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MARINE RADAR FR-2115/2125
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FURUNO E L E C T R I C C O., LT D.
9-52, Ashihara-cho, Nishinomiya, Japan 662 Te l e p h o n e : Te l e f a x : 0798-65-2111 0798-65-4200
Yo u r L o c a l A g e n t / D e a l e r
FIRST EDITION : DEC 1998
All rights reserved.
Printed in Japan
PUB. No. SME-34640-A
(KAOK) FR-2115/2125
CONTENTS
Chapter1. GENERAL
1.1Outline...........................................................................1-1 1.2 Boards & Major Components .....................................1-2 1.3 Specifications................................................................1-3
Chapter 2. BLOCK DESCRIPTION
2.1 Overview.......................................................................2-1 2.2 Block Diagram of Display Unit....................................2-2 Function of Each Board (Display Unit) ..........................2-3 Start-up Sequence ..........................................................2-5 ARPA start-up sequence.................................................2-6 Block Diagram of Display SPU Board ...........................2-7 Video Signal Flow .........................................................2-8 Block Diagram of SPU Board (Video Amplifier) ...........2-9 Auto Tuning Function ....................................................2-10 Tuning Indication...........................................................2-11 Manual Tuning...............................................................2-11 Tuning Circuit................................................................2-11 Echo averaging (EAV 1/2/3)...........................................2-12 Memories & Memory Frame Priority .............................2-13 Antenna on/off Control ..................................................2-14 Check of ARP and RP board Connection .......................2-15 ARP-23 vs. ARP-26.......................................................2-15 Simple ARPA block diagram .........................................2-16 ARPA block diagram .....................................................2-17 ARPA target acquisition and Tracking............................2-18 ARPA INITIAL SETTING MENU ................................2-19 Block Diagram of RP Board...........................................2-22 INPUT/OUTPUT Data on INT Board (03P9252)...........2-23 Sentences Receivable at J450 on INT-9170....................2-24 Radar and ARPA output signal from INT-9170 ..............2-25 Monitor signal from J449...............................................2-26 Power Supply Circuit (DC) ............................................2-27 Power Supply Circuit (AC) ............................................2-29
CONTENTS
2.3 Scanner Unit ................................................................ 2-31 General.......................................................................... 2-31 Block Diagram of Scanner Unit ..................................... 2-32
Chapter 3. ADJUSTMENT
3.1 Adjustment (Display Unit) .......................................... 3-2 Location of Major parts ................................................. 3-2 Adjustment of CRT........................................................ 3-5 3.2 Adjustment (Scanner Unit) ......................................... 3-15 FR-2125 (RTR-063) ...................................................... 3-17 FR-2115 (RTR-062) ...................................................... 3-21
Chapter 4. MAINTENANCE
4.1 Dip Switches................................................................. 4-2 4.2 Jumper Settings ........................................................... 4-3 4.3 LED Status .................................................................. 4-4 4.5 Notice on Replacing Major Parts................................ 4-8 4.6 Program Numbers ....................................................... 4-9 4.7 How to update system program .................................. 4-9 4.8 Alternation of Power Supply....................................... 4-11
Chapter 5. TROUBLESHOOTING
5.1 Outline ......................................................................... 5-1 5.2 Error Message .............................................................. 5-1 5.3 Troubleshooting Flow Charts....................................... 5-1
Exploded View ................................................................ D-1 Mechanical Parts List ................................................... M-1 Schematic Diagrams ..................................................... S-1 Electrical Parts List ....................................................... E-1
Chapter 1. GENERAL
1.1 Outline
This manual provides the information necessary for the servicing and adjustment of the radars FR-2115 and FR-2125. The antenna unit uses a Log IF amplifier. The features are;
6 pulselengths enabling echo size on the screen to be similar in all ranges Flash ROM enabling program update to use a PC Non-interlace, high-resolution display (1024x1280 dots) New microprocessing technology with high-speed high-density gate array Radar mapping capability
New cast aluminum scanner gearbox New series of streamlined radiators, fixing feeder waveguide not required at installation Display unit separable into Monitor, Control Unit, and Processor Units Stabilized antenna rotation Improved short-range performance using shorter pulselength and higher repetition rate than
before. The table below shows the major specifications of each model.
Functions Maximum Range Program Number Tuning Voltage (displayed at manual tuning) RF Module Antenna Rotation Output Power TX-HV Board Input Voltage (Ship's Mains) RTR-062 12 kW HV-9017 A FR-2115 72 NM(R-type) 96 NM(IMO type) FR-2125
(Lines and Marks can be entered without the RP board, Gyro and L/L data required)
0359149-1XX English
120 NM(R-type) 96 NM(IMO type)
Japanese
RTR-063 25 kW HV-9017 B
2.0 V to 32 V
24 rpm or 42 rpm
24/32 VDC : 21.6 to 41.6 V 110 VAC : 90 to 126 V 220 VAC : 198 to 253 V
The major parts and P.C. Boards used in the display and scanner units are tabulated on the next page.
1-1
1.2 Boards & Major Components
DISPLAY UNIT
Board Name SPU Board PTU (PWR) Board FILTER Board TX-HV Board PANEL Board (in control head) PAL Board (in control head) PAR Board (in control head) INT Board Mother Board ARP Board (Optional ARP-26) RP Board (Optional RP-26) Card I/F Board (Optional RP-26) PDM Board Gyro Board (Optional GC-8) PM Board (Optional PM-30/50) CRT Unit FR-2115 03P9253 DC : 03P9246, AC : 03P9245 DC : 03P9226, AC : LF-210 HV-9017A 03P9255 03P9254 03P9256 03P9252 03P9251 18P9002 B 14P0298 14P0299 PDM-9025 64P1106 A 03P9225 CDT2136B HV-9017B FR-2125
SCANNER UNIT
Board Name MODULATOR Board RFC Board IF AMP Board INTERFACE Board Limitter MIC Magnetron Circulator Scanner Motor Signal Cable MG5241 RC-3686 D8G-516 (24 rpm)/D8G-571 (42 rpm) RW-4873 FR-2115 03P9244 A 03P9243 A 03P9232 03P9242 RU-9099 RU-9253/RU-9371 MG5436 FR-2125 03P9244 B 03P9243 B
1-2
1.3 Specifications
SCANNER UNIT
ITEM Radiator Type Radiator Length Horizontal Beamwidth Vertical Beamwidth Sidelobe Attenuation Polarization Antenna Rotation Scanner Housing Structure Compass Safe Distance Standard Steering 1.65 m 1.25 m Within +10 deg. to 10 deg. of mainlobe Outside +10 deg. to 10 deg. of mainlobe 1.8 deg. FR-2115 4 ft (XN12AF) 6.5 ft (XN20AF) 1.23 deg. 20 deg. 28dB or less 32dB or less Horizontal approx. 24 rpm/approx. 42 rpm Open Radiator 2.15 m 1.60 m FR-2125 8 ft (XN24AF) 0.95 deg.
Slotted Waveguide Array
TRANSCEIVER
ITEM Magnetron Frequency & Modulation Peak Output Power FR-2115 MG5241 12 kW 0.07 µs, approx. 3000 Hz (S1 : 0.125 nm to 1.5 nm) 0.15 µs, approx. 3000 Hz (S2 : 0. 5 nm to 3 nm) 0.3 µs, approx. 1500 Hz (M1 : 0.75 nm to 6 nm) Pulselength & Pulse Repetition Rate 0.5 µs, approx. 1000 Hz (M2 : 3 nm to 24 nm) 0.7 µs, approx. 1000 Hz (M3 : 3 nm to 24 nm) 1.2 µs, 1.2 µs, approx. 600 Hz (L : 12 nm to 48 nm) approx. 600 Hz (L : 12 nm to 48 nm) approx. 500 Hz (L : 72 nm ,R-type/ approx. 500 Hz (L : 120 nm R-type/ 96 nm ,IMO-type) 96 nm ,IMO-type) Modulator Duplexer Tuning Intermediate Frequency Bandwidth FET Switching Circulator with diode limiter Automatic or Manual 60 MHz 25 MHz (0.07 µs, 0.15 µs, 0.3 µs), 3 MHz (0.5 µ, 0.7 µ, 1.2 µ) FR-2125 MG5436 25 kW
9380 MHz to 9440 MHz, P0N (X band)
1-3
DISPLAY
ITEM Picture Tube Range Scale (nm) Range Ring lnterval Number of Rings Bearing Resolution Range Discrimination Bearing Accuracy Minimum Range Range Ring Accuracy VRM Accuracy FR-2115 PPI (Raster scan, Daylight display) IMO type; FR-2115/2125: 96 nm Non-IMO type; FR-2115 : 72 nm, FR-2125 : 120 nm
0.125 0.025 5 0.25 0.05 5 0.5 0.1 5 0.75 0.25 3 1 0.2 5 1.5 0.25 6 2 0.5 4 3 0.5 6 4 1 4 6 1 6 8 2 4 12 2 6 16 4 4 24 4 6 32 8 4 48 8 6 72 12 6 96 16 6 120 20 6
FR-2125
1.8 deg. (XN12AF), 1.23 deg. (XN20AF), 0.95 deg. (XN24AF) Better than 20 m +1 deg to 1 deg. Meets 35 m HSC requiments 1 % of range or 15 m, whichever is the greater IEC-61162-1 port (two inputs, J450/J455) IEC-61162-1 output port (J450) : $RAOSD, $RARSD ARPA data output port (J454) : IEC-61162-1, $RATTM, ARP-26 required RS-232C port (input/output, J456) : System program updating Gyro port (input, J446) : AD100 format Speed Log port (input, J448) : Contact-closure signal
I/O Ports
Alarm output (J452) : +12 V buzzer drive signal Remote Display port (two outputs, J442/J443) : TRU-HD, BP, TRU-TRIG, VIDEO EXT. ARPA port (output, J444) : ARPA-HD, ARPA-BP, ARPA-TRIG, ARPAVIDEO Interswitch port (J457/J458) : For RJ-7 Monitor port (J449) : For PC monitor, Buffer PCB required IEC-61162-1/NMEA 0183 Own ship's position : GGA>RMC>RMA>GLL Speed : RMC>RMA>VTG>VHW Heading (True) : VHW Heading (Magnetic) : VHW Course (Trne) : RMC>RMA>VTG Course (Magnetic) : VTG>RMC>RMA Waypoint (Range/Bearing) : RMB>BWC>BWR Time : ZDA Loran time difference : RMA>GLC>GTD Water depth : DPT>DBT>DBK>DBS Water temperature : MTW>MDA Standard Steering 1.40 m 1.05 m
NAV Data Input
Compass safety Distance
1-4
ENVIRONMENTAL CONDITIONS
ITEM Ambient Temperature Humidity Vibration Scanner Unit Display Unit FR-2115
25 deg. to +70 deg. 15 deg. to +55 deg.
IEC 945, Edition 3
FR-2125
Relative humidity 95% or less at +40 deg.
POWER SUPPLY & POWER CONSUMPTION
ITEM AC Power Supply DC Power Supply Power Consumption DC Set AC Set FR-2115 110 VAC : 90 to 126 V 220 VAC : 198 to 253 V 24/32 VDC : 21.6 V to 41.6 V 230 W (no wind)/300 W (100 knots) 360 VA (no wind)/465 VA (100 knots) 260 W (no wind)/330 W (100 knots) 410 VA (no wind)/515 VA (100 knots) FR-2125
1-5
Chapter 2. BLOCK DESCRIPTION
2.1 Overview
Outline
Figure 2.1 TX
Simplified block diagram
The trigger pulse from the SPU (Processor) Board is delivered to the MODULATOR Board which outputs the signal to oscillate the magnetron, and then radar wave is emitted from the radiator. RX The 9.4 GHz echo signal received by the antenna is converted to 60 MHz signal by the MIC, amplified by IF Amplifier, and fed to the SPU (Processor) Board as a video signal. It is digitally processed and then displayed on the CRT. The SPU Board contains a video amplifier. Auto Plotter (optional) The following signals are applied from the SPU Board to the ARP-26 Board: Heading, Bearing pulse, Video, Trigger, Bearing in AD format, and Ship's speed in IEC-61162. Target acquision and tracking are performed on the ARP Board, and displayed on the CRT. Target data includes target position, CPA, TCPA, Speed, and Course. Plotter (optional) Data such as latitude and longitude in IEC-61162 format is delivered from the SPU Board to the RP Board. Plotter data generated on the RP board is output to the SPU Board and processed to display them on the screen. The plotter menu is generated on the SPU Board.
2-1
2.2 Block Diagram of Display Unit
To degauso coil
HD BP VIDEO
MOTHER Board (03P9251)
INT Board(03P9252)
Buffer Buffer Level Adj. Buffer Selection SW (Menu-Selection) Scanner Unit HD,BP, TRIG,VIDEO
MOTHER Board (03P9251)
SPU Board(03P9253)
Color palette D/A CONV.
H SYNC(64 kHz), V SYNC(60 Hz), DOT CLK(108.5 MHz)
CRT
P.F. Signal from PWR Board
RP Board(14P0298)
Priority (layering) VIDEO
Video
Scrolling
CPU
Video Amp. Level Adj.
A/D CONV.
Signal
Proeessor
Memory
From ACRTC
EXT HD EXT BP EXT TRIG EXT VIDEO
Level Adj.
Buffer Buffer Buffer
RJ-7 or Main Radar EXT HD,EXT BP, EXT TRIG, EXT VIDEO
H SYNC/ V SYNC/ DOT CLK
VRAM
HD,BP
Buffer
CPU L/L, S/C
AGDC
Multiplexer
Buffer
Gate Array (G/A)
Buffer
D.P RAM
Buffer VIDEO HD,BP
(Optional)
NAV DATA
Photo Coupler Noise Filter Photo Coupler
PNL Board(03P9255)To G/A on SPU
A/D CONV.
Front end SPD CRS D.P RAM
SPD CRS CPU D.P RAM
Level CONV. (TTL RS232C)
Card I/F Board (14P0299)
Chart Card/ ERC Card/ RAM Card
SPEED LOG
AD-100
GYRO Board (64P1106)
GYROCOMPASS
A/D CONV.
(Optional) (Optional)
ARP Board(18P9002)
D.S.P
MAIN CPU
PWR Board
POWER
Overcurrent Detector
HALL 1/2
Magnetism Detector
PM Board (03P9225)
+12 V
PAL Board (03P9254)
Switches (PM ON/OFF, Degauss)
PAR Board (03P9256)
Switches (Radar Picture, Menu)
TB301
(Optional)
TO RF UNIT
TX HV Regulator Protector Power Degauss DEGAUSS
PM ON
Trackball
Rectifier
AC:03P9245 DC:03P9246
DEGAUSS Board(PDM9025)
(Optional)
FR2115-SME-22
Ships Mains DC 24/32 V, AC 100/110/115 V or AC 220/230 V
Ships Mains AC 100/110/115 V or AC 220/230 V
Performance Monitor
2-2
Function of Each Board (Display Unit)
Board Name Function 1) Contains a video amplitier circuit. (a) Applies GAIN, STC, FTC and IR to video signal and outputs to the A/D converter. (b) Adjusts video signal input level (adjusted by pot. VR140). (c) Changes STC curve according to the antenna height set on the Radar menu. (d) Echo Stretching 1. 2) Performs A/D conversion of video signal. 3) Echo averaging (EAV 1/2/3) 4) Constructs radar picture from HD, BP, TRIG, and VIDEO signals. 5) Controls keyboard. 6) Mixes data being fed from ARP and RP boards to display them on the screen. 7) Displays navigation data being fed from a navigator. 8) Reads and displays trackball, EBL, and VRM data. 9) Controls tuning circuit. 10) Outputs "degauss" signal to the DEGAUSS Board. 11) Outputs Tx trigger and pulselength signals to the antenna unit. 12) Backs up menu settings, radar map, tune voltage, tune Ind. voltage, and waypoint with the EEPROM (U10). 13) Echo Stretching 2/3. 14) Generates menus and radar maps. 15) Echo trailling. 16) Checks for the presence of ARP and RP boards at power-up. 1) Compatible with latest ARP-23 hardware. 2) Converts GAIN-, STC-, FTC-, and I/R-processed video signal to quantized video (QV) and sends back to the SPU Board. 3) Performs automatic and manual target acquisition and tracking. 4) Detects HD, BP, TRIG, VIDEO, LOG and GYRO signal errors. 5) Calculates CPA and TCPA. 6) Detects land echo. 7) Outputs ARPA data to the SPU Board : Target No., R/B, CPA, TCPA, etc. 8) Processes trial maneuver. 1) Generates data (grid, own ship mark, mark, and ship's tracks, etc.) for the plotter display. 2) Backs up data such as ship's tracks and marks. 3) Reads and displays digitized charts. 4) Outputs plotter display data to the SPU Board. 5) Inputs/outputs data (track, marks etc.) from/to the RAM card. 1) Receptacles of ROM and RAM cards. 2) Used to stores and retrieves data to/from ROM and RAM card. 1) Outputs HD, BP, TRIG and VIDEO signals to a radar slave display. (J442/443, two output ports) 2) Receives HD, BP, TRIG and VIDEO signals from other radar. (J458) 3) Inputs/outputs RJ-7 signal. (J458/457) 4) Outputs ARPA data to the external equipment. (IEC-61162-2 , J454) 5) Outputs external buzzer signal. (J452) 6) Outputs V-SYNC, H-SYNC, R, G, B for a PC monitor or hard copier. A buffer circuit required. 7) Inputs speed log signal, contact-closure. (J448) 8) Outputs alarm signals, Buffer board required.
SPU Board 03P9253
ARP Board 18P9002
RP Board 14P0298
CARD I/F Board 14P0299
INT Board 03P9252
2-3
Board Name PNL Board 03P9255 PAL Board 03P9254 PAR Board 03P9256 TX-HV Board HV-9017 DEGAUSS Board PDM9025 MOTHER Board 03P9251 GYRO CONVERTER Board 64P1106 1) 2) 3) 4)
Function Outputs encoded data of EBL, VRM and trackball signals. Includes GAIN, STC, FTC, and BRIL volumes. Includes EBL ON/OFF, VRM ON/OFF, FUNC 1/2/3/4, and Range +/- keys. Reads PAL/PAR board status.
1) Includes ANT ON/OFF, Performance monitor ON/OFF, and degauss switches. 2) Includes CPU Fail indicator (LED). 1) Keys: HL OFF, PANEL BRILL, ACQ, and menu keys
1) Supplies Tx high voltage to the antenna unit. 2) Contains overcurrent protector. 1) Automatically degausses the screen at power-up. 2) Detects magnetism and automatically degausses every 20s. 3) Degausses the screen when DEGAUSS switch is pressed. 1) 2) 3) 4) Connects each PCB. Includes a connector for the antenna unit. Includes a connector for the RJ-8. Includes a connector for the control head.
1) Converts gyrocompass signal into AD format signal. 2) Outputs Max. 6 AD format signal (25 ms or 200 ms jumper selection, select 25 ms for radar and ARPA.) 1) Outputs -12V, +12V, +140V (for CRT), +5V and +32V (for tuning cont.), and motor drive voltage. 2) Outputs Power Fail (PF) signal to the RP Board. 3) 110 VAC, 24 rpm : 03P9245A 110 VAC, 42 rpm : 03P9245C 220 VAC, 24 rpm : 03P9245D 220 VAC, 42 rpm : 03P9245F 4) Contains overcurrent protector for -12V,+12V, and +140V. 5) Contains abnormal input voltage detector. 110 VAC : Low voltage, 73 to 78 VAC; high voltage, 146 to 170 VAC 220 VAC : Low voltage, 130 to 144 VAC; high voltage, 260 to 288 VAC 1) Outputs -12V, +12V, +140V (for CRT), +5V and +32V (for tuning cont.), and motor drive voltage. 2) Outputs Power Fail (PF) signal to the RP Board 3) DC 24/32 V, 24 rpm : 03P9246 A DC 24/32 V, 42 rpm : 03P9246 C 4) Contains overcurrent protector for -12V,+12V, and +140V. 5) Contains abnormal input voltage detector. Low voltage, 21.6 Vdc; high voltage, 41.6 Vdc 1) No HV is generated when H Sync. Signal is input to the monitor circuit.
PTU Board (AC) 03P9245
PTU Board (DC) 03P9246
Color Monitor Assy. CDT-2136B PM Board 03P9255 optional
1)
Power supply circuit for the performance monitor
2-4
Start-up Sequence
Radar start-up sequence
Process 1. The soft start circuit activates to protect the power ON/OFF relay contacts. 2. The input voltage monitor checks for abnormal voltage. When ship's mains is abnormal the ON/OFF relay trips off. 3. The inverter comes on and outputs all line voltages. The LED comes on and the inverter goes off when overcurrent is detected. 4. ROM, RAM, I/O port, custom IC, AGDC and VRAM are initialized. 5. The system is initialized using EEPROM and DIP switch data. 6. The timer starts counting down from 3 minutes (time remaining for warm-up of magnetron). 7. Checks for the absence/presence of a gyro signal. 8. Checks for the absence/presence of the ARP and RP Boards. 9. The SPU Board starts operating. Note) When H-sync signal is not applied to the CRT unit, no HV is generated, resulting in nothing on the screen. 10. The bearing scale, countdown indication, etc. appear. 11. The screen is degaussed automatically. 3-minute warm-up can be skipped by pressing [ENTER] several times while pressing and holding down [HL OFF]. (Do not release this information to user.) 12. Three-minute warm-up ends. 13. The radar goes into stand-by. 14. Checks for the presence of the BP (Bearing Pulse) signal. 15. The tuning circuit goes into "short search mode." 16. When the range is changed, the tuning circuit goes into "short search mode." 17. Panel settings are written onto the EEPROM. 18. Time data are written onto the EEPROM.
2-5
ARPA start-up sequence
Power ON * A reset pulse is generated when +5 V line drops to about 4.2 V.
ARPA(18P9002)
Initializes DSP. CR17 on pcb 18P9002 blinks every two seconds. Waits for initialization of DSP RAM (between DSP and MAIN CPU). END Yes FE starts operating. Monitors gyro and speed log signals. GYRO/LOG Alarm No Initializes NAIN CPU.
RADAR
(03P9253)
Initializes SPU Board. Communicate with DPRAM on ARPA Board to confirm presence/absence of ARPA Board. YES No Yes Starts up with no ARPA. No
Initializes DSP RAM (between DSP and MAIN CPU). Initializes DSP RAM (between MAIN CPU and SPU). END Yes CR1 on pcb 18P9002 blinks. Yes Tx ON No
Starts up with ARPA.
OK Yes Tx ON Yes Monitors radar input signals (HD, BP, TRIG, VIDEO). Yes OK No No
Normal Operation
The LED on ARPA Board lights
Display radar picture (radar signal processing)
FR2115-SME-13
Figure 2.2
ARPA Start-up sequence
2-6
Max. brilliance : 0.7 Vpp P551 QV VIDEO C19 C14 R134 4 Vpp TP4(VIDEO) U72:VlEVEL 0 U73:VlEVEL 2 U74:VlEVEL 4 U75:VlEVEL 6 U76:VlEVEL 8 U77:VlEVEL 10 U78:VlEVEL 12 Even Level U72,73, 74,75,76, 77,78
Video Selector Video Amplifier U43 A/D Converter REF Voltage Generator U35
Trigger Gen. Even Echo Handling
From RP-26 (Video)
Signal Processing, Echo Trailing, Echo Processing,
INT TRIG
µs P552 CRT VIDEO(R,G,B) 54.25 MHz A30 A31 A32 To CRT
Sampling I/F Rejection Noise Rejection
Echo Video Memory U24,26,28, 29,30
Priority
MAX : 5 V, MIN : 0 V AC SEA VR GAIN VR A/C RAIN VR P552 A21 A22 A23 A24 P551 BEARING C13 0.7 V (360 pulses,144Hz) #14 TB XA TB XB TB YA TB YB B23 B25 C25 MAX : 5 V, MIN : 0 V MAX : 5 V, MIN : 0 V
U33
Color Paletle D/A Converter P/S Converter U34
U44 03S9060 (Gate Array)
#73 #74 #75 #76 U79:VlEVEL 1 U81:VlEVEL 3 U82:VlEVEL 5 U83:VlEVEL 7 U85:VlEVEL 9 U86:VlEVEL 11 U88:VlEVEL 13 Odd Level U79,81, 82,83,85, 86,88
Coordinate Conversion (r, ) (X,Y)
* + cursor generation TP7 (H SYNC) 4V
OSC
P552 15.63us TP8 (V SYNC) 4V 16.63ms A20 To CRT C20 To CRT
TRACKBALL
Trigger Gen. Odd Echo Handling
PLL U37 PLL U46
#4
Timing Adjuster & Divider
#98
Sampling I/F Rejection Noise Rejection
INT TRIG
Echo Processing U27
#14 8 V to 12 V HEADING.P A13 0V
#4
#103 #97
Sampling Clock
U45 03S9060
CR7 FROM RJ-7 C8 CR3 TO RJ-7 C7 #37 #47 #48 8192 pulses 32 MHz #36 40 MHz
Y1
Echo Trailing Memory U25
U35
U15
OSC
P551 GYRO DATA GYRO CLOCK C11 C12 CR8 From INS B5 CR4 To INS B4 CR5 KEY DATA B5 CR1 KEY CONT. P552 NAV DATA INTPUT C17 CR2 NAV DATA OUTTPUT P551 TUNE IND A17 A17 TP3 B4 CR6 #82 #80 #79 #83 From U94 #1 A25 TUNING CONT. #84 #26 #97 #25
U45 CPU ACRTC U16
Graphic Memory
From U35 #89
TP6 P551 C16 TP5 From U35 #83 TP9 C17 TX TRIGGER OPTION TRIGGER
Flash ROM(8M) U11
RAM U5,7
EEPROM
4 (50 MHz)
U10 * Socket type At board replacement remove EEPROM and put on to new board.
Character Generator U42
Buffer U18,19
U1,3,4,6, 8,9
TP1,2
12.5 MHz
OSC
To Dual port RAM in ARP/RP
#83
Filter R2/C1
#6 #7 #5 U40
STBY : 0.7 V, TX : About 3 V
U17
#75
SPU Board (03P9253)
FR2115-SME-23
Figure 2.3
Block Diagram of SPU Board
2-7
Video Signal Flow
The figure below shows video signal flow. The video signal from the scanner unit and an external radar are adjusted in level by R21 and R134 on the INT board 03P9252 respectively so that the main bang level at TP6 on the INT board is 3.9 to 4.1 Vpp. The R140 on the SPU board is factory-adjusted so that the main bang level is 3.9 to 4.1 Vpp at TP12.
The video signal from the SPU board to the ARP board is gain-, STC-, and A/C sea-adjusted.
When the radar is used as a remote display, no signal is output from External ARPA and RJ-7 ports.
MOTHER Board 03P9251 INT Board 03P9252 TP1
Q18,19 R21 +12 V Q27,28 RJ7 VIDEO K2 15 RJ7 VIDEO SEL 8 External ARPA
about 4.5 Vpp
J414 J444 Q37,38 ARPA VIDEO J457
J417
P417
2-8
TP3
J443
8 Slave display Q40,41 R134
about 4 Vpp about 4 Vpp
From RF Unit
1
IF IN
A19 A20 A21
A19 A20 A21
J417 J442 Q10,11 OP VIDEO A
8
Main/remote display and Radar 1/2 selection
C5
Slave display
J458
Q22,26 OP VIDEO B
External radar or RJ-7
8
MOTHER Board 03P9251 TP6
P417 J414 J551 P551
SPU Board TP12 03P9253
about 4 Vpp
Q8,9
RF VIDEO
C21 C22 B21
C21 C22 B21
IF IN
C14
C14
R140
P551
Video Amp. (GAIN,A/C SEAand A/C RAIN Adjustment) A18 ARP Board
FR-2115-SME10E
Figure 2.4
Video Signal
Block Diagram of SPU Board (Video Amplifier)
about 4 Vpp VIDEO IN R140
Buffer
A/C AUTO : OFF
Mix
about 4 Vpp (Adjust by R140) TP12 about 4.2 Vpp TP11
Q9
A/C AUTO : ON
Q17 Inverter Mix
VIDEO (To ARPA Board:P551 A18) Video Contrast Selector U96 Video contrast (menu selection) Gain Cont. Gain Cont. (short range) Q34 Q19/20 *Gain reduced when FTC is on. *Noise is controlled and gain lowered on ranges up to 6 mile.
TP4 about 4.0 Vpp
Amp. & Buffer Q44, 55, 56
Gate
Filter
Buffer
Gate
Q28
Q46
Gain & STC Control Q66, 67
A/C RAIN
Buffer
Echo stretch (range direction) Q60 `Q64
Amp.
Log to Linear Converter CR57, 59, 71, 72
Amp.
Buffer
Selector
CR75
TP13
Q65
Q35, Q37
Q13, 14, 21
Q22, 23, 15
U43
RF VIDEO (To AD Conv.) QV VIDEO (From ARPA Board:P551 C19)
U87
TP9 3.5V 0 1us
Q11, Q12
U56 Differential Peaking STC Buffer
STC Curve Amp. Gate Echo stretch on/off U95
One-shot U35(Gate Array)
Q27
Q26 *not used
Q25, 52, 53
U93
U54
SMPL T
STC in A/C AUTO mode Q18 A/C AUTO (From SPU Board)
GAIN: -7 to 0 V Conv.
D/A Conv.
STC data memory A/C RAIN: -7 to 0 V U35
U68
STC VR Curve Generator Q30, 32, 10, U92
Conv. U100
U100 A/C SEA: 0 to 5V 0 to 5 V
0 to 5 V Ant. Height (menu selection)
1) Mixer (Q17): In A/C AUTO mode, the pulse, whose level is the same as the main bang, is mixed with the video signal. The falling edge of the pulse is coincident with the beginning of the video signal. 2) Mixer (Q46): The output of Q17 is amplified in reverse polarity by Q28, and at the same time, differentiated and then amplified by Q27. The output of Q27 and Q28 is mixed so that the positive video signal without ac component is obtained. Mixer eliminates the DC component of the video signal, or outputs the ac component of the video signal. 3) Peaking (Q26): not used. To improve range discrimination on short ranges, add capacitor C228, 56 to 100 pF on the SPU board. 4) STC Curve: The STC curve is menu-selectable; "ANT HGT", INITIAL SETTING 1 and "CTR STC CURVE", INITIAL SETTING 4. The latter is determined the STC curve near screen center, up to about 10 us. 5) STC in A/C AUTO mode (Q18): A/C AUTO works more effectively, compared with the FR-2100 series. Under heavy rain, use AC AUTO rather than AC SEA, and reduce the gain setting. 6) Video constant (U96) : The video constant is selected in the initial setting 3 menu. Factory-setting is 3 for long range detection, Under snow, rain, and heavy sea, select either 1 or 2. 1: Wide dynamic range. Similar echo to FR-2100. 2: Middle dynamic range. 3: Narrow dynamic range, but high visual intensity.
Antenna Height vs. STC Curve
Low Antenna
4.5 V
High Antenna
0V Range
Near STC Curve Selection
Sharp Curve (H)
4.5 V
Standard (M)
Gentle Curve (L)
0V
10 us
Range
Figure 2.5 @STC Curves
FR2115-SME-10G
2-9
Auto Tuning Function
The system provides auto tuning mode which eliminates the adjustment of the receiver for maximum echoes. The "Tune Initialization" is required after not only the installation but also the replacement of RF unit, magnetron, MIC, and SPU board, so that the tune control voltages for each pulse are memorized onto the EEPROM. The figure below illustrates how the tune initialization takes place. First, full search is performed using a long pulse to find the tuning point (a). Next, short search is performed using all pulses to find tuning points (b). After the initialization, the pulselength used before the tune initialization is selected. Full search: Varying tune control voltage (TUNE CONT) from about 5 V to 30 V, the maximum tune indicator voltage is found and that tune control voltage (a) is memorized. Short search: The tune control voltage changes between the tune voltage (a) plus and minus 2.5 V for fine tuning. When the radar is set from ST-BY to TX, short search is made twice. When the pulselength is changed, short search is made once.
about 32 V
Full search (a) (b) (b)
Short search (b) (b) (b)
Tracking (b) Pulse length in use
Tuning control voltage about 2 V
Auto coarse tuning point
Max. about 3 V Tuning indicator voltage Min. about 1 V
Pulselength EEPROM backup LP Auto and Man. coarse tuning pt. LP M3 M2 M1 S2 S1
Time
Max. Max. Max. Max. Max. Max. Tuning Ind. Tuning Ind. Tuning Ind. Tuning Ind. Tuning Ind. Tuning Ind. voltage voltage voltage voltage voltage voltage
FR2115-SME-14
Figure 2.6
Tune Initialization
2-10
Tuning Indication
The tuning indicator extends more than 80% of its full length on all ranges at best tuning. The self-test result display reads the tune indicator voltage.
Manual Tuning
When tuning mode is changed from auto to manual mode, the tuning control voltage (a) found in full search is selected. In manual tuning mode, the graphical tuning control voltage indicator appears under the tuning indicator. The minimum scale is 2 V and the maximum scale is 32 V.
Tuning Circuit
Figure below shows the tuning circuit. Tune control voltage is output from P551, A25 on the SPU board.
P551
TUNE ENC A. TUNE ENC B. B21 B22 (From MOTHER Board)
U94 GA U44 GA U35 D/A CONV. U62
F VT #10 #8 x1 0 to 5 V #3 C VT #12 #14 SUM #1
ENCODER U44
P551
A25 TUNE CONT. (To MOTHER Board)
FR2115-SME-10B
U94
x6
U94
Figure 2.7
Tuning Circuit
2-11
Echo averaging (EAV 1/2/3)
Remarks on the echo-averaging feature Echo averaging is a useful feature when used properly. If used improperly, however, the result could be disastrous. Objective and principle of echo averaging The main objective of echo averaging is to discriminate targets (flocks of birds, other ships, fishing floats, etc.) hidden in sea clutter, and stably display long range targets (ship, buoy, island, etc.) which alternately appear and disappear on the screen. Normally, unstable echoes such as those from sea clutter and noise appear at random positions with every rotation of the antenna. To distinguish real target echoes from clutter, the picture is stored and averaged over successive picture frames. If an echo is solid and stable it is shown in its actual intensity. Unstable echoes are reduced in intensity. The following illustrates how echo averaging EAV 1/2/3 work.
Figure 2.8
Echo Averaging
2-12
Memories & Memory Frame Priority
Memory capacity is 2048x2048 dots, radar display area is 1280x1024 dots, and radius of echo display area is 360 dots.
2048 dots
1280 dots
360 dots
1024 dots
2048 dots
FR-2115-SME-28
Figure 2.9 Memory Capacity and Display Area
U24,U26,U28,U29,U30 (5 frames)
Radar echo Echo trail Echo in alarm area
Each 3/4 of U8 and U9 (3 frames) Radar map Radar mark no frame (data from RP) RP Each 1/4 of U4,U6,U8 and U9 (2 frames) ARPA U1 and U3 (4 frames) Cursor Gyro Characters no frame Menu +Cursor Data Mask Each 3/4 of U4 and U6 (3 frames)
+
Highest priority Figure 2.10 Priority of Each Frame
2-13
Antenna on/off Control
The SPU board produces the antenna on/off signal. The PWR board monitors the number of the bearing pulse from the scanner unit and changes motor control voltage to maintain the constant speed of antenna rotation. The voltage between #1/#2 and #3/#4 of J103 is about 30 VDC with the scanner unit disconnected.
To rotate the antenna, the followings must be satisfied.
1) TX key pressed 2) #A6 of P551on the SPU board is "high" 3) #7 of J103 on the PWR board is "high" 4) 14 to 24 V derived from #1/#2 and #3/#4 of J103 on the PWR board
PANEL Board
J313
#16 2 A6 U51 TX FH STBY FL 3 B19 A17 B18 A18 A6 #1 #32
PAL Bord 03P9255
J312 J412 J551 P551 G/A U35
MOTER Board 03P9251 03P9253(SPU Board)
TX Key
03P9254
P313
ANT ON/OFF
S1
17
2-14
J417 P417
C8 5
ANT SW
17
03P9252(INT Board)
J467
5 For TX/RX down ANT ON/OFF EFR-2135S EFR-2135SW EFR-2165DS EFR-2125W EFR-2155
J415
7 7
TX FH STBY FL
J103
03P9245(PWR Board)
Soft start control
SPU Board 03P9253
P551 U20
A5 A5 #16
J551
5
J103
ANT. SPEED 5 Q94
Comparator
G/A
#46
U57
#17 #18
#4
U35 DJ1
U92 Chopper Control
CR94,Q97 Chopper
1,2 3,4
MOTOR(+), MOTOR(-) EFR-2115 EFR-2125 U93 *DC14 to 24 V(With ANT) DC30 V(With out ANT) 6 6
F/V Converter
BP (From RF Unit)
22
FR2115-SME-10C
Figure 2.11
Antenna on/off Control
Check of ARP and RP board Connection
The system checks the connection of the ARP and RP board every power on. If the CPU on the SPU board fails to communicate with the ARPA or RP board, the related display does not appear on the screen, but also the ARP and/or RP line is not displayed on the self-test result display.
ARP-23 vs. ARP-26
The ARP-26 uses the latest hardware of the ARP-23 for FR-2100 series radars, 18P9002-2 having U44 of 18S9007. The boards level 1 and 2 having U44 of 18S9001 cannot be used for ARP-26. The software has been changed to improve the performance. The major functional differences are; 1) 2) 3) 4) 5) 6) 7) 8) 9) Operational with 42 rpm scanner unit (ARP-23: 36 rpm) "Scenario" in compliance with HSC performance standards (no scenario) A maximum of 3 reference targets (one target) Variable width of automatic acquisition area from 0.5 to 1.0 nm (0.5 nm fixed ) Guard zone alarm for both inward and outward violations (inward only) Vector display time selectable either after 1 min. or within 20 scans (after 1 min.) VBW and VHW speed data in IEC-61162-1 acceptable (not acceptable) TCPA having a minus sign when the ship already passed through the CPA. (always plus) ARPA alarm if watchdog timer signal from the ARP is not received by the SPU boards. (no alarm)
10) Target number of a lost target not being used until all target number are used once. (using target number of lost target)
2-15
Simple ARPA block diagram
2-16
ARPA block diagram
TP12 +12 V TP11 -12 V TP10 +5 V BP U52 PLL VCO FIFO U60 TP2 A/D Converter TP1 TP6 TP7 R103 R104 (MAX) (MAX) Video signal check CR32 TRIG TP5 VIDEO TP3 TP8 Noise blanker TP4 BP
HD
Comparator TRIG Check
HD check BP check
Video Sweep Velocity Converter U59 Memory for Echo Sampler U56 to 58 Land Echo Detection Table ROM U64
TP9(QV monitor) QV output
BP Counter Speed Log LOG I/F GYRO I/F LOG Check GYRO Check
Echo Sampler
Gyro
CR9 (HD Alarm) Status Switch for Error Detection CR10(BP Alarm) CR11(VIDEO Alarm) CR12(TRIG Alarm) CR13(<1250 Hz) CR14(Not Used) U42,47 FEDSP U35 D.P.RAM U45,46 CR15(GYRO Alarm) CR16(LOG Alarm) REF OSC U27
BUS I/F
BUS I/F
18S9007 U44
(Blinks every CR17 2 sec.) Latch U41
D.P.RAM U21,22
ROM U40
RAM U36 to 39
MAIN CPU U2
DIP SW S1 OSC Y1 CR1 (Blinks randomly.)
D.P.RAM U4,11
EEPROM U8
RAM U9,10
ROM U3
Latch U13
To SPU Board's DP BUS
FR2115-SME-16
##
Figure 2.12
Block Diagram of ARP Board
2-17
ARPA target acquisition and Tracking
1. Conditions for manual acquisition The target can be acquired manually under the following conditions.
1) An echo from target must be received for three consecutive sweeps and scans within the acquisition area. 2) The target echo must be smaller than the and echo data (at the front end processor). 3) A target must be within the acquisition area : 0.2 to 32 nm. 4) The ARPA can acquire 30 targets. All 30 may be acquired manually, or 10 manually and 20 automatically. 5) No signal error (TRIG, HD, BP, VIDEO, gyro) shall be detected.
2. Conditions for automatic acquisition The target can be acquired manually under the following conditions.
1) An echo from target must be received for three consecutive sweeps, and seven consecutive scans within the acquisition area. 2) The target echo must be smaller than land echo data (at the front end processor). 3) The target must be within acquisition area: 0.1 to 32 nm (or 24 nm) depending on initial setting. Target echoes behind a land echo within the acquisition area cannot be acquired automatically. 4) 20 targets can be automatically acquired. 5) No signal error (TRIG, HD, BP, VIDEO, gyro) shall be detected.
3. Automatic tracking
1) A tracked target is judged as a lost target when no return is received for nine consecutive scans. When the system detects a lost target, "LOST TARGET" appears on the display and the ARPA symbol blinks. 2) A lost target will be reacquired and tracked when acquisition condition again becomes satisfactory. 3) Automatic tracking is discontinued when the target moves out of the acquisition range (less than 0.1 nm or greater than 32 nm). 4) An acquired and tracked target which moves behind a land echo will be declared as a lost target.
ARPA Land Discrimination
A target is recognized as a landmark and not acquired if it is bigger than the preset value in range or bearing direction. The preset value is entered though the ARPA Initial setting menu.
2-18
ARPA INITIAL SETTING MENU
Accessing Menu for ARPA Initialization. Press the [RADAR MENU] key five times while pressing and holding down the [HL KEY] key.
ARPA INITIAL SETTING Menu (Keying sequence : [PLOT MENU] [0] [0])
TARGET SELECT Selected is minimum size of target echoes which will be judged as land. An echo judged as land cannot be acquired manually or automatically nor is lost target status generated. This discrimination is especially necessary on the S-band radar where the horizontal beamwidth is greater than that of the X-band radar. The settings and their specifications are as follows : 0 : Greater than 600 meters 1 : Greater than 800 meters 2 : Greater than 1200 meters 3 : Greater than 1600 meters 4 : No limit QV SELECT Requires no local adjustment; however, it judges whether an echo is land or not by painting echoes in varying intensity or color. To enable QV SELECT, remove jumper JP11 on the 18P9002 board: 0 : All echoes painted brown (same as QV on previous radars) 1 : Brown color (non-land echoes) Yellow color (land echoes, azimuth direction) 2 : Brown color (non-land echoes) Yellow color (land echoes and target echoes behind land echoes) 3 : Brown color (all echoes) Yellow color (leading and trailing edges of all echoes)
2-19
TARGET OUTPUT DATA Output setting of "RATTM" data, output by J454 on the INT Board. OFF : "RATTM" data not output. REL : "RATTM" data output. Target course shown in relative bearing. TRUE : "RATTM" data output. Target course shown in true bearing. DISP CPA,TCPA Selects wether CPA and TCPA are displayed or not on the screen. START TIME TARGET VECT Selects time to allow the vector to appear on the screen after the acquition 1 MIN: The vector appears on the screen 1 minute after the acquisition. 20 SCANS: The vector appears on the screen 20 scans after the acquisition. (about 50 seconds: 24 rpm, about 30 seconds: 42 rpm) TARGET DATA Course in the target data can be displayed in relative or true mode when the relative vector is selected.
INPUT SIGNAL CHECK
[INPUT SIG CHECK 1]
(Keying sequence : [PLOT MENU] [0] [8]) HD = OK BP = OK T = OK V = OK TGT SEL = 1 LOG PULSE = 200P LOG SPEED = 21.0kt MAN SPEED = GYRO = 239.9 SET = DRIFT = . . kt . ERR (No heading signal input to ARPA Board for 10 seconds) ERR (No bearing signal input to ARPABoard for 10 seconds) ERR (No trigger signal input to ARPABoard for 10 seconds) ERR (No video signal input to ARPA Board for 60 seconds) Setting on AUTO PLOT INITIAL SETTING menu Log pulse setting on RADAR INITIAL SETTING 1 menu Calculated speed using contact closure signal kt Manually entered speed on the radar [FUNCTION] menu AD100 format gyro data being received "Set" setting on AUTO PLOT 2 menu. "Drift" setting on AUTO PLOT 2 menu. Heading alignment value entered on RADAR INITIAL SETTING 1 menu.
HD ALIGN = 000.0
CPU1 COUNTER = 1636 Counts up by five every five second if CPU1 is normal. CPU1 STATUS = 0000 Shows CPU1 status. 0 if normal.
CPU2 COUNTER = 1433 Counts up by 5 every five seconds if CPU2 is normal.
2-20
CPU2 STATUS = 0000 LOG SENSOR EXT SPEED EXT COURSE
Shows CPU2 status. Log sensor type.
0
if normal.
IEC-61162 serial speed data being received; VTG/VHW/VBW If no serial data, xxx.x appears. IEC-61162 serial bearing data being received; VTG/VHW/VBW
:KHQ#VSHHG#GDWD#LV#EHLQJ#IHG#IURP#D#VSHHG#ORJ#RU#HQWHUHG#PDQXDOO\/ # # # # # # # # # # # # # # # # # # # # # # # # # # WKH#FRXUVH#GDWD#LQ#9+:#LV#XVHG1
[INPUT SIG CHECK2]
(Keying sequence : [PLOT MENU] [0] [8] [0]) No. 1 = 1234 Echo count at front end processor. If "0" or "2000 or higher" is dispalyed, adjust the video level with VR103 on the ARP Board. Replace ARP Board if the value does not change at the adjustment.
7R#FKHFN#WKH#IURQW#HQG/#URWDWH#WKH#JDLQ#FRQWURO#NQRE#IURP#IXOO\#FZ#WR IXOO\#FFZ#DQG#UHDG#WKH#HFKR#FRXQW1#,I#WKH#QXPEHU#GHFUHDVHV/#WKH#IURQW HQG#IXQFWLRQV#QRUPDO1
No. 2 = 0362
Number of echoes to be received by the DSP. If the number is not the same as that of No. 1, the gain setting must be decreased. The DSP overloads receiving many echoes. "0" indicates normal. For other than of "0" replace the ARP Board. "3" indicates normal. Heading signal input interval in resolution of 0.01 sec. (240=2.4 sec) Front end processor status. Normal if "0" Number of automatically acquired targets being tracked. Number of manually acquired targets being tracked. Number of lost targets.
No. 3 = 0000 MIN HIT = 3 SCAN = 240 FE STATUS = 0000 AUTO = 07 MAN = 03 LOST = 01
2-21
Block Diagram of RP Board
The RP System program is stored on the flash POM, U3 and the program update is performed by using the program card. The card must be inserted into the upper slot. The CR1 on the RP board lights when the program is replaced with new one. RP marks are generated in the following VRAMs or frames on the RP board respectively, and sent to the SPU board. 1) Track, Mark, and Depth line, etc.; Uses frames 1 (R:U51), 2 (G:U52) and 3 (B:U53) 2) Grid; uses frames 3 (U53) and 4 (U50) 3) Counter line, and coated land area; uses frame 5 (U49) Note that waypoint and nav line data is memorized by the SPU board.
P.F (Activated by H)
Power Fail U15
DIP SW
CR1 INT 2 (PF) INT 0 (VSYNC)
CPU (FR-30) U13
x4(50 MHz) INT 1
(DPRAM)
Address & Data Bus
DRAM 2 M bytes U2 SRAM 256 K bytes U8,9 Flash Memory 1M bytes U3
*Working area for running program
Battery Back-up U5
OSC 12.5 MHz U17 Dual Port RAM RAM 8 K bytes U4 Buffer U22,23,27, 30,31,32
To SPU Board
(HSYNC, VSYNC,CLK)
Character Gen. U33
*(not used)
*Memory for Track & Mark
To SPU Board (Communication Data) IF Board 14P0299
Memory Card (4 M bytes)
Real Time Clock U1 Addres & Data Multiplexer U28,29 OSC U16
32 MHz
AGDC 2 U14
Addres & Data Multiplexer U18,19,20,24,25,26,35 VRAM 4 M bits (5 frames) U49 `53 Horizontal Scroll ASIC U36
FR2115-SME-18
AGDC 2 Controller U15
I/O Port U21
To SPU Board (Video Data)
Figure 2.13
Block Diagram of RP Board
2-22
INPUT/OUTPUT Data on INT Board (03P9252)
Port Name I; input, O: output J442 (O) J443 (O) J444 (O) Slave display TRUE-TRIG, VIDEO ,TRU-HD, BP ARPA-TRIG, VIDEO ,ARPA-HD, BP Signal Name Signal Format
Equipment Connectable Radars having slave func-tion Other make's ARPA
Remarks
Timing between TRU-TRIG and VIDEO adjusted, HD adjusted, BP:360 pulse/rotation. Timing between ARPA-TRIG and VIDEO adjusted on ARPA, HD adjusted BP:360 pulse/ rotation. Generating HM, NU/TM modes, True EBL, True vector(E-PLOT), signal processing 1/2/3, True echo trail, ARP-26. Ship's speed data, TM mode, True vector (E-PLOT), signal processing 1/2/3, True echo trail, ARP-26. Buffer Board (03P9229) required I:L/L, Speed/Course, L/L of +cursor, Dated & Time, Current , Depth, etc.
External ARPA
J446 (I)
HDG
AD10 format, 25 msec
GC-1/2/6/7/8 AD-10/10S/100 DS-30/70 CI-30/60/80 GP-500 GP-500MK2 Monitor,Printer I:Navaid; GP-70MK2 GP-80 GP-500MK2 O:PC
J448 (I)
Speed
Contact closure (200 or 400 pulses) R, G, B, H-SYNC, V-SYNC
J449 (O)
Remote display
J450 (I/O)
Nav data
NMEA0183 V2.0 (Current Loop)
O:RSD,OSD
IEC 61162 J452 (O) J453 (I) J454 (O) External buzzer Analog ARPA data (RS-422 Level) +5 V Analog data NMEA0183, V2.0 (RS-422 Level) NMEA0183, V2.0 J455 (I) J456 (I/O) J457 (I/O) J458 (I) INS data RS-232C RJ-7 RJ-7 (Current Loop or RS-422 Level) RS-232C level RJ-7 Input/Output TRUE-TRIG, VIDEO ,TRU-HD, BP PC RJ-7 RJ-7 or Radar having output for slave display Additional Circuit e.g. Buffer Board
Timing between TRU-TRIG and VIDEO adjusted, HD adjusted, BP:360 pulse/rotation. +5 V: 100 mA max. +12 V: 200 mA max. -12 V: 200 mA max. For program update
Buzzer
150 mA max.
Not used GD-551, PC
$RATTM (ARPA Tracking Target Data) Receiving VHW/VBW from DS-30/ 50 etc., HDT, HDM and HDG.
INS
J463 (O)
I/F Power Supply
+5 V, -12 V, +12 V
2-23
Sentences Receivable at J450 on INT-9170
Data to be displayed
Sentence OS & Cursor Position RNG & BRG to WPT SPD Water Temp. Water Depth Date & Time ARP-26 SPD ARP-26 External WPT
BWC BWR DPT DBT DBK DBS GGA GLL VBW VHW MTW RMA RMB RMC VTG ZDA X X X
X
X
X
X X X X X X X
X
X X X
2-24
Radar and ARPA output signal from INT-9170 (J442, J443 and J444)
TRIG Signal (TRIG) Polarity/Voltage : Positive, +12 V Pulselength : 4 µs (J444) 5 to 10 µs (J442/J443)
VIDEO Signal (VIDEO) Polarity/Voltage : Negative, 4 Vpp Characteristic : Input of amplifier GAIN/STC : Not controlled
BEARING Signal (BP) Pulse : 360 pulses/one ant. rotation Polarity/Voltage : Positive, +12 V Duty Cycle : 50% 20%
HEADING Signal (HD) Polarity/Voltage : Negative, +12 to 0 V Timing : Negative going edge
2-25
Monitor signal from J449 (requires buffer circuit)
1. CRT required (non-interlace)
370 mm(1280 dots)
295 mm (1024 dots)
275 mm (720 dots)
2. Video signal
H - sync signal
63.974 kHz (15.63 us), 1696 dots 1.18 us,128 dots 0.59 us, 64 dots 11.80 us,1280 dots 2.06 us, 224 dots
Video signal
V-sync signal
60.013 Hz (16.66 ms) ,1066 dots 47 us, 3 dots 16 us, 1 dots 16.00 ms,1024 dots 593 us, 38 dots
Video signal
FR2115-SME-11
2-26
Power Supply Circuit (DC)
DC PWR Board (03P9246) The PWR board contains a main-inverter, a sub-inverter, and protectors. The main-inverter produces +24 V and +32 V (for scanner motor), while the sub-inverter produces 12 V, +12 V, +32 V, and +140 V from +24 V, output of the main-inverter. +5 V is generated by chopping +24 V. Power fail (P.F.) signal generator outputs "High" signal normally and "Low" signal when the main-inverter fails. +24 V is adjusted by VR51. Main-inverter: With the POWER switch pressed, +12 V regulator, Q1 turns on, and over- and low-voltage protectors and switching regulator controller are powered up. The protector U1 activates when ship's main is lower than 19.5 VDC and higher than 42 to 46 VDC. The switching frequency is adjusted by VR1. Sub-inverter: The sub-inverter produces 12 V, +12 V, +32 V, and +140 V from +24 V, the output of the main-inverter. These lines are not stabilized, but the +24 V line is stabilized by the main-inverter. The switching frequency is adjusted by VR71. Protector: Over-current detector U91in the scanner motor power line (ANT MOTOR line) activates when the current is 6 A or more for 0.8 seconds. The short circuit protector U72 operates when +140 V line is short-circuited. The output from the U72 is latched by Q33 and then send to the switching regulator controller U11. Power for Scanner Motor: Rectified +32 VDC is applied to the scanner motor through the ANT MOTOR line, MOTOR(+) and MOTOR(-). The F/V (Frequency to Voltage) converter U93 receives bearing pulses (BP) from the scanner unit and outputs DC signal depending on the frequency received. The comparator Q94 compares the output of the F/V converter with the antenna speed data, 24 rpm or 42 rpm. If the antenna speed is lower or higher than the rating, the comparator outputs the signal to control the scanner motor supply voltage. Thus, the motor rotates stably. The VR91 adjusts the antenna rotation to 24 rpm (no adjuster for 42 rpm). The number of the antenna rotation can be read on the self-test menu. The table below summarizes how to select the antenna speed data.
Rotation 24 rpm 42 rpm JP91 Removed Removed JP92 Removed Connected R98 4.7 k ohms 1.2 k ohms Menu selection Disregarding menu setting Ant. revolution, Radar 3 menu; H
2-27
DC PWR Board (03P9256)
J103 6 B.P 24 rpm(144 Hz) 48 rpm(250 Hz)
Main-inverter
T1 H or L
F/V Converter U93 +32 V
Chopper
Comparator
J103 5 ANT.SPEED *Menu-Selection Hight Speed : H
CR52
Smoothing Circuit
CR94,Q97
Q94
Chopper Control U92
VR91 (24 rpm adjustor)
+24 V CR51 Soft Start Control
J103 7 ANT.ON/OFF *TX : H ST-BY : L
Driver
U61,CR61
J101 1,2, Ship's Mains 3,4 5.6, 24/32 Vdc 7,8
Input Filter C1,C2,C3 Q11~14 Chopper
Overcurrent Detector U91
J103 1,2 3,4
MOTOR(+) MOTOR(-)
J105 4,5
+5 V
2-28
VR51 (+24 V adjustor)
J102
Power Switch
1
3
Chopper Control
J107
Overcurrent Detector U81 Short-circuit Protector U72
+12V Reguletor Q1
Switching Regulator Controller U11 Voltage Detector U51
1
+24 V
Voltage Protector Latch Q33 Switching Regulator Controller U71
Sub-inverter
T71
Over and low Voltage Protector U1
Low/High Voltage Sig.
VR1 (Main-inverter freq adjustor)
Driver Q71,72
VR71 (Sub-inverter freq adjustor)
CR81~86
J105 10
+140 V +32 V +12 V -12 V
P.F. Sig. Generator Q81,U33
P.F
FR2115-SME-27B
Power Supply Circuit (AC)
AC PWR Board (03P9245) The PWR board contains a main-inverter, a sub-inverter, and protectors. The main-inverter produces +24 V and +32 V (for scanner motor), while the sub-inverter produces 12 V, +12 V, +32 V, and +140 V from +24 V, output of the main-inverter. +5 V is generated by chopping +24V. Power fail (P.F.) signal generator outputs "High" signal normally and "Low" signal when the main-inverter fails. The RP data is backed-up when the P.F. signal is received. +24 V is adjusted by VR51. Main-inverter: With the POWER switch pressed, +12 V regulator, Q1 turns on, and over-voltage and lowvoltage protector, relay drive circuit, and switching regulator controller are powered up. The protector U1 activates when ship's main is lower than 85 VAC and higher than 135 to 150 VAC. If ship's mains is higher than 135 to 150 VAC, the relay in the input line, K1 is turned off by the signal from the protector U1, and no power is supplied to the main-inverter. The switching frequency is adjusted by VR1. A rush current protector Q1 and R2 prevents rush current from being flow into smoothing capacitors C11 and C12. When the smoothing capacitors are charged to the rated voltage, the main inverter starts oscillating. The output of the T1 turns on triac Q1 and the R2 10 ohms, 5 W is short-circuited. Ship's mains 110 VAC or 220 VAC is jumper selectable as show in the table below. Smoothing capacitors C11 and C12 are charged by 100 to 170 VDC respectively. +5 V is generated from 24 V by a chopper IC.
Ship's Mains 110 VAC 220 VAC JP1 Connected Removed JP2 Connected Removed JP3 Connected Removed JP4 Removed Connected 5 A Fuse 10 A
Sub-inverter: The sub-inverter produces 12 V, +12 V, +32 V, and +140 V from +24 V, output of the maininverter. These lines are not stabilized, but the +24 V line is stabilized by the main-inverter. The switching frequency is adjusted by VR71. Protector: Over-current detector U91in the scanner motor power line (ANT MOTOR line) activates when the current is 6 A or more for 0.8 seconds. The short circuit protector U72 operates when +140 V line is short-circuited. The output from the U72 is latched by Q33 and then send to the switching regulator controller U11. Power for Scanner Motor: Rectified +32 VDC is applied to the scanner motor through the ANT MOTOR line, MOTOR(+) and MOTOR(-). The F/V (Frequency to Voltage) converter U93 receives bearing pulses (BP) from the scanner unit and outputs DC signal depending on the frequency received. The comparator Q94 compares the output of the F/V converter with the antenna speed data, 24 rpm or 42 rpm. If the antenna speed is lower or higher than the rating, the comparator outputs the signal to control the scanner motor supply voltage. Thus, the motor rotates stably. The VR91 adjusts the antenna rotation to 24 rpm (no adjuster for 42 rpm). The number of the antenna rotation can be read on the self-test menu. The table below summarizes how to select the antenna speed data.
Rotation 24 rpm 42 rpm JP91 Removed Removed JP92 Removed Connected R98 4.7 k ohms 1.2 k ohms Menu selection Disregarding menu setting Ant. revolution, Radar 3 menu; H
2-29
AC PWR Boaed (03P9245)
J103 6 B.P 24 rpm(144 Hz) 48 rpm(250 Hz)
Main-inverter
T1 H or L
F/V Converter U93 +32 V
Chopper
Comparator
J103 5 ANT.SPEED Menu-Selection Hight Speed : H
CR52 Q94
Smoothing Circuit Q1
CR94,Q97
Chopper Control U92
VR91 (24 rpm adjustor)
Rush Current Protector Q1
+24 V CR51 Soft Start Control
CR2 Input voltage Selector
110 or 220 VAC
J103 7 ANT. ON/OFF TX : H ST-BY : L
Relay
K1 Driver
U61,CR61
J101
Ship's Mains 100/110/115 220/230 VAC
1,2
Overcurrent Detector U91
J103 1,2 3,4
MOTOR(+) MOTOR(-)
5.6
Input Filter L1,C3,C4 Relay Driver Q26 Q11,12 Chopper
J105 4,5
+5 V
2-30
VR51 (+24 V adjustor)
J102
Power Switch
7
8
Chopper Control
ON : +12 V ON : +12 V
J107
Overcurrent Detector U81 Short-circuit Protector U72
+12 V Regulator Q21
Switching Regulator Controller U31 Voltage Detector U51
1
+24 V
Voltage Protector Latch Q24 Voltage Protector Latch Q36
Sub-inverter
T71
Switching Regulator Controller U71
High Voltage Sig.
Over -and low- Voltage Protector U1
Low Voltage Sig.
VR1 (Main-inverter freq adjustor)
Driver Q71,72
VR71 (Sub-inverter freq adjustor)
CR81~86
J105 10
+140 V +32 V +12 V -12 V
P.F. Sig. Generator Q81,U33
P.F
FR2115-SME-27
2.3 Scanner Unit
General
New cast aluminum scanner gearbox and new series of streamlined antenna are employed on the FR-2115 and FR-2125 radars. These are not compatible with the traditional Furuno scanner gearbox and radiator used for a long period. The mounting dimensions are remained unchanged. Radiator A feeder waveguide is built-in the radiator XN-12 AF, XN-20 AF and XN-24 AF for easeinstallation. The XN-20 AF and XN-24 AF are the same electrical characteristic with XN-3 A and XN-4 A respectively. Gear Box The mounting dimensions, the size of the gear box, and cabling layout have not been changed from the traditional Furuno radars. Changed is the radiator mounting bracket for a new radiator. The gear box can be equipped with a motor of either 24 rpm or 42 rpm type. RF Unit The 10 kW and 25 kW RF units are the same in size. The magnetron of 25 kW is a new type, smaller in size. The RF modulator generates short pulse 1 (S1) which has pulselength of 0.07 us and pulse repetition rate of 3000 Hz. Traditionally, the S1 is 0.08 us and 2200 Hz. The magnetron current monitor circuit ensures a defective magnetron being found easily. When the magnetron is short- or open-circuited, the magnetron current detector reads 1 to 1.5 V.
2-31
Block Diagram of Scanner Unit
TX-HV 330 V(10 kW), 530 V(25 kW)
Signal is generated when 530 V is supplied to 10 kW RF unit.
Radiator RX
TRIGGER Board : 03P9243 A(10 kW) 03P9243 B(25 kW)
TX OFF Comparator
TX-TRIG
T801 MODULATOR Board : 03P9244 A(10 kW) 03P9244 B(25 kW) 10 kW : RT-9025 25 kW : RT-9023
TX PROTECT Relay K1
on by S1 for reducing MB.
TX Magnetron V801
Circulator HY801
Timing Disk
BEARING SIG. GEN. Board MP-3795
Photo-Interrupter
+12 V
TX Pulse Generator U4(PLD) OSC U5
48 MHz Trigger 1-4 M1/M2
U9
14 19 V Variable
VTRIG
VR1( )
Regulator U1
10 kW : MG5241 25 kW : MG5436
U901
on by S1 for PWR up
Diode Limiter CR880
Reed Sw S801
P/L A,B,C P/L S1 S2 M1 M2 M3 L
Driver Q1 Q12
C A L H L L H H
B L L L H H H
A C
L L H L L H
Trigger 1-4
Driver Q5 Q20
FET Q1 Q4
Magnet RU-9253 or RU-9371 MIC U801 Motor B801
Waveform Reshaper, Amp. U902
S1 pulse
Switching Q901, Q902
(H) (12 Vdc)
Regulator U7, Q5
VR1 25 kW: 8.2 8.4 Vdc(S1) 10 kW: 7.4 7.6 Vdc(S1) (6.3 Vdc supplied to magnetron, voltage drop by pulse trans.) 1 1% of accuracy Magnetron
24 rpm(D8G-516) 42 rpm(D8G-571)
Heater Voltage Check Magnetron
*25 kW: 7.4 8.1 Vdc(L) 10 kW: 4.6 5.3 Vdc(L)
Buffer U10
BW
MBS L MBS T MBS SIG.
IF Amp. Board 03P9232
Gate Pulse Generator
MBS Q603, U612
TP601 (output of U601)
U611 Buffer Amp. Amp. Mixer
B.W. Selector U604 B.W. Adjustor (Long ranges) T603, T604
(Short ranges)
TP604
IFoutput
Q627, Q628
4.5 5Vpp
Log Amp. U602, U610, U601
Cascade Amplifier Q601-Q602
IF
TP608
Log Amp. Q625, Q626 U603
TP602
Cascade Amplifier Q609, Q610
TP605 (+7 V) TP606 (-9 V) TP607 (+9 V)
TP603
Tuning Indicator (TUNING IND.)
Buffer Amp. Q619, Q620
Tuning Circuit
Q614, Q615
+5 V Regulator
+12 V R. MONI. TUNING CONT. Heading Bearing
U609
HD FL SYNC P
FR2115-SME-27A
2-32
Chapter 3. ADJUSTMENT
Hazardous Voltage This equipment uses high voltage electricity which can SHOCK, BURN or cause DEATH. Always make sure the electrical power is turned off before attempting to change a component or inspecting the inside of the equipment. A residual charge may exist in capacitors, even with the equipment turned off. Always short all supply lines to the chassis with an insulated screwdriver or a similar tool before touching the circuit. Working on the Scanner Unit Mast Work on the scanner unit mast is dangerous, and doubly so if the proper precautions are not taken. 1. Post an appropriate warning sign near the display unit to indicate that work on the scanner unit is being performed, to prevent accidental application of the power to the scanner unit. 2. Wear a safety helmet and always be aware of where the scanner radiator is.
3-1
3.1 Adjustment (Display Unit)
Location of Major parts
Figure 3.1
Display Unit, front view
Control panel
Handle
Stay
Display pedestal This cover is removed to gain access to SPU, ARP, and RP Boards.
Figure 3.2
Display Unit, inside view
3-2
Mother Board (03P9251) DTB-2 (T.B.) GC-8 Board (64P1106) INT Board (03P9252) TX-HV Board (HV-9017) RP Board (14P0298) ARP Board (18P9002B)
Figure 3.3
Display pedestal, cover removed
SPU Board (03P9253)
TX HV Fuse (F3 : 0.5 A)
RF Video Level adjustor : R21
SPU Board Video Level Adjuster : R140 Fuse for P.M. (F402 : 0.5 A) Fuse for P.M. (F401 : 0.5 A) PM optional Board (03P9225)
External Video Level adjustor : R134
Figure 3.4
Display pedestal, W/O GYRO CON Board
3-3
PTU Board (AC : 03P9245, DC : 03P9246) Shield cover removed
Figure 3.5
Display Unit, top view, drawing forward
Power Switch for Maintenance Fuse (F1) Fuse (F2)
Figure 3.6
Display pedestal, for side, shield cover removed
3-4
SCREEN HV ADJ CRT ADJ Board (PBH132-1) MAIN Board (PBH172-0) HPOSI Under the cover
FOCUS
IF3-A10 Board (UBH188)
VIDEO Board (PBH173) SOCKET Board (UBH182) DEGAUSS Board (PDM9025) INT Board PBH183-0
Figure 3.7
Display Unit, top view, cover removed
Adjustment of CRT
The CRT is adjusted by pressing the buttons on the CRT ADJ Board. The buttons locate as shown in the figure below. The LED D701 lights normally.
Figure 3.8
Adjusters on the CRT ADJ Board
MENU button: turns on/off the menu. INPUT button: selects Input 1 or Input 2 (not used). SEL+/SEL- buttons: selects items (+: moves cursor right or downward, -: moves cursor left or upward) ADJ+/ADJ- buttons: expands (+) or shrinks (-) the screen. 1) Brightness and Contrast
3-5
2) Display Size Press the MENU button on the CRT ADJ Board, PBH132-1 and the following menu will appear on the screen.
Steps 1) Set the radar to TX. 2) Select the background color to blue : [RADAR MENU] [0] [2]. 3) Check items 1) to 5) right for rating. 4) Adjust the CRT, if necessary. How to change meun setting to default. Keep pressing the MENU button until UTILITY MOD menu appears. Press SEL+ once to select "INITIALIZE". Press MENU. Within 5 seconds after the message INITIALIZE MODE CAUTION REPLACE FACTORY SETTING appears, press ADJ+.
Ratings
1) Radar display area must be 280 3 mm.
280 mm
3 mm
2) Display area must be centered. 3) Heading Line must be 0 1 .
1.0
4) Pincushion must be within 3 mm.
3 mm
5) D701 must be on.
FR2115-SME-62
3-6
Location of parts on SPU
03P9253Board
TP1 CR8 CR7 CR6 CR5 CR4 CR3 CR2 CR1
TP11
TP13 TP12 TP5 TP6
TP9
TP8 TP7 R140 TP4 TP3 TP2
Test points and Ratings
TP No. TP1 TP2 TP3 TP4 TP5 TP6 Signal GND GND TUNE IND RF VIDEO TX TRIG SAMPL T Approx. 1 to 3.2 VDC 3.9 to 4.1 Vpp 4 V to 12 V, positive, approx. 3.5 to 15 us S1: 3005 to 3976 Hz, S2: 2790 to 3505 Hz M1: 1502 to 1602 Hz, M2: 976 to 1041 Hz M3: 976 to 1041 Hz, L: 583 to 621 Hz Approx. 64 kHz Approx. 60 Hz Approx. 2 V to 32 V Approx. 5 V 3.9 to 4.1 Vpp, negative, main bang level Adjusted by R140 TX TX Range: 12 nm IR: OFF STC: fully ccw FTC: fully ccw Ant. Height: 10 m Range: 12 nm Gain: fully cw STC: fully cw Rating TX (except for maximum range) Condition
TP7 TP8 TP9 TP11 TP12
H SYNC V SYNC TUNE V VIDEO VIDEO LEVEL
TP13
STC CURVE
4 us: 0.8 to 1.1 V, 10 us: 1.3 to 1.6 V 20 us: 1.9 to 2.3 V, 40 us: 2.7 to 3.0 V 60 us: 3.3 to 3.7 V, 90 us: 4.1 to 4.5 V 120 us: 4.3 to 4.7 V
3-7
Location of Parts on ARP
18P9002Board
R103 CR14 CR13 CR16 CR15 CR12 CR11 CR10 CR9 CR17 CR1 R104 TP7 TP6 TP8 ROM (U64) JP11 TP9 ROM (U3) TP1 S1
TP11
TP12
TP10
TP4 TP3 TP2 ROM (U40)
Test points and Ratings
TP TP1 TP2 TP3 TP4 TP5 TP6 TP7 TP8 TP9 TP10 TP11 TP12 Signal GND VIDEO GND BP INPUT VIDEO INPUT OFFSET (-) OFFSET (+) GND QV OUTPUT +5 V -12 V +12 V Approx. 4 V(main bang level) 4.8 to 5.2 V -11.0 to -13.0 V 12.1 to 13.5 V Approx. 10 to 12 V Approx. 4 Vpp 0.09 to 0.13 VDC, adjusted by R104 Approx. 5 Vpp (main bang level) Rating TX Condition
3-8
Location of Parts on RP
14P0298Board
CR1 S1
Battery (BT1)
Flash ROM (U3)
3-9
Location of Parts INT Board 03P9252
TP6 R21 J450
TP1
J457
J445 TP2 J454
J442 J458 J443 TP3 J453 J444
J448 J469 J455 J446 J468 J466 J467 J462
J451 J463 J471 J445
J456
J465
R151 R153
TP4 J452 TP5
R134
Test points and Ratings
TP No. TP1 TP2 TP3 TP4 TP5 TP6 Signal VIDEO (RF Input) GND VIDEO (EXT Input) ANALOG (Input) GND VIDEO (Output) 3.9 to 4.1 Vpp, main bang level RF video output adjusted by R21 EXT video output adjusted by R134 Selected thru menu Approx. 1 to 3.2 VDC Same as output of connected equipment Rating Approx. 4 Vpp, main bang level TX Condition
3-10
Location of Parts on GYRO Board
64P1106
JP3
JP1 F1 F2 F3 F4 JP5 JP2 JP4 R42 CR21 CR22 JP7 TP1 JP8
BT1
Test points and Ratings
TP No. TP1 +5 V Signal Rating 5.19 to 5.21 VDC, adjusted by R42 Condition
3-11
Location of Parts on PTU Board, for DC set
VR91
03P9246
VR71 CR12 CR11
JP91 JP92 J105 VR1 VR51 J104
J103
TP2 TP1 TP4 TP3
Test points and Ratings
TP No. J104 # 1(+) & # 3(-) J105 # 1(+) & # 7(-) J105 # 2(+) & # 7(-) J105 # 4(+) & # 7(-) J105 # 9(+) & # 7(-) TP3 or TP4 & Chassis TP1 or TP2 & Chassis J103 # 1(+) & # 3(-) Inverter freq., U31 Inverter freq., U71 MOTOR (+) and (-) 42.75 to 47.25 kHz, adjusted by VR1 42.75 to 47.25 kHz, adjusted by VR71 Approx.24 rpm If less than 24 rpm, turn VR91 cw. If more than 24 rpm, turn VR91 ccw. No adjuster for 42 rpm Test display shows antenna speed. -12 V -11.0 to -13.0 VDC +5 V 4.8 to 5.2 VDC +12 V 12.1 to 13.5 VDC +32 V 27.0 to 35.0 VDC TX Signal +140 V Rating 138 to 142 VDC, adjusted by VR51 Condition
3-12
Location of Parts on PTU Board, for AC set
CR12 CR11 JP3
03P9245
JP2
JP91 VR91 JP92 J105 VR1 VR51 J104 JP1 VR71 J103
Test points and Ratings
TP No. J104 # 1(+) & # 3(-) J105 # 1(+) & # 7(-) J105 # 2(+) & # 7(-) J105 # 4(+) & # 7(-) J105 # 9(+) & # 7(-) Q31 Collector & Chassis FL71& Chassis J103 # 1(+) & # 3(-) Inverter freq., U31 Inverter freq., U71 MOTOR(+) And (-) 42.75 to 47.25 kHz, adjusted by VR1 42.75 to 47.25 kHz, adjusted by VR71 Approx. 24 rpm If less than 24 rpm, turn VR91 cw. If more than 24 rpm, turn VR91 ccw. No adjuster for 42 rpm Test display shows antenna speed. -12 V -11.0 to -13.0 VDC +5 V 4.8 to 5.2 VDC +12 V 12.1 to 13.5 VDC +32 V 27.0 to 35.0 VDC TX Signal +140 V Rating 138 to 142 VDC, adjusted by VR51 Condition
3-13
Location of Parts on HV-9017 Board
J481
JP2
JP1 J482 CR21,RED
CR23, GRN
VR1
TP1
TP2
TP3
TP4
Test points and Ratings
TP No. TP1 TP2 TP3 TP4 J482 #1 & Chassis 0 V line Sub inverter switching freq. Main inverter Switching freq. TX HV 42.75 to 47.25 kHz 42.75 to 47.25 kHz 10 kW: 310 to 350 V 25 kW: 520 to 580 V TP3 and TP2 TP4 and TP2 TX HV also measurable at TB2 #1 in display pedestal Signal Rating 34.7 to 35.3 VDC, adjusted by VR1 Condition TP1 and TP2
3-14
3.2 Adjustment (Scanner Unit)
Figure 3.9
Scanner Unit, side view (XN-20AF
Figure 3.10
Antenna radiator, bottom view (XN-20AF)
!" #
#$ %
Figure 3.11
Scanner Unit, top view. Antenna radiator removed
3-15
&
#
'(")*
Figure 3.12
Scanner Unit, stern side, cover removed
& +
-./ , #
Figure 3.13
Scanner Unit, stern side, cover and RF module removed
# 0+1
431
7
23 - 2 .3"4516 , #
Figure 3.14
Scanner Unit, fore side, cover removed
3-16
FR-2125
RTR-063
Circulator (RC-3686) MIC (RU-9253/9371) IF Amp Board (03P9232)
RFC Board (03P9243B)
VR1 on MODULATOR Board (03P9244B) for magnetron current adjustment
Figure 3.15
RF module, top view
MODULATOR Board (03P9244B)
Magnetron (MG5436)
Pulse Transformer (RT-9023)
Figure 3.16
RF module, bottom view
3-17
Location of Parts on IF AMP
VR601
03P9232Board
TP606
TP604
TP607 TP605 TP603
TP608 TP602
Test points and Ratings
TP No. TP601 TP602 TP603 TP604 Signal Output of U601 Output of U603 TUNING IND. MBS Factory-use Factory-use 1.5 to 3.5 VDC 2.2 to 2.4 V, positive, 0.07 to 0.55 us TX (Varies according to MBS T and MBS L settings) ST-BY Rating TX Condition
TP605 TP606 TP607 TP608 J611 # 3 & Chassis J611 # 2(+) & # 10(-) VIDEO
+7 V -9 V +9 V Output of U611 TUNING IND.
+5.7 to +6.7 VDC -8.7 to -9.3 VDC +8.7 to +9.3 VDC Factory-use 1.5 to 3.5 VDC
TX, long range, Maximum tuning indication ST-BY, short range TX (Field-adjustment prohibited!!)
R.MONIT Output of U6