tone while unacceptable key entry is communicated by a series of beep tones A brief explanation of the function and location of each control and the location of legends annunciators etc is given on pages 21 and 22 BASIC OPERATION TURNING THE POWER QN amp TRANSMITTING THE RADAR After having confirmed that there are no obstructions around the scanner turn the POWER and SCANNER switches to ON in the sub panel The scanner switch is located It may be permanently set to ON DIP switch settings program no the results of the self check total on time total TX time and the 3 minute timer are displayed see Fig 1 The 3 minute timer begins counting down from 3 00 to 0 00 whereupon it changes to ST BY indicating the radar is ready to transmit BEN if total on time and total TX time Fig 1 3 minute timer DIP Switch Settings C gt 3 minutes after power is applied Program No and results of self test Display Screen During Warm up 1 ST 8Y Period When the message 5 appears on the screen the radar may be transmitted by selectin
52. in ST BY select pulselength and enable checking by the performance monitor BRILLIANCE contro This contro adjusts the brilliance of the CRT TUNE contro This control tunes the receiver adjust it to display the longest tuning bar A C RAIN control Rain snow returns may be suppressed with this control SEA contro Sea surface returns may be suppressed with this control GAIN control This control adjusts receiver sensitivity JOYSTICK or This contro maneuvers the cross hair cursor GUARD ZONE PLOT Im m V R M RANGE 45 gt SET PLOT touchpads When these touchpads are pressed in the plot mode the corresponding symbol is displayed on the screen ALL touchpad This touchpad is used to erase the plot PLOT touchpad This touchpad when pressed activates the Plot Mode CANCEL touchpad This touchpad may be pressed to cancel plotting of individual targets or in com bination with the ALL touchpad all targets JS DATA touchpad This touchpad if pressed when the cursor is displayed turns on and off the joystick data table at the upper left hand side of the screen ACKM touchpad This touchpad may be pressed to tem porarily deactivate reactivate the guard zone SET RESET touchpad Press this touchpad to enable setting and resetting of the guard zo
53. lution is the ability to display as separate pips the echoes received from two targets which are on the same bearing and close to each other This is determined by pulselength only usual discrimination range is 22 8 m 25 yd on a 0 08 microsecond pulse BEARING ACCURACY One of the most important features of the radar is how accurately the bearing of the target can be measured accuracy of bearing measurement basically depends on the narrowness of the radar beam However the bearing is usually taken relative to the ship s heading and thus proper adjustment of the heading marker at installation is an important factor in ensuring bearing accuracy To minimize error when measuring the bearing of a target put the target echo at the extreme position on the scneen by selecting a suitable range RANGE MEASUREMENT Measurement of the range to a target 15 also a very important function of the radar Generally there are two means of measuring range the fixed range rings and the variable range marker VRM The fixed range rings appear on the screen with a predetermined interval and provide a rough esti mate of the range to a target The variable range marker s diameter is increased or decreased so that the marker touches the inner edge of the target allowing the operator to obtain more accurate range measurements 24 m FALSE ECHOES
54. me range as shown in Fig 25 Side lobes show usually only on short ranges and from strong targets They can be reduced through careful reduction of the gain or proper adjustment of the A C SEA control 9 TARGETB 4 SPURIOUS B TRUE TARGET B Fig 25 Sidelobe Echoes VIRTUAL IMAGE A relatively large target close to your ship may be represented at two posi tions on the screen One of them is the true echo directly reflected by the target and the other is a false echo which is caused by the mirror effect of a large object on or close to your ship as shown in Fig 26 If your ship comes close to a large metallic bridge for example such a false echo may temporarily be seen on the screen I ZI an TARGET OWN SHIP 5i SPURIOUS Fig 26 Virtual Image 26 POSITION FIXING WITH RADAR RADAR RANGE The simultaneous measurement of the ranges to two or more fixed objects is normally the most accurate method of obtaining a fix with radar alone Preferably at least three ranges should be used However the use of more than three range arcs may introduce excessive error because of the time lag between measurements i e you will be moving as you take successive measurements When obtaining a fix it is best to measure the most rapidly changing range last because of a smaller time lag in the radar plot from the ship s actual position For greater accuracy the objects sele
55. nd set the range to maximum Turn the TUNE control between its extremes until the longest tuning bar between 4 and 5 tuning markers is obtained Fig 2 Tuning Bar GAIN CONTROL ADJUSTMENT The GAIN control is used to adjust the sensitivity of the receiver and thus the strength of echoes as they appear on the screen It is adjusted so that the speckled noise background is just visible on the CRT To properly set the gain first select one of the two longest ranges the speckled background is more apparent on long ranges Turn the GAIN control clockwise slowly you should be abTe to see the speckled background appear when the position of the contro is between 2 and 3 o clock If you set up for too little gain weak echoes may be missed If you turn the control too far clockwise yieldinq too much speckled noise background targets may be missed because of the poor contrast between desired echoes and the background noise on the display too high 8 proper C too low Fig 3 Gain Control Adjustment ELIMINATING RETURNS FROM SEA SURFACE AND RAIN CLUTTER Sea Returns returns appear on the screen a large number of small echoes see Fig 4 which might affect radar performance action of the SEA circuit is to reduce the amplification of echoes at short ranges where clutter is the greatest and progressively increase amplification as the range increases so that amplification will be normal at those ranges where
56. ne OFF touchpad This touchpad may be used to erase VRM ON touchpad Press this touchpad to display VRM ROTARY knob control Rotate this control to maneuver the VRMs COLOR touchpad Display color scheme may be selected with this touchpad SHIFT touchpad Pressing this key offsets the sweep origin within 50 of the range of the use A C AUTO touchpad Automatic suppression of returns from sea surface and or rain clutter can be done with this touchpad INT REJECT touchpad This touchpad enables disables the inter ference rejecting circuit ECHO AVERAGE touchpad Sea surface returns can be suppressed in three levels by this touchpad ECHO STRETCH touchpad Press this touchpad on jong ranges to enhance target detection ability HM OFF touchpad Press and hold this touchpad to erase the heading marker and north marker Release hold to redisplay them RANGE SELECTION touchpads These two touchpads select range 21 Display Annunciators from left Cursor Gyro page 5 Pulselength page 2 Performance Monitor ON page 19 Alarm Acknowledge page 11 Alarm Guard Zone page 10 Shift Off center Display ON page 12 Automatic Clutter Suppression ON page 4 Interference Rejector ON page 7 Echo Averaging ON page 14 Echo Stretch ON page 16 Tuning Bar Presentation Mode page 2 page 5 5 J HEAD UP RANGE 72NM B TE anos RANGE ne Plot Data Ta
57. ng small targets Operating Procedure for N type version 1 2 3 Press the SET RESET touchpad to enter the guard zone setting mode Press the VRM touchpad to display VRM and then adjust the VRM control to set the outer margin of the guard zone If you set the VRM reading to above 6 miles the outer margin will be set to 6 miles maximum limit If the VRM reading is set to 1655 than 3 5 miles or VRM 15 not displayed VRM off the inner margin of the guard zone will be set to 3 miles minimum limit Press the EBL ON touchpad if the EBL is not displayed and then adjust the EBL contro to set the left margin of the guard zone Press the EBL ON touchpad again to display the 2nd EBL which is indicated by long dash line Adjust the EBL contro to set the right margin of the guard zone EBL readout for the 2nd EBL is displayed below the ist EBL readout Thereafter each time the EBL ON touchpad is pressed the valid EBL changes between 1st and 2nd EBL s If the sector margin is not set that is no EBL displayed the guard zone will be of circle doughnut shaped appearance Press the SET RESET touchpad annunciator GUARD is displayed at upper side of the screen Should the alarm sound it can be stopped by pressing the ACKN touchpad Press the touchpad again to reactivate the alarm To change or erase the guard zone keep the SET RESET touchpad pressed for more than 1 second 119 FURUNO OFF
58. not synchronized with the gyrocompass When the external A D Converter AD 10S is used the adjustment is made on its front panel 1 Press the HOLD switch to disconnect the computing circuit form the gyro compass 2 Press the UP or DOWN switch until the compass reading is duplicated at the top of the bearing scale on the screen 3 Press the HOLD switch again to engage the radar circuit with the gyrocom pass HOLD lamp will go off If the gyro reading on the screen deviates from the compass reading adjust it with the UP or DOWN switch CHECK METER Magnetron current MIC detecting current and output voltage of power supplies can be checked with the check meter Position of Normal Reading Selector Switch on Check Meter MAG C magnetron current TUN tuning status DI M MIC detecting current 12V output voltage 12V l t 48 mile range transmit 5V ting all others 0 25 mile range stand by 17 PRESET POTENTIOMETERS Preset potentiometers are provided for coarse tuning VR461 tuning A C SEA VR462 and eliminating main bang VR463 Note that VR464 is not used Coarse Tuning 461 Whenever the magnetron and or MIC is replaced adjustment of this poten tiometer is required Proper tuning should be obtained with the TUNE control set at its mid travel position 1 Set the TUNE control to the mid position and then transmit the radar on the 48 mile range 2 Turn VR461 fully clockwise slowly re
59. o 000 082 960 ant cable 15 code no 000 082 994 Materials shipped disassembled 2 select one of four lengths of antenna cable 30m standard 111 ACCESSORIES 02400 Code 000 081 046 03 027 0401 100 082 460 y 2 Hood Assembly 03 026 1601 100 073 600 Blind Cap 03 003 0032 0 300 303 020 INSTALLATION MATERIALS De ee os m 1 Crimp on Lug FV2 4 blue 000 538 118 1 inner shield of sig cable Crimp on Lug FV1 25 L3 000 538 111 cable Crimp on Lug 320882 000 537 110 1 wire of 510 BETIS M12 SUS304 000 863 112 6 Flat Washer M12 SUS304 000 864 132 mounting MI2 505304 000 864 263 4 scanner housing 03 001 3001 0 300 130 010 Corrosion 1 proof Rubber 10 Grounding 1 grounding Wire Scanner unit 11 Hexagon Bolt 25 505304 000 862 180 Hexagon Nut M6 515304 000 863 109 1 Flat Washer M6 505304 000 864 129 000 566 000 earth bolt Display Unit Code Lo CVV S 8 2 2 Crimp on Lug 000 538 118 Crimp on Lug FV5 5 S3 000 538 120 in ck Hexagon Nut C2 00W MBNI2 000 863 204 cere SPARE PARTS SP03 03300 Code
60. on the chart and plot the true bearing of the target The point of intersection is your approximate position ship s heading Se X true bearing target Fig 28 Position Fixing Using Range and Bearing TWO BEARINGS Generally fixes obtained from radar bearing are less accurate than those obtained from intersecting range arcs accuracy of fixing by this method is greater when the center bearings of small isolated radar conspicuous objects can be observed Similar to position fixing using range and bearing this method affords a quick means for initially determining approximate position The position should then be checked against other means to confirm reliability Position fixing using two bearings is determined by measuring the relative bearings for the two targets and then determining their true bearings Plot the two bearings on the chart the point of intersection of the two bearings 15 your approximate position ship s 24 true bearing heading of target true bearing of target B 1 Fig 29 Position Fixing Using Two Bearings 28 MAINTENANCE Good performance depends on regular maintenance Following the recommended maintenance checks prescribed in this section will not only prevent unex pected malfunctions but will also lengthen equipment life Before beginning maintenance work be sure to switch off the radar at the main switchboard When checking inside the units wait
61. p 171 9V COLD B BLU GND 16 t 1 12V B WHT t AUTO PLOT rie PULSEW1 GRY 1 1 E i 2476 19 Lt GND YEL 8 GRN 19 5 TRIG 20 L I GND B L GRN 20 gt Lt HEADING PPL 215 Jay P477 722 BEARING WHT H 9 22 gt THEO VIDEO 23 MOTOR RED 23 5 24 MOTOR B RED 3 24 5 1478 P478 t it 25 r1 BLK HE 25 gt 2479 2479 26 bd it B 1 gt 212 4 28 1 28 gt D GND E EXE RECTIFIER ___ 1 5 REPEATER rs 2 Pg i gt 7 75 512 NOTES i OND 2807 __ p201 7 1201 4 gt 5 ez 24V DC OUT 5 mM 1 1 1 ___ 250 0 35 ________ 1 1 42222222 250VDPYCY 35 ___________ L PCT 5141 660V DPYCY 3 5 17 a J 440 560V DINE TIO __ TLLUTTAT T RU 7803 1771 250v DPYCY 35 T 220VAC COAT RUMP 177 XFORMER 100 110 115 52504 35 24 32NDC 777777777777 17777575555 54757 47 5 24 ONLY 052599 R1 COM 1498 498 1 S en GYRO I F EXTERNAL r 7 T38VVMPYGSS 5 7 CG 4137 122 7 BUZZER m 250V MPYCS 5 2 2
62. p B3 HOLD LED 52 52 7 ES pb 5 35 PA 6 gt gt gt 21212 Gel 08 um fun DET 700 27272 BAER Disa T 0158 1 0 C exl e S VEE CRO 72 5 iii 4129 4 9 SELT 5 3 5129 7 812 IER m POWFIL R57 990 510 HLDL i 4 111241086 1k EAS AU 9 209 gt 3 14 15 09 51519212 CR23 28 14 216 52 gt a 16 11841012 I 2 1 1 gt CLK C 91 VEE 33 53 af 13 P2151 T R22 2 8 5 L3 R9 gy 3 XDATA R1 2 ov 5 7 89 8 5 54 DATA Q JA 200 5 9839 40 10 25ms IN 1 ACLK C NOTE aa 13839189 NOTE 4 2 RT 6829 5 R36 12 82 3 7 C 0220 400V C414 9 EE EET CHE gt 8 H 0 0 0220 400V ILITI 1 2 25 uP CT 005H 42 44 C45 51 1 ACLK C 5 2 CLK H CASIS GND 29 R51 58 3300 4 3 JOATA 0 47 5 5 2 CRAB 35 12 6V y 2 H 191588 1 50 12 VR1 2k 6V 2 0 11 C48 5V VEE 270 REG 10k L C37 HE
63. sembly Deflection Board etc Picture synchronization is abnormal Continued 33 Adjust GAIN contro with A C SEA control set at minimum Marks and l IF amplifier legends appear but no noise nor echo Check continuity and isolation of coaxia cable Note Disconnect the plug and lugs at both ends of coaxial cable before checking it by ohmmeter 2 Multicore cable between the scanner and display 3 Video Amplifier Board If fuse is blown replace it If it blows again the magnetron or modulator circuit may be faulty Marks legends and noise appear but no echo No transmission leak appears Check magnetron current with the check meter in the sub panel 2 Magnetron 3 MODULATOR board 4 MODULATOR TRIGGER board 5 Modulator SCR 6 A D Board 7 Memory Board 1 Bearing Signal Generator Board Scanner unit Sweep rotation is not synchro nized with antenna rotation 2 A D Board 1 A D Board The message NO HD appears on the screen when heading pulse is not received during ST BY Abnormal bearing of picture 2 Memory Board 3 Gyro Interface Board Continued 34 Adjust TUNE With the radar trans control mitting on the 48nm range check magnetron current with the check
64. the SHIFT touchpad again N type 1 2 Make sure that the radar is set to the head up mode Press the SHIFT touchpad The sweep origin will be offset by 50 of the range in use to the stern side pro viding an extended forward view 3 To cancel off centering press the SHIFT touchpad again 12 X f T i DE T 1 4 17 a JA UY v 50 ofradius 42 side t 5 x i TIO c Toa Irem n PLOTTING The track of up to 10 operator selected targets can be plotted manually pro viding the operator with a history of target movement Five plots target are available on a first in first out basis 1 Display the cursor if it is not already IND Select a plotting symbol with the PLOT Press the PLOT touchpad wait at least displayed Superimpose the cursor on the target desired by operating the joystick or trackball touchpads The selected symbol 15 displayed in pink 30 seconds place the cursor on the same target select symbol and press the PLOT touchpad If the touchpad is pressed within 3 seconds plotting is cancelled For plotting other targets repeat the Fig 15 Plot Display procedure and will be indicated with a vector on the target Target Vector Trend of motion of each plotted target is shown by a v
65. trations and customers two versions of these radars ava lable Regular or N type Fundamental performance is identical but operational arrangement is different on some points as follows EBL 2 2 EBLs when setting guard zone Guard Zone Outer imit inner Free range and sector limit 3nm width of guard zone fixed to 0 5nm Free sector Offcenter Shift The sweep origin is shifted To any position within to stern side 50X of the 50 of range selected range on head up mode only VRM unit NM or Selectable with panel keys KM can be changed to SM by internal DIP switch Floating EBL EBL origin can be maneuvered by joystick or trackball together with cursor Range marker on the EBL and VRM readout are always displayed regardless of whether VRM 15 on or off Floating EBL or offset EBL Offset EBL EBL origin can be shifted to cursor position but can not be maneuvered by joystick or trackball Range marker on the EBL and readout are displayed only when VRM is turned on Compliance Netherlands and Germany All other countries TABLE OF CONTENTS page SPECIFICATIONS 4 i thru vi SYSTEM CONFIGURATION vii OPERATIONAL OVERVIEW 1 thru 22 GENERAL
66. tretch function magnifies not only small target pips but also returns from sea surface and rain and radar interference For this reason make sure these types of interference are sufficiently suppressed before activating this function SUB PANEL a ed sub panel located at the front of the display unit contains various switches and controls see the Fig below not normally used in everyday operations Access to these controls may be made by pulling the knob on the sub panel window Potentiometers VR461 VR462 Antenna Switch VR463 Check Meter Fuses Check Meter Selector Switch 2 from top F3 F4 F5 ROM Card Receptacle Gyrocompass adjusting option controls _ UP 1 DOWN HOLD Fig 18 Sub Panel Controls 16 ANTENNA SWITCH This switch turns the scanner on and off It is normally set to ON ROM CARD RECEPTACLE The ROM card for use with the optional Video Plotter RP 2 may be placed here FUSES Fuses are provided to protect components from overcurrent Fl F2 Power line d10x38 10A AC 30A DC TX HV line 86 30 0 5 Antenna motor 6 30 5 F5 Performance Monitor 86 30 0 5A GYROCOMPASS ADJUSTING CONTROLS North up and Course up presentation modes require the compass signal in step by step or synchronous form This adjustment is required when the radar 15
67. turn it counterclockwise releasing hold when the longest tuning bar is displayed A C SEA VR462 If the A C SEA control is not providing sufficient sea return suppression adjust this control to increase its range 1 Transmit the radar on the 12 mile range Set up the following controls A C SEA fully clockwise A C RAIN fully counterclockwise IR OFF A C AUTO OFF 2 Adjust the GAIN so that a slight amount of noise is displayed on the screen 3 Adjust VR462 so that sea clutter 15 suppressed effectively maximum range 8 miles approximately MBS Main Bang Suppression VR463 When the main bang appears on the display it can be eliminated by adjusting this potentiometer 1 Set the range to 48 nm and after waiting 10 minutes adjust the GAIN control so that a slight amount of noise is displayed on the screen 2 Set the range to 0 25 nm and adjust the A C SEA control to suppress sea clutter 3 Rotate VR463 stopping when the main bang disappears 18 __ FURUNO MENU NUM A a n PERFORMANCE MONITOR When the optional performance monitor is installed turning the FUNCTION switch to PERF M will automatically set the radar to the 24 mile range scale with the long pulse and several arcs will be displayed to the stern side opposite to the heading marker when the monitor is installed behind the radar antenna the radar transmitter and receiver ar
68. ty replace it or call for service not attempt further component check on any p c board Careless handling may perma nently damage the board CAUTION There are many high tension points in the radar system Take special care when approaching the following parts 1 Power supply circuit Display Unit 2 CRT circuit Display Unit 3 Modulator circuit Scanner Unit 4 Magnetron Scanner Unit 32 Turn Power Panel does not 1 Blown power Measure mains on and light up at any fuse Fl F2 voltage at DT83 1 adjust panel touchpad setting and 3 brightness other than with OFF 2 Mains voltage DC Spec 20 4 to 40VDC PANEL DIM polarity AC Spec 100 110 115 touchpad VAC 10 3 Power Supply Board Illumination lamps Adjust CRT BRILLIANCE control If CRT heater is lit CRT is normal Nothing appears on the display CRT Voltage Memory Board 1 Scanner Switch is OFF 2 Blown scanner fuse F4 5A 3 Scanner Motor Brushes 4 Scanner rotating mechanism jammed 5 Power supply circuit for scanner motor Scanner is not rotating The message NO BP is displayed when bearing pulse is not received during ST BY After ST BY appears begin trans mitting Marks etc are 1 A D Board not displayed 2 Memory Board 1 CRT as
69. use discretion when adjusting the control since advancing it too far clockwise may erase targets echoes from the screen rain squall A C RAIN contro A C RAIN control properly adjusted OFF Fig 5 Effect of the A C RAIN Control Automatic Clutter Control The A C AUTO anti clutter auto touchpad controls the video circuit which automatically Suppresses sea and rain clutters overriding the manual control for A C SEA and A C RAIN The ON OFF status of the circuit is indicated at the top of the screen It 15 recommended to set the manual A C SEA and RAIN controls at minimum or off position when A C AUTO is used even though the A C AUTO overrides them BRILLIANCE ADJUSTMENT Controls are provided to adjust the brilliance of the CRT alphanumeric annunciators legends etc Most brilliance controls touchpads are located at the left hand side of the display unit except for the CRT brilliance adjusting control which is located to the right of the FUNCTION switch Each brilliance adjusting touchpad provides three levels of brilliance low medium and high time one of these touchpads is pressed the brilliance changes in the aforementioned sequence 4 BRILLIANCE control adjusts CRT brightness Turn it clockwise to increase the intensity of the radar echo blips Adjust it so that radar echo blips may be observed clearly Heading Mark The touchpad may be used to adjust the brightness
70. ype version the No 2 VRM and EBL are not provided RANGE MEASUREMENT Press the ON touchpad to display VRM on the screen Next rotate the VRM rotary knob control until the circle described by the VRM just touches the inside edge of the target blip see Fig 10 range to the target is shown at the lower right hand corner of the screen VRM No 1 annunciator on top and 2 annunciator beiow it target blip VRM No 1 VRM No 2 Fig 10 Range Measurement with a VRM No 2 is for regular type only FURUNO VRM Measurement Unit Selection regular type only VRM readout may be displayed in either nm km or nm sm depending on the setting of an internal DIP switch for further details see page 1 1 To alternate between nm and km or nm and sm press the VRM ON touchpad while pressing and holding the HM OFF touchpad BEARING MEASUREMENT Press the EBL ON touchpad to display an EBL Then rotate the EBL rotary knob control until the EBL bisects the target blip see Fig 11 The rela tive bearing to the target from own ship is indicated at the lower left hand corner of the display screen EBL No 1 annunciator on top and EBL No 2 annun below it If the radar is interfaced with gyrocompass true and relative bearings can be alternated by pressing the TRU REL touchpad target EBL No 2 11 No 1 Fig 11 Measuring Bearing With an EBL
71. yro ROM program No 0357204 1xx for replacement of system proaram ROM U45 AD baord O3P7030 standard system progtram No 0357400 1xx without cursor vi SYSTEM CONFIGURATION 7 SCANNER UNIT Performance i W Photo 1550 P C Monitor PM 30 power required DPYCY 1 25 DISPLAY UNIT AC Spec DPYC 3 5 7 External Buzzer 100 110 115 21 t DC Spec 5 854 24 3206 177 72217272 240cm radiator must us 3 5 Rectifier be operated by 24VDC E DPYC 3 5 RU 3423 required when 240cm radiator is used with AC spec Slave Display _ CD 141 FMD 800 1 824840 ___ maximum of 2 Gyro Converter Connection with internal unit 60 2 _ _ external ARPA 4 from unit 5 Sy either one RW 5094 x 2 AD 105 A D MPYC 9 x i Converter ___ 5 from CO SPEVV SB C O 2X9P d if equipped with internal 20 5 58 0 0 2 5 Video Plotter 2 DPYC 1 25 _ _______ from speed equipped with internal log Auto Plotter ARP 2 yil FURUNO OPERATIONAL OVERVIEW GENERAL This radar is equipped with numerous functions which help the nav
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