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Table of contents 1. GENERAL ____________________________________________________ 1-1 1.1 Outline __________________________________________________________________ 1-1 1.2 Boards & Major Components ________________________________________________ 1-2 1.3 Specifications _____________________________________________________________ 1-3 2. BLOCK DESCRIPTION _________________________________________ 2-1 2.1 Overview _______________________________________________________________ 2-1 2.2 Display unit ______________________________________________________________ 2-2 1. Power Supply Circuit (PTU-9149) ___________________________________________ 2-3 2.
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4. MAINTENANCE _______________________________________________ 4-1 4.1 Remarks on Replacement of Major Parts _______________________________________ 4-1 4.2 Life Expectancy of Expendable Parts __________________________________________ 4-2 4.3 Menu List _______________________________________________________________ 4-3 5. TROUBLESHOOTING __________________________________________ 5-1 5.1 Outline _________________________________________________________________ 5-1 5.2 Troubleshooting Flow Charts ________________________________________________ 5-2 5.3 Message Indication ________________________________________________________ 5-15 Mechanical Parts List ______________________________________________ M-1 Mechanical Exploded View _________________________________________ D-1...
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The antenna unit uses a Log IF amplifier. The table below shows the major specifications of each model. The same program is installed on all models, but the menu setting through factory menu is different between the models. Functions FR-7062 FR-7112 FR-7252 Maximum Range...
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1.2 Boards & Major Components Board FR-7062 FR-7112 FR-7252 PROCESSOR Board SPU-9211 B POWER SUPPLY Board PTU-9149 PTU-9149 A FILTER Board FIL-9148 TX-HV Board HV-9017 B DISPLAY PANEL Board PNL-9150 D UNIT Trackball TB-9152 A INTERFACE Board INT-9234 INT-9240 Auto Plotter...
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1.3 Specifications SCANNER UNIT FR-7062 FR-7112 FR-7252 Radiator Type Slotted Waveguide Array Radiator Length 120 cm (XN12A) or 180 cm (XN13A) Horizontal Beamwidth 1.9 deg. (XN12A) or 1.2 deg. (XN13A) Vertical Beamwidth 22 deg. (XN12A/XN13A) Within +20 deg. to -24 dB or less (XN12A/XN13A) -20 deg.
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0.9 deg. or 8 m, whichever is the greater VRM Accuracy NMEA (two input): NMEA 0183 NMEA (two output): NMEA 0183 ($RATLL, $RARSD, $RATTM: ARP-10(option)) GYRO (output): FURUNO clock-serial (AD format) or NMEA 0183 (HDT, VHW, HDG, Input/Output Terminal HDM) External Buzzer (output): +12V source plus Open Collector...
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ENVIRONMENTAL CONDITIONS FR-7062 FR-7112 FR-7252 Scanner Unit -25 deg. to +70 deg. Ambient Temperature Display Unit -15 deg. to +55 deg. Humidity Relative humidity 95 % or less at +40 deg. Vibration IEC 945 FR7062- SME-6 POWER SUPPLY & POWER CONSUMPTION...
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Chapter 2. BLOCK DESCRIPTION 2.1 Overview The simplified block diagram of the system is illustrated below. Scanner Unit Display Unit Antenna ARP-10 TTM data Mag. HD, BP, Gyro/ Trigger, NMEA speed (not used) Video Mod. Processor HD, BP VIDEO Trigger RF Module Power Panel...
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2.2 Display Unit 1. Power supply Circuit (PTU-9205) Refer to the block diagram on page 2-3. The power supply circuit is basically consists of a main inverter and a sub inverter. The main inverter derives the isolated line voltages +12 V/ANT +12 V and -12 V/ANT -12 V from the main input. The sub inverter derives +5 V and +32 V from +12 V output of the main inverter.
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CONTRAST VOLTAGE(MAX:approx 5 V, MIN: approx 2 V VIDEO(GSC video) From U16 #10 ARPA VIDEO D/A CONV. F VT(MAX: 5 V, MIN: 1 V) FR-7062 manual tuning MAX: 11.9 V displayed, 13 V measured J104 J110 MIN: 1 V displayed, 2V measured TB XA TUNING CONT.
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Peak search: Tuning voltage (TUNING), Point @ in the figure below, is searched in the tuning voltage range 1 V to 12 V(FR-7062) or 5 V to 28 V(FR-7112/7252). Tuning indicator voltage (TUNNIG IND) is maximum at point @ .
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Manual tuning and adjustment are required when automatic tuning is abnormal (that is , low sensitiv- ity). The manual tuning voltage changes from 1 V to 12 V on FR-7062, and 5 V to 32 V on FR-7112/7252 at the steps of about 0.1 V.
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Video Adjustment The video adjustment is carried out through the Tune/video adjustment menu in the installation setup menu. The following describes the outline of the adjustment. (a) Main Bang suppression Level (MBS L) is set to 0. (b) EEPOT, U14 is set to minimum. (EEPOT initialization with U14 #7 of “L” level) (c) The EEPOT gets into step-up mode (U14 #2 is H) to measure output video level at each step.
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ANT SW Relay TX key TX: 0 V pressed ST-BY: 5 V MOTOR(+) To scanner motor TX: 12 V ST-BY: 0 V FR7062-SME-10C FR-7062/7112 SPU Board INT9240 Board PTU-9149 Board J203 J201 +12V J101 J103 ANT SW ANT SW Relay...
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3. ARP circuit (18P9002) The block diagram of the ARP Board is shown below. ARP Board (18P9002) CR1 (Blinks 1 sec) V821 (µPD70741GC-25) UART TARGET DATA(TTM: CURRENT LOOP) TX1H TRANSMIT TX1C UART Not USED RX1H (Factory use) RECEIVER RX1C TP6 (Factory use) TIMER (10ms) TP1, 9...
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Target acquisition Conditions for manual acquisition 1) Within 9 scans, the target must be detected near the cursor position. 2) Target echo must be smaller than land echo (800 m or less in the radial or circumferential direction) at the front end processor. 3) Target must be within acquisition area: 0.1 to 16 nm.
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ARP Self-test [Self test] Key test: Press each key and check on-screen indication lights ARP-10 TEST 1859027101xx SPEED NAV 0.0KT COURSE 287.6° TRIGGER VIDEO MIN-HIT 0003 SCAN-TIME 0250 MAN-ACQ AUTO-ACQ FE-DATA1 0217 FE-DATA2 0023 Program No : 0359146-1xx : OK : OK Hours in use 000026.6H...
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4. TTM data sentence format TTM data is output from J111 on the SPU board and NMEA1 I/O connector in the following format. Hardware: RS-232C(J111), Current loop(NMEA1 I/O connector) Software: NMEA 0183 (Ver 2.0) TTM: Tracked target message $RATTM, xx, x.x, x.x, a, x.x, x.x, a, x.x, x.x, a, c--c, a, a, a <CR><LF> FR7062-SME-09E 1.
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As a general rule of thumb, the radar requires better noise figure (NF) and better dynamic range. Both factors, however, are reciprocal. The NF affects long range performance, while the dynamic range dose short range performance. MIC w/RF amplifier: RU-9253/9371 (FR-7112/7252) MIC w/o RF amplifier: RU-9390 (FR-7062) DOBLE- IF OUT W.G.TO...
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2. Modulator PRINCIPLE OF FET SWITCHING MUTILATOR High voltage is charged into C through R while the magnetron is inactive. When the trigger is applied to the power MOS-FET, the FET turns on and the high voltage appears at the primary winding of the pulse transformer.
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MODULATOR BOARD 03P9239 for FR-7252 The purpose of this board is to drive a pulse transformer RT-9203. The drive circuit consists of eight MOSFETs Q23, Q28, Q33, Q38, Q43, Q48, Q53, and Q58. Drain current of the MOSFETs is determined by gate voltage and source resistors R23, R28, R33, R38, R43, R48, R53, and R58 (0.47 ohms, 1W).
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RFC Board 03P9238 for FR-7252 There are three regulators on this board: U11, Q21 and U21, and U31. Switching regulator U11 and associated parts produce a signal “V. TRIG” which controls magnetron current produced on the 03P9239. The output is adjusted by VR11 so that the magnetron current is 7.1 V to 7.3 V.
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Power Supply Board 03P9236 for FR-7112 2-21...
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2.4 Differences between PCBs 1. SPU Board (SPU-9211) This board is set at factory for use in the FR-7062. For use in the FR-7112 or 7252, change the factory menu as below. While pressing and holding down the GAIN (HM-OFF) control, press the [MENU] key five times to display the factory menu.
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There are two types of PTU-9149 board depending on the input voltage: PTU-9149 and PTU-9149A. Both boards are interchangeable if jumper settings are changed as below. PTU-9149 (for FR-7062/7112, input of 10.2 to 41.6 V) Jumper settings: 1-2, 3-4, 5-6, and 7-8 PTU-9149A (for FR-7252, input of 21.6 to 41.6 V)
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Chapter 3. ADJUSTMENT DANGER WARNING Do not set the radar to TRANSMIT with the scanner cover opened or with the an- there is radiation tenna disconnected. Not only the unit may be damaged, but also hazard. Stop the antenna through the menu, and connect the dummy antenna to the RF unit when transmitting.
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Unit, F F F F Fr r r r r ont Side of ont Side of ont Side of ont Side of V V V V V ie ie ie ie iew (FR-7062/7112/7252) w (FR-7062/7112/7252) w (FR-7062/7112/7252) w (FR-7062/7112/7252)
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18P9007 (Option) SPU-9211 SPU-9211 FR7062-SMJ-30 FR7062-SMJ-31 Inside of Display Unit, Right Side of View (FR-7062/7112) 18P9007 (Option) SPU-9211 SPU-9211 FR7062-SMJ-32 FR7062-SMJ-33 Inside of Display Unit, Right Side of View (FR-7252)
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PTU-9149 FR7062-SMJ-34 Inside of Display Unit, Left Side of View (FR-7062/7112/7252) CRT Board CRT Board HV-9017 FR7062-SMJ-37 FR7062-SMJ-36 Inside of Display Unit, Top Side of View Inside of Display Unit, Top Side of View (FR-7062/7112) (FR-7252)
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Location of parts on SPU-9211 J102 J107 J106 J119 J105 J110 J104 J103 J101 FR7062-SMJ-40 Test point on SPU-9211 Test Test Item Ratings Remarks Point TP1 BEARING 0.7 V pp (180 Hz, 450 pulses/rotation) 8 to 12 V (Neg. polarity, pulsewidth: 10 to 20 µs, TP2 TRIGGER TX Condition Short range: 2000 to 2300 Hz)
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Location of parts on SPU-9211 P107 FR7062-SMJ-42 Test point on SPU-9211 Test Point Test Item Ratings Remarks TP1,9 41.6 MHz TRUE TRIGGER 5 Vpp (Neg. polarity) TX Condition CLK OUTPUT 207.23 MHz QV OUTPUT -4 Vpp (Neg. polarity,Main bang level) TX Condition FR7062-SME-24A...
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Location of parts on PTU-9149 J1301 FR7062-SMJ-38 Test point on SPU-9211 Test Point Test Item Ratings VR No Remarks TP 1 +10 V 8.2 to 9.5 V TP 2 DC(-) TP 3 Inverter 85.5 to 94.5 kHz Frequency TP 4 TP 31 +12 V 12.1 to 12.3 V...
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Location of parts on HV-9017 (FR-7252) TP3 TP4 CR23 (GRN) CR21 (RED) J482 FR7062-SMJ-27 J814 Test point on SPU-9211 Test Point Test Item Ratings VR No Remarks TP 1 Main inverter 34.7 to 35.3 Vdc VR 1 TP 1 (+), TP 2(-12V) TP 2 DC(-) -12V...
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Location of parts on CRT CRT Board FR7062-SMJ-29B NOTE: The CRT is used with the rotation by 90 degrees. Therefore, the indication “V” and “H” correspond to horizontal and vertical, respectively. Adjustment of CRT VR 401 VR 202 VR 403 VR 402 VR 201 V.HOLD...
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Synchro pulses and video signal 5.59 µS 4 V approx. Horizontal Synchro (15.75kHz) 63.7 µS 7.20 µS 6.21 µS 0.7 to 3.6 Vpp Video Signal 44.7 µS Timing Chart between Horizontal Synchro pulses and video signal 0.57 mS 4 V approx. Horizontal Synchro (60Hz) 16.7 mS...
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3.2 Adjustment of Scanner Unit Location of Parts in scanner unit (FR-7062/7112/7252) Magnet Scanner Motor FR-7062 24rpm: RM-8025 48rpm: RM-8711 FR-7112/7252 24rpm: RM-8367 48rpm: RM-8711 Transceiver Module FR-7062: RTR-059 FR-7112: RTR-060 FR-7252: RTR-061 FR7062-SMJ-35 Inside of Scanner Unit (RTR-060, 48rpm)
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Location of parts on IF-9214 Location of parts on IF-9214 VC 1 TP 1 VC 2 TP 5 VR 2 J612 J611 TP 6 J613 FR7062-SMJ-44 TP 8 TP 3 VC 5 TP 7 TP 2 Test point on IF-9214 Test point on IF-9214 Test Point Test Item...
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Location of parts on 03P9235 J804 J803 TP 804 J801 J806 TP 802 VR 802 TP 801 VR 801 FR7062-SMJ-45 Test point on 03P9235 Test Point Test Item Ratings VR No Remarks Short range: 2000 to 2300 Hz Pulsewidth : 10 to 20 µS (All range) TP 801 TX-TRIG Polarity: Positive Polarity (8 to 12 V)
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Location of PCBs in Transceiver Module (RTR-060: FR-7112) IF AMP Board (IF-9099) INT Board (03P9250) J827 J821 J823 J822 FR7062-SMJ-53 J825 J826 J830 J824 J828 J829 Transceiver Module (Top side) Magnetron (MG5241) (RU-9253/9371) Circulator (RC-4356) FR7062-SMJ-54 Transceiver Module (Top side) Pulse Transformer POWER Board (RT-4427)
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Location of parts on IF-9099 TP 603 TP 605 TP 602 JP 604 JP 605 TP 607 J107 J612 FR7062-SMJ-49 TP 606 J613 TP 604 TP 601 VC 601 Test point on IF-9099 Test Point Test Item Ratings VR No Remarks Bandwidth Factory adjustment...
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Location of parts on 03P9237 TP 2 TP 1 JP 1 J801 J803 VR 1 FR7062-SMJ-51 J802 Test point on 03P9237 Test Point Test Item Ratings VR No Remarks Short range: 2000 to 2300 Hz Pulsewidth : 10 to 20 µS (All range) TP 1 TX-TRIG Polarity: Positive Polarity (8 to 12 V)
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Location of parts on 03P9236 TP 53 J854 TP 52 J851 VR 51 FR7062-SMJ-52 J852 J857 TP 51 Test point on 03P9236 Test Point Test Item Ratings VR No Remarks TP 51 TP 52 +12 V Inverter TP 53 42.75 to 47.25 kHz Frequency J803 #4, #6 Mag.
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Location of parts on 03P9239 J813 J814 J812 J811 FR7062-SMJ-59 3-22...
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Location of parts on 03P9238 J802 TP 2 VR 11 J801 TP 3 J807 TP 1 J808 FR7062-SMJ-60 Test point on 03P9238 Test Point Test Item Ratings VR No Remarks Short range: 2000 to 2300 Hz Pulsewidth : 10 to 20 µS (All range) TP 1 TX-TRIG Polarity: Positive Polarity (8 to 12 V)
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Capter 4. MAINTENANCE 4.1 Remarks on Replacement of Major Parts WARNING Do not set the radar to TRANSMIT with the scanner cover opened or with the antenna disconnected. Not only the unit may be damaged, but also there is radiation hazard. Stop the antenna through the menu, and connect the dummy antenna to the RF unit when transmitting.
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4.2 Life Expectancy of Expendable Parts Parts Type Code No. Life expe ctacy *1 Remarks RM-8025 (24 rpm) 000-116-125 more than 10000 hrs. FR-7062 Scanner RM-8367 (24 rpm) 000-119-253 more than 10000 hrs. FR-7112/7252 motor RM-8711 (48 rpm) 000-122-318 more than 10000 hrs.
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Chapter 5. TROUBLESHOOTING 5.1 Outline This chapter provides troubleshooting flow charts and describes error messages. Error message When no bearing pulse signal is input to the display unit, BP-SIG-MISS is indicated, and when no heading signal, HD-SIG-MISS. Check the antenna cable when those indications appear. Troubleshooting charts The troubleshooting flow charts help the service technician to diagnose problem.
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5.2 Troubleshooting Flow Charts Start Turn power ON Nothing appears Flow chart 1 on display. No echoes nor Flow chart 7 white noise. Flow chart 2 Abnormal display. Flow chart 8 Poor sensitivity. No heading data. Flow chart 3 No GAIN, STC, Flow chart 9 FTC effect.
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Symptom: Nothing appears on the display Flow chart 1 * 1: FR-7062/7112 * 2: FR-7252 No (No power) Check fuse (F1351) on Keys beep when pressed. display unit. Yes (Equipment is powered) Faulty CRT assy. CRT heater lights? OK ?
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Symptom: Abnormal display Flow chart 2 Check horizontal sync, See page 2-4 for vertical sync and video waveforms. output at J102 #2, #4, #5 on pcb SPU-9211 OK ? Faulty pcb SPU-9211 Check if CRT brilliance Adjust CRT brilliance. is not set to minimum with BRILL control.
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Symptom: No heading data Flow chart 3 AD format Heading data format. NMEA 0183's HDT, HDM, HDG Blank Heading data indication? ***.* Blank Heading data Check CLK data at HDG indication? connector #3, #4 on display unit. ***.* Check HDT, HDM, HDG Power OFF and ON.
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Symptom: No nav data. Flow chart 4 All data shown by asterisks or blank. Nav data indication? Some data shown by Check RD NMEA 1/2 asteriska or blank. connector #3, #4 on display unit with oscilloscope. Check nav equipment's output sentences. OK ? OK ? Faulty pcb SPU-9211 or...
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Symptom: Key(s) inoperative Flow chart 5 Warm up countdown. Faulty pcb SPU-9211. Only one key is faulty. Faulty VR on pcb VOL-9151, S1 to S20 on pcb PNL-9150. Faulty lines #11(KEY 1) and #12 (KEY 2) of W301 on Single vertical row only. Single vertical row PNL-9150.
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Symptom: Antenna does not rotate Flow chart 6 * 1:FR-7062/7112 * 2:FR-7252 Antenna does not rotate. Menu setting ? Stop Change "Scan stop" setting to "rotate" (Installation menu) Rotate 0 V (*1:DJ-1 #1, *2: DJ-1 #27 ) when TX key is pressed.
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Faulty pcb SPU-9211. and display unit. Disconnected or Faulty video line cable . short circuit. ±12V line on Faulty cable on ±12 V line. antenna unit. FR7062-SME-45 Faulty pcb IF AMP. FR-7062: IF9214 FR-7112/7252: IF9099 B...
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No echoes; poor (page 5-12) sensitivity. No echoes (White noise appears) Check if level of DJ-1 #16 FR-7062: Faulty pcb IF9214 (*1), #32 (*2) on display FR-7112/7252: Faulty pcb IF9099B 9 to 12V unit changes normally. Check if display unit outputs TX trigger.
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FR-7252: 520 to 580 Vdc FR-7062: Faulty pcb 03P9235 FR-7112: Faulty pcb 03P9236 Within rating ? FR-7252: Faulty pcb HV9017 FR-7062: 7.5 V to 7.7 Vdc Check magnetron heater FR-7112: 7.4 V to 7.6 Vdc voltage at ST-BY. FR-7252: 7.5 V to 8.5 Vdc...
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Magnetron usage time Faulty magnetron. within 2000 hrs Check if AUTOMATIC FR-7062: 1 V to 13 V TUNE voltage is output FR-7112/7252: 5 V to 28 V from display unit. (Switch from ST-BY to TX) Check level at DJ-1 #6 Faulty pcb SPU-9211.
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Symptom: No GAIN, A/C SEA, A/C RAIN effect Flow chart 9 Check voltage at GAIN can be adjusted. Faulty VR on VOL-9151 board. J101 #15 on SPU board. MIN: approx -9 V MAX: 0 V Faulty pcb SPU-9211 A/C SEA can be Check voltage at Faulty VR on VOL-9151 board.
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Symptom: Target cannot be acquired Flow chart 10 AD format HD data * Heading data in NMEA 0183 cannot be used for ARP. supplied ? 200 msec Transfer rate. Change the rate to 25 msec NG (Indication of ARP-10 When LED(CR1) on ARP board is off: 18P9007 is faulty. is not connected) ARP data display ? When LED(CR1) on ARP board is blinking: 18P9007 or SPU-9211...
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5.3 Message Indications The following messages appears to call the operator’s attention to missing heading, bearing or gyro pulses. Error Message Meaning Heading pulse is not applied to the SPU pcb. HD SIG MISSING Bearing pulse is not applied to the SPU pcb. BRG SIG MISSING ***.* appears when bearing signal is interrupted momently.
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SCHEMATIC DIAGRAM TITLE TYPE DWG. No FR-7062 FR-7112 FR-7252 PAGE C3459-C01 INTERCONNECTION C3460-C01 DIAGRAM C3461-C01 RDP-122 C3459-K01 DISLAY UNIT RDP-123 C3461-K01 PANEL PNL-9150 C3392-K02 TB-9152, TB/VOL Board C3392-K03 VOL 9151 03P9234 C3460-K03 INT Board 03P9240 C3461-K03 TX-HV HV-9017 C3352-K02 S-10...
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