Japan Radio Co. JMA-1011, RADAR1000MK II Field Service Manual
Below you will find brief information for Radar 1000 MK II. This manual provides details on the marine radar equipment, covering specifications, technical descriptions, troubleshooting guidance, and maintenance procedures. It includes information on range scales, accuracy, display features, scanner unit components, transmitter/receiver circuits, and the display unit's functionalities, including video input and system control.
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MARINE RADAR EQUIPMENT
RADAR1000MK ff
JMA-1011
FIELD SERVICE MANUAL
[ JRC]
3apan,
Radio Co., .lid.
CODE No. 7ZPRD0594
SECTION
1.
SECTION 2.
SECTION 3.
SECTION 4.
CONTENTS
SPECIFICATIONS
TECHNICAL DESCRIPTION
TROUBLESHOOTING
MAINTENANCE
APPENDIX PARTS LIST
MACHANICAL ASSEMBLY DRAWING
SCHEMATIC DRAWING
1/34
SECTION 1
SPECIFICATIONS
2.1 GENERAL
1. Maximum range
2. Minimum range
3. Range scales
Range (NM)
0.125
0.25
0.5
0.75
1.5
3.0
6.0
12.0
16.0
4. Range discriminations:
5. Range rind accuracy:
6. Bearing accuracy:
7. Display device:
8. Environmental conditions:
Scanner unit Temperature
Humidity
Display unit Temperature
Humidity
9. Input power
10. Power consumption:
11. AVR
16 Nautical Miles
Less than 25 m on the 0.125 NM range
Number of Rings
2
2
2
3
6
6
6
6
4
Range ring Interval (NM)
0.0625
0.125
0.25
0.25
0.25
0.5
1.0
2.0
4.0
Less than 25 m
Better than;± 0.9% of maximum
Maximum range of the scale in use, or 8 m, whichever is the greater.
± 1 degree
LCD: 115 x 86.4 mm (320 x 240 pixels)
-15°C to +55°C
UP to 95% at +35°C
-l0°C to +50°C (Except LCD)
0°C to +50°C (LCD)
Note: LCD performance will be slightly deteriorated.
In response speed and brightness during extreme low temperatures.
UP to 95% at +35°C
10.2 V to 16V
Approx. 30W
Floating A VR system
2.2 SCANNER UNIT
1. Dimensions:
Diameter
Height
2. Mass:
3. Polarization:
4. Beam width:
Horizontal
Vertical
5. Side lobes
6. Rotation:
318mm
200mm
Approx. 4 Kg
Horizontal
7° normal
30°
-20 dB or greater
Approx. 32 rpm
2/34
7. Transmitter frequency:
8. Peak power output:
9. Pulse length/PRF:
10. Duplexer:
11. Mixer:
12. IF amplifier:
13. Noise figure:
14. Characteristic
9445 MHz l.5KW
0.08us/2250Hz (0.125, 0.25, 0.5 ,0.75 NM)
0.3us/1200Hz (1, 1.5 NM)
0.8us/600Hz (3, 6, 12, 16 NM)
T-junction with diode Limiter
MIC frontend
Center frequency 60 MHz
Bandwidth 3/10 MHz
Less than 10 dB
Linear
2.3 DISPLAY UNIT
1. Dimensions:
2. Mass:
3. Mounting:
4. Video:
5. Tuning:
6. Bearing scale:
7. VRM:
8. EBL:
9. Alarm:
10. Off Center:
11. Planned TX:
Width
Depth
Height
12. Language:
13. Features:
14. External input:
NAV-AID
Compass
187mm
83mm
183mm
Approx. 1.2 Kg
Table, Overhead, or Flush mount
4 levels quantitized
Auto/Manual
360 ° scale graduated at intervals of 5 °
3 digit readout
3 digit readout
Audible alarm with zone mark
1/4 radius
Rotation period 10, 20 or 30 scans
Repetition period 3, 5, 10, 15 min
English, French, Spanish, Italian, Norwegian, German
VRM, EBL, Cursor with LL,
Interference rejection, Target expansion,
Target alarm, LL or TD readout, Waypoint with LL,
Offset, Timed TX, Target Trail, Auto tune
NMEA0183 (RMA, RMB, RMC, GLL, GTD, VTG, BWC)
NMEA0182
NMEA0183 (HDM, HDT, VHW, RSC)
3/34
SECTION2
TECHNICAL DESCRIPTION
2.1 GENERAL
The theory of operation for the RADAR 1000 MK II is presented here with descriptions following the functional block diagram circuits.
2.2 SCANNER UNIT
The scanner unit consists of the RF PCB radiator, the motor, radiator rotating mechanism, bearing reset assembly, and the transmitter/receiver unit. These components are all housed within the 12.2" radome. The functional Block Diagram appears in Figure 2.
2. 2. 1 RADIATOR
The RF PCB radiator forms the main RF transmitting beam for the radar transmitter and becomes the receiving antenna during the receive cycle. The beam formed by the patched array styled PCB at half power points is 7° horizontally and 30° vertically, be direction of the beam
(maximum radiated power) is essentially perpendicular to the radiator surface.
Radiator
Main boam
I
'
(!
I
.
\ I 1
,\i rr
~....-·..._-=======
Fig.2-1 RADIATION PATTERN
Side lobes
4/34
2. 2. 2 RADIATOR ROTATING MECHANISM
The mechanical coupling between the PCB radiator assembly and the motor is effected by a reduction drive gear. The antenna motor normally rotates the radiator at approximately 32 rpm.
2. 2. 3 MOTOR
The antenna drive motor is used stepping motor. When radar is stand-by mode, J3-l, 3, 4, 6 are
+ 12V. When Transmitter mode, output of IC6-12 is changed 136. 5 Hz to 256 Hz at first 7 step.
After 7 steps, output of IC6-12 is stable at 250 Hz.
The waveform of J3-1, 3, 4, 6 are as follows:
1 3. 5 V
1. 5
V
J3-6
J3-1
J3-4
J3-3
2. 2. 4 BEARING RESET SWITCH
The bearing reset switch, or otherwise referred to as the "heading reference switch", produces the signal to reset the scan converter circuitry to 'O" when the permanent magnet fitted on the main gear passes across the reed switch SlOl. The reset signal (BZ) is sent down to the bearing reset circuitry in the display unit and synchronizes the scanner position to the display sweep. The BZ signal is sent down to the display together with the Tune indication signal at J2-6.
2.3 TRANSMITTER
The transmitter consists of the solid state modulator circuits, the power supply, and the 1. 5kW magnetron.
A. Modulator
A solid state type pulsar design is used by the modulator and primarily consists of a pulse generator circuit, power MOSF'ET switch, and pulse transformer.
When setting the X-MIT/STBY key on the control panel at the display unit to "ON", the transmitter trigger pulse is sent via the inter unit cable from the transmit trigger generator circuit in the display unit to the J2-2 in the modulator.
The switching regulator power supply provides +250Vdc to charge the capacitor (C39). In addition to the high voltage for the modulator, the power supply also provides the magnetron heater voltage (6Vdc) and the operating 12Vdc for the trigger circuits and display unit.
5/34
Generally the pulse width of the pulse generator circuit is controlled by the range key selectors on the front panel at the display unit. Three different pulse lengths: 0.08usec, 0.3usec and 0.8usec (in accordance with the range scale) can be provided. The pulse repetition frequency (PRF) always changes automatically to match the selected operating pulse length (See TABLE 1 ).
Upon receiving the positive trigger pulse, TR5 generate a differential waveform at C35, R39-R44 setup the discharge period of this waveform to generate a short (80ns ), medium (300ns ), or long
(800ns) gate to ICl-6. The pulse is amplified and applied to the gate of TR14 that will conduct for the selected pulse length drawing current through the primary of the Pulse Transformer (T2) generating a
1. 85kV pulse to the magnetron cathode.
TABLE 1 RANGE, PULSE LENGTH, AND PRF RELATIONSHIPS
Range Pulse Length PRF
0.125, 0.25, 0.5, 0.75 nm
1, 1.5 nm
3, 6, 12, 16 nm
0.08us
0.3us
0.8us
2250 Hz
1200 Hz
600Hz
RECEIVER
The receiver circuit consists of the passive diode limiter, the MIC Front End and the Receiver IF circuit.
The MIC Front End (ElOl, NJT1967) device consists of the single balanced mixer, and the local oscillator. The received radar echo signals at 9445 MHz are then sent into the single balanced mixer of the MIC. The MIC Local Oscillator, tuned by the adjustment of the operator's Tune control on the display unit front panel to be 60 MHz higher than the magnetron's operating frequency for maximum target detection, is also fed into the single balanced mixer. The single balanced mixer output of 60 MHz echo signals is then coupled into the 60 MHz IF amplifier.
RECEIVER CIRCUIT
The Receiver circuit includes the 60 MHz IF amplifier, bandwidth control circuits, video detector, tune indicator circuitry, the MBS amplifiers and the video output circuit.
IF Amplifier Circuit: The IF amplifier consists of low-noise gain controlled transistor amplifier
TR15 and gain controlled IC amplifiers IC9 with bandwidth selector and IClO.
TR15, IC9 and IClO are controlled by the gain and STC control signals generated by the display unit. Maximum gain is obtained when the voltage level at IC9-5 and ICl0-5 reaches 4 volts.
The band width selector ICl and TR15 enables to change load resistor so the receiver has either a
10 MHz or a 3 MHz bandwidth characteristic. The selection depends on the pulse length selector signal (PW).
When +6V at J2-7 is present, the base voltage of TR16 and TR25 will be + 12V volts. In this condition, the pulse length in operation is 0.08us and the bandwidth of the receiver is widened to 10
MHz. When pulse length are other than 0.08us, the base of TR16 and TR25 will be 0V, the bandwidth will become narrow at 3 MHz.
6/34
VIDEO DETECTOR CIRCUIT
The video detector circuit is ICl 1 operate as a video detector to remove the 60MHz IF component from the incoming signals. The output signals on ICl 1-12 are inverted to negative going pulses and fed to the video output circuit.
VIDEO OUTPUT CIRCUIT
The video output circuit consists of emitter follower TR18. The emitter follower operates strictly as an impedance transformer to drive the 50 ohms coaxial cable which carries the video signal to the display unit.
TUNING INDICATION CIRCUIT
The tuning indicator circuit consists of amplifier TR19, detector TR20, and emitter follower
TR21, 22. TR21 charges Cl 10 to the detected signal voltage. This voltage is sent to the display unit as a tuning indication voltage via buffer amplifier TR22, with bearing reset pulse. The range of the tuning indication voltage varies normally between +5V ( detuned) and 1 V(tuned in long pulse).
POWER SUPPLY
The power supply converts the ship's mains to necessary DC voltages to operate the radar system.
These output voltages include regulated + 12VDC, +6VDC, and + 250VDC. The A VR converter consists of IC2 and IC3 as well as TRl and TR2. The RVl is normally set by monitoring the
+ 12VDC output at TPl and adjusting for + 12VDC±0.1 VDC with a volt ohm meter.
7/34
2.4 DISPLAY UNIT
The display unit normally contains the Main Control PCB, the Power Supply PCB, the LCD nodule and the Control Panel PCBs.
2.4.1 SIMPLIFIED BLOCK DIAGRAM
FIG. 2 shows the fundamental circuits of the display unit in a simplified functional block diagram.
Most system operations within the display unit occur primarily on the Main Control PCB. It is on this PCB that most of the signal processing takes placed. The following is a brief description of the main circuit functions of the display unit.
2.4.2 MAIN CONTROL PCB
2.4.3 VIDEO INPUT CIRCUITRY
The incoming video signals from the receiver in the scanner are first routed through the FTC circuit components consisting of CD2 and C14. The diode CD2 controlled by the voltage supplied from ICl0-11 which is determined by the front panel RAIN CLUTTER Control.
2.4.4 AID CONVERTER
The video signals from CD2 and C14 are fed to an amplifier TRl and TRl output video signals are converted to digital pulses by 3 comparator ICs IC12, 13, 14. The digital video output is then sent to the system control LSI 1C6.
2.4.5 SYSTEM CONTROL LSI
The system control LSI 1C6 contains video processor, video buffer memory, scan converter, PPI video memory control circuit, various clock input and output circuit, LCD drive signal generator, and system control signal generator circuit.
2.4.6 PPI MEMORY AND GRAPHIC MEMORY
The processed video signals are stored in the buffer memory of the system control LSI, and then read out on the bearing pulse timing. The buffer memory output is fed to PPI memory 1C9 followed by the scan converter data onto its address pins.
And also graphic data from main CPU and GDC are stored in the graphic memory 1C7 and 1C8.
1C7, 1C8 and 1C9 are 64K x 4 bit DRAM. The output data from DRAM are fed to the LCD drive signal timing are controlled by GDC and LCD drive signal are fed to the LCD unit via output buffer
1C21.
8/34
2.4.7 MAIN CPU CIRCUIT
The main CPU circuit consists of CPU IC4, RAM IC2, and ROM IC3. The main CPU control's all of the radar system with GDC and system control LSI according to the front panel key output and the data from the other nay-aid unit. The tuning voltage and gain STC signals are generated by the DIA converter ICl0 outputs which are contrived from CPU.
2.4.8 OPTIONAL INPUTS
The RADAR 1000 MK II can receive various input signals from Nay-aids and compass. 10 more than one data type is present at the radar inputs (for examples; compass and NMEA) a system priority has been established in the radar's software to respond to the inputs in driving the features.
The assigned priorities are set in this manner:
HEADING:
POSITION:
SPEED:
WAYPOINT:
1. Flux Sensor (NMEA 0183 "HDM, HDT, HSC" sentences)
2. Navaid Data (NMEA 0183 "RMC, RMA, VTG" sentences)
1. Navaid Data (NMEA 0183 "RMC, RMA, GLL, GTD" sentences)
1. Navaid Data (NMEA 0183 "RMC, RMA, VTG, l 7 KW" sentences)
1. Navaid Data (NMEA 0183 "RMB, Bl-C" sentences)
2.4.9 POWER SUPPLY
The Power Supply converts the + 12V to the necessary DC voltages to operate the radar display unit. These output voltages include regulated +5VDC, +24VDC, -22VDC, 8VDC, and 300VAC.
The power switch circuit (TR21) can begin operation when the STBY/OFF switch is pressed on the
Control PCB. The STBY signal toggles IC31-1 output and TR21 and TR22 conducts. Then ship's main Voltage fed to the A VR converter circuit on the scanner unit. When the XMJT /OFF key is pressed, IC31-12 operates and TR24 and IC33 to enable the OPE output.
9/34
SECTION3
TROUBLE SHOOTING
3. TROUBLE-SHOOTING GUIDE
While the RADAR 1000 MK II is highly reliable systems, early signs and detection of component fatigue can sometimes be spotted during regular operational checks.
When a problem is observed, corrective service should be arranged to avoid failure at critical tines at sea. In some cases, problems nay be cleared by a system master reset.
3.1 MASTER RESET
The first step in attempting to clear a problem associated with the general operation of this
Radar is to perform a MASTER RESET. This function will clear the Radar's memory and will return it to its factory settings. It may then be necessary to make the INITIAL SETTING and to re-enter the parameters previously established by the operator.
CAUTION
In making checks, be alert to the high voltage points existing throughout the equipment.
3.2 RESET
This reset will clear the radar's memory except INITIAL SETTING. This can be done by pressing the EBLNRM key and while holding, then turning the power on. This should be performed anytime a component or PCB within the radar is replaced.
3.3 FUSE
A fuse seldom blows out without some cause. Even if a fuse is merely replaced and does not blow again, it still may be necessary to make further checks of the circuits associated with the fuse.
TABLE 3-1 shows a table of fuses employed in the equipment.
TABLE 3-1 FUSES USED
Location Part No. Rating Protective Type
Display F401
Current Circuit
SA All circuit
JRC code
Glass tube 6ZXRD00190
10/34
3.4 FAULT FINDING PROCEDURE
Often the display on the LCD can help indicate which major circuit is at fault. It may be quicker to check-out the equipment according to the trouble shooting guide that follows TABLE
3-2.
In general, the common causes of trouble frequently encountered include abnormal resistances, intermittent variable resistors, and switches.
In the following fault finding procedure, it is assumed that only a VOM is available; the use of an oscilloscope amplifies the procedures and may prove necessary in some cases.
TABLE 3-3 is the troubleshooting guide and check-out procedure, TABLE 3-4 shows typical voltages and remittances at significant points throughout the equipment. The internal resistance of the tester used in measurements was 20k O /VDC, 8 k O /V AC.
TABLE 3-2 OPERATION CHECK LIST
Unit to be Check item checked
Correct condition
Remarks Measuring point
Scanner
Unit a. Input voltage 12V CMN-457
Jl-1-2 b. A VR output voltage 12V CMN-457TP1 c. Mag. current 12-20V CMN-457 TP2
Display
Unit a. Input voltage Refer to
Note b. A VR output voltage 5V
12-1-2
TPl-Ground c. Observation of Screen sensitivity, Sweep length, Sweep linearity, Sweep center, Ring and
Illumination. c. Check of the operating controls
!NOTE: Allowable variation of input voltage, DC10.2V-16VI
11/34
Trouble
TABLE 3-3 TROUBLE SHOOTING GUIDE
Remedy
1. Does not start at
OPERATE switch to
STBY.
Check: [DISPLAY]
Blown fuse F401.
Check input power circuits.
Check modulator circuits in scanner.
Faults of contact on CCK-773.
Fault of power supply contact on CMN-457
Faults of switch contact on CMC-970.
2. Scanner fails to rotate. Check: [SCANNER]
Fault on contact on terminal boards.
Fault of MlOl
Fault of drive mechanism.
Faults of motor control contact on CMN-457
3.
4.
Scanner rotates but rotation of sweep is abnormal.
No picture on the screen.
Fault of connection between MlOl.
Check: [DISPLAY, SCANNER]
Fault of main circuit for the Display unit
Fault of LCD display unit or its drive contact.
Check: [DISPLAY]
Fault of LCD drive contact.
Fault of video circuit.
Fault of power supply circuit.
5. Range rings on the screen but no noise and no echoes.
Fault circuit between IF amplifier of receiver unit and input circuit of display unit video amplifier.
Check: [DISPLAY]
Fault of GAIN, STC control contact.
Fault of receiver unit.
Fault of MIC
6. Noise and range the screen If no transmission is present, check the modulator. but no echoes
Check: [SCANNER]
Failure of Local Oscillator tuning. If transmission appears to be present, carry out the Local Oscillator tuning procedures and check the MIC. Fault of MIC
Mixer.
If no transmission is present, Whether the lead wire to magnetron is grounded to chassis.
Fault of magnetron.
12/34
7. Poor sensitivity. Dim echoes.
Trouble Remedy
Check: [SCANNER, DISPLAY]
Reduction of transmitting output power. Fault of magnetron.
Fault of MIC Front End.
Failure of Local Oscillator tuning.
Failure of INTENSITY ADJ.
Fault of video amplifier contact on CMC-970
Fault of receiver unit.
8. No VRM or VRM cannot Check: [DISPLAY] be controlled Fault of CCK-773.
Fault of main contact. (CMC-970)
9. No EBL or EBL cannot be Check: [DISPLAY] controlled Fault of CCK-773.
Fault of main contact. (CMC-970)
10. No alarm zone marker, or Check: [DISPLAY] no alarm sound Fault of CCK-773.
Fault of main contact. (CMC-970)
Fault of Buzzer BZl.
13/34
TABLE 3-4 shows typical voltage and resistances at significant points throughout the equipment.
(A) Inter-unit terminal board
Resistance Measurements shall be made under the following conditions:
POWER switch-off, SlOl-on.
Resistance values shall be measured between measuring point and ground unless otherwise specified, and negative terminal of the tester is grounded as a rule.
The tester used for this measurement is 20k O NDC, 8k ON
Voltage measurements shall be made with the following display control conditions:
POWER switch-ON, RAIN CLUTTER -min, GAIN -max, SEA CLUTTER- min.
Ship' s power supply is DC 12V.
STC-------- MIN
FTC-------- MIN
TUNE----- CENTER
GAIN------ MAX
P.S. = 12V(DC)
TABLE 3-4 TYPICAL VOLTAGES AND RESISTANCES
RADOME RADAR rRADAR 1000 MK Ill (with Inter-unit cable connected)
Measuring Resistance
Point (0)
Voltage (V)
0.25 (nm) 1.5 (nm) 16 (nm)
Remarks
Jl-1 lM< 10 .71 10 .6 10 .55 lA
Jl-2
Jl-3 co
11 11 .99 11 .99 11 .99
2A
+12V
J2-1
J2-2
J2-3
J2-4
J2-5
J2-6
J2-7
20K
SK
0
55
0
12K
9K
13 .72
1 .83
0
-0 .23
2 .5m
4 .4
3 .95
13 .60
1 .70
0
-0 .23
2 .5m
4 .4
7 .27
13 .60
1 .71
0
-0 .23
2 .5m
4 .4
10 .7
TUNV
Tl/GS
TIR
VD
VDR
BZ/TUNI
PW
14/34
(B) Remittances at inter-unit connector without connection of cables.
I
NOTE: Refer to measurement conditions given in item (A)
I
SCANNER UNIT (Without Inter-unit cable connected)
Measuring Point Resistance ( 0) Function
Jl-1
Jl-2
Jl-3
00
00
12 lA
2A
+12
12-l
12-2
12-3
12-4
12-5
12-6
12-7
00
00
0
5M<
0
200
00
TUNV
Tl/GS
TIR
VD
VDR
BZ/TUNI
PW
DISPLAY UNIT (Without Inter-unit cable connected)
Measuring Point
Jl-1
Jl-2
Jl-3
Jl-4
Jl-5
Jl-6
Jl-7
Jl-8
Jl-9
Jl-10
Resistance ( 0)
00
2M lOK
55
0
0
140
32K
1.2K
50
Function lA
2A
PW
VD
VDR
TIR/GSR
Tl/GS
BZ/TUNI
TUNV
+12
12-l
12-2
12-3
12-4
12-5
12-6
12-7
2M<
2M<
00
00
00
00
0
SHIP'S MAIN(+)
SHIP'S MAIN(-)
NAV (+)
NAV (-)
COMPASS(+)
COMPASS(-)
E
15/34
SECTION 4
MAINTENANCE
4.1 GENERAL
It is necessary to perform the maintenance services listed below to keep the RADAR 1000 MK II in good working conditions. Proper maintenance of the RADAR 1000 MK II minimizes the possibility of machine failures. The maintenance operations that are common to all components of the RADAR 1000 MK II is listed below.
(1) Cleaning
Remove dirt, dust, or water-spray from the RADAR 1000 MK II enclosure and keep it as clean as possible. Use a dry lint-free cloth.
(2) Screw inspection
Check the screws used to assemble and secure the components of the RADAR 1000 MK II for loose connection.
(3) Cabling check
Check the cables connecting between the components (between the scanner unit and display unit, display unit and power supply, and display unit and optional devices) for poor connection.
CAUTION
When servicing the RADAR 1000 MK II, be sure to turn it off to prevent electric shock.
If a rectifier unit is used, in particular, turn off power to the display unit. Note that voltages from the rectifier unit are always present even if the radar is stopped.
4.2 SCANNER UNIT
When inspecting the scanner unit of the RADAR 1000 MK II, be sure to turn off power to the display unit. Keep watches or magnetic cards away from the modulator block as it contains a magnetron having a strong magnetic force.
4.2.1 Radome Scanner Unit
(1) Radome
A radome surface contaminated by smoke, dust, or paint would cause attenuation or reflections of radio waves, resulting in reduced radar performance. Periodically check the radome scanner unit. If it proves dirty, wipe the radome surface with a soft lint-free cloth moistened with alcohol or damped cloth.
*Never use solvents such as thinner, gasoline, benzene, trichlene, and ketone.
(2) Lubricating gears
Check the mounting bolts for loose connection occasionally.
4.3 DISPLAY UNIT
4.3.1 Cleaning the Screen
Dust on the LCD would reduce the transparency and make the video image dim. Wipe the screen surface with a soft lint-free cloth (made of flannel or cotton). A cloth moistened with an antiseptic agent would cause little problem. When using it, wipe softly; never rub the screen surface with force.
16/34
APPENDIX
RADAR 1000 MK II PARTS LIST
Description
Radome Scanner Unit
Diode Limiter (AlOl)
Modulator/Receiver PCB
Motor Assy. (Ml0l)
Magnetron (V201)
SHM Switch
Display Unit
Main Control PCB
Control PCB
LCD Module
Inter-unit Cable
Console Mounting Screw
Part No. Drawing Fig. No.
-
NKE-1053
5EZAA00033
CMN-457
7BDRD0036B
5VMAA00073
5KRAA00058
NCD-3717A
CMC-970
CCK-773
CFQ-8768-15 (15m)
CFQ-8571-10 (10m)*Option -
-
MPTG30380 -
105
105
106
105
105
105
107
108, 109
110
107
17/34
No.
1
2
Upper Redome
Lower Redome
2-1 Lower Redome
2-2 Packing
2-3 Spacer
2-4 Air Hole Sheet
2-5 Screw Washer
2-6 Seal Washer
2-7 Bolt (M6 x 40)
3
4
2-8 Washer(W6)
2-9 Spring Lock Washer (5W6)
Wave Guide
Flange
19
20
21
22
12
13
14
15
5 Radiation Parts
5-1 Antenna PCB
5-2 Antenna Shaft
5-3 Fitting Board for PCB
6
5-4 Tapping Screw (2.6 x 8)
Main Shaft Parts
6-1 Main Shaft
6-2 Spur Gear
6-3 Spacer
6-4 Bearing Holding Board
6-5 Bearing
6-6 Magnet
6-7 Sems Screw ( 4 x 12) Steel
6-8 Snap Ring E-type (ER6)
7
8
9
10
11
Motor
MIC
Diode Limiter
Magnetron
Read switch
Modulator/Receiver PCB
Housing
16
17
18
Packing
Shield Cover
Holding Board
Foundation Bed
Holding Board 1 (for PCB)
Holding Board 2 (for PCB)
Spur Gear 2
Cramp
Cramp
ASSEMBLY DRAWING LIST
NKE-1053 SCANNER UNIT
Part Name JRC Code No.
7PCRD1422
MTL307473
MTD300768
BRTG02286
MPGK30454
MTC300593
MTV301808
MTL307435
MTD300782
BRGKOS206
5MPAB00001
BSNC04012B
BSER06000S
7BDRD0036B
5EZAA00031
5EZAA00033
5VMAA00073
5KRAA00058
CMN-457
MTC300566
MTT304162
MTD300767
MTD300765
MTD300766
MTD300780
MTD300781
MTV301839
BRBP05336
BRBP00131
MPBX34675
MPBX34676
MTV301807
MTT304033
MTT304120
MPXP31079
BRTG03255
BRTG02490
BRTG00930
BRTG00186
BSSW06000S
MPAB30674
MPAB30675
MPAE30161
1/2
18/34
No.
23
24
25
26
27
28
29
30
31
32
33
34
35
36
ASSEMBLY DRAWING LIST
NKE-1053 SCANNER UNIT
Part Name JRC Code No.
Bolt (M4xl2)
Sems Screw (C-Type 4 x 12)
Sems Screw (C-Type 4 x 35)
Sems Screw (C-Type 4 x 8)
Sems Screw (C-type 3 x 12)
Screw With Flange
Sems Screw ( C-Type 3 x 6)
Snap Ring E-type
Spring Lock Washer
Spring Lock Washer
Nut
Nut
Screw
Fan
BRTG02093
BSNC04012B
BSNC04035B
BSNC04008B
BSNC03012B
BRTG06040
BSNC03006S
BSER04000S
BSSW04000S
BSSW03000S
BSLW03000S
BSLN03000B
-
BSNK03012B
2/2
19/34
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2-3
20/34
- -
____
_: NKE-1053
No.
1
15
16
17
18
19
10
11
12
13
14
2
3
4
5
6
7
8
9
20
21
22
23
24
25
ASSEMBLY DRAWING LIST
NCD-3717A DISPLAY UNIT
Part Name JRC Code No.
Front Panel
Rear Cover
Panel Filter
Panel Gasket
Contact Rubber
Light Guide
Sealed Case
Dial
Cap
Packing
Waterproof Sheet
Cover
Hook Board
PCB
PCB
LCD Module
MTV303720
MTV303721
MTT308713
MTV303723
MTV303724
MTV301799
14TD300753
MPHD30171
MPPK30372
MTT304002
MPXP30307
-
MTV303727
MTV303728
CMC-970
CCK-773
Tapping Screw (3 x 12 BS)
Tapping Screw (3 x 8 BS)
Tapping Screw (3 x 16 SUS)
Tapping Screw ( 4 x 8 SUS)
Screw (M4 x 8 SW W SUS)
Rubber Washer
Sun Cover
Bracket
Tapping Screw (5 x 20 SUS)
BRTG03233
BRTG02970
BRTG04818
BRTG05965
BSNC04008B
MTT301458A
MTV303722
MPBX39815
MPTG30149
1 / 1
21/34
22/34
<( l""'--
M
I
0
0 z
LIST OF SCHEMATIC DRAWINGS
Fig. 101
Fig. 102
Fig. 103
Fig. 104
GENERAL SYSTEM OF RADAR 1000 MK II
MOUNTING DIMENSIONS OF DISPLAY UNIT NCD-3717 A
MOUNTING DIMENSIONS OF SCANNER UNIT NKE-1053
INTERCONNECTION DIAGRAM OF RADAR 1000 MK II
Fig. 105
Fig. 106
Fig. 107
Fig. 108
Fig. 109
Fig. 110
Fig. 111
Fig. 112
INTERNAL CONNECTIONS OF SCANNER UNIT NKE-1053
CIRCUIT DRAWING OF MODULATOR/RECEIVER CMN-457
INTERNAL CONNECTIONS OF DISPLAY UNIT NCD-3717 A
CIRCUIT DRAWING OF MAIN CONTROL UNIT CMC-970 (1/2)
CIRCUIT DRAWING OF MAIN CONTROL UNIT CMC-970 (2/2)
CIRCUIT DRAWING OF CONTROL UNIT CCK-773
RADAR 1000 MK II RADOME TEMPLATE
RADAR 1000 MK II DISPLAY FLUSH MOUNT TEMPLATE
23/34
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CABLE INLET
MAXrn.
8-CORES
COMPOSITE CABLE
15m:CFQ8768-15
10m:CFQ8571-10(option)
20m:CFQ8768-20(option)
IE 187
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4-M6
22mm DEEP
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CONNECTORS
-
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SHIP'S MAINS
MOUNTING
DIMENSIONS
POWER CABLE
CFO-8572
C UN IT: m m J
C 1 m m = 1 /25. 4 i n ch J
Fig. 101 General System Diagram
24/34
83
_,,
~ - - r...._.· _ _ _
COLOR GRAY
MASS Approx. 1.2kg
~d
Fig. 102 Display Mounting Dimensions
124. 5
(UNIT:
mm)
(1 mm= 1125.4inch)
-
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CABLE INLET
COLOR WHITE
MASS Approx. 4kg
CJ
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4 PLACES
22mm DEEP
Fig. 103 Scanner Mounting Dimensions
(UN IT:
mm)
(1 mm= 1/25.4inch)
25/34
DISPLAY UNIT NCD-3717 A
N
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E
SHIP'S MAINTS (+)I ( }-t-T.RED
SHIP'S MAINTS (-)
NAV-AID (+)
i---=1
\
TO SHIP'S POWER
TONAV-AID
TO COMPASS
NAV-AID (-)
COMPASS(+)
GRN
BLU
.
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IA
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CFQ-8768-15(15m)
CFQ-8571-l0(l0m)*
CFQ-87 68-20(20m) *
*option
SCANNER UNIT NKE-1053
I
Pl
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IA
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Modulator/Receiver
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Fig.107 NCD-3717 A Display Unit
Internal Connection
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32/34
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For further information contact:
[JRC] 3apan
RadkJ Co.,.fld~
Since 1915
HEAD OFFICE &
SALES DEPT.
Nittochi Nishi-Shinjuku bldg.
10-1,Nishi-Shinjuku 6-chome, Shinjuku-ku,
Tokyo 160-8328, JAPAN
Phone : +81-3-3348-0151
Fax : +81-3-3348-3648
MAIN PLANT 1-1, Shimorenjaku 5-chome, Mitaka-shi,
Tokyo 181-8510, JAPAN
Phone : +81-422-45-9111
Fax : +81-422-45-9110

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Key features
- Maximum range: 16 Nautical Miles
- Bearing accuracy: ± 1 degree
- Display device: LCD
- Automatic tuning
- Various display features (VRM, EBL, etc.)